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comparison graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotLIRGenerator.java @ 15910:79a0d9065849

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Support direct comparison of compressed pointers.
author Roland Schatz <roland.schatz@oracle.com>
date Mon, 26 May 2014 16:13:58 +0200
parents e43591136d9f
children af0e42dad358
comparison
equal deleted inserted replaced
15909:e43591136d9f 15910:79a0d9065849
641 assert address.getKind() == Kind.Object : address + " - " + address.getKind() + " not an object!"; 641 assert address.getKind() == Kind.Object : address + " - " + address.getKind() + " not an object!";
642 append(new AMD64Move.NullCheckOp(load(address), state)); 642 append(new AMD64Move.NullCheckOp(load(address), state));
643 } 643 }
644 644
645 @Override 645 @Override
646 protected void emitCompareOp(PlatformKind cmpKind, Variable left, Value right) {
647 if (right instanceof HotSpotConstant) {
648 append(new AMD64HotSpotCompare.HotSpotCompareConstantOp(left, (Constant) right));
649 } else if (cmpKind == NarrowOopStamp.NarrowOop) {
650 append(new AMD64HotSpotCompare.HotSpotCompareNarrowOp(left, asAllocatable(right)));
651 } else {
652 super.emitCompareOp(cmpKind, left, right);
653 }
654 }
655
656 @Override
657 protected void emitCompareMemoryConOp(Kind kind, AMD64AddressValue address, Constant value, LIRFrameState state) {
658 if (value instanceof HotSpotConstant) {
659 append(new AMD64HotSpotCompare.HotSpotCompareMemoryConstantOp(kind, address, value, state));
660 } else {
661 super.emitCompareMemoryConOp(kind, address, value, state);
662 }
663 }
664
665 @Override
646 public boolean canInlineConstant(Constant c) { 666 public boolean canInlineConstant(Constant c) {
647 if (HotSpotCompressedNullConstant.COMPRESSED_NULL.equals(c)) { 667 if (HotSpotCompressedNullConstant.COMPRESSED_NULL.equals(c)) {
648 return true; 668 return true;
649 } else if (c instanceof HotSpotObjectConstant) { 669 } else if (c instanceof HotSpotObjectConstant) {
650 return HotSpotObjectConstant.isCompressed(c); 670 return HotSpotObjectConstant.isCompressed(c);