# HG changeset patch # User Doug Simon # Date 1364302816 -3600 # Node ID 92571f3eeeeb92232ebd8255450166af0b3c6adb # Parent 7abc6865bdc6369f32745be93dc8813844453462 made VM independent method substitutions be interpretable diff -r 7abc6865bdc6 -r 92571f3eeeeb graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/MembarNode.java --- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/MembarNode.java Tue Mar 26 13:03:48 2013 +0100 +++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/MembarNode.java Tue Mar 26 14:00:16 2013 +0100 @@ -22,7 +22,14 @@ */ package com.oracle.graal.nodes.extended; +import static com.oracle.graal.graph.UnsafeAccess.*; + +import java.lang.reflect.*; + +import sun.misc.*; + import com.oracle.graal.api.code.*; +import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.nodes.type.*; @@ -52,6 +59,28 @@ generator.emitMembar(barriers); } + @SuppressWarnings("unused") @NodeIntrinsic - public static native void memoryBarrier(@ConstantNodeParameter int barriers); + public static void memoryBarrier(@ConstantNodeParameter int barriers) { + // Overly conservative but it doesn't matter in the interpreter + unsafe.putIntVolatile(dummyBase, dummyOffset, 0); + unsafe.getIntVolatile(dummyBase, dummyOffset); + } + + /** + * An unused field that it used to exercise barriers in the interpreter. This can be replaced + * with direct support for barriers in {@link Unsafe} if/when they become available. + */ + @SuppressWarnings("unused") private static int dummy; + private static Object dummyBase; + private static long dummyOffset; + static { + try { + Field dummyField = MembarNode.class.getDeclaredField("dummy"); + dummyBase = unsafe.staticFieldBase(dummyField); + dummyOffset = unsafe.staticFieldOffset(dummyField); + } catch (Exception e) { + throw new GraalInternalError(e); + } + } } diff -r 7abc6865bdc6 -r 92571f3eeeeb graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/UnsafeLoadNode.java --- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/UnsafeLoadNode.java Tue Mar 26 13:03:48 2013 +0100 +++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/UnsafeLoadNode.java Tue Mar 26 14:00:16 2013 +0100 @@ -22,6 +22,8 @@ */ package com.oracle.graal.nodes.extended; +import static com.oracle.graal.graph.UnsafeAccess.*; + import com.oracle.graal.api.meta.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; @@ -93,6 +95,34 @@ return this; } + @SuppressWarnings("unchecked") @NodeIntrinsic - public static native T load(Object object, @ConstantNodeParameter int displacement, long offset, @ConstantNodeParameter Kind kind); + public static T load(Object object, @ConstantNodeParameter int displacement, long offset, @ConstantNodeParameter Kind kind) { + if (kind == Kind.Boolean) { + return (T) (Boolean) unsafe.getBoolean(object, displacement + offset); + } + if (kind == Kind.Byte) { + return (T) (Byte) unsafe.getByte(object, displacement + offset); + } + if (kind == Kind.Short) { + return (T) (Short) unsafe.getShort(object, displacement + offset); + } + if (kind == Kind.Char) { + return (T) (Character) unsafe.getChar(object, displacement + offset); + } + if (kind == Kind.Int) { + return (T) (Integer) unsafe.getInt(object, displacement + offset); + } + if (kind == Kind.Float) { + return (T) (Float) unsafe.getFloat(object, displacement + offset); + } + if (kind == Kind.Long) { + return (T) (Long) unsafe.getLong(object, displacement + offset); + } + if (kind == Kind.Double) { + return (T) (Double) unsafe.getDouble(object, displacement + offset); + } + assert kind == Kind.Object; + return (T) unsafe.getObject(object, displacement + offset); + } } diff -r 7abc6865bdc6 -r 92571f3eeeeb graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/UnsafeStoreNode.java --- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/UnsafeStoreNode.java Tue Mar 26 13:03:48 2013 +0100 +++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/UnsafeStoreNode.java Tue Mar 26 14:00:16 2013 +0100 @@ -22,6 +22,8 @@ */ package com.oracle.graal.nodes.extended; +import static com.oracle.graal.graph.UnsafeAccess.*; + import com.oracle.graal.api.meta.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; @@ -119,31 +121,58 @@ } // specialized on value type until boxing/unboxing is sorted out in intrinsification - @NodeIntrinsic - public static native void store(Object object, @ConstantNodeParameter int displacement, long offset, Object value, @ConstantNodeParameter Kind kind); + @SuppressWarnings("unused") @NodeIntrinsic - public static native void store(Object object, @ConstantNodeParameter int displacement, long offset, boolean value, @ConstantNodeParameter Kind kind); + public static void store(Object object, @ConstantNodeParameter int displacement, long offset, Object value, @ConstantNodeParameter Kind kind) { + unsafe.putObject(object, offset + displacement, value); + } + + @SuppressWarnings("unused") + @NodeIntrinsic + public static void store(Object object, @ConstantNodeParameter int displacement, long offset, boolean value, @ConstantNodeParameter Kind kind) { + unsafe.putBoolean(object, offset + displacement, value); + } + @SuppressWarnings("unused") @NodeIntrinsic - public static native void store(Object object, @ConstantNodeParameter int displacement, long offset, byte value, @ConstantNodeParameter Kind kind); + public static void store(Object object, @ConstantNodeParameter int displacement, long offset, byte value, @ConstantNodeParameter Kind kind) { + unsafe.putByte(object, offset + displacement, value); + } + @SuppressWarnings("unused") @NodeIntrinsic - public static native void store(Object object, @ConstantNodeParameter