Reviewers: dcarney,
Description:
[x86] Faster/shorter code for stack checks.
Avoid loading the stack pointer and the stack limit into allocatable
registers first, but generate a cmp rsp,[limit] instead.
[email protected]
Please review this at https://codereview.chromium.org/989203002/
Base URL: https://chromium.googlesource.com/v8/v8.git@master
Affected files (+169, -26 lines):
M src/compiler/ia32/code-generator-ia32.cc
M src/compiler/ia32/instruction-codes-ia32.h
M src/compiler/ia32/instruction-selector-ia32.cc
M src/compiler/instruction-selector.h
M src/compiler/node-matchers.h
M src/compiler/raw-machine-assembler.h
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/ia32/instruction-selector-ia32-unittest.cc
M test/unittests/compiler/x64/instruction-selector-x64-unittest.cc
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