--- a/.hgtags-top-repo Wed Jul 05 16:56:12 2017 +0200
+++ b/.hgtags-top-repo Wed Jul 05 16:56:36 2017 +0200
@@ -38,3 +38,4 @@
472c21584cfd7e9c0229ad6a100366a5c03d2976 jdk7-b61
c7ed15ab92ce36a09d264a5e34025884b2d7607f jdk7-b62
57f7e028c7ad1806500ae89eb3f4cd9a51b10e18 jdk7-b63
+269c1ec4435dfb7b452ae6e3bdde005d55c5c830 jdk7-b64
--- a/README-builds.html Wed Jul 05 16:56:12 2017 +0200
+++ b/README-builds.html Wed Jul 05 16:56:36 2017 +0200
@@ -120,6 +120,7 @@
<th>Base OS and Architecture</th>
<th>OS</th>
<th>C/C++ Compiler</th>
+ <th>BOOT JDK</th>
</tr>
</thead>
<tbody>
@@ -127,57 +128,65 @@
<td>Linux X86 (32-bit)</td>
<td>Fedora 9</td>
<td>gcc 4 </td>
+ <td>JDK 6u14 FCS </td>
</tr>
<tr>
<td>Linux X64 (64-bit)</td>
<td>Fedora 9</td>
<td>gcc 4 </td>
+ <td>JDK 6u14 FCS </td>
</tr>
<tr>
<td>Solaris SPARC (32-bit)</td>
- <td>Solaris 10 + patches
+ <td>Solaris 10u2 + patches
<br>
See <a href="http://sunsolve.sun.com/pub-cgi/show.pl?target=patches/JavaSE" target="_blank">
SunSolve</a> for patch downloads.
</td>
<td>Sun Studio 12</td>
+ <td>JDK 6u14 FCS </td>
</tr>
<tr>
<td>Solaris SPARCV9 (64-bit)</td>
- <td>Solaris 10 + patches
+ <td>Solaris 10u2 + patches
<br>
See <a href="http://sunsolve.sun.com/pub-cgi/show.pl?target=patches/JavaSE" target="_blank">
SunSolve</a> for patch downloads.
</td>
<td>Sun Studio 12</td>
+ <td>JDK 6u14 FCS </td>
</tr>
<tr>
<td>Solaris X86 (32-bit)</td>
- <td>Solaris 10 + patches
+ <td>Solaris 10u2 + patches
<br>
See <a href="http://sunsolve.sun.com/pub-cgi/show.pl?target=patches/JavaSE" target="_blank">
SunSolve</a> for patch downloads.
</td>
<td>Sun Studio 12</td>
+ <td>JDK 6u14 FCS </td>
</tr>
<tr>
<td>Solaris X64 (64-bit)</td>
- <td>Solaris 10 + patches
+ <td>Solaris 10u2 + patches
<br>
See <a href="http://sunsolve.sun.com/pub-cgi/show.pl?target=patches/JavaSE" target="_blank">
SunSolve</a> for patch downloads.
</td>
<td>Sun Studio 12</td>
+ <td>JDK 6u14 FCS </td>
</tr>
<tr>
<td>Windows X86 (32-bit)</td>
<td>Windows XP</td>
<td>Microsoft Visual Studio C++ 2008 Standard Edition</td>
+ <td>JDK 6u14 FCS </td>
</tr>
<tr>
<td>Windows X64 (64-bit)</td>
<td>Windows Server 2003 - Enterprise x64 Edition</td>
<td>Microsoft Platform SDK - April 2005</td>
+ <td>JDK 6u14 FCS </td>
</tr>
</tbody>
</table>
--- a/corba/.hgtags Wed Jul 05 16:56:12 2017 +0200
+++ b/corba/.hgtags Wed Jul 05 16:56:36 2017 +0200
@@ -38,3 +38,4 @@
e906b16a12a9a63b615898afa5d9673cbd1c5ab8 jdk7-b61
65b66117dbd70a493e9644aeb4033cf95a4e3c99 jdk7-b62
d20e45cd539f20405ff843652069cfd7550c5ab3 jdk7-b63
+047dd27fddb607f8135296b3754131f6e13cb8c7 jdk7-b64
--- a/hotspot/.hgtags Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/.hgtags Wed Jul 05 16:56:36 2017 +0200
@@ -38,3 +38,4 @@
27b728fd1281ab62e9d7e4424f8bbb6ca438d803 jdk7-b61
a88386380bdaaa5ab4ffbedf22c57bac5dbec034 jdk7-b62
32c83fb84370a35344676991a48440378e6b6c8a jdk7-b63
+ba36394eb84b949b31212bdb32a518a8f92bab5b jdk7-b64
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/code/DebugInfoReadStream.java Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/code/DebugInfoReadStream.java Wed Jul 05 16:56:36 2017 +0200
@@ -24,23 +24,64 @@
package sun.jvm.hotspot.code;
+import java.util.*;
+
import sun.jvm.hotspot.debugger.*;
import sun.jvm.hotspot.runtime.VM;
+import sun.jvm.hotspot.utilities.*;
public class DebugInfoReadStream extends CompressedReadStream {
private NMethod code;
private int InvocationEntryBCI;
+ private List objectPool; // ArrayList<ObjectValue>
public DebugInfoReadStream(NMethod code, int offset) {
super(code.scopesDataBegin(), offset);
InvocationEntryBCI = VM.getVM().getInvocationEntryBCI();
this.code = code;
+ this.objectPool = null;
+ }
+
+ public DebugInfoReadStream(NMethod code, int offset, List objectPool) {
+ super(code.scopesDataBegin(), offset);
+ InvocationEntryBCI = VM.getVM().getInvocationEntryBCI();
+ this.code = code;
+ this.objectPool = objectPool;
}
public OopHandle readOopHandle() {
return code.getOopAt(readInt());
}
+ ScopeValue readObjectValue() {
+ int id = readInt();
+ if (Assert.ASSERTS_ENABLED) {
+ Assert.that(objectPool != null, "object pool does not exist");
+ for (Iterator itr = objectPool.iterator(); itr.hasNext();) {
+ ObjectValue ov = (ObjectValue) itr.next();
+ Assert.that(ov.id() != id, "should not be read twice");
+ }
+ }
+ ObjectValue result = new ObjectValue(id);
+ // Cache the object since an object field could reference it.
+ objectPool.add(result);
+ result.readObject(this);
+ return result;
+ }
+
+ ScopeValue getCachedObject() {
+ int id = readInt();
+ Assert.that(objectPool != null, "object pool does not exist");
+ for (Iterator itr = objectPool.iterator(); itr.hasNext();) {
+ ObjectValue ov = (ObjectValue) itr.next();
+ if (ov.id() == id) {
+ return ov;
+ }
+ }
+ Assert.that(false, "should not reach here");
+ return null;
+ }
+
public int readBCI() {
return readInt() + InvocationEntryBCI;
}
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/code/MonitorValue.java Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/code/MonitorValue.java Wed Jul 05 16:56:36 2017 +0200
@@ -29,6 +29,7 @@
public class MonitorValue {
private ScopeValue owner;
private Location basicLock;
+ private boolean eliminated;
// FIXME: not useful yet
// MonitorValue(ScopeValue* owner, Location basic_lock);
@@ -36,10 +37,12 @@
public MonitorValue(DebugInfoReadStream stream) {
basicLock = new Location(stream);
owner = ScopeValue.readFrom(stream);
+ eliminated= stream.readBoolean();
}
public ScopeValue owner() { return owner; }
public Location basicLock() { return basicLock; }
+ public boolean eliminated() { return eliminated; }
// FIXME: not yet implementable
// void write_on(DebugInfoWriteStream* stream);
@@ -50,5 +53,8 @@
tty.print(",");
basicLock().printOn(tty);
tty.print("}");
+ if (eliminated) {
+ tty.print(" (eliminated)");
+ }
}
}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/code/ObjectValue.java Wed Jul 05 16:56:36 2017 +0200
@@ -0,0 +1,93 @@
+/*
+ * 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.
+ *
+ */
+
+package sun.jvm.hotspot.code;
+
+import java.io.*;
+import java.util.*;
+
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.utilities.*;
+
+/** An ObjectValue describes an object eliminated by escape analysis. */
+
+public class ObjectValue extends ScopeValue {
+ private int id;
+ private ScopeValue klass;
+ private List fieldsValue; // ArrayList<ScopeValue>
+
+ // Field "boolean visited" is not implemented here since
+ // it is used only a during debug info creation.
+
+ public ObjectValue(int id) {
+ this.id = id;
+ klass = null;
+ fieldsValue = new ArrayList();
+ }
+
+ public boolean isObject() { return true; }
+ public int id() { return id; }
+ public ScopeValue getKlass() { return klass; }
+ public List getFieldsValue() { return fieldsValue; }
+ public ScopeValue getFieldAt(int i) { return (ScopeValue)fieldsValue.get(i); }
+ public int fieldsSize() { return fieldsValue.size(); }
+
+ // Field "value" is always NULL here since it is used
+ // only during deoptimization of a compiled frame
+ // pointing to reallocated object.
+ public OopHandle getValue() { return null; }
+
+ /** Serialization of debugging information */
+
+ void readObject(DebugInfoReadStream stream) {
+ klass = readFrom(stream);
+ Assert.that(klass.isConstantOop(), "should be constant klass oop");
+ int length = stream.readInt();
+ for (int i = 0; i < length; i++) {
+ ScopeValue val = readFrom(stream);
+ fieldsValue.add(val);
+ }
+ }
+
+ // Printing
+
+ public void print() {
+ printOn(System.out);
+ }
+
+ public void printOn(PrintStream tty) {
+ tty.print("scalarObj[" + id + "]");
+ }
+
+ void printFieldsOn(PrintStream tty) {
+ if (fieldsValue.size() > 0) {
+ ((ScopeValue)fieldsValue.get(0)).printOn(tty);
+ }
+ for (int i = 1; i < fieldsValue.size(); i++) {
+ tty.print(", ");
+ ((ScopeValue)fieldsValue.get(i)).printOn(tty);
+ }
+ }
+
+};
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/code/ScopeDesc.java Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/code/ScopeDesc.java Wed Jul 05 16:56:36 2017 +0200
@@ -27,8 +27,10 @@
import java.io.*;
import java.util.*;
+import sun.jvm.hotspot.debugger.*;
import sun.jvm.hotspot.oops.*;
import sun.jvm.hotspot.runtime.*;
+import sun.jvm.hotspot.utilities.*;
/** ScopeDescs contain the information that makes source-level
debugging of nmethods possible; each scopeDesc describes a method
@@ -45,10 +47,31 @@
private int localsDecodeOffset;
private int expressionsDecodeOffset;
private int monitorsDecodeOffset;
+ /** Scalar replaced bjects pool */
+ private List objects; // ArrayList<ScopeValue>
+
public ScopeDesc(NMethod code, int decodeOffset) {
this.code = code;
this.decodeOffset = decodeOffset;
+ this.objects = decodeObjectValues(DebugInformationRecorder.SERIALIZED_NULL);
+
+ // Decode header
+ DebugInfoReadStream stream = streamAt(decodeOffset);
+
+ senderDecodeOffset = stream.readInt();
+ method = (Method) VM.getVM().getObjectHeap().newOop(stream.readOopHandle());
+ bci = stream.readBCI();
+ // Decode offsets for body and sender
+ localsDecodeOffset = stream.readInt();
+ expressionsDecodeOffset = stream.readInt();
+ monitorsDecodeOffset = stream.readInt();
+ }
+
+ public ScopeDesc(NMethod code, int decodeOffset, int objectDecodeOffset) {
+ this.code = code;
+ this.decodeOffset = decodeOffset;
+ this.objects = decodeObjectValues(objectDecodeOffset);
// Decode header
DebugInfoReadStream stream = streamAt(decodeOffset);
@@ -81,6 +104,11 @@
return decodeMonitorValues(monitorsDecodeOffset);
}
+ /** Returns a List<MonitorValue> */
+ public List getObjects() {
+ return objects;
+ }
+
/** Stack walking. Returns null if this is the outermost scope. */
public ScopeDesc sender() {
if (isTop()) {
@@ -131,7 +159,7 @@
//
private DebugInfoReadStream streamAt(int decodeOffset) {
- return new DebugInfoReadStream(code, decodeOffset);
+ return new DebugInfoReadStream(code, decodeOffset, objects);
}
/** Returns a List<ScopeValue> or null if no values were present */
@@ -161,4 +189,22 @@
}
return res;
}
+
+ /** Returns a List<ObjectValue> or null if no values were present */
+ private List decodeObjectValues(int decodeOffset) {
+ if (decodeOffset == DebugInformationRecorder.SERIALIZED_NULL) {
+ return null;
+ }
+ List res = new ArrayList();
+ DebugInfoReadStream stream = new DebugInfoReadStream(code, decodeOffset, res);
+ int length = stream.readInt();
+ for (int i = 0; i < length; i++) {
+ // Objects values are pushed to 'res' array during read so that
+ // object's fields could reference it (OBJECT_ID_CODE).
+ ScopeValue.readFrom(stream);
+ // res.add(ScopeValue.readFrom(stream));
+ }
+ Assert.that(res.size() == length, "inconsistent debug information");
+ return res;
+ }
}
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/code/ScopeValue.java Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/code/ScopeValue.java Wed Jul 05 16:56:36 2017 +0200
@@ -49,12 +49,15 @@
static final int CONSTANT_OOP_CODE = 2;
static final int CONSTANT_LONG_CODE = 3;
static final int CONSTANT_DOUBLE_CODE = 4;
+ static final int CONSTANT_OBJECT_CODE = 5;
+ static final int CONSTANT_OBJECT_ID_CODE = 6;
public boolean isLocation() { return false; }
public boolean isConstantInt() { return false; }
public boolean isConstantDouble() { return false; }
public boolean isConstantLong() { return false; }
public boolean isConstantOop() { return false; }
+ public boolean isObject() { return false; }
public static ScopeValue readFrom(DebugInfoReadStream stream) {
switch (stream.readInt()) {
@@ -68,6 +71,10 @@
return new ConstantLongValue(stream);
case CONSTANT_DOUBLE_CODE:
return new ConstantDoubleValue(stream);
+ case CONSTANT_OBJECT_CODE:
+ return stream.readObjectValue();
+ case CONSTANT_OBJECT_ID_CODE:
+ return stream.getCachedObject();
default:
Assert.that(false, "should not reach here");
return null;
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/jdi/ObjectReferenceImpl.java Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/jdi/ObjectReferenceImpl.java Wed Jul 05 16:56:36 2017 +0200
@@ -249,6 +249,7 @@
OopHandle givenHandle = obj.getHandle();
for (Iterator itr = monitors.iterator(); itr.hasNext();) {
MonitorInfo mi = (MonitorInfo) itr.next();
+ if (mi.eliminated() && frame.isCompiledFrame()) continue; // skip eliminated monitor
if (givenHandle.equals(mi.owner())) {
res++;
}
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/jdi/ThreadReferenceImpl.java Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/jdi/ThreadReferenceImpl.java Wed Jul 05 16:56:36 2017 +0200
@@ -301,6 +301,9 @@
List frameMonitors = frame.getMonitors(); // List<MonitorInfo>
for (Iterator miItr = frameMonitors.iterator(); miItr.hasNext(); ) {
sun.jvm.hotspot.runtime.MonitorInfo mi = (sun.jvm.hotspot.runtime.MonitorInfo) miItr.next();
+ if (mi.eliminated() && frame.isCompiledFrame()) {
+ continue; // skip eliminated monitor
+ }
OopHandle obj = mi.owner();
if (obj == null) {
// this monitor doesn't have an owning object so skip it
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/CompiledVFrame.java Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/CompiledVFrame.java Wed Jul 05 16:56:36 2017 +0200
@@ -131,8 +131,18 @@
List result = new ArrayList(monitors.size());
for (int i = 0; i < monitors.size(); i++) {
MonitorValue mv = (MonitorValue) monitors.get(i);
- StackValue ownerSV = createStackValue(mv.owner()); // it is an oop
- result.add(new MonitorInfo(ownerSV.getObject(), resolveMonitorLock(mv.basicLock())));
+ ScopeValue ov = mv.owner();
+ StackValue ownerSV = createStackValue(ov); // it is an oop
+ if (ov.isObject()) { // The owner object was scalar replaced
+ Assert.that(mv.eliminated() && ownerSV.objIsScalarReplaced(), "monitor should be eliminated for scalar replaced object");
+ // Put klass for scalar replaced object.
+ ScopeValue kv = ((ObjectValue)ov).getKlass();
+ Assert.that(kv.isConstantOop(), "klass should be oop constant for scalar replaced object");
+ OopHandle k = ((ConstantOopReadValue)kv).getValue();
+ result.add(new MonitorInfo(k, resolveMonitorLock(mv.basicLock()), mv.eliminated(), true));
+ } else {
+ result.add(new MonitorInfo(ownerSV.getObject(), resolveMonitorLock(mv.basicLock()), mv.eliminated(), false));
+ }
}
return result;
}
@@ -212,12 +222,12 @@
// long or is unused. He always saves a long. Here we know
// a long was saved, but we only want an narrow oop back. Narrow the
// saved long to the narrow oop that the JVM wants.
- return new StackValue(valueAddr.getCompOopHandleAt(VM.getVM().getIntSize()));
+ return new StackValue(valueAddr.getCompOopHandleAt(VM.getVM().getIntSize()), 0);
} else {
- return new StackValue(valueAddr.getCompOopHandleAt(0));
+ return new StackValue(valueAddr.getCompOopHandleAt(0), 0);
}
} else if( loc.holdsOop() ) { // Holds an oop?