int displacement, long offset, char value, @ConstantNodeParameter Kind kind); + public static void store(Object object, @ConstantNodeParameter int displacement, long offset, char value, @ConstantNodeParameter Kind kind) { + unsafe.putChar(object, offset + displacement, value); + } + @SuppressWarnings("unused") @NodeIntrinsic - public static native void store(Object object, @ConstantNodeParameter int displacement, long offset, double value, @ConstantNodeParameter Kind kind); + public static void store(Object object, @ConstantNodeParameter int displacement, long offset, double value, @ConstantNodeParameter Kind kind) { + unsafe.putDouble(object, offset + displacement, value); + } + @SuppressWarnings("unused") @NodeIntrinsic - public static native void store(Object object, @ConstantNodeParameter int displacement, long offset, float value, @ConstantNodeParameter Kind kind); - - @NodeIntrinsic - public static native void store(Object object, @ConstantNodeParameter int displacement, long offset, int value, @ConstantNodeParameter Kind kind); + public static void store(Object object, @ConstantNodeParameter int displacement, long offset, float value, @ConstantNodeParameter Kind kind) { + unsafe.putFloat(object, offset + displacement, value); + } + @SuppressWarnings("unused") @NodeIntrinsic - public static native void store(Object object, @ConstantNodeParameter int displacement, long offset, long value, @ConstantNodeParameter Kind kind); + public static void store(Object object, @ConstantNodeParameter int displacement, long offset, int value, @ConstantNodeParameter Kind kind) { + unsafe.putInt(object, offset + displacement, value); + } + @SuppressWarnings("unused") @NodeIntrinsic - public static native void store(Object object, @ConstantNodeParameter int displacement, long offset, short value, @ConstantNodeParameter Kind kind); + public static void store(Object object, @ConstantNodeParameter int displacement, long offset, long value, @ConstantNodeParameter Kind kind) { + unsafe.putLong(object, offset + displacement, value); + } + @SuppressWarnings("unused") + @NodeIntrinsic + public static void store(Object object, @ConstantNodeParameter int displacement, long offset, short value, @ConstantNodeParameter Kind kind) { + unsafe.putShort(object, offset + displacement, value); + } } diff -r 7abc6865bdc6 -r 92571f3eeeeb graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/CompareAndSwapNode.java --- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/CompareAndSwapNode.java Tue Mar 26 13:03:48 2013 +0100 +++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/CompareAndSwapNode.java Tue Mar 26 14:00:16 2013 +0100 @@ -22,6 +22,8 @@ */ package com.oracle.graal.nodes.java; +import static com.oracle.graal.graph.UnsafeAccess.*; + import com.oracle.graal.api.meta.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.extended.*; @@ -87,11 +89,17 @@ // specialized on value type until boxing/unboxing is sorted out in intrinsification @NodeIntrinsic - public static native boolean compareAndSwap(Object object, @ConstantNodeParameter int displacement, long offset, Object expected, Object newValue); + public static boolean compareAndSwap(Object object, @ConstantNodeParameter int displacement, long offset, Object expected, Object newValue) { + return unsafe.compareAndSwapObject(object, displacement + offset, expected, newValue); + } @NodeIntrinsic - public static native boolean compareAndSwap(Object object, @ConstantNodeParameter int displacement, long offset, long expected, long newValue); + public static boolean compareAndSwap(Object object, @ConstantNodeParameter int displacement, long offset, long expected, long newValue) { + return unsafe.compareAndSwapLong(object, displacement + offset, expected, newValue); + } @NodeIntrinsic - public static native boolean compareAndSwap(Object object, @ConstantNodeParameter int displacement, long offset, int expected, int newValue); + public static boolean compareAndSwap(Object object, @ConstantNodeParameter int displacement, long offset, int expected, int newValue) { + return unsafe.compareAndSwapInt(object, displacement + offset, expected, newValue); + } } diff -r 7abc6865bdc6 -r 92571f3eeeeb graal/com.oracle.graal.replacements.test/src/com/oracle/graal/replacements/MethodSubstitutionTest.java --- a/graal/com.oracle.graal.replacements.test/src/com/oracle/graal/replacements/MethodSubstitutionTest.java Tue Mar 26 13:03:48 2013 +0100 +++ b/graal/com.oracle.graal.replacements.test/src/com/oracle/graal/replacements/MethodSubstitutionTest.java Tue Mar 26 14:00:16 2013 +0100 @@ -26,296 +26,21 @@ import java.util.concurrent.*; -import org.junit.*; - -import sun.misc.*; - import com.oracle.graal.api.code.*; import com.oracle.graal.api.replacements.*; import com.oracle.graal.compiler.test.*; import com.oracle.graal.debug.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; -import com.oracle.graal.nodes.calc.*; import com.oracle.graal.phases.*; import com.oracle.graal.phases.common.*; -import com.oracle.graal.replacements.nodes.