< prev index next >
src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.replacements.amd64/src/org/graalvm/compiler/replacements/amd64/AMD64StringUTF16Substitutions.java
Print this page
rev 56282 : [mq]: graal
@@ -1,7 +1,7 @@
/*
- * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2017, 2019, 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.
@@ -120,12 +120,10 @@
ReplacementsUtil.runtimeAssert(targetCount > 0, "StringUTF16.indexOfUnsafe invalid args: targetCount <= 0");
ReplacementsUtil.runtimeAssert(targetCount <= length(target), "StringUTF16.indexOfUnsafe invalid args: targetCount > length(target)");
ReplacementsUtil.runtimeAssert(sourceCount >= targetCount, "StringUTF16.indexOfUnsafe invalid args: sourceCount < targetCount");
if (targetCount == 1) {
return AMD64ArrayIndexOf.indexOf1Char(source, sourceCount, fromIndex, StringUTF16Substitutions.getChar(target, 0));
- } else if (targetCount == 2) {
- return AMD64ArrayIndexOf.indexOfTwoConsecutiveChars(source, sourceCount, fromIndex, StringUTF16Substitutions.getChar(target, 0), StringUTF16Substitutions.getChar(target, 1));
} else {
int haystackLength = sourceCount - (targetCount - 2);
int offset = fromIndex;
while (offset < haystackLength) {
int indexOfResult = AMD64ArrayIndexOf.indexOfTwoConsecutiveChars(source, haystackLength, offset, StringUTF16Substitutions.getChar(target, 0),
@@ -134,11 +132,11 @@
return -1;
}
offset = indexOfResult;
Pointer cmpSourcePointer = charOffsetPointer(source, offset);
Pointer targetPointer = pointer(target);
- if (ArrayRegionEqualsNode.regionEquals(cmpSourcePointer, targetPointer, targetCount, JavaKind.Char)) {
+ if (targetCount == 2 || ArrayRegionEqualsNode.regionEquals(cmpSourcePointer, targetPointer, targetCount, JavaKind.Char)) {
return offset;
}
offset++;
}
return -1;
@@ -151,12 +149,10 @@
ReplacementsUtil.runtimeAssert(targetCount > 0, "StringUTF16.indexOfLatin1Unsafe invalid args: targetCount <= 0");
ReplacementsUtil.runtimeAssert(targetCount <= target.length, "StringUTF16.indexOfLatin1Unsafe invalid args: targetCount > length(target)");
ReplacementsUtil.runtimeAssert(sourceCount >= targetCount, "StringUTF16.indexOfLatin1Unsafe invalid args: sourceCount < targetCount");
if (targetCount == 1) {
return AMD64ArrayIndexOf.indexOf1Char(source, sourceCount, fromIndex, (char) Byte.toUnsignedInt(target[0]));
- } else if (targetCount == 2) {
- return AMD64ArrayIndexOf.indexOfTwoConsecutiveChars(source, sourceCount, fromIndex, (char) Byte.toUnsignedInt(target[0]), (char) Byte.toUnsignedInt(target[1]));
} else {
int haystackLength = sourceCount - (targetCount - 2);
int offset = fromIndex;
while (offset < haystackLength) {
int indexOfResult = AMD64ArrayIndexOf.indexOfTwoConsecutiveChars(source, haystackLength, offset, (char) Byte.toUnsignedInt(target[0]), (char) Byte.toUnsignedInt(target[1]));
@@ -164,11 +160,11 @@
return -1;
}
offset = indexOfResult;
Pointer cmpSourcePointer = charOffsetPointer(source, offset);
Pointer targetPointer = pointer(target);
- if (ArrayRegionEqualsNode.regionEquals(cmpSourcePointer, targetPointer, targetCount, JavaKind.Char, JavaKind.Byte)) {
+ if (targetCount == 2 || ArrayRegionEqualsNode.regionEquals(cmpSourcePointer, targetPointer, targetCount, JavaKind.Char, JavaKind.Byte)) {
return offset;
}
offset++;
}
return -1;
@@ -183,13 +179,11 @@
* public static int compress(char[] src, int src_indx, byte[] dst, int dst_indx, int len)
* </pre>
*/
@MethodSubstitution
public static int compress(char[] src, int srcIndex, byte[] dest, int destIndex, int len) {
- if (len < 0 || srcIndex < 0 || (srcIndex + len > src.length) || destIndex < 0 || (destIndex + len > dest.length)) {
- DeoptimizeNode.deopt(DeoptimizationAction.None, DeoptimizationReason.BoundsCheckException);
- }
+ checkLimits(src.length, srcIndex, dest.length, destIndex, len);
Pointer srcPointer = Word.objectToTrackedPointer(src).add(charArrayBaseOffset(INJECTED)).add(srcIndex * charArrayIndexScale(INJECTED));
Pointer destPointer = Word.objectToTrackedPointer(dest).add(byteArrayBaseOffset(INJECTED)).add(destIndex * byteArrayIndexScale(INJECTED));
return AMD64StringUTF16CompressNode.compress(srcPointer, destPointer, len, JavaKind.Char);
}
@@ -206,15 +200,19 @@
* {@code srcIndex} and {@code len} are in terms of char elements and have to be scaled by 2
* when referring to {@code src}.
*/
@MethodSubstitution
public static int compress(byte[] src, int srcIndex, byte[] dest, int destIndex, int len) {
- if (len < 0 || srcIndex < 0 || (srcIndex * 2 + len * 2 > src.length) || destIndex < 0 || (destIndex + len > dest.length)) {
- DeoptimizeNode.deopt(DeoptimizationAction.None, DeoptimizationReason.BoundsCheckException);
- }
+ checkLimits(src.length >> 1, srcIndex, dest.length, destIndex, len);
Pointer srcPointer = Word.objectToTrackedPointer(src).add(byteArrayBaseOffset(INJECTED)).add(srcIndex * 2 * byteArrayIndexScale(INJECTED));
Pointer destPointer = Word.objectToTrackedPointer(dest).add(byteArrayBaseOffset(INJECTED)).add(destIndex * byteArrayIndexScale(INJECTED));
return AMD64StringUTF16CompressNode.compress(srcPointer, destPointer, len, JavaKind.Byte);
}
+ private static void checkLimits(int srcLen, int srcIndex, int destLen, int destIndex, int len) {
+ if (len < 0 || srcIndex < 0 || (srcIndex + len > srcLen) || destIndex < 0 || (destIndex + len > destLen)) {
+ DeoptimizeNode.deopt(DeoptimizationAction.None, DeoptimizationReason.BoundsCheckException);
+ }
+ }
+
}
< prev index next >