src/x64/lithium-codegen-x64.cc - Issue 21357003: Stores to external references don't need write barriers.

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Unified Diff: src/x64/lithium-codegen-x64.cc

Issue 21357003: Stores to external references don't need write barriers. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge

Patch Set: Created 7 years, 5 months ago

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Index: src/x64/lithium-codegen-x64.cc

diff --git a/src/x64/lithium-codegen-x64.cc b/src/x64/lithium-codegen-x64.cc

index 58dd5157a9a13ed9a5ba88cfd87909e0ef2b3fd6..a8a691ed5daf7b25279112f7aaa25a259d9b841f 100644

--- a/src/x64/lithium-codegen-x64.cc

+++ b/src/x64/lithium-codegen-x64.cc

@@ -3942,6 +3942,7 @@ void LCodeGen::DoStoreNamedField(LStoreNamedField* instr) {

int offset = access.offset();

if (access.IsExternalMemory()) {

+ ASSERT(!instr->hydrogen()->NeedsWriteBarrier());

if (instr->object()->IsConstantOperand()) {

ASSERT(value.is(rax));

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