*; /** * Tests if {@link MethodSubstitution}s are inlined correctly. Most test cases only assert that * there are no remaining invocations in the graph. This is sufficient if the method that is being * substituted is a native method. For Java methods, additional checks are necessary. */ -public class MethodSubstitutionTest extends GraalCompilerTest { - - @Test - public void testUnsafeSubstitutions() { - test("unsafeCompareAndSwapInt"); - test("unsafeCompareAndSwapLong"); - test("unsafeCompareAndSwapObject"); - - test("unsafeGetBoolean"); - test("unsafeGetByte"); - test("unsafeGetShort"); - test("unsafeGetChar"); - test("unsafeGetInt"); - test("unsafeGetFloat"); - test("unsafeGetDouble"); - test("unsafeGetObject"); - - test("unsafePutBoolean"); - test("unsafePutByte"); - test("unsafePutShort"); - test("unsafePutChar"); - test("unsafePutInt"); - test("unsafePutFloat"); - test("unsafePutDouble"); - test("unsafePutObject"); - - test("unsafeDirectMemoryRead"); - test("unsafeDirectMemoryWrite"); - } - - @SuppressWarnings("all") - public static boolean unsafeCompareAndSwapInt(Unsafe unsafe, Object obj, long offset) { - return unsafe.compareAndSwapInt(obj, offset, 0, 1); - } - - @SuppressWarnings("all") - public static boolean unsafeCompareAndSwapLong(Unsafe unsafe, Object obj, long offset) { - return unsafe.compareAndSwapLong(obj, offset, 0, 1); - } - - @SuppressWarnings("all") - public static boolean unsafeCompareAndSwapObject(Unsafe unsafe, Object obj, long offset) { - return unsafe.compareAndSwapObject(obj, offset, null, new Object()); - } - - @SuppressWarnings("all") - public static boolean unsafeGetBoolean(Unsafe unsafe, Object obj, long offset) { - return unsafe.getBoolean(obj, offset) && unsafe.getBooleanVolatile(obj, offset); - } - - @SuppressWarnings("all") - public static int unsafeGetByte(Unsafe unsafe, Object obj, long offset) { - return unsafe.getByte(obj, offset) + unsafe.getByteVolatile(obj, offset); - } - - @SuppressWarnings("all") - public static int unsafeGetShort(Unsafe unsafe, Object obj, long offset) { - return unsafe.getShort(obj, offset) + unsafe.getShortVolatile(obj, offset); - } - - @SuppressWarnings("all") - public static int unsafeGetChar(Unsafe unsafe, Object obj, long offset) { - return unsafe.getChar(obj, offset) + unsafe.getCharVolatile(obj, offset); - } - - @SuppressWarnings("all") - public static int unsafeGetInt(Unsafe unsafe, Object obj, long offset) { - return unsafe.getInt(obj, offset) + unsafe.getIntVolatile(obj, offset); - } - - @SuppressWarnings("all") - public static long unsafeGetLong(Unsafe unsafe, Object obj, long offset) { - return unsafe.getLong(obj, offset) + unsafe.getLongVolatile(obj, offset); - } - - @SuppressWarnings("all") - public static float unsafeGetFloat(Unsafe unsafe, Object obj, long offset) { - return unsafe.getFloat(obj, offset) + unsafe.getFloatVolatile(obj, offset); - } - - @SuppressWarnings("all") - public static double unsafeGetDouble(Unsafe unsafe, Object obj, long offset) { - return unsafe.getDouble(obj, offset) + unsafe.getDoubleVolatile(obj, offset); - } - - @SuppressWarnings("all") - public static boolean unsafeGetObject(Unsafe unsafe, Object obj, long offset) { - return unsafe.getObject(obj, offset) == unsafe.getObjectVolatile(obj, offset); - } - - @SuppressWarnings("all") - public static void unsafePutBoolean(Unsafe unsafe, Object obj, long offset, boolean value) { - unsafe.putBoolean(obj, offset, value); - unsafe.putBooleanVolatile(obj, offset, value); - } - - @SuppressWarnings("all") - public static void unsafePutByte(Unsafe unsafe, Object obj, long offset, byte value) { - unsafe.putByte(obj, offset, value); - unsafe.putByteVolatile(obj, offset, value); - } - - @SuppressWarnings("all") - public static void unsafePutShort(Unsafe unsafe, Object obj, long offset, short value) { - unsafe.putShort(obj, offset, value); - unsafe.putShortVolatile(obj, offset, value); - } - - @SuppressWarnings("all") - public static void unsafePutChar(Unsafe unsafe, Object obj, long offset, char value) { - unsafe.putChar(obj, offset, value); - unsafe.putCharVolatile(obj, offset, value); - } - - @SuppressWarnings("all") - public static void unsafePutInt(Unsafe unsafe, Object obj, long offset, int value) { - unsafe.putInt(obj, offset, value); - unsafe.putIntVolatile(obj, offset, value); - unsafe.putOrderedInt(obj, offset, value); - } - - @SuppressWarnings("all") - public static void unsafePutLong(Unsafe unsafe, Object obj, long offset, long value) { - unsafe.putLong(obj, offset, value); - unsafe.putLongVolatile(obj, offset, value); - unsafe.putOrderedLong(obj, offset, value); - } - - @SuppressWarnings("all") - public static void unsafePutFloat(Unsafe unsafe, Object obj, long offset, float value) { - unsafe.putFloat(obj, offset, value); - unsafe.putFloatVolatile(obj, offset, value); - } - - @SuppressWarnings("all") - public static void unsafePutDouble(Unsafe unsafe, Object obj, long offset, double value) { - unsafe.putDouble(obj, offset, value); - unsafe.putDoubleVolatile(obj, offset, value); - } - - @SuppressWarnings("all") - public static void unsafePutObject(Unsafe unsafe, Object obj, long offset, Object value) { - unsafe.putObject(obj, offset, value); - unsafe.putObjectVolatile(obj, offset, value); - unsafe.putOrderedObject(obj, offset, value); - } - - @SuppressWarnings("all") - public static double unsafeDirectMemoryRead(Unsafe unsafe, long address) { - // Unsafe.getBoolean(long) and Unsafe.getObject(long) do not exist - return unsafe.getByte(address) + unsafe.getShort(address) + unsafe.getChar(address) + unsafe.getInt(address) + unsafe.getLong(address) + unsafe.getFloat(address) + unsafe.getDouble(address); - } - - @SuppressWarnings("all") - public static void unsafeDirectMemoryWrite(Unsafe unsafe, long address, byte value) { - // Unsafe.putBoolean(long) and Unsafe.putObject(long) do not exist - unsafe.putByte(address, value); - unsafe.putShort(address, value); - unsafe.putChar(address, (char) value); - unsafe.putInt(address, value); - unsafe.putLong(address, value); - unsafe.putFloat(address, value); - unsafe.putDouble(address, value); - } - - @Test - public void