danno, thanks for the review. All comments addressed.
https://codereview.chromium.org/21123008/diff/24001/src/x64/code-stubs-x64.cc
File src/x64/code-stubs-x64.cc (right):
https://codereview.chromium.org/21123008/diff/24001/src/x64/code-stubs-x64.cc#newcode6027
src/x64/code-stubs-x64.cc:6027: __ movq(scratch,
StackOperandForArgument(1, 2, kPointerSize));
There is a push instruction between the function start and this argument
access. So I introduce the disp parameter in
StackOperandFor[Argument|ReversedArgument]. The disp is 0 by default.
https://codereview.chromium.org/21123008/diff/24001/src/x64/code-stubs-x64.cc#newcode6047
src/x64/code-stubs-x64.cc:6047: __ cmpq(scratch,
StackOperandForArgument(0, 2, kPointerSize));
Same explanation above.
https://codereview.chromium.org/21123008/
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