- return new StackValue(valueAddr.getOopHandleAt(0));
+ return new StackValue(valueAddr.getOopHandleAt(0), 0);
} else if( loc.holdsDouble() ) {
// Double value in a single stack slot
return new StackValue(valueAddr.getJIntAt(0) & 0xFFFFFFFF);
@@ -277,7 +287,7 @@
return new StackValue(((ConstantIntValue) sv).getValue() & 0xFFFFFFFF);
} else if (sv.isConstantOop()) {
// constant oop
- return new StackValue(((ConstantOopReadValue) sv).getValue());
+ return new StackValue(((ConstantOopReadValue) sv).getValue(), 0);
} else if (sv.isConstantDouble()) {
// Constant double in a single stack slot
double d = ((ConstantDoubleValue) sv).getValue();
@@ -285,6 +295,9 @@
} else if (VM.getVM().isLP64() && sv.isConstantLong()) {
// Constant long in a single stack slot
return new StackValue(((ConstantLongValue) sv).getValue() & 0xFFFFFFFF);
+ } else if (sv.isObject()) {
+ // Scalar replaced object in compiled frame
+ return new StackValue(((ObjectValue)sv).getValue(), 1);
}
// Unknown ScopeValue type
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/InterpretedVFrame.java Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/InterpretedVFrame.java Wed Jul 05 16:56:36 2017 +0200
@@ -61,7 +61,7 @@
StackValue sv;
if (oopMask.isOop(i)) {
// oop value
- sv = new StackValue(addr.getOopHandleAt(0));
+ sv = new StackValue(addr.getOopHandleAt(0), 0);
} else {
// integer
// Fetch a signed integer the size of a stack slot
@@ -95,7 +95,7 @@
StackValue sv;
if (oopMask.isOop(i + nofLocals)) {
// oop value
- sv = new StackValue(addr.getOopHandleAt(0));
+ sv = new StackValue(addr.getOopHandleAt(0), 0);
} else {
// integer
// Fetch a signed integer the size of a stack slot
@@ -113,7 +113,7 @@
for (BasicObjectLock current = getFrame().interpreterFrameMonitorEnd();
current.address().lessThan(getFrame().interpreterFrameMonitorBegin().address());
current = getFrame().nextMonitorInInterpreterFrame(current)) {
- result.add(new MonitorInfo(current.obj(), current.lock()));
+ result.add(new MonitorInfo(current.obj(), current.lock(), false, false));
}
return result;
}
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/MonitorInfo.java Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/MonitorInfo.java Wed Jul 05 16:56:36 2017 +0200
@@ -25,16 +25,39 @@
package sun.jvm.hotspot.runtime;
import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.utilities.*;
public class MonitorInfo {
private OopHandle owner;
private BasicLock lock;
+ private OopHandle ownerKlass;
+ private boolean eliminated;
+ private boolean ownerIsScalarReplaced;
- public MonitorInfo(OopHandle owner, BasicLock lock) {
- this.owner = owner;
- this.lock = lock;
+ public MonitorInfo(OopHandle owner, BasicLock lock, boolean eliminated, boolean ownerIsScalarReplaced) {
+ if (!ownerIsScalarReplaced) {
+ this.owner = owner;
+ this.ownerKlass = null;
+ } else {
+ Assert.that(eliminated, "monitor should be eliminated for scalar replaced object");
+ this.owner = null;
+ this.ownerKlass = owner;
+ }
+ this.eliminated = eliminated;
+ this.ownerIsScalarReplaced = ownerIsScalarReplaced;
}
- public OopHandle owner() { return owner; }
+ public OopHandle owner() {
+ Assert.that(!ownerIsScalarReplaced, "should not be called for scalar replaced object");
+ return owner;
+ }
+
+ public OopHandle ownerKlass() {
+ Assert.that(ownerIsScalarReplaced, "should not be called for not scalar replaced object");
+ return ownerKlass;
+ }
+
public BasicLock lock() { return lock; }
+ public boolean eliminated() { return eliminated; }
+ public boolean ownerIsScalarReplaced() { return ownerIsScalarReplaced; }
}
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/StackValue.java Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/StackValue.java Wed Jul 05 16:56:36 2017 +0200
@@ -37,9 +37,11 @@
type = BasicType.getTConflict();
}
- public StackValue(OopHandle h) {
+ public StackValue(OopHandle h, long scalar_replaced) {
handleValue = h;
type = BasicType.getTObject();
+ integerValue = scalar_replaced;
+ Assert.that(integerValue == 0 || handleValue == null, "not null object should not be marked as scalar replaced");
}
public StackValue(long i) {
@@ -59,6 +61,13 @@
return handleValue;
}
+ boolean objIsScalarReplaced() {
+ if (Assert.ASSERTS_ENABLED) {
+ Assert.that(type == BasicType.getTObject(), "type check");
+ }
+ return integerValue != 0;
+ }
+
public long getInteger() {
if (Assert.ASSERTS_ENABLED) {
Assert.that(type == BasicType.getTInt(), "type check");
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/ui/tree/OopTreeNodeAdapter.java Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/ui/tree/OopTreeNodeAdapter.java Wed Jul 05 16:56:36 2017 +0200
@@ -161,6 +161,8 @@
child = new OopTreeNodeAdapter(field.getValue(getObj()), field.getID(), getTreeTableMode());
} catch (AddressException e) {
child = new BadOopTreeNodeAdapter(field.getValueAsOopHandle(getObj()), field.getID(), getTreeTableMode());
+ } catch (UnknownOopException e) {
+ child = new BadOopTreeNodeAdapter(field.getValueAsOopHandle(getObj()), field.getID(), getTreeTableMode());
}
}
++curField;
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/utilities/soql/JSJavaThread.java Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/utilities/soql/JSJavaThread.java Wed Jul 05 16:56:36 2017 +0200
@@ -135,6 +135,10 @@
List frameMonitors = frame.getMonitors(); // List<MonitorInfo>
for (Iterator miItr = frameMonitors.iterator(); miItr.hasNext(); ) {
MonitorInfo mi = (MonitorInfo) miItr.next();
+
+ if (mi.eliminated() && frame.isCompiledFrame()) {
+ continue; // skip eliminated monitor
+ }
OopHandle obj = mi.owner();
if (obj == null) {
// this monitor doesn't have an owning object so skip it
--- a/hotspot/make/hotspot_version Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/make/hotspot_version Wed Jul 05 16:56:36 2017 +0200
@@ -35,7 +35,7 @@
HS_MAJOR_VER=16
HS_MINOR_VER=0
-HS_BUILD_NUMBER=05
+HS_BUILD_NUMBER=06
JDK_MAJOR_VER=1
JDK_MINOR_VER=7
--- a/hotspot/make/solaris/makefiles/adlc.make Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/make/solaris/makefiles/adlc.make Wed Jul 05 16:56:36 2017 +0200
@@ -68,7 +68,9 @@
# CFLAGS_WARN holds compiler options to suppress/enable warnings.
# Compiler warnings are treated as errors
-CFLAGS_WARN = +w -errwarn
+ifeq ($(shell expr $(COMPILER_REV_NUMERIC) \>= 509), 1)
+ CFLAGS_WARN = +w -errwarn
+endif
CFLAGS += $(CFLAGS_WARN)
ifeq ("${Platform_compiler}", "sparcWorks")
--- a/hotspot/make/solaris/makefiles/optimized.make Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/make/solaris/makefiles/optimized.make Wed Jul 05 16:56:36 2017 +0200
@@ -41,7 +41,7 @@
endif
# Workaround SS11 bug 6345274 (all platforms) (Fixed in SS11 patch and SS12)
-ifeq ($(COMPILER_REV_NUMERIC),508))
+ifeq ($(COMPILER_REV_NUMERIC),508)
OPT_CFLAGS/ciTypeFlow.o = $(OPT_CFLAGS/O2)
endif # COMPILER_REV_NUMERIC == 508
--- a/hotspot/src/cpu/sparc/vm/c1_LIRGenerator_sparc.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/cpu/sparc/vm/c1_LIRGenerator_sparc.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -371,7 +371,7 @@
}
__ move(value.result(), array_addr, null_check_info);
if (obj_store) {
- // Is this precise?
+ // Precise card mark
post_barrier(LIR_OprFact::address(array_addr), value.result());
}
}
@@ -685,11 +685,8 @@
LIR_Opr result = rlock_result(x);
__ cmove(lir_cond_equal, LIR_OprFact::intConst(1), LIR_OprFact::intConst(0), result);
if (type == objectType) { // Write-barrier needed for Object fields.
-#ifdef PRECISE_CARDMARK
+ // Precise card mark since could either be object or array
post_barrier(addr, val.result());
-#else
- post_barrier(obj.result(), val.result());
-#endif // PRECISE_CARDMARK
}
}
--- a/hotspot/src/cpu/sparc/vm/sparc.ad Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/cpu/sparc/vm/sparc.ad Wed Jul 05 16:56:36 2017 +0200
@@ -1891,17 +1891,17 @@
// The intptr_t operand types, defined by textual substitution.
// (Cf. opto/type.hpp. This lets us avoid many, many other ifdefs.)
#ifdef _LP64
-#define immX immL
-#define immX13 immL13
-#define immX13m7 immL13m7
-#define iRegX iRegL
-#define g1RegX g1RegL
+#define immX immL
+#define immX13 immL13
+#define immX13m7 immL13m7
+#define iRegX iRegL
+#define g1RegX g1RegL
#else
-#define immX immI
-#define immX13 immI13
-#define immX13m7 immI13m7
-#define iRegX iRegI
-#define g1RegX g1RegI
+#define immX immI
+#define immX13 immI13
+#define immX13m7 immI13m7
+#define iRegX iRegI
+#define g1RegX g1RegI
#endif
//----------ENCODING BLOCK-----------------------------------------------------
@@ -3446,6 +3446,15 @@
interface(CONST_INTER);
%}
+// Integer Immediate: 8-bit
+operand immI8() %{
+ predicate(Assembler::is_simm(n->get_int(), 8));
+ match(ConI);
+ op_cost(0);
+ format %{ %}
+ interface(CONST_INTER);
+%}
+
// Integer Immediate: 13-bit
operand immI13() %{
predicate(Assembler::is_simm13(n->get_int()));
@@ -3466,6 +3475,15 @@
interface(CONST_INTER);
%}
+// Integer Immediate: 16-bit
+operand immI16() %{
+ predicate(Assembler::is_simm(n->get_int(), 16));
+ match(ConI);
+ op_cost(0);
+ format %{ %}
+ interface(CONST_INTER);
+%}
+
// Unsigned (positive) Integer Immediate: 13-bit
operand immU13() %{
predicate((0 <= n->get_int()) && Assembler::is_simm13(n->get_int()));
@@ -5544,7 +5562,7 @@
ins_encode %{
__ ldub($mem$$Address, $dst$$Register);
%}
- ins_pipe(iload_mask_mem);
+ ins_pipe(iload_mem);
%}
// Load Unsigned Byte (8bit UNsigned) into a Long Register
@@ -5557,7 +5575,22 @@
ins_encode %{
__ ldub($mem$$Address, $dst$$Register);
%}
- ins_pipe(iload_mask_mem);
+ ins_pipe(iload_mem);
+%}
+
+// Load Unsigned Byte (8 bit UNsigned) with 8-bit mask into Long Register
+instruct loadUB2L_immI8(iRegL dst, memory mem, immI8 mask) %{
+ match(Set dst (ConvI2L (AndI (LoadUB mem) mask)));
+ ins_cost(MEMORY_REF_COST + DEFAULT_COST);
+
+ size(2*4);
+ format %{ "LDUB $mem,$dst\t# ubyte & 8-bit mask -> long\n\t"
+ "AND $dst,$mask,$dst" %}
+ ins_encode %{
+ __ ldub($mem$$Address, $dst$$Register);
+ __ and3($dst$$Register, $mask$$constant, $dst$$Register);
+ %}
+ ins_pipe(iload_mem);
%}
// Load Short (16bit signed)
@@ -5610,7 +5643,7 @@
ins_encode %{
__ lduh($mem$$Address, $dst$$Register);
%}
- ins_pipe(iload_mask_mem);
+ ins_pipe(iload_mem);
%}
// Load Unsigned Short/Char (16 bit UNsigned) to Byte (8 bit signed)
@@ -5636,7 +5669,56 @@
ins_encode %{
__ lduh($mem$$Address, $dst$$Register);
%}
- ins_pipe(iload_mask_mem);
+ ins_pipe(iload_mem);
+%}
+
+// Load Unsigned Short/Char (16bit UNsigned) with mask 0xFF into a Long Register
+instruct loadUS2L_immI_255(iRegL dst, indOffset13m7 mem, immI_255 mask) %{
+ match(Set dst (ConvI2L (AndI (LoadUS mem) mask)));
+ ins_cost(MEMORY_REF_COST);
+
+ size(4);
+ format %{ "LDUB $mem+1,$dst\t! ushort/char & 0xFF -> long" %}
+ ins_encode %{
+ __ ldub($mem$$Address, $dst$$Register, 1); // LSB is index+1 on BE
+ %}
+ ins_pipe(iload_mem);
+%}
+
+// Load Unsigned Short/Char (16bit UNsigned) with a 13-bit mask into a Long Register
+instruct loadUS2L_immI13(iRegL dst, memory mem, immI13 mask) %{
+ match(Set dst (ConvI2L (AndI (LoadUS mem) mask)));
+ ins_cost(MEMORY_REF_COST + DEFAULT_COST);
+
+ size(2*4);
+ format %{ "LDUH $mem,$dst\t! ushort/char & 13-bit mask -> long\n\t"
+ "AND $dst,$mask,$dst" %}
+ ins_encode %{
+ Register Rdst = $dst$$Register;
+ __ lduh($mem$$Address, Rdst);
+ __ and3(Rdst, $mask$$constant, Rdst);
+ %}
+ ins_pipe(iload_mem);
+%}
+
+// Load Unsigned Short/Char (16bit UNsigned) with a 16-bit mask into a Long Register
+instruct loadUS2L_immI16(iRegL dst, memory mem, immI16 mask, iRegL tmp) %{
+ match(Set dst (ConvI2L (AndI (LoadUS mem) mask)));
+ effect(TEMP dst, TEMP tmp);
+ ins_cost(MEMORY_REF_COST + 2*DEFAULT_COST);
+
+ size(3*4);
+ format %{ "LDUH $mem,$dst\t! ushort/char & 16-bit mask -> long\n\t"
+ "SET $mask,$tmp\n\t"
+ "AND $dst,$tmp,$dst" %}
+ ins_encode %{
+ Register Rdst = $dst$$Register;
+ Register Rtmp = $tmp$$Register;
+ __ lduh($mem$$Address, Rdst);
+ __ set($mask$$constant, Rtmp);
+ __ and3(Rdst, Rtmp, Rdst);
+ %}
+ ins_pipe(iload_mem);
%}
// Load Integer
@@ -5718,6 +5800,68 @@
ins_encode %{
__ ldsw($mem$$Address, $dst$$Register);
%}
+ ins_pipe(iload_mask_mem);
+%}
+
+// Load Integer with mask 0xFF into a Long Register
+instruct loadI2L_immI_255(iRegL dst, indOffset13m7 mem, immI_255 mask) %{
+ match(Set dst (ConvI2L (AndI (LoadI mem) mask)));
+ ins_cost(MEMORY_REF_COST);
+
+ size(4);
+ format %{ "LDUB $mem+3,$dst\t! int & 0xFF -> long" %}
+ ins_encode %{
+ __ ldub($mem$$Address, $dst$$Register, 3); // LSB is index+3 on BE
+ %}
+ ins_pipe(iload_mem);
+%}
+
+// Load Integer with mask 0xFFFF into a Long Register
+instruct loadI2L_immI_65535(iRegL dst, indOffset13m7 mem, immI_65535 mask) %{
+ match(Set dst (ConvI2L (AndI (LoadI mem) mask)));
+ ins_cost(MEMORY_REF_COST);
+
+ size(4);
+ format %{ "LDUH $mem+2,$dst\t! int & 0xFFFF -> long" %}
+ ins_encode %{
+ __ lduh($mem$$Address, $dst$$Register, 2); // LSW is index+2 on BE
+ %}
+ ins_pipe(iload_mem);
+%}
+
+// Load Integer with a 13-bit mask into a Long Register
+instruct loadI2L_immI13(iRegL dst, memory mem, immI13 mask) %{
+ match(Set dst (ConvI2L (AndI (LoadI mem) mask)));
+ ins_cost(MEMORY_REF_COST + DEFAULT_COST);
+
+ size(2*4);
+ format %{ "LDUW $mem,$dst\t! int & 13-bit mask -> long\n\t"
+ "AND $dst,$mask,$dst" %}
+ ins_encode %{
+ Register Rdst = $dst$$Register;
+ __ lduw($mem$$Address, Rdst);
+ __ and3(Rdst, $mask$$constant, Rdst);
+ %}
+ ins_pipe(iload_mem);
+%}
+
+// Load Integer with a 32-bit mask into a Long Register
+instruct loadI2L_immI(iRegL dst, memory mem, immI mask, iRegL tmp) %{
+ match(Set dst (ConvI2L (AndI (LoadI mem) mask)));
+ effect(TEMP dst, TEMP tmp);
+ ins_cost(MEMORY_REF_COST + 2*DEFAULT_COST);
+
+ size(3*4);
+ format %{ "LDUW $mem,$dst\t! int & 32-bit mask -> long\n\t"
+ "SET $mask,$tmp\n\t"
+ "AND $dst,$tmp,$dst" %}
+ ins_encode %{
+ Register Rdst = $dst$$Register;
+ Register Rtmp = $tmp$$Register;
+ __ lduw($mem$$Address, Rdst);
+ __ set($mask$$constant, Rtmp);
+ __ and3(Rdst, Rtmp, Rdst);
+ %}
ins_pipe(iload_mem);
%}
--- a/hotspot/src/cpu/x86/vm/interp_masm_x86_32.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/cpu/x86/vm/interp_masm_x86_32.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -1372,6 +1372,8 @@
// If no method data exists, go to profile_continue.
test_method_data_pointer(mdp, profile_continue);
+ set_mdp_flag_at(mdp, BitData::null_seen_byte_constant());
+
// The method data pointer needs to be updated.
int mdp_delta = in_bytes(BitData::bit_data_size());
if (TypeProfileCasts) {
--- a/hotspot/src/cpu/x86/vm/interp_masm_x86_64.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/cpu/x86/vm/interp_masm_x86_64.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -1409,6 +1409,8 @@
// If no method data exists, go to profile_continue.
test_method_data_pointer(mdp, profile_continue);
+ set_mdp_flag_at(mdp, BitData::null_seen_byte_constant());
+
// The method data pointer needs to be updated.