testMathSubstitutions() { - assertInGraph(assertNotInGraph(test("mathAbs"), IfNode.class), MathIntrinsicNode.class); // Java - test("math"); - } - - @SuppressWarnings("all") - public static double mathAbs(double value) { - return Math.abs(value); - } - - @SuppressWarnings("all") - public static double math(double value) { - return Math.sqrt(value) + Math.log(value) + Math.log10(value) + Math.sin(value) + Math.cos(value) + Math.tan(value); - // Math.exp(value) + - // Math.pow(value, 13); - } - - @Test - public void testIntegerSubstitutions() { - assertInGraph(test("integerReverseBytes"), ReverseBytesNode.class); // Java - assertInGraph(test("integerNumberOfLeadingZeros"), BitScanReverseNode.class); // Java - assertInGraph(test("integerNumberOfTrailingZeros"), BitScanForwardNode.class); // Java - assertInGraph(test("integerBitCount"), BitCountNode.class); // Java - } - - @SuppressWarnings("all") - public static int integerReverseBytes(int value) { - return Integer.reverseBytes(value); - } - - @SuppressWarnings("all") - public static int integerNumberOfLeadingZeros(int value) { - return Integer.numberOfLeadingZeros(value); - } - - @SuppressWarnings("all") - public static int integerNumberOfTrailingZeros(int value) { - return Integer.numberOfTrailingZeros(value); - } - - @SuppressWarnings("all") - public static int integerBitCount(int value) { - return Integer.bitCount(value); - } - - @Test - public void testLongSubstitutions() { - assertInGraph(test("longReverseBytes"), ReverseBytesNode.class); // Java - assertInGraph(test("longNumberOfLeadingZeros"), BitScanReverseNode.class); // Java - assertInGraph(test("longNumberOfTrailingZeros"), BitScanForwardNode.class); // Java - assertInGraph(test("longBitCount"), BitCountNode.class); // Java - } - - @SuppressWarnings("all") - public static long longReverseBytes(long value) { - return Long.reverseBytes(value); - } - - @SuppressWarnings("all") - public static long longNumberOfLeadingZeros(long value) { - return Long.numberOfLeadingZeros(value); - } - - @SuppressWarnings("all") - public static long longNumberOfTrailingZeros(long value) { - return Long.numberOfTrailingZeros(value); - } - - @SuppressWarnings("all") - public static int longBitCount(long value) { - return Long.bitCount(value); - } - - @Test - public void testFloatSubstitutions() { - assertInGraph(test("floatToIntBits"), ConvertNode.class); // Java - test("intBitsToFloat"); - } - - @SuppressWarnings("all") - public static int floatToIntBits(float value) { - return Float.floatToIntBits(value); - } - - @SuppressWarnings("all") - public static float intBitsToFloat(int value) { - return Float.intBitsToFloat(value); - } - - @Test - public void testDoubleSubstitutions() { - assertInGraph(test("doubleToLongBits"), ConvertNode.class); // Java - test("longBitsToDouble"); - } - - @SuppressWarnings("all") - public static long doubleToLongBits(double value) { - return Double.doubleToLongBits(value); - } - - @SuppressWarnings("all") - public static double longBitsToDouble(long value) { - return Double.longBitsToDouble(value); - } +public abstract class MethodSubstitutionTest extends GraalCompilerTest { protected StructuredGraph test(final String snippet) { return Debug.scope("MethodSubstitutionTest", runtime.lookupJavaMethod(getMethod(snippet)), new Callable() { diff -r 7abc6865bdc6 -r 92571f3eeeeb graal/com.oracle.graal.replacements.test/src/com/oracle/graal/replacements/StandardMethodSubstitutionsTest.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.graal.replacements.test/src/com/oracle/graal/replacements/StandardMethodSubstitutionsTest.java Tue Mar 26 14:00:16 2013 +0100 @@ -0,0 +1,453 @@ +/* + * Copyright (c) 2012, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package com.oracle.graal.replacements; + +import static com.oracle.graal.graph.UnsafeAccess.*; +import static com.oracle.graal.replacements.UnsafeSubstitutions.*; + +import java.lang.reflect.*; +import java.util.concurrent.atomic.*; + +import org.junit.*; + +import sun.misc.*; + +import com.oracle.graal.api.replacements.*; +import com.oracle.graal.nodes.*; +import com.oracle.graal.nodes.calc.*; +import com.oracle.graal.replacements.nodes.*; + +/** + * Tests the VM independent {@link MethodSubstitution}s. + */ +public class StandardMethodSubstitutionsTest extends MethodSubstitutionTest { + + static long off(Object o, String name) { + try { + return unsafe.objectFieldOffset(o.getClass().getDeclaredField(name)); + } catch (Exception e) { + Assert.fail(e.toString()); + return 0L; + } + } + + static class Foo { + + boolean z; + byte b; + short s; + char c; + int i; + long l; + float f; + double d; + Object o; + + void testGet(Field field, long offset, String getName, Object value) throws Exception { + field.set(this, value); + Method m1 = Unsafe.class.getDeclaredMethod(getName, Object.class, long.class); + Method m2 = UnsafeSubstitutions.class.getDeclaredMethod(getName, Object.class, Object.class, long.class); + Object expected = m1.invoke(unsafe, this, offset); + Object actual = m2.invoke(null, unsafe, this, offset); + Assert.assertEquals(expected, actual); + } + + void testDirect(Field field, long offset, String type, Object value) throws Exception { + if (type.equals("Boolean") || type.equals("Object")) { + // No direct memory access for these types + return; + } + + long address = unsafe.allocateMemory(offset + 16); + + String getName = "get" + type; + String putName = "put" + type; + Method m1 = Unsafe.class.getDeclaredMethod(putName, long.class, field.getType()); + Method m2 = Unsafe.class.getDeclaredMethod(getName, long.class); + + Method m3 = UnsafeSubstitutions.class.getDeclaredMethod(putName, Object.class, long.class, field.getType()); + Method m4 = UnsafeSubstitutions.class.getDeclaredMethod(getName, Object.class, long.class); + + m1.invoke(unsafe, address + offset, value); + Object expected = m2.invoke(unsafe, address + offset); + + m3.invoke(null, unsafe, address + offset, value); + Object actual = m4.invoke(null, unsafe, address + offset); + + unsafe.freeMemory(address); + Assert.assertEquals(expected, actual); + } + + void testPut(Field field, long offset, String putName, Object value) throws Exception { + Object initialValue = field.get(new Foo()); + field.set(this, initialValue); + + try { + Method m1 = Unsafe.class.getDeclaredMethod(putName, Object.class, long.class, field.getType()); + Method m2 = UnsafeSubstitutions.class.getDeclaredMethod(putName, Object.class, Object.class, long.class, field.getType()); + m1.invoke(unsafe, this, offset, value); + Object expected = field.get(this); + m2.invoke(null, unsafe, this, offset, value); + Object actual = field.get(this); + Assert.assertEquals(expected, actual); + } catch (NoSuchMethodException e) { + if (!putName.startsWith("putOrdered")) { + throw e; + } + } + } + + void test(String fieldName, String typeSuffix, Object value) { + try { + Field field = Foo.class.getDeclaredField(fieldName); + long offset = unsafe.objectFieldOffset(field); + testGet(field, offset, "get" + typeSuffix, value); + testGet(field, offset, "get" + typeSuffix + "Volatile", value); + testPut(field, offset, "put" + typeSuffix, value); + testPut(field, offset, "put" + typeSuffix + "Volatile", value); + testPut(field, offset, "putOrdered" + typeSuffix, value); + testDirect(field, offset, typeSuffix, value); + } catch (Exception e) { + throw new AssertionError(e); + } + } + } + + @Test + public void testUnsafeSubstitutions() throws Exception { + test("unsafeCompareAndSwapInt"); + test("unsafeCompareAndSwapLong"); + test("unsafeCompareAndSwapObject"); + + test("unsafeGetBoolean"); + test("unsafeGetByte"); + test("unsafeGetShort"); + test("unsafeGetChar"); + test("unsafeGetInt"); + test("unsafeGetLong"); + test("unsafeGetFloat"); + test("unsafeGetDouble"); + test("unsafeGetObject"); + + test("unsafePutBoolean"); + test("unsafePutByte"); + test("unsafePutShort"); + test("unsafePutChar"); + test("unsafePutInt"); + test("unsafePutFloat"); + test("unsafePutDouble"); + test("unsafePutObject"); + + test("unsafeDirectMemoryRead"); + test("unsafeDirectMemoryWrite"); + + AtomicInteger a1 = new AtomicInteger(42); + AtomicInteger a2 = new AtomicInteger(42); + assertEquals(unsafe.compareAndSwapInt(a1, off(a1, "value"), 42, 53), compareAndSwapInt(unsafe, a2, off(a2, "value"), 42, 53)); + assertEquals(a1.get(), a2.get()); + + AtomicLong l1 = new AtomicLong(42); + AtomicLong l2 = new AtomicLong(42); + assertEquals(unsafe.compareAndSwapLong(l1, off(l1, "value"), 42, 53), compareAndSwapLong(unsafe, l2, off(l2, "value"), 42, 53)); + assertEquals(l1.get(), l2.get()); + + AtomicReference o1 = new AtomicReference<>("42"); + AtomicReference o2 = new AtomicReference<>("42"); + assertEquals(unsafe.compareAndSwapObject(o1, off(o1, "value"), "42", "53"), compareAndSwapObject(unsafe, o2, off(o2, "value"), "42", "53")); + assertEquals(o1.get(), o2.get()); + + Foo f1 = new Foo(); + f1.test("z", "Boolean", Boolean.TRUE); + f1.test("b", "Byte", Byte.MIN_VALUE); + f1.test("s", "Short", Short.MAX_VALUE); + f1.test("c", "Char", '!'); + f1.test("i", "Int", 1010010); + f1.test("f", "Float", -34.5F); + f1.test("l", "Long", 99999L); + f1.test("d", "Double", 1234.5678D); + f1.test("o", "Object", "object"); + } + + @SuppressWarnings("all") + public static boolean unsafeCompareAndSwapInt(Unsafe unsafe, Object obj, long offset) { + return unsafe.compareAndSwapInt(obj, offset, 0, 1); + } + + @SuppressWarnings("all") + public static boolean unsafeCompareAndSwapLong(Unsafe unsafe, Object obj, long offset) { + return unsafe.compareAndSwapLong(obj, offset, 0, 1); + } + + @SuppressWarnings("all") + public static boolean unsafeCompareAndSwapObject(Unsafe unsafe, Object obj, long offset) { + return unsafe.compareAndSwapObject(obj, offset, null, new Object()); + } + + @SuppressWarnings("all") + public static boolean unsafeGetBoolean(Unsafe unsafe, Object obj, long offset) { + return unsafe.getBoolean(obj, offset) && unsafe.getBooleanVolatile(obj, offset); + } + + @SuppressWarnings("all") + public static int unsafeGetByte(Unsafe unsafe, Object obj, long offset) { + return unsafe.getByte(obj, offset) + unsafe.getByteVolatile(obj, offset); + } + + @SuppressWarnings("all") + public static int unsafeGetShort(Unsafe unsafe, Object obj, long offset) { + return unsafe.getShort(obj, offset) + unsafe.getShortVolatile(obj, offset); + } + + @SuppressWarnings("all") + public static int unsafeGetChar(Unsafe unsafe, Object obj, long offset) { + return unsafe.getChar(obj, offset) + unsafe.getCharVolatile(obj, offset); + } + + @SuppressWarnings("all") + public static int unsafeGetInt(Unsafe unsafe, Object obj, long offset) { + return unsafe.getInt(obj, offset) + unsafe.getIntVolatile(obj, offset); + } + + @SuppressWarnings("all") + public static long unsafeGetLong(Unsafe unsafe, Object obj, long offset) { + return unsafe.getLong(obj, offset) + unsafe.getLongVolatile(obj, offset); + } + + @SuppressWarnings("all") + public static float unsafeGetFloat(Unsafe unsafe, Object obj, long offset) { + return unsafe.getFloat(obj, offset) + unsafe.getFloatVolatile(obj, offset); + } + + @SuppressWarnings("all") + public static double unsafeGetDouble(Unsafe unsafe, Object obj, long offset) { + return