--- a/hotspot/.hgtags Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/.hgtags Wed Jul 05 16:49:40 2017 +0200
@@ -26,3 +26,4 @@
8b22ccb5aba2c6c11bddf6488a7bb7ef5b4bf2be jdk7-b49
dae503d9f04c1a11e182dbf7f770509c28dc0609 jdk7-b50
2581d90c6c9b2012da930eb4742add94a03069a0 jdk7-b51
+1b1e8f1a4fe8cebc01c022484f78148e17b62a0d jdk7-b52
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/Debugger.java Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/Debugger.java Wed Jul 05 16:49:40 2017 +0200
@@ -118,9 +118,9 @@
public long getJIntSize();
public long getJLongSize();
public long getJShortSize();
- public long getHeapBase();
public long getHeapOopSize();
- public long getLogMinObjAlignmentInBytes();
+ public long getNarrowOopBase();
+ public int getNarrowOopShift();
public ReadResult readBytesFromProcess(long address, long numBytes)
throws DebuggerException;
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/DebuggerBase.java Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/DebuggerBase.java Wed Jul 05 16:49:40 2017 +0200
@@ -56,8 +56,8 @@
// heap data.
protected long oopSize;
protected long heapOopSize;
- protected long heapBase; // heap base for compressed oops.
- protected long logMinObjAlignmentInBytes; // Used to decode compressed oops.
+ protected long narrowOopBase; // heap base for compressed oops.
+ protected int narrowOopShift; // shift to decode compressed oops.
// Should be initialized if desired by calling initCache()
private PageCache cache;
@@ -159,10 +159,10 @@
javaPrimitiveTypesConfigured = true;
}
- public void putHeapConst(long heapBase, long heapOopSize, long logMinObjAlignmentInBytes) {
- this.heapBase = heapBase;
+ public void putHeapConst(long heapOopSize, long narrowOopBase, int narrowOopShift) {
this.heapOopSize = heapOopSize;
- this.logMinObjAlignmentInBytes = logMinObjAlignmentInBytes;
+ this.narrowOopBase = narrowOopBase;
+ this.narrowOopShift = narrowOopShift;
}
/** May be called by subclasses if desired to initialize the page
@@ -459,7 +459,7 @@
long value = readCInteger(address, getHeapOopSize(), true);
if (value != 0) {
// See oop.inline.hpp decode_heap_oop
- value = (long)(heapBase + (long)(value << logMinObjAlignmentInBytes));
+ value = (long)(narrowOopBase + (long)(value << narrowOopShift));
}
return value;
}
@@ -545,10 +545,10 @@
return heapOopSize;
}
- public long getHeapBase() {
- return heapBase;
+ public long getNarrowOopBase() {
+ return narrowOopBase;
}
- public long getLogMinObjAlignmentInBytes() {
- return logMinObjAlignmentInBytes;
+ public int getNarrowOopShift() {
+ return narrowOopShift;
}
}
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/JVMDebugger.java Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/JVMDebugger.java Wed Jul 05 16:49:40 2017 +0200
@@ -42,5 +42,5 @@
long jintSize,
long jlongSize,
long jshortSize);
- public void putHeapConst(long heapBase, long heapOopSize, long logMinObjAlignment);
+ public void putHeapConst(long heapOopSize, long narrowOopBase, int narrowOopShift);
}
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/remote/RemoteDebugger.java Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/remote/RemoteDebugger.java Wed Jul 05 16:49:40 2017 +0200
@@ -65,9 +65,10 @@
public long getJIntSize() throws RemoteException;
public long getJLongSize() throws RemoteException;
public long getJShortSize() throws RemoteException;
- public long getHeapBase() throws RemoteException;
public long getHeapOopSize() throws RemoteException;
- public long getLogMinObjAlignmentInBytes() throws RemoteException;
+ public long getNarrowOopBase() throws RemoteException;
+ public int getNarrowOopShift() throws RemoteException;
+
public boolean areThreadsEqual(long addrOrId1, boolean isAddress1,
long addrOrId2, boolean isAddress2) throws RemoteException;
public int getThreadHashCode(long addrOrId, boolean isAddress) throws RemoteException;
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/remote/RemoteDebuggerClient.java Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/remote/RemoteDebuggerClient.java Wed Jul 05 16:49:40 2017 +0200
@@ -85,9 +85,9 @@
jlongSize = remoteDebugger.getJLongSize();
jshortSize = remoteDebugger.getJShortSize();
javaPrimitiveTypesConfigured = true;
- heapBase = remoteDebugger.getHeapBase();
+ narrowOopBase = remoteDebugger.getNarrowOopBase();
+ narrowOopShift = remoteDebugger.getNarrowOopShift();
heapOopSize = remoteDebugger.getHeapOopSize();
- logMinObjAlignmentInBytes = remoteDebugger.getLogMinObjAlignmentInBytes();
}
catch (RemoteException e) {
throw new DebuggerException(e);
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/remote/RemoteDebuggerServer.java Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/remote/RemoteDebuggerServer.java Wed Jul 05 16:49:40 2017 +0200
@@ -114,17 +114,18 @@
return debugger.getJShortSize();
}
- public long getHeapBase() throws RemoteException {
- return debugger.getHeapBase();
- }
-
public long getHeapOopSize() throws RemoteException {
return debugger.getHeapOopSize();
}
- public long getLogMinObjAlignmentInBytes() throws RemoteException {
- return debugger.getLogMinObjAlignmentInBytes();
+ public long getNarrowOopBase() throws RemoteException {
+ return debugger.getNarrowOopBase();
}
+
+ public int getNarrowOopShift() throws RemoteException {
+ return debugger.getNarrowOopShift();
+ }
+
public boolean areThreadsEqual(long addrOrId1, boolean isAddress1,
long addrOrId2, boolean isAddress2) throws RemoteException {
ThreadProxy t1 = getThreadProxy(addrOrId1, isAddress1);
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/memory/Universe.java Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/memory/Universe.java Wed Jul 05 16:49:40 2017 +0200
@@ -53,7 +53,8 @@
// system obj array klass object
private static sun.jvm.hotspot.types.OopField systemObjArrayKlassObjField;
- private static AddressField heapBaseField;
+ private static AddressField narrowOopBaseField;
+ private static CIntegerField narrowOopShiftField;
static {
VM.registerVMInitializedObserver(new Observer() {
@@ -86,7 +87,8 @@
systemObjArrayKlassObjField = type.getOopField("_systemObjArrayKlassObj");
- heapBaseField = type.getAddressField("_heap_base");
+ narrowOopBaseField = type.getAddressField("_narrow_oop._base");
+ narrowOopShiftField = type.getCIntegerField("_narrow_oop._shift");
}
public Universe() {
@@ -100,14 +102,18 @@
}
}
- public static long getHeapBase() {
- if (heapBaseField.getValue() == null) {
+ public static long getNarrowOopBase() {
+ if (narrowOopBaseField.getValue() == null) {
return 0;
} else {
- return heapBaseField.getValue().minus(null);
+ return narrowOopBaseField.getValue().minus(null);
}
}
+ public static int getNarrowOopShift() {
+ return (int)narrowOopShiftField.getValue();
+ }
+
/** Returns "TRUE" iff "p" points into the allocated area of the heap. */
public boolean isIn(Address p) {
return heap().isIn(p);
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/VM.java Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/VM.java Wed Jul 05 16:49:40 2017 +0200
@@ -342,11 +342,12 @@
throw new RuntimeException("Attempt to initialize VM twice");
}
soleInstance = new VM(db, debugger, debugger.getMachineDescription().isBigEndian());
- debugger.putHeapConst(Universe.getHeapBase(), soleInstance.getHeapOopSize(),
- soleInstance.logMinObjAlignmentInBytes);
+ debugger.putHeapConst(soleInstance.getHeapOopSize(), Universe.getNarrowOopBase(),
+ Universe.getNarrowOopShift());
for (Iterator iter = vmInitializedObservers.iterator(); iter.hasNext(); ) {
((Observer) iter.next()).update(null, null);
}
+
}
/** This is used by the debugging system */
--- a/hotspot/make/hotspot_version Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/make/hotspot_version Wed Jul 05 16:49:40 2017 +0200
@@ -35,7 +35,7 @@
HS_MAJOR_VER=15
HS_MINOR_VER=0
-HS_BUILD_NUMBER=03
+HS_BUILD_NUMBER=04
JDK_MAJOR_VER=1
JDK_MINOR_VER=7
--- a/hotspot/make/jprt.properties Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/make/jprt.properties Wed Jul 05 16:49:40 2017 +0200
@@ -19,12 +19,12 @@
# Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
# CA 95054 USA or visit www.sun.com if you need additional information or
# have any questions.
-#
+#
#
# Properties for jprt
-# All build result bundles are full jdks, so the 64bit testing does not
+# All build result bundles are full jdks, so the 64bit testing does not
# need the 32bit sibling bundle installed.
# Note: If the hotspot/make/Makefile changed to only bundle the 64bit files
# when bundling 64bit, and stripped out the 64bit files from any 32bit
@@ -89,60 +89,52 @@
${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-jvm98, \
${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-scimark, \
${jprt.my.solaris.sparc}-product-{c1|c2}-runThese, \
- ${jprt.my.solaris.sparc}-product-{c1|c2}-runThese_Xcomp, \
- ${jprt.my.solaris.sparc}-product-{c1|c2}-runThese_Xcomp_2, \
- ${jprt.my.solaris.sparc}-product-{c1|c2}-runThese_Xcomp_3, \
${jprt.my.solaris.sparc}-fastdebug-c1-runThese_Xshare, \
${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-GCBasher_default, \
${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-GCBasher_SerialGC, \
${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-GCBasher_ParallelGC, \
${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-GCBasher_ParNewGC, \
${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-GCBasher_CMS, \
- ${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-GCBasher_default_2, \
- ${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-GCBasher_SerialGC_2, \
- ${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-GCBasher_ParallelGC_2, \
- ${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-GCBasher_ParNewGC_2, \
- ${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-GCBasher_CMS_2, \
+ ${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-GCBasher_G1, \
+ ${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-GCBasher_ParOldGC, \
${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-GCOld_default, \
${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-GCOld_SerialGC, \
${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-GCOld_ParallelGC, \
${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-GCOld_ParNewGC, \
${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-GCOld_CMS, \
+ ${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-GCOld_G1, \
+ ${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-GCOld_ParOldGC, \
${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-jbb_default, \
${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-jbb_SerialGC, \
${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-jbb_ParallelGC, \
${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-jbb_CMS, \
- ${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-scimark_2, \
- ${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-scimark_3
+ ${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-jbb_G1, \
+ ${jprt.my.solaris.sparc}-{product|fastdebug}-{c1|c2}-jbb_ParOldGC
jprt.my.solaris.sparcv9.test.targets= \
${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-jvm98, \
${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-scimark, \
${jprt.my.solaris.sparcv9}-product-c2-runThese, \
- ${jprt.my.solaris.sparcv9}-product-c2-runThese_Xcomp, \
- ${jprt.my.solaris.sparcv9}-product-c2-runThese_Xcomp_2, \
- ${jprt.my.solaris.sparcv9}-product-c2-runThese_Xcomp_3, \
${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-GCBasher_default, \
${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-GCBasher_SerialGC, \
${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-GCBasher_ParallelGC, \
${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-GCBasher_ParNewGC, \
${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-GCBasher_CMS, \
- ${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-GCBasher_default_2, \
- ${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-GCBasher_SerialGC_2, \
- ${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-GCBasher_ParallelGC_2, \
- ${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-GCBasher_ParNewGC_2, \
- ${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-GCBasher_CMS_2, \
+ ${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-GCBasher_G1, \
+ ${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-GCBasher_ParOldGC, \
${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-GCOld_default, \
${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-GCOld_SerialGC, \
${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-GCOld_ParallelGC, \
${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-GCOld_ParNewGC, \
${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-GCOld_CMS, \
+ ${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-GCOld_G1, \
+ ${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-GCOld_ParOldGC, \
${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-jbb_default, \
${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-jbb_SerialGC, \
${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-jbb_ParallelGC, \
${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-jbb_CMS, \
- ${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-scimark_2, \
- ${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-scimark_3
+ ${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-jbb_G1, \
+ ${jprt.my.solaris.sparcv9}-{product|fastdebug}-c2-jbb_ParOldGC
jprt.my.solaris.x64.test.targets= \
${jprt.my.solaris.x64}-{product|fastdebug}-c2-jvm98, \
@@ -154,73 +146,80 @@
${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCBasher_ParallelGC, \
${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCBasher_ParNewGC, \
${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCBasher_CMS, \
- ${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCBasher_default_2, \
- ${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCBasher_SerialGC_2, \
- ${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCBasher_ParallelGC_2, \
- ${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCBasher_ParNewGC_2, \
- ${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCBasher_CMS_2, \
+ ${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCBasher_G1, \
+ ${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCBasher_ParOldGC, \
${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCOld_default, \
${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCOld_SerialGC, \
${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCOld_ParallelGC, \
${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCOld_ParNewGC, \
${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCOld_CMS, \
+ ${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCOld_G1, \
+ ${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCOld_ParOldGC, \
${jprt.my.solaris.x64}-{product|fastdebug}-c2-jbb_default, \
${jprt.my.solaris.x64}-{product|fastdebug}-c2-jbb_SerialGC, \
${jprt.my.solaris.x64}-{product|fastdebug}-c2-jbb_ParallelGC, \
- ${jprt.my.solaris.x64}-{product|fastdebug}-c2-jbb_CMS
+ ${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCOld_CMS, \
+ ${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCOld_G1, \
+ ${jprt.my.solaris.x64}-{product|fastdebug}-c2-GCOld_ParOldGC
jprt.my.solaris.i586.test.targets= \
${jprt.my.solaris.i586}-{product|fastdebug}-{c1|c2}-jvm98, \
${jprt.my.solaris.i586}-{product|fastdebug}-{c1|c2}-scimark, \
${jprt.my.solaris.i586}-product-{c1|c2}-runThese_Xcomp, \
- ${jprt.my.solaris.i586}-product-c2-runThese_Xcomp_2, \
- ${jprt.my.solaris.i586}-fastdebug-c1-runThese_Xcomp_2, \
+ ${jprt.my.solaris.i586}-fastdebug-c1-runThese_Xcomp, \
${jprt.my.solaris.i586}-fastdebug-c1-runThese_Xshare, \
${jprt.my.solaris.i586}-product-c1-GCBasher_default, \
${jprt.my.solaris.i586}-product-c1-GCBasher_SerialGC, \
${jprt.my.solaris.i586}-product-c1-GCBasher_ParallelGC, \
${jprt.my.solaris.i586}-product-c1-GCBasher_ParNewGC, \
${jprt.my.solaris.i586}-product-c1-GCBasher_CMS, \
+ ${jprt.my.solaris.i586}-product-c1-GCBasher_G1, \
+ ${jprt.my.solaris.i586}-product-c1-GCBasher_ParOldGC, \
${jprt.my.solaris.i586}-fastdebug-c2-GCBasher_default, \
${jprt.my.solaris.i586}-fastdebug-c2-GCBasher_SerialGC, \
${jprt.my.solaris.i586}-fastdebug-c2-GCBasher_ParallelGC, \
${jprt.my.solaris.i586}-fastdebug-c2-GCBasher_ParNewGC, \
${jprt.my.solaris.i586}-fastdebug-c2-GCBasher_CMS, \
+ ${jprt.my.solaris.i586}-fastdebug-c2-GCBasher_G1, \
+ ${jprt.my.solaris.i586}-fastdebug-c2-GCBasher_ParOldGC, \
${jprt.my.solaris.i586}-product-c1-GCOld_default, \
${jprt.my.solaris.i586}-product-c1-GCOld_SerialGC, \
${jprt.my.solaris.i586}-product-c1-GCOld_ParallelGC, \
${jprt.my.solaris.i586}-product-c1-GCOld_ParNewGC, \
${jprt.my.solaris.i586}-product-c1-GCOld_CMS, \
+ ${jprt.my.solaris.i586}-product-c1-GCOld_G1, \
+ ${jprt.my.solaris.i586}-product-c1-GCOld_ParOldGC, \
${jprt.my.solaris.i586}-fastdebug-c2-jbb_default, \
${jprt.my.solaris.i586}-fastdebug-c2-jbb_ParallelGC, \
${jprt.my.solaris.i586}-fastdebug-c2-jbb_CMS, \
- ${jprt.my.solaris.i586}-{product|fastdebug}-{c1|c2}-scimark_2, \
- ${jprt.my.solaris.i586}-{product|fastdebug}-{c1|c2}-scimark_3
+ ${jprt.my.solaris.i586}-fastdebug-c2-jbb_G1, \
+ ${jprt.my.solaris.i586}-fastdebug-c2-jbb_ParOldGC
jprt.my.linux.i586.test.targets = \
${jprt.my.linux.i586}-{product|fastdebug}-{c1|c2}-jvm98, \
${jprt.my.linux.i586}-{product|fastdebug}-{c1|c2}-scimark, \
${jprt.my.linux.i586}-product-c1-runThese_Xcomp, \
- ${jprt.my.linux.i586}-product-c1-runThese_Xcomp_2, \
- ${jprt.my.linux.i586}-product-c1-runThese_Xcomp_3, \
${jprt.my.linux.i586}-fastdebug-c1-runThese_Xshare, \
${jprt.my.linux.i586}-fastdebug-c2-runThese_Xcomp, \
- ${jprt.my.linux.i586}-fastdebug-c2-runThese_Xcomp_2, \
${jprt.my.linux.i586}-{product|fastdebug}-{c1|c2}-GCBasher_default, \
${jprt.my.linux.i586}-{product|fastdebug}-{c1|c2}-GCBasher_SerialGC, \
${jprt.my.linux.i586}-{product|fastdebug}-{c1|c2}-GCBasher_ParallelGC, \
${jprt.my.linux.i586}-{product|fastdebug}-{c1|c2}-GCBasher_ParNewGC, \
${jprt.my.linux.i586}-{product|fastdebug}-{c1|c2}-GCBasher_CMS, \
+ ${jprt.my.linux.i586}-{product|fastdebug}-{c1|c2}-GCBasher_G1, \
+ ${jprt.my.linux.i586}-{product|fastdebug}-{c1|c2}-GCBasher_ParOldGC, \
${jprt.my.linux.i586}-product-{c1|c2}-GCOld_default, \
${jprt.my.linux.i586}-product-{c1|c2}-GCOld_SerialGC, \
${jprt.my.linux.i586}-product-{c1|c2}-GCOld_ParallelGC, \
${jprt.my.linux.i586}-product-{c1|c2}-GCOld_ParNewGC, \
${jprt.my.linux.i586}-product-{c1|c2}-GCOld_CMS, \
+ ${jprt.my.linux.i586}-product-{c1|c2}-GCOld_G1, \
+ ${jprt.my.linux.i586}-product-{c1|c2}-GCOld_ParOldGC, \
${jprt.my.linux.i586}-{product|fastdebug}-c1-jbb_default, \
${jprt.my.linux.i586}-{product|fastdebug}-c1-jbb_ParallelGC, \
${jprt.my.linux.i586}-{product|fastdebug}-c1-jbb_CMS, \
- ${jprt.my.linux.i586}-{product|fastdebug}-c2-scimark_2, \
- ${jprt.my.linux.i586}-{product|fastdebug}-c2-scimark_3
+ ${jprt.my.linux.i586}-{product|fastdebug}-c1-jbb_G1, \
+ ${jprt.my.linux.i586}-{product|fastdebug}-c1-jbb_ParOldGC
jprt.my.linux.x64.test.targets = \
${jprt.my.linux.x64}-{product|fastdebug}-c2-jvm98, \
@@ -230,15 +229,19 @@
${jprt.my.linux.x64}-{product|fastdebug}-c2-GCBasher_ParallelGC, \
${jprt.my.linux.x64}-{product|fastdebug}-c2-GCBasher_ParNewGC, \
${jprt.my.linux.x64}-{product|fastdebug}-c2-GCBasher_CMS, \
+ ${jprt.my.linux.x64}-{product|fastdebug}-c2-GCBasher_G1, \
+ ${jprt.my.linux.x64}-{product|fastdebug}-c2-GCBasher_ParOldGC, \
${jprt.my.linux.x64}-{product|fastdebug}-c2-GCOld_default, \
${jprt.my.linux.x64}-{product|fastdebug}-c2-GCOld_SerialGC, \
${jprt.my.linux.x64}-{product|fastdebug}-c2-GCOld_ParallelGC, \
${jprt.my.linux.x64}-{product|fastdebug}-c2-GCOld_ParNewGC, \
${jprt.my.linux.x64}-{product|fastdebug}-c2-GCOld_CMS, \
+ ${jprt.my.linux.x64}-{product|fastdebug}-c2-GCOld_G1, \
+ ${jprt.my.linux.x64}-{product|fastdebug}-c2-GCOld_ParOldGC, \
${jprt.my.linux.x64}-{product|fastdebug}-c2-jbb_default, \
${jprt.my.linux.x64}-{product|fastdebug}-c2-jbb_ParallelGC, \
- ${jprt.my.linux.x64}-{product|fastdebug}-c2-scimark_2, \
- ${jprt.my.linux.x64}-{product|fastdebug}-c2-scimark_3
+ ${jprt.my.linux.x64}-{product|fastdebug}-c2-jbb_G1, \
+ ${jprt.my.linux.x64}-{product|fastdebug}-c2-jbb_ParOldGC
jprt.my.windows.i586.test.targets = \
${jprt.my.windows.i586}-{product|fastdebug}-{c1|c2}-jvm98, \
@@ -251,16 +254,20 @@
${jprt.my.windows.i586}-{product|fastdebug}-{c1|c2}-GCBasher_ParallelGC, \
${jprt.my.windows.i586}-{product|fastdebug}-{c1|c2}-GCBasher_ParNewGC, \
${jprt.my.windows.i586}-{product|fastdebug}-{c1|c2}-GCBasher_CMS, \
+ ${jprt.my.windows.i586}-{product|fastdebug}-{c1|c2}-GCBasher_G1, \
+ ${jprt.my.windows.i586}-{product|fastdebug}-{c1|c2}-GCBasher_ParOldGC, \
${jprt.my.windows.i586}-product-{c1|c2}-GCOld_default, \
${jprt.my.windows.i586}-product-{c1|c2}-GCOld_SerialGC, \
${jprt.my.windows.i586}-product-{c1|c2}-GCOld_ParallelGC, \
${jprt.my.windows.i586}-product-{c1|c2}-GCOld_ParNewGC, \
${jprt.my.windows.i586}-product-{c1|c2}-GCOld_CMS, \
+ ${jprt.my.windows.i586}-product-{c1|c2}-GCOld_G1, \
+ ${jprt.my.windows.i586}-product-{c1|c2}-GCOld_ParOldGC, \
${jprt.my.windows.i586}-{product|fastdebug}-{c1|c2}-jbb_default, \
${jprt.my.windows.i586}-product-{c1|c2}-jbb_ParallelGC, \
${jprt.my.windows.i586}-product-{c1|c2}-jbb_CMS, \
- ${jprt.my.windows.i586}-product-{c1|c2}-scimark_2, \
- ${jprt.my.windows.i586}-product-{c1|c2}-scimark_3
+ ${jprt.my.windows.i586}-product-{c1|c2}-jbb_G1, \
+ ${jprt.my.windows.i586}-product-{c1|c2}-jbb_ParOldGC
jprt.my.windows.x64.test.targets = \
${jprt.my.windows.x64}-{product|fastdebug}-c2-jvm98, \
@@ -272,16 +279,20 @@
${jprt.my.windows.x64}-{product|fastdebug}-c2-GCBasher_ParallelGC, \
${jprt.my.windows.x64}-{product|fastdebug}-c2-GCBasher_ParNewGC, \
${jprt.my.windows.x64}-{product|fastdebug}-c2-GCBasher_CMS, \
+ ${jprt.my.windows.x64}-{product|fastdebug}-c2-GCBasher_G1, \
+ ${jprt.my.windows.x64}-{product|fastdebug}-c2-GCBasher_ParOldGC, \
${jprt.my.windows.x64}-{product|fastdebug}-c2-GCOld_default, \
${jprt.my.windows.x64}-{product|fastdebug}-c2-GCOld_SerialGC, \
${jprt.my.windows.x64}-{product|fastdebug}-c2-GCOld_ParallelGC, \
${jprt.my.windows.x64}-{product|fastdebug}-c2-GCOld_ParNewGC, \
${jprt.my.windows.x64}-{product|fastdebug}-c2-GCOld_CMS, \
+ ${jprt.my.windows.x64}-{product|fastdebug}-c2-GCOld_G1, \
+ ${jprt.my.windows.x64}-{product|fastdebug}-c2-GCOld_ParOldGC, \
${jprt.my.windows.x64}-{product|fastdebug}-c2-jbb_default, \
${jprt.my.windows.x64}-product-c2-jbb_CMS, \
${jprt.my.windows.x64}-product-c2-jbb_ParallelGC, \
- ${jprt.my.windows.x64}-{product|fastdebug}-c2-scimark_2, \
- ${jprt.my.windows.x64}-{product|fastdebug}-c2-scimark_3
+ ${jprt.my.windows.x64}-product-c2-jbb_G1, \
+ ${jprt.my.windows.x64}-product-c2-jbb_ParOldGC
# The complete list of test targets for jprt
--- a/hotspot/make/windows/build_vm_def.sh Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/make/windows/build_vm_def.sh Wed Jul 05 16:49:40 2017 +0200
@@ -52,6 +52,19 @@
RM="$MKS_HOME/rm.exe"
DUMPBIN="link.exe /dump"
+# When called from IDE the first param should contain the link version, otherwise may be nill
+if [ "x$1" != "x" ]; then
+LINK_VER="$1"
+fi
+
+if [ "x$LINK_VER" != "x800" -a "x$LINK_VER" != "x900" ]; then
$DUMPBIN /symbols *.obj | "$GREP" "??_7.*@@6B@" | "$AWK" '{print $7}' | "$SORT" | "$UNIQ" > vm2.def
+else
+# Can't use pipes when calling cl.exe or link.exe from IDE. Using transit file vm3.def
+$DUMPBIN /OUT:vm3.def /symbols *.obj
+"$CAT" vm3.def | "$GREP" "??_7.*@@6B@" | "$AWK" '{print $7}' | "$SORT" | "$UNIQ" > vm2.def
+"$RM" -f vm3.def
+fi
+
"$CAT" vm1.def vm2.def > vm.def
"$RM" -f vm1.def vm2.def
--- a/hotspot/make/windows/create.bat Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/make/windows/create.bat Wed Jul 05 16:49:40 2017 +0200
@@ -72,12 +72,20 @@
for /F %%i in ('sh %HotSpotWorkSpace%/make/windows/get_msc_ver.sh') do set %%i
echo **************************************************************
+set ProjectFile=vm.vcproj
if "%MSC_VER%" == "1200" (
set ProjectFile=vm.dsp
echo Will generate VC6 project {unsupported}
) else (
-set ProjectFile=vm.vcproj
-echo Will generate VC7 project
+if "%MSC_VER%" == "1400" (
+echo Will generate VC8 {Visual Studio 2005}
+) else (
+if "%MSC_VER%" == "1500" (
+echo Will generate VC9 {Visual Studio 2008}
+) else (
+echo Will generate VC7 project {Visual Studio 2003 .NET}
+)
+)
)
echo %ProjectFile%
echo **************************************************************
--- a/hotspot/make/windows/get_msc_ver.sh Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/make/windows/get_msc_ver.sh Wed Jul 05 16:49:40 2017 +0200
@@ -29,6 +29,7 @@
# cl version 13.10.3077 returns "MSC_VER=1310"
# cl version 14.00.30701 returns "MSC_VER=1399" (OLD_MSSDK version)
# cl version 14.00.40310.41 returns "MSC_VER=1400"
+# cl version 15.00.21022.8 returns "MSC_VER=1500"
# Note that we currently do not have a way to set HotSpotMksHome in
# the batch build, but so far this has not seemed to be a problem. The
--- a/hotspot/make/windows/makefiles/adlc.make Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/make/windows/makefiles/adlc.make Wed Jul 05 16:49:40 2017 +0200
@@ -46,6 +46,7 @@
ADLCFLAGS=-q -T -U_LP64
!endif
+CPP_FLAGS=$(CPP_FLAGS) /D _CRT_SECURE_NO_WARNINGS /D _CRT_SECURE_NO_DEPRECATE
CPP_INCLUDE_DIRS=\
/I "..\generated" \
--- a/hotspot/make/windows/makefiles/compile.make Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/make/windows/makefiles/compile.make Wed Jul 05 16:49:40 2017 +0200
@@ -170,10 +170,6 @@
# Manifest Tool - used in VS2005 and later to adjust manifests stored
# as resources inside build artifacts.
MT=mt.exe
-!if "$(BUILDARCH)" == "i486"
-# VS2005 on x86 restricts the use of certain libc functions without this
-CPP_FLAGS=$(CPP_FLAGS) /D _CRT_SECURE_NO_DEPRECATE
-!endif
!endif
!if "$(COMPILER_NAME)" == "VS2008"
@@ -185,10 +181,6 @@
# Manifest Tool - used in VS2005 and later to adjust manifests stored
# as resources inside build artifacts.
MT=mt.exe
-!if "$(BUILDARCH)" == "i486"
-# VS2005 on x86 restricts the use of certain libc functions without this
-CPP_FLAGS=$(CPP_FLAGS) /D _CRT_SECURE_NO_DEPRECATE
-!endif
!endif
# Compile for space above time.
--- a/hotspot/make/windows/makefiles/makedeps.make Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/make/windows/makefiles/makedeps.make Wed Jul 05 16:49:40 2017 +0200
@@ -48,6 +48,8 @@
$(WorkSpace)\src\share\tools\MakeDeps\WinGammaPlatform.java \
$(WorkSpace)\src\share\tools\MakeDeps\WinGammaPlatformVC6.java \
$(WorkSpace)\src\share\tools\MakeDeps\WinGammaPlatformVC7.java \
+ $(WorkSpace)\src\share\tools\MakeDeps\WinGammaPlatformVC8.java \
+ $(WorkSpace)\src\share\tools\MakeDeps\WinGammaPlatformVC9.java \
$(WorkSpace)\src\share\tools\MakeDeps\Util.java \
$(WorkSpace)\src\share\tools\MakeDeps\BuildConfig.java \
$(WorkSpace)\src\share\tools\MakeDeps\ArgsParser.java
@@ -121,7 +123,7 @@
-additionalFile includeDB_gc_shared \
-additionalFile includeDB_gc_serial \
-additionalGeneratedFile $(HOTSPOTBUILDSPACE)\%f\%b vm.def \
- -prelink "" "Generating vm.def..." "cd $(HOTSPOTBUILDSPACE)\%f\%b $(HOTSPOTMKSHOME)\sh $(HOTSPOTWORKSPACE)\make\windows\build_vm_def.sh" \
+ -prelink "" "Generating vm.def..." "cd $(HOTSPOTBUILDSPACE)\%f\%b set HOTSPOTMKSHOME=$(HOTSPOTMKSHOME) $(HOTSPOTMKSHOME)\sh $(HOTSPOTWORKSPACE)\make\windows\build_vm_def.sh $(LINK_VER)" \
$(MakeDepsIncludesPRIVATE)
# Add in build-specific options
--- a/hotspot/make/windows/makefiles/rules.make Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/make/windows/makefiles/rules.make Wed Jul 05 16:49:40 2017 +0200
@@ -42,10 +42,23 @@
BOOT_JAVA_HOME=
!endif
+ProjectFile=vm.vcproj
+
!if "$(MSC_VER)" == "1200"
+
VcVersion=VC6
ProjectFile=vm.dsp
+
+!elseif "$(MSC_VER)" == "1400"
+
+VcVersion=VC8
+
+!elseif "$(MSC_VER)" == "1500"
+
+VcVersion=VC9
+
!else
+
VcVersion=VC7
-ProjectFile=vm.vcproj
+
!endif
--- a/hotspot/make/windows/makefiles/sa.make Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/make/windows/makefiles/sa.make Wed Jul 05 16:49:40 2017 +0200
@@ -89,9 +89,11 @@
SA_CFLAGS = /nologo $(MS_RUNTIME_OPTION) /W3 $(GX_OPTION) /Od /D "WIN32" /D "WIN64" /D "_WINDOWS" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
!elseif "$(BUILDARCH)" == "amd64"
SA_CFLAGS = /nologo $(MS_RUNTIME_OPTION) /W3 $(GX_OPTION) /Od /D "WIN32" /D "WIN64" /D "_WINDOWS" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
+!if "$(COMPILER_NAME)" == "VS2005"
# On amd64, VS2005 compiler requires bufferoverflowU.lib on the link command line,
# otherwise we get missing __security_check_cookie externals at link time.
SA_LINK_FLAGS = bufferoverflowU.lib
+!endif
!else
SA_CFLAGS = /nologo $(MS_RUNTIME_OPTION) /W3 /Gm $(GX_OPTION) /ZI /Od /D "WIN32" /D "_WINDOWS" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /GZ /c
!endif
--- a/hotspot/make/windows/makefiles/sanity.make Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/make/windows/makefiles/sanity.make Wed Jul 05 16:49:40 2017 +0200
@@ -27,9 +27,9 @@
all: checkCL checkLink
checkCL:
- @ if "$(MSC_VER)" NEQ "1310" if "$(MSC_VER)" NEQ "1399" if "$(MSC_VER)" NEQ "1400" \
+ @ if "$(MSC_VER)" NEQ "1310" if "$(MSC_VER)" NEQ "1399" if "$(MSC_VER)" NEQ "1400" if "$(MSC_VER)" NEQ "1500" \
echo *** WARNING *** unrecognized cl.exe version $(MSC_VER) ($(RAW_MSC_VER)). Use FORCE_MSC_VER to override automatic detection.
checkLink:
- @ if "$(LINK_VER)" NEQ "710" if "$(LINK_VER)" NEQ "800" \
+ @ if "$(LINK_VER)" NEQ "710" if "$(LINK_VER)" NEQ "800" if "$(LINK_VER)" NEQ "900" \
echo *** WARNING *** unrecognized link.exe version $(LINK_VER) ($(RAW_LINK_VER)). Use FORCE_LINK_VER to override automatic detection.
--- a/hotspot/src/cpu/sparc/vm/assembler_sparc.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/sparc/vm/assembler_sparc.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -2767,6 +2767,268 @@
}
+void MacroAssembler::check_klass_subtype(Register sub_klass,
+ Register super_klass,
+ Register temp_reg,
+ Register temp2_reg,
+ Label& L_success) {
+ Label L_failure, L_pop_to_failure;
+ check_klass_subtype_fast_path(sub_klass, super_klass,
+ temp_reg, temp2_reg,
+ &L_success, &L_failure, NULL);
+ Register sub_2 = sub_klass;
+ Register sup_2 = super_klass;
+ if (!sub_2->is_global()) sub_2 = L0;
+ if (!sup_2->is_global()) sup_2 = L1;
+
+ save_frame_and_mov(0, sub_klass, sub_2, super_klass, sup_2);
+ check_klass_subtype_slow_path(sub_2, sup_2,
+ L2, L3, L4, L5,
+ NULL, &L_pop_to_failure);
+
+ // on success:
+ restore();
+ ba(false, L_success);
+ delayed()->nop();
+
+ // on failure:
+ bind(L_pop_to_failure);
+ restore();
+ bind(L_failure);
+}
+
+
+void MacroAssembler::check_klass_subtype_fast_path(Register sub_klass,
+ Register super_klass,
+ Register temp_reg,
+ Register temp2_reg,
+ Label* L_success,
+ Label* L_failure,
+ Label* L_slow_path,
+ RegisterConstant super_check_offset,
+ Register instanceof_hack) {
+ int sc_offset = (klassOopDesc::header_size() * HeapWordSize +
+ Klass::secondary_super_cache_offset_in_bytes());
+ int sco_offset = (klassOopDesc::header_size() * HeapWordSize +
+ Klass::super_check_offset_offset_in_bytes());
+
+ bool must_load_sco = (super_check_offset.constant_or_zero() == -1);
+ bool need_slow_path = (must_load_sco ||
+ super_check_offset.constant_or_zero() == sco_offset);
+
+ assert_different_registers(sub_klass, super_klass, temp_reg);
+ if (super_check_offset.is_register()) {
+ assert_different_registers(sub_klass, super_klass,
+ super_check_offset.as_register());
+ } else if (must_load_sco) {
+ assert(temp2_reg != noreg, "supply either a temp or a register offset");
+ }
+
+ Label L_fallthrough;
+ int label_nulls = 0;
+ if (L_success == NULL) { L_success = &L_fallthrough; label_nulls++; }
+ if (L_failure == NULL) { L_failure = &L_fallthrough; label_nulls++; }
+ if (L_slow_path == NULL) { L_slow_path = &L_fallthrough; label_nulls++; }
+ assert(label_nulls <= 1 || instanceof_hack != noreg ||
+ (L_slow_path == &L_fallthrough && label_nulls <= 2 && !need_slow_path),
+ "at most one NULL in the batch, usually");
+
+ // Support for the instanceof hack, which uses delay slots to
+ // set a destination register to zero or one.
+ bool do_bool_sets = (instanceof_hack != noreg);
+#define BOOL_SET(bool_value) \
+ if (do_bool_sets && bool_value >= 0) \
+ set(bool_value, instanceof_hack)
+#define DELAYED_BOOL_SET(bool_value) \
+ if (do_bool_sets && bool_value >= 0) \
+ delayed()->set(bool_value, instanceof_hack); \
+ else delayed()->nop()
+ // Hacked ba(), which may only be used just before L_fallthrough.
+#define FINAL_JUMP(label, bool_value) \
+ if (&(label) == &L_fallthrough) { \
+ BOOL_SET(bool_value); \
+ } else { \
+ ba((do_bool_sets && bool_value >= 0), label); \
+ DELAYED_BOOL_SET(bool_value); \
+ }
+
+ // If the pointers are equal, we are done (e.g., String[] elements).
+ // This self-check enables sharing of secondary supertype arrays among
+ // non-primary types such as array-of-interface. Otherwise, each such
+ // type would need its own customized SSA.
+ // We move this check to the front of the fast path because many
+ // type checks are in fact trivially successful in this manner,
+ // so we get a nicely predicted branch right at the start of the check.
+ cmp(super_klass, sub_klass);
+ brx(Assembler::equal, do_bool_sets, Assembler::pn, *L_success);
+ DELAYED_BOOL_SET(1);
+
+ // Check the supertype display:
+ if (must_load_sco) {
+ // The super check offset is always positive...
+ lduw(super_klass, sco_offset, temp2_reg);
+ super_check_offset = RegisterConstant(temp2_reg);
+ }
+ ld_ptr(sub_klass, super_check_offset, temp_reg);
+ cmp(super_klass, temp_reg);
+
+ // This check has worked decisively for primary supers.
+ // Secondary supers are sought in the super_cache ('super_cache_addr').
+ // (Secondary supers are interfaces and very deeply nested subtypes.)
+ // This works in the same check above because of a tricky aliasing
+ // between the super_cache and the primary super display elements.
+ // (The 'super_check_addr' can address either, as the case requires.)
+ // Note that the cache is updated below if it does not help us find
+ // what we need immediately.
+ // So if it was a primary super, we can just fail immediately.
+ // Otherwise, it's the slow path for us (no success at this point).
+
+ if (super_check_offset.is_register()) {
+ brx(Assembler::equal, do_bool_sets, Assembler::pn, *L_success);
+ delayed(); if (do_bool_sets) BOOL_SET(1);
+ // if !do_bool_sets, sneak the next cmp into the delay slot:
+ cmp(super_check_offset.as_register(), sc_offset);
+
+ if (L_failure == &L_fallthrough) {
+ brx(Assembler::equal, do_bool_sets, Assembler::pt, *L_slow_path);
+ delayed()->nop();
+ BOOL_SET(0); // fallthrough on failure
+ } else {
+ brx(Assembler::notEqual, do_bool_sets, Assembler::pn, *L_failure);
+ DELAYED_BOOL_SET(0);
+ FINAL_JUMP(*L_slow_path, -1); // -1 => vanilla delay slot
+ }
+ } else if (super_check_offset.as_constant() == sc_offset) {
+ // Need a slow path; fast failure is impossible.