int mdp_delta = in_bytes(BitData::bit_data_size());
if (TypeProfileCasts) {
--- a/hotspot/src/cpu/x86/vm/x86_32.ad Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/cpu/x86/vm/x86_32.ad Wed Jul 05 16:56:36 2017 +0200
@@ -6885,8 +6885,9 @@
%}
// Load Byte (8bit signed) into Long Register
-instruct loadB2L(eRegL dst, memory mem) %{
+instruct loadB2L(eRegL dst, memory mem, eFlagsReg cr) %{
match(Set dst (ConvI2L (LoadB mem)));
+ effect(KILL cr);
ins_cost(375);
format %{ "MOVSX8 $dst.lo,$mem\t# byte -> long\n\t"
@@ -6917,19 +6918,37 @@
%}
// Load Unsigned Byte (8 bit UNsigned) into Long Register
-instruct loadUB2L(eRegL dst, memory mem)
-%{
+instruct loadUB2L(eRegL dst, memory mem, eFlagsReg cr) %{
match(Set dst (ConvI2L (LoadUB mem)));
+ effect(KILL cr);
ins_cost(250);
format %{ "MOVZX8 $dst.lo,$mem\t# ubyte -> long\n\t"
"XOR $dst.hi,$dst.hi" %}
ins_encode %{
- __ movzbl($dst$$Register, $mem$$Address);
- __ xorl(HIGH_FROM_LOW($dst$$Register), HIGH_FROM_LOW($dst$$Register));
- %}
-
+ Register Rdst = $dst$$Register;
+ __ movzbl(Rdst, $mem$$Address);
+ __ xorl(HIGH_FROM_LOW(Rdst), HIGH_FROM_LOW(Rdst));
+ %}
+
+ ins_pipe(ialu_reg_mem);
+%}
+
+// Load Unsigned Byte (8 bit UNsigned) with mask into Long Register
+instruct loadUB2L_immI8(eRegL dst, memory mem, immI8 mask, eFlagsReg cr) %{
+ match(Set dst (ConvI2L (AndI (LoadUB mem) mask)));
+ effect(KILL cr);
+
+ format %{ "MOVZX8 $dst.lo,$mem\t# ubyte & 8-bit mask -> long\n\t"
+ "XOR $dst.hi,$dst.hi\n\t"
+ "AND $dst.lo,$mask" %}
+ ins_encode %{
+ Register Rdst = $dst$$Register;
+ __ movzbl(Rdst, $mem$$Address);
+ __ xorl(HIGH_FROM_LOW(Rdst), HIGH_FROM_LOW(Rdst));
+ __ andl(Rdst, $mask$$constant);
+ %}
ins_pipe(ialu_reg_mem);
%}
@@ -6960,8 +6979,9 @@
%}
// Load Short (16bit signed) into Long Register
-instruct loadS2L(eRegL dst, memory mem) %{
+instruct loadS2L(eRegL dst, memory mem, eFlagsReg cr) %{
match(Set dst (ConvI2L (LoadS mem)));
+ effect(KILL cr);
ins_cost(375);
format %{ "MOVSX $dst.lo,$mem\t# short -> long\n\t"
@@ -7004,8 +7024,9 @@
%}
// Load Unsigned Short/Char (16 bit UNsigned) into Long Register
-instruct loadUS2L(eRegL dst, memory mem) %{
+instruct loadUS2L(eRegL dst, memory mem, eFlagsReg cr) %{
match(Set dst (ConvI2L (LoadUS mem)));
+ effect(KILL cr);
ins_cost(250);
format %{ "MOVZX $dst.lo,$mem\t# ushort/char -> long\n\t"
@@ -7019,6 +7040,38 @@
ins_pipe(ialu_reg_mem);
%}
+// Load Unsigned Short/Char (16 bit UNsigned) with mask 0xFF into Long Register
+instruct loadUS2L_immI_255(eRegL dst, memory mem, immI_255 mask, eFlagsReg cr) %{
+ match(Set dst (ConvI2L (AndI (LoadUS mem) mask)));
+ effect(KILL cr);
+
+ format %{ "MOVZX8 $dst.lo,$mem\t# ushort/char & 0xFF -> long\n\t"
+ "XOR $dst.hi,$dst.hi" %}
+ ins_encode %{
+ Register Rdst = $dst$$Register;
+ __ movzbl(Rdst, $mem$$Address);
+ __ xorl(HIGH_FROM_LOW(Rdst), HIGH_FROM_LOW(Rdst));
+ %}
+ ins_pipe(ialu_reg_mem);
+%}
+
+// Load Unsigned Short/Char (16 bit UNsigned) with a 16-bit mask into Long Register
+instruct loadUS2L_immI16(eRegL dst, memory mem, immI16 mask, eFlagsReg cr) %{
+ match(Set dst (ConvI2L (AndI (LoadUS mem) mask)));
+ effect(KILL cr);
+
+ format %{ "MOVZX $dst.lo, $mem\t# ushort/char & 16-bit mask -> long\n\t"
+ "XOR $dst.hi,$dst.hi\n\t"
+ "AND $dst.lo,$mask" %}
+ ins_encode %{
+ Register Rdst = $dst$$Register;
+ __ movzwl(Rdst, $mem$$Address);
+ __ xorl(HIGH_FROM_LOW(Rdst), HIGH_FROM_LOW(Rdst));
+ __ andl(Rdst, $mask$$constant);
+ %}
+ ins_pipe(ialu_reg_mem);
+%}
+
// Load Integer
instruct loadI(eRegI dst, memory mem) %{
match(Set dst (LoadI mem));
@@ -7082,8 +7135,9 @@
%}
// Load Integer into Long Register
-instruct loadI2L(eRegL dst, memory mem) %{
+instruct loadI2L(eRegL dst, memory mem, eFlagsReg cr) %{
match(Set dst (ConvI2L (LoadI mem)));
+ effect(KILL cr);
ins_cost(375);
format %{ "MOV $dst.lo,$mem\t# int -> long\n\t"
@@ -7099,9 +7153,57 @@
ins_pipe(ialu_reg_mem);
%}
+// Load Integer with mask 0xFF into Long Register
+instruct loadI2L_immI_255(eRegL dst, memory mem, immI_255 mask, eFlagsReg cr) %{
+ match(Set dst (ConvI2L (AndI (LoadI mem) mask)));
+ effect(KILL cr);
+
+ format %{ "MOVZX8 $dst.lo,$mem\t# int & 0xFF -> long\n\t"
+ "XOR $dst.hi,$dst.hi" %}
+ ins_encode %{
+ Register Rdst = $dst$$Register;
+ __ movzbl(Rdst, $mem$$Address);
+ __ xorl(HIGH_FROM_LOW(Rdst), HIGH_FROM_LOW(Rdst));
+ %}
+ ins_pipe(ialu_reg_mem);
+%}
+
+// Load Integer with mask 0xFFFF into Long Register
+instruct loadI2L_immI_65535(eRegL dst, memory mem, immI_65535 mask, eFlagsReg cr) %{
+ match(Set dst (ConvI2L (AndI (LoadI mem) mask)));
+ effect(KILL cr);
+
+ format %{ "MOVZX $dst.lo,$mem\t# int & 0xFFFF -> long\n\t"
+ "XOR $dst.hi,$dst.hi" %}
+ ins_encode %{
+ Register Rdst = $dst$$Register;
+ __ movzwl(Rdst, $mem$$Address);
+ __ xorl(HIGH_FROM_LOW(Rdst), HIGH_FROM_LOW(Rdst));
+ %}
+ ins_pipe(ialu_reg_mem);
+%}
+
+// Load Integer with 32-bit mask into Long Register
+instruct loadI2L_immI(eRegL dst, memory mem, immI mask, eFlagsReg cr) %{
+ match(Set dst (ConvI2L (AndI (LoadI mem) mask)));
+ effect(KILL cr);
+
+ format %{ "MOV $dst.lo,$mem\t# int & 32-bit mask -> long\n\t"
+ "XOR $dst.hi,$dst.hi\n\t"
+ "AND $dst.lo,$mask" %}
+ ins_encode %{
+ Register Rdst = $dst$$Register;
+ __ movl(Rdst, $mem$$Address);
+ __ xorl(HIGH_FROM_LOW(Rdst), HIGH_FROM_LOW(Rdst));
+ __ andl(Rdst, $mask$$constant);
+ %}
+ ins_pipe(ialu_reg_mem);
+%}
+
// Load Unsigned Integer into Long Register
-instruct loadUI2L(eRegL dst, memory mem) %{
+instruct loadUI2L(eRegL dst, memory mem, eFlagsReg cr) %{
match(Set dst (LoadUI2L mem));
+ effect(KILL cr);
ins_cost(250);
format %{ "MOV $dst.lo,$mem\t# uint -> long\n\t"
@@ -7695,6 +7797,17 @@
ins_pipe( ialu_mem_long_reg );
%}
+// Store Long to Integer
+instruct storeL2I(memory mem, eRegL src) %{
+ match(Set mem (StoreI mem (ConvL2I src)));
+
+ format %{ "MOV $mem,$src.lo\t# long -> int" %}
+ ins_encode %{
+ __ movl($mem$$Address, $src$$Register);
+ %}
+ ins_pipe(ialu_mem_reg);
+%}
+
// Volatile Store Long. Must be atomic, so move it into
// the FP TOS and then do a 64-bit FIST. Has to probe the
// target address before the store (for null-ptr checks)
--- a/hotspot/src/cpu/x86/vm/x86_64.ad Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/cpu/x86/vm/x86_64.ad Wed Jul 05 16:56:36 2017 +0200
@@ -6444,6 +6444,21 @@
ins_pipe(ialu_reg_mem);
%}
+// Load Unsigned Byte (8 bit UNsigned) with a 8-bit mask into Long Register
+instruct loadUB2L_immI8(rRegL dst, memory mem, immI8 mask, rFlagsReg cr) %{
+ match(Set dst (ConvI2L (AndI (LoadUB mem) mask)));
+ effect(KILL cr);
+
+ format %{ "movzbq $dst, $mem\t# ubyte & 8-bit mask -> long\n\t"
+ "andl $dst, $mask" %}
+ ins_encode %{
+ Register Rdst = $dst$$Register;
+ __ movzbq(Rdst, $mem$$Address);
+ __ andl(Rdst, $mask$$constant);
+ %}
+ ins_pipe(ialu_reg_mem);
+%}
+
// Load Short (16 bit signed)
instruct loadS(rRegI dst, memory mem)
%{
@@ -6528,6 +6543,32 @@
ins_pipe(ialu_reg_mem);
%}
+// Load Unsigned Short/Char (16 bit UNsigned) with mask 0xFF into Long Register
+instruct loadUS2L_immI_255(rRegL dst, memory mem, immI_255 mask) %{
+ match(Set dst (ConvI2L (AndI (LoadUS mem) mask)));
+
+ format %{ "movzbq $dst, $mem\t# ushort/char & 0xFF -> long" %}
+ ins_encode %{
+ __ movzbq($dst$$Register, $mem$$Address);
+ %}
+ ins_pipe(ialu_reg_mem);
+%}
+
+// Load Unsigned Short/Char (16 bit UNsigned) with mask into Long Register
+instruct loadUS2L_immI16(rRegL dst, memory mem, immI16 mask, rFlagsReg cr) %{
+ match(Set dst (ConvI2L (AndI (LoadUS mem) mask)));
+ effect(KILL cr);
+
+ format %{ "movzwq $dst, $mem\t# ushort/char & 16-bit mask -> long\n\t"
+ "andl $dst, $mask" %}
+ ins_encode %{
+ Register Rdst = $dst$$Register;
+ __ movzwq(Rdst, $mem$$Address);
+ __ andl(Rdst, $mask$$constant);
+ %}
+ ins_pipe(ialu_reg_mem);
+%}
+
// Load Integer
instruct loadI(rRegI dst, memory mem)
%{
@@ -6606,6 +6647,43 @@
ins_pipe(ialu_reg_mem);
%}
+// Load Integer with mask 0xFF into Long Register
+instruct loadI2L_immI_255(rRegL dst, memory mem, immI_255 mask) %{
+ match(Set dst (ConvI2L (AndI (LoadI mem) mask)));
+
+ format %{ "movzbq $dst, $mem\t# int & 0xFF -> long" %}
+ ins_encode %{
+ __ movzbq($dst$$Register, $mem$$Address);
+ %}
+ ins_pipe(ialu_reg_mem);
+%}
+
+// Load Integer with mask 0xFFFF into Long Register
+instruct loadI2L_immI_65535(rRegL dst, memory mem, immI_65535 mask) %{
+ match(Set dst (ConvI2L (AndI (LoadI mem) mask)));
+
+ format %{ "movzwq $dst, $mem\t# int & 0xFFFF -> long" %}
+ ins_encode %{
+ __ movzwq($dst$$Register, $mem$$Address);
+ %}
+ ins_pipe(ialu_reg_mem);
+%}
+
+// Load Integer with a 32-bit mask into Long Register
+instruct loadI2L_immI(rRegL dst, memory mem, immI mask, rFlagsReg cr) %{
+ match(Set dst (ConvI2L (AndI (LoadI mem) mask)));
+ effect(KILL cr);
+
+ format %{ "movl $dst, $mem\t# int & 32-bit mask -> long\n\t"
+ "andl $dst, $mask" %}
+ ins_encode %{
+ Register Rdst = $dst$$Register;
+ __ movl(Rdst, $mem$$Address);
+ __ andl(Rdst, $mask$$constant);
+ %}
+ ins_pipe(ialu_reg_mem);
+%}
+
// Load Unsigned Integer into Long Register
instruct loadUI2L(rRegL dst, memory mem)
%{
@@ -11673,8 +11751,9 @@
ins_cost(125);
format %{ "movslq $dst, $src\t# i2l" %}
- opcode(0x63); // needs REX.W
- ins_encode(REX_reg_reg_wide(dst, src), OpcP, reg_reg(dst,src));
+ ins_encode %{
+ __ movslq($dst$$Register, $src$$Register);
+ %}
ins_pipe(ialu_reg_reg);
%}
--- a/hotspot/src/share/tools/MakeDeps/Database.java Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/tools/MakeDeps/Database.java Wed Jul 05 16:56:36 2017 +0200
@@ -1,5 +1,5 @@
/*
- * Copyright 1999-2005 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
@@ -39,7 +39,6 @@
private HashMap<String,String> platformDepFiles;
private long threshold;
private int nOuterFiles;
- private int nPrecompiledFiles;
private boolean missingOk;
private Platform plat;
/** These allow you to specify files not in the include database
@@ -62,7 +61,6 @@
threshold = t;
nOuterFiles = 0;
- nPrecompiledFiles = 0;
missingOk = false;
firstFile = null;
lastFile = null;
@@ -343,7 +341,6 @@
plat.getGIFileTemplate().getInvDir() +
list.getName() +
"\"");
- nPrecompiledFiles += 1;
}
}
inclFile.println();
@@ -408,22 +405,22 @@
gd.println();
}
- if (nPrecompiledFiles > 0) {
- // write Precompiled_Files = ...
- gd.println("Precompiled_Files = \\");
- for (Iterator iter = grandInclude.iterator(); iter.hasNext(); ) {
- FileList list = (FileList) iter.next();
+ // write Precompiled_Files = ...
+ gd.println("Precompiled_Files = \\");
+ for (Iterator iter = grandInclude.iterator(); iter.hasNext(); ) {
+ FileList list = (FileList) iter.next();
+ if (list.getCount() >= threshold) {
gd.println(list.getName() + " \\");
String platformDep = platformDepFiles.get(list.getName());
if (platformDep != null) {
- // make sure changes to the platform dependent file will
- // cause regeneration of the pch file.
- gd.println(platformDep + " \\");
+ // make sure changes to the platform dependent file will
+ // cause regeneration of the pch file.
+ gd.println(platformDep + " \\");
}
}
- gd.println();
- gd.println();
}
+ gd.println();
+ gd.println();
gd.println("DTraced_Files = \\");
for (Iterator iter = outerFiles.iterator(); iter.hasNext(); ) {
@@ -483,7 +480,6 @@
}
if (plat.includeGIDependencies()
- && nPrecompiledFiles > 0
&& anII.getUseGrandInclude()) {
gd.println(" $(Precompiled_Files) \\");
}
--- a/hotspot/src/share/vm/adlc/output_h.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/adlc/output_h.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -1367,11 +1367,11 @@
else if (!strcmp(oper->ideal_type(_globalNames), "ConN")) {
// Access the locally stored constant
fprintf(fp," virtual intptr_t constant() const {");
- fprintf(fp, " return _c0->make_oopptr()->get_con();");
+ fprintf(fp, " return _c0->get_ptrtype()->get_con();");
fprintf(fp, " }\n");
// Generate query to determine if this pointer is an oop
fprintf(fp," virtual bool constant_is_oop() const {");
- fprintf(fp, " return _c0->make_oopptr()->isa_oop_ptr();");
+ fprintf(fp, " return _c0->get_ptrtype()->isa_oop_ptr();");
fprintf(fp, " }\n");
}
else if (!strcmp(oper->ideal_type(_globalNames), "ConL")) {
--- a/hotspot/src/share/vm/c1/c1_LIRGenerator.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/c1/c1_LIRGenerator.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -1534,12 +1534,8 @@
}
if (is_oop) {
-#ifdef PRECISE_CARDMARK
- // Precise cardmarks don't work
- post_barrier(LIR_OprFact::address(address), value.result());
-#else
+ // Store to object so mark the card of the header
post_barrier(object.result(), value.result());
-#endif // PRECISE_CARDMARK
}
if (is_volatile && os::is_MP()) {
--- a/hotspot/src/share/vm/gc_implementation/g1/concurrentMark.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/g1/concurrentMark.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -1233,6 +1233,41 @@
CardTableModRefBS::card_shift);
}
+ // It takes a region that's not empty (i.e., it has at least one
+ // live object in it and sets its corresponding bit on the region
+ // bitmap to 1. If the region is "starts humongous" it will also set
+ // to 1 the bits on the region bitmap that correspond to its
+ // associated "continues humongous" regions.
+ void set_bit_for_region(HeapRegion* hr) {
+ assert(!hr->continuesHumongous(), "should have filtered those out");
+
+ size_t index = hr->hrs_index();
+ if (!hr->startsHumongous()) {
+ // Normal (non-humongous) case: just set the bit.
+ _region_bm->par_at_put((BitMap::idx_t) index, true);
+ } else {
+ // Starts humongous case: calculate how many regions are part of
+ // this humongous region and then set the bit range. It might
+ // have been a bit more efficient to look at the object that
+ // spans these humongous regions to calculate their number from
+ // the object's size. However, it's a good idea to calculate
+ // this based on the metadata itself, and not the region
+ // contents, so that this code is not aware of what goes into
+ // the humongous regions (in case this changes in the future).
+ G1CollectedHeap* g1h = G1CollectedHeap::heap();
+ size_t end_index = index + 1;
+ while (end_index < g1h->n_regions()) {
+ HeapRegion* chr = g1h->region_at(end_index);
+ if (!chr->continuesHumongous()) {
+ break;
+ }
+ end_index += 1;
+ }
+ _region_bm->par_at_put_range((BitMap::idx_t) index,
+ (BitMap::idx_t) end_index, true);
+ }
+ }
+
bool doHeapRegion(HeapRegion* hr) {
if (_co_tracker != NULL)
_co_tracker->update();
@@ -1241,13 +1276,13 @@
_start_vtime_sec = os::elapsedVTime();
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);
- }
+ // We will ignore these here and process them when their
+ // associated "starts humongous" region is processed (see
+ // set_bit_for_heap_region()). Note that we cannot rely on their
+ // associated "starts humongous" region to have their bit set to
+ // 1 since, due to the region chunking in the parallel region
+ // iteration, a "continues humongous" region might be visited
+ // before its associated "starts humongous".
return false;
}
@@ -1343,14 +1378,14 @@
intptr_t(uintptr_t(tp) >> CardTableModRefBS::card_shift);
mark_card_num_range(start_card_num, last_card_num);
// This definitely means the region has live objects.
- _region_bm->par_at_put(hr->hrs_index(), 1);
+ set_bit_for_region(hr);
}
}
hr->add_to_marked_bytes(marked_bytes);
// Update the live region bitmap.
if (marked_bytes > 0) {
- _region_bm->par_at_put(hr->hrs_index(), 1);
+ set_bit_for_region(hr);
}
hr->set_top_at_conc_mark_count(nextTop);
_tot_live += hr->next_live_bytes();
--- a/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -902,6 +902,10 @@
size_t word_size) {
ResourceMark rm;
+ if (PrintHeapAtGC) {
+ Universe::print_heap_before_gc();
+ }
+
if (full && DisableExplicitGC) {
gclog_or_tty->print("\n\n\nDisabling Explicit GC\n\n\n");
return;
@@ -927,7 +931,7 @@
g1_policy()->record_full_collection_start();
gc_prologue(true);
- increment_total_collections();
+ increment_total_collections(true /* full gc */);
size_t g1h_prev_used = used();
assert(used() == recalculate_used(), "Should be equal");
@@ -1066,6 +1070,10 @@
assert( check_young_list_empty(false, false),
"young list should be empty at this point");
}
+
+ if (PrintHeapAtGC) {
+ Universe::print_heap_after_gc();
+ }
}
void G1CollectedHeap::do_full_collection(bool clear_all_soft_refs) {
@@ -2325,9 +2333,37 @@
}
};
-void G1CollectedHeap::print() const { print_on(gclog_or_tty); }
+void G1CollectedHeap::print() const { print_on(tty); }
void G1CollectedHeap::print_on(outputStream* st) const {
+ print_on(st, PrintHeapAtGCExtended);
+}
+
+void G1CollectedHeap::print_on(outputStream* st, bool extended) const {
+ st->print(" %-20s", "garbage-first heap");
+ st->print(" total " SIZE_FORMAT "K, used " SIZE_FORMAT "K",
+ capacity()/K, used()/K);
+ st->print(" [" INTPTR_FORMAT ", " INTPTR_FORMAT ", " INTPTR_FORMAT ")",
+ _g1_storage.low_boundary(),
+ _g1_storage.high(),
+ _g1_storage.high_boundary());
+ st->cr();
+ st->print(" region size " SIZE_FORMAT "K, ",
+ HeapRegion::GrainBytes/K);
+ size_t young_regions = _young_list->length();
+ st->print(SIZE_FORMAT " young (" SIZE_FORMAT "K), ",
+ young_regions, young_regions * HeapRegion::GrainBytes / K);
+ size_t survivor_regions = g1_policy()->recorded_survivor_regions();
+ st->print(SIZE_FORMAT " survivors (" SIZE_FORMAT "K)",
+ survivor_regions, survivor_regions * HeapRegion::GrainBytes / K);
+ st->cr();
+ perm()->as_gen()->print_on(st);
+ if (extended) {
+ print_on_extended(st);
+ }
+}
+
+void G1CollectedHeap::print_on_extended(outputStream* st) const {
PrintRegionClosure blk(st);
_hrs->iterate(&blk);
}
@@ -2408,10 +2444,6 @@
}
void G1CollectedHeap::gc_prologue(bool full /* Ignored */) {
- if (PrintHeapAtGC){
- gclog_or_tty->print_cr(" {Heap before GC collections=%d:", total_collections());
- Universe::print();
- }
assert(InlineCacheBuffer::is_empty(), "should have cleaned up ICBuffer");
// Call allocation profiler
AllocationProfiler::iterate_since_last_gc();
@@ -2425,12 +2457,6 @@
// is set.
