src/ia32/codegen-ia32.cc - Issue 115236: Fix for issue 341. In the stub for instanceof, we could try to read...

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

Issue 115236: Fix for issue 341. In the stub for instanceof, we could try to read... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/

Patch Set: Created 11 years, 7 months ago

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Index: src/ia32/codegen-ia32.cc

===================================================================

--- src/ia32/codegen-ia32.cc (revision 1911)

+++ src/ia32/codegen-ia32.cc (working copy)

@@ -7198,6 +7198,8 @@

__ TryGetFunctionPrototype(edx, ebx, ecx, &slow);

// Check that the function prototype is a JS object.

+ __ test(ebx, Immediate(kSmiTagMask));

+ __ j(zero, &slow, not_taken);

__ mov(ecx, FieldOperand(ebx, HeapObject::kMapOffset));

__ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset));

__ cmp(ecx, FIRST_JS_OBJECT_TYPE);

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