--- a/hotspot/src/cpu/aarch64/vm/c2_globals_aarch64.hpp Thu Jul 06 20:13:37 2017 +0000
+++ b/hotspot/src/cpu/aarch64/vm/c2_globals_aarch64.hpp Thu Jul 06 20:29:02 2017 +0000
@@ -50,12 +50,11 @@
define_pd_global(intx, FLOATPRESSURE, 64);
define_pd_global(intx, FreqInlineSize, 325);
define_pd_global(intx, MinJumpTableSize, 10);
-define_pd_global(intx, INTPRESSURE, 25);
+define_pd_global(intx, INTPRESSURE, 24);
define_pd_global(intx, InteriorEntryAlignment, 16);
define_pd_global(intx, NewSizeThreadIncrease, ScaleForWordSize(4*K));
define_pd_global(intx, LoopUnrollLimit, 60);
define_pd_global(intx, LoopPercentProfileLimit, 10);
-define_pd_global(intx, PostLoopMultiversioning, false);
// InitialCodeCacheSize derived from specjbb2000 run.
define_pd_global(intx, InitialCodeCacheSize, 2496*K); // Integral multiple of CodeCacheExpansionSize
define_pd_global(intx, CodeCacheExpansionSize, 64*K);
--- a/hotspot/src/cpu/arm/vm/c2_globals_arm.hpp Thu Jul 06 20:13:37 2017 +0000
+++ b/hotspot/src/cpu/arm/vm/c2_globals_arm.hpp Thu Jul 06 20:29:02 2017 +0000
@@ -70,7 +70,6 @@
define_pd_global(bool, ResizeTLAB, true);
define_pd_global(intx, LoopUnrollLimit, 60); // Design center runs on 1.3.1
define_pd_global(intx, LoopPercentProfileLimit, 10);
-define_pd_global(intx, PostLoopMultiversioning, false);
define_pd_global(intx, MinJumpTableSize, 16);
// Peephole and CISC spilling both break the graph, and so makes the
--- a/hotspot/src/cpu/ppc/vm/c2_globals_ppc.hpp Thu Jul 06 20:13:37 2017 +0000
+++ b/hotspot/src/cpu/ppc/vm/c2_globals_ppc.hpp Thu Jul 06 20:29:02 2017 +0000
@@ -55,7 +55,6 @@
define_pd_global(bool, ResizeTLAB, true);
define_pd_global(intx, LoopUnrollLimit, 60);
define_pd_global(intx, LoopPercentProfileLimit, 10);
-define_pd_global(intx, PostLoopMultiversioning, false);
// Peephole and CISC spilling both break the graph, and so make the
// scheduler sick.
--- a/hotspot/src/cpu/s390/vm/c2_globals_s390.hpp Thu Jul 06 20:13:37 2017 +0000
+++ b/hotspot/src/cpu/s390/vm/c2_globals_s390.hpp Thu Jul 06 20:29:02 2017 +0000
@@ -56,7 +56,6 @@
define_pd_global(bool, ResizeTLAB, true);
define_pd_global(intx, LoopUnrollLimit, 60);
define_pd_global(intx, LoopPercentProfileLimit, 10);
-define_pd_global(intx, PostLoopMultiversioning, false);
define_pd_global(intx, MinJumpTableSize, 18);
// Peephole and CISC spilling both break the graph, and so makes the
--- a/hotspot/src/cpu/sparc/vm/c2_globals_sparc.hpp Thu Jul 06 20:13:37 2017 +0000
+++ b/hotspot/src/cpu/sparc/vm/c2_globals_sparc.hpp Thu Jul 06 20:29:02 2017 +0000
@@ -53,7 +53,6 @@
define_pd_global(bool, ResizeTLAB, true);
define_pd_global(intx, LoopUnrollLimit, 60); // Design center runs on 1.3.1
define_pd_global(intx, LoopPercentProfileLimit, 10);
-define_pd_global(intx, PostLoopMultiversioning, false);
define_pd_global(intx, MinJumpTableSize, 5);
// Peephole and CISC spilling both break the graph, and so makes the
--- a/hotspot/src/cpu/x86/vm/c2_globals_x86.hpp Thu Jul 06 20:13:37 2017 +0000
+++ b/hotspot/src/cpu/x86/vm/c2_globals_x86.hpp Thu Jul 06 20:29:02 2017 +0000
@@ -47,7 +47,6 @@
define_pd_global(intx, FreqInlineSize, 325);
define_pd_global(intx, MinJumpTableSize, 10);
define_pd_global(intx, LoopPercentProfileLimit, 30);
-define_pd_global(intx, PostLoopMultiversioning, true);
#ifdef AMD64
define_pd_global(intx, INTPRESSURE, 13);
define_pd_global(intx, FLOATPRESSURE, 14);
--- a/hotspot/src/cpu/x86/vm/globals_x86.hpp Thu Jul 06 20:13:37 2017 +0000
+++ b/hotspot/src/cpu/x86/vm/globals_x86.hpp Thu Jul 06 20:29:02 2017 +0000
@@ -116,9 +116,10 @@
product(bool, UseStoreImmI16, true, \
"Use store immediate 16-bits value instruction on x86") \
\
- product(intx, UseAVX, 99, \
+ product(intx, UseAVX, 2, \
"Highest supported AVX instructions set on x86/x64") \
range(0, 99) \
