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| author | Andrew Pinski <pinskia@gmail.com> | 2023-10-15 10:36:56 -0700 |
|---|---|---|
| committer | Andrew Pinski <pinskia@gmail.com> | 2023-10-16 10:11:13 -0700 |
| commit | c7609acb8a8210188d21b2cd72ecc6d3b2de2ab8 (patch) | |
| tree | e6518a09c07f7b6f4507f0235c84beee3b3034f9 /gcc/cfghooks.cc | |
| parent | 29a4453c7b8a86d242dab89b9e4d222749fd911e (diff) | |
| download | gcc-c7609acb8a8210188d21b2cd72ecc6d3b2de2ab8.zip gcc-c7609acb8a8210188d21b2cd72ecc6d3b2de2ab8.tar.gz gcc-c7609acb8a8210188d21b2cd72ecc6d3b2de2ab8.tar.bz2 | |
MATCH: Improve `A CMP 0 ? A : -A` set of patterns to use bitwise_equal_p.
This improves the `A CMP 0 ? A : -A` set of match patterns to use
bitwise_equal_p which allows an nop cast between signed and unsigned.
This allows catching a few extra cases which were not being caught before.
OK? Bootstrapped and tested on x86_64-linux-gnu with no regressions.
gcc/ChangeLog:
PR tree-optimization/101541
* match.pd (A CMP 0 ? A : -A): Improve
using bitwise_equal_p.
gcc/testsuite/ChangeLog:
PR tree-optimization/101541
* gcc.dg/tree-ssa/phi-opt-36.c: New test.
* gcc.dg/tree-ssa/phi-opt-37.c: New test.
Diffstat (limited to 'gcc/cfghooks.cc')
0 files changed, 0 insertions, 0 deletions