src/ia32/full-codegen-ia32.cc - Issue 950283002: Move Maps' back pointers from "transitions" to "constructor" field

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Unified Diff: src/ia32/full-codegen-ia32.cc

Issue 950283002: Move Maps' back pointers from "transitions" to "constructor" field (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master

Patch Set: fix stupidity on arm64 Created 5 years, 10 months ago

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Index: src/ia32/full-codegen-ia32.cc

diff --git a/src/ia32/full-codegen-ia32.cc b/src/ia32/full-codegen-ia32.cc

index b76592238d732a643d98f0cd32649feb6f875891..e2e7b4c87f5c3e3f00921d66fbb269749d3e1a33 100644

--- a/src/ia32/full-codegen-ia32.cc

+++ b/src/ia32/full-codegen-ia32.cc

@@ -3667,8 +3667,8 @@ void FullCodeGenerator::EmitClassOf(CallRuntime* expr) {

STATIC_ASSERT(LAST_NONCALLABLE_SPEC_OBJECT_TYPE == LAST_TYPE - 1);

// Check if the constructor in the map is a JS function.

- __ mov(eax, FieldOperand(eax, Map::kConstructorOffset));

- __ CmpObjectType(eax, JS_FUNCTION_TYPE, ebx);

+ __ GetMapConstructor(eax, eax, ebx);

+ __ CmpInstanceType(ebx, JS_FUNCTION_TYPE);

__ j(not_equal, &non_function_constructor);

// eax now contains the constructor function. Grab the

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