Reviewers: titzer,
Message:
PTAL. Chump change on zlib.
Description:
[turbofan]: More optimizations to add and subtract operations on x64
- Use "leal" for subtraction of integer constant when non-constant input to
subtract is used more than once.
- Use "incl", "decl", and "addl" when they are smaller/cheaper than their
leal/addl/subl equivalant.
Please review this at https://codereview.chromium.org/738073002/
Base URL: https://chromium.googlesource.com/v8/v8.git@master
Affected files (+198, -2 lines):
M src/compiler/instruction-selector.h
M src/compiler/instruction-selector.cc
M src/compiler/x64/code-generator-x64.cc
M src/compiler/x64/instruction-codes-x64.h
M src/compiler/x64/instruction-selector-x64.cc
M test/unittests/compiler/x64/instruction-selector-x64-unittest.cc
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