+ if (L_slow_path == &L_fallthrough) {
+ brx(Assembler::equal, do_bool_sets, Assembler::pt, *L_success);
+ DELAYED_BOOL_SET(1);
+ } else {
+ brx(Assembler::notEqual, false, Assembler::pn, *L_slow_path);
+ delayed()->nop();
+ FINAL_JUMP(*L_success, 1);
+ }
+ } else {
+ // No slow path; it's a fast decision.
+ if (L_failure == &L_fallthrough) {
+ brx(Assembler::equal, do_bool_sets, Assembler::pt, *L_success);
+ DELAYED_BOOL_SET(1);
+ BOOL_SET(0);
+ } else {
+ brx(Assembler::notEqual, do_bool_sets, Assembler::pn, *L_failure);
+ DELAYED_BOOL_SET(0);
+ FINAL_JUMP(*L_success, 1);
+ }
+ }
+
+ bind(L_fallthrough);
+
+#undef final_jump
+#undef bool_set
+#undef DELAYED_BOOL_SET
+#undef final_jump
+}
+
+
+void MacroAssembler::check_klass_subtype_slow_path(Register sub_klass,
+ Register super_klass,
+ Register count_temp,
+ Register scan_temp,
+ Register scratch_reg,
+ Register coop_reg,
+ Label* L_success,
+ Label* L_failure) {
+ assert_different_registers(sub_klass, super_klass,
+ count_temp, scan_temp, scratch_reg, coop_reg);
+
+ Label L_fallthrough, L_loop;
+ int label_nulls = 0;
+ if (L_success == NULL) { L_success = &L_fallthrough; label_nulls++; }
+ if (L_failure == NULL) { L_failure = &L_fallthrough; label_nulls++; }
+ assert(label_nulls <= 1, "at most one NULL in the batch");
+
+ // a couple of useful fields in sub_klass:
+ int ss_offset = (klassOopDesc::header_size() * HeapWordSize +
+ Klass::secondary_supers_offset_in_bytes());
+ int sc_offset = (klassOopDesc::header_size() * HeapWordSize +
+ Klass::secondary_super_cache_offset_in_bytes());
+
+ // Do a linear scan of the secondary super-klass chain.
+ // This code is rarely used, so simplicity is a virtue here.
+
+#ifndef PRODUCT
+ int* pst_counter = &SharedRuntime::_partial_subtype_ctr;
+ inc_counter((address) pst_counter, count_temp, scan_temp);
+#endif
+
+ // We will consult the secondary-super array.
+ ld_ptr(sub_klass, ss_offset, scan_temp);
+
+ // Compress superclass if necessary.
+ Register search_key = super_klass;
+ bool decode_super_klass = false;
+ if (UseCompressedOops) {
+ if (coop_reg != noreg) {
+ encode_heap_oop_not_null(super_klass, coop_reg);
+ search_key = coop_reg;
+ } else {
+ encode_heap_oop_not_null(super_klass);
+ decode_super_klass = true; // scarce temps!
+ }
+ // The superclass is never null; it would be a basic system error if a null
+ // pointer were to sneak in here. Note that we have already loaded the
+ // Klass::super_check_offset from the super_klass in the fast path,
+ // so if there is a null in that register, we are already in the afterlife.
+ }
+
+ // Load the array length. (Positive movl does right thing on LP64.)
+ lduw(scan_temp, arrayOopDesc::length_offset_in_bytes(), count_temp);
+
+ // Check for empty secondary super list
+ tst(count_temp);
+
+ // Top of search loop
+ bind(L_loop);
+ br(Assembler::equal, false, Assembler::pn, *L_failure);
+ delayed()->add(scan_temp, heapOopSize, scan_temp);
+ assert(heapOopSize != 0, "heapOopSize should be initialized");
+
+ // Skip the array header in all array accesses.
+ int elem_offset = arrayOopDesc::base_offset_in_bytes(T_OBJECT);
+ elem_offset -= heapOopSize; // the scan pointer was pre-incremented also
+
+ // Load next super to check
+ if (UseCompressedOops) {
+ // Don't use load_heap_oop; we don't want to decode the element.
+ lduw( scan_temp, elem_offset, scratch_reg );
+ } else {
+ ld_ptr( scan_temp, elem_offset, scratch_reg );
+ }
+
+ // Look for Rsuper_klass on Rsub_klass's secondary super-class-overflow list
+ cmp(scratch_reg, search_key);
+
+ // A miss means we are NOT a subtype and need to keep looping
+ brx(Assembler::notEqual, false, Assembler::pn, L_loop);
+ delayed()->deccc(count_temp); // decrement trip counter in delay slot
+
+ // Falling out the bottom means we found a hit; we ARE a subtype
+ if (decode_super_klass) decode_heap_oop(super_klass);
+
+ // Success. Cache the super we found and proceed in triumph.
+ st_ptr(super_klass, sub_klass, sc_offset);
+
+ if (L_success != &L_fallthrough) {
+ ba(false, *L_success);
+ delayed()->nop();
+ }
+
+ bind(L_fallthrough);
+}
+
+
+
+
void MacroAssembler::biased_locking_enter(Register obj_reg, Register mark_reg,
Register temp_reg,
Label& done, Label* slow_case,
@@ -4316,7 +4578,13 @@
void MacroAssembler::encode_heap_oop(Register src, Register dst) {
assert (UseCompressedOops, "must be compressed");
+ assert (Universe::heap() != NULL, "java heap should be initialized");
+ assert (LogMinObjAlignmentInBytes == Universe::narrow_oop_shift(), "decode alg wrong");
verify_oop(src);
+ if (Universe::narrow_oop_base() == NULL) {
+ srlx(src, LogMinObjAlignmentInBytes, dst);
+ return;
+ }
Label done;
if (src == dst) {
// optimize for frequent case src == dst
@@ -4338,26 +4606,39 @@
void MacroAssembler::encode_heap_oop_not_null(Register r) {
assert (UseCompressedOops, "must be compressed");
+ assert (Universe::heap() != NULL, "java heap should be initialized");
+ assert (LogMinObjAlignmentInBytes == Universe::narrow_oop_shift(), "decode alg wrong");
verify_oop(r);
- sub(r, G6_heapbase, r);
+ if (Universe::narrow_oop_base() != NULL)
+ sub(r, G6_heapbase, r);
srlx(r, LogMinObjAlignmentInBytes, r);
}
void MacroAssembler::encode_heap_oop_not_null(Register src, Register dst) {
assert (UseCompressedOops, "must be compressed");
+ assert (Universe::heap() != NULL, "java heap should be initialized");
+ assert (LogMinObjAlignmentInBytes == Universe::narrow_oop_shift(), "decode alg wrong");
verify_oop(src);
- sub(src, G6_heapbase, dst);
- srlx(dst, LogMinObjAlignmentInBytes, dst);
+ if (Universe::narrow_oop_base() == NULL) {
+ srlx(src, LogMinObjAlignmentInBytes, dst);
+ } else {
+ sub(src, G6_heapbase, dst);
+ srlx(dst, LogMinObjAlignmentInBytes, dst);
+ }
}
// Same algorithm as oops.inline.hpp decode_heap_oop.
void MacroAssembler::decode_heap_oop(Register src, Register dst) {
assert (UseCompressedOops, "must be compressed");
- Label done;
+ assert (Universe::heap() != NULL, "java heap should be initialized");
+ assert (LogMinObjAlignmentInBytes == Universe::narrow_oop_shift(), "decode alg wrong");
sllx(src, LogMinObjAlignmentInBytes, dst);
- bpr(rc_nz, true, Assembler::pt, dst, done);
- delayed() -> add(dst, G6_heapbase, dst); // annuled if not taken
- bind(done);
+ if (Universe::narrow_oop_base() != NULL) {
+ Label done;
+ bpr(rc_nz, true, Assembler::pt, dst, done);
+ delayed() -> add(dst, G6_heapbase, dst); // annuled if not taken
+ bind(done);
+ }
verify_oop(dst);
}
@@ -4366,8 +4647,11 @@
// pd_code_size_limit.
// Also do not verify_oop as this is called by verify_oop.
assert (UseCompressedOops, "must be compressed");
+ assert (Universe::heap() != NULL, "java heap should be initialized");
+ assert (LogMinObjAlignmentInBytes == Universe::narrow_oop_shift(), "decode alg wrong");
sllx(r, LogMinObjAlignmentInBytes, r);
- add(r, G6_heapbase, r);
+ if (Universe::narrow_oop_base() != NULL)
+ add(r, G6_heapbase, r);
}
void MacroAssembler::decode_heap_oop_not_null(Register src, Register dst) {
@@ -4375,14 +4659,17 @@
// pd_code_size_limit.
// Also do not verify_oop as this is called by verify_oop.
assert (UseCompressedOops, "must be compressed");
+ assert (Universe::heap() != NULL, "java heap should be initialized");
+ assert (LogMinObjAlignmentInBytes == Universe::narrow_oop_shift(), "decode alg wrong");
sllx(src, LogMinObjAlignmentInBytes, dst);
- add(dst, G6_heapbase, dst);
+ if (Universe::narrow_oop_base() != NULL)
+ add(dst, G6_heapbase, dst);
}
void MacroAssembler::reinit_heapbase() {
if (UseCompressedOops) {
// call indirectly to solve generation ordering problem
- Address base(G6_heapbase, (address)Universe::heap_base_addr());
+ Address base(G6_heapbase, (address)Universe::narrow_oop_base_addr());
load_ptr_contents(base, G6_heapbase);
}
}
--- a/hotspot/src/cpu/sparc/vm/assembler_sparc.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/sparc/vm/assembler_sparc.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -2327,6 +2327,46 @@
Register temp_reg, Register temp2_reg,
Label& no_such_interface);
+ // Test sub_klass against super_klass, with fast and slow paths.
+
+ // The fast path produces a tri-state answer: yes / no / maybe-slow.
+ // One of the three labels can be NULL, meaning take the fall-through.
+ // If super_check_offset is -1, the value is loaded up from super_klass.
+ // No registers are killed, except temp_reg and temp2_reg.
+ // If super_check_offset is not -1, temp2_reg is not used and can be noreg.
+ void check_klass_subtype_fast_path(Register sub_klass,
+ Register super_klass,
+ Register temp_reg,
+ Register temp2_reg,
+ Label* L_success,
+ Label* L_failure,
+ Label* L_slow_path,
+ RegisterConstant super_check_offset = RegisterConstant(-1),
+ Register instanceof_hack = noreg);
+
+ // The rest of the type check; must be wired to a corresponding fast path.
+ // It does not repeat the fast path logic, so don't use it standalone.
+ // The temp_reg can be noreg, if no temps are available.
+ // It can also be sub_klass or super_klass, meaning it's OK to kill that one.
+ // Updates the sub's secondary super cache as necessary.
+ void check_klass_subtype_slow_path(Register sub_klass,
+ Register super_klass,
+ Register temp_reg,
+ Register temp2_reg,
+ Register temp3_reg,
+ Register temp4_reg,
+ Label* L_success,
+ Label* L_failure);
+
+ // Simplified, combined version, good for typical uses.
+ // Falls through on failure.
+ void check_klass_subtype(Register sub_klass,
+ Register super_klass,
+ Register temp_reg,
+ Register temp2_reg,
+ Label& L_success);
+
+
// Stack overflow checking
// Note: this clobbers G3_scratch
--- a/hotspot/src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -2393,23 +2393,11 @@
// get instance klass
load(k_RInfo, objArrayKlass::element_klass_offset_in_bytes() + sizeof(oopDesc), k_RInfo, T_OBJECT, NULL);
- // get super_check_offset
- load(k_RInfo, sizeof(oopDesc) + Klass::super_check_offset_offset_in_bytes(), Rtmp1, T_INT, NULL);
- // See if we get an immediate positive hit
- __ ld_ptr(klass_RInfo, Rtmp1, FrameMap::O7_oop_opr->as_register());
- __ cmp(k_RInfo, O7);
- __ br(Assembler::equal, false, Assembler::pn, done);
- __ delayed()->nop();
- // check for immediate negative hit
- __ cmp(Rtmp1, sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes());
- __ br(Assembler::notEqual, false, Assembler::pn, *stub->entry());
- __ delayed()->nop();
- // check for self
- __ cmp(klass_RInfo, k_RInfo);
- __ br(Assembler::equal, false, Assembler::pn, done);
- __ delayed()->nop();
-
- // assert(sub.is_same(FrameMap::G3_RInfo) && super.is_same(FrameMap::G1_RInfo), "incorrect call setup");
+ // perform the fast part of the checking logic
+ __ check_klass_subtype_fast_path(klass_RInfo, k_RInfo, Rtmp1, O7, &done, stub->entry(), NULL);
+
+ // call out-of-line instance of __ check_klass_subtype_slow_path(...):
+ assert(klass_RInfo == G3 && k_RInfo == G1, "incorrect call setup");
__ call(Runtime1::entry_for(Runtime1::slow_subtype_check_id), relocInfo::runtime_call_type);
__ delayed()->nop();
__ cmp(G3, 0);
@@ -2493,58 +2481,30 @@
__ delayed()->nop();
__ bind(done);
} else {
+ bool need_slow_path = true;
if (k->is_loaded()) {
- load(klass_RInfo, k->super_check_offset(), Rtmp1, T_OBJECT, NULL);
-
- if (sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes() != k->super_check_offset()) {
- // See if we get an immediate positive hit
- __ cmp(Rtmp1, k_RInfo );
- __ br(Assembler::notEqual, false, Assembler::pn, *stub->entry());
- __ delayed()->nop();
- } else {
- // See if we get an immediate positive hit
- assert_different_registers(Rtmp1, k_RInfo, klass_RInfo);
- __ cmp(Rtmp1, k_RInfo );
- __ br(Assembler::equal, false, Assembler::pn, done);
- // check for self
- __ delayed()->cmp(klass_RInfo, k_RInfo);
- __ br(Assembler::equal, false, Assembler::pn, done);
- __ delayed()->nop();
-
- // assert(sub.is_same(FrameMap::G3_RInfo) && super.is_same(FrameMap::G1_RInfo), "incorrect call setup");
- __ call(Runtime1::entry_for(Runtime1::slow_subtype_check_id), relocInfo::runtime_call_type);
- __ delayed()->nop();
- __ cmp(G3, 0);
- __ br(Assembler::equal, false, Assembler::pn, *stub->entry());
- __ delayed()->nop();
- }
- __ bind(done);
+ if (k->super_check_offset() != sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes())
+ need_slow_path = false;
+ // perform the fast part of the checking logic
+ __ check_klass_subtype_fast_path(klass_RInfo, k_RInfo, Rtmp1, noreg,
+ (need_slow_path ? &done : NULL),
+ stub->entry(), NULL,
+ RegisterConstant(k->super_check_offset()));
} else {
- assert_different_registers(Rtmp1, klass_RInfo, k_RInfo);
-
- load(k_RInfo, sizeof(oopDesc) + Klass::super_check_offset_offset_in_bytes(), Rtmp1, T_INT, NULL);
- // See if we get an immediate positive hit
- load(klass_RInfo, Rtmp1, FrameMap::O7_oop_opr, T_OBJECT);
- __ cmp(k_RInfo, O7);
- __ br(Assembler::equal, false, Assembler::pn, done);
- __ delayed()->nop();
- // check for immediate negative hit
- __ cmp(Rtmp1, sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes());
- __ br(Assembler::notEqual, false, Assembler::pn, *stub->entry());
- // check for self
- __ delayed()->cmp(klass_RInfo, k_RInfo);
- __ br(Assembler::equal, false, Assembler::pn, done);
- __ delayed()->nop();
-
- // assert(sub.is_same(FrameMap::G3_RInfo) && super.is_same(FrameMap::G1_RInfo), "incorrect call setup");
+ // perform the fast part of the checking logic
+ __ check_klass_subtype_fast_path(klass_RInfo, k_RInfo, Rtmp1, O7,
+ &done, stub->entry(), NULL);
+ }
+ if (need_slow_path) {
+ // call out-of-line instance of __ check_klass_subtype_slow_path(...):
+ assert(klass_RInfo == G3 && k_RInfo == G1, "incorrect call setup");
__ call(Runtime1::entry_for(Runtime1::slow_subtype_check_id), relocInfo::runtime_call_type);
__ delayed()->nop();
__ cmp(G3, 0);
__ br(Assembler::equal, false, Assembler::pn, *stub->entry());
__ delayed()->nop();
- __ bind(done);
}
-
+ __ bind(done);
}
__ mov(obj, dst);
} else if (code == lir_instanceof) {
@@ -2582,58 +2542,32 @@
__ set(0, dst);
__ bind(done);
} else {
+ bool need_slow_path = true;
if (k->is_loaded()) {
- assert_different_registers(Rtmp1, klass_RInfo, k_RInfo);
- load(klass_RInfo, k->super_check_offset(), Rtmp1, T_OBJECT, NULL);
-
- if (sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes() != k->super_check_offset()) {
- // See if we get an immediate positive hit
- __ cmp(Rtmp1, k_RInfo );
- __ br(Assembler::equal, true, Assembler::pt, done);
- __ delayed()->set(1, dst);
- __ set(0, dst);
- __ bind(done);
- } else {
- // See if we get an immediate positive hit
- assert_different_registers(Rtmp1, k_RInfo, klass_RInfo);
- __ cmp(Rtmp1, k_RInfo );
- __ br(Assembler::equal, true, Assembler::pt, done);
- __ delayed()->set(1, dst);
- // check for self
- __ cmp(klass_RInfo, k_RInfo);
- __ br(Assembler::equal, true, Assembler::pt, done);
- __ delayed()->set(1, dst);
-
- // assert(sub.is_same(FrameMap::G3_RInfo) && super.is_same(FrameMap::G1_RInfo), "incorrect call setup");
- __ call(Runtime1::entry_for(Runtime1::slow_subtype_check_id), relocInfo::runtime_call_type);
- __ delayed()->nop();
- __ mov(G3, dst);
- __ bind(done);
- }
+ if (k->super_check_offset() != sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes())
+ need_slow_path = false;
+ // perform the fast part of the checking logic
+ __ check_klass_subtype_fast_path(klass_RInfo, k_RInfo, O7, noreg,
+ (need_slow_path ? &done : NULL),
+ (need_slow_path ? &done : NULL), NULL,
+ RegisterConstant(k->super_check_offset()),
+ dst);
} else {
assert(dst != klass_RInfo && dst != k_RInfo, "need 3 registers");
-
- load(k_RInfo, sizeof(oopDesc) + Klass::super_check_offset_offset_in_bytes(), dst, T_INT, NULL);
- // See if we get an immediate positive hit
- load(klass_RInfo, dst, FrameMap::O7_oop_opr, T_OBJECT);
- __ cmp(k_RInfo, O7);
- __ br(Assembler::equal, true, Assembler::pt, done);
- __ delayed()->set(1, dst);
- // check for immediate negative hit
- __ cmp(dst, sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes());
- __ br(Assembler::notEqual, true, Assembler::pt, done);
- __ delayed()->set(0, dst);
- // check for self
- __ cmp(klass_RInfo, k_RInfo);
- __ br(Assembler::equal, true, Assembler::pt, done);
- __ delayed()->set(1, dst);
-
- // assert(sub.is_same(FrameMap::G3_RInfo) && super.is_same(FrameMap::G1_RInfo), "incorrect call setup");
+ // perform the fast part of the checking logic
+ __ check_klass_subtype_fast_path(klass_RInfo, k_RInfo, O7, dst,
+ &done, &done, NULL,
+ RegisterConstant(-1),
+ dst);
+ }
+ if (need_slow_path) {
+ // call out-of-line instance of __ check_klass_subtype_slow_path(...):
+ assert(klass_RInfo == G3 && k_RInfo == G1, "incorrect call setup");
__ call(Runtime1::entry_for(Runtime1::slow_subtype_check_id), relocInfo::runtime_call_type);
__ delayed()->nop();
__ mov(G3, dst);
- __ bind(done);
}
+ __ bind(done);
}
} else {
ShouldNotReachHere();
--- a/hotspot/src/cpu/sparc/vm/c1_Runtime1_sparc.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/sparc/vm/c1_Runtime1_sparc.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -714,38 +714,19 @@
// sub : G3, argument, destroyed
// super: G1, argument, not changed
// raddr: O7, blown by call
- Label loop, miss;
+ Label miss;
__ save_frame(0); // Blow no registers!
- __ ld_ptr( G3, sizeof(oopDesc) + Klass::secondary_supers_offset_in_bytes(), L3 );
- __ lduw(L3,arrayOopDesc::length_offset_in_bytes(),L0); // length in l0
- __ add(L3,arrayOopDesc::base_offset_in_bytes(T_OBJECT),L1); // ptr into array
- __ clr(L4); // Index
- // Load a little early; will load 1 off the end of the array.
- // Ok for now; revisit if we have other uses of this routine.
- __ ld_ptr(L1,0,L2); // Will load a little early
-
- // The scan loop
- __ bind(loop);
- __ add(L1,wordSize,L1); // Bump by OOP size
- __ cmp(L4,L0);
- __ br(Assembler::equal,false,Assembler::pn,miss);
- __ delayed()->inc(L4); // Bump index
- __ subcc(L2,G1,L3); // Check for match; zero in L3 for a hit
- __ brx( Assembler::notEqual, false, Assembler::pt, loop );
- __ delayed()->ld_ptr(L1,0,L2); // Will load a little early
-
- // Got a hit; report success; set cache
- __ st_ptr( G1, G3, sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes() );
+ __ check_klass_subtype_slow_path(G3, G1, L0, L1, L2, L4, NULL, &miss);
__ mov(1, G3);
- __ ret(); // Result in G5 is ok; flags set
+ __ ret(); // Result in G5 is 'true'
__ delayed()->restore(); // free copy or add can go here
__ bind(miss);
__ mov(0, G3);
- __ ret(); // Result in G5 is ok; flags set
+ __ ret(); // Result in G5 is 'false'
__ delayed()->restore(); // free copy or add can go here
}
--- a/hotspot/src/cpu/sparc/vm/interp_masm_sparc.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/sparc/vm/interp_masm_sparc.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -866,65 +866,18 @@
Register Rtmp2,
Register Rtmp3,
Label &ok_is_subtype ) {
- Label not_subtype, loop;
+ Label not_subtype;
// Profile the not-null value's klass.
profile_typecheck(Rsub_klass, Rtmp1);
- // Load the super-klass's check offset into Rtmp1
- ld( Rsuper_klass, sizeof(oopDesc) + Klass::super_check_offset_offset_in_bytes(), Rtmp1 );
- // Load from the sub-klass's super-class display list, or a 1-word cache of
- // the secondary superclass list, or a failing value with a sentinel offset
- // if the super-klass is an interface or exceptionally deep in the Java
- // hierarchy and we have to scan the secondary superclass list the hard way.
- ld_ptr( Rsub_klass, Rtmp1, Rtmp2 );
- // See if we get an immediate positive hit
- cmp( Rtmp2, Rsuper_klass );
- brx( Assembler::equal, false, Assembler::pt, ok_is_subtype );
- // In the delay slot, check for immediate negative hit
- delayed()->cmp( Rtmp1, sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes() );
- br( Assembler::notEqual, false, Assembler::pt, not_subtype );
- // In the delay slot, check for self
- delayed()->cmp( Rsub_klass, Rsuper_klass );
- brx( Assembler::equal, false, Assembler::pt, ok_is_subtype );
-
- // Now do a linear scan of the secondary super-klass chain.
- delayed()->ld_ptr( Rsub_klass, sizeof(oopDesc) + Klass::secondary_supers_offset_in_bytes(), Rtmp2 );
-
- // compress superclass
- if (UseCompressedOops) encode_heap_oop(Rsuper_klass);
-
- // Rtmp2 holds the objArrayOop of secondary supers.
- ld( Rtmp2, arrayOopDesc::length_offset_in_bytes(), Rtmp1 );// Load the array length
- // Check for empty secondary super list
- tst(Rtmp1);
-
- // Top of search loop
- bind( loop );
- br( Assembler::equal, false, Assembler::pn, not_subtype );
- delayed()->nop();
-
- // load next super to check
- if (UseCompressedOops) {
- lduw( Rtmp2, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Rtmp3);
- // Bump array pointer forward one oop
- add( Rtmp2, 4, Rtmp2 );
- } else {
- ld_ptr( Rtmp2, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Rtmp3);
- // Bump array pointer forward one oop
- add( Rtmp2, wordSize, Rtmp2);
- }
- // Look for Rsuper_klass on Rsub_klass's secondary super-class-overflow list
- cmp( Rtmp3, Rsuper_klass );
- // A miss means we are NOT a subtype and need to keep looping
- brx( Assembler::notEqual, false, Assembler::pt, loop );
- delayed()->deccc( Rtmp1 ); // dec trip counter in delay slot
- // Falling out the bottom means we found a hit; we ARE a subtype
- if (UseCompressedOops) decode_heap_oop(Rsuper_klass);
- br( Assembler::always, false, Assembler::pt, ok_is_subtype );
- // Update the cache
- delayed()->st_ptr( Rsuper_klass, Rsub_klass,
- sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes() );
+ check_klass_subtype_fast_path(Rsub_klass, Rsuper_klass,
+ Rtmp1, Rtmp2,
+ &ok_is_subtype, ¬_subtype, NULL);
+
+ check_klass_subtype_slow_path(Rsub_klass, Rsuper_klass,
+ Rtmp1, Rtmp2, Rtmp3, /*hack:*/ noreg,
+ &ok_is_subtype, NULL);
bind(not_subtype);
profile_typecheck_failed(Rtmp1);
--- a/hotspot/src/cpu/sparc/vm/sparc.ad Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/sparc/vm/sparc.ad Wed Jul 05 16:49:40 2017 +0200
@@ -547,7 +547,11 @@
int v_off = entry_offset*wordSize + vtableEntry::method_offset_in_bytes();
int klass_load_size;
if (UseCompressedOops) {
- klass_load_size = 3*BytesPerInstWord; // see MacroAssembler::load_klass()
+ assert(Universe::heap() != NULL, "java heap should be initialized");
+ if (Universe::narrow_oop_base() == NULL)
+ klass_load_size = 2*BytesPerInstWord; // see MacroAssembler::load_klass()
+ else
+ klass_load_size = 3*BytesPerInstWord;
} else {
klass_load_size = 1*BytesPerInstWord;
}
@@ -1601,9 +1605,11 @@
st->print_cr("\nUEP:");
#ifdef _LP64
if (UseCompressedOops) {
+ assert(Universe::heap() != NULL, "java heap should be initialized");
st->print_cr("\tLDUW [R_O0 + oopDesc::klass_offset_in_bytes],R_G5\t! Inline cache check - compressed klass");
st->print_cr("\tSLL R_G5,3,R_G5");
- st->print_cr("\tADD R_G5,R_G6_heap_base,R_G5");
+ if (Universe::narrow_oop_base() != NULL)
+ st->print_cr("\tADD R_G5,R_G6_heap_base,R_G5");
} else {
st->print_cr("\tLDX [R_O0 + oopDesc::klass_offset_in_bytes],R_G5\t! Inline cache check");
}
@@ -2502,7 +2508,11 @@
__ load_klass(O0, G3_scratch);
int klass_load_size;
if (UseCompressedOops) {
- klass_load_size = 3*BytesPerInstWord;
+ assert(Universe::heap() != NULL, "java heap should be initialized");
+ if (Universe::narrow_oop_base() == NULL)
+ klass_load_size = 2*BytesPerInstWord;
+ else
+ klass_load_size = 3*BytesPerInstWord;
} else {
klass_load_size = 1*BytesPerInstWord;
}
@@ -9005,6 +9015,33 @@
ins_pipe(long_memory_op);
%}
+
+//---------- Population Count Instructions -------------------------------------
+
+instruct popCountI(iRegI dst, iRegI src) %{
+ predicate(UsePopCountInstruction);
+ match(Set dst (PopCountI src));
+
+ format %{ "POPC $src, $dst" %}
+ ins_encode %{
+ __ popc($src$$Register, $dst$$Register);
+ %}
+ ins_pipe(ialu_reg);
+%}
+
+// Note: Long.bitCount(long) returns an int.
+instruct popCountL(iRegI dst, iRegL src) %{
+ predicate(UsePopCountInstruction);
+ match(Set dst (PopCountL src));
+
+ format %{ "POPC $src, $dst" %}
+ ins_encode %{
+ __ popc($src$$Register, $dst$$Register);
+ %}
+ ins_pipe(ialu_reg);
+%}
+
+
// ============================================================================
//------------Bytes reverse--------------------------------------------------
--- a/hotspot/src/cpu/sparc/vm/stubGenerator_sparc.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/sparc/vm/stubGenerator_sparc.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -900,19 +900,7 @@
__ align(CodeEntryAlignment);
StubCodeMark mark(this, "StubRoutines", "partial_subtype_check");
address start = __ pc();
- Label loop, miss;
-
- // Compare super with sub directly, since super is not in its own SSA.
- // The compiler used to emit this test, but we fold it in here,
- // to increase overall code density, with no real loss of speed.
- { Label L;
- __ cmp(O1, O2);
- __ brx(Assembler::notEqual, false, Assembler::pt, L);
- __ delayed()->nop();
- __ retl();
- __ delayed()->addcc(G0,0,O0); // set Z flags, zero result
- __ bind(L);
- }
+ Label miss;
#if defined(COMPILER2) && !defined(_LP64)
// Do not use a 'save' because it blows the 64-bit O registers.
@@ -936,56 +924,12 @@
Register L2_super = L2;
Register L3_index = L3;
-#ifdef _LP64
- Register L4_ooptmp = L4;
-
- if (UseCompressedOops) {
- // this must be under UseCompressedOops check, as we rely upon fact
- // that L4 not clobbered in C2 on 32-bit platforms, where we do explicit save
- // on stack, see several lines above
- __ encode_heap_oop(Rsuper, L4_ooptmp);
- }
-#endif
-
- inc_counter_np(SharedRuntime::_partial_subtype_ctr, L0, L1);
-
- __ ld_ptr( Rsub, sizeof(oopDesc) + Klass::secondary_supers_offset_in_bytes(), L3 );
- __ lduw(L3,arrayOopDesc::length_offset_in_bytes(),L0_ary_len);
- __ add(L3,arrayOopDesc::base_offset_in_bytes(T_OBJECT),L1_ary_ptr);
- __ clr(L3_index); // zero index
- // Load a little early; will load 1 off the end of the array.
- // Ok for now; revisit if we have other uses of this routine.
- if (UseCompressedOops) {
- __ lduw(L1_ary_ptr,0,L2_super);// Will load a little early
- } else {
- __ ld_ptr(L1_ary_ptr,0,L2_super);// Will load a little early
- }
-
- assert(heapOopSize != 0, "heapOopSize should be initialized");
- // The scan loop
- __ BIND(loop);
- __ add(L1_ary_ptr, heapOopSize, L1_ary_ptr); // Bump by OOP size
- __ cmp(L3_index,L0_ary_len);
- __ br(Assembler::equal,false,Assembler::pn,miss);
- __ delayed()->inc(L3_index); // Bump index
-
- if (UseCompressedOops) {
-#ifdef _LP64
- __ subcc(L2_super,L4_ooptmp,Rret); // Check for match; zero in Rret for a hit
- __ br( Assembler::notEqual, false, Assembler::pt, loop );
- __ delayed()->lduw(L1_ary_ptr,0,L2_super);// Will load a little early
-#else
- ShouldNotReachHere();
-#endif
- } else {
- __ subcc(L2_super,Rsuper,Rret); // Check for match; zero in Rret for a hit
- __ brx( Assembler::notEqual, false, Assembler::pt, loop );
- __ delayed()->ld_ptr(L1_ary_ptr,0,L2_super);// Will load a little early
- }
-
- // Got a hit; report success; set cache. Cache load doesn't
- // happen here; for speed it is directly emitted by the compiler.
- __ st_ptr( Rsuper, Rsub, sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes() );
+ __ check_klass_subtype_slow_path(Rsub, Rsuper,
+ L0, L1, L2, L3,
+ NULL, &miss);
+
+ // Match falls through here.
+ __ addcc(G0,0,Rret); // set Z flags, Z result
#if defined(COMPILER2) && !defined(_LP64)
__ ld_ptr(SP,(frame::register_save_words+0)*wordSize,L0);
@@ -999,7 +943,6 @@
__ delayed()->restore();
#endif
- // Hit or miss falls through here
__ BIND(miss);
__ addcc(G0,1,Rret); // set NZ flags, NZ result
@@ -2330,51 +2273,31 @@
Register super_check_offset,
Register super_klass,
Register temp,
- Label& L_success,
- Register deccc_hack = noreg) {
+ Label& L_success) {
assert_different_registers(sub_klass, super_check_offset, super_klass, temp);
BLOCK_COMMENT("type_check:");
- Label L_miss;
+ Label L_miss, L_pop_to_miss;
assert_clean_int(super_check_offset, temp);
- // maybe decrement caller's trip count:
-#define DELAY_SLOT delayed(); \
- { if (deccc_hack == noreg) __ nop(); else __ deccc(deccc_hack); }
-
- // if the pointers are equal, we are done (e.g., String[] elements)
- __ cmp(sub_klass, super_klass);
- __ brx(Assembler::equal, true, Assembler::pt, L_success);
- __ DELAY_SLOT;
-
- // check the supertype display:
- __ ld_ptr(sub_klass, super_check_offset, temp); // query the super type
- __ cmp(super_klass, temp); // test the super type
- __ brx(Assembler::equal, true, Assembler::pt, L_success);
- __ DELAY_SLOT;
-
- int sc_offset = (klassOopDesc::header_size() * HeapWordSize +
- Klass::secondary_super_cache_offset_in_bytes());
- __ cmp(super_klass, sc_offset);
- __ brx(Assembler::notEqual, true, Assembler::pt, L_miss);
- __ delayed()->nop();
-
+ __ check_klass_subtype_fast_path(sub_klass, super_klass, temp, noreg,
+ &L_success, &L_miss, NULL,
+ super_check_offset);
+
+ BLOCK_COMMENT("type_check_slow_path:");
__ save_frame(0);
- __ mov(sub_klass->after_save(), O1);
- // mov(super_klass->after_save(), O2); //fill delay slot
- assert(StubRoutines::Sparc::_partial_subtype_check != NULL, "order of generation");
- __ call(StubRoutines::Sparc::_partial_subtype_check);
- __ delayed()->mov(super_klass->after_save(), O2);
+ __ check_klass_subtype_slow_path(sub_klass->after_save(),
+ super_klass->after_save(),
+ L0, L1, L2, L4,
+ NULL, &L_pop_to_miss);
+ __ ba(false, L_success);
+ __ delayed()->restore();
+
+ __ bind(L_pop_to_miss);
__ restore();
- // Upon return, the condition codes are already set.
- __ brx(Assembler::equal, true, Assembler::pt, L_success);
- __ DELAY_SLOT;
-
-#undef DELAY_SLOT
-
// Fall through on failure!
__ BIND(L_miss);
}
@@ -2411,7 +2334,7 @@
gen_write_ref_array_pre_barrier(O1, O2);
#ifdef ASSERT
- // We sometimes save a frame (see partial_subtype_check below).
+ // We sometimes save a frame (see generate_type_check below).
// If this will cause trouble, let's fail now instead of later.
__ save_frame(0);
__ restore();
@@ -2455,41 +2378,39 @@
// G3, G4, G5 --- current oop, oop.klass, oop.klass.super
__ align(16);
- __ bind(store_element);
- // deccc(G1_remain); // decrement the count (hoisted)
+ __ BIND(store_element);
+ __ deccc(G1_remain); // decrement the count
__ store_heap_oop(G3_oop, O1_to, O5_offset); // store the oop
__ inc(O5_offset, heapOopSize); // step to next offset
__ brx(Assembler::zero, true, Assembler::pt, do_card_marks);
__ delayed()->set(0, O0); // return -1 on success
// ======== loop entry is here ========
- __ bind(load_element);
+ __ BIND(load_element);
__ load_heap_oop(O0_from, O5_offset, G3_oop); // load the oop
__ br_null(G3_oop, true, Assembler::pt, store_element);
- __ delayed()->deccc(G1_remain); // decrement the count
+ __ delayed()->nop();
__ load_klass(G3_oop, G4_klass); // query the object klass
generate_type_check(G4_klass, O3_ckoff, O4_ckval, G5_super,
// branch to this on success:
- store_element,
- // decrement this on success:
- G1_remain);
+ store_element);
// ======== end loop ========
// It was a real error; we must depend on the caller to finish the job.
// Register G1 has number of *remaining* oops, O2 number of *total* oops.
// Emit GC store barriers for the oops we have copied (O2 minus G1),
// and report their number to the caller.
- __ bind(fail);
+ __ BIND(fail);
__ subcc(O2_count, G1_remain, O2_count);
__ brx(Assembler::zero, false, Assembler::pt, done);
__ delayed()->not1(O2_count, O0); // report (-1^K) to caller
- __ bind(do_card_marks);
+ __ BIND(do_card_marks);
gen_write_ref_array_post_barrier(O1_to, O2_count, O3); // store check on O1[0..O2]
- __ bind(done);
+ __ BIND(done);
inc_counter_np(SharedRuntime::_checkcast_array_copy_ctr, O3, O4);
__ retl();
__ delayed()->nop(); // return value in 00
@@ -2942,14 +2863,15 @@
StubRoutines::_atomic_add_ptr_entry = StubRoutines::_atomic_add_entry;
StubRoutines::_fence_entry = generate_fence();
#endif // COMPILER2 !=> _LP64
-
- StubRoutines::Sparc::_partial_subtype_check = generate_partial_subtype_check();
}
void generate_all() {
// Generates all stubs and initializes the entry points
+ // Generate partial_subtype_check first here since its code depends on
+ // UseZeroBaseCompressedOops which is defined after heap initialization.
+ StubRoutines::Sparc::_partial_subtype_check = generate_partial_subtype_check();
// These entry points require SharedInfo::stack0 to be set up in non-core builds
StubRoutines::_throw_AbstractMethodError_entry = generate_throw_exception("AbstractMethodError throw_exception", CAST_FROM_FN_PTR(address, SharedRuntime::throw_AbstractMethodError), false);
StubRoutines::_throw_IncompatibleClassChangeError_entry= generate_throw_exception("IncompatibleClassChangeError throw_exception", CAST_FROM_FN_PTR(address, SharedRuntime::throw_IncompatibleClassChangeError), false);
--- a/hotspot/src/cpu/sparc/vm/vm_version_sparc.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/sparc/vm/vm_version_sparc.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -1,5 +1,5 @@
/*
- * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
+ * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -72,6 +72,9 @@
FLAG_SET_ERGO(bool, UseCompressedOops, false);
}
}
+ // 32-bit oops don't make sense for the 64-bit VM on sparc
+ // since the 32-bit VM has the same registers and smaller objects.
+ Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes);
#endif // _LP64
#ifdef COMPILER2
// Indirect branch is the same cost as direct
@@ -89,16 +92,26 @@
#endif
}
+ // Use hardware population count instruction if available.