COMPILER2_PRESENT(assert(DerivedPointerTable::is_empty(),
"derived pointer present"));
-
- if (PrintHeapAtGC){
- gclog_or_tty->print_cr(" Heap after GC collections=%d:", total_collections());
- Universe::print();
- gclog_or_tty->print("} ");
- }
}
void G1CollectedHeap::do_collection_pause() {
@@ -2559,241 +2585,250 @@
void
G1CollectedHeap::do_collection_pause_at_safepoint() {
- char verbose_str[128];
- sprintf(verbose_str, "GC pause ");
- if (g1_policy()->in_young_gc_mode()) {
- if (g1_policy()->full_young_gcs())
- strcat(verbose_str, "(young)");
- else
- strcat(verbose_str, "(partial)");
- }
- if (g1_policy()->should_initiate_conc_mark())
- strcat(verbose_str, " (initial-mark)");
-
- GCCauseSetter x(this, GCCause::_g1_inc_collection_pause);
-
- // if PrintGCDetails is on, we'll print long statistics information
- // in the collector policy code, so let's not print this as the output
- // is messy if we do.
- gclog_or_tty->date_stamp(PrintGC && PrintGCDateStamps);
- TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
- TraceTime t(verbose_str, PrintGC && !PrintGCDetails, true, gclog_or_tty);
-
- ResourceMark rm;
- assert(SafepointSynchronize::is_at_safepoint(), "should be at safepoint");
- assert(Thread::current() == VMThread::vm_thread(), "should be in vm thread");
- guarantee(!is_gc_active(), "collection is not reentrant");
- assert(regions_accounted_for(), "Region leakage!");
-
- increment_gc_time_stamp();
-
- if (g1_policy()->in_young_gc_mode()) {
- assert(check_young_list_well_formed(),
- "young list should be well formed");
- }
-
- if (GC_locker::is_active()) {
- return; // GC is disabled (e.g. JNI GetXXXCritical operation)
- }
-
- bool abandoned = false;
- { // Call to jvmpi::post_class_unload_events must occur outside of active GC
- IsGCActiveMark x;
-
- gc_prologue(false);
- increment_total_collections();
+ if (PrintHeapAtGC) {
+ Universe::print_heap_before_gc();
+ }
+
+ {
+ char verbose_str[128];
+ sprintf(verbose_str, "GC pause ");
+ if (g1_policy()->in_young_gc_mode()) {
+ if (g1_policy()->full_young_gcs())
+ strcat(verbose_str, "(young)");
+ else
+ strcat(verbose_str, "(partial)");
+ }
+ if (g1_policy()->should_initiate_conc_mark())
+ strcat(verbose_str, " (initial-mark)");
+
+ GCCauseSetter x(this, GCCause::_g1_inc_collection_pause);
+
+ // if PrintGCDetails is on, we'll print long statistics information
+ // in the collector policy code, so let's not print this as the output
+ // is messy if we do.
+ gclog_or_tty->date_stamp(PrintGC && PrintGCDateStamps);
+ TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
+ TraceTime t(verbose_str, PrintGC && !PrintGCDetails, true, gclog_or_tty);
+
+ ResourceMark rm;
+ assert(SafepointSynchronize::is_at_safepoint(), "should be at safepoint");
+ assert(Thread::current() == VMThread::vm_thread(), "should be in vm thread");
+ guarantee(!is_gc_active(), "collection is not reentrant");
+ assert(regions_accounted_for(), "Region leakage!");
+
+ increment_gc_time_stamp();
+
+ if (g1_policy()->in_young_gc_mode()) {
+ assert(check_young_list_well_formed(),
+ "young list should be well formed");
+ }
+
+ if (GC_locker::is_active()) {
+ return; // GC is disabled (e.g. JNI GetXXXCritical operation)
+ }
+
+ bool abandoned = false;
+ { // Call to jvmpi::post_class_unload_events must occur outside of active GC
+ IsGCActiveMark x;
+
+ gc_prologue(false);
+ increment_total_collections(false /* full gc */);
#if G1_REM_SET_LOGGING
- gclog_or_tty->print_cr("\nJust chose CS, heap:");
- print();
+ gclog_or_tty->print_cr("\nJust chose CS, heap:");
+ print();
#endif
- if (VerifyBeforeGC && total_collections() >= VerifyGCStartAt) {
- HandleMark hm; // Discard invalid handles created during verification
- prepare_for_verify();
- gclog_or_tty->print(" VerifyBeforeGC:");
- Universe::verify(false);
- }
-
- COMPILER2_PRESENT(DerivedPointerTable::clear());
-
- // We want to turn off ref discovery, if necessary, and turn it back on
- // on again later if we do.
- bool was_enabled = ref_processor()->discovery_enabled();
- if (was_enabled) ref_processor()->disable_discovery();
-
- // Forget the current alloc region (we might even choose it to be part
- // of the collection set!).
- abandon_cur_alloc_region();
-
- // The elapsed time induced by the start time below deliberately elides
- // the possible verification above.
- double start_time_sec = os::elapsedTime();
- GCOverheadReporter::recordSTWStart(start_time_sec);
- size_t start_used_bytes = used();
- if (!G1ConcMark) {
- do_sync_mark();
- }
-
- g1_policy()->record_collection_pause_start(start_time_sec,
- start_used_bytes);
-
- guarantee(_in_cset_fast_test == NULL, "invariant");
- guarantee(_in_cset_fast_test_base == NULL, "invariant");
- _in_cset_fast_test_length = max_regions();
- _in_cset_fast_test_base =
+ if (VerifyBeforeGC && total_collections() >= VerifyGCStartAt) {
+ HandleMark hm; // Discard invalid handles created during verification
+ prepare_for_verify();
+ gclog_or_tty->print(" VerifyBeforeGC:");
+ Universe::verify(false);
+ }
+
+ COMPILER2_PRESENT(DerivedPointerTable::clear());
+
+ // We want to turn off ref discovery, if necessary, and turn it back on
+ // on again later if we do.
+ bool was_enabled = ref_processor()->discovery_enabled();
+ if (was_enabled) ref_processor()->disable_discovery();
+
+ // Forget the current alloc region (we might even choose it to be part
+ // of the collection set!).
+ abandon_cur_alloc_region();
+
+ // The elapsed time induced by the start time below deliberately elides
+ // the possible verification above.
+ double start_time_sec = os::elapsedTime();
+ GCOverheadReporter::recordSTWStart(start_time_sec);
+ size_t start_used_bytes = used();
+ if (!G1ConcMark) {
+ do_sync_mark();
+ }
+
+ g1_policy()->record_collection_pause_start(start_time_sec,
+ start_used_bytes);
+
+ guarantee(_in_cset_fast_test == NULL, "invariant");
+ guarantee(_in_cset_fast_test_base == NULL, "invariant");
+ _in_cset_fast_test_length = max_regions();
+ _in_cset_fast_test_base =
NEW_C_HEAP_ARRAY(bool, _in_cset_fast_test_length);
- memset(_in_cset_fast_test_base, false,
+ memset(_in_cset_fast_test_base, false,
_in_cset_fast_test_length * sizeof(bool));
- // We're biasing _in_cset_fast_test to avoid subtracting the
- // beginning of the heap every time we want to index; basically
- // it's the same with what we do with the card table.
- _in_cset_fast_test = _in_cset_fast_test_base -
+ // We're biasing _in_cset_fast_test to avoid subtracting the
+ // beginning of the heap every time we want to index; basically
+ // it's the same with what we do with the card table.
+ _in_cset_fast_test = _in_cset_fast_test_base -
((size_t) _g1_reserved.start() >> HeapRegion::LogOfHRGrainBytes);
#if SCAN_ONLY_VERBOSE
- _young_list->print();
+ _young_list->print();
#endif // SCAN_ONLY_VERBOSE
- if (g1_policy()->should_initiate_conc_mark()) {
- concurrent_mark()->checkpointRootsInitialPre();
- }
- save_marks();
-
- // We must do this before any possible evacuation that should propagate
- // marks.
- if (mark_in_progress()) {
- double start_time_sec = os::elapsedTime();
-
- _cm->drainAllSATBBuffers();
- double finish_mark_ms = (os::elapsedTime() - start_time_sec) * 1000.0;
- g1_policy()->record_satb_drain_time(finish_mark_ms);
-
- }
- // Record the number of elements currently on the mark stack, so we
- // only iterate over these. (Since evacuation may add to the mark
- // stack, doing more exposes race conditions.) If no mark is in
- // progress, this will be zero.
- _cm->set_oops_do_bound();
-
- assert(regions_accounted_for(), "Region leakage.");
-
- if (mark_in_progress())
- concurrent_mark()->newCSet();
-
- // Now choose the CS.
- g1_policy()->choose_collection_set();
-
- // We may abandon a pause if we find no region that will fit in the MMU
- // pause.
- bool abandoned = (g1_policy()->collection_set() == NULL);
-
- // Nothing to do if we were unable to choose a collection set.
- if (!abandoned) {
+ if (g1_policy()->should_initiate_conc_mark()) {
+ concurrent_mark()->checkpointRootsInitialPre();
+ }
+ save_marks();
+
+ // We must do this before any possible evacuation that should propagate
+ // marks.
+ if (mark_in_progress()) {
+ double start_time_sec = os::elapsedTime();
+
+ _cm->drainAllSATBBuffers();
+ double finish_mark_ms = (os::elapsedTime() - start_time_sec) * 1000.0;
+ g1_policy()->record_satb_drain_time(finish_mark_ms);
+ }
+ // Record the number of elements currently on the mark stack, so we
+ // only iterate over these. (Since evacuation may add to the mark
+ // stack, doing more exposes race conditions.) If no mark is in
+ // progress, this will be zero.
+ _cm->set_oops_do_bound();
+
+ assert(regions_accounted_for(), "Region leakage.");
+
+ if (mark_in_progress())
+ concurrent_mark()->newCSet();
+
+ // Now choose the CS.
+ g1_policy()->choose_collection_set();
+
+ // We may abandon a pause if we find no region that will fit in the MMU
+ // pause.
+ bool abandoned = (g1_policy()->collection_set() == NULL);
+
+ // Nothing to do if we were unable to choose a collection set.
+ if (!abandoned) {
#if G1_REM_SET_LOGGING
- gclog_or_tty->print_cr("\nAfter pause, heap:");
- print();
+ gclog_or_tty->print_cr("\nAfter pause, heap:");
+ print();
#endif
- setup_surviving_young_words();
-
- // Set up the gc allocation regions.
- get_gc_alloc_regions();
-
- // Actually do the work...
- evacuate_collection_set();
- free_collection_set(g1_policy()->collection_set());
- g1_policy()->clear_collection_set();
-
- FREE_C_HEAP_ARRAY(bool, _in_cset_fast_test_base);
- // this is more for peace of mind; we're nulling them here and
- // we're expecting them to be null at the beginning of the next GC
- _in_cset_fast_test = NULL;
- _in_cset_fast_test_base = NULL;
-
- release_gc_alloc_regions(false /* totally */);
-
- cleanup_surviving_young_words();
-
- if (g1_policy()->in_young_gc_mode()) {
- _young_list->reset_sampled_info();
- assert(check_young_list_empty(true),
- "young list should be empty");
+ setup_surviving_young_words();
+
+ // Set up the gc allocation regions.
+ get_gc_alloc_regions();
+
+ // Actually do the work...
+ evacuate_collection_set();
+ free_collection_set(g1_policy()->collection_set());
+ g1_policy()->clear_collection_set();
+
+ FREE_C_HEAP_ARRAY(bool, _in_cset_fast_test_base);
+ // this is more for peace of mind; we're nulling them here and
+ // we're expecting them to be null at the beginning of the next GC
+ _in_cset_fast_test = NULL;
+ _in_cset_fast_test_base = NULL;
+
+ release_gc_alloc_regions(false /* totally */);
+
+ cleanup_surviving_young_words();
+
+ if (g1_policy()->in_young_gc_mode()) {
+ _young_list->reset_sampled_info();
+ assert(check_young_list_empty(true),
+ "young list should be empty");
#if SCAN_ONLY_VERBOSE
- _young_list->print();
+ _young_list->print();
#endif // SCAN_ONLY_VERBOSE
- g1_policy()->record_survivor_regions(_young_list->survivor_length(),
- _young_list->first_survivor_region(),
- _young_list->last_survivor_region());
- _young_list->reset_auxilary_lists();
+ g1_policy()->record_survivor_regions(_young_list->survivor_length(),
+ _young_list->first_survivor_region(),
+ _young_list->last_survivor_region());
+ _young_list->reset_auxilary_lists();
+ }
+ } else {
+ COMPILER2_PRESENT(DerivedPointerTable::update_pointers());
}
- } else {
- COMPILER2_PRESENT(DerivedPointerTable::update_pointers());
- }
-
- if (evacuation_failed()) {
- _summary_bytes_used = recalculate_used();
- } else {
- // The "used" of the the collection set have already been subtracted
- // when they were freed. Add in the bytes evacuated.
- _summary_bytes_used += g1_policy()->bytes_in_to_space();
- }
-
- if (g1_policy()->in_young_gc_mode() &&
- g1_policy()->should_initiate_conc_mark()) {
- concurrent_mark()->checkpointRootsInitialPost();
- set_marking_started();
- doConcurrentMark();
- }
+
+ if (evacuation_failed()) {
+ _summary_bytes_used = recalculate_used();
+ } else {
+ // The "used" of the the collection set have already been subtracted
+ // when they were freed. Add in the bytes evacuated.
+ _summary_bytes_used += g1_policy()->bytes_in_to_space();
+ }
+
+ if (g1_policy()->in_young_gc_mode() &&
+ g1_policy()->should_initiate_conc_mark()) {
+ concurrent_mark()->checkpointRootsInitialPost();
+ set_marking_started();
+ doConcurrentMark();
+ }
#if SCAN_ONLY_VERBOSE
- _young_list->print();
+ _young_list->print();
#endif // SCAN_ONLY_VERBOSE
- double end_time_sec = os::elapsedTime();
- double pause_time_ms = (end_time_sec - start_time_sec) * MILLIUNITS;
- g1_policy()->record_pause_time_ms(pause_time_ms);
- GCOverheadReporter::recordSTWEnd(end_time_sec);
- g1_policy()->record_collection_pause_end(abandoned);
-
- assert(regions_accounted_for(), "Region leakage.");
-
- if (VerifyAfterGC && total_collections() >= VerifyGCStartAt) {
- HandleMark hm; // Discard invalid handles created during verification
- gclog_or_tty->print(" VerifyAfterGC:");
- prepare_for_verify();
- Universe::verify(false);
- }
-
- if (was_enabled) ref_processor()->enable_discovery();
-
- {
- size_t expand_bytes = g1_policy()->expansion_amount();
- if (expand_bytes > 0) {
- size_t bytes_before = capacity();
- expand(expand_bytes);
+ double end_time_sec = os::elapsedTime();
+ double pause_time_ms = (end_time_sec - start_time_sec) * MILLIUNITS;
+ g1_policy()->record_pause_time_ms(pause_time_ms);
+ GCOverheadReporter::recordSTWEnd(end_time_sec);
+ g1_policy()->record_collection_pause_end(abandoned);
+
+ assert(regions_accounted_for(), "Region leakage.");
+
+ if (VerifyAfterGC && total_collections() >= VerifyGCStartAt) {
+ HandleMark hm; // Discard invalid handles created during verification
+ gclog_or_tty->print(" VerifyAfterGC:");
+ prepare_for_verify();
+ Universe::verify(false);
}
- }
-
- if (mark_in_progress()) {
- concurrent_mark()->update_g1_committed();
- }
+
+ if (was_enabled) ref_processor()->enable_discovery();
+
+ {
+ size_t expand_bytes = g1_policy()->expansion_amount();
+ if (expand_bytes > 0) {
+ size_t bytes_before = capacity();
+ expand(expand_bytes);
+ }
+ }
+
+ if (mark_in_progress()) {
+ concurrent_mark()->update_g1_committed();
+ }
#ifdef TRACESPINNING
- ParallelTaskTerminator::print_termination_counts();
+ ParallelTaskTerminator::print_termination_counts();
#endif
- gc_epilogue(false);
- }
-
- assert(verify_region_lists(), "Bad region lists.");
-
- if (ExitAfterGCNum > 0 && total_collections() == ExitAfterGCNum) {
- gclog_or_tty->print_cr("Stopping after GC #%d", ExitAfterGCNum);
- print_tracing_info();
- vm_exit(-1);
+ gc_epilogue(false);
+ }
+
+ assert(verify_region_lists(), "Bad region lists.");
+
+ if (ExitAfterGCNum > 0 && total_collections() == ExitAfterGCNum) {
+ gclog_or_tty->print_cr("Stopping after GC #%d", ExitAfterGCNum);
+ print_tracing_info();
+ vm_exit(-1);
+ }
+ }
+
+ if (PrintHeapAtGC) {
+ Universe::print_heap_after_gc();
}
}
@@ -5357,7 +5392,7 @@
assert(_free_region_list == NULL, "Postcondition of loop.");
if (_free_region_list_size != 0) {
gclog_or_tty->print_cr("Size is %d.", _free_region_list_size);
- print();
+ print_on(gclog_or_tty, true /* extended */);
}
assert(_free_region_list_size == 0, "Postconditions of loop.");
}
--- a/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp Wed Jul 05 16:56:36 2017 +0200
@@ -1061,8 +1061,14 @@
// Override; it uses the "prev" marking information
virtual void verify(bool allow_dirty, bool silent);
+ // Default behavior by calling print(tty);
virtual void print() const;
+ // This calls print_on(st, PrintHeapAtGCExtended).
virtual void print_on(outputStream* st) const;
+ // If extended is true, it will print out information for all
+ // regions in the heap by calling print_on_extended(st).
