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Unified Diff: src/ic/ia32/handler-compiler-ia32.cc

Issue 787153002: Reland 'Do not embed constant functions in StoreTransition stub.' (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 6 years ago
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Index: src/ic/ia32/handler-compiler-ia32.cc
diff --git a/src/ic/ia32/handler-compiler-ia32.cc b/src/ic/ia32/handler-compiler-ia32.cc
index d707e695d63c0b055b0348a3e0daa06b05347ac8..6e009038d22671f7c8ea717c1a479aaa6e00a585 100644
--- a/src/ic/ia32/handler-compiler-ia32.cc
+++ b/src/ic/ia32/handler-compiler-ia32.cc
@@ -343,10 +343,18 @@ void NamedStoreHandlerCompiler::GenerateRestoreMap(Handle<Map> transition,
}
-void NamedStoreHandlerCompiler::GenerateConstantCheck(Object* constant,
+void NamedStoreHandlerCompiler::GenerateConstantCheck(Register map_reg,
+ int descriptor,
Register value_reg,
+ Register scratch,
Label* miss_label) {
- __ CmpObject(value_reg, handle(constant, isolate()));
+ DCHECK(!map_reg.is(scratch));
+ DCHECK(!map_reg.is(value_reg));
+ DCHECK(!value_reg.is(scratch));
+ __ LoadInstanceDescriptors(map_reg, scratch);
+ __ mov(scratch,
+ FieldOperand(scratch, DescriptorArray::GetValueOffset(descriptor)));
+ __ cmp(value_reg, scratch);
__ j(not_equal, miss_label);
}

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