+ if (has_hardware_popc()) {
+ if (FLAG_IS_DEFAULT(UsePopCountInstruction)) {
+ UsePopCountInstruction = true;
+ }
+ }
+
char buf[512];
- jio_snprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s",
+ jio_snprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s%s%s%s",
(has_v8() ? ", has_v8" : ""),
(has_v9() ? ", has_v9" : ""),
+ (has_hardware_popc() ? ", popc" : ""),
(has_vis1() ? ", has_vis1" : ""),
(has_vis2() ? ", has_vis2" : ""),
(is_ultra3() ? ", is_ultra3" : ""),
(is_sun4v() ? ", is_sun4v" : ""),
(is_niagara1() ? ", is_niagara1" : ""),
- (!has_hardware_int_muldiv() ? ", no-muldiv" : ""),
+ (is_niagara1_plus() ? ", is_niagara1_plus" : ""),
+ (!has_hardware_mul32() ? ", no-mul32" : ""),
+ (!has_hardware_div32() ? ", no-div32" : ""),
(!has_hardware_fsmuld() ? ", no-fsmuld" : ""));
// buf is started with ", " or is empty
--- a/hotspot/src/cpu/sparc/vm/vm_version_sparc.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/sparc/vm/vm_version_sparc.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -1,5 +1,5 @@
/*
- * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
+ * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -25,34 +25,38 @@
class VM_Version: public Abstract_VM_Version {
protected:
enum Feature_Flag {
- v8_instructions = 0,
- hardware_int_muldiv = 1,
- hardware_fsmuld = 2,
- v9_instructions = 3,
- vis1_instructions = 4,
- vis2_instructions = 5,
- sun4v_instructions = 6
+ v8_instructions = 0,
+ hardware_mul32 = 1,
+ hardware_div32 = 2,
+ hardware_fsmuld = 3,
+ hardware_popc = 4,
+ v9_instructions = 5,
+ vis1_instructions = 6,
+ vis2_instructions = 7,
+ sun4v_instructions = 8
};
enum Feature_Flag_Set {
- unknown_m = 0,
- all_features_m = -1,
+ unknown_m = 0,
+ all_features_m = -1,
- v8_instructions_m = 1 << v8_instructions,
- hardware_int_muldiv_m = 1 << hardware_int_muldiv,
- hardware_fsmuld_m = 1 << hardware_fsmuld,
- v9_instructions_m = 1 << v9_instructions,
- vis1_instructions_m = 1 << vis1_instructions,
- vis2_instructions_m = 1 << vis2_instructions,
- sun4v_m = 1 << sun4v_instructions,
+ v8_instructions_m = 1 << v8_instructions,
+ hardware_mul32_m = 1 << hardware_mul32,
+ hardware_div32_m = 1 << hardware_div32,
+ hardware_fsmuld_m = 1 << hardware_fsmuld,
+ hardware_popc_m = 1 << hardware_popc,
+ v9_instructions_m = 1 << v9_instructions,
+ vis1_instructions_m = 1 << vis1_instructions,
+ vis2_instructions_m = 1 << vis2_instructions,
+ sun4v_m = 1 << sun4v_instructions,
- generic_v8_m = v8_instructions_m | hardware_int_muldiv_m | hardware_fsmuld_m,
- generic_v9_m = generic_v8_m | v9_instructions_m | vis1_instructions_m,
- ultra3_m = generic_v9_m | vis2_instructions_m,
+ generic_v8_m = v8_instructions_m | hardware_mul32_m | hardware_div32_m | hardware_fsmuld_m,
+ generic_v9_m = generic_v8_m | v9_instructions_m,
+ ultra3_m = generic_v9_m | vis1_instructions_m | vis2_instructions_m,
// Temporary until we have something more accurate
- niagara1_unique_m = sun4v_m,
- niagara1_m = generic_v9_m | niagara1_unique_m
+ niagara1_unique_m = sun4v_m,
+ niagara1_m = generic_v9_m | niagara1_unique_m
};
static int _features;
@@ -62,7 +66,7 @@
static int determine_features();
static int platform_features(int features);
- static bool is_niagara1(int features) { return (features & niagara1_m) == niagara1_m; }
+ static bool is_niagara1(int features) { return (features & sun4v_m) != 0; }
static int maximum_niagara1_processor_count() { return 32; }
// Returns true if the platform is in the niagara line and
@@ -76,8 +80,10 @@
// Instruction support
static bool has_v8() { return (_features & v8_instructions_m) != 0; }
static bool has_v9() { return (_features & v9_instructions_m) != 0; }
- static bool has_hardware_int_muldiv() { return (_features & hardware_int_muldiv_m) != 0; }
+ static bool has_hardware_mul32() { return (_features & hardware_mul32_m) != 0; }
+ static bool has_hardware_div32() { return (_features & hardware_div32_m) != 0; }
static bool has_hardware_fsmuld() { return (_features & hardware_fsmuld_m) != 0; }
+ static bool has_hardware_popc() { return (_features & hardware_popc_m) != 0; }
static bool has_vis1() { return (_features & vis1_instructions_m) != 0; }
static bool has_vis2() { return (_features & vis2_instructions_m) != 0; }
--- a/hotspot/src/cpu/sparc/vm/vtableStubs_sparc.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/sparc/vm/vtableStubs_sparc.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -221,13 +221,15 @@
if (is_vtable_stub) {
// ld;ld;ld,jmp,nop
const int basic = 5*BytesPerInstWord +
- // shift;add for load_klass
- (UseCompressedOops ? 2*BytesPerInstWord : 0);
+ // shift;add for load_klass (only shift with zero heap based)
+ (UseCompressedOops ?
+ ((Universe::narrow_oop_base() == NULL) ? BytesPerInstWord : 2*BytesPerInstWord) : 0);
return basic + slop;
} else {
const int basic = (28 LP64_ONLY(+ 6)) * BytesPerInstWord +
- // shift;add for load_klass
- (UseCompressedOops ? 2*BytesPerInstWord : 0);
+ // shift;add for load_klass (only shift with zero heap based)
+ (UseCompressedOops ?
+ ((Universe::narrow_oop_base() == NULL) ? BytesPerInstWord : 2*BytesPerInstWord) : 0);
return (basic + slop);
}
}
--- a/hotspot/src/cpu/x86/vm/assembler_x86.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/x86/vm/assembler_x86.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -727,7 +727,7 @@
}
#ifdef _LP64
- assert(false, "fix locate_operand");
+ assert(which == narrow_oop_operand && !is_64bit, "instruction is not a movl adr, imm32");
#else
assert(which == imm_operand, "instruction has only an imm field");
#endif // LP64
@@ -2193,6 +2193,25 @@
emit_byte(0x58 | encode);
}
+void Assembler::popcntl(Register dst, Address src) {
+ assert(VM_Version::supports_popcnt(), "must support");
+ InstructionMark im(this);
+ emit_byte(0xF3);
+ prefix(src, dst);
+ emit_byte(0x0F);
+ emit_byte(0xB8);
+ emit_operand(dst, src);
+}
+
+void Assembler::popcntl(Register dst, Register src) {
+ assert(VM_Version::supports_popcnt(), "must support");
+ emit_byte(0xF3);
+ int encode = prefix_and_encode(dst->encoding(), src->encoding());
+ emit_byte(0x0F);
+ emit_byte(0xB8);
+ emit_byte(0xC0 | encode);
+}
+
void Assembler::popf() {
emit_byte(0x9D);
}
@@ -3224,12 +3243,6 @@
emit_byte(0xF1);
}
-void Assembler::mov_literal32(Register dst, int32_t imm32, RelocationHolder const& rspec, int format) {
- InstructionMark im(this);
- int encode = prefix_and_encode(dst->encoding());
- emit_byte(0xB8 | encode);
- emit_data((int)imm32, rspec, format);
-}
#ifndef _LP64
@@ -3249,6 +3262,12 @@
emit_data((int)imm32, rspec, 0);
}
+void Assembler::mov_literal32(Register dst, int32_t imm32, RelocationHolder const& rspec) {
+ InstructionMark im(this);
+ int encode = prefix_and_encode(dst->encoding());
+ emit_byte(0xB8 | encode);
+ emit_data((int)imm32, rspec, 0);
+}
void Assembler::popa() { // 32bit
emit_byte(0x61);
@@ -3857,6 +3876,37 @@
emit_data64(imm64, rspec);
}
+void Assembler::mov_narrow_oop(Register dst, int32_t imm32, RelocationHolder const& rspec) {
+ InstructionMark im(this);
+ int encode = prefix_and_encode(dst->encoding());
+ emit_byte(0xB8 | encode);
+ emit_data((int)imm32, rspec, narrow_oop_operand);
+}
+
+void Assembler::mov_narrow_oop(Address dst, int32_t imm32, RelocationHolder const& rspec) {
+ InstructionMark im(this);
+ prefix(dst);
+ emit_byte(0xC7);
+ emit_operand(rax, dst, 4);
+ emit_data((int)imm32, rspec, narrow_oop_operand);
+}
+
+void Assembler::cmp_narrow_oop(Register src1, int32_t imm32, RelocationHolder const& rspec) {
+ InstructionMark im(this);
+ int encode = prefix_and_encode(src1->encoding());
+ emit_byte(0x81);
+ emit_byte(0xF8 | encode);
+ emit_data((int)imm32, rspec, narrow_oop_operand);
+}
+
+void Assembler::cmp_narrow_oop(Address src1, int32_t imm32, RelocationHolder const& rspec) {
+ InstructionMark im(this);
+ prefix(src1);
+ emit_byte(0x81);
+ emit_operand(rax, src1, 4);
+ emit_data((int)imm32, rspec, narrow_oop_operand);
+}
+
void Assembler::movdq(XMMRegister dst, Register src) {
// table D-1 says MMX/SSE2
NOT_LP64(assert(VM_Version::supports_sse2() || VM_Version::supports_mmx(), ""));
@@ -4049,6 +4099,25 @@
addq(rsp, 16 * wordSize);
}
+void Assembler::popcntq(Register dst, Address src) {
+ assert(VM_Version::supports_popcnt(), "must support");
+ InstructionMark im(this);
+ emit_byte(0xF3);
+ prefixq(src, dst);
+ emit_byte(0x0F);
+ emit_byte(0xB8);
+ emit_operand(dst, src);
+}
+
+void Assembler::popcntq(Register dst, Register src) {
+ assert(VM_Version::supports_popcnt(), "must support");
+ emit_byte(0xF3);
+ int encode = prefixq_and_encode(dst->encoding(), src->encoding());
+ emit_byte(0x0F);
+ emit_byte(0xB8);
+ emit_byte(0xC0 | encode);
+}
+
void Assembler::popq(Address dst) {
InstructionMark im(this);
prefixq(dst);
@@ -7217,6 +7286,225 @@
}
+void MacroAssembler::check_klass_subtype(Register sub_klass,
+ Register super_klass,
+ Register temp_reg,
+ Label& L_success) {
+ Label L_failure;
+ check_klass_subtype_fast_path(sub_klass, super_klass, temp_reg, &L_success, &L_failure, NULL);
+ check_klass_subtype_slow_path(sub_klass, super_klass, temp_reg, noreg, &L_success, NULL);
+ bind(L_failure);
+}
+
+
+void MacroAssembler::check_klass_subtype_fast_path(Register sub_klass,
+ Register super_klass,
+ Register temp_reg,
+ Label* L_success,
+ Label* L_failure,
+ Label* L_slow_path,
+ RegisterConstant super_check_offset) {
+ assert_different_registers(sub_klass, super_klass, temp_reg);
+ bool must_load_sco = (super_check_offset.constant_or_zero() == -1);
+ if (super_check_offset.is_register()) {
+ assert_different_registers(sub_klass, super_klass,
+ super_check_offset.as_register());
+ } else if (must_load_sco) {
+ assert(temp_reg != noreg, "supply either a temp or a register offset");
+ }
+
+ Label L_fallthrough;
+ int label_nulls = 0;
+ if (L_success == NULL) { L_success = &L_fallthrough; label_nulls++; }
+ if (L_failure == NULL) { L_failure = &L_fallthrough; label_nulls++; }
+ if (L_slow_path == NULL) { L_slow_path = &L_fallthrough; label_nulls++; }
+ assert(label_nulls <= 1, "at most one NULL in the batch");
+
+ int sc_offset = (klassOopDesc::header_size() * HeapWordSize +
+ Klass::secondary_super_cache_offset_in_bytes());
+ int sco_offset = (klassOopDesc::header_size() * HeapWordSize +
+ Klass::super_check_offset_offset_in_bytes());
+ Address super_check_offset_addr(super_klass, sco_offset);
+
+ // Hacked jcc, which "knows" that L_fallthrough, at least, is in
+ // range of a jccb. If this routine grows larger, reconsider at
+ // least some of these.
+#define local_jcc(assembler_cond, label) \
+ if (&(label) == &L_fallthrough) jccb(assembler_cond, label); \
+ else jcc( assembler_cond, label) /*omit semi*/
+
+ // Hacked jmp, which may only be used just before L_fallthrough.
+#define final_jmp(label) \
+ if (&(label) == &L_fallthrough) { /*do nothing*/ } \
+ else jmp(label) /*omit semi*/
+
+ // If the pointers are equal, we are done (e.g., String[] elements).
+ // This self-check enables sharing of secondary supertype arrays among
+ // non-primary types such as array-of-interface. Otherwise, each such
+ // type would need its own customized SSA.
+ // We move this check to the front of the fast path because many
+ // type checks are in fact trivially successful in this manner,
+ // so we get a nicely predicted branch right at the start of the check.
+ cmpptr(sub_klass, super_klass);
+ local_jcc(Assembler::equal, *L_success);
+
+ // Check the supertype display:
+ if (must_load_sco) {
+ // Positive movl does right thing on LP64.
+ movl(temp_reg, super_check_offset_addr);
+ super_check_offset = RegisterConstant(temp_reg);
+ }
+ Address super_check_addr(sub_klass, super_check_offset, Address::times_1, 0);
+ cmpptr(super_klass, super_check_addr); // load displayed supertype
+
+ // This check has worked decisively for primary supers.
+ // Secondary supers are sought in the super_cache ('super_cache_addr').
+ // (Secondary supers are interfaces and very deeply nested subtypes.)
+ // This works in the same check above because of a tricky aliasing
+ // between the super_cache and the primary super display elements.
+ // (The 'super_check_addr' can address either, as the case requires.)
+ // Note that the cache is updated below if it does not help us find
+ // what we need immediately.
+ // So if it was a primary super, we can just fail immediately.
+ // Otherwise, it's the slow path for us (no success at this point).
+
+ if (super_check_offset.is_register()) {
+ local_jcc(Assembler::equal, *L_success);
+ cmpl(super_check_offset.as_register(), sc_offset);
+ if (L_failure == &L_fallthrough) {
+ local_jcc(Assembler::equal, *L_slow_path);
+ } else {
+ local_jcc(Assembler::notEqual, *L_failure);
+ final_jmp(*L_slow_path);
+ }
+ } else if (super_check_offset.as_constant() == sc_offset) {
+ // Need a slow path; fast failure is impossible.
+ if (L_slow_path == &L_fallthrough) {
+ local_jcc(Assembler::equal, *L_success);
+ } else {
+ local_jcc(Assembler::notEqual, *L_slow_path);
+ final_jmp(*L_success);
+ }
+ } else {
+ // No slow path; it's a fast decision.
+ if (L_failure == &L_fallthrough) {
+ local_jcc(Assembler::equal, *L_success);
+ } else {
+ local_jcc(Assembler::notEqual, *L_failure);
+ final_jmp(*L_success);
+ }
+ }
+
+ bind(L_fallthrough);
+
+#undef local_jcc
+#undef final_jmp
+}
+
+
+void MacroAssembler::check_klass_subtype_slow_path(Register sub_klass,
+ Register super_klass,
+ Register temp_reg,
+ Register temp2_reg,
+ Label* L_success,
+ Label* L_failure,
+ bool set_cond_codes) {
+ assert_different_registers(sub_klass, super_klass, temp_reg);
+ if (temp2_reg != noreg)
+ assert_different_registers(sub_klass, super_klass, temp_reg, temp2_reg);
+#define IS_A_TEMP(reg) ((reg) == temp_reg || (reg) == temp2_reg)
+
+ Label L_fallthrough;
+ int label_nulls = 0;
+ if (L_success == NULL) { L_success = &L_fallthrough; label_nulls++; }
+ if (L_failure == NULL) { L_failure = &L_fallthrough; label_nulls++; }
+ assert(label_nulls <= 1, "at most one NULL in the batch");
+
+ // a couple of useful fields in sub_klass:
+ int ss_offset = (klassOopDesc::header_size() * HeapWordSize +
+ Klass::secondary_supers_offset_in_bytes());
+ int sc_offset = (klassOopDesc::header_size() * HeapWordSize +
+ Klass::secondary_super_cache_offset_in_bytes());
+ Address secondary_supers_addr(sub_klass, ss_offset);
+ Address super_cache_addr( sub_klass, sc_offset);
+
+ // Do a linear scan of the secondary super-klass chain.
+ // This code is rarely used, so simplicity is a virtue here.
+ // The repne_scan instruction uses fixed registers, which we must spill.
+ // Don't worry too much about pre-existing connections with the input regs.
+
+ assert(sub_klass != rax, "killed reg"); // killed by mov(rax, super)
+ assert(sub_klass != rcx, "killed reg"); // killed by lea(rcx, &pst_counter)
+
+ // Get super_klass value into rax (even if it was in rdi or rcx).
+ bool pushed_rax = false, pushed_rcx = false, pushed_rdi = false;
+ if (super_klass != rax || UseCompressedOops) {
+ if (!IS_A_TEMP(rax)) { push(rax); pushed_rax = true; }
+ mov(rax, super_klass);
+ }
+ if (!IS_A_TEMP(rcx)) { push(rcx); pushed_rcx = true; }
+ if (!IS_A_TEMP(rdi)) { push(rdi); pushed_rdi = true; }
+
+#ifndef PRODUCT
+ int* pst_counter = &SharedRuntime::_partial_subtype_ctr;
+ ExternalAddress pst_counter_addr((address) pst_counter);
+ NOT_LP64( incrementl(pst_counter_addr) );
+ LP64_ONLY( lea(rcx, pst_counter_addr) );
+ LP64_ONLY( incrementl(Address(rcx, 0)) );
+#endif //PRODUCT
+
+ // We will consult the secondary-super array.
+ movptr(rdi, secondary_supers_addr);
+ // Load the array length. (Positive movl does right thing on LP64.)
+ movl(rcx, Address(rdi, arrayOopDesc::length_offset_in_bytes()));
+ // Skip to start of data.
+ addptr(rdi, arrayOopDesc::base_offset_in_bytes(T_OBJECT));
+
+ // Scan RCX words at [RDI] for an occurrence of RAX.
+ // Set NZ/Z based on last compare.
+#ifdef _LP64
+ // This part is tricky, as values in supers array could be 32 or 64 bit wide
+ // and we store values in objArrays always encoded, thus we need to encode
+ // the value of rax before repne. Note that rax is dead after the repne.
+ if (UseCompressedOops) {
+ encode_heap_oop_not_null(rax);
+ // The superclass is never null; it would be a basic system error if a null
+ // pointer were to sneak in here. Note that we have already loaded the
+ // Klass::super_check_offset from the super_klass in the fast path,
+ // so if there is a null in that register, we are already in the afterlife.
+ repne_scanl();
+ } else
+#endif // _LP64
+ repne_scan();
+
+ // Unspill the temp. registers:
+ if (pushed_rdi) pop(rdi);
+ if (pushed_rcx) pop(rcx);
+ if (pushed_rax) pop(rax);
+
+ if (set_cond_codes) {
+ // Special hack for the AD files: rdi is guaranteed non-zero.
+ assert(!pushed_rdi, "rdi must be left non-NULL");
+ // Also, the condition codes are properly set Z/NZ on succeed/failure.
+ }
+
+ if (L_failure == &L_fallthrough)
+ jccb(Assembler::notEqual, *L_failure);
+ else jcc(Assembler::notEqual, *L_failure);
+
+ // Success. Cache the super we found and proceed in triumph.
+ movptr(super_cache_addr, super_klass);
+
+ if (L_success != &L_fallthrough) {
+ jmp(*L_success);
+ }
+
+#undef IS_A_TEMP
+
+ bind(L_fallthrough);
+}
+
+
void MacroAssembler::ucomisd(XMMRegister dst, AddressLiteral src) {
ucomisd(dst, as_Address(src));
}
@@ -7710,14 +7998,21 @@
void MacroAssembler::load_prototype_header(Register dst, Register src) {
#ifdef _LP64
if (UseCompressedOops) {
+ assert (Universe::heap() != NULL, "java heap should be initialized");
movl(dst, Address(src, oopDesc::klass_offset_in_bytes()));
- movq(dst, Address(r12_heapbase, dst, Address::times_8, Klass::prototype_header_offset_in_bytes() + klassOopDesc::klass_part_offset_in_bytes()));
+ if (Universe::narrow_oop_shift() != 0) {
+ assert(Address::times_8 == LogMinObjAlignmentInBytes &&
+ Address::times_8 == Universe::narrow_oop_shift(), "decode alg wrong");
+ movq(dst, Address(r12_heapbase, dst, Address::times_8, Klass::prototype_header_offset_in_bytes() + klassOopDesc::klass_part_offset_in_bytes()));
+ } else {
+ movq(dst, Address(dst, Klass::prototype_header_offset_in_bytes() + klassOopDesc::klass_part_offset_in_bytes()));
+ }
} else
#endif
- {
- movptr(dst, Address(src, oopDesc::klass_offset_in_bytes()));
- movptr(dst, Address(dst, Klass::prototype_header_offset_in_bytes() + klassOopDesc::klass_part_offset_in_bytes()));
- }
+ {
+ movptr(dst, Address(src, oopDesc::klass_offset_in_bytes()));
+ movptr(dst, Address(dst, Klass::prototype_header_offset_in_bytes() + klassOopDesc::klass_part_offset_in_bytes()));
+ }
}
void MacroAssembler::store_klass(Register dst, Register src) {
@@ -7760,11 +8055,20 @@
// Algorithm must match oop.inline.hpp encode_heap_oop.
void MacroAssembler::encode_heap_oop(Register r) {
assert (UseCompressedOops, "should be compressed");
+ assert (Universe::heap() != NULL, "java heap should be initialized");
+ if (Universe::narrow_oop_base() == NULL) {
+ verify_oop(r, "broken oop in encode_heap_oop");
+ if (Universe::narrow_oop_shift() != 0) {
+ assert (LogMinObjAlignmentInBytes == Universe::narrow_oop_shift(), "decode alg wrong");
+ shrq(r, LogMinObjAlignmentInBytes);
+ }
+ return;
+ }
#ifdef ASSERT
if (CheckCompressedOops) {
Label ok;
push(rscratch1); // cmpptr trashes rscratch1
- cmpptr(r12_heapbase, ExternalAddress((address)Universe::heap_base_addr()));
+ cmpptr(r12_heapbase, ExternalAddress((address)Universe::narrow_oop_base_addr()));
jcc(Assembler::equal, ok);
stop("MacroAssembler::encode_heap_oop: heap base corrupted?");
bind(ok);
@@ -7780,6 +8084,7 @@
void MacroAssembler::encode_heap_oop_not_null(Register r) {
assert (UseCompressedOops, "should be compressed");
+ assert (Universe::heap() != NULL, "java heap should be initialized");
#ifdef ASSERT
if (CheckCompressedOops) {
Label ok;
@@ -7790,12 +8095,18 @@
}
#endif
verify_oop(r, "broken oop in encode_heap_oop_not_null");
- subq(r, r12_heapbase);
- shrq(r, LogMinObjAlignmentInBytes);
+ if (Universe::narrow_oop_base() != NULL) {
+ subq(r, r12_heapbase);
+ }
+ if (Universe::narrow_oop_shift() != 0) {
+ assert (LogMinObjAlignmentInBytes == Universe::narrow_oop_shift(), "decode alg wrong");
+ shrq(r, LogMinObjAlignmentInBytes);
+ }
}
void MacroAssembler::encode_heap_oop_not_null(Register dst, Register src) {
assert (UseCompressedOops, "should be compressed");
+ assert (Universe::heap() != NULL, "java heap should be initialized");
#ifdef ASSERT
if (CheckCompressedOops) {
Label ok;
@@ -7809,18 +8120,32 @@
if (dst != src) {
movq(dst, src);
}
- subq(dst, r12_heapbase);
- shrq(dst, LogMinObjAlignmentInBytes);
+ if (Universe::narrow_oop_base() != NULL) {
+ subq(dst, r12_heapbase);
+ }
+ if (Universe::narrow_oop_shift() != 0) {
+ assert (LogMinObjAlignmentInBytes == Universe::narrow_oop_shift(), "decode alg wrong");
+ shrq(dst, LogMinObjAlignmentInBytes);
+ }
}
void MacroAssembler::decode_heap_oop(Register r) {
assert (UseCompressedOops, "should be compressed");
+ assert (Universe::heap() != NULL, "java heap should be initialized");
+ if (Universe::narrow_oop_base() == NULL) {
+ if (Universe::narrow_oop_shift() != 0) {
+ assert (LogMinObjAlignmentInBytes == Universe::narrow_oop_shift(), "decode alg wrong");
+ shlq(r, LogMinObjAlignmentInBytes);
+ }
+ verify_oop(r, "broken oop in decode_heap_oop");
+ return;
+ }
#ifdef ASSERT
if (CheckCompressedOops) {
Label ok;
push(rscratch1);
cmpptr(r12_heapbase,
- ExternalAddress((address)Universe::heap_base_addr()));
+ ExternalAddress((address)Universe::narrow_oop_base_addr()));
jcc(Assembler::equal, ok);
stop("MacroAssembler::decode_heap_oop: heap base corrupted?");
bind(ok);
@@ -7844,32 +8169,76 @@
void MacroAssembler::decode_heap_oop_not_null(Register r) {
assert (UseCompressedOops, "should only be used for compressed headers");
+ assert (Universe::heap() != NULL, "java heap should be initialized");
// Cannot assert, unverified entry point counts instructions (see .ad file)
// vtableStubs also counts instructions in pd_code_size_limit.
// Also do not verify_oop as this is called by verify_oop.
- assert(Address::times_8 == LogMinObjAlignmentInBytes, "decode alg wrong");
- leaq(r, Address(r12_heapbase, r, Address::times_8, 0));
+ if (Universe::narrow_oop_base() == NULL) {
+ if (Universe::narrow_oop_shift() != 0) {
+ assert (LogMinObjAlignmentInBytes == Universe::narrow_oop_shift(), "decode alg wrong");
+ shlq(r, LogMinObjAlignmentInBytes);
+ }
+ } else {
+ assert (Address::times_8 == LogMinObjAlignmentInBytes &&
+ Address::times_8 == Universe::narrow_oop_shift(), "decode alg wrong");
+ leaq(r, Address(r12_heapbase, r, Address::times_8, 0));
+ }
}
void MacroAssembler::decode_heap_oop_not_null(Register dst, Register src) {
assert (UseCompressedOops, "should only be used for compressed headers");
+ assert (Universe::heap() != NULL, "java heap should be initialized");
// Cannot assert, unverified entry point counts instructions (see .ad file)
// vtableStubs also counts instructions in pd_code_size_limit.
// Also do not verify_oop as this is called by verify_oop.
- assert(Address::times_8 == LogMinObjAlignmentInBytes, "decode alg wrong");
- leaq(dst, Address(r12_heapbase, src, Address::times_8, 0));
+ if (Universe::narrow_oop_shift() != 0) {
+ assert (Address::times_8 == LogMinObjAlignmentInBytes &&
+ Address::times_8 == Universe::narrow_oop_shift(), "decode alg wrong");
+ leaq(dst, Address(r12_heapbase, src, Address::times_8, 0));
+ } else if (dst != src) {
+ movq(dst, src);
+ }
}
void MacroAssembler::set_narrow_oop(Register dst, jobject obj) {
- assert(oop_recorder() != NULL, "this assembler needs an OopRecorder");
+ assert (UseCompressedOops, "should only be used for compressed headers");
+ assert (Universe::heap() != NULL, "java heap should be initialized");
+ assert (oop_recorder() != NULL, "this assembler needs an OopRecorder");
+ int oop_index = oop_recorder()->find_index(obj);
+ RelocationHolder rspec = oop_Relocation::spec(oop_index);
+ mov_narrow_oop(dst, oop_index, rspec);
+}
+
+void MacroAssembler::set_narrow_oop(Address dst, jobject obj) {
+ assert (UseCompressedOops, "should only be used for compressed headers");
+ assert (Universe::heap() != NULL, "java heap should be initialized");
+ assert (oop_recorder() != NULL, "this assembler needs an OopRecorder");
int oop_index = oop_recorder()->find_index(obj);
RelocationHolder rspec = oop_Relocation::spec(oop_index);
- mov_literal32(dst, oop_index, rspec, narrow_oop_operand);
+ mov_narrow_oop(dst, oop_index, rspec);
+}
+
+void MacroAssembler::cmp_narrow_oop(Register dst, jobject obj) {
+ assert (UseCompressedOops, "should only be used for compressed headers");
+ assert (Universe::heap() != NULL, "java heap should be initialized");
+ assert (oop_recorder() != NULL, "this assembler needs an OopRecorder");
+ int oop_index = oop_recorder()->find_index(obj);
+ RelocationHolder rspec = oop_Relocation::spec(oop_index);
+ Assembler::cmp_narrow_oop(dst, oop_index, rspec);
+}
+
+void MacroAssembler::cmp_narrow_oop(Address dst, jobject obj) {
+ assert (UseCompressedOops, "should only be used for compressed headers");
+ assert (Universe::heap() != NULL, "java heap should be initialized");
+ assert (oop_recorder() != NULL, "this assembler needs an OopRecorder");
+ int oop_index = oop_recorder()->find_index(obj);
+ RelocationHolder rspec = oop_Relocation::spec(oop_index);
+ Assembler::cmp_narrow_oop(dst, oop_index, rspec);
}
void MacroAssembler::reinit_heapbase() {
if (UseCompressedOops) {
- movptr(r12_heapbase, ExternalAddress((address)Universe::heap_base_addr()));
+ movptr(r12_heapbase, ExternalAddress((address)Universe::narrow_oop_base_addr()));
}
}
#endif // _LP64
--- a/hotspot/src/cpu/x86/vm/assembler_x86.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/x86/vm/assembler_x86.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -578,20 +578,25 @@
// These are all easily abused and hence protected
- void mov_literal32(Register dst, int32_t imm32, RelocationHolder const& rspec, int format = 0);
-
// 32BIT ONLY SECTION
#ifndef _LP64
// Make these disappear in 64bit mode since they would never be correct
void cmp_literal32(Register src1, int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY
void cmp_literal32(Address src1, int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY
+ void mov_literal32(Register dst, int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY
void mov_literal32(Address dst, int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY
void push_literal32(int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY
#else
// 64BIT ONLY SECTION
void mov_literal64(Register dst, intptr_t imm64, RelocationHolder const& rspec); // 64BIT ONLY
+
+ void cmp_narrow_oop(Register src1, int32_t imm32, RelocationHolder const& rspec);
+ void cmp_narrow_oop(Address src1, int32_t imm32, RelocationHolder const& rspec);
+
+ void mov_narrow_oop(Register dst, int32_t imm32, RelocationHolder const& rspec);
+ void mov_narrow_oop(Address dst, int32_t imm32, RelocationHolder const& rspec);
#endif // _LP64
// These are unique in that we are ensured by the caller that the 32bit
@@ -1219,6 +1224,14 @@
void popq(Address dst);
#endif
+ void popcntl(Register dst, Address src);
+ void popcntl(Register dst, Register src);
+
+#ifdef _LP64
+ void popcntq(Register dst, Address src);
+ void popcntq(Register dst, Register src);
+#endif
+
// Prefetches (SSE, SSE2, 3DNOW only)
void prefetchnta(Address src);
@@ -1647,6 +1660,9 @@
void decode_heap_oop_not_null(Register dst, Register src);
void set_narrow_oop(Register dst, jobject obj);
+ void set_narrow_oop(Address dst, jobject obj);
+ void cmp_narrow_oop(Register dst, jobject obj);
+ void cmp_narrow_oop(Address dst, jobject obj);
// if heap base register is used - reinit it with the correct value
void reinit_heapbase();
@@ -1791,6 +1807,40 @@
Register scan_temp,
Label& no_such_interface);
+ // Test sub_klass against super_klass, with fast and slow paths.
+
+ // The fast path produces a tri-state answer: yes / no / maybe-slow.
+ // One of the three labels can be NULL, meaning take the fall-through.
+ // If super_check_offset is -1, the value is loaded up from super_klass.
+ // No registers are killed, except temp_reg.
+ void check_klass_subtype_fast_path(Register sub_klass,
+ Register super_klass,
+ Register temp_reg,
+ Label* L_success,
+ Label* L_failure,
+ Label* L_slow_path,
+ RegisterConstant super_check_offset = RegisterConstant(-1));
+
+ // The rest of the type check; must be wired to a corresponding fast path.
+ // It does not repeat the fast path logic, so don't use it standalone.
+ // The temp_reg and temp2_reg can be noreg, if no temps are available.
+ // Updates the sub's secondary super cache as necessary.
+ // If set_cond_codes, condition codes will be Z on success, NZ on failure.
+ void check_klass_subtype_slow_path(Register sub_klass,
+ Register super_klass,
+ Register temp_reg,
+ Register temp2_reg,
+ Label* L_success,
+ Label* L_failure,
+ bool set_cond_codes = false);
+
+ // Simplified, combined version, good for typical uses.
+ // Falls through on failure.
+ void check_klass_subtype(Register sub_klass,
+ Register super_klass,
+ Register temp_reg,
+ Label& L_success);
+
//----
void set_word_if_not_zero(Register reg); // sets reg to 1 if not zero, otherwise 0
--- a/hotspot/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -1598,18 +1598,9 @@
// get instance klass
__ movptr(k_RInfo, Address(k_RInfo, objArrayKlass::element_klass_offset_in_bytes() + sizeof(oopDesc)));
- // get super_check_offset
- __ movl(Rtmp1, Address(k_RInfo, sizeof(oopDesc) + Klass::super_check_offset_offset_in_bytes()));
- // See if we get an immediate positive hit
- __ cmpptr(k_RInfo, Address(klass_RInfo, Rtmp1, Address::times_1));
- __ jcc(Assembler::equal, done);
- // check for immediate negative hit
- __ cmpl(Rtmp1, sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes());
- __ jcc(Assembler::notEqual, *stub->entry());
- // check for self
- __ cmpptr(klass_RInfo, k_RInfo);
- __ jcc(Assembler::equal, done);
-
+ // perform the fast part of the checking logic
+ __ check_klass_subtype_fast_path(klass_RInfo, k_RInfo, Rtmp1, &done, stub->entry(), NULL);
+ // call out-of-line instance of __ check_klass_subtype_slow_path(...):
__ push(klass_RInfo);
__ push(k_RInfo);
__ call(RuntimeAddress(Runtime1::entry_for(Runtime1::slow_subtype_check_id)));
@@ -1735,17 +1726,9 @@
}
__ bind(done);
} else {
- __ movl(Rtmp1, Address(k_RInfo, sizeof(oopDesc) + Klass::super_check_offset_offset_in_bytes()));
- // See if we get an immediate positive hit
- __ cmpptr(k_RInfo, Address(klass_RInfo, Rtmp1, Address::times_1));
- __ jcc(Assembler::equal, done);
- // check for immediate negative hit
- __ cmpl(Rtmp1, sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes());
- __ jcc(Assembler::notEqual, *stub->entry());
- // check for self
- __ cmpptr(klass_RInfo, k_RInfo);
- __ jcc(Assembler::equal, done);
-
+ // perform the fast part of the checking logic
+ __ check_klass_subtype_fast_path(klass_RInfo, k_RInfo, Rtmp1, &done, stub->entry(), NULL);
+ // call out-of-line instance of __ check_klass_subtype_slow_path(...):
__ push(klass_RInfo);
__ push(k_RInfo);
__ call(RuntimeAddress(Runtime1::entry_for(Runtime1::slow_subtype_check_id)));
@@ -1821,23 +1804,15 @@
__ pop(dst);
__ jmp(done);
}
- } else {
-#else
- { // YUCK
+ }
+ else // next block is unconditional if LP64:
#endif // LP64
+ {
assert(dst != klass_RInfo && dst != k_RInfo, "need 3 registers");
- __ movl(dst, Address(k_RInfo, sizeof(oopDesc) + Klass::super_check_offset_offset_in_bytes()));
- // See if we get an immediate positive hit
- __ cmpptr(k_RInfo, Address(klass_RInfo, dst, Address::times_1));
- __ jcc(Assembler::equal, one);
- // check for immediate negative hit
- __ cmpl(dst, sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes());
- __ jcc(Assembler::notEqual, zero);
- // check for self
- __ cmpptr(klass_RInfo, k_RInfo);
- __ jcc(Assembler::equal, one);
-
+ // perform the fast part of the checking logic
+ __ check_klass_subtype_fast_path(klass_RInfo, k_RInfo, dst, &one, &zero, NULL);
+ // call out-of-line instance of __ check_klass_subtype_slow_path(...):
__ push(klass_RInfo);
__ push(k_RInfo);
__ call(RuntimeAddress(Runtime1::entry_for(Runtime1::slow_subtype_check_id)));
--- a/hotspot/src/cpu/x86/vm/c1_Runtime1_x86.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/x86/vm/c1_Runtime1_x86.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -1354,6 +1354,13 @@
case slow_subtype_check_id:
{
+ // Typical calling sequence:
+ // __ push(klass_RInfo); // object klass or other subclass
+ // __ push(sup_k_RInfo); // array element klass or other superclass
+ // __ call(slow_subtype_check);
+ // Note that the subclass is pushed first, and is therefore deepest.
+ // Previous versions of this code reversed the names 'sub' and 'super'.
+ // This was operationally harmless but made the code unreadable.
enum layout {
rax_off, SLOT2(raxH_off)
rcx_off, SLOT2(rcxH_off)
@@ -1361,9 +1368,10 @@
rdi_off, SLOT2(rdiH_off)
// saved_rbp_off, SLOT2(saved_rbpH_off)
return_off, SLOT2(returnH_off)
- sub_off, SLOT2(subH_off)
- super_off, SLOT2(superH_off)
- framesize
+ sup_k_off, SLOT2(sup_kH_off)
+ klass_off, SLOT2(superH_off)
+ framesize,
+ result_off = klass_off // deepest argument is also the return value
};
__ set_info("slow_subtype_check", dont_gc_arguments);
@@ -1373,19 +1381,14 @@
__ push(rax);
// This is called by pushing args and not with C abi
- __ movptr(rsi, Address(rsp, (super_off) * VMRegImpl::stack_slot_size)); // super
- __ movptr(rax, Address(rsp, (sub_off ) * VMRegImpl::stack_slot_size)); // sub
-
- __ movptr(rdi,Address(rsi,sizeof(oopDesc) + Klass::secondary_supers_offset_in_bytes()));
- // since size is postive movl does right thing on 64bit
- __ movl(rcx, Address(rdi, arrayOopDesc::length_offset_in_bytes()));
- __ addptr(rdi, arrayOopDesc::base_offset_in_bytes(T_OBJECT));
+ __ movptr(rsi, Address(rsp, (klass_off) * VMRegImpl::stack_slot_size)); // subclass
+ __ movptr(rax, Address(rsp, (sup_k_off) * VMRegImpl::stack_slot_size)); // superclass
Label miss;
- __ repne_scan();
- __ jcc(Assembler::notEqual, miss);
- __ movptr(Address(rsi,sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes()), rax);
- __ movptr(Address(rsp, (super_off) * VMRegImpl::stack_slot_size), 1); // result
+ __ check_klass_subtype_slow_path(rsi, rax, rcx, rdi, NULL, &miss);
+
+ // fallthrough on success:
+ __ movptr(Address(rsp, (result_off) * VMRegImpl::stack_slot_size), 1); // result
__ pop(rax);
__ pop(rcx);
__ pop(rsi);
@@ -1393,7 +1396,7 @@
__ ret(0);
__ bind(miss);
- __ movptr(Address(rsp, (super_off) * VMRegImpl::stack_slot_size), NULL_WORD); // result
+ __ movptr(Address(rsp, (result_off) * VMRegImpl::stack_slot_size), NULL_WORD); // result
__ pop(rax);
__ pop(rcx);
__ pop(rsi);
--- a/hotspot/src/cpu/x86/vm/interp_masm_x86_32.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/x86/vm/interp_masm_x86_32.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -219,47 +219,16 @@
// Resets EDI to locals. Register sub_klass cannot be any of the above.
void InterpreterMacroAssembler::gen_subtype_check( Register Rsub_klass, Label &ok_is_subtype ) {
assert( Rsub_klass != rax, "rax, holds superklass" );
- assert( Rsub_klass != rcx, "rcx holds 2ndary super array length" );
- assert( Rsub_klass != rdi, "rdi holds 2ndary super array scan ptr" );
- Label not_subtype, loop;
+ assert( Rsub_klass != rcx, "used as a temp" );
+ assert( Rsub_klass != rdi, "used as a temp, restored from locals" );
// Profile the not-null value's klass.
