diff options
| author | liuhongt <hongtao.liu@intel.com> | 2024-06-20 12:41:13 +0800 |
|---|---|---|
| committer | liuhongt <hongtao.liu@intel.com> | 2024-06-26 11:12:44 +0800 |
| commit | aac00d09859cc5934bd0f7493d537b8430337773 (patch) | |
| tree | f98de0cf9615b66407c35161abdb2b25a37cf04c /gcc/tree-vect-loop.cc | |
| parent | 01f8b1002147c08f206a058a6d1f7bfb006aa324 (diff) | |
| download | gcc-aac00d09859cc5934bd0f7493d537b8430337773.zip gcc-aac00d09859cc5934bd0f7493d537b8430337773.tar.gz gcc-aac00d09859cc5934bd0f7493d537b8430337773.tar.bz2 | |
Optimize a < 0 ? -1 : 0 to (signed)a >> 31.
Try to optimize x < 0 ? -1 : 0 into (signed) x >> 31
and x < 0 ? 1 : 0 into (unsigned) x >> 31.
Move the optimization did in ix86_expand_int_vcond to match.pd
gcc/ChangeLog:
PR target/114189
* match.pd: Simplify a < 0 ? -1 : 0 to (signed) >> 31 and a <
0 ? 1 : 0 to (unsigned) a >> 31 for vector integer type.
gcc/testsuite/ChangeLog:
* gcc.target/i386/avx2-pr115517.c: New test.
* gcc.target/i386/avx512-pr115517.c: New test.
* g++.target/i386/avx2-pr115517.C: New test.
* g++.target/i386/avx512-pr115517.C: New test.
* g++.dg/tree-ssa/pr88152-1.C: Adjust testcase.
Diffstat (limited to 'gcc/tree-vect-loop.cc')
0 files changed, 0 insertions, 0 deletions