+ constraint(UseAVXConstraintFunc, AtParse) \
\
product(bool, UseCLMUL, false, \
"Control whether CLMUL instructions can be used on x86/x64") \
--- a/hotspot/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/JVMCIVersionCheck.java Thu Jul 06 20:13:37 2017 +0000
+++ b/hotspot/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/JVMCIVersionCheck.java Thu Jul 06 20:29:02 2017 +0000
@@ -23,6 +23,7 @@
package org.graalvm.compiler.hotspot;
import java.util.Formatter;
+import java.util.Objects;
/**
* Mechanism for checking that the current Java runtime environment supports the minimum JVMCI API
@@ -37,10 +38,11 @@
class JVMCIVersionCheck {
private static final int JVMCI8_MIN_MAJOR_VERSION = 0;
- private static final int JVMCI8_MIN_MINOR_VERSION = 23;
+ private static final int JVMCI8_MIN_MINOR_VERSION = 26;
- // Will be updated once an ea build with the required JVMCI API is available.
- private static final int JVMCI9_MIN_EA_BUILD = 143;
+ // MAX_VALUE indicates that no current EA version is compatible with Graal.
+ // Note: Keep README.md in sync with the EA version support checked here.
+ private static final int JVMCI9_MIN_EA_BUILD = 176;
private static void failVersionCheck(boolean exit, String reason, Object... args) {
Formatter errorMessage = new Formatter().format(reason, args);
@@ -77,13 +79,27 @@
start += "-jvmci-".length();
int end = vmVersion.indexOf('.', start);
if (end > 0) {
- int major = Integer.parseInt(vmVersion.substring(start, end));
+ int major;
+ try {
+ major = Integer.parseInt(vmVersion.substring(start, end));
+ } catch (NumberFormatException e) {
+ failVersionCheck(exitOnFailure, "The VM does not support the minimum JVMCI API version required by Graal.%n" +
+ "Cannot read JVMCI major version from java.vm.version property: %s.%n", vmVersion);
+ return;
+ }
start = end + 1;
end = start;
while (end < vmVersion.length() && Character.isDigit(vmVersion.charAt(end))) {
end++;
}
- int minor = Integer.parseInt(vmVersion.substring(start, end));
+ int minor;
+ try {
+ minor = Integer.parseInt(vmVersion.substring(start, end));
+ } catch (NumberFormatException e) {
+ failVersionCheck(exitOnFailure, "The VM does not support the minimum JVMCI API version required by Graal.%n" +
+ "Cannot read JVMCI minor version from java.vm.version property: %s.%n", vmVersion);
+ return;
+ }
if (major >= JVMCI8_MIN_MAJOR_VERSION && minor >= JVMCI8_MIN_MINOR_VERSION) {
return;
}
@@ -96,7 +112,7 @@
"Cannot read JVMCI version from java.vm.version property: %s.%n", vmVersion);
} else {
if (vmVersion.contains("SNAPSHOT")) {
- // The snapshot of http://hg.openjdk.java.net/jdk9/hs tip is expected to work
+ // The snapshot of http://hg.openjdk.java.net/jdk9/dev tip is expected to work
return;
}
if (vmVersion.contains("internal")) {
@@ -104,23 +120,36 @@
return;
}
// http://openjdk.java.net/jeps/223
- // Only support EA builds until GA is available
- if (vmVersion.startsWith("9-ea+")) {
- int start = "9-ea+".length();
+ if (vmVersion.startsWith("9+")) {
+ int start = "9+".length();
int end = start;
end = start;
while (end < vmVersion.length() && Character.isDigit(vmVersion.charAt(end))) {
end++;
}
- int build = Integer.parseInt(vmVersion.substring(start, end));
+ int build;
+ try {
+ build = Integer.parseInt(vmVersion.substring(start, end));
+ } catch (NumberFormatException e) {
+ failVersionCheck(exitOnFailure, "The VM does not support the minimum JVMCI API version required by Graal.%n" +
+ "Cannot read JDK9 EA build number from java.vm.version property: %s.%n", vmVersion);
+ return;
+ }
if (build >= JVMCI9_MIN_EA_BUILD) {
return;
}
- failVersionCheck(exitOnFailure, "The VM is an insufficiently recent EA JDK9 build for Graal: %d < %d.%n", build, JVMCI9_MIN_EA_BUILD);
+ // Using Object.equals suppresses Eclipse's "Dead code" warning.