- profile_typecheck(rcx, Rsub_klass, rdi); // blows rcx, rdi
-
- // Load the super-klass's check offset into ECX
- movl( rcx, Address(rax, sizeof(oopDesc) + Klass::super_check_offset_offset_in_bytes() ) );
- // Load from the sub-klass's super-class display list, or a 1-word cache of
- // the secondary superclass list, or a failing value with a sentinel offset
- // if the super-klass is an interface or exceptionally deep in the Java
- // hierarchy and we have to scan the secondary superclass list the hard way.
- // See if we get an immediate positive hit
- cmpptr( rax, Address(Rsub_klass,rcx,Address::times_1) );
- jcc( Assembler::equal,ok_is_subtype );
+ profile_typecheck(rcx, Rsub_klass, rdi); // blows rcx, reloads rdi
- // Check for immediate negative hit
- cmpl( rcx, sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes() );
- jcc( Assembler::notEqual, not_subtype );
- // Check for self
- cmpptr( Rsub_klass, rax );
- jcc( Assembler::equal, ok_is_subtype );
+ // Do the check.
+ check_klass_subtype(Rsub_klass, rax, rcx, ok_is_subtype); // blows rcx
- // Now do a linear scan of the secondary super-klass chain.
- movptr( rdi, Address(Rsub_klass, sizeof(oopDesc) + Klass::secondary_supers_offset_in_bytes()) );
- // EDI holds the objArrayOop of secondary supers.
- movl( rcx, Address(rdi, arrayOopDesc::length_offset_in_bytes()));// Load the array length
- // Skip to start of data; also clear Z flag incase ECX is zero
- addptr( rdi, arrayOopDesc::base_offset_in_bytes(T_OBJECT) );
- // Scan ECX words at [EDI] for occurance of EAX
- // Set NZ/Z based on last compare
- repne_scan();
- restore_locals(); // Restore EDI; Must not blow flags
- // Not equal?
- jcc( Assembler::notEqual, not_subtype );
- // Must be equal but missed in cache. Update cache.
- movptr( Address(Rsub_klass, sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes()), rax );
- jmp( ok_is_subtype );
-
- bind(not_subtype);
+ // Profile the failure of the check.
profile_typecheck_failed(rcx); // blows rcx
}
--- a/hotspot/src/cpu/x86/vm/interp_masm_x86_64.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/x86/vm/interp_masm_x86_64.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -232,65 +232,13 @@
assert(Rsub_klass != rcx, "rcx holds 2ndary super array length");
assert(Rsub_klass != rdi, "rdi holds 2ndary super array scan ptr");
- Label not_subtype, not_subtype_pop, loop;
-
// Profile the not-null value's klass.
- profile_typecheck(rcx, Rsub_klass, rdi); // blows rcx, rdi
-
- // Load the super-klass's check offset into rcx
- movl(rcx, Address(rax, sizeof(oopDesc) +
- Klass::super_check_offset_offset_in_bytes()));
- // Load from the sub-klass's super-class display list, or a 1-word
- // cache of the secondary superclass list, or a failing value with a
- // sentinel offset if the super-klass is an interface or
- // exceptionally deep in the Java hierarchy and we have to scan the
- // secondary superclass list the hard way. See if we get an
- // immediate positive hit
- cmpptr(rax, Address(Rsub_klass, rcx, Address::times_1));
- jcc(Assembler::equal,ok_is_subtype);
-
- // Check for immediate negative hit
- cmpl(rcx, sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes());
- jcc( Assembler::notEqual, not_subtype );
- // Check for self
- cmpptr(Rsub_klass, rax);
- jcc(Assembler::equal, ok_is_subtype);
+ profile_typecheck(rcx, Rsub_klass, rdi); // blows rcx, reloads rdi
- // Now do a linear scan of the secondary super-klass chain.
- movptr(rdi, Address(Rsub_klass, sizeof(oopDesc) +
- Klass::secondary_supers_offset_in_bytes()));
- // rdi holds the objArrayOop of secondary supers.
- // Load the array length
- movl(rcx, Address(rdi, arrayOopDesc::length_offset_in_bytes()));
- // Skip to start of data; also clear Z flag incase rcx is zero
- addptr(rdi, arrayOopDesc::base_offset_in_bytes(T_OBJECT));
- // Scan rcx words at [rdi] for occurance of rax
- // Set NZ/Z based on last compare
+ // Do the check.
+ check_klass_subtype(Rsub_klass, rax, rcx, ok_is_subtype); // blows rcx
- // this part is kind tricky, as values in supers array could be 32 or 64 bit wide
- // and we store values in objArrays always encoded, thus we need to encode value
- // before repne
- if (UseCompressedOops) {
- push(rax);
- encode_heap_oop(rax);
- repne_scanl();
- // Not equal?
- jcc(Assembler::notEqual, not_subtype_pop);
- // restore heap oop here for movq
- pop(rax);
- } else {
- repne_scan();
- jcc(Assembler::notEqual, not_subtype);
- }
- // Must be equal but missed in cache. Update cache.
- movptr(Address(Rsub_klass, sizeof(oopDesc) +
- Klass::secondary_super_cache_offset_in_bytes()), rax);
- jmp(ok_is_subtype);
-
- bind(not_subtype_pop);
- // restore heap oop here for miss
- if (UseCompressedOops) pop(rax);
- bind(not_subtype);
+ // Profile the failure of the check.
profile_typecheck_failed(rcx); // blows rcx
}
--- a/hotspot/src/cpu/x86/vm/interpreterRT_x86_64.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/x86/vm/interpreterRT_x86_64.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -349,7 +349,7 @@
if (_num_args < Argument::n_float_register_parameters_c-1) {
*_reg_args++ = from_obj;
- *_fp_identifiers |= (0x01 << (_num_args*2)); // mark as float
+ *_fp_identifiers |= (intptr_t)(0x01 << (_num_args*2)); // mark as float
_num_args++;
} else {
*_to++ = from_obj;
@@ -364,7 +364,7 @@
if (_num_args < Argument::n_float_register_parameters_c-1) {
*_reg_args++ = from_obj;
- *_fp_identifiers |= (0x3 << (_num_args*2)); // mark as double
+ *_fp_identifiers |= (intptr_t)(0x3 << (_num_args*2)); // mark as double
_num_args++;
} else {
*_to++ = from_obj;
--- a/hotspot/src/cpu/x86/vm/stubGenerator_x86_32.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/x86/vm/stubGenerator_x86_32.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -1310,81 +1310,51 @@
Address& super_check_offset_addr,
Address& super_klass_addr,
Register temp,
- Label* L_success_ptr, Label* L_failure_ptr) {
+ Label* L_success, Label* L_failure) {
BLOCK_COMMENT("type_check:");
Label L_fallthrough;
- bool fall_through_on_success = (L_success_ptr == NULL);
- if (fall_through_on_success) {
- L_success_ptr = &L_fallthrough;
- } else {
- L_failure_ptr = &L_fallthrough;
- }
- Label& L_success = *L_success_ptr;
- Label& L_failure = *L_failure_ptr;
+#define LOCAL_JCC(assembler_con, label_ptr) \
+ if (label_ptr != NULL) __ jcc(assembler_con, *(label_ptr)); \
+ else __ jcc(assembler_con, L_fallthrough) /*omit semi*/
+ // The following is a strange variation of the fast path which requires
+ // one less register, because needed values are on the argument stack.
+ // __ check_klass_subtype_fast_path(sub_klass, *super_klass*, temp,
+ // L_success, L_failure, NULL);
assert_different_registers(sub_klass, temp);
- // a couple of useful fields in sub_klass:
- int ss_offset = (klassOopDesc::header_size() * HeapWordSize +
- Klass::secondary_supers_offset_in_bytes());
int sc_offset = (klassOopDesc::header_size() * HeapWordSize +
Klass::secondary_super_cache_offset_in_bytes());
- Address secondary_supers_addr(sub_klass, ss_offset);
- Address super_cache_addr( sub_klass, sc_offset);
// if the pointers are equal, we are done (e.g., String[] elements)
__ cmpptr(sub_klass, super_klass_addr);
- __ jcc(Assembler::equal, L_success);
+ LOCAL_JCC(Assembler::equal, L_success);
// check the supertype display:
__ movl2ptr(temp, super_check_offset_addr);
Address super_check_addr(sub_klass, temp, Address::times_1, 0);
__ movptr(temp, super_check_addr); // load displayed supertype
__ cmpptr(temp, super_klass_addr); // test the super type
- __ jcc(Assembler::equal, L_success);
+ LOCAL_JCC(Assembler::equal, L_success);
// if it was a primary super, we can just fail immediately
__ cmpl(super_check_offset_addr, sc_offset);
- __ jcc(Assembler::notEqual, L_failure);
-
- // Now do a linear scan of the secondary super-klass chain.
- // This code is rarely used, so simplicity is a virtue here.
- inc_counter_np(SharedRuntime::_partial_subtype_ctr);
- {
- // The repne_scan instruction uses fixed registers, which we must spill.
- // (We need a couple more temps in any case.)
- __ push(rax);
- __ push(rcx);
- __ push(rdi);
- assert_different_registers(sub_klass, rax, rcx, rdi);
+ LOCAL_JCC(Assembler::notEqual, L_failure);
- __ movptr(rdi, secondary_supers_addr);
- // Load the array length.
- __ movl(rcx, Address(rdi, arrayOopDesc::length_offset_in_bytes()));
- // Skip to start of data.
- __ addptr(rdi, arrayOopDesc::base_offset_in_bytes(T_OBJECT));
- // Scan rcx words at [edi] for occurance of rax,
- // Set NZ/Z based on last compare
- __ movptr(rax, super_klass_addr);
- __ repne_scan();
+ // The repne_scan instruction uses fixed registers, which will get spilled.
+ // We happen to know this works best when super_klass is in rax.
+ Register super_klass = temp;
+ __ movptr(super_klass, super_klass_addr);
+ __ check_klass_subtype_slow_path(sub_klass, super_klass, noreg, noreg,
+ L_success, L_failure);
- // Unspill the temp. registers:
- __ pop(rdi);
- __ pop(rcx);
- __ pop(rax);
- }
- __ jcc(Assembler::notEqual, L_failure);
+ __ bind(L_fallthrough);
- // Success. Cache the super we found and proceed in triumph.
- __ movptr(temp, super_klass_addr); // note: rax, is dead
- __ movptr(super_cache_addr, temp);
+ if (L_success == NULL) { BLOCK_COMMENT("L_success:"); }
+ if (L_failure == NULL) { BLOCK_COMMENT("L_failure:"); }
- if (!fall_through_on_success)
- __ jmp(L_success);
-
- // Fall through on failure!
- __ bind(L_fallthrough);
+#undef LOCAL_JCC
}
//
--- a/hotspot/src/cpu/x86/vm/stubGenerator_x86_64.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/x86/vm/stubGenerator_x86_64.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -2091,66 +2091,9 @@
Label L_miss;
- // a couple of useful fields in sub_klass:
- int ss_offset = (klassOopDesc::header_size() * HeapWordSize +
- Klass::secondary_supers_offset_in_bytes());
- int sc_offset = (klassOopDesc::header_size() * HeapWordSize +
- Klass::secondary_super_cache_offset_in_bytes());
- Address secondary_supers_addr(sub_klass, ss_offset);
- Address super_cache_addr( sub_klass, sc_offset);
-
- // if the pointers are equal, we are done (e.g., String[] elements)
- __ cmpptr(super_klass, sub_klass);
- __ jcc(Assembler::equal, L_success);
-
- // check the supertype display:
- Address super_check_addr(sub_klass, super_check_offset, Address::times_1, 0);
- __ cmpptr(super_klass, super_check_addr); // test the super type
- __ jcc(Assembler::equal, L_success);
-
- // if it was a primary super, we can just fail immediately
- __ cmpl(super_check_offset, sc_offset);
- __ jcc(Assembler::notEqual, L_miss);
-
- // Now do a linear scan of the secondary super-klass chain.
- // The repne_scan instruction uses fixed registers, which we must spill.
- // (We need a couple more temps in any case.)
- // This code is rarely used, so simplicity is a virtue here.
- inc_counter_np(SharedRuntime::_partial_subtype_ctr);
- {
- __ push(rax);
- __ push(rcx);
- __ push(rdi);
- assert_different_registers(sub_klass, super_klass, rax, rcx, rdi);
-
- __ movptr(rdi, secondary_supers_addr);
- // Load the array length.
- __ movl(rcx, Address(rdi, arrayOopDesc::length_offset_in_bytes()));
- // Skip to start of data.
- __ addptr(rdi, arrayOopDesc::base_offset_in_bytes(T_OBJECT));
- // Scan rcx words at [rdi] for occurance of rax
- // Set NZ/Z based on last compare
- __ movptr(rax, super_klass);
- if (UseCompressedOops) {
- // Compare against compressed form. Don't need to uncompress because
- // looks like orig rax is restored in popq below.
- __ encode_heap_oop(rax);
- __ repne_scanl();
- } else {
- __ repne_scan();
- }
-
- // Unspill the temp. registers:
- __ pop(rdi);
- __ pop(rcx);
- __ pop(rax);
-
- __ jcc(Assembler::notEqual, L_miss);
- }
-
- // Success. Cache the super we found and proceed in triumph.
- __ movptr(super_cache_addr, super_klass); // note: rax is dead
- __ jmp(L_success);
+ __ check_klass_subtype_fast_path(sub_klass, super_klass, noreg, &L_success, &L_miss, NULL,
+ super_check_offset);
+ __ check_klass_subtype_slow_path(sub_klass, super_klass, noreg, noreg, &L_success, NULL);
// Fall through on failure!
__ BIND(L_miss);
--- a/hotspot/src/cpu/x86/vm/vm_version_x86.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/x86/vm/vm_version_x86.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -284,7 +284,7 @@
}
char buf[256];
- jio_snprintf(buf, sizeof(buf), "(%u cores per cpu, %u threads per core) family %d model %d stepping %d%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
+ jio_snprintf(buf, sizeof(buf), "(%u cores per cpu, %u threads per core) family %d model %d stepping %d%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
cores_per_cpu(), threads_per_core(),
cpu_family(), _model, _stepping,
(supports_cmov() ? ", cmov" : ""),
@@ -297,6 +297,7 @@
(supports_ssse3()? ", ssse3": ""),
(supports_sse4_1() ? ", sse4.1" : ""),
(supports_sse4_2() ? ", sse4.2" : ""),
+ (supports_popcnt() ? ", popcnt" : ""),
(supports_mmx_ext() ? ", mmxext" : ""),
(supports_3dnow() ? ", 3dnow" : ""),
(supports_3dnow2() ? ", 3dnowext" : ""),
@@ -410,6 +411,13 @@
}
}
+ // Use population count instruction if available.
+ if (supports_popcnt()) {
+ if (FLAG_IS_DEFAULT(UsePopCountInstruction)) {
+ UsePopCountInstruction = true;
+ }
+ }
+
assert(0 <= ReadPrefetchInstr && ReadPrefetchInstr <= 3, "invalid value");
assert(0 <= AllocatePrefetchInstr && AllocatePrefetchInstr <= 3, "invalid value");
--- a/hotspot/src/cpu/x86/vm/vm_version_x86.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/x86/vm/vm_version_x86.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -70,7 +70,9 @@
dca : 1,
sse4_1 : 1,
sse4_2 : 1,
- : 11;
+ : 2,
+ popcnt : 1,
+ : 8;
} bits;
};
@@ -179,7 +181,8 @@
CPU_SSSE3 = (1 << 9),
CPU_SSE4A = (1 << 10),
CPU_SSE4_1 = (1 << 11),
- CPU_SSE4_2 = (1 << 12)
+ CPU_SSE4_2 = (1 << 12),
+ CPU_POPCNT = (1 << 13)
} cpuFeatureFlags;
// cpuid information block. All info derived from executing cpuid with
@@ -290,6 +293,8 @@
result |= CPU_SSE4_1;
if (_cpuid_info.std_cpuid1_ecx.bits.sse4_2 != 0)
result |= CPU_SSE4_2;
+ if (_cpuid_info.std_cpuid1_ecx.bits.popcnt != 0)
+ result |= CPU_POPCNT;
return result;
}
@@ -379,6 +384,7 @@
static bool supports_ssse3() { return (_cpuFeatures & CPU_SSSE3)!= 0; }
static bool supports_sse4_1() { return (_cpuFeatures & CPU_SSE4_1) != 0; }
static bool supports_sse4_2() { return (_cpuFeatures & CPU_SSE4_2) != 0; }
+ static bool supports_popcnt() { return (_cpuFeatures & CPU_POPCNT) != 0; }
//
// AMD features
//
--- a/hotspot/src/cpu/x86/vm/x86_32.ad Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/x86/vm/x86_32.ad Wed Jul 05 16:49:40 2017 +0200
@@ -1483,16 +1483,20 @@
// main source block for now. In future, we can generalize this by
// adding a syntax that specifies the sizes of fields in an order,
// so that the adlc can build the emit functions automagically
- enc_class OpcP %{ // Emit opcode
- emit_opcode(cbuf,$primary);
- %}
-
- enc_class OpcS %{ // Emit opcode
- emit_opcode(cbuf,$secondary);
- %}
-
- enc_class Opcode(immI d8 ) %{ // Emit opcode
- emit_opcode(cbuf,$d8$$constant);
+
+ // Emit primary opcode
+ enc_class OpcP %{
+ emit_opcode(cbuf, $primary);
+ %}
+
+ // Emit secondary opcode
+ enc_class OpcS %{
+ emit_opcode(cbuf, $secondary);
+ %}
+
+ // Emit opcode directly
+ enc_class Opcode(immI d8) %{
+ emit_opcode(cbuf, $d8$$constant);
%}
enc_class SizePrefix %{
@@ -1688,26 +1692,15 @@
Register Reax = as_Register(EAX_enc); // super class
Register Recx = as_Register(ECX_enc); // killed
Register Resi = as_Register(ESI_enc); // sub class
- Label hit, miss;
+ Label miss;
MacroAssembler _masm(&cbuf);
- // Compare super with sub directly, since super is not in its own SSA.
- // The compiler used to emit this test, but we fold it in here,
- // to allow platform-specific tweaking on sparc.
- __ cmpptr(Reax, Resi);
- __ jcc(Assembler::equal, hit);
-#ifndef PRODUCT
- __ incrementl(ExternalAddress((address)&SharedRuntime::_partial_subtype_ctr));
-#endif //PRODUCT
- __ movptr(Redi,Address(Resi,sizeof(oopDesc) + Klass::secondary_supers_offset_in_bytes()));
- __ movl(Recx,Address(Redi,arrayOopDesc::length_offset_in_bytes()));
- __ addptr(Redi,arrayOopDesc::base_offset_in_bytes(T_OBJECT));
- __ repne_scan();
- __ jcc(Assembler::notEqual, miss);
- __ movptr(Address(Resi,sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes()),Reax);
- __ bind(hit);
- if( $primary )
- __ xorptr(Redi,Redi);
+ __ check_klass_subtype_slow_path(Resi, Reax, Recx, Redi,
+ NULL, &miss,
+ /*set_cond_codes:*/ true);
+ if ($primary) {
+ __ xorptr(Redi, Redi);
+ }
__ bind(miss);
%}
@@ -6387,6 +6380,67 @@
%}
+//---------- Population Count Instructions -------------------------------------
+
+instruct popCountI(eRegI dst, eRegI src) %{
+ predicate(UsePopCountInstruction);
+ match(Set dst (PopCountI src));
+
+ format %{ "POPCNT $dst, $src" %}
+ ins_encode %{
+ __ popcntl($dst$$Register, $src$$Register);
+ %}
+ ins_pipe(ialu_reg);
+%}
+
+instruct popCountI_mem(eRegI dst, memory mem) %{
+ predicate(UsePopCountInstruction);
+ match(Set dst (PopCountI (LoadI mem)));
+
+ format %{ "POPCNT $dst, $mem" %}
+ ins_encode %{
+ __ popcntl($dst$$Register, $mem$$Address);
+ %}
+ ins_pipe(ialu_reg);
+%}
+
+// Note: Long.bitCount(long) returns an int.
+instruct popCountL(eRegI dst, eRegL src, eRegI tmp, eFlagsReg cr) %{
+ predicate(UsePopCountInstruction);
+ match(Set dst (PopCountL src));
+ effect(KILL cr, TEMP tmp, TEMP dst);
+
+ format %{ "POPCNT $dst, $src.lo\n\t"
+ "POPCNT $tmp, $src.hi\n\t"
+ "ADD $dst, $tmp" %}
+ ins_encode %{
+ __ popcntl($dst$$Register, $src$$Register);
+ __ popcntl($tmp$$Register, HIGH_FROM_LOW($src$$Register));
+ __ addl($dst$$Register, $tmp$$Register);
+ %}
+ ins_pipe(ialu_reg);
+%}
+
+// Note: Long.bitCount(long) returns an int.
+instruct popCountL_mem(eRegI dst, memory mem, eRegI tmp, eFlagsReg cr) %{
+ predicate(UsePopCountInstruction);
+ match(Set dst (PopCountL (LoadL mem)));
+ effect(KILL cr, TEMP tmp, TEMP dst);
+
+ format %{ "POPCNT $dst, $mem\n\t"
+ "POPCNT $tmp, $mem+4\n\t"
+ "ADD $dst, $tmp" %}
+ ins_encode %{
+ //__ popcntl($dst$$Register, $mem$$Address$$first);
+ //__ popcntl($tmp$$Register, $mem$$Address$$second);
+ __ popcntl($dst$$Register, Address::make_raw($mem$$base, $mem$$index, $mem$$scale, $mem$$disp, false));
+ __ popcntl($tmp$$Register, Address::make_raw($mem$$base, $mem$$index, $mem$$scale, $mem$$disp + 4, false));
+ __ addl($dst$$Register, $tmp$$Register);
+ %}
+ ins_pipe(ialu_reg);
+%}
+
+
//----------Load/Store/Move Instructions---------------------------------------
//----------Load Instructions--------------------------------------------------
// Load Byte (8bit signed)
@@ -12501,15 +12555,12 @@
effect( KILL rcx, KILL cr );
ins_cost(1100); // slightly larger than the next version
- format %{ "CMPL EAX,ESI\n\t"
- "JEQ,s hit\n\t"
- "MOV EDI,[$sub+Klass::secondary_supers]\n\t"
+ format %{ "MOV EDI,[$sub+Klass::secondary_supers]\n\t"
"MOV ECX,[EDI+arrayKlass::length]\t# length to scan\n\t"
"ADD EDI,arrayKlass::base_offset\t# Skip to start of data; set NZ in case count is zero\n\t"
"REPNE SCASD\t# Scan *EDI++ for a match with EAX while CX-- != 0\n\t"
"JNE,s miss\t\t# Missed: EDI not-zero\n\t"
"MOV [$sub+Klass::secondary_super_cache],$super\t# Hit: update cache\n\t"
- "hit:\n\t"
"XOR $result,$result\t\t Hit: EDI zero\n\t"
"miss:\t" %}
@@ -12523,9 +12574,7 @@
effect( KILL rcx, KILL result );
ins_cost(1000);
- format %{ "CMPL EAX,ESI\n\t"
- "JEQ,s miss\t# Actually a hit; we are done.\n\t"
- "MOV EDI,[$sub+Klass::secondary_supers]\n\t"
+ format %{ "MOV EDI,[$sub+Klass::secondary_supers]\n\t"
"MOV ECX,[EDI+arrayKlass::length]\t# length to scan\n\t"
"ADD EDI,arrayKlass::base_offset\t# Skip to start of data; set NZ in case count is zero\n\t"
"REPNE SCASD\t# Scan *EDI++ for a match with EAX while CX-- != 0\n\t"
--- a/hotspot/src/cpu/x86/vm/x86_64.ad Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/cpu/x86/vm/x86_64.ad Wed Jul 05 16:49:40 2017 +0200
@@ -326,7 +326,6 @@
R9, R9_H,
R10, R10_H,
R11, R11_H,
- R12, R12_H,
R13, R13_H,
R14, R14_H);
@@ -340,7 +339,6 @@
R9, R9_H,
R10, R10_H,
R11, R11_H,
- R12, R12_H,
R13, R13_H,
R14, R14_H);
@@ -354,7 +352,6 @@
R9, R9_H,
R10, R10_H,
R11, R11_H,
- R12, R12_H,
R13, R13_H,
R14, R14_H);
@@ -444,9 +441,6 @@
// Singleton class for RDX long register
reg_class long_rdx_reg(RDX, RDX_H);
-// Singleton class for R12 long register
-reg_class long_r12_reg(R12, R12_H);
-
// Class for all int registers (except RSP)
reg_class int_reg(RAX,
RDX,
@@ -1842,7 +1836,9 @@
{
if (UseCompressedOops) {
st->print_cr("movl rscratch1, [j_rarg0 + oopDesc::klass_offset_in_bytes() #%d]\t", oopDesc::klass_offset_in_bytes());
- st->print_cr("leaq rscratch1, [r12_heapbase, r, Address::times_8, 0]");
+ if (Universe::narrow_oop_shift() != 0) {
+ st->print_cr("leaq rscratch1, [r12_heapbase, r, Address::times_8, 0]");
+ }
st->print_cr("cmpq rax, rscratch1\t # Inline cache check");
} else {
st->print_cr("cmpq rax, [j_rarg0 + oopDesc::klass_offset_in_bytes() #%d]\t"
@@ -1891,7 +1887,11 @@
uint MachUEPNode::size(PhaseRegAlloc* ra_) const
{
if (UseCompressedOops) {
- return OptoBreakpoint ? 19 : 20;
+ if (Universe::narrow_oop_shift() == 0) {
+ return OptoBreakpoint ? 15 : 16;
+ } else {
+ return OptoBreakpoint ? 19 : 20;
+ }
} else {
return OptoBreakpoint ? 11 : 12;
}
@@ -2575,45 +2575,13 @@
Register Rrax = as_Register(RAX_enc); // super class
Register Rrcx = as_Register(RCX_enc); // killed
Register Rrsi = as_Register(RSI_enc); // sub class
- Label hit, miss, cmiss;
+ Label miss;
+ const bool set_cond_codes = true;
MacroAssembler _masm(&cbuf);
- // Compare super with sub directly, since super is not in its own SSA.
- // The compiler used to emit this test, but we fold it in here,
- // to allow platform-specific tweaking on sparc.
- __ cmpptr(Rrax, Rrsi);
- __ jcc(Assembler::equal, hit);
-#ifndef PRODUCT
- __ lea(Rrcx, ExternalAddress((address)&SharedRuntime::_partial_subtype_ctr));
- __ incrementl(Address(Rrcx, 0));
-#endif //PRODUCT
- __ movptr(Rrdi, Address(Rrsi,
- sizeof(oopDesc) +
- Klass::secondary_supers_offset_in_bytes()));
- __ movl(Rrcx, Address(Rrdi, arrayOopDesc::length_offset_in_bytes()));
- __ addptr(Rrdi, arrayOopDesc::base_offset_in_bytes(T_OBJECT));
- if (UseCompressedOops) {
- __ encode_heap_oop(Rrax);
- __ repne_scanl();
- __ jcc(Assembler::notEqual, cmiss);
- __ decode_heap_oop(Rrax);
- __ movptr(Address(Rrsi,
- sizeof(oopDesc) +
- Klass::secondary_super_cache_offset_in_bytes()),
- Rrax);
- __ jmp(hit);
- __ bind(cmiss);
- __ decode_heap_oop(Rrax);
- __ jmp(miss);
- } else {
- __ repne_scan();
- __ jcc(Assembler::notEqual, miss);
- __ movptr(Address(Rrsi,
- sizeof(oopDesc) +
- Klass::secondary_super_cache_offset_in_bytes()),
- Rrax);
- }
- __ bind(hit);
+ __ check_klass_subtype_slow_path(Rrsi, Rrax, Rrcx, Rrdi,
+ NULL, &miss,
+ /*set_cond_codes:*/ true);
if ($primary) {
__ xorptr(Rrdi, Rrdi);
}
@@ -4906,15 +4874,6 @@
interface(REG_INTER);
%}
-
-operand r12RegL() %{
- constraint(ALLOC_IN_RC(long_r12_reg));
- match(RegL);
-
- format %{ %}
- interface(REG_INTER);
-%}
-
operand rRegN() %{
constraint(ALLOC_IN_RC(int_reg));
match(RegN);
@@ -5289,21 +5248,6 @@
%}
%}
-// Indirect Narrow Oop Plus Offset Operand
-operand indNarrowOopOffset(rRegN src, immL32 off) %{
- constraint(ALLOC_IN_RC(ptr_reg));
- match(AddP (DecodeN src) off);
-
- op_cost(10);
- format %{"[R12 + $src << 3 + $off] (compressed oop addressing)" %}
- interface(MEMORY_INTER) %{
- base(0xc); // R12
- index($src);
- scale(0x3);
- disp($off);
- %}
-%}
-
// Indirect Memory Times Scale Plus Positive Index Register Plus Offset Operand
operand indPosIndexScaleOffset(any_RegP reg, immL32 off, rRegI idx, immI2 scale)
%{
@@ -5321,6 +5265,158 @@
%}
%}
+// Indirect Narrow Oop Plus Offset Operand
+// Note: x86 architecture doesn't support "scale * index + offset" without a base
+// we can't free r12 even with Universe::narrow_oop_base() == NULL.
+operand indCompressedOopOffset(rRegN reg, immL32 off) %{
+ predicate(UseCompressedOops && (Universe::narrow_oop_shift() != 0));
+ constraint(ALLOC_IN_RC(ptr_reg));
+ match(AddP (DecodeN reg) off);
+
+ op_cost(10);
+ format %{"[R12 + $reg << 3 + $off] (compressed oop addressing)" %}
+ interface(MEMORY_INTER) %{
+ base(0xc); // R12
+ index($reg);
+ scale(0x3);
+ disp($off);
+ %}
+%}
+
+// Indirect Memory Operand
+operand indirectNarrow(rRegN reg)
+%{
+ predicate(Universe::narrow_oop_shift() == 0);
+ constraint(ALLOC_IN_RC(ptr_reg));
+ match(DecodeN reg);
+
+ format %{ "[$reg]" %}
+ interface(MEMORY_INTER) %{
+ base($reg);
+ index(0x4);
+ scale(0x0);
+ disp(0x0);
+ %}
+%}
+
+// Indirect Memory Plus Short Offset Operand
+operand indOffset8Narrow(rRegN reg, immL8 off)
+%{
+ predicate(Universe::narrow_oop_shift() == 0);
+ constraint(ALLOC_IN_RC(ptr_reg));
+ match(AddP (DecodeN reg) off);
+
+ format %{ "[$reg + $off (8-bit)]" %}
+ interface(MEMORY_INTER) %{
+ base($reg);
+ index(0x4);
+ scale(0x0);
+ disp($off);
+ %}
+%}
+
+// Indirect Memory Plus Long Offset Operand
+operand indOffset32Narrow(rRegN reg, immL32 off)
+%{
+ predicate(Universe::narrow_oop_shift() == 0);
+ constraint(ALLOC_IN_RC(ptr_reg));
+ match(AddP (DecodeN reg) off);
+
+ format %{ "[$reg + $off (32-bit)]" %}
+ interface(MEMORY_INTER) %{
+ base($reg);
+ index(0x4);
+ scale(0x0);
+ disp($off);
+ %}
+%}
+
+// Indirect Memory Plus Index Register Plus Offset Operand
+operand indIndexOffsetNarrow(rRegN reg, rRegL lreg, immL32 off)
+%{
+ predicate(Universe::narrow_oop_shift() == 0);
+ constraint(ALLOC_IN_RC(ptr_reg));
+ match(AddP (AddP (DecodeN reg) lreg) off);
+
+ op_cost(10);
+ format %{"[$reg + $off + $lreg]" %}
+ interface(MEMORY_INTER) %{
+ base($reg);
+ index($lreg);
+ scale(0x0);
+ disp($off);
+ %}
+%}
+
+// Indirect Memory Plus Index Register Plus Offset Operand
+operand indIndexNarrow(rRegN reg, rRegL lreg)
+%{
+ predicate(Universe::narrow_oop_shift() == 0);
+ constraint(ALLOC_IN_RC(ptr_reg));
+ match(AddP (DecodeN reg) lreg);
+
+ op_cost(10);
+ format %{"[$reg + $lreg]" %}
+ interface(MEMORY_INTER) %{
+ base($reg);
+ index($lreg);
+ scale(0x0);
+ disp(0x0);
+ %}
+%}
+
+// Indirect Memory Times Scale Plus Index Register
+operand indIndexScaleNarrow(rRegN reg, rRegL lreg, immI2 scale)
+%{
+ predicate(Universe::narrow_oop_shift() == 0);
+ constraint(ALLOC_IN_RC(ptr_reg));
+ match(AddP (DecodeN reg) (LShiftL lreg scale));
+
+ op_cost(10);
+ format %{"[$reg + $lreg << $scale]" %}
+ interface(MEMORY_INTER) %{
+ base($reg);
+ index($lreg);
+ scale($scale);
+ disp(0x0);
+ %}
+%}
+
+// Indirect Memory Times Scale Plus Index Register Plus Offset Operand
+operand indIndexScaleOffsetNarrow(rRegN reg, immL32 off, rRegL lreg, immI2 scale)
+%{
+ predicate(Universe::narrow_oop_shift() == 0);
+ constraint(ALLOC_IN_RC(ptr_reg));
+ match(AddP (AddP (DecodeN reg) (LShiftL lreg scale)) off);
+
+ op_cost(10);
+ format %{"[$reg + $off + $lreg << $scale]" %}
+ interface(MEMORY_INTER) %{
+ base($reg);
+ index($lreg);
+ scale($scale);
+ disp($off);
+ %}
+%}
+
+// Indirect Memory Times Scale Plus Positive Index Register Plus Offset Operand
+operand indPosIndexScaleOffsetNarrow(rRegN reg, immL32 off, rRegI idx, immI2 scale)
+%{
+ constraint(ALLOC_IN_RC(ptr_reg));
+ predicate(Universe::narrow_oop_shift() == 0 && n->in(2)->in(3)->in(1)->as_Type()->type()->is_long()->_lo >= 0);
+ match(AddP (AddP (DecodeN reg) (LShiftL (ConvI2L idx) scale)) off);
+
+ op_cost(10);
+ format %{"[$reg + $off + $idx << $scale]" %}
+ interface(MEMORY_INTER) %{
+ base($reg);
+ index($idx);
+ scale($scale);
+ disp($off);
+ %}
+%}
+
+
//----------Special Memory Operands--------------------------------------------
// Stack Slot Operand - This operand is used for loading and storing temporary
// values on the stack where a match requires a value to
@@ -5488,7 +5584,10 @@
opclass memory(indirect, indOffset8, indOffset32, indIndexOffset, indIndex,
indIndexScale, indIndexScaleOffset, indPosIndexScaleOffset,
- indNarrowOopOffset);
+ indCompressedOopOffset,
+ indirectNarrow, indOffset8Narrow, indOffset32Narrow,
+ indIndexOffsetNarrow, indIndexNarrow, indIndexScaleNarrow,
+ indIndexScaleOffsetNarrow, indPosIndexScaleOffsetNarrow);
//----------PIPELINE-----------------------------------------------------------
// Rules which define the behavior of the target architectures pipeline.
