Reviewers: dcarney,
Description:
[turbofan] Strength reduction for inline comparisons.
Perform strength reduction on machine operators with inline comparisons:
CMP & 1 => CMP
1 & CMP => CMP
CMP << 31 >> 31 => CMP
Also strength reduce the following constructs:
x + (0 - y) => x - y
(0 - y) + x => x - y
[email protected]
Please review this at https://codereview.chromium.org/951903003/
Base URL: https://chromium.googlesource.com/v8/v8.git@master
Affected files (+304, -127 lines):
M BUILD.gn
M src/compiler/machine-operator-reducer.h
M src/compiler/machine-operator-reducer.cc
M src/compiler/node-matchers.h
A src/compiler/node-matchers.cc
M src/compiler/opcodes.h
M test/unittests/compiler/machine-operator-reducer-unittest.cc
M test/unittests/compiler/opcodes-unittest.cc
M tools/gyp/v8.gyp
--
--
v8-dev mailing list
[email protected]
http://groups.google.com/group/v8-dev
---
You received this message because you are subscribed to the Google Groups "v8-dev" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
