https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98348
--- Comment #17 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by hongtao Liu <liuho...@gcc.gnu.org>: https://gcc.gnu.org/g:ee78c20e74d30284fee36e22a64e86e45e676029 commit r11-6849-gee78c20e74d30284fee36e22a64e86e45e676029 Author: liuhongt <hongtao....@intel.com> Date: Fri Dec 18 15:56:06 2020 +0800 Lower AVX512 vector comparison to AVX version when dest is vector. gcc/ChangeLog: PR target/96891 PR target/98348 * config/i386/sse.md (VI_128_256): New mode iterator. (*avx_cmp<mode>3_1, *avx_cmp<mode>3_2, *avx_cmp<mode>3_3, *avx_cmp<mode>3_4, *avx2_eq<mode>3, *avx2_pcmp<mode>3_1, *avx2_pcmp<mode>3_2, *avx2_gt<mode>3): New define_insn_and_split to lower avx512 vector comparison to avx version when dest is vector. (*<avx512>_cmp<mode>3,*<avx512>_cmp<mode>3,*<avx512>_ucmp<mode>3): define_insn_and_split for negating the comparison result. * config/i386/predicates.md (float_vector_all_ones_operand): New predicate. * config/i386/i386-expand.c (ix86_expand_sse_movcc): Use general NOT operator without UNSPEC_MASKOP. gcc/testsuite/ChangeLog: PR target/96891 PR target/98348 * gcc.target/i386/avx512bw-pr96891-1.c: New test. * gcc.target/i386/avx512f-pr96891-1.c: New test. * gcc.target/i386/avx512f-pr96891-2.c: New test. * gcc.target/i386/avx512f-pr96891-3.c: New test. * g++.target/i386/avx512f-pr96891-1.C: New test. * gcc.target/i386/bitwise_mask_op-3.c: Adjust testcase.