+ virtual void print_on(outputStream* st, bool extended) const;
+ virtual void print_on_extended(outputStream* st) const;
virtual void print_gc_threads_on(outputStream* st) const;
virtual void gc_threads_do(ThreadClosure* tc) const;
--- a/hotspot/src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp Wed Jul 05 16:56:36 2017 +0200
@@ -1097,6 +1097,10 @@
_recorded_survivor_tail = tail;
}
+ size_t recorded_survivor_regions() {
+ return _recorded_survivor_regions;
+ }
+
void record_thread_age_table(ageTable* age_table)
{
_survivors_age_table.merge_par(age_table);
--- a/hotspot/src/share/vm/gc_implementation/g1/heapRegion.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/g1/heapRegion.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -703,7 +703,7 @@
}
if (vl_cl.failures()) {
gclog_or_tty->print_cr("Heap:");
- G1CollectedHeap::heap()->print();
+ G1CollectedHeap::heap()->print_on(gclog_or_tty, true /* extended */);
gclog_or_tty->print_cr("");
}
if (VerifyDuringGC &&
--- a/hotspot/src/share/vm/opto/block.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/opto/block.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -357,6 +357,9 @@
#ifndef PRODUCT
, _trace_opto_pipelining(TraceOptoPipelining || C->method_has_option("TraceOptoPipelining"))
#endif
+#ifdef ASSERT
+ , _raw_oops(a)
+#endif
{
ResourceMark rm;
// I'll need a few machine-specific GotoNodes. Make an Ideal GotoNode,
--- a/hotspot/src/share/vm/opto/block.hpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/opto/block.hpp Wed Jul 05 16:56:36 2017 +0200
@@ -380,6 +380,10 @@
bool _trace_opto_pipelining; // tracing flag
#endif
+#ifdef ASSERT
+ Unique_Node_List _raw_oops;
+#endif
+
// Build dominators
void Dominators();
--- a/hotspot/src/share/vm/opto/buildOopMap.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/opto/buildOopMap.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -74,9 +74,11 @@
// this block.
Block *_b; // Block for this struct
OopFlow *_next; // Next free OopFlow
+ // or NULL if dead/conflict
+ Compile* C;
- OopFlow( short *callees, Node **defs ) : _callees(callees), _defs(defs),
- _b(NULL), _next(NULL) { }
+ OopFlow( short *callees, Node **defs, Compile* c ) : _callees(callees), _defs(defs),
+ _b(NULL), _next(NULL), C(c) { }
// Given reaching-defs for this block start, compute it for this block end
void compute_reach( PhaseRegAlloc *regalloc, int max_reg, Dict *safehash );
@@ -88,7 +90,7 @@
void clone( OopFlow *flow, int max_size);
// Make a new OopFlow from scratch
- static OopFlow *make( Arena *A, int max_size );
+ static OopFlow *make( Arena *A, int max_size, Compile* C );
// Build an oopmap from the current flow info
OopMap *build_oop_map( Node *n, int max_reg, PhaseRegAlloc *regalloc, int* live );
@@ -180,11 +182,11 @@
}
//------------------------------make-------------------------------------------
-OopFlow *OopFlow::make( Arena *A, int max_size ) {
+OopFlow *OopFlow::make( Arena *A, int max_size, Compile* C ) {
short *callees = NEW_ARENA_ARRAY(A,short,max_size+1);
Node **defs = NEW_ARENA_ARRAY(A,Node*,max_size+1);
debug_only( memset(defs,0,(max_size+1)*sizeof(Node*)) );
- OopFlow *flow = new (A) OopFlow(callees+1, defs+1);
+ OopFlow *flow = new (A) OopFlow(callees+1, defs+1, C);
assert( &flow->_callees[OptoReg::Bad] == callees, "Ok to index at OptoReg::Bad" );
assert( &flow->_defs [OptoReg::Bad] == defs , "Ok to index at OptoReg::Bad" );
return flow;
@@ -288,7 +290,7 @@
m = m->in(idx);
}
}
- guarantee( 0, "must find derived/base pair" );
+ guarantee( 0, "must find derived/base pair" );
}
found: ;
Node *base = n->in(i+1); // Base is other half of pair
@@ -347,6 +349,13 @@
} else {
// Other - some reaching non-oop value
omap->set_value( r);
+#ifdef ASSERT
+ if( t->isa_rawptr() && C->cfg()->_raw_oops.member(def) ) {
+ def->dump();
+ n->dump();
+ assert(false, "there should be a oop in OopMap instead of a live raw oop at safepoint");
+ }
+#endif
}
}
@@ -562,7 +571,7 @@
// Do the first block 'by hand' to prime the worklist
Block *entry = _cfg->_blocks[1];
- OopFlow *rootflow = OopFlow::make(A,max_reg);
+ OopFlow *rootflow = OopFlow::make(A,max_reg,this);
// Initialize to 'bottom' (not 'top')
memset( rootflow->_callees, OptoReg::Bad, max_reg*sizeof(short) );
memset( rootflow->_defs , 0, max_reg*sizeof(Node*) );
@@ -628,7 +637,7 @@
// Carry it forward.
} else { // Draw a new OopFlow from the freelist
if( !free_list )
- free_list = OopFlow::make(A,max_reg);
+ free_list = OopFlow::make(A,max_reg,C);
flow = free_list;
assert( flow->_b == NULL, "oopFlow is not free" );
free_list = flow->_next;
--- a/hotspot/src/share/vm/opto/c2compiler.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/opto/c2compiler.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -104,7 +104,9 @@
initialize();
}
bool subsume_loads = true;
- bool do_escape_analysis = DoEscapeAnalysis;
+ bool do_escape_analysis = DoEscapeAnalysis &&
+ !(env->jvmti_can_hotswap_or_post_breakpoint() ||
+ env->jvmti_can_examine_or_deopt_anywhere());
while (!env->failing()) {
// Attempt to compile while subsuming loads into machine instructions.
Compile C(env, this, target, entry_bci, subsume_loads, do_escape_analysis);
--- a/hotspot/src/share/vm/opto/gcm.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/opto/gcm.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -1130,6 +1130,9 @@
Node *def = self->in(1);
if (def != NULL && def->bottom_type()->base() == Type::RawPtr) {
early->add_inst(self);
+#ifdef ASSERT
+ _raw_oops.push(def);
+#endif
continue;
}
break;
--- a/hotspot/src/share/vm/opto/graphKit.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/opto/graphKit.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -1378,7 +1378,7 @@
Node* adr,
uint adr_idx,
Node *val,
- const Type* val_type,
+ const TypeOopPtr* val_type,
BasicType bt) {
BarrierSet* bs = Universe::heap()->barrier_set();
set_control(ctl);
@@ -1436,7 +1436,7 @@
Node* adr,
const TypePtr* adr_type,
Node *val,
- const Type* val_type,
+ const TypeOopPtr* val_type,
BasicType bt) {
uint adr_idx = C->get_alias_index(adr_type);
Node* store;
@@ -1451,7 +1451,7 @@
Node* adr,
const TypePtr* adr_type,
Node *val,
- const Type* val_type,
+ const TypeOopPtr* val_type,
BasicType bt) {
uint adr_idx = C->get_alias_index(adr_type);
Node* store;
@@ -1466,12 +1466,29 @@
Node* adr,
const TypePtr* adr_type,
Node *val,
- const Type* val_type,
BasicType bt) {
- uint adr_idx = C->get_alias_index(adr_type);
- Node* store;
+ Compile::AliasType* at = C->alias_type(adr_type);
+ const TypeOopPtr* val_type = NULL;
+ if (adr_type->isa_instptr()) {
+ if (at->field() != NULL) {
+ // known field. This code is a copy of the do_put_xxx logic.
+ ciField* field = at->field();
+ if (!field->type()->is_loaded()) {
+ val_type = TypeInstPtr::BOTTOM;
+ } else {
+ val_type = TypeOopPtr::make_from_klass(field->type()->as_klass());
+ }
+ }
+ } else if (adr_type->isa_aryptr()) {
+ val_type = adr_type->is_aryptr()->elem()->make_oopptr();
+ }
+ if (val_type == NULL) {
+ val_type = TypeInstPtr::BOTTOM;
+ }
+
+ uint adr_idx = at->index();
pre_barrier(ctl, obj, adr, adr_idx, val, val_type, bt);
- store = store_to_memory(control(), adr, val, bt, adr_idx);
+ Node* store = store_to_memory(control(), adr, val, bt, adr_idx);
post_barrier(control(), store, obj, adr, adr_idx, val, bt, true);
return store;
}
@@ -3202,7 +3219,7 @@
Node* adr,
uint alias_idx,
Node* val,
- const Type* val_type,
+ const TypeOopPtr* val_type,
BasicType bt) {
IdealKit ideal(gvn(), control(), merged_memory(), true);
#define __ ideal.
--- a/hotspot/src/share/vm/opto/graphKit.hpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/opto/graphKit.hpp Wed Jul 05 16:56:36 2017 +0200
@@ -454,7 +454,7 @@
Node* adr, // actual adress to store val at
const TypePtr* adr_type,
Node* val,
- const Type* val_type,
+ const TypeOopPtr* val_type,
BasicType bt);
Node* store_oop_to_array(Node* ctl,
@@ -462,7 +462,7 @@
Node* adr, // actual adress to store val at
const TypePtr* adr_type,
Node* val,
- const Type* val_type,
+ const TypeOopPtr* val_type,
BasicType bt);
// Could be an array or object we don't know at compile time (unsafe ref.)
@@ -471,12 +471,11 @@
Node* adr, // actual adress to store val at
const TypePtr* adr_type,
Node* val,
- const Type* val_type,
BasicType bt);
// For the few case where the barriers need special help
void pre_barrier(Node* ctl, Node* obj, Node* adr, uint adr_idx,
- Node* val, const Type* val_type, BasicType bt);
+ Node* val, const TypeOopPtr* val_type, BasicType bt);
void post_barrier(Node* ctl, Node* store, Node* obj, Node* adr, uint adr_idx,
Node* val, BasicType bt, bool use_precise);
@@ -599,7 +598,7 @@
Node* adr,
uint alias_idx,
Node* val,
- const Type* val_type,
+ const TypeOopPtr* val_type,
BasicType bt);
void g1_write_barrier_post(Node* store,
--- a/hotspot/src/share/vm/opto/library_call.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/opto/library_call.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -165,6 +165,7 @@
bool inline_native_getLength();
bool inline_array_copyOf(bool is_copyOfRange);
bool inline_array_equals();
+ void copy_to_clone(Node* obj, Node* alloc_obj, Node* obj_size, bool is_array, bool card_mark);
bool inline_native_clone(bool is_virtual);
bool inline_native_Reflection_getCallerClass();
bool inline_native_AtomicLong_get();
@@ -181,7 +182,6 @@
Node* src, Node* src_offset,
Node* dest, Node* dest_offset,
Node* copy_length,
- int nargs, // arguments on stack for debug info
bool disjoint_bases = false,
bool length_never_negative = false,
RegionNode* slow_region = NULL);
@@ -202,17 +202,16 @@
void generate_slow_arraycopy(const TypePtr* adr_type,
Node* src, Node* src_offset,
Node* dest, Node* dest_offset,
- Node* copy_length,
- int nargs);
+ Node* copy_length);
Node* generate_checkcast_arraycopy(const TypePtr* adr_type,
Node* dest_elem_klass,
Node* src, Node* src_offset,
Node* dest, Node* dest_offset,
- Node* copy_length, int nargs);
+ Node* copy_length);
Node* generate_generic_arraycopy(const TypePtr* adr_type,
Node* src, Node* src_offset,
Node* dest, Node* dest_offset,
- Node* copy_length, int nargs);
+ Node* copy_length);
void generate_unchecked_arraycopy(const TypePtr* adr_type,
BasicType basic_elem_type,
bool disjoint_bases,
@@ -2178,9 +2177,8 @@
// Possibly an oop being stored to Java heap or native memory
if (!TypePtr::NULL_PTR->higher_equal(_gvn.type(heap_base_oop))) {
// oop to Java heap.
- (void) store_oop_to_unknown(control(), heap_base_oop, adr, adr_type, val, val->bottom_type(), type);
+ (void) store_oop_to_unknown(control(), heap_base_oop, adr, adr_type, val, type);
} else {
-
// We can't tell at compile time if we are storing in the Java heap or outside
// of it. So we need to emit code to conditionally do the proper type of
// store.
@@ -2189,7 +2187,7 @@
kit.declares_done();
// QQQ who knows what probability is here??
kit.if_then(heap_base_oop, BoolTest::ne, null(), PROB_UNLIKELY(0.999)); {
- (void) store_oop_to_unknown(control(), heap_base_oop, adr, adr_type, val, val->bottom_type(), type);
+ (void) store_oop_to_unknown(control(), heap_base_oop, adr, adr_type, val, type);
} kit.else_(); {
(void) store_to_memory(control(), adr, val, type, adr_type, is_volatile);
} kit.end_if();
@@ -2394,7 +2392,7 @@
case T_OBJECT:
// reference stores need a store barrier.
// (They don't if CAS fails, but it isn't worth checking.)
- pre_barrier(control(), base, adr, alias_idx, newval, value_type, T_OBJECT);
+ pre_barrier(control(), base, adr, alias_idx, newval, value_type->make_oopptr(), T_OBJECT);
#ifdef _LP64
if (adr->bottom_type()->is_ptr_to_narrowoop()) {
Node *newval_enc = _gvn.transform(new (C, 2) EncodePNode(newval, newval->bottom_type()->make_narrowoop()));
@@ -2489,7 +2487,7 @@
bool require_atomic_access = true;
Node* store;
if (type == T_OBJECT) // reference stores need a store barrier.
- store = store_oop_to_unknown(control(), base, adr, adr_type, val, value_type, type);
+ store = store_oop_to_unknown(control(), base, adr, adr_type, val, type);
else {
store = store_to_memory(control(), adr, val, type, adr_type, require_atomic_access);
}
@@ -3230,7 +3228,8 @@
Node* orig_tail = _gvn.transform( new(C, 3) SubINode(orig_length, start) );
Node* moved = generate_min_max(vmIntrinsics::_min, orig_tail, length);
- Node* newcopy = new_array(klass_node, length, nargs);
+ const bool raw_mem_only = true;
+ Node* newcopy = new_array(klass_node, length, nargs, raw_mem_only);
// Generate a direct call to the right arraycopy function(s).
// We know the copy is disjoint but we might not know if the
@@ -3241,7 +3240,7 @@
bool length_never_negative = true;
generate_arraycopy(TypeAryPtr::OOPS, T_OBJECT,
original, start, newcopy, intcon(0), moved,
- nargs, disjoint_bases, length_never_negative);
+ disjoint_bases, length_never_negative);
push(newcopy);
}
@@ -3883,6 +3882,98 @@
return true;
}
+//------------------------clone_coping-----------------------------------
+// Helper function for inline_native_clone.
+void LibraryCallKit::copy_to_clone(Node* obj, Node* alloc_obj, Node* obj_size, bool is_array, bool card_mark) {
+ assert(obj_size != NULL, "");
+ Node* raw_obj = alloc_obj->in(1);
+ assert(alloc_obj->is_CheckCastPP() && raw_obj->is_Proj() && raw_obj->in(0)->is_Allocate(), "");
+
+ if (ReduceBulkZeroing) {
+ // We will be completely responsible for initializing this object -
+ // mark Initialize node as complete.
+ AllocateNode* alloc = AllocateNode::Ideal_allocation(alloc_obj, &_gvn);
+ // The object was just allocated - there should be no any stores!
+ guarantee(alloc != NULL && alloc->maybe_set_complete(&_gvn), "");
+ }
+
+ // Cast to Object for arraycopy.
+ // We can't use the original CheckCastPP since it should be moved
+ // after the arraycopy to prevent stores flowing above it.
+ Node* new_obj = new(C, 2) CheckCastPPNode(alloc_obj->in(0), raw_obj,
+ TypeInstPtr::NOTNULL);
+ new_obj = _gvn.transform(new_obj);
+ // Substitute in the locally valid dest_oop.
+ replace_in_map(alloc_obj, new_obj);
+
+ // Copy the fastest available way.
+ // TODO: generate fields copies for small objects instead.
+ Node* src = obj;
+ Node* dest = new_obj;
+ Node* size = _gvn.transform(obj_size);
+
+ // Exclude the header but include array length to copy by 8 bytes words.
+ // Can't use base_offset_in_bytes(bt) since basic type is unknown.
+ int base_off = is_array ? arrayOopDesc::length_offset_in_bytes() :
+ instanceOopDesc::base_offset_in_bytes();
+ // base_off:
+ // 8 - 32-bit VM
+ // 12 - 64-bit VM, compressed oops
+ // 16 - 64-bit VM, normal oops
+ if (base_off % BytesPerLong != 0) {
+ assert(UseCompressedOops, "");
+ if (is_array) {
+ // Exclude length to copy by 8 bytes words.
+ base_off += sizeof(int);
+ } else {
+ // Include klass to copy by 8 bytes words.
+ base_off = instanceOopDesc::klass_offset_in_bytes();
+ }
+ assert(base_off % BytesPerLong == 0, "expect 8 bytes alignment");
+ }
+ src = basic_plus_adr(src, base_off);
+ dest = basic_plus_adr(dest, base_off);
+
+ // Compute the length also, if needed:
+ Node* countx = size;
+ countx = _gvn.transform( new (C, 3) SubXNode(countx, MakeConX(base_off)) );
+ countx = _gvn.transform( new (C, 3) URShiftXNode(countx, intcon(LogBytesPerLong) ));
+
+ const TypePtr* raw_adr_type = TypeRawPtr::BOTTOM;
+ bool disjoint_bases = true;
+ generate_unchecked_arraycopy(raw_adr_type, T_LONG, disjoint_bases,
+ src, NULL, dest, NULL, countx);
+
+ // If necessary, emit some card marks afterwards. (Non-arrays only.)
+ if (card_mark) {
+ assert(!is_array, "");
+ // Put in store barrier for any and all oops we are sticking
+ // into this object. (We could avoid this if we could prove
+ // that the object type contains no oop fields at all.)
+ Node* no_particular_value = NULL;
+ Node* no_particular_field = NULL;
+ int raw_adr_idx = Compile::AliasIdxRaw;
+ post_barrier(control(),
+ memory(raw_adr_type),
+ new_obj,
+ no_particular_field,
+ raw_adr_idx,
+ no_particular_value,
+ T_OBJECT,
+ false);
+ }
+
+ // Move the original CheckCastPP after arraycopy.
+ _gvn.hash_delete(alloc_obj);
+ alloc_obj->set_req(0, control());
+ // Replace raw memory edge with new CheckCastPP to have a live oop
+ // at safepoints instead of raw value.
+ assert(new_obj->is_CheckCastPP() && new_obj->in(1) == alloc_obj->in(1), "sanity");
+ alloc_obj->set_req(1, new_obj); // cast to the original type
+ _gvn.hash_find_insert(alloc_obj); // put back into GVN table
+ // Restore in the locally valid dest_oop.