unsafe.getDouble(obj, offset) + unsafe.getDoubleVolatile(obj, offset); + } + + @SuppressWarnings("all") + public static boolean unsafeGetObject(Unsafe unsafe, Object obj, long offset) { + return unsafe.getObject(obj, offset) == unsafe.getObjectVolatile(obj, offset); + } + + @SuppressWarnings("all") + public static void unsafePutBoolean(Unsafe unsafe, Object obj, long offset, boolean value) { + unsafe.putBoolean(obj, offset, value); + unsafe.putBooleanVolatile(obj, offset, value); + } + + @SuppressWarnings("all") + public static void unsafePutByte(Unsafe unsafe, Object obj, long offset, byte value) { + unsafe.putByte(obj, offset, value); + unsafe.putByteVolatile(obj, offset, value); + } + + @SuppressWarnings("all") + public static void unsafePutShort(Unsafe unsafe, Object obj, long offset, short value) { + unsafe.putShort(obj, offset, value); + unsafe.putShortVolatile(obj, offset, value); + } + + @SuppressWarnings("all") + public static void unsafePutChar(Unsafe unsafe, Object obj, long offset, char value) { + unsafe.putChar(obj, offset, value); + unsafe.putCharVolatile(obj, offset, value); + } + + @SuppressWarnings("all") + public static void unsafePutInt(Unsafe unsafe, Object obj, long offset, int value) { + unsafe.putInt(obj, offset, value); + unsafe.putIntVolatile(obj, offset, value); + unsafe.putOrderedInt(obj, offset, value); + } + + @SuppressWarnings("all") + public static void unsafePutLong(Unsafe unsafe, Object obj, long offset, long value) { + unsafe.putLong(obj, offset, value); + unsafe.putLongVolatile(obj, offset, value); + unsafe.putOrderedLong(obj, offset, value); + } + + @SuppressWarnings("all") + public static void unsafePutFloat(Unsafe unsafe, Object obj, long offset, float value) { + unsafe.putFloat(obj, offset, value); + unsafe.putFloatVolatile(obj, offset, value); + } + + @SuppressWarnings("all") + public static void unsafePutDouble(Unsafe unsafe, Object obj, long offset, double value) { + unsafe.putDouble(obj, offset, value); + unsafe.putDoubleVolatile(obj, offset, value); + } + + @SuppressWarnings("all") + public static void unsafePutObject(Unsafe unsafe, Object obj, long offset, Object value) { + unsafe.putObject(obj, offset, value); + unsafe.putObjectVolatile(obj, offset, value); + unsafe.putOrderedObject(obj, offset, value); + } + + @SuppressWarnings("all") + public static double unsafeDirectMemoryRead(Unsafe unsafe, long address) { + // Unsafe.getBoolean(long) and Unsafe.getObject(long) do not exist + return unsafe.getByte(address) + unsafe.getShort(address) + unsafe.getChar(address) + unsafe.getInt(address) + unsafe.getLong(address) + unsafe.getFloat(address) + unsafe.getDouble(address); + } + + @SuppressWarnings("all") + public static void unsafeDirectMemoryWrite(Unsafe unsafe, long address, byte value) { + // Unsafe.putBoolean(long) and Unsafe.putObject(long) do not exist + unsafe.putByte(address, value); + unsafe.putShort(address, value); + unsafe.putChar(address, (char) value); + unsafe.putInt(address, value); + unsafe.putLong(address, value); + unsafe.putFloat(address, value); + unsafe.putDouble(address, value); + } + + @Test + public void testMathSubstitutions() { + assertInGraph(assertNotInGraph(test("mathAbs"), IfNode.class), MathIntrinsicNode.class); // Java + test("math"); + + double value = 34567.891D; + assertEquals(Math.sqrt(value), MathSubstitutionsX86.sqrt(value)); + assertEquals(Math.log(value), MathSubstitutionsX86.log(value)); + assertEquals(Math.log10(value), MathSubstitutionsX86.log10(value)); + assertEquals(Math.sin(value), MathSubstitutionsX86.sin(value)); + assertEquals(Math.cos(value), MathSubstitutionsX86.cos(value)); + assertEquals(Math.tan(value), MathSubstitutionsX86.tan(value)); + } + + @SuppressWarnings("all") + public static double mathAbs(double value) { + return Math.abs(value); + } + + @SuppressWarnings("all") + public static double math(double value) { + return Math.sqrt(value) + Math.log(value) + Math.log10(value) + Math.sin(value) + Math.cos(value) + Math.tan(value); + // Math.exp(value) + + // Math.pow(value, 13); + } + + @Test + public void testIntegerSubstitutions() { + assertInGraph(test("integerReverseBytes"), ReverseBytesNode.class); // Java + assertInGraph(test("integerNumberOfLeadingZeros"), BitScanReverseNode.class); // Java + assertInGraph(test("integerNumberOfTrailingZeros"), BitScanForwardNode.class); // Java + assertInGraph(test("integerBitCount"), BitCountNode.class); // Java + + for (int i : new int[]{Integer.MIN_VALUE, -1, 0, 1, Integer.MAX_VALUE}) { + assertEquals(Integer.reverseBytes(i), IntegerSubstitutions.reverseBytes(i)); + assertEquals(Integer.numberOfLeadingZeros(i), IntegerSubstitutions.numberOfLeadingZeros(i)); + assertEquals(Integer.numberOfTrailingZeros(i), IntegerSubstitutions.numberOfTrailingZeros(i)); + assertEquals(Integer.bitCount(i), IntegerSubstitutions.bitCount(i)); + } + } + + @SuppressWarnings("all") + public static int integerReverseBytes(int value) { + return Integer.reverseBytes(value); + } + + @SuppressWarnings("all") + public static int integerNumberOfLeadingZeros(int value) { + return Integer.numberOfLeadingZeros(value); + } + + @SuppressWarnings("all") + public static int integerNumberOfTrailingZeros(int value) { + return Integer.numberOfTrailingZeros(value); + } + + @SuppressWarnings("all") + public static int integerBitCount(int value) { + return Integer.bitCount(value); + } + + @Test + public void testLongSubstitutions() { + assertInGraph(test("longReverseBytes"), ReverseBytesNode.class); // Java + assertInGraph(test("longNumberOfLeadingZeros"), BitScanReverseNode.class); // Java + assertInGraph(test("longNumberOfTrailingZeros"), BitScanForwardNode.class); // Java + assertInGraph(test("longBitCount"), BitCountNode.class); // Java + + for (long l : new long[]{Long.MIN_VALUE, -1L, 0L, 1L, Long.MAX_VALUE}) { + assertEquals(Long.reverseBytes(l), LongSubstitutions.reverseBytes(l)); + assertEquals(Long.numberOfLeadingZeros(l), LongSubstitutions.numberOfLeadingZeros(l)); + assertEquals(Long.numberOfTrailingZeros(l), LongSubstitutions.numberOfTrailingZeros(l)); + assertEquals(Long.bitCount(l), LongSubstitutions.bitCount(l)); + } + } + + @SuppressWarnings("all") + public static long longReverseBytes(long value) { + return Long.reverseBytes(value); + } + + @SuppressWarnings("all") + public static long longNumberOfLeadingZeros(long value) { + return Long.numberOfLeadingZeros(value); + } + + @SuppressWarnings("all") + public static long longNumberOfTrailingZeros(long value) { + return Long.numberOfTrailingZeros(value); + } + + @SuppressWarnings("all") + public static int longBitCount(long value) { + return Long.bitCount(value); + } + + @Test + public void testFloatSubstitutions() { + assertInGraph(test("floatToIntBits"), ConvertNode.class); // Java + test("intBitsToFloat"); + } + + @SuppressWarnings("all") + public static int floatToIntBits(float value) { + return Float.floatToIntBits(value); + } + + @SuppressWarnings("all") + public static float intBitsToFloat(int value) { + return Float.intBitsToFloat(value); + } + + @Test + public void testDoubleSubstitutions() { + assertInGraph(test("doubleToLongBits"), ConvertNode.class); // Java + test("longBitsToDouble"); + } + + @SuppressWarnings("all") + public static long doubleToLongBits(double value) { + return Double.doubleToLongBits(value); + } + + @SuppressWarnings("all") + public static double longBitsToDouble(long value) { + return Double.longBitsToDouble(value); + } +} diff -r 7abc6865bdc6 -r 92571f3eeeeb graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/MathSubstitutionsX86.java --- a/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/MathSubstitutionsX86.java Tue Mar 26 13:03:48 2013 +0100 +++ b/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/MathSubstitutionsX86.java Tue Mar 26 14:00:16 2013 +0100 @@ -28,7 +28,7 @@ import com.oracle.graal.graph.Node.NodeIntrinsic; import com.oracle.graal.nodes.extended.*; import com.oracle.graal.replacements.nodes.*; -import com.oracle.graal.replacements.nodes.MathIntrinsicNode.*; +import com.oracle.graal.replacements.nodes.MathIntrinsicNode.Operation; /** * Substitutions for {@link java.lang.Math} methods. @@ -96,5 +96,14 @@ public static final Descriptor ARITHMETIC_TAN = new Descriptor("arithmeticTan", false, double.class, double.class); @NodeIntrinsic(value = RuntimeCallNode.class, setStampFromReturnType = true) - public static native double callDouble(@ConstantNodeParameter Descriptor descriptor, double value); + public static double callDouble(@ConstantNodeParameter Descriptor descriptor, double value) { + if (descriptor == ARITHMETIC_SIN) { + return Math.sin(value); + } + if (descriptor == ARITHMETIC_COS) { + return Math.cos(value); + } + assert descriptor == ARITHMETIC_TAN; + return Math.tan(value); + } } diff -r 7abc6865bdc6 -r 92571f3eeeeb graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/BitCountNode.java --- a/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/BitCountNode.java Tue Mar 26 13:03:48 2013 +0100 +++ b/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/BitCountNode.java Tue Mar 26 14:00:16 2013 +0100 @@ -54,10 +54,14 @@ } @NodeIntrinsic - public static native int bitCount(int v); + public static int bitCount(int v) { + return Integer.bitCount(v); + } @NodeIntrinsic - public static native int bitCount(long v); + public static int bitCount(long v) { + return Long.bitCount(v); + } @Override public void generate(LIRGenerator gen) { diff -r 7abc6865bdc6 -r 92571f3eeeeb graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/BitScanForwardNode.java --- a/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/BitScanForwardNode.java Tue Mar 26 13:03:48 2013 +0100 +++ b/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/BitScanForwardNode.java Tue Mar 26 14:00:16 2013 +0100 @@ -54,7 +54,16 @@ } @NodeIntrinsic - public static native int scan(long v); + public static int scan(long v) { + if (v == 0) { + return -1; + } + int index = 0; + while (((1L << index) & v) == 0) { + ++index; + } + return index; + } @Override public void generate(LIRGenerator gen) { diff -r 7abc6865bdc6 -r 92571f3eeeeb graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/BitScanReverseNode.java --- a/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/BitScanReverseNode.java Tue Mar 26 13:03:48 2013 +0100 +++ b/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/BitScanReverseNode.java Tue Mar 26 14:00:16 2013 +0100 @@ -54,10 +54,28 @@ } @NodeIntrinsic - public static native int scan(int v); + public static int scan(int v) { + if (v == 0) { + return -1; + } + int index = 31; + while (((1 << index) & v) == 0) { + --index; + } + return index; + } @NodeIntrinsic - public static native int scan(long v); + public static int scan(long v) { + if (v == 0) { + return -1; + } + int index = 63; + while (((1L << index) & v) == 0) { + --index; + } + return index; + } @Override public void generate(LIRGenerator gen) { diff -r 7abc6865bdc6 -r 92571f3eeeeb graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/DirectReadNode.java --- a/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/DirectReadNode.java Tue Mar 26 13:03:48 2013 +0100 +++ b/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/DirectReadNode.java Tue Mar 26 14:00:16 2013 +0100 @@ -22,6 +22,8 @@ */ package com.oracle.graal.replacements.nodes; +import static com.oracle.graal.graph.UnsafeAccess.