src/arm/lithium-codegen-arm.cc - Issue 6814016: Fix cow fixed array map check in optimized arm code.

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Unified Diff: src/arm/lithium-codegen-arm.cc

Issue 6814016: Fix cow fixed array map check in optimized arm code. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge

Patch Set: Created 9 years, 8 months ago

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Index: src/arm/lithium-codegen-arm.cc

diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc

index 1ac509c5eda7e96440fe2570feeea84e709f7083..585b6587cfab7134b1bfefacd71076e8d3fae632 100644

--- a/src/arm/lithium-codegen-arm.cc

+++ b/src/arm/lithium-codegen-arm.cc

@@ -2410,6 +2410,7 @@ void LCodeGen::DoLoadElements(LLoadElements* instr) {

__ b(eq, &done);

__ LoadRoot(ip, Heap::kFixedCOWArrayMapRootIndex);

__ cmp(scratch, ip);

+ __ b(eq, &done);

__ ldr(scratch, FieldMemOperand(result, HeapObject::kMapOffset));

__ ldrb(scratch, FieldMemOperand(scratch, Map::kInstanceTypeOffset));

__ sub(scratch, scratch, Operand(FIRST_EXTERNAL_ARRAY_TYPE));

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