Reviewers: Søren Gjesse,
Description:
MIPS: Fix a bug in MacroAssembler::CheckFastElements.
This fixes 3 mjsunit tests when running with --stress-opt: object-freeze,
object-prevent-extensions, object-seal.
Original commit was 54ce3d60 (r8176).
BUG=
TEST=
Please review this at http://codereview.chromium.org/7236024/
Affected files:
M src/mips/macro-assembler-mips.cc
Index: src/mips/macro-assembler-mips.cc
diff --git a/src/mips/macro-assembler-mips.cc
b/src/mips/macro-assembler-mips.cc
index
913bfa5e683e5d4aeecfb2bb623c3b7d94e40002..5cbbd18512c23a53de8a592e3bad0d037893c7b2
100644
--- a/src/mips/macro-assembler-mips.cc
+++ b/src/mips/macro-assembler-mips.cc
@@ -2657,9 +2657,8 @@ void MacroAssembler::CheckFastElements(Register map,
Register scratch,
Label* fail) {
STATIC_ASSERT(JSObject::FAST_ELEMENTS == 0);
- lbu(scratch, FieldMemOperand(map, Map::kBitField2Offset));
- And(scratch, scratch, Operand(Map::kMaximumBitField2FastElementValue));
- Branch(fail, hi, scratch, Operand(zero_reg));
+ lbu(scratch, FieldMemOperand(map, Map::kInstanceTypeOffset));
+ Branch(fail, hi, scratch,
Operand(Map::kMaximumBitField2FastElementValue));
}
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