DBC. Unless I'm missing something, this patch is buggy.
https://codereview.chromium.org/25696004/diff/21001/src/ia32/lithium-codegen-ia32.cc
File src/ia32/lithium-codegen-ia32.cc (right):
https://codereview.chromium.org/25696004/diff/21001/src/ia32/lithium-codegen-ia32.cc#newcode4440
src/ia32/lithium-codegen-ia32.cc:4440: __ mov_b(operand,
ToInteger32(operand_value));
Here you're passing an int32_t to a function that expects an int8_t. I'm
surprised this even compiles on Windows.
https://codereview.chromium.org/25696004/diff/21001/src/ia32/lithium-codegen-ia32.cc#newcode4447
src/ia32/lithium-codegen-ia32.cc:4447: __ mov_b(operand, value);
This will fail the CHECK in mov_b when the register allocator happens to
pick, say, edi for |value|. If you had added a test case, you would have
noticed ;-)
Same thing twice more below.
https://codereview.chromium.org/25696004/
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