+ replace_in_map(new_obj, alloc_obj);
+}
//------------------------inline_native_clone----------------------------
// Here are the simple edge cases:
@@ -3917,8 +4008,9 @@
// paths into result_reg:
enum {
_slow_path = 1, // out-of-line call to clone method (virtual or not)
- _objArray_path, // plain allocation, plus arrayof_oop_arraycopy
- _fast_path, // plain allocation, plus a CopyArray operation
+ _objArray_path, // plain array allocation, plus arrayof_oop_arraycopy
+ _array_path, // plain array allocation, plus arrayof_long_arraycopy
+ _instance_path, // plain instance allocation, plus arrayof_long_arraycopy
PATH_LIMIT
};
RegionNode* result_reg = new(C, PATH_LIMIT) RegionNode(PATH_LIMIT);
@@ -3933,18 +4025,6 @@
int raw_adr_idx = Compile::AliasIdxRaw;
const bool raw_mem_only = true;
- // paths into alloc_reg (on the fast path, just before the CopyArray):
- enum { _typeArray_alloc = 1, _instance_alloc, ALLOC_LIMIT };
- RegionNode* alloc_reg = new(C, ALLOC_LIMIT) RegionNode(ALLOC_LIMIT);
- PhiNode* alloc_val = new(C, ALLOC_LIMIT) PhiNode(alloc_reg, raw_adr_type);
- PhiNode* alloc_siz = new(C, ALLOC_LIMIT) PhiNode(alloc_reg, TypeX_X);
- PhiNode* alloc_i_o = new(C, ALLOC_LIMIT) PhiNode(alloc_reg, Type::ABIO);
- PhiNode* alloc_mem = new(C, ALLOC_LIMIT) PhiNode(alloc_reg, Type::MEMORY,
- raw_adr_type);
- record_for_igvn(alloc_reg);
-
- bool card_mark = false; // (see below)
-
Node* array_ctl = generate_array_guard(obj_klass, (RegionNode*)NULL);
if (array_ctl != NULL) {
// It's an array.
@@ -3954,16 +4034,6 @@
Node* obj_size = NULL;
Node* alloc_obj = new_array(obj_klass, obj_length, nargs,
raw_mem_only, &obj_size);
- assert(obj_size != NULL, "");
- Node* raw_obj = alloc_obj->in(1);
- assert(raw_obj->is_Proj() && raw_obj->in(0)->is_Allocate(), "");
- if (ReduceBulkZeroing) {
- AllocateNode* alloc = AllocateNode::Ideal_allocation(alloc_obj, &_gvn);
- if (alloc != NULL) {
- // We will be completely responsible for initializing this object.
- alloc->maybe_set_complete(&_gvn);
- }
- }
if (!use_ReduceInitialCardMarks()) {
// If it is an oop array, it requires very special treatment,
@@ -3977,7 +4047,7 @@
bool length_never_negative = true;
generate_arraycopy(TypeAryPtr::OOPS, T_OBJECT,
obj, intcon(0), alloc_obj, intcon(0),
- obj_length, nargs,
+ obj_length,
disjoint_bases, length_never_negative);
result_reg->init_req(_objArray_path, control());
result_val->init_req(_objArray_path, alloc_obj);
@@ -3992,19 +4062,24 @@
// the object.
// Otherwise, there are no card marks to worry about.
- alloc_val->init_req(_typeArray_alloc, raw_obj);
- alloc_siz->init_req(_typeArray_alloc, obj_size);
- alloc_reg->init_req(_typeArray_alloc, control());
- alloc_i_o->init_req(_typeArray_alloc, i_o());
- alloc_mem->init_req(_typeArray_alloc, memory(raw_adr_type));
+
+ if (!stopped()) {
+ copy_to_clone(obj, alloc_obj, obj_size, true, false);
+
+ // Present the results of the copy.
+ result_reg->init_req(_array_path, control());
+ result_val->init_req(_array_path, alloc_obj);
+ result_i_o ->set_req(_array_path, i_o());
+ result_mem ->set_req(_array_path, reset_memory());
+ }
}
- // We only go to the fast case code if we pass a number of guards.
+ // We only go to the instance fast case code if we pass a number of guards.
// The paths which do not pass are accumulated in the slow_region.
RegionNode* slow_region = new (C, 1) RegionNode(1);
record_for_igvn(slow_region);
if (!stopped()) {
- // It's an instance. Make the slow-path tests.
+ // It's an instance (we did array above). Make the slow-path tests.
// If this is a virtual call, we generate a funny guard. We grab
// the vtable entry corresponding to clone() from the target object.
// If the target method which we are calling happens to be the
@@ -4031,25 +4106,14 @@
PreserveJVMState pjvms(this);
Node* obj_size = NULL;
Node* alloc_obj = new_instance(obj_klass, NULL, raw_mem_only, &obj_size);
- assert(obj_size != NULL, "");
- Node* raw_obj = alloc_obj->in(1);
- assert(raw_obj->is_Proj() && raw_obj->in(0)->is_Allocate(), "");
- if (ReduceBulkZeroing) {
- AllocateNode* alloc = AllocateNode::Ideal_allocation(alloc_obj, &_gvn);
- if (alloc != NULL && !alloc->maybe_set_complete(&_gvn))
- alloc = NULL;
- }
- if (!use_ReduceInitialCardMarks()) {
- // Put in store barrier for any and all oops we are sticking
- // into this object. (We could avoid this if we could prove
- // that the object type contains no oop fields at all.)
- card_mark = true;
- }
- alloc_val->init_req(_instance_alloc, raw_obj);
- alloc_siz->init_req(_instance_alloc, obj_size);
- alloc_reg->init_req(_instance_alloc, control());
- alloc_i_o->init_req(_instance_alloc, i_o());
- alloc_mem->init_req(_instance_alloc, memory(raw_adr_type));
+
+ copy_to_clone(obj, alloc_obj, obj_size, false, !use_ReduceInitialCardMarks());
+
+ // Present the results of the slow call.
+ result_reg->init_req(_instance_path, control());
+ result_val->init_req(_instance_path, alloc_obj);
+ result_i_o ->set_req(_instance_path, i_o());
+ result_mem ->set_req(_instance_path, reset_memory());
}
// Generate code for the slow case. We make a call to clone().
@@ -4065,82 +4129,12 @@
result_mem ->set_req(_slow_path, reset_memory());
}
- // The object is allocated, as an array and/or an instance. Now copy it.
- set_control( _gvn.transform(alloc_reg) );
- set_i_o( _gvn.transform(alloc_i_o) );
- set_memory( _gvn.transform(alloc_mem), raw_adr_type );
- Node* raw_obj = _gvn.transform(alloc_val);
-
- if (!stopped()) {
- // Copy the fastest available way.
- // (No need for PreserveJVMState, since we're using it all up now.)
- // TODO: generate fields/elements copies for small objects instead.
- Node* src = obj;
- Node* dest = raw_obj;
- Node* size = _gvn.transform(alloc_siz);
-
- // Exclude the header.
- int base_off = instanceOopDesc::base_offset_in_bytes();
- if (UseCompressedOops) {
- assert(base_off % BytesPerLong != 0, "base with compressed oops");
- // With compressed oops base_offset_in_bytes is 12 which creates
- // the gap since countx is rounded by 8 bytes below.
- // Copy klass and the gap.
- base_off = instanceOopDesc::klass_offset_in_bytes();
- }
- src = basic_plus_adr(src, base_off);
- dest = basic_plus_adr(dest, base_off);
-
- // Compute the length also, if needed:
- Node* countx = size;
- countx = _gvn.transform( new (C, 3) SubXNode(countx, MakeConX(base_off)) );
- countx = _gvn.transform( new (C, 3) URShiftXNode(countx, intcon(LogBytesPerLong) ));
-
- // Select an appropriate instruction to initialize the range.
- // The CopyArray instruction (if supported) can be optimized
- // into a discrete set of scalar loads and stores.
- bool disjoint_bases = true;
- generate_unchecked_arraycopy(raw_adr_type, T_LONG, disjoint_bases,
- src, NULL, dest, NULL, countx);
-
- // Now that the object is properly initialized, type it as an oop.
- // Use a secondary InitializeNode memory barrier.
- InitializeNode* init = insert_mem_bar_volatile(Op_Initialize, raw_adr_idx,
- raw_obj)->as_Initialize();
- init->set_complete(&_gvn); // (there is no corresponding AllocateNode)
- Node* new_obj = new(C, 2) CheckCastPPNode(control(), raw_obj,
- TypeInstPtr::NOTNULL);
- new_obj = _gvn.transform(new_obj);
-
- // If necessary, emit some card marks afterwards. (Non-arrays only.)
- if (card_mark) {
- Node* no_particular_value = NULL;
- Node* no_particular_field = NULL;
- post_barrier(control(),
- memory(raw_adr_type),
- new_obj,
- no_particular_field,
- raw_adr_idx,
- no_particular_value,
- T_OBJECT,
- false);
- }
- // Present the results of the slow call.
- result_reg->init_req(_fast_path, control());
- result_val->init_req(_fast_path, new_obj);
- result_i_o ->set_req(_fast_path, i_o());
- result_mem ->set_req(_fast_path, reset_memory());
- }
-
// Return the combined state.
set_control( _gvn.transform(result_reg) );
set_i_o( _gvn.transform(result_i_o) );
set_all_memory( _gvn.transform(result_mem) );
- // Cast the result to a sharper type, since we know what clone does.
- Node* new_obj = _gvn.transform(result_val);
- Node* cast = new (C, 2) CheckCastPPNode(control(), new_obj, toop);
- push(_gvn.transform(cast));
+ push(_gvn.transform(result_val));
return true;
}
@@ -4279,8 +4273,7 @@
// Call StubRoutines::generic_arraycopy stub.
generate_arraycopy(TypeRawPtr::BOTTOM, T_CONFLICT,
- src, src_offset, dest, dest_offset, length,
- nargs);
+ src, src_offset, dest, dest_offset, length);
// Do not let reads from the destination float above the arraycopy.
// Since we cannot type the arrays, we don't know which slices
@@ -4303,8 +4296,7 @@
// The component types are not the same or are not recognized. Punt.
// (But, avoid the native method wrapper to JVM_ArrayCopy.)
generate_slow_arraycopy(TypePtr::BOTTOM,
- src, src_offset, dest, dest_offset, length,
- nargs);
+ src, src_offset, dest, dest_offset, length);
return true;
}
@@ -4361,7 +4353,7 @@
const TypePtr* adr_type = TypeAryPtr::get_array_body_type(dest_elem);
generate_arraycopy(adr_type, dest_elem,
src, src_offset, dest, dest_offset, length,
- nargs, false, false, slow_region);
+ false, false, slow_region);
return true;
}
@@ -4406,7 +4398,6 @@
Node* src, Node* src_offset,
Node* dest, Node* dest_offset,
Node* copy_length,
- int nargs,
bool disjoint_bases,
bool length_never_negative,
RegionNode* slow_region) {
@@ -4418,7 +4409,6 @@
Node* original_dest = dest;
AllocateArrayNode* alloc = NULL; // used for zeroing, if needed
- Node* raw_dest = NULL; // used before zeroing, if needed
bool must_clear_dest = false;
// See if this is the initialization of a newly-allocated array.
@@ -4437,15 +4427,18 @@
// "You break it, you buy it."
InitializeNode* init = alloc->initialization();
assert(init->is_complete(), "we just did this");
- assert(dest->Opcode() == Op_CheckCastPP, "sanity");
+ assert(dest->is_CheckCastPP(), "sanity");
assert(dest->in(0)->in(0) == init, "dest pinned");
- raw_dest = dest->in(1); // grab the raw pointer!
- original_dest = dest;
- dest = raw_dest;
+
+ // Cast to Object for arraycopy.
+ // We can't use the original CheckCastPP since it should be moved
+ // after the arraycopy to prevent stores flowing above it.
+ Node* new_obj = new(C, 2) CheckCastPPNode(dest->in(0), dest->in(1),
+ TypeInstPtr::NOTNULL);
+ dest = _gvn.transform(new_obj);
+ // Substitute in the locally valid dest_oop.
+ replace_in_map(original_dest, dest);
adr_type = TypeRawPtr::BOTTOM; // all initializations are into raw memory
- // Decouple the original InitializeNode, turning it into a simple membar.
- // We will build a new one at the end of this routine.
- init->set_req(InitializeNode::RawAddress, top());
// From this point on, every exit path is responsible for
// initializing any non-copied parts of the object to zero.
must_clear_dest = true;
@@ -4488,7 +4481,7 @@
assert(!must_clear_dest, "");
Node* cv = generate_generic_arraycopy(adr_type,
src, src_offset, dest, dest_offset,
- copy_length, nargs);
+ copy_length);
if (cv == NULL) cv = intcon(-1); // failure (no stub available)
checked_control = control();
checked_i_o = i_o();
@@ -4507,16 +4500,24 @@
generate_negative_guard(copy_length, slow_region);
}
+ // copy_length is 0.
if (!stopped() && must_clear_dest) {
Node* dest_length = alloc->in(AllocateNode::ALength);
if (_gvn.eqv_uncast(copy_length, dest_length)
|| _gvn.find_int_con(dest_length, 1) <= 0) {
- // There is no zeroing to do.
+ // There is no zeroing to do. No need for a secondary raw memory barrier.
} else {
// Clear the whole thing since there are no source elements to copy.
generate_clear_array(adr_type, dest, basic_elem_type,
intcon(0), NULL,
alloc->in(AllocateNode::AllocSize));
+ // Use a secondary InitializeNode as raw memory barrier.
+ // Currently it is needed only on this path since other
+ // paths have stub or runtime calls as raw memory barriers.
+ InitializeNode* init = insert_mem_bar_volatile(Op_Initialize,
+ Compile::AliasIdxRaw,
+ top())->as_Initialize();
+ init->set_complete(&_gvn); // (there is no corresponding AllocateNode)
}
}
@@ -4638,8 +4639,7 @@
Node* cv = generate_checkcast_arraycopy(adr_type,
dest_elem_klass,
src, src_offset, dest, dest_offset,
- copy_length,
- nargs);
+ copy_length);
if (cv == NULL) cv = intcon(-1); // failure (no stub available)
checked_control = control();
checked_i_o = i_o();
@@ -4701,8 +4701,8 @@
slow_i_o2 ->init_req(1, slow_i_o);
slow_mem2 ->init_req(1, slow_mem);
slow_reg2 ->init_req(2, control());
- slow_i_o2 ->init_req(2, i_o());
- slow_mem2 ->init_req(2, memory(adr_type));
+ slow_i_o2 ->init_req(2, checked_i_o);
+ slow_mem2 ->init_req(2, checked_mem);
slow_control = _gvn.transform(slow_reg2);
slow_i_o = _gvn.transform(slow_i_o2);
@@ -4747,21 +4747,9 @@
alloc->in(AllocateNode::AllocSize));
}
- if (dest != original_dest) {
- // Promote from rawptr to oop, so it looks right in the call's GC map.
- dest = _gvn.transform( new(C,2) CheckCastPPNode(control(), dest,
- TypeInstPtr::NOTNULL) );
-
- // Edit the call's debug-info to avoid referring to original_dest.
- // (The problem with original_dest is that it isn't ready until
- // after the InitializeNode completes, but this stuff is before.)
- // Substitute in the locally valid dest_oop.
- replace_in_map(original_dest, dest);
- }
-
generate_slow_arraycopy(adr_type,
src, src_offset, dest, dest_offset,
- copy_length, nargs);
+ copy_length);
result_region->init_req(slow_call_path, control());
result_i_o ->init_req(slow_call_path, i_o());
@@ -4781,16 +4769,16 @@
if (dest != original_dest) {
// Pin the "finished" array node after the arraycopy/zeroing operations.
- // Use a secondary InitializeNode memory barrier.
- InitializeNode* init = insert_mem_bar_volatile(Op_Initialize,
- Compile::AliasIdxRaw,
- raw_dest)->as_Initialize();
- init->set_complete(&_gvn); // (there is no corresponding AllocateNode)
_gvn.hash_delete(original_dest);
original_dest->set_req(0, control());
+ // Replace raw memory edge with new CheckCastPP to have a live oop
+ // at safepoints instead of raw value.
+ assert(dest->is_CheckCastPP() && dest->in(1) == original_dest->in(1), "sanity");
+ original_dest->set_req(1, dest); // cast to the original type
_gvn.hash_find_insert(original_dest); // put back into GVN table
+ // Restore in the locally valid dest_oop.
+ replace_in_map(dest, original_dest);
}
-
// The memory edges above are precise in order to model effects around
// array copies accurately to allow value numbering of field loads around
// arraycopy. Such field loads, both before and after, are common in Java
@@ -5074,16 +5062,13 @@
LibraryCallKit::generate_slow_arraycopy(const TypePtr* adr_type,
Node* src, Node* src_offset,
Node* dest, Node* dest_offset,
- Node* copy_length,
- int nargs) {
- _sp += nargs; // any deopt will start just before call to enclosing method
+ Node* copy_length) {
Node* call = make_runtime_call(RC_NO_LEAF | RC_UNCOMMON,
OptoRuntime::slow_arraycopy_Type(),
OptoRuntime::slow_arraycopy_Java(),
"slow_arraycopy", adr_type,
src, src_offset, dest, dest_offset,
copy_length);
- _sp -= nargs;
// Handle exceptions thrown by this fellow:
make_slow_call_ex(call, env()->Throwable_klass(), false);
@@ -5095,8 +5080,7 @@
Node* dest_elem_klass,
Node* src, Node* src_offset,
Node* dest, Node* dest_offset,
- Node* copy_length,
- int nargs) {
+ Node* copy_length) {
if (stopped()) return NULL;
address copyfunc_addr = StubRoutines::checkcast_arraycopy();
@@ -5137,8 +5121,7 @@
LibraryCallKit::generate_generic_arraycopy(const TypePtr* adr_type,
Node* src, Node* src_offset,
Node* dest, Node* dest_offset,
- Node* copy_length,
- int nargs) {
+ Node* copy_length) {
if (stopped()) return NULL;
address copyfunc_addr = StubRoutines::generic_arraycopy();
--- a/hotspot/src/share/vm/opto/loopopts.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/opto/loopopts.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -667,7 +667,6 @@
}
}
-#ifdef _LP64
static bool merge_point_safe(Node* region) {
// 4799512: Stop split_if_with_blocks from splitting a block with a ConvI2LNode
// having a PhiNode input. This sidesteps the dangerous case where the split
@@ -676,20 +675,25 @@
// uses.
// A better fix for this problem can be found in the BugTraq entry, but
// expediency for Mantis demands this hack.
+ // 6855164: If the merge point has a FastLockNode with a PhiNode input, we stop
+ // split_if_with_blocks from splitting a block because we could not move around
+ // the FastLockNode.
for (DUIterator_Fast imax, i = region->fast_outs(imax); i < imax; i++) {
Node* n = region->fast_out(i);
if (n->is_Phi()) {
for (DUIterator_Fast jmax, j = n->fast_outs(jmax); j < jmax; j++) {
Node* m = n->fast_out(j);
- if (m->Opcode() == Op_ConvI2L) {
+ if (m->is_FastLock())
return false;
- }
+#ifdef _LP64
+ if (m->Opcode() == Op_ConvI2L)
+ return false;
+#endif
}
}
}
return true;
}
-#endif
//------------------------------place_near_use---------------------------------
@@ -771,12 +775,10 @@
if( get_loop(n_ctrl->in(j)) != n_loop )
return;
-#ifdef _LP64
// Check for safety of the merge point.
if( !merge_point_safe(n_ctrl) ) {
return;
}
-#endif
// Split compare 'n' through the merge point if it is profitable
Node *phi = split_thru_phi( n, n_ctrl, policy );
--- a/hotspot/src/share/vm/opto/matcher.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/opto/matcher.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -141,6 +141,10 @@
//---------------------------match---------------------------------------------
void Matcher::match( ) {
+ if( MaxLabelRootDepth < 100 ) { // Too small?