@@ -6234,9 +6333,7 @@
ins_cost(125); // XXX
format %{ "movl $dst, $mem\t# compressed ptr" %}
ins_encode %{
- Address addr = build_address($mem$$base, $mem$$index, $mem$$scale, $mem$$disp);
- Register dst = as_Register($dst$$reg);
- __ movl(dst, addr);
+ __ movl($dst$$Register, $mem$$Address);
%}
ins_pipe(ialu_reg_mem); // XXX
%}
@@ -6262,9 +6359,7 @@
ins_cost(125); // XXX
format %{ "movl $dst, $mem\t# compressed klass ptr" %}
ins_encode %{
- Address addr = build_address($mem$$base, $mem$$index, $mem$$scale, $mem$$disp);
- Register dst = as_Register($dst$$reg);
- __ movl(dst, addr);
+ __ movl($dst$$Register, $mem$$Address);
%}
ins_pipe(ialu_reg_mem); // XXX
%}
@@ -6418,6 +6513,102 @@
ins_pipe(ialu_reg_reg_fat);
%}
+instruct leaPPosIdxScaleOff(rRegP dst, indPosIndexScaleOffset mem)
+%{
+ match(Set dst mem);
+
+ ins_cost(110);
+ format %{ "leaq $dst, $mem\t# ptr posidxscaleoff" %}
+ opcode(0x8D);
+ ins_encode(REX_reg_mem_wide(dst, mem), OpcP, reg_mem(dst, mem));
+ ins_pipe(ialu_reg_reg_fat);
+%}
+
+// Load Effective Address which uses Narrow (32-bits) oop
+instruct leaPCompressedOopOffset(rRegP dst, indCompressedOopOffset mem)
+%{
+ predicate(UseCompressedOops && (Universe::narrow_oop_shift() != 0));
+ match(Set dst mem);
+
+ ins_cost(110);
+ format %{ "leaq $dst, $mem\t# ptr compressedoopoff32" %}
+ opcode(0x8D);
+ ins_encode(REX_reg_mem_wide(dst, mem), OpcP, reg_mem(dst, mem));
+ ins_pipe(ialu_reg_reg_fat);
+%}
+
+instruct leaP8Narrow(rRegP dst, indOffset8Narrow mem)
+%{
+ predicate(Universe::narrow_oop_shift() == 0);
+ match(Set dst mem);
+
+ ins_cost(110); // XXX
+ format %{ "leaq $dst, $mem\t# ptr off8narrow" %}
+ opcode(0x8D);
+ ins_encode(REX_reg_mem_wide(dst, mem), OpcP, reg_mem(dst, mem));
+ ins_pipe(ialu_reg_reg_fat);
+%}
+
+instruct leaP32Narrow(rRegP dst, indOffset32Narrow mem)
+%{
+ predicate(Universe::narrow_oop_shift() == 0);
+ match(Set dst mem);
+
+ ins_cost(110);
+ format %{ "leaq $dst, $mem\t# ptr off32narrow" %}
+ opcode(0x8D);
+ ins_encode(REX_reg_mem_wide(dst, mem), OpcP, reg_mem(dst, mem));
+ ins_pipe(ialu_reg_reg_fat);
+%}
+
+instruct leaPIdxOffNarrow(rRegP dst, indIndexOffsetNarrow mem)
+%{
+ predicate(Universe::narrow_oop_shift() == 0);
+ match(Set dst mem);
+
+ ins_cost(110);
+ format %{ "leaq $dst, $mem\t# ptr idxoffnarrow" %}
+ opcode(0x8D);
+ ins_encode(REX_reg_mem_wide(dst, mem), OpcP, reg_mem(dst, mem));
+ ins_pipe(ialu_reg_reg_fat);
+%}
+
+instruct leaPIdxScaleNarrow(rRegP dst, indIndexScaleNarrow mem)
+%{
+ predicate(Universe::narrow_oop_shift() == 0);
+ match(Set dst mem);
+
+ ins_cost(110);
+ format %{ "leaq $dst, $mem\t# ptr idxscalenarrow" %}
+ opcode(0x8D);
+ ins_encode(REX_reg_mem_wide(dst, mem), OpcP, reg_mem(dst, mem));
+ ins_pipe(ialu_reg_reg_fat);
+%}
+
+instruct leaPIdxScaleOffNarrow(rRegP dst, indIndexScaleOffsetNarrow mem)
+%{
+ predicate(Universe::narrow_oop_shift() == 0);
+ match(Set dst mem);
+
+ ins_cost(110);
+ format %{ "leaq $dst, $mem\t# ptr idxscaleoffnarrow" %}
+ opcode(0x8D);
+ ins_encode(REX_reg_mem_wide(dst, mem), OpcP, reg_mem(dst, mem));
+ ins_pipe(ialu_reg_reg_fat);
+%}
+
+instruct leaPPosIdxScaleOffNarrow(rRegP dst, indPosIndexScaleOffsetNarrow mem)
+%{
+ predicate(Universe::narrow_oop_shift() == 0);
+ match(Set dst mem);
+
+ ins_cost(110);
+ format %{ "leaq $dst, $mem\t# ptr posidxscaleoffnarrow" %}
+ opcode(0x8D);
+ ins_encode(REX_reg_mem_wide(dst, mem), OpcP, reg_mem(dst, mem));
+ ins_pipe(ialu_reg_reg_fat);
+%}
+
instruct loadConI(rRegI dst, immI src)
%{
match(Set dst src);
@@ -6528,8 +6719,7 @@
effect(KILL cr);
format %{ "xorq $dst, $src\t# compressed NULL ptr" %}
ins_encode %{
- Register dst = $dst$$Register;
- __ xorq(dst, dst);
+ __ xorq($dst$$Register, $dst$$Register);
%}
ins_pipe(ialu_reg);
%}
@@ -6541,11 +6731,10 @@
format %{ "movl $dst, $src\t# compressed ptr" %}
ins_encode %{
address con = (address)$src$$constant;
- Register dst = $dst$$Register;
if (con == NULL) {
ShouldNotReachHere();
} else {
- __ set_narrow_oop(dst, (jobject)$src$$constant);
+ __ set_narrow_oop($dst$$Register, (jobject)$src$$constant);
}
%}
ins_pipe(ialu_reg_fat); // XXX
@@ -6794,12 +6983,25 @@
ins_pipe(ialu_mem_reg);
%}
+instruct storeImmP0(memory mem, immP0 zero)
+%{
+ predicate(UseCompressedOops && (Universe::narrow_oop_base() == NULL));
+ match(Set mem (StoreP mem zero));
+
+ ins_cost(125); // XXX
+ format %{ "movq $mem, R12\t# ptr (R12_heapbase==0)" %}
+ ins_encode %{
+ __ movq($mem$$Address, r12);
+ %}
+ ins_pipe(ialu_mem_reg);
+%}
+
// Store NULL Pointer, mark word, or other simple pointer constant.
instruct storeImmP(memory mem, immP31 src)
%{
match(Set mem (StoreP mem src));
- ins_cost(125); // XXX
+ ins_cost(150); // XXX
format %{ "movq $mem, $src\t# ptr" %}
opcode(0xC7); /* C7 /0 */
ins_encode(REX_mem_wide(mem), OpcP, RM_opc_mem(0x00, mem), Con32(src));
@@ -6814,14 +7016,55 @@
ins_cost(125); // XXX
format %{ "movl $mem, $src\t# compressed ptr" %}
ins_encode %{
- Address addr = build_address($mem$$base, $mem$$index, $mem$$scale, $mem$$disp);
- Register src = as_Register($src$$reg);
- __ movl(addr, src);
+ __ movl($mem$$Address, $src$$Register);
+ %}
+ ins_pipe(ialu_mem_reg);
+%}
+
+instruct storeImmN0(memory mem, immN0 zero)
+%{
+ predicate(Universe::narrow_oop_base() == NULL);
+ match(Set mem (StoreN mem zero));
+
+ ins_cost(125); // XXX
+ format %{ "movl $mem, R12\t# compressed ptr (R12_heapbase==0)" %}
+ ins_encode %{
+ __ movl($mem$$Address, r12);
%}
ins_pipe(ialu_mem_reg);
%}
+instruct storeImmN(memory mem, immN src)
+%{
+ match(Set mem (StoreN mem src));
+
+ ins_cost(150); // XXX
+ format %{ "movl $mem, $src\t# compressed ptr" %}
+ ins_encode %{
+ address con = (address)$src$$constant;
+ if (con == NULL) {
+ __ movl($mem$$Address, (int32_t)0);
+ } else {
+ __ set_narrow_oop($mem$$Address, (jobject)$src$$constant);
+ }
+ %}
+ ins_pipe(ialu_mem_imm);
+%}
+
// Store Integer Immediate
+instruct storeImmI0(memory mem, immI0 zero)
+%{
+ predicate(UseCompressedOops && (Universe::narrow_oop_base() == NULL));
+ match(Set mem (StoreI mem zero));
+
+ ins_cost(125); // XXX
+ format %{ "movl $mem, R12\t# int (R12_heapbase==0)" %}
+ ins_encode %{
+ __ movl($mem$$Address, r12);
+ %}
+ ins_pipe(ialu_mem_reg);
+%}
+
instruct storeImmI(memory mem, immI src)
%{
match(Set mem (StoreI mem src));
@@ -6834,6 +7077,19 @@
%}
// Store Long Immediate
+instruct storeImmL0(memory mem, immL0 zero)
+%{
+ predicate(UseCompressedOops && (Universe::narrow_oop_base() == NULL));
+ match(Set mem (StoreL mem zero));
+
+ ins_cost(125); // XXX
+ format %{ "movq $mem, R12\t# long (R12_heapbase==0)" %}
+ ins_encode %{
+ __ movq($mem$$Address, r12);
+ %}
+ ins_pipe(ialu_mem_reg);
+%}
+
instruct storeImmL(memory mem, immL32 src)
%{
match(Set mem (StoreL mem src));
@@ -6846,6 +7102,19 @@
%}
// Store Short/Char Immediate
+instruct storeImmC0(memory mem, immI0 zero)
+%{
+ predicate(UseCompressedOops && (Universe::narrow_oop_base() == NULL));
+ match(Set mem (StoreC mem zero));
+
+ ins_cost(125); // XXX
+ format %{ "movw $mem, R12\t# short/char (R12_heapbase==0)" %}
+ ins_encode %{
+ __ movw($mem$$Address, r12);
+ %}
+ ins_pipe(ialu_mem_reg);
+%}
+
instruct storeImmI16(memory mem, immI16 src)
%{
predicate(UseStoreImmI16);
@@ -6859,6 +7128,19 @@
%}
// Store Byte Immediate
+instruct storeImmB0(memory mem, immI0 zero)
+%{
+ predicate(UseCompressedOops && (Universe::narrow_oop_base() == NULL));
+ match(Set mem (StoreB mem zero));
+
+ ins_cost(125); // XXX
+ format %{ "movb $mem, R12\t# short/char (R12_heapbase==0)" %}
+ ins_encode %{
+ __ movb($mem$$Address, r12);
+ %}
+ ins_pipe(ialu_mem_reg);
+%}
+
instruct storeImmB(memory mem, immI8 src)
%{
match(Set mem (StoreB mem src));
@@ -6898,6 +7180,19 @@
%}
// Store CMS card-mark Immediate
+instruct storeImmCM0_reg(memory mem, immI0 zero)
+%{
+ predicate(UseCompressedOops && (Universe::narrow_oop_base() == NULL));
+ match(Set mem (StoreCM mem zero));
+
+ ins_cost(125); // XXX
+ format %{ "movb $mem, R12\t# CMS card-mark byte 0 (R12_heapbase==0)" %}
+ ins_encode %{
+ __ movb($mem$$Address, r12);
+ %}
+ ins_pipe(ialu_mem_reg);
+%}
+
instruct storeImmCM0(memory mem, immI0 src)
%{
match(Set mem (StoreCM mem src));
@@ -6931,6 +7226,19 @@
%}
// Store immediate Float value (it is faster than store from XMM register)
+instruct storeF0(memory mem, immF0 zero)
+%{
+ predicate(UseCompressedOops && (Universe::narrow_oop_base() == NULL));
+ match(Set mem (StoreF mem zero));
+
+ ins_cost(25); // XXX
+ format %{ "movl $mem, R12\t# float 0. (R12_heapbase==0)" %}
+ ins_encode %{
+ __ movl($mem$$Address, r12);
+ %}
+ ins_pipe(ialu_mem_reg);
+%}
+
instruct storeF_imm(memory mem, immF src)
%{
match(Set mem (StoreF mem src));
@@ -6957,6 +7265,7 @@
// Store immediate double 0.0 (it is faster than store from XMM register)
instruct storeD0_imm(memory mem, immD0 src)
%{
+ predicate(!UseCompressedOops || (Universe::narrow_oop_base() != NULL));
match(Set mem (StoreD mem src));
ins_cost(50);
@@ -6966,6 +7275,19 @@
ins_pipe(ialu_mem_imm);
%}
+instruct storeD0(memory mem, immD0 zero)
+%{
+ predicate(UseCompressedOops && (Universe::narrow_oop_base() == NULL));
+ match(Set mem (StoreD mem zero));
+
+ ins_cost(25); // XXX
+ format %{ "movq $mem, R12\t# double 0. (R12_heapbase==0)" %}
+ ins_encode %{
+ __ movq($mem$$Address, r12);
+ %}
+ ins_pipe(ialu_mem_reg);
+%}
+
instruct storeSSI(stackSlotI dst, rRegI src)
%{
match(Set dst src);
@@ -7077,6 +7399,56 @@
ins_pipe( ialu_mem_reg );
%}
+
+//---------- Population Count Instructions -------------------------------------
+
+instruct popCountI(rRegI dst, rRegI src) %{
+ predicate(UsePopCountInstruction);
+ match(Set dst (PopCountI src));
+
+ format %{ "popcnt $dst, $src" %}
+ ins_encode %{
+ __ popcntl($dst$$Register, $src$$Register);
+ %}
+ ins_pipe(ialu_reg);
+%}
+
+instruct popCountI_mem(rRegI dst, memory mem) %{
+ predicate(UsePopCountInstruction);
+ match(Set dst (PopCountI (LoadI mem)));
+
+ format %{ "popcnt $dst, $mem" %}
+ ins_encode %{
+ __ popcntl($dst$$Register, $mem$$Address);
+ %}
+ ins_pipe(ialu_reg);
+%}
+
+// Note: Long.bitCount(long) returns an int.
+instruct popCountL(rRegI dst, rRegL src) %{
+ predicate(UsePopCountInstruction);
+ match(Set dst (PopCountL src));
+
+ format %{ "popcnt $dst, $src" %}
+ ins_encode %{
+ __ popcntq($dst$$Register, $src$$Register);
+ %}
+ ins_pipe(ialu_reg);
+%}
+
+// Note: Long.bitCount(long) returns an int.
+instruct popCountL_mem(rRegI dst, memory mem) %{
+ predicate(UsePopCountInstruction);
+ match(Set dst (PopCountL (LoadL mem)));
+
+ format %{ "popcnt $dst, $mem" %}
+ ins_encode %{
+ __ popcntq($dst$$Register, $mem$$Address);
+ %}
+ ins_pipe(ialu_reg);
+%}
+
+
//----------MemBar Instructions-----------------------------------------------
// Memory barrier flavors
@@ -7192,9 +7564,7 @@
effect(KILL cr);
format %{ "encode_heap_oop_not_null $dst,$src" %}
ins_encode %{
- Register s = $src$$Register;
- Register d = $dst$$Register;
- __ encode_heap_oop_not_null(d, s);
+ __ encode_heap_oop_not_null($dst$$Register, $src$$Register);
%}
ins_pipe(ialu_reg_long);
%}
@@ -7224,7 +7594,11 @@
ins_encode %{
Register s = $src$$Register;
Register d = $dst$$Register;
- __ decode_heap_oop_not_null(d, s);
+ if (s != d) {
+ __ decode_heap_oop_not_null(d, s);
+ } else {
+ __ decode_heap_oop_not_null(d);
+ }
%}
ins_pipe(ialu_reg_long);
%}
@@ -11389,8 +11763,9 @@
// This will generate a signed flags result. This should be OK since
// any compare to a zero should be eq/neq.
-instruct testP_reg_mem(rFlagsReg cr, memory op, immP0 zero)
-%{
+instruct testP_mem(rFlagsReg cr, memory op, immP0 zero)
+%{
+ predicate(!UseCompressedOops || (Universe::narrow_oop_base() != NULL));
match(Set cr (CmpP (LoadP op) zero));
ins_cost(500); // XXX
@@ -11401,13 +11776,24 @@
ins_pipe(ialu_cr_reg_imm);
%}
+instruct testP_mem_reg0(rFlagsReg cr, memory mem, immP0 zero)
+%{
+ predicate(UseCompressedOops && (Universe::narrow_oop_base() == NULL));
+ match(Set cr (CmpP (LoadP mem) zero));
+
+ format %{ "cmpq R12, $mem\t# ptr (R12_heapbase==0)" %}
+ ins_encode %{
+ __ cmpq(r12, $mem$$Address);
+ %}
+ ins_pipe(ialu_cr_reg_mem);
+%}
instruct compN_rReg(rFlagsRegU cr, rRegN op1, rRegN op2)
%{
match(Set cr (CmpN op1 op2));
format %{ "cmpl $op1, $op2\t# compressed ptr" %}
- ins_encode %{ __ cmpl(as_Register($op1$$reg), as_Register($op2$$reg)); %}
+ ins_encode %{ __ cmpl($op1$$Register, $op2$$Register); %}
ins_pipe(ialu_cr_reg_reg);
%}
@@ -11415,11 +11801,30 @@
%{
match(Set cr (CmpN src (LoadN mem)));
- ins_cost(500); // XXX
- format %{ "cmpl $src, mem\t# compressed ptr" %}
+ format %{ "cmpl $src, $mem\t# compressed ptr" %}
+ ins_encode %{
+ __ cmpl($src$$Register, $mem$$Address);
+ %}
+ ins_pipe(ialu_cr_reg_mem);
+%}
+
+instruct compN_rReg_imm(rFlagsRegU cr, rRegN op1, immN op2) %{
+ match(Set cr (CmpN op1 op2));
+
+ format %{ "cmpl $op1, $op2\t# compressed ptr" %}
ins_encode %{
- Address adr = build_address($mem$$base, $mem$$index, $mem$$scale, $mem$$disp);
- __ cmpl(as_Register($src$$reg), adr);
+ __ cmp_narrow_oop($op1$$Register, (jobject)$op2$$constant);
+ %}
+ ins_pipe(ialu_cr_reg_imm);
+%}
+
+instruct compN_mem_imm(rFlagsRegU cr, memory mem, immN src)
+%{
+ match(Set cr (CmpN src (LoadN mem)));
+
+ format %{ "cmpl $mem, $src\t# compressed ptr" %}
+ ins_encode %{
+ __ cmp_narrow_oop($mem$$Address, (jobject)$src$$constant);
%}
ins_pipe(ialu_cr_reg_mem);
%}
@@ -11432,15 +11837,27 @@
ins_pipe(ialu_cr_reg_imm);
%}
-instruct testN_reg_mem(rFlagsReg cr, memory mem, immN0 zero)
-%{
+instruct testN_mem(rFlagsReg cr, memory mem, immN0 zero)
+%{
+ predicate(Universe::narrow_oop_base() != NULL);
match(Set cr (CmpN (LoadN mem) zero));
ins_cost(500); // XXX
format %{ "testl $mem, 0xffffffff\t# compressed ptr" %}
ins_encode %{
- Address addr = build_address($mem$$base, $mem$$index, $mem$$scale, $mem$$disp);
- __ cmpl(addr, (int)0xFFFFFFFF);
+ __ cmpl($mem$$Address, (int)0xFFFFFFFF);
+ %}
+ ins_pipe(ialu_cr_reg_mem);
+%}
+
+instruct testN_mem_reg0(rFlagsReg cr, memory mem, immN0 zero)
+%{
+ predicate(Universe::narrow_oop_base() == NULL);
+ match(Set cr (CmpN (LoadN mem) zero));
+
+ format %{ "cmpl R12, $mem\t# compressed ptr (R12_heapbase==0)" %}
+ ins_encode %{
+ __ cmpl(r12, $mem$$Address);
%}
ins_pipe(ialu_cr_reg_mem);
%}
@@ -11472,7 +11889,6 @@
%{
match(Set cr (CmpL op1 (LoadL op2)));
- ins_cost(500); // XXX
format %{ "cmpq $op1, $op2" %}
opcode(0x3B); /* Opcode 3B /r */
ins_encode(REX_reg_mem_wide(op1, op2), OpcP, reg_mem(op1, op2));
@@ -11733,15 +12149,12 @@
effect(KILL rcx, KILL cr);
ins_cost(1100); // slightly larger than the next version
- format %{ "cmpq rax, rsi\n\t"
- "jeq,s hit\n\t"
- "movq rdi, [$sub + (sizeof(oopDesc) + Klass::secondary_supers_offset_in_bytes())]\n\t"
+ format %{ "movq rdi, [$sub + (sizeof(oopDesc) + Klass::secondary_supers_offset_in_bytes())]\n\t"
"movl rcx, [rdi + arrayOopDesc::length_offset_in_bytes()]\t# length to scan\n\t"
"addq rdi, arrayOopDex::base_offset_in_bytes(T_OBJECT)\t# Skip to start of data; set NZ in case count is zero\n\t"
"repne scasq\t# Scan *rdi++ for a match with rax while rcx--\n\t"
"jne,s miss\t\t# Missed: rdi not-zero\n\t"
"movq [$sub + (sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes())], $super\t# Hit: update cache\n\t"
- "hit:\n\t"
"xorq $result, $result\t\t Hit: rdi zero\n\t"
"miss:\t" %}
@@ -11756,13 +12169,10 @@
rdi_RegP result)
%{
match(Set cr (CmpP (PartialSubtypeCheck sub super) zero));
- predicate(!UseCompressedOops); // decoding oop kills condition codes
effect(KILL rcx, KILL result);
ins_cost(1000);
- format %{ "cmpq rax, rsi\n\t"
- "jeq,s miss\t# Actually a hit; we are done.\n\t"
- "movq rdi, [$sub + (sizeof(oopDesc) + Klass::secondary_supers_offset_in_bytes())]\n\t"
+ format %{ "movq rdi, [$sub + (sizeof(oopDesc) + Klass::secondary_supers_offset_in_bytes())]\n\t"
"movl rcx, [rdi + arrayOopDesc::length_offset_in_bytes()]\t# length to scan\n\t"
"addq rdi, arrayOopDex::base_offset_in_bytes(T_OBJECT)\t# Skip to start of data; set NZ in case count is zero\n\t"
"repne scasq\t# Scan *rdi++ for a match with rax while cx-- != 0\n\t"
--- a/hotspot/src/os/linux/vm/os_linux.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/os/linux/vm/os_linux.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -2269,15 +2269,16 @@
// All it does is to check if there are enough free pages
// left at the time of mmap(). This could be a potential
// problem.
-bool os::commit_memory(char* addr, size_t size) {
- uintptr_t res = (uintptr_t) ::mmap(addr, size,
- PROT_READ|PROT_WRITE|PROT_EXEC,
+bool os::commit_memory(char* addr, size_t size, bool exec) {
+ int prot = exec ? PROT_READ|PROT_WRITE|PROT_EXEC : PROT_READ|PROT_WRITE;
+ uintptr_t res = (uintptr_t) ::mmap(addr, size, prot,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0);
return res != (uintptr_t) MAP_FAILED;
}
-bool os::commit_memory(char* addr, size_t size, size_t alignment_hint) {
- return commit_memory(addr, size);
+bool os::commit_memory(char* addr, size_t size, size_t alignment_hint,
+ bool exec) {
+ return commit_memory(addr, size, exec);
}
void os::realign_memory(char *addr, size_t bytes, size_t alignment_hint) { }
@@ -2417,8 +2418,7 @@
unsigned long* os::Linux::_numa_all_nodes;
bool os::uncommit_memory(char* addr, size_t size) {
- return ::mmap(addr, size,
- PROT_READ|PROT_WRITE|PROT_EXEC,
+ return ::mmap(addr, size, PROT_NONE,
MAP_PRIVATE|MAP_FIXED|MAP_NORESERVE|MAP_ANONYMOUS, -1, 0)
!= MAP_FAILED;
}
@@ -2441,7 +2441,9 @@
flags |= MAP_FIXED;
}
- addr = (char*)::mmap(requested_addr, bytes, PROT_READ|PROT_WRITE|PROT_EXEC,
+ // Map uncommitted pages PROT_READ and PROT_WRITE, change access
+ // to PROT_EXEC if executable when we commit the page.
+ addr = (char*)::mmap(requested_addr, bytes, PROT_READ|PROT_WRITE,
flags, -1, 0);
if (addr != MAP_FAILED) {
@@ -2582,7 +2584,9 @@
#define SHM_HUGETLB 04000
#endif
-char* os::reserve_memory_special(size_t bytes) {
+char* os::reserve_memory_special(size_t bytes, char* req_addr, bool exec) {
+ // "exec" is passed in but not used. Creating the shared image for
+ // the code cache doesn't have an SHM_X executable permission to check.
assert(UseLargePages, "only for large pages");
key_t key = IPC_PRIVATE;
--- a/hotspot/src/os/solaris/dtrace/generateJvmOffsets.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/os/solaris/dtrace/generateJvmOffsets.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -249,6 +249,10 @@
printf("\n");
+ GEN_OFFS(NarrowOopStruct, _base);
+ GEN_OFFS(NarrowOopStruct, _shift);
+ printf("\n");
+
GEN_VALUE(SIZE_HeapBlockHeader, sizeof(HeapBlock::Header));
GEN_SIZE(oopDesc);
GEN_SIZE(constantPoolOopDesc);
--- a/hotspot/src/os/solaris/dtrace/jhelper.d Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/os/solaris/dtrace/jhelper.d Wed Jul 05 16:49:40 2017 +0200
@@ -46,7 +46,10 @@
extern pointer __1cJCodeCacheF_heap_;
extern pointer __1cIUniverseP_methodKlassObj_;
extern pointer __1cIUniverseO_collectedHeap_;
-extern pointer __1cIUniverseK_heap_base_;
+extern pointer __1cIUniverseL_narrow_oop_;
+#ifdef _LP64
+extern pointer UseCompressedOops;
+#endif
extern pointer __1cHnmethodG__vtbl_;
extern pointer __1cKBufferBlobG__vtbl_;
@@ -56,6 +59,7 @@
#define copyin_uint16(ADDR) *(uint16_t*) copyin((pointer) (ADDR), sizeof(uint16_t))
#define copyin_uint32(ADDR) *(uint32_t*) copyin((pointer) (ADDR), sizeof(uint32_t))
#define copyin_int32(ADDR) *(int32_t*) copyin((pointer) (ADDR), sizeof(int32_t))
+#define copyin_uint8(ADDR) *(uint8_t*) copyin((pointer) (ADDR), sizeof(uint8_t))
#define SAME(x) x
#define copyin_offset(JVM_CONST) JVM_CONST = \
@@ -132,6 +136,9 @@
copyin_offset(SIZE_oopDesc);
copyin_offset(SIZE_constantPoolOopDesc);
+ copyin_offset(OFFSET_NarrowOopStruct_base);
+ copyin_offset(OFFSET_NarrowOopStruct_shift);
+
/*
* The PC to translate is in arg0.
*/
@@ -151,9 +158,19 @@
this->Universe_methodKlassOop = copyin_ptr(&``__1cIUniverseP_methodKlassObj_);
this->CodeCache_heap_address = copyin_ptr(&``__1cJCodeCacheF_heap_);
- this->Universe_heap_base = copyin_ptr(&``__1cIUniverseK_heap_base_);
/* Reading volatile values */
+#ifdef _LP64
+ this->Use_Compressed_Oops = copyin_uint8(&``UseCompressedOops);
+#else
+ this->Use_Compressed_Oops = 0;
+#endif
+
+ this->Universe_narrow_oop_base = copyin_ptr(&``__1cIUniverseL_narrow_oop_ +
+ OFFSET_NarrowOopStruct_base);
+ this->Universe_narrow_oop_shift = copyin_int32(&``__1cIUniverseL_narrow_oop_ +
+ OFFSET_NarrowOopStruct_shift);
+
this->CodeCache_low = copyin_ptr(this->CodeCache_heap_address +
OFFSET_CodeHeap_memory + OFFSET_VirtualSpace_low);
@@ -295,7 +312,7 @@
dtrace:helper:ustack:
/!this->done && this->vtbl == this->BufferBlob_vtbl &&
-this->Universe_heap_base == NULL &&
+this->Use_Compressed_Oops == 0 &&
this->methodOopPtr > this->heap_start && this->methodOopPtr < this->heap_end/
{
MARK_LINE;
@@ -306,7 +323,7 @@
dtrace:helper:ustack:
/!this->done && this->vtbl == this->BufferBlob_vtbl &&
-this->Universe_heap_base != NULL &&
+this->Use_Compressed_Oops != 0 &&
this->methodOopPtr > this->heap_start && this->methodOopPtr < this->heap_end/
{
MARK_LINE;
@@ -314,8 +331,8 @@
* Read compressed pointer and decode heap oop, same as oop.inline.hpp
*/
this->cklass = copyin_uint32(this->methodOopPtr + OFFSET_oopDesc_metadata);
- this->klass = (uint64_t)((uintptr_t)this->Universe_heap_base +
- ((uintptr_t)this->cklass << 3));
+ this->klass = (uint64_t)((uintptr_t)this->Universe_narrow_oop_base +
+ ((uintptr_t)this->cklass << this->Universe_narrow_oop_shift));
this->methodOop = this->klass == this->Universe_methodKlassOop;
this->done = !this->methodOop;
}
--- a/hotspot/src/os/solaris/dtrace/libjvm_db.c Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/os/solaris/dtrace/libjvm_db.c Wed Jul 05 16:49:40 2017 +0200
@@ -146,13 +146,17 @@
uint64_t BufferBlob_vtbl;
uint64_t RuntimeStub_vtbl;
+ uint64_t Use_Compressed_Oops_address;
uint64_t Universe_methodKlassObj_address;
+ uint64_t Universe_narrow_oop_base_address;
+ uint64_t Universe_narrow_oop_shift_address;
uint64_t CodeCache_heap_address;
- uint64_t Universe_heap_base_address;
/* Volatiles */
+ uint8_t Use_Compressed_Oops;
uint64_t Universe_methodKlassObj;
- uint64_t Universe_heap_base;
+ uint64_t Universe_narrow_oop_base;
+ uint32_t Universe_narrow_oop_shift;
uint64_t CodeCache_low;
uint64_t CodeCache_high;
uint64_t CodeCache_segmap_low;
@@ -279,8 +283,11 @@
if (strcmp("_methodKlassObj", vmp->fieldName) == 0) {
J->Universe_methodKlassObj_address = vmp->address;
}
- if (strcmp("_heap_base", vmp->fieldName) == 0) {
- J->Universe_heap_base_address = vmp->address;
+ if (strcmp("_narrow_oop._base", vmp->fieldName) == 0) {
+ J->Universe_narrow_oop_base_address = vmp->address;
+ }
+ if (strcmp("_narrow_oop._shift", vmp->fieldName) == 0) {
+ J->Universe_narrow_oop_shift_address = vmp->address;
}
}
CHECK_FAIL(err);
@@ -298,14 +305,39 @@
return -1;
}
+static int find_symbol(jvm_agent_t* J, const char *name, uint64_t* valuep) {
+ psaddr_t sym_addr;
+ int err;
+
+ err = ps_pglobal_lookup(J->P, LIBJVM_SO, name, &sym_addr);
+ if (err != PS_OK) goto fail;
+ *valuep = sym_addr;
+ return PS_OK;
+
+ fail:
+ return err;
+}
+
static int read_volatiles(jvm_agent_t* J) {
uint64_t ptr;
int err;
+ err = find_symbol(J, "UseCompressedOops", &J->Use_Compressed_Oops_address);
+ if (err == PS_OK) {
+ err = ps_pread(J->P, J->Use_Compressed_Oops_address, &J->Use_Compressed_Oops, sizeof(uint8_t));
+ CHECK_FAIL(err);
+ } else {
+ J->Use_Compressed_Oops = 0;
+ }
+
err = read_pointer(J, J->Universe_methodKlassObj_address, &J->Universe_methodKlassObj);
CHECK_FAIL(err);
- err = read_pointer(J, J->Universe_heap_base_address, &J->Universe_heap_base);
+
+ err = read_pointer(J, J->Universe_narrow_oop_base_address, &J->Universe_narrow_oop_base);
CHECK_FAIL(err);
+ err = ps_pread(J->P, J->Universe_narrow_oop_shift_address, &J->Universe_narrow_oop_shift, sizeof(uint32_t));
+ CHECK_FAIL(err);
+
err = read_pointer(J, J->CodeCache_heap_address + OFFSET_CodeHeap_memory +
OFFSET_VirtualSpace_low, &J->CodeCache_low);
CHECK_FAIL(err);
@@ -374,19 +406,6 @@
return -1;
}
-static int find_symbol(jvm_agent_t* J, const char *name, uint64_t* valuep) {
- psaddr_t sym_addr;
- int err;
-
- err = ps_pglobal_lookup(J->P, LIBJVM_SO, name, &sym_addr);
- if (err != PS_OK) goto fail;
- *valuep = sym_addr;
- return PS_OK;
-
- fail:
- return err;
-}
-
static int find_jlong_constant(jvm_agent_t* J, const char *name, uint64_t* valuep) {
psaddr_t sym_addr;
int err = ps_pglobal_lookup(J->P, LIBJVM_SO, name, &sym_addr);
@@ -458,14 +477,14 @@
static int is_methodOop(jvm_agent_t* J, uint64_t methodOopPtr) {
uint64_t klass;
int err;
- // If heap_base is nonnull, this was a compressed oop.
- if (J->Universe_heap_base != NULL) {
+ // If UseCompressedOops, this was a compressed oop.
+ if (J->Use_Compressed_Oops != 0) {
uint32_t cklass;
err = read_compressed_pointer(J, methodOopPtr + OFFSET_oopDesc_metadata,
&cklass);
// decode heap oop, same as oop.inline.hpp
- klass = (uint64_t)((uintptr_t)J->Universe_heap_base +
- ((uintptr_t)cklass << 3));
+ klass = (uint64_t)((uintptr_t)J->Universe_narrow_oop_base +
+ ((uintptr_t)cklass << J->Universe_narrow_oop_shift));
} else {
err = read_pointer(J, methodOopPtr + OFFSET_oopDesc_metadata, &klass);
}
--- a/hotspot/src/os/solaris/vm/os_solaris.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/os/solaris/vm/os_solaris.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -2623,15 +2623,16 @@
return page_size;
}
-bool os::commit_memory(char* addr, size_t bytes) {
+bool os::commit_memory(char* addr, size_t bytes, bool exec) {
+ int prot = exec ? PROT_READ|PROT_WRITE|PROT_EXEC : PROT_READ|PROT_WRITE;
size_t size = bytes;
return
- NULL != Solaris::mmap_chunk(addr, size, MAP_PRIVATE|MAP_FIXED,
- PROT_READ | PROT_WRITE | PROT_EXEC);
-}
-
-bool os::commit_memory(char* addr, size_t bytes, size_t alignment_hint) {
- if (commit_memory(addr, bytes)) {
+ NULL != Solaris::mmap_chunk(addr, size, MAP_PRIVATE|MAP_FIXED, prot);
+}
+
+bool os::commit_memory(char* addr, size_t bytes, size_t alignment_hint,
+ bool exec) {
+ if (commit_memory(addr, bytes, exec)) {
if (UseMPSS && alignment_hint > (size_t)vm_page_size()) {
// If the large page size has been set and the VM
// is using large pages, use the large page size
@@ -3220,7 +3221,9 @@
return true;
}
-char* os::reserve_memory_special(size_t bytes) {
+char* os::reserve_memory_special(size_t bytes, char* addr, bool exec) {
+ // "exec" is passed in but not used. Creating the shared image for
+ // the code cache doesn't have an SHM_X executable permission to check.
assert(UseLargePages && UseISM, "only for ISM large pages");
size_t size = bytes;
@@ -4451,6 +4454,9 @@
int_fnP_thread_t os::Solaris::_thr_suspend_mutator;
int_fnP_thread_t os::Solaris::_thr_continue_mutator;
+// (Static) wrapper for getisax(2) call.
+os::Solaris::getisax_func_t os::Solaris::_getisax = 0;
+
// (Static) wrappers for the liblgrp API
os::Solaris::lgrp_home_func_t os::Solaris::_lgrp_home;
os::Solaris::lgrp_init_func_t os::Solaris::_lgrp_init;
@@ -4465,16 +4471,19 @@
// (Static) wrapper for meminfo() call.
os::Solaris::meminfo_func_t os::Solaris::_meminfo = 0;
-static address resolve_symbol(const char *name) {
- address addr;
-
- addr = (address) dlsym(RTLD_DEFAULT, name);
+static address resolve_symbol_lazy(const char* name) {
+ address addr = (address) dlsym(RTLD_DEFAULT, name);
if(addr == NULL) {
// RTLD_DEFAULT was not defined on some early versions of 2.5.1
addr = (address) dlsym(RTLD_NEXT, name);
- if(addr == NULL) {
- fatal(dlerror());
- }
+ }
+ return addr;
+}
+
+static address resolve_symbol(const char* name) {
+ address addr = resolve_symbol_lazy(name);
+ if(addr == NULL) {
+ fatal(dlerror());
}
return addr;
}
@@ -4673,15 +4682,26 @@
}
void os::Solaris::misc_sym_init() {
- address func = (address)dlsym(RTLD_DEFAULT, "meminfo");
- if(func == NULL) {
- func = (address) dlsym(RTLD_NEXT, "meminfo");
- }
+ address func;
+
+ // getisax
+ func = resolve_symbol_lazy("getisax");
+ if (func != NULL) {
+ os::Solaris::_getisax = CAST_TO_FN_PTR(getisax_func_t, func);
+ }
+
+ // meminfo
+ func = resolve_symbol_lazy("meminfo");
if (func != NULL) {
os::Solaris::set_meminfo(CAST_TO_FN_PTR(meminfo_func_t, func));
}
}
+uint_t os::Solaris::getisax(uint32_t* array, uint_t n) {
+ assert(_getisax != NULL, "_getisax not set");
+ return _getisax(array, n);
+}
+
// Symbol doesn't exist in Solaris 8 pset.h
#ifndef PS_MYID
#define PS_MYID -3
@@ -4716,6 +4736,10 @@
Solaris::initialize_system_info();
+ // Initialize misc. symbols as soon as possible, so we can use them
+ // if we need them.
+ Solaris::misc_sym_init();
+
int fd = open("/dev/zero", O_RDWR);
if (fd < 0) {
fatal1("os::init: cannot open /dev/zero (%s)", strerror(errno));
@@ -4857,7 +4881,6 @@
}
}
- Solaris::misc_sym_init();
Solaris::signal_sets_init();
Solaris::init_signal_mem();
Solaris::install_signal_handlers();
--- a/hotspot/src/os/solaris/vm/os_solaris.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/os/solaris/vm/os_solaris.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -1,5 +1,5 @@
/*
- * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
+ * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -72,6 +72,8 @@
LGRP_VIEW_OS /* what's available to operating system */
} lgrp_view_t;
+ typedef uint_t (*getisax_func_t)(uint32_t* array, uint_t n);
+
typedef lgrp_id_t (*lgrp_home_func_t)(idtype_t idtype, id_t id);
typedef lgrp_cookie_t (*lgrp_init_func_t)(lgrp_view_t view);
typedef int (*lgrp_fini_func_t)(lgrp_cookie_t cookie);
@@ -87,6 +89,8 @@
const uint_t info_req[], int info_count,
uint64_t outdata[], uint_t validity[]);
+ static getisax_func_t _getisax;
+
static lgrp_home_func_t _lgrp_home;
static lgrp_init_func_t _lgrp_init;
static lgrp_fini_func_t _lgrp_fini;
@@ -283,6 +287,9 @@
}
static lgrp_cookie_t lgrp_cookie() { return _lgrp_cookie; }
+ static bool supports_getisax() { return _getisax != NULL; }
+ static uint_t getisax(uint32_t* array, uint_t n);
+
static void set_meminfo(meminfo_func_t func) { _meminfo = func; }
static int meminfo (const uint64_t inaddr[], int addr_count,
const uint_t info_req[], int info_count,
--- a/hotspot/src/os/windows/vm/os_windows.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/os/windows/vm/os_windows.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -2189,7 +2189,8 @@
if (addr > thread->stack_yellow_zone_base() && addr < thread->stack_base() ) {
addr = (address)((uintptr_t)addr &
(~((uintptr_t)os::vm_page_size() - (uintptr_t)1)));
- os::commit_memory( (char *)addr, thread->stack_base() - addr );
+ os::commit_memory((char *)addr, thread->stack_base() - addr,
+ false );
return EXCEPTION_CONTINUE_EXECUTION;
}
else
@@ -2565,8 +2566,7 @@
assert((size_t)addr % os::vm_allocation_granularity() == 0,
"reserve alignment");
assert(bytes % os::vm_allocation_granularity() == 0, "reserve block size");
- char* res = (char*)VirtualAlloc(addr, bytes, MEM_RESERVE,
- PAGE_EXECUTE_READWRITE);
+ char* res = (char*)VirtualAlloc(addr, bytes, MEM_RESERVE, PAGE_READWRITE);
assert(res == NULL || addr == NULL || addr == res,
"Unexpected address from reserve.");
return res;
@@ -2595,7 +2595,7 @@
return true;
}
-char* os::reserve_memory_special(size_t bytes) {
+char* os::reserve_memory_special(size_t bytes, char* addr, bool exec) {
if (UseLargePagesIndividualAllocation) {
if (TracePageSizes && Verbose) {
@@ -2615,10 +2615,10 @@
"use -XX:-UseLargePagesIndividualAllocation to turn off");
return NULL;
}
- p_buf = (char *) VirtualAlloc(NULL,
+ p_buf = (char *) VirtualAlloc(addr,
size_of_reserve, // size of Reserve
MEM_RESERVE,
- PAGE_EXECUTE_READWRITE);
+ PAGE_READWRITE);
// If reservation failed, return NULL
if (p_buf == NULL) return NULL;
@@ -2659,7 +2659,13 @@
p_new = (char *) VirtualAlloc(next_alloc_addr,
bytes_to_rq,
MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES,
- PAGE_EXECUTE_READWRITE);
+ PAGE_READWRITE);
+ if (p_new != NULL && exec) {
+ DWORD oldprot;
+ // Windows doc says to use VirtualProtect to get execute permissions
+ VirtualProtect(next_alloc_addr, bytes_to_rq,
+ PAGE_EXECUTE_READWRITE, &oldprot);
+ }
}
if (p_new == NULL) {
@@ -2688,10 +2694,12 @@
} else {
// normal policy just allocate it all at once
DWORD flag = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES;
- char * res = (char *)VirtualAlloc(NULL,
- bytes,
- flag,
- PAGE_EXECUTE_READWRITE);
+ char * res = (char *)VirtualAlloc(NULL, bytes, flag, PAGE_READWRITE);
+ if (res != NULL && exec) {
+ DWORD oldprot;
+ // Windows doc says to use VirtualProtect to get execute permissions
+ VirtualProtect(res, bytes, PAGE_EXECUTE_READWRITE, &oldprot);
+ }
return res;
}
}
@@ -2703,7 +2711,7 @@
void os::print_statistics() {
}
-bool os::commit_memory(char* addr, size_t bytes) {
+bool os::commit_memory(char* addr, size_t bytes, bool exec) {
if (bytes == 0) {
// Don't bother the OS with noops.
return true;
@@ -2712,11 +2720,19 @@
assert(bytes % os::vm_page_size() == 0, "commit in page-sized chunks");
// Don't attempt to print anything if the OS call fails. We're
// probably low on resources, so the print itself may cause crashes.
