Drive by

http://codereview.chromium.org/8054043/diff/1/src/x64/macro-assembler-x64.cc
File src/x64/macro-assembler-x64.cc (right):

http://codereview.chromium.org/8054043/diff/1/src/x64/macro-assembler-x64.cc#newcode2729
src/x64/macro-assembler-x64.cc:2729: push(kScratchRegister);
Why use the fpu stack here? why not use sse2 instructions to do this>

http://codereview.chromium.org/8054043/

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