+ assert(false, "invalid MaxLabelRootDepth, increase it to 100 minimum");
+ MaxLabelRootDepth = 100;
+ }
// One-time initialization of some register masks.
init_spill_mask( C->root()->in(1) );
_return_addr_mask = return_addr();
--- a/hotspot/src/share/vm/opto/mulnode.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/opto/mulnode.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -430,31 +430,28 @@
// x & x => x
if (phase->eqv(in(1), in(2))) return in(1);
- Node *load = in(1);
- const TypeInt *t2 = phase->type( in(2) )->isa_int();
- if( t2 && t2->is_con() ) {
+ Node* in1 = in(1);
+ uint op = in1->Opcode();
+ const TypeInt* t2 = phase->type(in(2))->isa_int();
+ if (t2 && t2->is_con()) {
int con = t2->get_con();
// Masking off high bits which are always zero is useless.
const TypeInt* t1 = phase->type( in(1) )->isa_int();
if (t1 != NULL && t1->_lo >= 0) {
- jint t1_support = ((jint)1 << (1 + log2_intptr(t1->_hi))) - 1;
+ jint t1_support = right_n_bits(1 + log2_intptr(t1->_hi));
if ((t1_support & con) == t1_support)
- return load;
+ return in1;
}
- uint lop = load->Opcode();
- if( lop == Op_LoadUS &&
- con == 0x0000FFFF ) // Already zero-extended
- return load;
// Masking off the high bits of a unsigned-shift-right is not
// needed either.
- if( lop == Op_URShiftI ) {
- const TypeInt *t12 = phase->type( load->in(2) )->isa_int();
- if( t12 && t12->is_con() ) { // Shift is by a constant
+ if (op == Op_URShiftI) {
+ const TypeInt* t12 = phase->type(in1->in(2))->isa_int();
+ if (t12 && t12->is_con()) { // Shift is by a constant
int shift = t12->get_con();
shift &= BitsPerJavaInteger - 1; // semantics of Java shifts
int mask = max_juint >> shift;
- if( (mask&con) == mask ) // If AND is useless, skip it
- return load;
+ if ((mask & con) == mask) // If AND is useless, skip it
+ return in1;
}
}
}
@@ -476,26 +473,17 @@
return new (phase->C, 3) AndINode(load,phase->intcon(mask&0xFFFF));
// Masking bits off of a Short? Loading a Character does some masking
- if( lop == Op_LoadS &&
- (mask & 0xFFFF0000) == 0 ) {
+ if (lop == Op_LoadS && (mask & 0xFFFF0000) == 0 ) {
Node *ldus = new (phase->C, 3) LoadUSNode(load->in(MemNode::Control),
- load->in(MemNode::Memory),
- load->in(MemNode::Address),
- load->adr_type());
+ load->in(MemNode::Memory),
+ load->in(MemNode::Address),
+ load->adr_type());
ldus = phase->transform(ldus);
- return new (phase->C, 3) AndINode(ldus, phase->intcon(mask&0xFFFF));
+ return new (phase->C, 3) AndINode(ldus, phase->intcon(mask & 0xFFFF));
}
- // Masking sign bits off of a Byte? Do an unsigned byte load.
- if (lop == Op_LoadB && mask == 0x000000FF) {
- return new (phase->C, 3) LoadUBNode(load->in(MemNode::Control),
- load->in(MemNode::Memory),
- load->in(MemNode::Address),
- load->adr_type());
- }
-
- // Masking sign bits off of a Byte plus additional lower bits? Do
- // an unsigned byte load plus an and.
+ // Masking sign bits off of a Byte? Do an unsigned byte load plus
+ // an and.
if (lop == Op_LoadB && (mask & 0xFFFFFF00) == 0) {
Node* ldub = new (phase->C, 3) LoadUBNode(load->in(MemNode::Control),
load->in(MemNode::Memory),
@@ -605,8 +593,13 @@
Node* in1 = in(1);
uint op = in1->Opcode();
- // Masking sign bits off of an integer? Do an unsigned integer to long load.
- if (op == Op_ConvI2L && in1->in(1)->Opcode() == Op_LoadI && mask == 0x00000000FFFFFFFFL) {
+ // Masking sign bits off of an integer? Do an unsigned integer to
+ // long load.
+ // NOTE: This check must be *before* we try to convert the AndLNode
+ // to an AndINode and commute it with ConvI2LNode because
+ // 0xFFFFFFFFL masks the whole integer and we get a sign extension,
+ // which is wrong.
+ if (op == Op_ConvI2L && in1->in(1)->Opcode() == Op_LoadI && mask == CONST64(0x00000000FFFFFFFF)) {
Node* load = in1->in(1);
return new (phase->C, 3) LoadUI2LNode(load->in(MemNode::Control),
load->in(MemNode::Memory),
@@ -614,9 +607,22 @@
load->adr_type());
}
+ // Are we masking a long that was converted from an int with a mask
+ // that fits in 32-bits? Commute them and use an AndINode.
+ if (op == Op_ConvI2L && (mask & CONST64(0xFFFFFFFF00000000)) == 0) {
+ // If we are doing an UI2L conversion (i.e. the mask is
+ // 0x00000000FFFFFFFF) we cannot convert the AndL to an AndI
+ // because the AndI would be optimized away later in Identity.
+ if (mask != CONST64(0x00000000FFFFFFFF)) {
+ Node* andi = new (phase->C, 3) AndINode(in1->in(1), phase->intcon(mask));
+ andi = phase->transform(andi);
+ return new (phase->C, 2) ConvI2LNode(andi);
+ }
+ }
+
// Masking off sign bits? Dont make them!
if (op == Op_RShiftL) {
- const TypeInt *t12 = phase->type(in1->in(2))->isa_int();
+ const TypeInt* t12 = phase->type(in1->in(2))->isa_int();
if( t12 && t12->is_con() ) { // Shift is by a constant
int shift = t12->get_con();
shift &= BitsPerJavaLong - 1; // semantics of Java shifts
@@ -626,7 +632,7 @@
if( (sign_bits_mask & mask) == 0 ) {
// Use zero-fill shift instead
Node *zshift = phase->transform(new (phase->C, 3) URShiftLNode(in1->in(1), in1->in(2)));
- return new (phase->C, 3) AndLNode( zshift, in(2) );
+ return new (phase->C, 3) AndLNode(zshift, in(2));
}
}
}
--- a/hotspot/src/share/vm/opto/parse2.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/opto/parse2.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -1565,7 +1565,7 @@
c = pop(); // Oop to store
b = pop(); // index (already used)
a = pop(); // the array itself
- const Type* elemtype = _gvn.type(a)->is_aryptr()->elem();
+ const TypeOopPtr* elemtype = _gvn.type(a)->is_aryptr()->elem()->make_oopptr();
const TypeAryPtr* adr_type = TypeAryPtr::OOPS;
Node* store = store_oop_to_array(control(), a, d, adr_type, c, elemtype, T_OBJECT);
break;
--- a/hotspot/src/share/vm/opto/parse3.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/opto/parse3.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -222,7 +222,7 @@
// Store the value.
Node* store;
if (bt == T_OBJECT) {
- const TypePtr* field_type;
+ const TypeOopPtr* field_type;
if (!field->type()->is_loaded()) {
field_type = TypeInstPtr::BOTTOM;
} else {
@@ -361,7 +361,7 @@
guarantee(length_con >= 0, "non-constant multianewarray");
ciArrayKlass* array_klass_1 = array_klass->as_obj_array_klass()->element_klass()->as_array_klass();
const TypePtr* adr_type = TypeAryPtr::OOPS;
- const Type* elemtype = _gvn.type(array)->is_aryptr()->elem();
+ const TypeOopPtr* elemtype = _gvn.type(array)->is_aryptr()->elem()->make_oopptr();
const intptr_t header = arrayOopDesc::base_offset_in_bytes(T_OBJECT);
for (jint i = 0; i < length_con; i++) {
Node* elem = expand_multianewarray(array_klass_1, &lengths[1], ndimensions-1, nargs);
--- a/hotspot/src/share/vm/opto/type.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/opto/type.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -487,6 +487,23 @@
return false;
}
+//----------------------interface_vs_oop---------------------------------------
+#ifdef ASSERT
+bool Type::interface_vs_oop(const Type *t) const {
+ bool result = false;
+
+ const TypeInstPtr* this_inst = this->isa_instptr();
+ const TypeInstPtr* t_inst = t->isa_instptr();
+ if( this_inst && this_inst->is_loaded() && t_inst && t_inst->is_loaded() ) {
+ bool this_interface = this_inst->klass()->is_interface();
+ bool t_interface = t_inst->klass()->is_interface();
+ result = this_interface ^ t_interface;
+ }
+
+ return result;
+}
+#endif
+
//------------------------------meet-------------------------------------------
// Compute the MEET of two types. NOT virtual. It enforces that meet is
// commutative and the lattice is symmetric.
@@ -507,16 +524,8 @@
// Interface meet Oop is Not Symmetric:
// Interface:AnyNull meet Oop:AnyNull == Interface:AnyNull
// Interface:NotNull meet Oop:NotNull == java/lang/Object:NotNull
- const TypeInstPtr* this_inst = this->isa_instptr();
- const TypeInstPtr* t_inst = t->isa_instptr();
- bool interface_vs_oop = false;
- if( this_inst && this_inst->is_loaded() && t_inst && t_inst->is_loaded() ) {
- bool this_interface = this_inst->klass()->is_interface();
- bool t_interface = t_inst->klass()->is_interface();
- interface_vs_oop = this_interface ^ t_interface;
- }
-
- if( !interface_vs_oop && (t2t != t->_dual || t2this != _dual) ) {
+
+ if( !interface_vs_oop(t) && (t2t != t->_dual || t2this != _dual) ) {
tty->print_cr("=== Meet Not Symmetric ===");
tty->print("t = "); t->dump(); tty->cr();
tty->print("this= "); dump(); tty->cr();
@@ -1800,6 +1809,17 @@
return (intptr_t)_elem + (intptr_t)_size;
}
+//----------------------interface_vs_oop---------------------------------------
+#ifdef ASSERT
+bool TypeAry::interface_vs_oop(const Type *t) const {
+ const TypeAry* t_ary = t->is_ary();
+ if (t_ary) {
+ return _elem->interface_vs_oop(t_ary->_elem);
+ }
+ return false;
+}
+#endif
+
//------------------------------dump2------------------------------------------
#ifndef PRODUCT
void TypeAry::dump2( Dict &d, uint depth, outputStream *st ) const {
@@ -3389,6 +3409,17 @@
return new TypeAryPtr( dual_ptr(), _const_oop, _ary->dual()->is_ary(),_klass, _klass_is_exact, dual_offset(), dual_instance_id() );
}
+//----------------------interface_vs_oop---------------------------------------
+#ifdef ASSERT
+bool TypeAryPtr::interface_vs_oop(const Type *t) const {
+ const TypeAryPtr* t_aryptr = t->isa_aryptr();
+ if (t_aryptr) {
+ return _ary->interface_vs_oop(t_aryptr->_ary);
+ }
+ return false;
+}
+#endif
+
//------------------------------dump2------------------------------------------
#ifndef PRODUCT
void TypeAryPtr::dump2( Dict &d, uint depth, outputStream *st ) const {
@@ -3453,27 +3484,27 @@
//------------------------------hash-------------------------------------------
// Type-specific hashing function.
int TypeNarrowOop::hash(void) const {
- return _ooptype->hash() + 7;
+ return _ptrtype->hash() + 7;
}
bool TypeNarrowOop::eq( const Type *t ) const {
const TypeNarrowOop* tc = t->isa_narrowoop();
if (tc != NULL) {
- if (_ooptype->base() != tc->_ooptype->base()) {
+ if (_ptrtype->base() != tc->_ptrtype->base()) {
return false;
}
- return tc->_ooptype->eq(_ooptype);
+ return tc->_ptrtype->eq(_ptrtype);
}
return false;
}
bool TypeNarrowOop::singleton(void) const { // TRUE if type is a singleton
- return _ooptype->singleton();
+ return _ptrtype->singleton();
}
bool TypeNarrowOop::empty(void) const {
- return _ooptype->empty();
+ return _ptrtype->empty();
}
//------------------------------xmeet------------------------------------------
@@ -3507,7 +3538,7 @@
return this;
case NarrowOop: {
- const Type* result = _ooptype->xmeet(t->make_ptr());
+ const Type* result = _ptrtype->xmeet(t->make_ptr());
if (result->isa_ptr()) {
return TypeNarrowOop::make(result->is_ptr());
}
@@ -3523,13 +3554,13 @@
}
const Type *TypeNarrowOop::xdual() const { // Compute dual right now.
- const TypePtr* odual = _ooptype->dual()->is_ptr();
+ const TypePtr* odual = _ptrtype->dual()->is_ptr();
return new TypeNarrowOop(odual);
}
const Type *TypeNarrowOop::filter( const Type *kills ) const {
if (kills->isa_narrowoop()) {
- const Type* ft =_ooptype->filter(kills->is_narrowoop()->_ooptype);
+ const Type* ft =_ptrtype->filter(kills->is_narrowoop()->_ptrtype);
if (ft->empty())
return Type::TOP; // Canonical empty value
if (ft->isa_ptr()) {
@@ -3537,7 +3568,7 @@
}
return ft;
} else if (kills->isa_ptr()) {
- const Type* ft = _ooptype->join(kills);
+ const Type* ft = _ptrtype->join(kills);
if (ft->empty())
return Type::TOP; // Canonical empty value
return ft;
@@ -3548,13 +3579,13 @@
intptr_t TypeNarrowOop::get_con() const {
- return _ooptype->get_con();
+ return _ptrtype->get_con();
}
#ifndef PRODUCT
void TypeNarrowOop::dump2( Dict & d, uint depth, outputStream *st ) const {
st->print("narrowoop: ");
- _ooptype->dump2(d, depth, st);
+ _ptrtype->dump2(d, depth, st);
}
#endif
--- a/hotspot/src/share/vm/opto/type.hpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/opto/type.hpp Wed Jul 05 16:56:36 2017 +0200
@@ -190,6 +190,11 @@
// Currently, it also works around limitations involving interface types.
virtual const Type *filter( const Type *kills ) const;
+#ifdef ASSERT
+ // One type is interface, the other is oop
+ virtual bool interface_vs_oop(const Type *t) const;
+#endif
+
// Returns true if this pointer points at memory which contains a
// compressed oop references.
bool is_ptr_to_narrowoop() const;
@@ -227,6 +232,11 @@
// Returns this ptr type or the equivalent ptr type for this compressed pointer.
const TypePtr* make_ptr() const;
+
+ // Returns this oopptr type or the equivalent oopptr type for this compressed pointer.
+ // Asserts if the underlying type is not an oopptr or narrowoop.
+ const TypeOopPtr* make_oopptr() const;
+
// Returns this compressed pointer or the equivalent compressed version
// of this pointer type.
const TypeNarrowOop* make_narrowoop() const;
@@ -546,6 +556,10 @@
virtual const Type *xmeet( const Type *t ) const;
virtual const Type *xdual() const; // Compute dual right now.
bool ary_must_be_exact() const; // true if arrays of such are never generic
+#ifdef ASSERT
+ // One type is interface, the other is oop
+ virtual bool interface_vs_oop(const Type *t) const;
+#endif
#ifndef PRODUCT
virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping
#endif
@@ -867,6 +881,10 @@
}
static const TypeAryPtr *_array_body_type[T_CONFLICT+1];
// sharpen the type of an int which is used as an array size
+#ifdef ASSERT
+ // One type is interface, the other is oop
+ virtual bool interface_vs_oop(const Type *t) const;
+#endif
#ifndef PRODUCT
virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
#endif
@@ -919,13 +937,13 @@
// between the normal and the compressed form.