- return VirtualAlloc(addr, bytes, MEM_COMMIT, PAGE_EXECUTE_READWRITE) != NULL;
+ bool result = VirtualAlloc(addr, bytes, MEM_COMMIT, PAGE_READWRITE) != 0;
+ if (result != NULL && exec) {
+ DWORD oldprot;
+ // Windows doc says to use VirtualProtect to get execute permissions
+ return VirtualProtect(addr, bytes, PAGE_EXECUTE_READWRITE, &oldprot) != 0;
+ } else {
+ return result;
+ }
}
-bool os::commit_memory(char* addr, size_t size, size_t alignment_hint) {
- return commit_memory(addr, size);
+bool os::commit_memory(char* addr, size_t size, size_t alignment_hint,
+ bool exec) {
+ return commit_memory(addr, size, exec);
}
bool os::uncommit_memory(char* addr, size_t bytes) {
@@ -2750,7 +2766,7 @@
// Strange enough, but on Win32 one can change protection only for committed
// memory, not a big deal anyway, as bytes less or equal than 64K
- if (!is_committed && !commit_memory(addr, bytes)) {
+ if (!is_committed && !commit_memory(addr, bytes, prot == MEM_PROT_RWX)) {
fatal("cannot commit protection page");
}
// One cannot use os::guard_memory() here, as on Win32 guard page
@@ -3248,10 +3264,10 @@
#endif
if (!UseMembar) {
- address mem_serialize_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_EXECUTE_READWRITE);
+ address mem_serialize_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READWRITE);
guarantee( mem_serialize_page != NULL, "Reserve Failed for memory serialize page");
- return_page = (address)VirtualAlloc(mem_serialize_page, os::vm_page_size(), MEM_COMMIT, PAGE_EXECUTE_READWRITE);
+ return_page = (address)VirtualAlloc(mem_serialize_page, os::vm_page_size(), MEM_COMMIT, PAGE_READWRITE);
guarantee( return_page != NULL, "Commit Failed for memory serialize page");
os::set_memory_serialize_page( mem_serialize_page );
--- a/hotspot/src/os_cpu/linux_sparc/vm/globals_linux_sparc.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/os_cpu/linux_sparc/vm/globals_linux_sparc.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -30,5 +30,7 @@
define_pd_global(uintx, JVMInvokeMethodSlack, 12288);
define_pd_global(intx, CompilerThreadStackSize, 0);
+// Only used on 64 bit platforms
+define_pd_global(uintx, HeapBaseMinAddress, 4*G);
// Only used on 64 bit Windows platforms
define_pd_global(bool, UseVectoredExceptions, false);
--- a/hotspot/src/os_cpu/linux_x86/vm/globals_linux_x86.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/os_cpu/linux_x86/vm/globals_linux_x86.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -43,5 +43,7 @@
define_pd_global(uintx, JVMInvokeMethodSlack, 8192);
+// Only used on 64 bit platforms
+define_pd_global(uintx, HeapBaseMinAddress, 2*G);
// Only used on 64 bit Windows platforms
define_pd_global(bool, UseVectoredExceptions, false);
--- a/hotspot/src/os_cpu/solaris_sparc/vm/globals_solaris_sparc.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/os_cpu/solaris_sparc/vm/globals_solaris_sparc.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -30,5 +30,9 @@
define_pd_global(uintx, JVMInvokeMethodSlack, 12288);
define_pd_global(intx, CompilerThreadStackSize, 0);
+// Only used on 64 bit platforms
+define_pd_global(uintx, HeapBaseMinAddress, 4*G);
// Only used on 64 bit Windows platforms
define_pd_global(bool, UseVectoredExceptions, false);
+
+
--- a/hotspot/src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -1,5 +1,5 @@
/*
- * Copyright 2006 Sun Microsystems, Inc. All Rights Reserved.
+ * Copyright 2006-2009 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -25,58 +25,107 @@
# include "incls/_precompiled.incl"
# include "incls/_vm_version_solaris_sparc.cpp.incl"
+# include <sys/auxv.h>
+# include <sys/auxv_SPARC.h>
# include <sys/systeminfo.h>
+// We need to keep these here as long as we have to build on Solaris
+// versions before 10.
+#ifndef SI_ARCHITECTURE_32
+#define SI_ARCHITECTURE_32 516 /* basic 32-bit SI_ARCHITECTURE */
+#endif
+
+#ifndef SI_ARCHITECTURE_64
+#define SI_ARCHITECTURE_64 517 /* basic 64-bit SI_ARCHITECTURE */
+#endif
+
+static void do_sysinfo(int si, const char* string, int* features, int mask) {
+ char tmp;
+ size_t bufsize = sysinfo(si, &tmp, 1);
+
+ // All SI defines used below must be supported.
+ guarantee(bufsize != -1, "must be supported");
+
+ char* buf = (char*) malloc(bufsize);
+
+ if (buf == NULL)
+ return;
+
+ if (sysinfo(si, buf, bufsize) == bufsize) {
+ // Compare the string.
+ if (strcmp(buf, string) == 0) {
+ *features |= mask;
+ }
+ }
+
+ free(buf);
+}
+
int VM_Version::platform_features(int features) {
- // We determine what sort of hardware we have via sysinfo(SI_ISALIST, ...).
- // This isn't the best of all possible ways because there's not enough
- // detail in the isa list it returns, but it's a bit less arcane than
- // generating assembly code and an illegal instruction handler. We used
- // to generate a getpsr trap, but that's even more arcane.
- //
- // Another possibility would be to use sysinfo(SI_PLATFORM, ...), but
- // that would require more knowledge here than is wise.
+ // getisax(2), SI_ARCHITECTURE_32, and SI_ARCHITECTURE_64 are
+ // supported on Solaris 10 and later.
+ if (os::Solaris::supports_getisax()) {
+#ifndef PRODUCT
+ if (PrintMiscellaneous && Verbose)
+ tty->print_cr("getisax(2) supported.");
+#endif
- // isalist spec via 'man isalist' as of 01-Aug-2001
+ // Check 32-bit architecture.
+ do_sysinfo(SI_ARCHITECTURE_32, "sparc", &features, v8_instructions_m);
+
+ // Check 64-bit architecture.
+ do_sysinfo(SI_ARCHITECTURE_64, "sparcv9", &features, generic_v9_m);
+
+ // Extract valid instruction set extensions.
+ uint_t av;
+ uint_t avn = os::Solaris::getisax(&av, 1);
+ assert(avn == 1, "should only return one av");
- char tmp;
- size_t bufsize = sysinfo(SI_ISALIST, &tmp, 1);
- char* buf = (char*)malloc(bufsize);
+ if (av & AV_SPARC_MUL32) features |= hardware_mul32_m;
+ if (av & AV_SPARC_DIV32) features |= hardware_div32_m;
+ if (av & AV_SPARC_FSMULD) features |= hardware_fsmuld_m;
+ if (av & AV_SPARC_V8PLUS) features |= v9_instructions_m;
+ if (av & AV_SPARC_POPC) features |= hardware_popc_m;
+ if (av & AV_SPARC_VIS) features |= vis1_instructions_m;
+ if (av & AV_SPARC_VIS2) features |= vis2_instructions_m;
+ } else {
+ // getisax(2) failed, use the old legacy code.
+#ifndef PRODUCT
+ if (PrintMiscellaneous && Verbose)
+ tty->print_cr("getisax(2) not supported.");
+#endif
+
+ char tmp;
+ size_t bufsize = sysinfo(SI_ISALIST, &tmp, 1);
+ char* buf = (char*) malloc(bufsize);
- if (buf != NULL) {
- if (sysinfo(SI_ISALIST, buf, bufsize) == bufsize) {
- // Figure out what kind of sparc we have
- char *sparc_string = strstr(buf, "sparc");
- if (sparc_string != NULL) { features |= v8_instructions_m;
- if (sparc_string[5] == 'v') {
- if (sparc_string[6] == '8') {
- if (sparc_string[7] == '-') features |= hardware_int_muldiv_m;
- else if (sparc_string[7] == 'p') features |= generic_v9_m;
- else features |= generic_v8_m;
- } else if (sparc_string[6] == '9') features |= generic_v9_m;
+ if (buf != NULL) {
+ if (sysinfo(SI_ISALIST, buf, bufsize) == bufsize) {
+ // Figure out what kind of sparc we have
+ char *sparc_string = strstr(buf, "sparc");
+ if (sparc_string != NULL) { features |= v8_instructions_m;
+ if (sparc_string[5] == 'v') {
+ if (sparc_string[6] == '8') {
+ if (sparc_string[7] == '-') { features |= hardware_mul32_m;
+ features |= hardware_div32_m;
+ } else if (sparc_string[7] == 'p') features |= generic_v9_m;
+ else features |= generic_v8_m;
+ } else if (sparc_string[6] == '9') features |= generic_v9_m;
+ }
+ }
+
+ // Check for visualization instructions
+ char *vis = strstr(buf, "vis");
+ if (vis != NULL) { features |= vis1_instructions_m;
+ if (vis[3] == '2') features |= vis2_instructions_m;
}
}
-
- // Check for visualization instructions
- char *vis = strstr(buf, "vis");
- if (vis != NULL) { features |= vis1_instructions_m;
- if (vis[3] == '2') features |= vis2_instructions_m;
- }
+ free(buf);
}
- free(buf);
}
- bufsize = sysinfo(SI_MACHINE, &tmp, 1);
- buf = (char*)malloc(bufsize);
-
- if (buf != NULL) {
- if (sysinfo(SI_MACHINE, buf, bufsize) == bufsize) {
- if (strstr(buf, "sun4v") != NULL) {
- features |= sun4v_m;
- }
- }
- free(buf);
- }
+ // Determine the machine type.
+ do_sysinfo(SI_MACHINE, "sun4v", &features, sun4v_m);
return features;
}
--- a/hotspot/src/os_cpu/solaris_x86/vm/globals_solaris_x86.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/os_cpu/solaris_x86/vm/globals_solaris_x86.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -46,5 +46,7 @@
define_pd_global(intx, CompilerThreadStackSize, 0);
+// Only used on 64 bit platforms
+define_pd_global(uintx, HeapBaseMinAddress, 256*M);
// Only used on 64 bit Windows platforms
define_pd_global(bool, UseVectoredExceptions, false);
--- a/hotspot/src/os_cpu/windows_x86/vm/globals_windows_x86.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/os_cpu/windows_x86/vm/globals_windows_x86.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -45,5 +45,7 @@
define_pd_global(uintx, JVMInvokeMethodSlack, 8192);
+// Only used on 64 bit platforms
+define_pd_global(uintx, HeapBaseMinAddress, 2*G);
// Only used on 64 bit Windows platforms
define_pd_global(bool, UseVectoredExceptions, false);
--- a/hotspot/src/os_cpu/windows_x86/vm/unwind_windows_x86.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/os_cpu/windows_x86/vm/unwind_windows_x86.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -68,6 +68,9 @@
PVOID HandlerData;
} DISPATCHER_CONTEXT, *PDISPATCHER_CONTEXT;
+#if MSC_VER < 1500
+
+/* Not needed for VS2008 compiler, comes from winnt.h. */
typedef EXCEPTION_DISPOSITION (*PEXCEPTION_ROUTINE) (
IN PEXCEPTION_RECORD ExceptionRecord,
IN ULONG64 EstablisherFrame,
@@ -75,4 +78,6 @@
IN OUT PDISPATCHER_CONTEXT DispatcherContext
);
+#endif
+
#endif // AMD64
--- a/hotspot/src/share/tools/MakeDeps/WinGammaPlatformVC7.java Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/tools/MakeDeps/WinGammaPlatformVC7.java Wed Jul 05 16:49:40 2017 +0200
@@ -27,6 +27,8 @@
public class WinGammaPlatformVC7 extends WinGammaPlatform {
+ String projectVersion() {return "7.10";};
+
public void writeProjectFile(String projectFileName, String projectName,
Vector allConfigs) throws IOException {
System.out.println();
@@ -40,7 +42,7 @@
"VisualStudioProject",
new String[] {
"ProjectType", "Visual C++",
- "Version", "7.10",
+ "Version", projectVersion(),
"Name", projectName,
"ProjectGUID", "{8822CB5C-1C41-41C2-8493-9F6E1994338B}",
"SccProjectName", "",
@@ -417,7 +419,9 @@
new String[] {
"Name", "VCPreLinkEventTool",
"Description", BuildConfig.getFieldString(null, "PrelinkDescription"),
- "CommandLine", cfg.expandFormat(BuildConfig.getFieldString(null, "PrelinkCommand").replace('\t', '\n'))
+ //Caution: String.replace(String,String) is available from JDK5 onwards only
+ "CommandLine", cfg.expandFormat(BuildConfig.getFieldString(null, "PrelinkCommand").replace
+ ("\t", "
"))
}
);
@@ -542,25 +546,41 @@
}
class CompilerInterfaceVC7 extends CompilerInterface {
- Vector getBaseCompilerFlags(Vector defines, Vector includes, String outDir) {
- Vector rv = new Vector();
+ void getBaseCompilerFlags_common(Vector defines, Vector includes, String outDir,Vector rv) {
// advanced M$ IDE (2003) can only recognize name if it's first or
// second attribute in the tag - go guess
addAttr(rv, "Name", "VCCLCompilerTool");
addAttr(rv, "AdditionalIncludeDirectories", Util.join(",", includes));
- addAttr(rv, "PreprocessorDefinitions", Util.join(";", defines).replace("\"","""));
- addAttr(rv, "UsePrecompiledHeader", "3");
- addAttr(rv, "PrecompiledHeaderThrough", "incls"+Util.sep+"_precompiled.incl");
+ addAttr(rv, "PreprocessorDefinitions",
+ Util.join(";", defines).replace("\"","""));
+ addAttr(rv, "PrecompiledHeaderThrough",
+ "incls"+Util.sep+"_precompiled.incl");
addAttr(rv, "PrecompiledHeaderFile", outDir+Util.sep+"vm.pch");
addAttr(rv, "AssemblerListingLocation", outDir);
addAttr(rv, "ObjectFile", outDir+Util.sep);
addAttr(rv, "ProgramDataBaseFileName", outDir+Util.sep+"vm.pdb");
+ // Set /nologo optin
addAttr(rv, "SuppressStartupBanner", "TRUE");
+ // Surpass the default /Tc or /Tp. 0 is compileAsDefault
addAttr(rv, "CompileAs", "0");
+ // Set /W3 option. 3 is warningLevel_3
addAttr(rv, "WarningLevel", "3");
+ // Set /WX option,
addAttr(rv, "WarnAsError", "TRUE");
+ // Set /GS option
addAttr(rv, "BufferSecurityCheck", "FALSE");
+ // Set /Zi option. 3 is debugEnabled
+ addAttr(rv, "DebugInformationFormat", "3");
+ }
+ Vector getBaseCompilerFlags(Vector defines, Vector includes, String outDir) {
+ Vector rv = new Vector();
+
+ getBaseCompilerFlags_common(defines,includes, outDir, rv);
+ // Set /Yu option. 3 is pchUseUsingSpecific
+ // Note: Starting VC8 pchUseUsingSpecific is 2 !!!
+ addAttr(rv, "UsePrecompiledHeader", "3");
+ // Set /EHsc- option
addAttr(rv, "ExceptionHandling", "FALSE");
return rv;
@@ -579,27 +599,39 @@
"/export:jio_vsnprintf ");
addAttr(rv, "AdditionalDependencies", "Wsock32.lib winmm.lib");
addAttr(rv, "OutputFile", outDll);
+ // Set /INCREMENTAL option. 1 is linkIncrementalNo
addAttr(rv, "LinkIncremental", "1");
addAttr(rv, "SuppressStartupBanner", "TRUE");
addAttr(rv, "ModuleDefinitionFile", outDir+Util.sep+"vm.def");
addAttr(rv, "ProgramDatabaseFile", outDir+Util.sep+"vm.pdb");
+ // Set /SUBSYSTEM option. 2 is subSystemWindows
addAttr(rv, "SubSystem", "2");
addAttr(rv, "BaseAddress", "0x8000000");
addAttr(rv, "ImportLibrary", outDir+Util.sep+"jvm.lib");
+ // Set /MACHINE option. 1 is machineX86
addAttr(rv, "TargetMachine", "1");
return rv;
}
+ void getDebugCompilerFlags_common(String opt,Vector rv) {
+
+ // Set /On option
+ addAttr(rv, "Optimization", opt);
+ // Set /FR option. 1 is brAllInfo
+ addAttr(rv, "BrowseInformation", "1");
+ addAttr(rv, "BrowseInformationFile", "$(IntDir)" + Util.sep);
+ // Set /MD option. 2 is rtMultiThreadedDLL
+ addAttr(rv, "RuntimeLibrary", "2");
+ // Set /Oy- option
+ addAttr(rv, "OmitFramePointers", "FALSE");
+
+ }
+
Vector getDebugCompilerFlags(String opt) {
Vector rv = new Vector();
- addAttr(rv, "Optimization", opt);
- addAttr(rv, "OptimizeForProcessor", "1");
- addAttr(rv, "DebugInformationFormat", "3");
- addAttr(rv, "RuntimeLibrary", "2");
- addAttr(rv, "BrowseInformation", "1");
- addAttr(rv, "BrowseInformationFile", "$(IntDir)" + Util.sep);
+ getDebugCompilerFlags_common(opt,rv);
return rv;
}
@@ -607,18 +639,29 @@
Vector getDebugLinkerFlags() {
Vector rv = new Vector();
- addAttr(rv, "GenerateDebugInformation", "TRUE");
+ addAttr(rv, "GenerateDebugInformation", "TRUE"); // == /DEBUG option
return rv;
}
+ void getProductCompilerFlags_common(Vector rv) {
+ // Set /O2 option. 2 is optimizeMaxSpeed
+ addAttr(rv, "Optimization", "2");
+ // Set /Oy- option
+ addAttr(rv, "OmitFramePointers", "FALSE");
+ }
+
Vector getProductCompilerFlags() {
Vector rv = new Vector();
- addAttr(rv, "Optimization", "2");
+ getProductCompilerFlags_common(rv);
+ // Set /Ob option. 1 is expandOnlyInline
addAttr(rv, "InlineFunctionExpansion", "1");
+ // Set /GF option.
addAttr(rv, "StringPooling", "TRUE");
+ // Set /MD option. 2 is rtMultiThreadedDLL
addAttr(rv, "RuntimeLibrary", "2");
+ // Set /Gy option
addAttr(rv, "EnableFunctionLevelLinking", "TRUE");
return rv;
@@ -627,7 +670,9 @@
Vector getProductLinkerFlags() {
Vector rv = new Vector();
+ // Set /OPT:REF option. 2 is optReferences
addAttr(rv, "OptimizeReferences", "2");
+ // Set /OPT:optFolding option. 2 is optFolding
addAttr(rv, "EnableCOMDATFolding", "2");
return rv;
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/tools/MakeDeps/WinGammaPlatformVC8.java Wed Jul 05 16:49:40 2017 +0200
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2005-2007 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+import java.io.*;
+import java.util.*;
+
+public class WinGammaPlatformVC8 extends WinGammaPlatformVC7 {
+
+ String projectVersion() {return "8.00";};
+
+}
+
+class CompilerInterfaceVC8 extends CompilerInterfaceVC7 {
+
+ Vector getBaseCompilerFlags(Vector defines, Vector includes, String outDir) {
+ Vector rv = new Vector();
+
+ getBaseCompilerFlags_common(defines,includes, outDir, rv);
+ // Set /Yu option. 2 is pchUseUsingSpecific
+ addAttr(rv, "UsePrecompiledHeader", "2");
+ // Set /EHsc- option. 0 is cppExceptionHandlingNo
+ addAttr(rv, "ExceptionHandling", "0");
+
+ return rv;
+ }
+
+
+ Vector getDebugCompilerFlags(String opt) {
+ Vector rv = new Vector();
+
+ getDebugCompilerFlags_common(opt,rv);
+
+ return rv;
+ }
+
+ Vector getProductCompilerFlags() {
+ Vector rv = new Vector();
+
+ getProductCompilerFlags_common(rv);
+
+ return rv;
+ }
+
+
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/tools/MakeDeps/WinGammaPlatformVC9.java Wed Jul 05 16:49:40 2017 +0200
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2005-2007 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+import java.io.*;
+import java.util.*;
+
+public class WinGammaPlatformVC9 extends WinGammaPlatformVC8 {
+
+ String projectVersion() {return "9.00";};
+
+}
+
+class CompilerInterfaceVC9 extends CompilerInterfaceVC8 {
+}
--- a/hotspot/src/share/vm/adlc/adlc.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/adlc/adlc.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -44,7 +44,7 @@
#error "Something is wrong with the detection of MSC_VER in the makefiles"
#endif
-#if _MSC_VER >= 1400 && !defined(_WIN64)
+#if _MSC_VER >= 1400
#define strdup _strdup
#endif
--- a/hotspot/src/share/vm/asm/assembler.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/asm/assembler.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -321,16 +321,19 @@
bool MacroAssembler::needs_explicit_null_check(intptr_t offset) {
// Exception handler checks the nmethod's implicit null checks table
// only when this method returns false.
- if (UseCompressedOops) {
+#ifdef _LP64
+ if (UseCompressedOops && Universe::narrow_oop_base() != NULL) {
+ assert (Universe::heap() != NULL, "java heap should be initialized");
// The first page after heap_base is unmapped and
// the 'offset' is equal to [heap_base + offset] for
// narrow oop implicit null checks.
- uintptr_t heap_base = (uintptr_t)Universe::heap_base();
- if ((uintptr_t)offset >= heap_base) {
+ uintptr_t base = (uintptr_t)Universe::narrow_oop_base();
+ if ((uintptr_t)offset >= base) {
// Normalize offset for the next check.
- offset = (intptr_t)(pointer_delta((void*)offset, (void*)heap_base, 1));
+ offset = (intptr_t)(pointer_delta((void*)offset, (void*)base, 1));
}
}
+#endif
return offset < 0 || os::vm_page_size() <= offset;
}
--- a/hotspot/src/share/vm/ci/ciMethodBlocks.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/ci/ciMethodBlocks.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -284,6 +284,11 @@
//
int ex_start = handler->start();
int ex_end = handler->limit();
+ // ensure a block at the start of exception range and start of following code
+ (void) make_block_at(ex_start);
+ if (ex_end < _code_size)
+ (void) make_block_at(ex_end);
+
if (eb->is_handler()) {
// Extend old handler exception range to cover additional range.
int old_ex_start = eb->ex_start_bci();
@@ -295,10 +300,6 @@
eb->clear_exception_handler(); // Reset exception information
}
eb->set_exception_range(ex_start, ex_end);
- // ensure a block at the start of exception range and start of following code
- (void) make_block_at(ex_start);
- if (ex_end < _code_size)
- (void) make_block_at(ex_end);
}
}
--- a/hotspot/src/share/vm/classfile/classFileParser.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/classfile/classFileParser.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -2747,9 +2747,10 @@
super_klass(),
methods(),
access_flags,
- class_loader(),
- class_name(),
- local_interfaces());
+ class_loader,
+ class_name,
+ local_interfaces(),
+ CHECK_(nullHandle));
// Size of Java itable (in words)
itable_size = access_flags.is_interface() ? 0 : klassItable::compute_itable_size(transitive_interfaces);
@@ -3229,7 +3230,7 @@
// print out the superclass.
const char * from = Klass::cast(this_klass())->external_name();
if (this_klass->java_super() != NULL) {
- tty->print("RESOLVE %s %s\n", from, instanceKlass::cast(this_klass->java_super())->external_name());
+ tty->print("RESOLVE %s %s (super)\n", from, instanceKlass::cast(this_klass->java_super())->external_name());
}
// print out each of the interface classes referred to by this class.
objArrayHandle local_interfaces(THREAD, this_klass->local_interfaces());
@@ -3239,7 +3240,7 @@
klassOop k = klassOop(local_interfaces->obj_at(i));
instanceKlass* to_class = instanceKlass::cast(k);
const char * to = to_class->external_name();
- tty->print("RESOLVE %s %s\n", from, to);
+ tty->print("RESOLVE %s %s (interface)\n", from, to);
}
}
}
--- a/hotspot/src/share/vm/classfile/vmSymbols.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/classfile/vmSymbols.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -284,6 +284,7 @@
template(value_name, "value") \
template(frontCacheEnabled_name, "frontCacheEnabled") \
template(stringCacheEnabled_name, "stringCacheEnabled") \
+ template(bitCount_name, "bitCount") \
\
/* non-intrinsic name/signature pairs: */ \
template(register_method_name, "register") \
@@ -304,6 +305,7 @@
template(double_long_signature, "(D)J") \
template(double_double_signature, "(D)D") \
template(int_float_signature, "(I)F") \
+ template(long_int_signature, "(J)I") \
template(long_long_signature, "(J)J") \
template(long_double_signature, "(J)D") \
template(byte_signature, "B") \
@@ -376,7 +378,7 @@
template(unknown_class_name, "<Unknown>") \
\
/* used to identify class loaders handling parallel class loading */ \
- template(parallelCapable_name, "parallelLockMap;") \
+ template(parallelCapable_name, "parallelLockMap") \
\
/* JVM monitoring and management support */ \
template(java_lang_StackTraceElement_array, "[Ljava/lang/StackTraceElement;") \
@@ -507,6 +509,10 @@
do_name( doubleToLongBits_name, "doubleToLongBits") \
do_intrinsic(_longBitsToDouble, java_lang_Double, longBitsToDouble_name, long_double_signature, F_S) \
do_name( longBitsToDouble_name, "longBitsToDouble") \
+ \
+ do_intrinsic(_bitCount_i, java_lang_Integer, bitCount_name, int_int_signature, F_S) \
+ do_intrinsic(_bitCount_l, java_lang_Long, bitCount_name, long_int_signature, F_S) \
+ \
do_intrinsic(_reverseBytes_i, java_lang_Integer, reverseBytes_name, int_int_signature, F_S) \
do_name( reverseBytes_name, "reverseBytes") \
do_intrinsic(_reverseBytes_l, java_lang_Long, reverseBytes_name, long_long_signature, F_S) \
@@ -696,7 +702,6 @@
do_signature(putShort_raw_signature, "(JS)V") \
do_signature(getChar_raw_signature, "(J)C") \
do_signature(putChar_raw_signature, "(JC)V") \
- do_signature(getInt_raw_signature, "(J)I") \
do_signature(putInt_raw_signature, "(JI)V") \
do_alias(getLong_raw_signature, /*(J)J*/ long_long_signature) \
do_alias(putLong_raw_signature, /*(JJ)V*/ long_long_void_signature) \
@@ -713,7 +718,7 @@
do_intrinsic(_getByte_raw, sun_misc_Unsafe, getByte_name, getByte_raw_signature, F_RN) \
do_intrinsic(_getShort_raw, sun_misc_Unsafe, getShort_name, getShort_raw_signature, F_RN) \
do_intrinsic(_getChar_raw, sun_misc_Unsafe, getChar_name, getChar_raw_signature, F_RN) \
- do_intrinsic(_getInt_raw, sun_misc_Unsafe, getInt_name, getInt_raw_signature, F_RN) \
+ do_intrinsic(_getInt_raw, sun_misc_Unsafe, getInt_name, long_int_signature, F_RN) \
do_intrinsic(_getLong_raw, sun_misc_Unsafe, getLong_name, getLong_raw_signature, F_RN) \
do_intrinsic(_getFloat_raw, sun_misc_Unsafe, getFloat_name, getFloat_raw_signature, F_RN) \
do_intrinsic(_getDouble_raw, sun_misc_Unsafe, getDouble_name, getDouble_raw_signature, F_RN) \
--- a/hotspot/src/share/vm/gc_implementation/g1/concurrentG1Refine.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/gc_implementation/g1/concurrentG1Refine.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -145,14 +145,9 @@
if (G1RSBarrierUseQueue) {
DirtyCardQueueSet& dcqs = JavaThread::dirty_card_queue_set();
dcqs.abandon_logs();
- if (_cg1rThread->do_traversal()) {
- _pya = PYA_restart;
- } else {
- _cg1rThread->set_do_traversal(true);
- // Reset the post-yield actions.
- _pya = PYA_continue;
- _last_pya = PYA_continue;
- }
+ // Reset the post-yield actions.
+ _pya = PYA_continue;
+ _last_pya = PYA_continue;
} else {
_pya = PYA_restart;
}
--- a/hotspot/src/share/vm/gc_implementation/g1/concurrentMark.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/gc_implementation/g1/concurrentMark.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -107,7 +107,7 @@
#ifndef PRODUCT
bool CMBitMapRO::covers(ReservedSpace rs) const {
// assert(_bm.map() == _virtual_space.low(), "map inconsistency");
- assert(((size_t)_bm.size() * (1 << _shifter)) == _bmWordSize,
+ assert(((size_t)_bm.size() * (size_t)(1 << _shifter)) == _bmWordSize,
"size inconsistency");
return _bmStartWord == (HeapWord*)(rs.base()) &&
_bmWordSize == rs.size()>>LogHeapWordSize;
@@ -1232,7 +1232,16 @@
if (!_final && _regions_done == 0)
_start_vtime_sec = os::elapsedVTime();
- if (hr->continuesHumongous()) return false;
+ if (hr->continuesHumongous()) {
+ HeapRegion* hum_start = hr->humongous_start_region();
+ // If the head region of the humongous region has been determined
+ // to be alive, then all the tail regions should be marked
+ // such as well.
+ if (_region_bm->at(hum_start->hrs_index())) {
+ _region_bm->par_at_put(hr->hrs_index(), 1);
+ }
+ return false;
+ }
HeapWord* nextTop = hr->next_top_at_mark_start();
HeapWord* start = hr->top_at_conc_mark_count();
--- a/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -786,6 +786,12 @@
}
}
+void G1CollectedHeap::abandon_gc_alloc_regions() {
+ // first, make sure that the GC alloc region list is empty (it should!)
+ assert(_gc_alloc_region_list == NULL, "invariant");
+ release_gc_alloc_regions(true /* totally */);
+}
+
class PostMCRemSetClearClosure: public HeapRegionClosure {
ModRefBarrierSet* _mr_bs;
public:
@@ -914,6 +920,7 @@
// Make sure we'll choose a new allocation region afterwards.
abandon_cur_alloc_region();
+ abandon_gc_alloc_regions();
assert(_cur_alloc_region == NULL, "Invariant.");
g1_rem_set()->as_HRInto_G1RemSet()->cleanupHRRS();
tear_down_region_lists();
@@ -954,6 +961,7 @@
if (VerifyAfterGC && total_collections() >= VerifyGCStartAt) {
HandleMark hm; // Discard invalid handles created during verification
gclog_or_tty->print(" VerifyAfterGC:");
+ prepare_for_verify();
Universe::verify(false);
}
NOT_PRODUCT(ref_processor()->verify_no_references_recorded());
@@ -1306,7 +1314,7 @@
}
void G1CollectedHeap::shrink(size_t shrink_bytes) {
- release_gc_alloc_regions();
+ release_gc_alloc_regions(true /* totally */);
tear_down_region_lists(); // We will rebuild them in a moment.
shrink_helper(shrink_bytes);
rebuild_region_lists();
@@ -1345,8 +1353,7 @@
_gc_time_stamp(0),
_surviving_young_words(NULL),
_in_cset_fast_test(NULL),
- _in_cset_fast_test_base(NULL)
-{
+ _in_cset_fast_test_base(NULL) {
_g1h = this; // To catch bugs.
if (_process_strong_tasks == NULL || !_process_strong_tasks->valid()) {
vm_exit_during_initialization("Failed necessary allocation.");
@@ -1371,9 +1378,19 @@
}
for (int ap = 0; ap < GCAllocPurposeCount; ++ap) {
- _gc_alloc_regions[ap] = NULL;
- _gc_alloc_region_counts[ap] = 0;
- }
+ _gc_alloc_regions[ap] = NULL;
+ _gc_alloc_region_counts[ap] = 0;
+ _retained_gc_alloc_regions[ap] = NULL;
+ // by default, we do not retain a GC alloc region for each ap;
+ // we'll override this, when appropriate, below
+ _retain_gc_alloc_region[ap] = false;
+ }
+
+ // We will try to remember the last half-full tenured region we
+ // allocated to at the end of a collection so that we can re-use it
+ // during the next collection.
+ _retain_gc_alloc_region[GCAllocForTenured] = true;
+
guarantee(_task_queues != NULL, "task_queues allocation failure.");
}
@@ -1405,9 +1422,34 @@
// Reserve the maximum.
PermanentGenerationSpec* pgs = collector_policy()->permanent_generation();
// Includes the perm-gen.
+
+ const size_t total_reserved = max_byte_size + pgs->max_size();
+ char* addr = Universe::preferred_heap_base(total_reserved, Universe::UnscaledNarrowOop);
+
ReservedSpace heap_rs(max_byte_size + pgs->max_size(),
HeapRegion::GrainBytes,
- false /*ism*/);
+ false /*ism*/, addr);
+
+ if (UseCompressedOops) {
+ if (addr != NULL && !heap_rs.is_reserved()) {
+ // Failed to reserve at specified address - the requested memory
+ // region is taken already, for example, by 'java' launcher.
+ // Try again to reserver heap higher.
+ addr = Universe::preferred_heap_base(total_reserved, Universe::ZeroBasedNarrowOop);
+ ReservedSpace heap_rs0(total_reserved, HeapRegion::GrainBytes,
+ false /*ism*/, addr);
+ if (addr != NULL && !heap_rs0.is_reserved()) {
+ // Failed to reserve at specified address again - give up.
+ addr = Universe::preferred_heap_base(total_reserved, Universe::HeapBasedNarrowOop);
+ assert(addr == NULL, "");
+ ReservedSpace heap_rs1(total_reserved, HeapRegion::GrainBytes,
+ false /*ism*/, addr);
+ heap_rs = heap_rs1;
+ } else {
+ heap_rs = heap_rs0;
+ }
+ }
+ }
if (!heap_rs.is_reserved()) {
vm_exit_during_initialization("Could not reserve enough space for object heap");
@@ -2119,15 +2161,7 @@
bool doHeapRegion(HeapRegion* r) {
guarantee(_par || r->claim_value() == HeapRegion::InitialClaimValue,
"Should be unclaimed at verify points.");
- if (r->isHumongous()) {
- if (r->startsHumongous()) {
- // Verify the single H object.
- oop(r->bottom())->verify();
- size_t word_sz = oop(r->bottom())->size();
- guarantee(r->top() == r->bottom() + word_sz,
- "Only one object in a humongous region");
- }
- } else {
+ if (!r->continuesHumongous()) {
VerifyObjsInRegionClosure not_dead_yet_cl(r);
r->verify(_allow_dirty);
r->object_iterate(¬_dead_yet_cl);
@@ -2179,6 +2213,7 @@
_g1h(g1h), _allow_dirty(allow_dirty) { }
void work(int worker_i) {
+ HandleMark hm;
VerifyRegionClosure blk(_allow_dirty, true);
_g1h->heap_region_par_iterate_chunked(&blk, worker_i,
HeapRegion::ParVerifyClaimValue);
@@ -2644,7 +2679,7 @@
popular_region->set_popular_pending(false);
}
- release_gc_alloc_regions();
+ release_gc_alloc_regions(false /* totally */);
cleanup_surviving_young_words();
@@ -2697,6 +2732,7 @@
if (VerifyAfterGC && total_collections() >= VerifyGCStartAt) {
HandleMark hm; // Discard invalid handles created during verification
gclog_or_tty->print(" VerifyAfterGC:");
+ prepare_for_verify();
Universe::verify(false);
}
@@ -2735,6 +2771,10 @@
void G1CollectedHeap::set_gc_alloc_region(int purpose, HeapRegion* r) {
assert(purpose >= 0 && purpose < GCAllocPurposeCount, "invalid purpose");
+ // make sure we don't call set_gc_alloc_region() multiple times on
+ // the same region
+ assert(r == NULL || !r->is_gc_alloc_region(),
+ "shouldn't already be a GC alloc region");
HeapWord* original_top = NULL;
if (r != NULL)
original_top = r->top();
@@ -2824,6 +2864,12 @@
while (_gc_alloc_region_list != NULL) {
HeapRegion* r = _gc_alloc_region_list;
assert(r->is_gc_alloc_region(), "Invariant.");
+ // We need HeapRegion::oops_on_card_seq_iterate_careful() to work on
+ // newly allocated data in order to be able to apply deferred updates
+ // before the GC is done for verification purposes (i.e to allow
+ // G1HRRSFlushLogBuffersOnVerify). It's safe thing to do after the
+ // collection.
+ r->ContiguousSpace::set_saved_mark();
_gc_alloc_region_list = r->next_gc_alloc_region();
r->set_next_gc_alloc_region(NULL);
r->set_is_gc_alloc_region(false);
@@ -2851,23 +2897,55 @@
}
void G1CollectedHeap::get_gc_alloc_regions() {
+ // First, let's check that the GC alloc region list is empty (it should)
+ assert(_gc_alloc_region_list == NULL, "invariant");
+
for (int ap = 0; ap < GCAllocPurposeCount; ++ap) {
+ assert(_gc_alloc_regions[ap] == NULL, "invariant");
+
// Create new GC alloc regions.
- HeapRegion* alloc_region = _gc_alloc_regions[ap];
- // Clear this alloc region, so that in case it turns out to be
- // unacceptable, we end up with no allocation region, rather than a bad
- // one.
- _gc_alloc_regions[ap] = NULL;
- if (alloc_region == NULL || alloc_region->in_collection_set()) {
- // Can't re-use old one. Allocate a new one.
+ HeapRegion* alloc_region = _retained_gc_alloc_regions[ap];
+ _retained_gc_alloc_regions[ap] = NULL;
+
+ if (alloc_region != NULL) {
+ assert(_retain_gc_alloc_region[ap], "only way to retain a GC region");
+
+ // let's make sure that the GC alloc region is not tagged as such
+ // outside a GC operation
+ assert(!alloc_region->is_gc_alloc_region(), "sanity");
+
+ if (alloc_region->in_collection_set() ||
+ alloc_region->top() == alloc_region->end() ||
+ alloc_region->top() == alloc_region->bottom()) {
+ // we will discard the current GC alloc region if it's in the
+ // collection set (it can happen!), if it's already full (no
+ // point in using it), or if it's empty (this means that it
+ // was emptied during a cleanup and it should be on the free
+ // list now).
+
+ alloc_region = NULL;
+ }
+ }
+
+ if (alloc_region == NULL) {
+ // we will get a new GC alloc region
alloc_region = newAllocRegionWithExpansion(ap, 0);
}
+
if (alloc_region != NULL) {
+ assert(_gc_alloc_regions[ap] == NULL, "pre-condition");
set_gc_alloc_region(ap, alloc_region);
}
+
+ assert(_gc_alloc_regions[ap] == NULL ||
+ _gc_alloc_regions[ap]->is_gc_alloc_region(),
+ "the GC alloc region should be tagged as such");
+ assert(_gc_alloc_regions[ap] == NULL ||
+ _gc_alloc_regions[ap] == _gc_alloc_region_list,
+ "the GC alloc region should be the same as the GC alloc list head");
}
// Set alternative regions for allocation purposes that have reached
- // thier limit.
+ // their limit.
for (int ap = 0; ap < GCAllocPurposeCount; ++ap) {
GCAllocPurpose alt_purpose = g1_policy()->alternative_purpose(ap);
if (_gc_alloc_regions[ap] == NULL && alt_purpose != ap) {
@@ -2877,27 +2955,55 @@
assert(check_gc_alloc_regions(), "alloc regions messed up");
}
-void G1CollectedHeap::release_gc_alloc_regions() {
+void G1CollectedHeap::release_gc_alloc_regions(bool totally) {
// We keep a separate list of all regions that have been alloc regions in
- // the current collection pause. Forget that now.