+ // Unfortunately @SuppressWarnings("unused") can only be applied at method level.
+ if (Objects.equals(JVMCI9_MIN_EA_BUILD, Integer.MAX_VALUE)) {
+ failVersionCheck(exitOnFailure, "This version of Graal is not compatible with any JDK 9 Early Access build.%n");
+ } else {
+ failVersionCheck(exitOnFailure, "The VM is an insufficiently recent EA JDK9 build for Graal: %d < %d.%n", build, JVMCI9_MIN_EA_BUILD);
+ }
return;
+ } else {
+ // Graal will be compatible with all JDK versions as of 9 GA
+ // until a JVMCI API change is made in a 9u or later release.
}
- failVersionCheck(exitOnFailure, "The VM does not support the minimum JVMCI API version required by Graal.%n" +
- "Cannot read JDK9 EA build number from java.vm.version property: %s.%n", vmVersion);
}
}
--- a/hotspot/src/share/vm/opto/c2_globals.hpp Thu Jul 06 20:13:37 2017 +0000
+++ b/hotspot/src/share/vm/opto/c2_globals.hpp Thu Jul 06 20:29:02 2017 +0000
@@ -181,7 +181,7 @@
"Map number of unrolls for main loop via " \
"Superword Level Parallelism analysis") \
\
- diagnostic_pd(bool, PostLoopMultiversioning, \
+ experimental(bool, PostLoopMultiversioning, false, \
"Multi versioned post loops to eliminate range checks") \
\
notproduct(bool, TraceSuperWordLoopUnrollAnalysis, false, \
--- a/hotspot/src/share/vm/runtime/commandLineFlagConstraintsCompiler.cpp Thu Jul 06 20:13:37 2017 +0000
+++ b/hotspot/src/share/vm/runtime/commandLineFlagConstraintsCompiler.cpp Thu Jul 06 20:29:02 2017 +0000
@@ -332,6 +332,17 @@
}
}
+Flag::Error UseAVXConstraintFunc(intx value, bool verbose) {
+ if (value > 2 && !UnlockExperimentalVMOptions) {
+ CommandLineError::print(verbose,
+ "UseAVX (" UINTX_FORMAT ") is experimental and must be "
+ "enabled via -XX:+UnlockExperimentalVMOptions \n", value);
+ return Flag::VIOLATES_CONSTRAINT;
+ } else {
+ return Flag::SUCCESS;
+ }
+}
+
#ifdef COMPILER2
Flag::Error InteriorEntryAlignmentConstraintFunc(intx value, bool verbose) {
if (InteriorEntryAlignment > CodeEntryAlignment) {
--- a/hotspot/src/share/vm/runtime/commandLineFlagConstraintsCompiler.hpp Thu Jul 06 20:13:37 2017 +0000
+++ b/hotspot/src/share/vm/runtime/commandLineFlagConstraintsCompiler.hpp Thu Jul 06 20:29:02 2017 +0000
@@ -64,6 +64,8 @@
Flag::Error InitArrayShortSizeConstraintFunc(intx value, bool verbose);
+Flag::Error UseAVXConstraintFunc(intx value, bool verbose);
+
#ifdef COMPILER2
Flag::Error InteriorEntryAlignmentConstraintFunc(intx value, bool verbose);
--- a/hotspot/test/compiler/rangechecks/TestRangeCheckEliminationDisabled.java Thu Jul 06 20:13:37 2017 +0000
+++ b/hotspot/test/compiler/rangechecks/TestRangeCheckEliminationDisabled.java Thu Jul 06 20:29:02 2017 +0000
@@ -26,7 +26,7 @@
* @bug 8154763
* @summary Tests PostLoopMultiversioning with RangeCheckElimination disabled.
* @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions
- * -XX:+PostLoopMultiversioning -XX:-RangeCheckElimination
+ * -XX:+UnlockExperimentalVMOptions -XX:+PostLoopMultiversioning -XX:-RangeCheckElimination
* compiler.rangechecks.TestRangeCheckEliminationDisabled
*/