*; + import com.oracle.graal.api.meta.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.extended.*; @@ -48,6 +50,31 @@ gen.setResult(this, gen.emitLoad(readKind, gen.operand(address), 0, Value.ILLEGAL, 0, false)); } + @SuppressWarnings("unchecked") @NodeIntrinsic - public static native T read(long address, @ConstantNodeParameter Kind kind); + public static T read(long address, @ConstantNodeParameter Kind kind) { + if (kind == Kind.Boolean) { + return (T) Boolean.valueOf(unsafe.getByte(address) != 0); + } + if (kind == Kind.Byte) { + return (T) (Byte) unsafe.getByte(address); + } + if (kind == Kind.Short) { + return (T) (Short) unsafe.getShort(address); + } + if (kind == Kind.Char) { + return (T) (Character) unsafe.getChar(address); + } + if (kind == Kind.Int) { + return (T) (Integer) unsafe.getInt(address); + } + if (kind == Kind.Float) { + return (T) (Float) unsafe.getFloat(address); + } + if (kind == Kind.Long) { + return (T) (Long) unsafe.getLong(address); + } + assert kind == Kind.Double; + return (T) (Double) unsafe.getDouble(address); + } } diff -r 7abc6865bdc6 -r 92571f3eeeeb graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/DirectStoreNode.java --- a/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/DirectStoreNode.java Tue Mar 26 13:03:48 2013 +0100 +++ b/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/DirectStoreNode.java Tue Mar 26 14:00:16 2013 +0100 @@ -22,6 +22,8 @@ */ package com.oracle.graal.replacements.nodes; +import static com.oracle.graal.graph.UnsafeAccess.*; + import com.oracle.graal.api.meta.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.extended.*; @@ -57,27 +59,52 @@ * are used). */ + @SuppressWarnings("unused") @NodeIntrinsic - public static native void store(long address, boolean value, @ConstantNodeParameter Kind kind); - - @NodeIntrinsic - public static native void store(long address, byte value, @ConstantNodeParameter Kind kind); + public static void store(long address, boolean value, @ConstantNodeParameter Kind kind) { + int b = value ? 1 : 0; + unsafe.putByte(address, (byte) b); + } + @SuppressWarnings("unused") @NodeIntrinsic - public static native void store(long address, short value, @ConstantNodeParameter Kind kind); + public static void store(long address, byte value, @ConstantNodeParameter Kind kind) { + unsafe.putByte(address, value); + } + @SuppressWarnings("unused") @NodeIntrinsic - public static native void store(long address, char value, @ConstantNodeParameter Kind kind); + public static void store(long address, short value, @ConstantNodeParameter Kind kind) { + unsafe.putShort(address, value); + } + + @SuppressWarnings("unused") + @NodeIntrinsic + public static void store(long address, char value, @ConstantNodeParameter Kind kind) { + unsafe.putChar(address, value); + } + @SuppressWarnings("unused") @NodeIntrinsic - public static native void store(long address, int value, @ConstantNodeParameter Kind kind); + public static void store(long address, int value, @ConstantNodeParameter Kind kind) { + unsafe.putInt(address, value); + } + @SuppressWarnings("unused") @NodeIntrinsic - public static native void store(long address, long value, @ConstantNodeParameter Kind kind); + public static void store(long address, long value, @ConstantNodeParameter Kind kind) { + unsafe.putLong(address, value); + } + @SuppressWarnings("unused") @NodeIntrinsic - public static native void store(long address, float value, @ConstantNodeParameter Kind kind); + public static void store(long address, float value, @ConstantNodeParameter Kind kind) { + unsafe.putFloat(address, value); + } + @SuppressWarnings("unused") @NodeIntrinsic - public static native void store(long address, double value, @ConstantNodeParameter Kind kind); + public static void store(long address, double value, @ConstantNodeParameter Kind kind) { + unsafe.putDouble(address, value); + } } diff -r 7abc6865bdc6 -r 92571f3eeeeb graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/MathIntrinsicNode.java --- a/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/MathIntrinsicNode.java Tue Mar 26 13:03:48 2013 +0100 +++ b/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/MathIntrinsicNode.java Tue Mar 26 14:00:16 2013 +0100 @@ -113,5 +113,23 @@ } @NodeIntrinsic - public static native double compute(double x, @ConstantNodeParameter Operation op); + public static double compute(double value, @ConstantNodeParameter Operation op) { + switch (op) { + case ABS: + return Math.abs(value); + case SQRT: + return Math.sqrt(value); + case LOG: + return Math.log(value); + case LOG10: + return Math.log10(value); + case SIN: + return Math.sin(value); + case COS: + return Math.cos(value); + case TAN: + return Math.tan(value); + } + throw new GraalInternalError("unknown op %s", op); + } } diff -r 7abc6865bdc6 -r 92571f3eeeeb graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/ReverseBytesNode.java --- a/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/ReverseBytesNode.java Tue Mar 26 13:03:48 2013 +0100 +++ b/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/ReverseBytesNode.java Tue Mar 26 14:00:16 2013 +0100 @@ -55,10 +55,14 @@ } @NodeIntrinsic - public static native int reverse(int v); + public static int reverse(int v) { + return Integer.reverseBytes(v); + } @NodeIntrinsic - public static native long reverse(long v); + public static long reverse(long v) { + return Long.reverseBytes(v); + } @Override public void generate(LIRGenerator gen) {