+ // the current collection pause. Forget that now. This method will
+ // untag the GC alloc regions and tear down the GC alloc region
+ // list. It's desirable that no regions are tagged as GC alloc
+ // outside GCs.
forget_alloc_region_list();
// The current alloc regions contain objs that have survived
// collection. Make them no longer GC alloc regions.
for (int ap = 0; ap < GCAllocPurposeCount; ++ap) {
HeapRegion* r = _gc_alloc_regions[ap];
- if (r != NULL && r->is_empty()) {
- {
+ _retained_gc_alloc_regions[ap] = NULL;
+
+ if (r != NULL) {
+ // we retain nothing on _gc_alloc_regions between GCs
+ set_gc_alloc_region(ap, NULL);
+ _gc_alloc_region_counts[ap] = 0;
+
+ if (r->is_empty()) {
+ // we didn't actually allocate anything in it; let's just put
+ // it on the free list
MutexLockerEx x(ZF_mon, Mutex::_no_safepoint_check_flag);
r->set_zero_fill_complete();
put_free_region_on_list_locked(r);
+ } else if (_retain_gc_alloc_region[ap] && !totally) {
+ // retain it so that we can use it at the beginning of the next GC
+ _retained_gc_alloc_regions[ap] = r;
}
}
- // set_gc_alloc_region will also NULLify all aliases to the region
- set_gc_alloc_region(ap, NULL);
- _gc_alloc_region_counts[ap] = 0;
- }
-}
+ }
+}
+
+#ifndef PRODUCT
+// Useful for debugging
+
+void G1CollectedHeap::print_gc_alloc_regions() {
+ gclog_or_tty->print_cr("GC alloc regions");
+ for (int ap = 0; ap < GCAllocPurposeCount; ++ap) {
+ HeapRegion* r = _gc_alloc_regions[ap];
+ if (r == NULL) {
+ gclog_or_tty->print_cr(" %2d : "PTR_FORMAT, ap, NULL);
+ } else {
+ gclog_or_tty->print_cr(" %2d : "PTR_FORMAT" "SIZE_FORMAT,
+ ap, r->bottom(), r->used());
+ }
+ }
+}
+#endif // PRODUCT
void G1CollectedHeap::init_for_evac_failure(OopsInHeapRegionClosure* cl) {
_drain_in_progress = false;
@@ -3658,7 +3764,9 @@
CardTableModRefBS* ctbs() { return _ct_bs; }
void immediate_rs_update(HeapRegion* from, oop* p, int tid) {
- _g1_rem->par_write_ref(from, p, tid);
+ if (!from->is_survivor()) {
+ _g1_rem->par_write_ref(from, p, tid);
+ }
}
void deferred_rs_update(HeapRegion* from, oop* p, int tid) {
--- a/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -172,7 +172,6 @@
NumAPIs = HeapRegion::MaxAge
};
-
// The one and only G1CollectedHeap, so static functions can find it.
static G1CollectedHeap* _g1h;
@@ -217,11 +216,20 @@
// Postcondition: cur_alloc_region == NULL.
void abandon_cur_alloc_region();
+ void abandon_gc_alloc_regions();
// The to-space memory regions into which objects are being copied during
// a GC.
HeapRegion* _gc_alloc_regions[GCAllocPurposeCount];
size_t _gc_alloc_region_counts[GCAllocPurposeCount];
+ // These are the regions, one per GCAllocPurpose, that are half-full
+ // at the end of a collection and that we want to reuse during the
+ // next collection.
+ HeapRegion* _retained_gc_alloc_regions[GCAllocPurposeCount];
+ // This specifies whether we will keep the last half-full region at
+ // the end of a collection so that it can be reused during the next
+ // collection (this is specified per GCAllocPurpose)
+ bool _retain_gc_alloc_region[GCAllocPurposeCount];
// A list of the regions that have been set to be alloc regions in the
// current collection.
@@ -589,8 +597,21 @@
// Ensure that the relevant gc_alloc regions are set.
void get_gc_alloc_regions();
- // We're done with GC alloc regions; release them, as appropriate.
- void release_gc_alloc_regions();
+ // We're done with GC alloc regions. We are going to tear down the
+ // gc alloc list and remove the gc alloc tag from all the regions on
+ // that list. However, we will also retain the last (i.e., the one
+ // that is half-full) GC alloc region, per GCAllocPurpose, for
+ // possible reuse during the next collection, provided
+ // _retain_gc_alloc_region[] indicates that it should be the
+ // case. Said regions are kept in the _retained_gc_alloc_regions[]
+ // array. If the parameter totally is set, we will not retain any
+ // regions, irrespective of what _retain_gc_alloc_region[]
+ // indicates.
+ void release_gc_alloc_regions(bool totally);
+#ifndef PRODUCT
+ // Useful for debugging.
+ void print_gc_alloc_regions();
+#endif // !PRODUCT
// ("Weak") Reference processing support
ReferenceProcessor* _ref_processor;
--- a/hotspot/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -1087,6 +1087,7 @@
assert(_g1->used_regions() == _g1->recalculate_used_regions(),
"sanity");
+ assert(_g1->used() == _g1->recalculate_used(), "sanity");
double s_w_t_ms = (start_time_sec - _stop_world_start) * 1000.0;
_all_stop_world_times_ms->add(s_w_t_ms);
@@ -1636,7 +1637,9 @@
double obj_copy_time = avg_value(_par_last_obj_copy_times_ms);
double termination_time = avg_value(_par_last_termination_times_ms);
- double parallel_other_time;
+ double parallel_other_time = _cur_collection_par_time_ms -
+ (update_rs_time + ext_root_scan_time + mark_stack_scan_time +
+ scan_only_time + scan_rs_time + obj_copy_time + termination_time);
if (update_stats) {
MainBodySummary* body_summary = summary->main_body_summary();
guarantee(body_summary != NULL, "should not be null!");
@@ -1655,9 +1658,6 @@
body_summary->record_parallel_time_ms(_cur_collection_par_time_ms);
body_summary->record_clear_ct_time_ms(_cur_clear_ct_time_ms);
body_summary->record_termination_time_ms(termination_time);
- parallel_other_time = _cur_collection_par_time_ms -
- (update_rs_time + ext_root_scan_time + mark_stack_scan_time +
- scan_only_time + scan_rs_time + obj_copy_time + termination_time);
body_summary->record_parallel_other_time_ms(parallel_other_time);
}
body_summary->record_mark_closure_time_ms(_mark_closure_time_ms);
@@ -1802,8 +1802,10 @@
gclog_or_tty->print_cr("]");
_all_pause_times_ms->add(elapsed_ms);
- summary->record_total_time_ms(elapsed_ms);
- summary->record_other_time_ms(other_time_ms);
+ if (update_stats) {
+ summary->record_total_time_ms(elapsed_ms);
+ summary->record_other_time_ms(other_time_ms);
+ }
for (int i = 0; i < _aux_num; ++i)
if (_cur_aux_times_set[i])
_all_aux_times_ms[i].add(_cur_aux_times_ms[i]);
--- a/hotspot/src/share/vm/gc_implementation/g1/g1RemSet.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1RemSet.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -502,15 +502,26 @@
}
if (ParallelGCThreads > 0) {
- // This is a temporary change to serialize the update and scanning
- // of remembered sets. There are some race conditions when this is
- // done in parallel and they are causing failures. When we resolve
- // said race conditions, we'll revert back to parallel remembered
- // set updating and scanning. See CRs 6677707 and 6677708.
- if (worker_i == 0) {
+ // The two flags below were introduced temporarily to serialize
+ // the updating and scanning of remembered sets. There are some
+ // race conditions when these two operations are done in parallel
+ // and they are causing failures. When we resolve said race
+ // conditions, we'll revert back to parallel remembered set
+ // updating and scanning. See CRs 6677707 and 6677708.
+ if (G1EnableParallelRSetUpdating || (worker_i == 0)) {
updateRS(worker_i);
scanNewRefsRS(oc, worker_i);
+ } else {
+ _g1p->record_update_rs_start_time(worker_i, os::elapsedTime());
+ _g1p->record_update_rs_processed_buffers(worker_i, 0.0);
+ _g1p->record_update_rs_time(worker_i, 0.0);
+ _g1p->record_scan_new_refs_time(worker_i, 0.0);
+ }
+ if (G1EnableParallelRSetScanning || (worker_i == 0)) {
scanRS(oc, worker_i);
+ } else {
+ _g1p->record_scan_rs_start_time(worker_i, os::elapsedTime());
+ _g1p->record_scan_rs_time(worker_i, 0.0);
}
} else {
assert(worker_i == 0, "invariant");
@@ -716,8 +727,7 @@
bool doHeapRegion(HeapRegion* r) {
if (!r->in_collection_set() &&
!r->continuesHumongous() &&
- !r->is_young() &&
- !r->is_survivor()) {
+ !r->is_young()) {
_update_rs_oop_cl.set_from(r);
UpdateRSObjectClosure update_rs_obj_cl(&_update_rs_oop_cl);
@@ -854,7 +864,7 @@
// before all the cards on the region are dirtied. This is unlikely,
// and it doesn't happen often, but it can happen. So, the extra
// check below filters out those cards.
- if (r->is_young() || r->is_survivor()) {
+ if (r->is_young()) {
return;
}
// While we are processing RSet buffers during the collection, we
@@ -1025,7 +1035,9 @@
}
}
void HRInto_G1RemSet::prepare_for_verify() {
- if (G1HRRSFlushLogBuffersOnVerify && VerifyBeforeGC && !_g1->full_collection()) {
+ if (G1HRRSFlushLogBuffersOnVerify &&
+ (VerifyBeforeGC || VerifyAfterGC)
+ && !_g1->full_collection()) {
cleanupHRRS();
_g1->set_refine_cte_cl_concurrency(false);
if (SafepointSynchronize::is_at_safepoint()) {
@@ -1036,5 +1048,7 @@
_cg1r->set_use_cache(false);
updateRS(0);
_cg1r->set_use_cache(cg1r_use_cache);
+
+ assert(JavaThread::dirty_card_queue_set().completed_buffers_num() == 0, "All should be consumed");
}
}
--- a/hotspot/src/share/vm/gc_implementation/g1/g1_globals.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1_globals.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -295,6 +295,14 @@
\
product(uintx, G1FixedSurvivorSpaceSize, 0, \
"If non-0 is the size of the G1 survivor space, " \
- "otherwise SurvivorRatio is used to determine the size")
+ "otherwise SurvivorRatio is used to determine the size") \
+ \
+ experimental(bool, G1EnableParallelRSetUpdating, false, \
+ "Enables the parallelization of remembered set updating " \
+ "during evacuation pauses") \
+ \
+ experimental(bool, G1EnableParallelRSetScanning, false, \
+ "Enables the parallelization of remembered set scanning " \
+ "during evacuation pauses")
G1_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG, DECLARE_MANAGEABLE_FLAG, DECLARE_PRODUCT_RW_FLAG)
--- a/hotspot/src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -508,7 +508,7 @@
typedef PosParPRT* PosParPRTPtr;
if (_max_fine_entries == 0) {
assert(_mod_max_fine_entries_mask == 0, "Both or none.");
- _max_fine_entries = (1 << G1LogRSRegionEntries);
+ _max_fine_entries = (size_t)(1 << G1LogRSRegionEntries);
_mod_max_fine_entries_mask = _max_fine_entries - 1;
#if SAMPLE_FOR_EVICTION
assert(_fine_eviction_sample_size == 0
--- a/hotspot/src/share/vm/gc_implementation/parNew/parGCAllocBuffer.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/gc_implementation/parNew/parGCAllocBuffer.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -63,9 +63,8 @@
// return NULL.
HeapWord* allocate(size_t word_sz) {
HeapWord* res = _top;
- HeapWord* new_top = _top + word_sz;
- if (new_top <= _end) {
- _top = new_top;
+ if (pointer_delta(_end, _top) >= word_sz) {
+ _top = _top + word_sz;
return res;
} else {
return NULL;
@@ -75,10 +74,9 @@
// Undo the last allocation in the buffer, which is required to be of the
// "obj" of the given "word_sz".
void undo_allocation(HeapWord* obj, size_t word_sz) {
- assert(_top - word_sz >= _bottom
- && _top - word_sz == obj,
- "Bad undo_allocation");
- _top = _top - word_sz;
+ assert(pointer_delta(_top, _bottom) >= word_sz, "Bad undo");
+ assert(pointer_delta(_top, obj) == word_sz, "Bad undo");
+ _top = obj;
}
// The total (word) size of the buffer, including both allocated and
--- a/hotspot/src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -104,12 +104,38 @@
og_min_size, og_max_size,
yg_min_size, yg_max_size);
+ const size_t total_reserved = pg_max_size + og_max_size + yg_max_size;
+ char* addr = Universe::preferred_heap_base(total_reserved, Universe::UnscaledNarrowOop);
+
// The main part of the heap (old gen + young gen) can often use a larger page
// size than is needed or wanted for the perm gen. Use the "compound
// alignment" ReservedSpace ctor to avoid having to use the same page size for
// all gens.
+
ReservedHeapSpace heap_rs(pg_max_size, pg_align, og_max_size + yg_max_size,
- og_align);
+ og_align, addr);
+
+ if (UseCompressedOops) {
+ if (addr != NULL && !heap_rs.is_reserved()) {
+ // Failed to reserve at specified address - the requested memory
+ // region is taken already, for example, by 'java' launcher.
+ // Try again to reserver heap higher.
+ addr = Universe::preferred_heap_base(total_reserved, Universe::ZeroBasedNarrowOop);
+ ReservedHeapSpace heap_rs0(pg_max_size, pg_align, og_max_size + yg_max_size,
+ og_align, addr);
+ if (addr != NULL && !heap_rs0.is_reserved()) {
+ // Failed to reserve at specified address again - give up.
+ addr = Universe::preferred_heap_base(total_reserved, Universe::HeapBasedNarrowOop);
+ assert(addr == NULL, "");
+ ReservedHeapSpace heap_rs1(pg_max_size, pg_align, og_max_size + yg_max_size,
+ og_align, addr);
+ heap_rs = heap_rs1;
+ } else {
+ heap_rs = heap_rs0;
+ }
+ }
+ }
+
os::trace_page_sizes("ps perm", pg_min_size, pg_max_size, pg_page_sz,
heap_rs.base(), pg_max_size);
os::trace_page_sizes("ps main", og_min_size + yg_min_size,
--- a/hotspot/src/share/vm/includeDB_core Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/includeDB_core Wed Jul 05 16:49:40 2017 +0200
@@ -4598,6 +4598,7 @@
vm_version_<arch>.hpp globals_extension.hpp
vm_version_<arch>.hpp vm_version.hpp
+vm_version_<os_arch>.cpp os.hpp
vm_version_<os_arch>.cpp vm_version_<arch>.hpp
vmreg.cpp assembler.hpp
--- a/hotspot/src/share/vm/interpreter/invocationCounter.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/interpreter/invocationCounter.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -47,6 +47,8 @@
// executed many more times before re-entering the VM.
int old_count = count();
int new_count = MIN2(old_count, (int) (CompileThreshold / 2));
+ // prevent from going to zero, to distinguish from never-executed methods
+ if (new_count == 0) new_count = 1;
if (old_count != new_count) set(state(), new_count);
}
--- a/hotspot/src/share/vm/memory/blockOffsetTable.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/memory/blockOffsetTable.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -235,7 +235,7 @@
};
static size_t power_to_cards_back(uint i) {
- return 1 << (LogBase * i);
+ return (size_t)(1 << (LogBase * i));
}
static size_t power_to_words_back(uint i) {
return power_to_cards_back(i) * N_words;
--- a/hotspot/src/share/vm/memory/genCollectedHeap.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/memory/genCollectedHeap.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -218,6 +218,31 @@
heap_address -= total_reserved;
} else {
heap_address = NULL; // any address will do.
+ if (UseCompressedOops) {
+ heap_address = Universe::preferred_heap_base(total_reserved, Universe::UnscaledNarrowOop);
+ *_total_reserved = total_reserved;
+ *_n_covered_regions = n_covered_regions;
+ *heap_rs = ReservedHeapSpace(total_reserved, alignment,
+ UseLargePages, heap_address);
+
+ if (heap_address != NULL && !heap_rs->is_reserved()) {
+ // Failed to reserve at specified address - the requested memory
+ // region is taken already, for example, by 'java' launcher.
+ // Try again to reserver heap higher.
+ heap_address = Universe::preferred_heap_base(total_reserved, Universe::ZeroBasedNarrowOop);
+ *heap_rs = ReservedHeapSpace(total_reserved, alignment,
+ UseLargePages, heap_address);
+
+ if (heap_address != NULL && !heap_rs->is_reserved()) {
+ // Failed to reserve at specified address again - give up.
+ heap_address = Universe::preferred_heap_base(total_reserved, Universe::HeapBasedNarrowOop);
+ assert(heap_address == NULL, "");
+ *heap_rs = ReservedHeapSpace(total_reserved, alignment,
+ UseLargePages, heap_address);
+ }
+ }
+ return heap_address;
+ }
}
*_total_reserved = total_reserved;
--- a/hotspot/src/share/vm/memory/heap.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/memory/heap.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -112,7 +112,7 @@
const size_t rs_align = page_size == (size_t) os::vm_page_size() ? 0 :
MAX2(page_size, granularity);
- ReservedSpace rs(r_size, rs_align, rs_align > 0);
+ ReservedCodeSpace rs(r_size, rs_align, rs_align > 0);
os::trace_page_sizes("code heap", committed_size, reserved_size, page_size,
rs.base(), rs.size());
if (!_memory.initialize(rs, c_size)) {
--- a/hotspot/src/share/vm/memory/universe.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/memory/universe.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -99,7 +99,8 @@
size_t Universe::_heap_used_at_last_gc = 0;
CollectedHeap* Universe::_collectedHeap = NULL;
-address Universe::_heap_base = NULL;
+
+NarrowOopStruct Universe::_narrow_oop = { NULL, 0, true };
void Universe::basic_type_classes_do(void f(klassOop)) {
@@ -729,6 +730,53 @@
return JNI_OK;
}
+// Choose the heap base address and oop encoding mode
+// when compressed oops are used:
+// Unscaled - Use 32-bits oops without encoding when
+// NarrowOopHeapBaseMin + heap_size < 4Gb
+// ZeroBased - Use zero based compressed oops with encoding when
+// NarrowOopHeapBaseMin + heap_size < 32Gb
+// HeapBased - Use compressed oops with heap base + encoding.
+
+// 4Gb
+static const uint64_t NarrowOopHeapMax = (uint64_t(max_juint) + 1);
+// 32Gb
+static const uint64_t OopEncodingHeapMax = NarrowOopHeapMax << LogMinObjAlignmentInBytes;
+
+char* Universe::preferred_heap_base(size_t heap_size, NARROW_OOP_MODE mode) {
+#ifdef _LP64
+ if (UseCompressedOops) {
+ assert(mode == UnscaledNarrowOop ||
+ mode == ZeroBasedNarrowOop ||
+ mode == HeapBasedNarrowOop, "mode is invalid");
+
+ const size_t total_size = heap_size + HeapBaseMinAddress;
+ if (total_size <= OopEncodingHeapMax && (mode != HeapBasedNarrowOop)) {
+ if (total_size <= NarrowOopHeapMax && (mode == UnscaledNarrowOop) &&
+ (Universe::narrow_oop_shift() == 0)) {
+ // Use 32-bits oops without encoding and
+ // place heap's top on the 4Gb boundary
+ return (char*)(NarrowOopHeapMax - heap_size);
+ } else {
+ // Can't reserve with NarrowOopShift == 0
+ Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes);
+ if (mode == UnscaledNarrowOop ||
+ mode == ZeroBasedNarrowOop && total_size <= NarrowOopHeapMax) {
+ // Use zero based compressed oops with encoding and
+ // place heap's top on the 32Gb boundary in case
+ // total_size > 4Gb or failed to reserve below 4Gb.
+ return (char*)(OopEncodingHeapMax - heap_size);
+ }
+ }
+ } else {
+ // Can't reserve below 32Gb.
+ Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes);
+ }
+ }
+#endif
+ return NULL; // also return NULL (don't care) for 32-bit VM
+}
+
jint Universe::initialize_heap() {
if (UseParallelGC) {
@@ -773,6 +821,8 @@
if (status != JNI_OK) {
return status;
}
+
+#ifdef _LP64
if (UseCompressedOops) {
// Subtract a page because something can get allocated at heap base.
// This also makes implicit null checking work, because the
@@ -780,8 +830,49 @@
// See needs_explicit_null_check.
// Only set the heap base for compressed oops because it indicates
// compressed oops for pstack code.
- Universe::_heap_base = Universe::heap()->base() - os::vm_page_size();
+ if (PrintCompressedOopsMode) {
+ tty->cr();
+ tty->print("heap address: "PTR_FORMAT, Universe::heap()->base());
+ }
+ if ((uint64_t)Universe::heap()->reserved_region().end() > OopEncodingHeapMax) {
+ // Can't reserve heap below 32Gb.
+ Universe::set_narrow_oop_base(Universe::heap()->base() - os::vm_page_size());
+ Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes);
+ if (PrintCompressedOopsMode) {
+ tty->print(", Compressed Oops with base: "PTR_FORMAT, Universe::narrow_oop_base());
+ }
+ } else {
+ Universe::set_narrow_oop_base(0);
+ if (PrintCompressedOopsMode) {
+ tty->print(", zero based Compressed Oops");
+ }
+#ifdef _WIN64
+ if (!Universe::narrow_oop_use_implicit_null_checks()) {
+ // Don't need guard page for implicit checks in indexed addressing
+ // mode with zero based Compressed Oops.
+ Universe::set_narrow_oop_use_implicit_null_checks(true);
+ }
+#endif // _WIN64
+ if((uint64_t)Universe::heap()->reserved_region().end() > NarrowOopHeapMax) {
+ // Can't reserve heap below 4Gb.
+ Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes);
+ } else {
+ assert(Universe::narrow_oop_shift() == 0, "use unscaled narrow oop");
+ if (PrintCompressedOopsMode) {
+ tty->print(", 32-bits Oops");
+ }
+ }
+ }
+ if (PrintCompressedOopsMode) {
+ tty->cr();
+ tty->cr();
+ }
}
+ assert(Universe::narrow_oop_base() == (Universe::heap()->base() - os::vm_page_size()) ||
+ Universe::narrow_oop_base() == NULL, "invalid value");
+ assert(Universe::narrow_oop_shift() == LogMinObjAlignmentInBytes ||
+ Universe::narrow_oop_shift() == 0, "invalid value");
+#endif
// We will never reach the CATCH below since Exceptions::_throw will cause
// the VM to exit if an exception is thrown during initialization
--- a/hotspot/src/share/vm/memory/universe.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/memory/universe.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -90,6 +90,19 @@
methodOop get_methodOop();
};
+// For UseCompressedOops.
+struct NarrowOopStruct {
+ // Base address for oop-within-java-object materialization.
+ // NULL if using wide oops or zero based narrow oops.
+ address _base;
+ // Number of shift bits for encoding/decoding narrow oops.
+ // 0 if using wide oops or zero based unscaled narrow oops,
+ // LogMinObjAlignmentInBytes otherwise.
+ int _shift;
+ // Generate code with implicit null checks for narrow oops.
+ bool _use_implicit_null_checks;
+};
+
class Universe: AllStatic {
// Ugh. Universe is much too friendly.
@@ -181,9 +194,9 @@
// The particular choice of collected heap.
static CollectedHeap* _collectedHeap;
- // Base address for oop-within-java-object materialization.
- // NULL if using wide oops. Doubles as heap oop null value.
- static address _heap_base;
+
+ // For UseCompressedOops.
+ static struct NarrowOopStruct _narrow_oop;
// array of dummy objects used with +FullGCAlot
debug_only(static objArrayOop _fullgc_alot_dummy_array;)
@@ -328,8 +341,25 @@
static CollectedHeap* heap() { return _collectedHeap; }
// For UseCompressedOops
- static address heap_base() { return _heap_base; }
- static address* heap_base_addr() { return &_heap_base; }
+ static address* narrow_oop_base_addr() { return &_narrow_oop._base; }
+ static address narrow_oop_base() { return _narrow_oop._base; }
+ static int narrow_oop_shift() { return _narrow_oop._shift; }
+ static void set_narrow_oop_base(address base) { _narrow_oop._base = base; }
+ static void set_narrow_oop_shift(int shift) { _narrow_oop._shift = shift; }
+ static bool narrow_oop_use_implicit_null_checks() { return _narrow_oop._use_implicit_null_checks; }
+ static void set_narrow_oop_use_implicit_null_checks(bool use) { _narrow_oop._use_implicit_null_checks = use; }
+ // Narrow Oop encoding mode:
+ // 0 - Use 32-bits oops without encoding when
+ // NarrowOopHeapBaseMin + heap_size < 4Gb
+ // 1 - Use zero based compressed oops with encoding when
+ // NarrowOopHeapBaseMin + heap_size < 32Gb
+ // 2 - Use compressed oops with heap base + encoding.
+ enum NARROW_OOP_MODE {
+ UnscaledNarrowOop = 0,
+ ZeroBasedNarrowOop = 1,
+ HeapBasedNarrowOop = 2
+ };
+ static char* preferred_heap_base(size_t heap_size, NARROW_OOP_MODE mode);
// Historic gc information
static size_t get_heap_capacity_at_last_gc() { return _heap_capacity_at_last_gc; }
--- a/hotspot/src/share/vm/oops/instanceKlass.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/oops/instanceKlass.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -1859,6 +1859,25 @@
}
}
+// Returns true iff super_method can be overridden by a method in targetclassname
+// See JSL 3rd edition 8.4.6.1
+// Assumes name-signature match
+// "this" is instanceKlass of super_method which must exist
+// note that the instanceKlass of the method in the targetclassname has not always been created yet
+bool instanceKlass::is_override(methodHandle super_method, Handle targetclassloader, symbolHandle targetclassname, TRAPS) {
+ // Private methods can not be overridden
+ if (super_method->is_private()) {
+ return false;
+ }
+ // If super method is accessible, then override
+ if ((super_method->is_protected()) ||
+ (super_method->is_public())) {
+ return true;
+ }
+ // Package-private methods are not inherited outside of package
+ assert(super_method->is_package_private(), "must be package private");
+ return(is_same_class_package(targetclassloader(), targetclassname()));
+}
jint instanceKlass::compute_modifier_flags(TRAPS) const {
klassOop k = as_klassOop();
--- a/hotspot/src/share/vm/oops/instanceKlass.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/oops/instanceKlass.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -303,6 +303,9 @@
inner_class_next_offset = 4
};
+ // method override check
+ bool is_override(methodHandle super_method, Handle targetclassloader, symbolHandle targetclassname, TRAPS);
+
// package
bool is_same_class_package(klassOop class2);
bool is_same_class_package(oop classloader2, symbolOop classname2);
--- a/hotspot/src/share/vm/oops/klassVtable.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/oops/klassVtable.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -45,9 +45,10 @@
klassOop super,
objArrayOop methods,
AccessFlags class_flags,
- oop classloader,
- symbolOop classname,
- objArrayOop local_interfaces
+ Handle classloader,
+ symbolHandle classname,
+ objArrayOop local_interfaces,
+ TRAPS
) {
No_Safepoint_Verifier nsv;
@@ -64,9 +65,9 @@
int len = methods->length();
for (int i = 0; i < len; i++) {
assert(methods->obj_at(i)->is_method(), "must be a methodOop");
- methodOop m = methodOop(methods->obj_at(i));
+ methodHandle mh(THREAD, methodOop(methods->obj_at(i)));
- if (needs_new_vtable_entry(m, super, classloader, classname, class_flags)) {
+ if (needs_new_vtable_entry(mh, super, classloader, classname, class_flags, THREAD)) {
vtable_length += vtableEntry::size(); // we need a new entry
}
}
@@ -117,6 +118,7 @@
superVtable->copy_vtable_to(table());
#ifndef PRODUCT
if (PrintVtables && Verbose) {
+ ResourceMark rm;
tty->print_cr("copy vtable from %s to %s size %d", sk->internal_name(), klass()->internal_name(), _length);
}
#endif
@@ -159,13 +161,13 @@
int len = methods()->length();
int initialized = super_vtable_len;
- // update_super_vtable can stop for gc - ensure using handles
+ // update_inherited_vtable can stop for gc - ensure using handles
for (int i = 0; i < len; i++) {
HandleMark hm(THREAD);
assert(methods()->obj_at(i)->is_method(), "must be a methodOop");
methodHandle mh(THREAD, (methodOop)methods()->obj_at(i));
- bool needs_new_entry = update_super_vtable(ik(), mh, super_vtable_len, checkconstraints, CHECK);
+ bool needs_new_entry = update_inherited_vtable(ik(), mh, super_vtable_len, checkconstraints, CHECK);
if (needs_new_entry) {
put_method_at(mh(), initialized);
@@ -177,7 +179,7 @@
// add miranda methods; it will also update the value of initialized
fill_in_mirandas(initialized);
- // In class hierachieswhere the accesibility is not increasing (i.e., going from private ->
+ // In class hierarchies where the accessibility is not increasing (i.e., going from private ->
// package_private -> publicprotected), the vtable might actually be smaller than our initial
// calculation.
assert(initialized <= _length, "vtable initialization failed");
@@ -188,26 +190,49 @@
}
}
-// Interates through the vtables to find the broadest access level. This
-// will always be monotomic for valid Java programs - but not neccesarily
-// for incompatible class files.
-klassVtable::AccessType klassVtable::vtable_accessibility_at(int i) {
- // This vtable is not implementing the specific method
- if (i >= length()) return acc_private;
+// Called for cases where a method does not override its superclass' vtable entry
+// For bytecodes not produced by javac together it is possible that a method does not override
+// the superclass's method, but might indirectly override a super-super class's vtable entry
+// If none found, return a null superk, else return the superk of the method this does override
+instanceKlass* klassVtable::find_transitive_override(instanceKlass* initialsuper, methodHandle target_method,
+ int vtable_index, Handle target_loader, symbolHandle target_classname, Thread * THREAD) {
+ instanceKlass* superk = initialsuper;
+ while (superk != NULL && superk->super() != NULL) {
+ instanceKlass* supersuperklass = instanceKlass::cast(superk->super());
+ klassVtable* ssVtable = supersuperklass->vtable();
+ if (vtable_index < ssVtable->length()) {
+ methodOop super_method = ssVtable->method_at(vtable_index);
+#ifndef PRODUCT
+ symbolHandle name(THREAD,target_method()->name());
+ symbolHandle signature(THREAD,target_method()->signature());
+ assert(super_method->name() == name() && super_method->signature() == signature(), "vtable entry name/sig mismatch");
+#endif
+ if (supersuperklass->is_override(super_method, target_loader, target_classname, THREAD)) {
+#ifndef PRODUCT
+ if (PrintVtables && Verbose) {
+ ResourceMark rm(THREAD);
+ tty->print("transitive overriding superclass %s with %s::%s index %d, original flags: ",
+ supersuperklass->internal_name(),
+ _klass->internal_name(), (target_method() != NULL) ?
+ target_method()->name()->as_C_string() : "<NULL>", vtable_index);
+ super_method->access_flags().print_on(tty);
+ tty->print("overriders flags: ");
+ target_method->access_flags().print_on(tty);
+ tty->cr();
+ }
+#endif /*PRODUCT*/
+ break; // return found superk
+ }
+ } else {
+ // super class has no vtable entry here, stop transitive search
+ superk = (instanceKlass*)NULL;
+ break;
+ }
+ // if no override found yet, continue to search up
+ superk = instanceKlass::cast(superk->super());
+ }
- // Compute AccessType for current method. public or protected we are done.
- methodOop m = method_at(i);
- if (m->is_protected() || m->is_public()) return acc_publicprotected;
-
- AccessType acc = m->is_package_private() ? acc_package_private : acc_private;
-
- // Compute AccessType for method in super classes
- klassOop super = klass()->super();
- AccessType super_acc = (super != NULL) ? instanceKlass::cast(klass()->super())->vtable()->vtable_accessibility_at(i)
- : acc_private;
-
- // Merge
- return (AccessType)MAX2((int)acc, (int)super_acc);
+ return superk;
}
@@ -215,7 +240,8 @@
// OR return true if a new vtable entry is required
// Only called for instanceKlass's, i.e. not for arrays
// If that changed, could not use _klass as handle for klass
-bool klassVtable::update_super_vtable(instanceKlass* klass, methodHandle target_method, int super_vtable_len, bool checkconstraints, TRAPS) {
+bool klassVtable::update_inherited_vtable(instanceKlass* klass, methodHandle target_method, int super_vtable_len,
+ bool checkconstraints, TRAPS) {
ResourceMark rm;
bool allocate_new = true;
assert(klass->oop_is_instance(), "must be instanceKlass");
@@ -242,58 +268,35 @@
}
// private methods always have a new entry in the vtable
+ // specification interpretation since classic has
+ // private methods not overriding
if (target_method()->is_private()) {
return allocate_new;
}
// search through the vtable and update overridden entries
// Since check_signature_loaders acquires SystemDictionary_lock
- // which can block for gc, once we are in this loop, use handles, not
- // unhandled oops unless they are reinitialized for each loop
- // handles for name, signature, klass, target_method
- // not for match_method, holder
+ // which can block for gc, once we are in this loop, use handles
+ // For classfiles built with >= jdk7, we now look for transitive overrides
symbolHandle name(THREAD,target_method()->name());
symbolHandle signature(THREAD,target_method()->signature());
+ Handle target_loader(THREAD, _klass->class_loader());
+ symbolHandle target_classname(THREAD, _klass->name());
for(int i = 0; i < super_vtable_len; i++) {
- methodOop match_method = method_at(i);
+ methodOop super_method = method_at(i);
// Check if method name matches
- if (match_method->name() == name() && match_method->signature() == signature()) {
-
- instanceKlass* holder = (THREAD, instanceKlass::cast(match_method->method_holder()));
-
- // Check if the match_method is accessable from current class
-
- bool same_package_init = false;
- bool same_package_flag = false;
- bool simple_match = match_method->is_public() || match_method->is_protected();
- if (!simple_match) {
- same_package_init = true;
- same_package_flag = holder->is_same_class_package(_klass->class_loader(), _klass->name());
+ if (super_method->name() == name() && super_method->signature() == signature()) {
- simple_match = match_method->is_package_private() && same_package_flag;
- }
- // match_method is the superclass' method. Note we can't override
- // and shouldn't access superclass' ACC_PRIVATE methods
- // (although they have been copied into our vtable)
- // A simple form of this statement is:
- // if ( (match_method->is_public() || match_method->is_protected()) ||
- // (match_method->is_package_private() && holder->is_same_class_package(klass->class_loader(), klass->name()))) {
- //
- // The complexity is introduced it avoid recomputing 'is_same_class_package' which is expensive.
- if (simple_match) {
- // Check if target_method and match_method has same level of accessibility. The accesibility of the
- // match method is the "most-general" visibility of all entries at it's particular vtable index for
- // all superclasses. This check must be done before we override the current entry in the vtable.
- AccessType at = vtable_accessibility_at(i);
- bool same_access = false;
+ // get super_klass for method_holder for the found method
+ instanceKlass* super_klass = instanceKlass::cast(super_method->method_holder());
- if ( (at == acc_publicprotected && (target_method()->is_public() || target_method()->is_protected())
- || (at == acc_package_private && (target_method()->is_package_private() &&
- (( same_package_init && same_package_flag) ||
- (!same_package_init && holder->is_same_class_package(_klass->class_loader(), _klass->name()))))))) {
- same_access = true;
- }
+ if ((super_klass->is_override(super_method, target_loader, target_classname, THREAD)) ||
+ ((klass->major_version() >= VTABLE_TRANSITIVE_OVERRIDE_VERSION)
+ && ((super_klass = find_transitive_override(super_klass, target_method, i, target_loader,
+ target_classname, THREAD)) != (instanceKlass*)NULL))) {
+ // overriding, so no new entry
+ allocate_new = false;
if (checkconstraints) {
// Override vtable entry if passes loader constraint check
@@ -302,15 +305,12 @@
// have already made any needed loader constraints.
// Since loader constraints are transitive, it is enough
// to link to the first super, and we get all the others.
- symbolHandle signature(THREAD, target_method()->signature());
- Handle this_loader(THREAD, _klass->class_loader());
- instanceKlassHandle super_klass(THREAD, _klass->super());
Handle super_loader(THREAD, super_klass->class_loader());
- if (this_loader() != super_loader()) {
+ if (target_loader() != super_loader()) {
ResourceMark rm(THREAD);
char* failed_type_name =
- SystemDictionary::check_signature_loaders(signature, this_loader,
+ SystemDictionary::check_signature_loaders(signature, target_loader,
super_loader, true,
CHECK_(false));
if (failed_type_name != NULL) {
@@ -320,7 +320,7 @@
"(instance of %s), have different Class objects for the type "
"%s used in the signature";
char* sig = target_method()->name_and_sig_as_C_string();
- const char* loader1 = SystemDictionary::loader_name(this_loader());
+ const char* loader1 = SystemDictionary::loader_name(target_loader());
char* current = _klass->name()->as_C_string();
const char* loader2 = SystemDictionary::loader_name(super_loader());
size_t buflen = strlen(msg) + strlen(sig) + strlen(loader1) +
@@ -331,59 +331,46 @@
THROW_MSG_(vmSymbols::java_lang_LinkageError(), buf, false);
}
}
- }
- put_method_at(target_method(), i);
-
+ }
- if (same_access) {
- // target and match has same accessiblity - share entry
- allocate_new = false;
- target_method()->set_vtable_index(i);
+ put_method_at(target_method(), i);
+ target_method()->set_vtable_index(i);
#ifndef PRODUCT
- if (PrintVtables && Verbose) {
- AccessType targetacc;
- if (target_method()->is_protected() ||
- target_method()->is_public()) {
- targetacc = acc_publicprotected;
- } else {
- targetacc = target_method()->is_package_private() ? acc_package_private : acc_private;
- }
- tty->print_cr("overriding with %s::%s index %d, original flags: %x overriders flags: %x",
- _klass->internal_name(), (target_method() != NULL) ?
- target_method()->name()->as_C_string() : "<NULL>", i,
- at, targetacc);
- }
+ if (PrintVtables && Verbose) {
+ tty->print("overriding with %s::%s index %d, original flags: ",
+ _klass->internal_name(), (target_method() != NULL) ?
+ target_method()->name()->as_C_string() : "<NULL>", i);
+ super_method->access_flags().print_on(tty);
+ tty->print("overriders flags: ");
+ target_method->access_flags().print_on(tty);
+ tty->cr();
+ }
#endif /*PRODUCT*/
- } else {
+ } else {
+ // allocate_new = true; default. We might override one entry,
+ // but not override another. Once we override one, not need new
#ifndef PRODUCT
- if (PrintVtables && Verbose) {
- AccessType targetacc;
- if (target_method()->is_protected() ||
- target_method()->is_public()) {
- targetacc = acc_publicprotected;
- } else {
- targetacc = target_method()->is_package_private() ? acc_package_private : acc_private;
- }
- tty->print_cr("override %s %s::%s at index %d, original flags: %x overriders flags: %x",
- allocate_new ? "+ new" : "only",
- _klass->internal_name(), (target_method() != NULL) ?
- target_method()->name()->as_C_string() : "<NULL>", i,
- at, targetacc);
- }
+ if (PrintVtables && Verbose) {
+ tty->print("NOT overriding with %s::%s index %d, original flags: ",
+ _klass->internal_name(), (target_method() != NULL) ?
+ target_method()->name()->as_C_string() : "<NULL>", i);
+ super_method->access_flags().print_on(tty);
+ tty->print("overriders flags: ");
+ target_method->access_flags().print_on(tty);
+ tty->cr();
+ }
#endif /*PRODUCT*/
- }
}
}
}
return allocate_new;
}
-
-
void klassVtable::put_method_at(methodOop m, int index) {
assert(m->is_oop_or_null(), "Not an oop or null");
#ifndef PRODUCT
if (PrintVtables && Verbose) {
+ ResourceMark rm;
tty->print_cr("adding %s::%s at index %d", _klass->internal_name(),
(m != NULL) ? m->name()->as_C_string() : "<NULL>", index);
}
@@ -397,19 +384,23 @@
// by "classloader" and "classname".
// NOTE: The logic used here is very similar to the one used for computing
// the vtables indices for a method. We cannot directly use that function because,
-// when the Universe is boostrapping, a super's vtable might not be initialized.
-bool klassVtable::needs_new_vtable_entry(methodOop target_method,
+// we allocate the instanceKlass at load time, and that requires that the
+// superclass has been loaded.
+// However, the vtable entries are filled in at link time, and therefore
+// the superclass' vtable may not yet have been filled in.
