https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98461
--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:8f7941ca37001773a36add8119791725aeb823ba commit r11-6367-g8f7941ca37001773a36add8119791725aeb823ba Author: Jakub Jelinek <ja...@redhat.com> Date: Wed Dec 30 11:21:24 2020 +0100 i386: Optimize pmovmskb on inverted vector to inversion of pmovmskb result [PR98461] The following patch adds combine splitters to optimize: - vpcmpeqd %ymm1, %ymm1, %ymm1 - vpandn %ymm1, %ymm0, %ymm0 vpmovmskb %ymm0, %eax + notl %eax etc. (for vectors with less than 32 elements with xorl instead of notl). 2020-12-30 Jakub Jelinek <ja...@redhat.com> PR target/98461 * config/i386/sse.md (<sse2_avx2>_pmovmskb): Add splitters for pmovmskb of NOT vector. * gcc.target/i386/sse2-pr98461.c: New test. * gcc.target/i386/avx2-pr98461.c: New test.
