[Bug target/98911] Add folding and remove expanders for x86 *pcmp{et,gt}* builtins

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98911

--- Comment #1 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:c54a9f7259fce1a221270f21d8076c960c7d0163

commit r12-110-gc54a9f7259fce1a221270f21d8076c960c7d0163
Author: liuhongt <hongtao....@intel.com>
Date:   Tue Feb 23 11:17:40 2021 +0800

    Add folding and remove expanders for x86 *pcmp{et,gt}* builtins [PR
target/98911]

    gcc/ChangeLog:

            PR target/98911
            * config/i386/i386-builtin.def (BDESC): Change the icode of
            the following builtins to CODE_FOR_nothing.
            * config/i386/i386.c (ix86_gimple_fold_builtin): Fold
            IX86_BUILTIN_PCMPEQB128, IX86_BUILTIN_PCMPEQW128,
            IX86_BUILTIN_PCMPEQD128, IX86_BUILTIN_PCMPEQQ,
            IX86_BUILTIN_PCMPEQB256, IX86_BUILTIN_PCMPEQW256,
            IX86_BUILTIN_PCMPEQD256, IX86_BUILTIN_PCMPEQQ256,
            IX86_BUILTIN_PCMPGTB128, IX86_BUILTIN_PCMPGTW128,
            IX86_BUILTIN_PCMPGTD128, IX86_BUILTIN_PCMPGTQ,
            IX86_BUILTIN_PCMPGTB256, IX86_BUILTIN_PCMPGTW256,
            IX86_BUILTIN_PCMPGTD256, IX86_BUILTIN_PCMPGTQ256.
            * config/i386/sse.md (avx2_eq<mode>3): Deleted.
            (sse2_eq<mode>3): Ditto.
            (sse4_1_eqv2di3): Ditto.
            (sse2_gt<mode>3): Rename to ..
            (*sse2_gt<mode>3): .. this.

    gcc/testsuite/ChangeLog:

            PR target/98911
            * gcc.target/i386/pr98911.c: New test.
            * gcc.target/i386/funcspec-8.c: Replace __builtin_ia32_pcmpgtq
            with __builtin_ia32_pcmpistrm128 since it has been folded.