class TypeNarrowOop : public Type {
protected:
- const TypePtr* _ooptype; // Could be TypePtr::NULL_PTR
+ const TypePtr* _ptrtype; // Could be TypePtr::NULL_PTR
- TypeNarrowOop( const TypePtr* ooptype): Type(NarrowOop),
- _ooptype(ooptype) {
- assert(ooptype->offset() == 0 ||
- ooptype->offset() == OffsetBot ||
- ooptype->offset() == OffsetTop, "no real offsets");
+ TypeNarrowOop( const TypePtr* ptrtype): Type(NarrowOop),
+ _ptrtype(ptrtype) {
+ assert(ptrtype->offset() == 0 ||
+ ptrtype->offset() == OffsetBot ||
+ ptrtype->offset() == OffsetTop, "no real offsets");
}
public:
virtual bool eq( const Type *t ) const;
@@ -949,8 +967,8 @@
}
// returns the equivalent ptr type for this compressed pointer
- const TypePtr *make_oopptr() const {
- return _ooptype;
+ const TypePtr *get_ptrtype() const {
+ return _ptrtype;
}
static const TypeNarrowOop *BOTTOM;
@@ -1137,10 +1155,14 @@
}
inline const TypePtr* Type::make_ptr() const {
- return (_base == NarrowOop) ? is_narrowoop()->make_oopptr() :
+ return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype() :
(isa_ptr() ? is_ptr() : NULL);
}
+inline const TypeOopPtr* Type::make_oopptr() const {
+ return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype()->is_oopptr() : is_oopptr();
+}
+
inline const TypeNarrowOop* Type::make_narrowoop() const {
return (_base == NarrowOop) ? is_narrowoop() :
(isa_ptr() ? TypeNarrowOop::make(is_ptr()) : NULL);
--- a/hotspot/src/share/vm/prims/jvmtiEnvBase.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/prims/jvmtiEnvBase.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -606,6 +606,7 @@
if (!mons->is_empty()) {
for (int i = 0; i < mons->length(); i++) {
MonitorInfo *mi = mons->at(i);
+ if (mi->owner_is_scalar_replaced()) continue;
// see if owner of the monitor is our object
if (mi->owner() != NULL && mi->owner() == hobj()) {
@@ -726,6 +727,8 @@
for (int i = 0; i < mons->length(); i++) {
MonitorInfo *mi = mons->at(i);
+ if (mi->owner_is_scalar_replaced()) continue;
+
oop obj = mi->owner();
if (obj == NULL) {
// this monitor doesn't have an owning object so skip it
--- a/hotspot/src/share/vm/runtime/biasedLocking.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/runtime/biasedLocking.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -121,6 +121,7 @@
// Walk monitors youngest to oldest
for (int i = len - 1; i >= 0; i--) {
MonitorInfo* mon_info = monitors->at(i);
+ if (mon_info->owner_is_scalar_replaced()) continue;
oop owner = mon_info->owner();
if (owner != NULL) {
info->append(mon_info);
@@ -694,6 +695,7 @@
// Walk monitors youngest to oldest
for (int i = len - 1; i >= 0; i--) {
MonitorInfo* mon_info = monitors->at(i);
+ if (mon_info->owner_is_scalar_replaced()) continue;
oop owner = mon_info->owner();
if (owner != NULL) {
markOop mark = owner->mark();
--- a/hotspot/src/share/vm/runtime/deoptimization.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/runtime/deoptimization.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -933,7 +933,7 @@
GrowableArray<MonitorInfo*>* monitors = cvf->monitors();
for (int i = 0; i < monitors->length(); i++) {
MonitorInfo* mon_info = monitors->at(i);
- if (mon_info->owner() != NULL && !mon_info->eliminated()) {
+ if (!mon_info->eliminated() && mon_info->owner() != NULL) {
objects_to_revoke->append(Handle(mon_info->owner()));
}
}
--- a/hotspot/src/share/vm/runtime/globals.hpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/runtime/globals.hpp Wed Jul 05 16:56:36 2017 +0200
@@ -1994,6 +1994,10 @@
product_rw(bool, PrintHeapAtGC, false, \
"Print heap layout before and after each GC") \
\
+ product_rw(bool, PrintHeapAtGCExtended, false, \
+ "Prints extended information about the layout of the heap " \
+ "when -XX:+PrintHeapAtGC is set") \
+ \
product(bool, PrintHeapAtSIGBREAK, true, \
"Print heap layout in response to SIGBREAK") \
\
--- a/hotspot/src/share/vm/runtime/stackValue.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/runtime/stackValue.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -146,8 +146,9 @@
value.jl = ((ConstantLongValue *)sv)->value();
return new StackValue(value.p);
#endif
- } else if (sv->is_object()) {
- return new StackValue(((ObjectValue *)sv)->value());
+ } else if (sv->is_object()) { // Scalar replaced object in compiled frame
+ Handle ov = ((ObjectValue *)sv)->value();
+ return new StackValue(ov, (ov.is_null()) ? 1 : 0);
}
// Unknown ScopeValue type
--- a/hotspot/src/share/vm/runtime/stackValue.hpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/runtime/stackValue.hpp Wed Jul 05 16:56:36 2017 +0200
@@ -34,9 +34,11 @@
_i = value;
}
- StackValue(Handle value) {
+ StackValue(Handle value, intptr_t scalar_replaced = 0) {
_type = T_OBJECT;
+ _i = scalar_replaced;
_o = value;
+ assert(_i == 0 || _o.is_null(), "not null object should not be marked as scalar replaced");
}
StackValue() {
@@ -56,6 +58,11 @@
return _o;
}
+ bool obj_is_scalar_replaced() const {
+ assert(type() == T_OBJECT, "type check");
+ return _i != 0;
+ }
+
void set_obj(Handle value) {
assert(type() == T_OBJECT, "type check");
_o = value;
--- a/hotspot/src/share/vm/runtime/vframe.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/runtime/vframe.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -106,6 +106,7 @@
for (int index = (mons->length()-1); index >= 0; index--) {
MonitorInfo* monitor = mons->at(index);
+ if (monitor->eliminated() && is_compiled_frame()) continue; // skip eliminated monitor
oop obj = monitor->owner();
if (obj == NULL) continue; // skip unowned monitor
//
@@ -162,6 +163,18 @@
bool found_first_monitor = false;
for (int index = (mons->length()-1); index >= 0; index--) {
MonitorInfo* monitor = mons->at(index);
+ if (monitor->eliminated() && is_compiled_frame()) { // Eliminated in compiled code
+ if (monitor->owner_is_scalar_replaced()) {
+ Klass* k = Klass::cast(monitor->owner_klass());
+ st->print("\t- eliminated <owner is scalar replaced> (a %s)", k->external_name());
+ } else {
+ oop obj = monitor->owner();
+ if (obj != NULL) {
+ print_locked_object_class_name(st, obj, "eliminated");
+ }
+ }
+ continue;
+ }
if (monitor->owner() != NULL) {
// First, assume we have the monitor locked. If we haven't found an
@@ -171,11 +184,11 @@
const char *lock_state = "locked"; // assume we have the monitor locked
if (!found_first_monitor && frame_count == 0) {
- markOop mark = monitor->owner()->mark();
- if (mark->has_monitor() &&
- mark->monitor() == thread()->current_pending_monitor()) {
+ markOop mark = monitor->owner()->mark();
+ if (mark->has_monitor() &&
+ mark->monitor() == thread()->current_pending_monitor()) {
lock_state = "waiting to lock";
- }
+ }
}
found_first_monitor = true;
@@ -206,7 +219,7 @@
for (BasicObjectLock* current = (fr().previous_monitor_in_interpreter_frame(fr().interpreter_frame_monitor_begin()));
current >= fr().interpreter_frame_monitor_end();
current = fr().previous_monitor_in_interpreter_frame(current)) {
- result->push(new MonitorInfo(current->obj(), current->lock(), false));
+ result->push(new MonitorInfo(current->obj(), current->lock(), false, false));
}
return result;
}
@@ -531,8 +544,18 @@
tty->print_cr("\tmonitor list:");
for (int index = (list->length()-1); index >= 0; index--) {
MonitorInfo* monitor = list->at(index);
- tty->print("\t obj\t"); monitor->owner()->print_value();
- tty->print("(" INTPTR_FORMAT ")", (address)monitor->owner());
+ tty->print("\t obj\t");
+ if (monitor->owner_is_scalar_replaced()) {
+ Klass* k = Klass::cast(monitor->owner_klass());
+ tty->print("( is scalar replaced %s)", k->external_name());
+ } else if (monitor->owner() == NULL) {
+ tty->print("( null )");
+ } else {
+ monitor->owner()->print_value();
+ tty->print("(" INTPTR_FORMAT ")", (address)monitor->owner());
+ }
+ if (monitor->eliminated() && is_compiled_frame())
+ tty->print(" ( lock is eliminated )");
tty->cr();
tty->print("\t ");
monitor->lock()->print_on(tty);
--- a/hotspot/src/share/vm/runtime/vframe.hpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/runtime/vframe.hpp Wed Jul 05 16:56:36 2017 +0200
@@ -230,18 +230,36 @@
private:
oop _owner; // the object owning the monitor
BasicLock* _lock;
+ oop _owner_klass; // klass if owner was scalar replaced
bool _eliminated;
+ bool _owner_is_scalar_replaced;
public:
// Constructor
- MonitorInfo(oop owner, BasicLock* lock, bool eliminated) {
- _owner = owner;
+ MonitorInfo(oop owner, BasicLock* lock, bool eliminated, bool owner_is_scalar_replaced) {
+ if (!owner_is_scalar_replaced) {
+ _owner = owner;
+ _owner_klass = NULL;
+ } else {
+ assert(eliminated, "monitor should be eliminated for scalar replaced object");
+ _owner = NULL;
+ _owner_klass = owner;
+ }
_lock = lock;
_eliminated = eliminated;
+ _owner_is_scalar_replaced = owner_is_scalar_replaced;
}
// Accessors
- oop owner() const { return _owner; }
+ oop owner() const {
+ assert(!_owner_is_scalar_replaced, "should not be called for scalar replaced object");
+ return _owner;
+ }
+ klassOop owner_klass() const {
+ assert(_owner_is_scalar_replaced, "should not be called for not scalar replaced object");
+ return (klassOop)_owner_klass;
+ }
BasicLock* lock() const { return _lock; }
bool eliminated() const { return _eliminated; }
+ bool owner_is_scalar_replaced() const { return _owner_is_scalar_replaced; }
};
class vframeStreamCommon : StackObj {
--- a/hotspot/src/share/vm/runtime/vframeArray.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/runtime/vframeArray.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -61,6 +61,7 @@
// Migrate the BasicLocks from the stack to the monitor chunk
for (index = 0; index < list->length(); index++) {
MonitorInfo* monitor = list->at(index);
+ assert(!monitor->owner_is_scalar_replaced(), "object should be reallocated already");
assert(monitor->owner() == NULL || (!monitor->owner()->is_unlocked() && !monitor->owner()->has_bias_pattern()), "object must be null or locked, and unbiased");
BasicObjectLock* dest = _monitors->at(index);
dest->set_obj(monitor->owner());
@@ -89,6 +90,7 @@
StackValue* value = locs->at(index);
switch(value->type()) {
case T_OBJECT:
+ assert(!value->obj_is_scalar_replaced(), "object should be reallocated already");
// preserve object type
_locals->add( new StackValue((intptr_t) (value->get_obj()()), T_OBJECT ));
break;
@@ -113,6 +115,7 @@
StackValue* value = exprs->at(index);
switch(value->type()) {
case T_OBJECT:
+ assert(!value->obj_is_scalar_replaced(), "object should be reallocated already");
// preserve object type
_expressions->add( new StackValue((intptr_t) (value->get_obj()()), T_OBJECT ));
break;
--- a/hotspot/src/share/vm/runtime/vframe_hp.cpp Wed Jul 05 16:56:12 2017 +0200
+++ b/hotspot/src/share/vm/runtime/vframe_hp.cpp Wed Jul 05 16:56:36 2017 +0200
@@ -190,7 +190,7 @@
// Casting away const
frame& fr = (frame&) _fr;
MonitorInfo* info = new MonitorInfo(fr.compiled_synchronized_native_monitor_owner(nm),
- fr.compiled_synchronized_native_monitor(nm), false);
+ fr.compiled_synchronized_native_monitor(nm), false, false);
monitors->push(info);
return monitors;
}
@@ -201,8 +201,20 @@
GrowableArray<MonitorInfo*>* result = new GrowableArray<MonitorInfo*>(monitors->length());
for (int index = 0; index < monitors->length(); index++) {
MonitorValue* mv = monitors->at(index);
- StackValue *owner_sv = create_stack_value(mv->owner()); // it is an oop
- result->push(new MonitorInfo(owner_sv->get_obj()(), resolve_monitor_lock(mv->basic_lock()), mv->eliminated()));
+ ScopeValue* ov = mv->owner();
+ StackValue *owner_sv = create_stack_value(ov); // it is an oop
+ if (ov->is_object() && owner_sv->obj_is_scalar_replaced()) { // The owner object was scalar replaced
+ assert(mv->eliminated(), "monitor should be eliminated for scalar replaced object");
+ // Put klass for scalar replaced object.
+ ScopeValue* kv = ((ObjectValue *)ov)->klass();
+ assert(kv->is_constant_oop(), "klass should be oop constant for scalar replaced object");
+ KlassHandle k(((ConstantOopReadValue*)kv)->value()());
+ result->push(new MonitorInfo(k->as_klassOop(), resolve_monitor_lock(mv->basic_lock()),
+ mv->eliminated(), true));
+ } else {
+ result->push(new MonitorInfo(owner_sv->get_obj()(), resolve_monitor_lock(mv->basic_lock()),
+ mv->eliminated(), false));
+ }
}
return result;
}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/5057225/Test5057225.java Wed Jul 05 16:56:36 2017 +0200
@@ -0,0 +1,140 @@
+/*
+ * 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 5057225
+ * @summary Remove useless I2L conversions
+ *
+ * @run main/othervm -Xcomp -XX:CompileOnly=Test5057225.doload Test5057225
+ */
+
+import java.net.URLClassLoader;
+
+public class Test5057225 {
+ static byte[] ba = new byte[] { -1 };
+ static short[] sa = new short[] { -1 };
+ static int[] ia = new int[] { -1 };
+
+ static final long[] BYTE_MASKS = {
+ 0x0FL,
+ 0x7FL, // 7-bit
+ 0xFFL,
+ };
+
+ static final long[] SHORT_MASKS = {
+ 0x000FL,
+ 0x007FL, // 7-bit
+ 0x00FFL,
+ 0x0FFFL,
+ 0x3FFFL, // 14-bit
+ 0x7FFFL, // 15-bit
+ 0xFFFFL,
+ };
+
+ static final long[] INT_MASKS = {
+ 0x0000000FL,
+ 0x0000007FL, // 7-bit
+ 0x000000FFL,
+ 0x00000FFFL,
+ 0x00003FFFL, // 14-bit
+ 0x00007FFFL, // 15-bit
+ 0x0000FFFFL,
+ 0x00FFFFFFL,
+ 0x7FFFFFFFL, // 31-bit
+ 0xFFFFFFFFL,
+ };
+
+ public static void main(String[] args) throws Exception {
+ for (int i = 0; i < BYTE_MASKS.length; i++) {
+ System.setProperty("value", "" + BYTE_MASKS[i]);
+ loadAndRunClass("Test5057225$loadUB2L");
+ }
+
+ for (int i = 0; i < SHORT_MASKS.length; i++) {
+ System.setProperty("value", "" + SHORT_MASKS[i]);
+ loadAndRunClass("Test5057225$loadUS2L");
+ }
+
+ for (int i = 0; i < INT_MASKS.length; i++) {
+ System.setProperty("value", "" + INT_MASKS[i]);
+ loadAndRunClass("Test5057225$loadUI2L");
+ }
+ }
+
+ static void check(long result, long expected) {
+ if (result != expected)
+ throw new InternalError(result + " != " + expected);
+ }
+
+ static void loadAndRunClass(String classname) throws Exception {
+ Class cl = Class.forName(classname);
+ URLClassLoader apploader = (URLClassLoader) cl.getClassLoader();
+ ClassLoader loader = new URLClassLoader(apploader.getURLs(), apploader.getParent());
+ Class c = loader.loadClass(classname);
+ Runnable r = (Runnable) c.newInstance();
+ r.run();
+ }
+
+ public static class loadUB2L implements Runnable {
+ static final long MASK;
+ static {
+ long value = 0;
+ try {
+ value = Long.decode(System.getProperty("value"));
+ } catch (Throwable e) {}
+ MASK = value;
+ }
+
+ public void run() { check(doload(ba), MASK); }
+ static long doload(byte[] ba) { return ba[0] & MASK; }
+ }
+
+ public static class loadUS2L implements Runnable {
+ static final long MASK;
+ static {
+ long value = 0;
+ try {
+ value = Long.decode(System.getProperty("value"));
+ } catch (Throwable e) {}
+ MASK = value;
+ }
+
+ public void run() { check(doload(sa), MASK); }
+ static long doload(short[] sa) { return sa[0] & MASK; }
+ }
+
+ public static class loadUI2L implements Runnable {
+ static final long MASK;
+ static {
+ long value = 0;
+ try {
+ value = Long.decode(System.getProperty("value"));
+ } catch (Throwable e) {}
+ MASK = value;
+ }
+
+ public void run() { check(doload(ia), MASK); }
+ static long doload(int[] ia) { return ia[0] & MASK; }
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/6837094/Test.java Wed Jul 05 16:56:36 2017 +0200
@@ -0,0 +1,94 @@
+/*
+ * 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 6837094
+ * @summary False positive for "meet not symmetric" failure
+ *
+ * @run main/othervm -Xbatch -XX:CompileOnly=Test.collectIs,Test$Factory$1.getArray,Test$Factory$2.getArray Test
+ */
+
+import java.util.Set;
+import java.util.HashSet;
+
+public class Test {
+
+ private interface Factory<M extends Interface> {
+ Factory<Child0> Zero = new Factory<Child0>() {
+ public Child0[] getArray() { return new Child0[1]; }
+ };
+
+ Factory<Child1> One = new Factory<Child1>() {
+ public Child1[] getArray() { return new Child1[1]; }
+ };
+
+ M[] getArray();
+ }
+
+ /**
+ * C2 asserts when compiling this method. Bimorphic inlining happens at
+ * getArray call site. A Phi in the catch block tries to join the meet type
+ * from he inline site (Parent[]) with the type expected by CI (Interface[]).
+ *
+ * C2 throws an assert when it doesn't need to.
+ */
+ private static <I extends Interface> void collectIs(
+ Factory<I> factory, Set<Interface> s) {
+ for (I i : factory.getArray()) {
+ try {
+ s.add(i);
+ } catch (Exception e) {
+ }
+ }
+ }
+
+ static public void main(String argv[]) {
+ Set<Interface> s = new HashSet();
+
+ for (int i = 0; i < 25000; i++) {
+ collectIs(Factory.Zero, s);
+ collectIs(Factory.One, s);
+ }
+ }
+}
+
+/**
+ * Establish necessary class hierarchy
+ */
+
+interface Interface {
+}
+
+class Parent {
+}
+
+class Child0 extends Parent implements Interface {
+}
+
+class Child1 extends Parent implements Interface {
+}
+
+class Child2 extends Parent implements Interface {
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/6849574/Test.java Wed Jul 05 16:56:36 2017 +0200
@@ -0,0 +1,44 @@
+/*
+ * 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 6849574
+ * @summary VM crash using NonBlockingHashMap (high_scale_lib)
+ *
+ * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+VerifyBeforeGC Test
+ */
+
+import java.util.concurrent.atomic.*;
+
+public class Test extends Thread {
+
+ public static void main(String[] args) {
+ AtomicReferenceArray a = new AtomicReferenceArray(10000);
+ for (int i = 0; i < 100000; i++) {
+ a.getAndSet(9999, new Object());
+ if (i > 99990) System.gc();
+ }
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/6855164/Test.java Wed Jul 05 16:56:36 2017 +0200
@@ -0,0 +1,55 @@
+/*
+ * 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 6855164
+ * @summary SIGSEGV during compilation of method involving loop over CharSequence
+ * @run main/othervm -Xbatch Test
+ */
+
+public class Test{
+ public static void main(String[] args) throws Exception {
+ StringBuffer builder = new StringBuffer();
+
+ for(int i = 0; i < 100; i++)
+ builder.append("I am the very model of a modern major general\n");
+
+ for(int j = 0; j < builder.length(); j++){
+ previousSpaceIndex(builder, j);
+ }
+ }
+
+ private static final int previousSpaceIndex(CharSequence sb, int seek) {
+ seek--;
+ while (seek > 0) {
+ if (sb.charAt(seek) == ' ') {
+ while (seek > 0 && sb.charAt(seek - 1) == ' ')
+ seek--;
+ return seek;
+ }
+ seek--;
+ }
+ return 0;
+ }
+}
--- a/jaxp/.hgtags Wed Jul 05 16:56:12 2017 +0200
+++ b/jaxp/.hgtags Wed Jul 05 16:56:36 2017 +0200
@@ -38,3 +38,4 @@
f1ac756616eaaad795f77f7f5e7f7c7bfdc9c1de jdk7-b61
a97dd57a62604c35c79bc2fa77a612ed547f6135 jdk7-b62
ae449e9c04c1fe651bd30f0f4d4cc24ba794e0c4 jdk7-b63
+a10eec7a1edf536f39b5828d8623054dbc62c2b7 jdk7-b64
--- a/jaxws/.hgtags Wed Jul 05 16:56:12 2017 +0200
+++ b/jaxws/.hgtags Wed Jul 05 16:56:36 2017 +0200
@@ -38,3 +38,4 @@
aeabf802f2a1ca72b87d7397c5ece58058e000a9 jdk7-b61
75c801c13ea1ddebc58b1a8c8da9318d72750e62 jdk7-b62
b8a6e883c0a6708f6d818815040525d472262495 jdk7-b63
+aaa25dfd3de68c6f1a1d3ef8c45fd99f76bca6dd jdk7-b64
--- a/jdk/.hgtags Wed Jul 05 16:56:12 2017 +0200
+++ b/jdk/.hgtags Wed Jul 05 16:56:36 2017 +0200
@@ -38,3 +38,4 @@
f72c0dc047b9b2e797beee68ae0b50decb1f020d jdk7-b61
12e11fab9a839a9666a996a8f9a02fd8fa03aab6 jdk7-b62
2ed6ed6b5bfc7dd724925b90dbb31223df59c25d jdk7-b63
+a50217eb3ee10b9f9547e0708e5c9625405083ef jdk7-b64
--- a/langtools/.hgtags Wed Jul 05 16:56:12 2017 +0200
+++ b/langtools/.hgtags Wed Jul 05 16:56:36 2017 +0200
@@ -38,3 +38,4 @@
522520757dd34321b27a7145ecbd24ac4fb64f34 jdk7-b61
6855e5aa3348f185fe5b443ee43a1b00ec5d390e jdk7-b62
5c2c8112055565b4980b6756e001e45eb7b88d6e jdk7-b63
+d8f23a81d46f47a4186f1044dd9e44841bbeab84 jdk7-b64