src/x64/full-codegen-x64.cc - Issue 650073002: vector-based ICs did not update type feedback counts correctly.

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

Issue 650073002: vector-based ICs did not update type feedback counts correctly. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge

Patch Set: REBASE. Created 6 years, 2 months ago

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

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

index 9b63de9c9baf8214f42ed5cd549a886a0d96e21b..c078f979998946925dd166f50f4aeec3ce1562ef 100644

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

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

@@ -1149,7 +1149,8 @@ void FullCodeGenerator::VisitForInStatement(ForInStatement* stmt) {

// No need for a write barrier, we are storing a Smi in the feedback vector.

__ Move(rbx, FeedbackVector());

- __ Move(FieldOperand(rbx, FixedArray::OffsetOfElementAt(slot.ToInt())),

+ int vector_index = FeedbackVector()->GetIndex(slot);

+ __ Move(FieldOperand(rbx, FixedArray::OffsetOfElementAt(vector_index)),

TypeFeedbackVector::MegamorphicSentinel(isolate()));

__ Move(rbx, Smi::FromInt(1)); // Smi indicates slow check

__ movp(rcx, Operand(rsp, 0 * kPointerSize)); // Get enumerated object

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