src/x64/stub-cache-x64.cc - Issue 16818014: Only extend storage if FIELD

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Unified Diff: src/x64/stub-cache-x64.cc

Issue 16818014: Only extend storage if FIELD (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge

Patch Set: Created 7 years, 6 months ago

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Index: src/x64/stub-cache-x64.cc

diff --git a/src/x64/stub-cache-x64.cc b/src/x64/stub-cache-x64.cc

index dce2a7e2e8dba1759c2b354e5a0cb6aed9288252..f7819db1fffb2ab7b8fef267fc02df7a26f953e4 100644

--- a/src/x64/stub-cache-x64.cc

+++ b/src/x64/stub-cache-x64.cc

@@ -850,7 +850,8 @@ void StubCompiler::GenerateStoreTransition(MacroAssembler* masm,

ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded());

// Perform map transition for the receiver if necessary.

- if (object->map()->unused_property_fields() == 0) {

+ if (details.type() == FIELD &&

+ object->map()->unused_property_fields() == 0) {

// The properties must be extended before we can store the value.

// We jump to a runtime call that extends the properties array.

__ pop(scratch1); // Return address.

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