+bool klassVtable::needs_new_vtable_entry(methodHandle target_method,
klassOop super,
- oop classloader,
- symbolOop classname,
- AccessFlags class_flags) {
- if ((class_flags.is_final() || target_method->is_final()) ||
+ Handle classloader,
+ symbolHandle classname,
+ AccessFlags class_flags,
+ TRAPS) {
+ if ((class_flags.is_final() || target_method()->is_final()) ||
// a final method never needs a new entry; final methods can be statically
// resolved and they have to be present in the vtable only if they override
// a super's method, in which case they re-use its entry
- (target_method->is_static()) ||
+ (target_method()->is_static()) ||
// static methods don't need to be in vtable
- (target_method->name() == vmSymbols::object_initializer_name())
+ (target_method()->name() == vmSymbols::object_initializer_name())
// <init> is never called dynamically-bound
) {
return false;
@@ -421,55 +412,58 @@
}
// private methods always have a new entry in the vtable
- if (target_method->is_private()) {
+ // specification interpretation since classic has
+ // private methods not overriding
+ if (target_method()->is_private()) {
return true;
}
// search through the super class hierarchy to see if we need
// a new entry
- symbolOop name = target_method->name();
- symbolOop signature = target_method->signature();
+ ResourceMark rm;
+ symbolOop name = target_method()->name();
+ symbolOop signature = target_method()->signature();
klassOop k = super;
- methodOop match_method = NULL;
+ methodOop super_method = NULL;
instanceKlass *holder = NULL;
+ methodOop recheck_method = NULL;
while (k != NULL) {
// lookup through the hierarchy for a method with matching name and sign.
- match_method = instanceKlass::cast(k)->lookup_method(name, signature);
- if (match_method == NULL) {
+ super_method = instanceKlass::cast(k)->lookup_method(name, signature);
+ if (super_method == NULL) {
break; // we still have to search for a matching miranda method
}
// get the class holding the matching method
- holder = instanceKlass::cast(match_method->method_holder());
-
- if (!match_method->is_static()) { // we want only instance method matches
- if ((target_method->is_public() || target_method->is_protected()) &&
- (match_method->is_public() || match_method->is_protected())) {
- // target and match are public/protected; we do not need a new entry
+ // make sure you use that class for is_override
+ instanceKlass* superk = instanceKlass::cast(super_method->method_holder());
+ // we want only instance method matches
+ // pretend private methods are not in the super vtable
+ // since we do override around them: e.g. a.m pub/b.m private/c.m pub,
+ // ignore private, c.m pub does override a.m pub
+ // For classes that were not javac'd together, we also do transitive overriding around
+ // methods that have less accessibility
+ if ((!super_method->is_static()) &&
+ (!super_method->is_private())) {
+ if (superk->is_override(super_method, classloader, classname, THREAD)) {
return false;
- }
-
- if (target_method->is_package_private() &&
- match_method->is_package_private() &&
- holder->is_same_class_package(classloader, classname)) {
- // target and match are P private; we do not need a new entry
- return false;
+ // else keep looking for transitive overrides
}
}
- k = holder->super(); // haven't found a match yet; continue to look
+ // Start with lookup result and continue to search up
+ k = superk->super(); // haven't found an override match yet; continue to look
}
// if the target method is public or protected it may have a matching
// miranda method in the super, whose entry it should re-use.
- if (target_method->is_public() || target_method->is_protected()) {
- instanceKlass *sk = instanceKlass::cast(super);
- if (sk->has_miranda_methods()) {
- if (sk->lookup_method_in_all_interfaces(name, signature) != NULL) {
- return false; // found a matching miranda; we do not need a new entry
- }
+ // Actually, to handle cases that javac would not generate, we need
+ // this check for all access permissions.
+ instanceKlass *sk = instanceKlass::cast(super);
+ if (sk->has_miranda_methods()) {
+ if (sk->lookup_method_in_all_interfaces(name, signature) != NULL) {
+ return false; // found a matching miranda; we do not need a new entry
}
}
-
return true; // found no match; we need a new entry
}
@@ -884,7 +878,7 @@
_klass->name()->as_C_string());
- // Interate through all interfaces
+ // Iterate through all interfaces
int i;
for(i = 0; i < num_interfaces; i++) {
itableOffsetEntry* ioe = offset_entry(i);
@@ -1012,6 +1006,7 @@
new_method->name()->as_C_string(),
new_method->signature()->as_C_string()));
}
+ break;
}
ime++;
}
--- a/hotspot/src/share/vm/oops/klassVtable.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/oops/klassVtable.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -70,8 +70,9 @@
// conputes vtable length (in words) and the number of miranda methods
static void compute_vtable_size_and_num_mirandas(int &vtable_length, int &num_miranda_methods,
klassOop super, objArrayOop methods,
- AccessFlags class_flags, oop classloader,
- symbolOop classname, objArrayOop local_interfaces);
+ AccessFlags class_flags, Handle classloader,
+ symbolHandle classname, objArrayOop local_interfaces,
+ TRAPS);
// RedefineClasses() API support:
// If any entry of this vtable points to any of old_methods,
@@ -111,14 +112,16 @@
protected:
friend class vtableEntry;
private:
+ enum { VTABLE_TRANSITIVE_OVERRIDE_VERSION = 51 } ;
void copy_vtable_to(vtableEntry* start);
int initialize_from_super(KlassHandle super);
int index_of(methodOop m, int len) const; // same as index_of, but search only up to len
void put_method_at(methodOop m, int index);
- static bool needs_new_vtable_entry(methodOop m, klassOop super, oop classloader, symbolOop classname, AccessFlags access_flags);
- AccessType vtable_accessibility_at(int i);
+ static bool needs_new_vtable_entry(methodHandle m, klassOop super, Handle classloader, symbolHandle classname, AccessFlags access_flags, TRAPS);
- bool update_super_vtable(instanceKlass* klass, methodHandle target_method, int super_vtable_len, bool checkconstraints, TRAPS);
+ bool update_inherited_vtable(instanceKlass* klass, methodHandle target_method, int super_vtable_len, bool checkconstraints, TRAPS);
+ instanceKlass* find_transitive_override(instanceKlass* initialsuper, methodHandle target_method, int vtable_index,
+ Handle target_loader, symbolHandle target_classname, Thread* THREAD);
// support for miranda methods
bool is_miranda_entry_at(int i);
--- a/hotspot/src/share/vm/oops/oop.inline.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/oops/oop.inline.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -148,10 +148,11 @@
inline narrowOop oopDesc::encode_heap_oop_not_null(oop v) {
assert(!is_null(v), "oop value can never be zero");
- address heap_base = Universe::heap_base();
- uint64_t pd = (uint64_t)(pointer_delta((void*)v, (void*)heap_base, 1));
+ address base = Universe::narrow_oop_base();
+ int shift = Universe::narrow_oop_shift();
+ uint64_t pd = (uint64_t)(pointer_delta((void*)v, (void*)base, 1));
assert(OopEncodingHeapMax > pd, "change encoding max if new encoding");
- uint64_t result = pd >> LogMinObjAlignmentInBytes;
+ uint64_t result = pd >> shift;
assert((result & CONST64(0xffffffff00000000)) == 0, "narrow oop overflow");
return (narrowOop)result;
}
@@ -162,8 +163,9 @@
inline oop oopDesc::decode_heap_oop_not_null(narrowOop v) {
assert(!is_null(v), "narrow oop value can never be zero");
- address heap_base = Universe::heap_base();
- return (oop)(void*)((uintptr_t)heap_base + ((uintptr_t)v << LogMinObjAlignmentInBytes));
+ address base = Universe::narrow_oop_base();
+ int shift = Universe::narrow_oop_shift();
+ return (oop)(void*)((uintptr_t)base + ((uintptr_t)v << shift));
}
inline oop oopDesc::decode_heap_oop(narrowOop v) {
--- a/hotspot/src/share/vm/opto/addnode.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/opto/addnode.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -756,7 +756,13 @@
if ( eti == NULL ) {
// there must be one pointer among the operands
guarantee(tptr == NULL, "must be only one pointer operand");
- tptr = et->isa_oopptr();
+ if (UseCompressedOops && Universe::narrow_oop_shift() == 0) {
+ // 32-bits narrow oop can be the base of address expressions
+ tptr = et->make_ptr()->isa_oopptr();
+ } else {
+ // only regular oops are expected here
+ tptr = et->isa_oopptr();
+ }
guarantee(tptr != NULL, "non-int operand must be pointer");
if (tptr->higher_equal(tp->add_offset(tptr->offset())))
tp = tptr; // Set more precise type for bailout
--- a/hotspot/src/share/vm/opto/classes.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/opto/classes.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -184,6 +184,8 @@
macro(Parm)
macro(PartialSubtypeCheck)
macro(Phi)
+macro(PopCountI)
+macro(PopCountL)
macro(PowD)
macro(PrefetchRead)
macro(PrefetchWrite)
--- a/hotspot/src/share/vm/opto/compile.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/opto/compile.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -2081,7 +2081,7 @@
#ifdef _LP64
case Op_CastPP:
- if (n->in(1)->is_DecodeN() && UseImplicitNullCheckForNarrowOop) {
+ if (n->in(1)->is_DecodeN() && Universe::narrow_oop_use_implicit_null_checks()) {
Compile* C = Compile::current();
Node* in1 = n->in(1);
const Type* t = n->bottom_type();
@@ -2136,7 +2136,7 @@
new_in2 = in2->in(1);
} else if (in2->Opcode() == Op_ConP) {
const Type* t = in2->bottom_type();
- if (t == TypePtr::NULL_PTR && UseImplicitNullCheckForNarrowOop) {
+ if (t == TypePtr::NULL_PTR && Universe::narrow_oop_use_implicit_null_checks()) {
new_in2 = ConNode::make(C, TypeNarrowOop::NULL_PTR);
//
// This transformation together with CastPP transformation above
--- a/hotspot/src/share/vm/opto/connode.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/opto/connode.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -433,7 +433,7 @@
// If not converting int->oop, throw away cast after constant propagation
Node *CastPPNode::Ideal_DU_postCCP( PhaseCCP *ccp ) {
const Type *t = ccp->type(in(1));
- if (!t->isa_oop_ptr() || in(1)->is_DecodeN()) {
+ if (!t->isa_oop_ptr() || (in(1)->is_DecodeN() && Universe::narrow_oop_use_implicit_null_checks())) {
return NULL; // do not transform raw pointers or narrow oops
}
return ConstraintCastNode::Ideal_DU_postCCP(ccp);
--- a/hotspot/src/share/vm/opto/connode.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/opto/connode.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -1,5 +1,5 @@
/*
- * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
+ * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -635,3 +635,23 @@
virtual uint ideal_reg() const { return Op_RegL; }
virtual const Type* Value( PhaseTransform *phase ) const;
};
+
+//---------- PopCountINode -----------------------------------------------------
+// Population count (bit count) of an integer.
+class PopCountINode : public Node {
+public:
+ PopCountINode(Node* in1) : Node(0, in1) {}
+ virtual int Opcode() const;
+ const Type* bottom_type() const { return TypeInt::INT; }
+ virtual uint ideal_reg() const { return Op_RegI; }
+};
+
+//---------- PopCountLNode -----------------------------------------------------
+// Population count (bit count) of a long.
+class PopCountLNode : public Node {
+public:
+ PopCountLNode(Node* in1) : Node(0, in1) {}
+ virtual int Opcode() const;
+ const Type* bottom_type() const { return TypeInt::INT; }
+ virtual uint ideal_reg() const { return Op_RegI; }
+};
--- a/hotspot/src/share/vm/opto/graphKit.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/opto/graphKit.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -2277,7 +2277,7 @@
r_not_subtype->init_req(1, _gvn.transform( new (C, 1) IfTrueNode (iff2) ) );
set_control( _gvn.transform( new (C, 1) IfFalseNode(iff2) ) );
- // Check for self. Very rare to get here, but its taken 1/3 the time.
+ // Check for self. Very rare to get here, but it is taken 1/3 the time.
// No performance impact (too rare) but allows sharing of secondary arrays
// which has some footprint reduction.
Node *cmp3 = _gvn.transform( new (C, 3) CmpPNode( subklass, superklass ) );
@@ -2286,11 +2286,27 @@
r_ok_subtype->init_req(2, _gvn.transform( new (C, 1) IfTrueNode ( iff3 ) ) );
set_control( _gvn.transform( new (C, 1) IfFalseNode( iff3 ) ) );
+ // -- Roads not taken here: --
+ // We could also have chosen to perform the self-check at the beginning
+ // of this code sequence, as the assembler does. This would not pay off
+ // the same way, since the optimizer, unlike the assembler, can perform
+ // static type analysis to fold away many successful self-checks.
+ // Non-foldable self checks work better here in second position, because
+ // the initial primary superclass check subsumes a self-check for most
+ // types. An exception would be a secondary type like array-of-interface,
+ // which does not appear in its own primary supertype display.
+ // Finally, we could have chosen to move the self-check into the
+ // PartialSubtypeCheckNode, and from there out-of-line in a platform
+ // dependent manner. But it is worthwhile to have the check here,
+ // where it can be perhaps be optimized. The cost in code space is
+ // small (register compare, branch).
+
// Now do a linear scan of the secondary super-klass array. Again, no real
// performance impact (too rare) but it's gotta be done.
- // (The stub also contains the self-check of subklass == superklass.
// Since the code is rarely used, there is no penalty for moving it
- // out of line, and it can only improve I-cache density.)
+ // out of line, and it can only improve I-cache density.
+ // The decision to inline or out-of-line this final check is platform
+ // dependent, and is found in the AD file definition of PartialSubtypeCheck.
Node* psc = _gvn.transform(
new (C, 3) PartialSubtypeCheckNode(control(), subklass, superklass) );
--- a/hotspot/src/share/vm/opto/lcm.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/opto/lcm.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -158,7 +158,14 @@
continue; // Give up if offset is beyond page size
// cannot reason about it; is probably not implicit null exception
} else {
- const TypePtr* tptr = base->bottom_type()->is_ptr();
+ const TypePtr* tptr;
+ if (UseCompressedOops && Universe::narrow_oop_shift() == 0) {
+ // 32-bits narrow oop can be the base of address expressions
+ tptr = base->bottom_type()->make_ptr();
+ } else {
+ // only regular oops are expected here
+ tptr = base->bottom_type()->is_ptr();
+ }
// Give up if offset is not a compile-time constant
if( offset == Type::OffsetBot || tptr->_offset == Type::OffsetBot )
continue;
--- a/hotspot/src/share/vm/opto/library_call.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/opto/library_call.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -1,5 +1,5 @@
/*
- * Copyright 1999-2008 Sun Microsystems, Inc. All Rights Reserved.
+ * Copyright 1999-2009 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -221,6 +221,7 @@
bool inline_unsafe_CAS(BasicType type);
bool inline_unsafe_ordered_store(BasicType type);
bool inline_fp_conversions(vmIntrinsics::ID id);
+ bool inline_bitCount(vmIntrinsics::ID id);
bool inline_reverseBytes(vmIntrinsics::ID id);
};
@@ -314,6 +315,11 @@
if (!JDK_Version::is_gte_jdk14x_version()) return NULL;
break;
+ case vmIntrinsics::_bitCount_i:
+ case vmIntrinsics::_bitCount_l:
+ if (!UsePopCountInstruction) return NULL;
+ break;
+
default:
break;
}
@@ -617,6 +623,10 @@
case vmIntrinsics::_longBitsToDouble:
return inline_fp_conversions(intrinsic_id());
+ case vmIntrinsics::_bitCount_i:
+ case vmIntrinsics::_bitCount_l:
+ return inline_bitCount(intrinsic_id());
+
case vmIntrinsics::_reverseBytes_i:
case vmIntrinsics::_reverseBytes_l:
return inline_reverseBytes((vmIntrinsics::ID) intrinsic_id());
@@ -1714,6 +1724,27 @@
}
}
+//----------------------------inline_bitCount_int/long-----------------------
+// inline int Integer.bitCount(int)
+// inline int Long.bitCount(long)
+bool LibraryCallKit::inline_bitCount(vmIntrinsics::ID id) {
+ assert(id == vmIntrinsics::_bitCount_i || id == vmIntrinsics::_bitCount_l, "not bitCount");
+ if (id == vmIntrinsics::_bitCount_i && !Matcher::has_match_rule(Op_PopCountI)) return false;
+ if (id == vmIntrinsics::_bitCount_l && !Matcher::has_match_rule(Op_PopCountL)) return false;
+ _sp += arg_size(); // restore stack pointer
+ switch (id) {
+ case vmIntrinsics::_bitCount_i:
+ push(_gvn.transform(new (C, 2) PopCountINode(pop())));
+ break;
+ case vmIntrinsics::_bitCount_l:
+ push(_gvn.transform(new (C, 2) PopCountLNode(pop_pair())));
+ break;
+ default:
+ ShouldNotReachHere();
+ }
+ return true;
+}
+
//----------------------------inline_reverseBytes_int/long-------------------
// inline Integer.reverseBytes(int)
// inline Long.reverseBytes(long)
--- a/hotspot/src/share/vm/opto/matcher.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/opto/matcher.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -1481,8 +1481,13 @@
const Type* mach_at = mach->adr_type();
// DecodeN node consumed by an address may have different type
// then its input. Don't compare types for such case.
- if (m->adr_type() != mach_at && m->in(MemNode::Address)->is_AddP() &&
- m->in(MemNode::Address)->in(AddPNode::Address)->is_DecodeN()) {
+ if (m->adr_type() != mach_at &&
+ (m->in(MemNode::Address)->is_DecodeN() ||
+ m->in(MemNode::Address)->is_AddP() &&
+ m->in(MemNode::Address)->in(AddPNode::Address)->is_DecodeN() ||
+ m->in(MemNode::Address)->is_AddP() &&
+ m->in(MemNode::Address)->in(AddPNode::Address)->is_AddP() &&
+ m->in(MemNode::Address)->in(AddPNode::Address)->in(AddPNode::Address)->is_DecodeN())) {
mach_at = m->adr_type();
}
if (m->adr_type() != mach_at) {
--- a/hotspot/src/share/vm/prims/jni.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/prims/jni.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -301,6 +301,10 @@
klassOop k = SystemDictionary::resolve_from_stream(class_name, class_loader,
Handle(), &st, CHECK_NULL);
+ if (TraceClassResolution && k != NULL) {
+ trace_class_resolution(k);
+ }
+
cls = (jclass)JNIHandles::make_local(
env, Klass::cast(k)->java_mirror());
return cls;
@@ -365,6 +369,10 @@
result = find_class_from_class_loader(env, sym, true, loader,
protection_domain, true, thread);
+ if (TraceClassResolution && result != NULL) {
+ trace_class_resolution(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(result)));
+ }
+
// If we were the first invocation of jni_FindClass, we enable compilation again
// rather than just allowing invocation counter to overflow and decay.
// Controlled by flag DelayCompilationDuringStartup.
@@ -2646,7 +2654,12 @@
Handle protection_domain; // null protection domain
symbolHandle sym = oopFactory::new_symbol_handle(name, CHECK_NULL);
- return find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);
+ jclass result = find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);
+
+ if (TraceClassResolution && result != NULL) {
+ trace_class_resolution(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(result)));
+ }
+ return result;
}
// These lookups are done with the NULL (bootstrap) ClassLoader to
--- a/hotspot/src/share/vm/prims/jvm.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/prims/jvm.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -64,6 +64,7 @@
ResourceMark rm;
int line_number = -1;
const char * source_file = NULL;
+ const char * trace = "explicit";
klassOop caller = NULL;
JavaThread* jthread = JavaThread::current();
if (jthread->has_last_Java_frame()) {
@@ -107,12 +108,21 @@
(last_caller->name() == vmSymbols::loadClassInternal_name() ||
last_caller->name() == vmSymbols::loadClass_name())) {
found_it = true;
+ } else if (!vfst.at_end()) {
+ if (vfst.method()->is_native()) {
+ // JNI call
+ found_it = true;
+ }
}
if (found_it && !vfst.at_end()) {
// found the caller
caller = vfst.method()->method_holder();
line_number = vfst.method()->line_number_from_bci(vfst.bci());
- symbolOop s = instanceKlass::cast(vfst.method()->method_holder())->source_file_name();
+ if (line_number == -1) {
+ // show method name if it's a native method
+ trace = vfst.method()->name_and_sig_as_C_string();
+ }
+ symbolOop s = instanceKlass::cast(caller)->source_file_name();
if (s != NULL) {
source_file = s->as_C_string();
}
@@ -124,15 +134,15 @@
const char * to = Klass::cast(to_class)->external_name();
// print in a single call to reduce interleaving between threads
if (source_file != NULL) {
- tty->print("RESOLVE %s %s %s:%d (explicit)\n", from, to, source_file, line_number);
+ tty->print("RESOLVE %s %s %s:%d (%s)\n", from, to, source_file, line_number, trace);
} else {
- tty->print("RESOLVE %s %s (explicit)\n", from, to);
+ tty->print("RESOLVE %s %s (%s)\n", from, to, trace);
}
}
}
}
-static void trace_class_resolution(klassOop to_class) {
+void trace_class_resolution(klassOop to_class) {
EXCEPTION_MARK;
trace_class_resolution_impl(to_class, THREAD);
if (HAS_PENDING_EXCEPTION) {
@@ -3213,8 +3223,12 @@
}
Handle h_loader(THREAD, loader);
Handle h_prot (THREAD, protection_domain);
- return find_class_from_class_loader(env, name, true, h_loader, h_prot,
- false, thread);
+ jclass result = find_class_from_class_loader(env, name, true, h_loader, h_prot,
+ false, thread);
+ if (TraceClassResolution && result != NULL) {
+ trace_class_resolution(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(result)));
+ }
+ return result;
JVM_END
--- a/hotspot/src/share/vm/prims/jvm_misc.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/prims/jvm_misc.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -27,6 +27,7 @@
jclass find_class_from_class_loader(JNIEnv* env, symbolHandle name, jboolean init, Handle loader, Handle protection_domain, jboolean throwError, TRAPS);
+void trace_class_resolution(klassOop to_class);
/*
* Support for Serialization and RMI. Currently used by HotSpot only.
--- a/hotspot/src/share/vm/runtime/arguments.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/runtime/arguments.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -1211,7 +1211,9 @@
if (UseLargePages && UseCompressedOops) {
// Cannot allocate guard pages for implicit checks in indexed addressing
// mode, when large pages are specified on windows.
- FLAG_SET_DEFAULT(UseImplicitNullCheckForNarrowOop, false);
+ // This flag could be switched ON if narrow oop base address is set to 0,
+ // see code in Universe::initialize_heap().
+ Universe::set_narrow_oop_use_implicit_null_checks(false);
}
#endif // _WIN64
} else {
--- a/hotspot/src/share/vm/runtime/globals.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/runtime/globals.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -303,11 +303,14 @@
"Use 32-bit object references in 64-bit VM. " \
"lp64_product means flag is always constant in 32 bit VM") \
\
- lp64_product(bool, CheckCompressedOops, trueInDebug, \
- "generate checks in encoding/decoding code") \
- \
- product(bool, UseImplicitNullCheckForNarrowOop, true, \
- "generate implicit null check in indexed addressing mode.") \
+ notproduct(bool, CheckCompressedOops, true, \
+ "generate checks in encoding/decoding code in debug VM") \
+ \
+ product_pd(uintx, HeapBaseMinAddress, \
+ "OS specific low limit for heap base address") \
+ \
+ diagnostic(bool, PrintCompressedOopsMode, false, \
+ "Print compressed oops base address and encoding mode") \
\
/* UseMembar is theoretically a temp flag used for memory barrier \
* removal testing. It was supposed to be removed before FCS but has \
@@ -2169,6 +2172,9 @@
diagnostic(bool, PrintIntrinsics, false, \
"prints attempted and successful inlining of intrinsics") \
\
+ product(bool, UsePopCountInstruction, false, \
+ "Use population count instruction") \
+ \
diagnostic(ccstrlist, DisableIntrinsic, "", \
"do not expand intrinsics whose (internal) names appear here") \
\
--- a/hotspot/src/share/vm/runtime/os.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/runtime/os.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -202,8 +202,10 @@
static char* attempt_reserve_memory_at(size_t bytes, char* addr);
static void split_reserved_memory(char *base, size_t size,
size_t split, bool realloc);
- static bool commit_memory(char* addr, size_t bytes);
- static bool commit_memory(char* addr, size_t size, size_t alignment_hint);
+ static bool commit_memory(char* addr, size_t bytes,
+ bool executable = false);
+ static bool commit_memory(char* addr, size_t size, size_t alignment_hint,
+ bool executable = false);
static bool uncommit_memory(char* addr, size_t bytes);
static bool release_memory(char* addr, size_t bytes);
@@ -243,7 +245,8 @@
static char* non_memory_address_word();
// reserve, commit and pin the entire memory region
- static char* reserve_memory_special(size_t size);
+ static char* reserve_memory_special(size_t size, char* addr = NULL,
+ bool executable = false);
static bool release_memory_special(char* addr, size_t bytes);
static bool large_page_init();
static size_t large_page_size();
--- a/hotspot/src/share/vm/runtime/virtualspace.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/runtime/virtualspace.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -28,7 +28,7 @@
// ReservedSpace
ReservedSpace::ReservedSpace(size_t size) {
- initialize(size, 0, false, NULL, 0);
+ initialize(size, 0, false, NULL, 0, false);
}
ReservedSpace::ReservedSpace(size_t size, size_t alignment,
@@ -36,7 +36,13 @@
char* requested_address,
const size_t noaccess_prefix) {
initialize(size+noaccess_prefix, alignment, large, requested_address,
- noaccess_prefix);
+ noaccess_prefix, false);
+}
+
+ReservedSpace::ReservedSpace(size_t size, size_t alignment,
+ bool large,
+ bool executable) {
+ initialize(size, alignment, large, NULL, 0, executable);
}
char *
@@ -109,6 +115,7 @@
const size_t prefix_align,
const size_t suffix_size,
const size_t suffix_align,
+ char* requested_address,
const size_t noaccess_prefix)
{
assert(prefix_size != 0, "sanity");
@@ -131,7 +138,8 @@
const bool try_reserve_special = UseLargePages &&
prefix_align == os::large_page_size();
if (!os::can_commit_large_page_memory() && try_reserve_special) {
- initialize(size, prefix_align, true, NULL, noaccess_prefix);
+ initialize(size, prefix_align, true, requested_address, noaccess_prefix,
+ false);
return;
}
@@ -140,13 +148,20 @@
_alignment = 0;
_special = false;
_noaccess_prefix = 0;
+ _executable = false;
// Assert that if noaccess_prefix is used, it is the same as prefix_align.
assert(noaccess_prefix == 0 ||
noaccess_prefix == prefix_align, "noaccess prefix wrong");
// Optimistically try to reserve the exact size needed.
- char* addr = os::reserve_memory(size, NULL, prefix_align);
+ char* addr;
+ if (requested_address != 0) {
+ addr = os::attempt_reserve_memory_at(size,
+ requested_address-noaccess_prefix);
+ } else {
+ addr = os::reserve_memory(size, NULL, prefix_align);
+ }
if (addr == NULL) return;
// Check whether the result has the needed alignment (unlikely unless
@@ -182,7 +197,8 @@
void ReservedSpace::initialize(size_t size, size_t alignment, bool large,
char* requested_address,
- const size_t noaccess_prefix) {
+ const size_t noaccess_prefix,
+ bool executable) {
const size_t granularity = os::vm_allocation_granularity();
assert((size & granularity - 1) == 0,
"size not aligned to os::vm_allocation_granularity()");
@@ -194,6 +210,7 @@
_base = NULL;
_size = 0;
_special = false;
+ _executable = executable;
_alignment = 0;
_noaccess_prefix = 0;
if (size == 0) {
@@ -206,12 +223,8 @@
char* base = NULL;
if (special) {
- // It's not hard to implement reserve_memory_special() such that it can
- // allocate at fixed address, but there seems no use of this feature
- // for now, so it's not implemented.
- assert(requested_address == NULL, "not implemented");
- base = os::reserve_memory_special(size);
+ base = os::reserve_memory_special(size, requested_address, executable);
if (base != NULL) {
// Check alignment constraints
@@ -281,7 +294,7 @@
ReservedSpace::ReservedSpace(char* base, size_t size, size_t alignment,
- bool special) {
+ bool special, bool executable) {
assert((size % os::vm_allocation_granularity()) == 0,
"size not allocation aligned");
_base = base;
@@ -289,6 +302,7 @@
_alignment = alignment;
_noaccess_prefix = 0;
_special = special;
+ _executable = executable;
}
@@ -296,9 +310,10 @@
bool split, bool realloc) {
assert(partition_size <= size(), "partition failed");
if (split) {
- os::split_reserved_memory(_base, _size, partition_size, realloc);
+ os::split_reserved_memory(base(), size(), partition_size, realloc);
}
- ReservedSpace result(base(), partition_size, alignment, special());
+ ReservedSpace result(base(), partition_size, alignment, special(),
+ executable());
return result;
}
@@ -307,7 +322,7 @@
ReservedSpace::last_part(size_t partition_size, size_t alignment) {
assert(partition_size <= size(), "partition failed");
ReservedSpace result(base() + partition_size, size() - partition_size,
- alignment, special());
+ alignment, special(), executable());
return result;
}
@@ -345,6 +360,7 @@
_size = 0;
_noaccess_prefix = 0;
_special = false;
+ _executable = false;
}
}
@@ -372,7 +388,8 @@
bool large, char* requested_address) :
ReservedSpace(size, alignment, large,
requested_address,
- UseCompressedOops && UseImplicitNullCheckForNarrowOop ?
+ (UseCompressedOops && (Universe::narrow_oop_base() != NULL) &&
+ Universe::narrow_oop_use_implicit_null_checks()) ?
lcm(os::vm_page_size(), alignment) : 0) {
// Only reserved space for the java heap should have a noaccess_prefix
// if using compressed oops.
@@ -382,13 +399,24 @@
ReservedHeapSpace::ReservedHeapSpace(const size_t prefix_size,
const size_t prefix_align,
const size_t suffix_size,
- const size_t suffix_align) :
+ const size_t suffix_align,
+ char* requested_address) :
ReservedSpace(prefix_size, prefix_align, suffix_size, suffix_align,
- UseCompressedOops && UseImplicitNullCheckForNarrowOop ?
+ requested_address,
+ (UseCompressedOops && (Universe::narrow_oop_base() != NULL) &&
+ Universe::narrow_oop_use_implicit_null_checks()) ?
lcm(os::vm_page_size(), prefix_align) : 0) {
protect_noaccess_prefix(prefix_size+suffix_size);
}
+// Reserve space for code segment. Same as Java heap only we mark this as
+// executable.
+ReservedCodeSpace::ReservedCodeSpace(size_t r_size,
+ size_t rs_align,
+ bool large) :
+ ReservedSpace(r_size, rs_align, large, /*executable*/ true) {
+}
+
// VirtualSpace
VirtualSpace::VirtualSpace() {
@@ -406,6 +434,7 @@
_middle_alignment = 0;
_upper_alignment = 0;
_special = false;
+ _executable = false;
}
@@ -419,6 +448,7 @@
_high = low();
_special = rs.special();
+ _executable = rs.executable();
// When a VirtualSpace begins life at a large size, make all future expansion
// and shrinking occur aligned to a granularity of large pages. This avoids
@@ -476,6 +506,7 @@
_middle_alignment = 0;
_upper_alignment = 0;
_special = false;
+ _executable = false;
}
@@ -585,7 +616,7 @@
assert(low_boundary() <= lower_high() &&
lower_high() + lower_needs <= lower_high_boundary(),
"must not expand beyond region");
- if (!os::commit_memory(lower_high(), lower_needs)) {
+ if (!os::commit_memory(lower_high(), lower_needs, _executable)) {
debug_only(warning("os::commit_memory failed"));
return false;
} else {
@@ -596,7 +627,8 @@
assert(lower_high_boundary() <= middle_high() &&
middle_high() + middle_needs <= middle_high_boundary(),
"must not expand beyond region");
- if (!os::commit_memory(middle_high(), middle_needs, middle_alignment())) {
+ if (!os::commit_memory(middle_high(), middle_needs, middle_alignment(),
+ _executable)) {
debug_only(warning("os::commit_memory failed"));
return false;
}
@@ -606,7 +638,7 @@
assert(middle_high_boundary() <= upper_high() &&
upper_high() + upper_needs <= upper_high_boundary(),
"must not expand beyond region");
- if (!os::commit_memory(upper_high(), upper_needs)) {
+ if (!os::commit_memory(upper_high(), upper_needs, _executable)) {
debug_only(warning("os::commit_memory failed"));
return false;
} else {
--- a/hotspot/src/share/vm/runtime/virtualspace.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/runtime/virtualspace.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -32,12 +32,15 @@
size_t _noaccess_prefix;
size_t _alignment;
bool _special;
+ bool _executable;
// ReservedSpace
- ReservedSpace(char* base, size_t size, size_t alignment, bool special);
+ ReservedSpace(char* base, size_t size, size_t alignment, bool special,
+ bool executable);
void initialize(size_t size, size_t alignment, bool large,
char* requested_address,
- const size_t noaccess_prefix);
+ const size_t noaccess_prefix,
+ bool executable);
// Release parts of an already-reserved memory region [addr, addr + len) to
// get a new region that has "compound alignment." Return the start of the
@@ -73,17 +76,18 @@
const size_t noaccess_prefix = 0);
ReservedSpace(const size_t prefix_size, const size_t prefix_align,
const size_t suffix_size, const size_t suffix_align,
- const size_t noaccess_prefix);
+ char* requested_address,
+ const size_t noaccess_prefix = 0);
+ ReservedSpace(size_t size, size_t alignment, bool large, bool executable);
// Accessors
- char* base() const { return _base; }
- size_t size() const { return _size; }
- size_t alignment() const { return _alignment; }
- bool special() const { return _special; }
-
- size_t noaccess_prefix() const { return _noaccess_prefix; }
-
- bool is_reserved() const { return _base != NULL; }
+ char* base() const { return _base; }
+ size_t size() const { return _size; }
+ size_t alignment() const { return _alignment; }
+ bool special() const { return _special; }
+ bool executable() const { return _executable; }
+ size_t noaccess_prefix() const { return _noaccess_prefix; }
+ bool is_reserved() const { return _base != NULL; }
void release();
// Splitting
@@ -121,7 +125,15 @@
ReservedHeapSpace(size_t size, size_t forced_base_alignment,
bool large, char* requested_address);
ReservedHeapSpace(const size_t prefix_size, const size_t prefix_align,
- const size_t suffix_size, const size_t suffix_align);
+ const size_t suffix_size, const size_t suffix_align,
+ char* requested_address);
+};
+
+// Class encapsulating behavior specific memory space for Code
+class ReservedCodeSpace : public ReservedSpace {
+ public:
+ // Constructor
+ ReservedCodeSpace(size_t r_size, size_t rs_align, bool large);
};
// VirtualSpace is data structure for committing a previously reserved address range in smaller chunks.
@@ -141,6 +153,9 @@
// os::commit_memory() or os::uncommit_memory().
bool _special;
+ // Need to know if commit should be executable.
+ bool _executable;
+
// MPSS Support
// Each virtualspace region has a lower, middle, and upper region.
// Each region has an end boundary and a high pointer which is the
--- a/hotspot/src/share/vm/runtime/vmStructs.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/runtime/vmStructs.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -263,7 +263,9 @@
static_field(Universe, _bootstrapping, bool) \
static_field(Universe, _fully_initialized, bool) \
static_field(Universe, _verify_count, int) \
- static_field(Universe, _heap_base, address) \
+ static_field(Universe, _narrow_oop._base, address) \
+ static_field(Universe, _narrow_oop._shift, int) \
+ static_field(Universe, _narrow_oop._use_implicit_null_checks, bool) \
\
/**********************************************************************************/ \
/* Generation and Space hierarchies */ \
--- a/hotspot/src/share/vm/runtime/vm_version.cpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/runtime/vm_version.cpp Wed Jul 05 16:49:40 2017 +0200
@@ -163,9 +163,11 @@
#elif _MSC_VER == 1200
#define HOTSPOT_BUILD_COMPILER "MS VC++ 6.0"
#elif _MSC_VER == 1310
- #define HOTSPOT_BUILD_COMPILER "MS VC++ 7.1"
+ #define HOTSPOT_BUILD_COMPILER "MS VC++ 7.1 (VS2003)"
#elif _MSC_VER == 1400
- #define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0"
+ #define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0 (VS2005)"
+ #elif _MSC_VER == 1500
+ #define HOTSPOT_BUILD_COMPILER "MS VC++ 9.0 (VS2008)"
#else
#define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
#endif
--- a/hotspot/src/share/vm/utilities/globalDefinitions_visCPP.hpp Fri Mar 27 14:11:31 2009 -0700
+++ b/hotspot/src/share/vm/utilities/globalDefinitions_visCPP.hpp Wed Jul 05 16:49:40 2017 +0200
@@ -153,16 +153,8 @@
//----------------------------------------------------------------------------------------------------
// Miscellaneous
-inline int vsnprintf(char* buf, size_t count, const char* fmt, va_list argptr) {
- // If number of characters written == count, Windows doesn't write a
- // terminating NULL, so we do it ourselves.
- int ret = _vsnprintf(buf, count, fmt, argptr);
- if (count > 0) buf[count-1] = '\0';
- return ret;
-}
-
// Visual Studio 2005 deprecates POSIX names - use ISO C++ names instead
-#if _MSC_VER >= 1400 && !defined(_WIN64)
+#if _MSC_VER >= 1400
#define open _open
#define close _close
#define read _read
@@ -180,6 +172,17 @@
#pragma warning( disable : 4201 ) // nonstandard extension used : nameless struct/union (needed in windows.h)
#pragma warning( disable : 4511 ) // copy constructor could not be generated
#pragma warning( disable : 4291 ) // no matching operator delete found; memory will not be freed if initialization thows an exception
+#if _MSC_VER >= 1400
+#pragma warning( disable : 4996 ) // unsafe string functions. Same as define _CRT_SECURE_NO_WARNINGS/_CRT_SECURE_NO_DEPRICATE
+#endif
+
+inline int vsnprintf(char* buf, size_t count, const char* fmt, va_list argptr) {
+ // If number of characters written == count, Windows doesn't write a
+ // terminating NULL, so we do it ourselves.
+ int ret = _vsnprintf(buf, count, fmt, argptr);
+ if (count > 0) buf[count-1] = '\0';
+ return ret;
+}
// Portability macros
#define PRAGMA_INTERFACE
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/6378821/Test6378821.java Wed Jul 05 16:49:40 2017 +0200
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2009 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/**
+ * @test
+ * @bug 6378821
+ * @summary where available, bitCount() should use POPC on SPARC processors and AMD+10h
+ *
+ * @run main/othervm -Xcomp -XX:CompileOnly=Test6378821.fcomp Test6378821
+ */
+
+public class Test6378821 {
+ static final int[] ia = new int[] { 0x12345678 };
+ static final long[] la = new long[] { 0x12345678abcdefL };
+
+ public static void main(String [] args) {
+ // Resolve the class and the method.
+ Integer.bitCount(1);
+ Long.bitCount(1);
+
+ sub(ia[0]);
+ sub(la[0]);
+ sub(ia);
+ sub(la);
+ }
+
+ static void check(int i, int expected, int result) {
+ if (result != expected) {
+ throw new InternalError("Wrong population count for " + i + ": " + result + " != " + expected);
+ }
+ }
+
+ static void check(long l, int expected, int result) {
+ if (result != expected) {
+ throw new InternalError("Wrong population count for " + l + ": " + result + " != " + expected);
+ }
+ }
+
+ static void sub(int i) { check(i, fint(i), fcomp(i) ); }
+ static void sub(int[] ia) { check(ia[0], fint(ia), fcomp(ia)); }
+ static void sub(long l) { check(l, fint(l), fcomp(l) ); }
+ static void sub(long[] la) { check(la[0], fint(la), fcomp(la)); }
+
+ static int fint (int i) { return Integer.bitCount(i); }
+ static int fcomp(int i) { return Integer.bitCount(i); }
+
+ static int fint (int[] ia) { return Integer.bitCount(ia[0]); }
+ static int fcomp(int[] ia) { return Integer.bitCount(ia[0]); }
+
+ static int fint (long l) { return Long.bitCount(l); }
+ static int fcomp(long l) { return Long.bitCount(l); }
+
+ static int fint (long[] la) { return Long.bitCount(la[0]); }
+ static int fcomp(long[] la) { return Long.bitCount(la[0]); }
+}