[Bug target/93089] Force mprefer-vector-width=512 in 'e' simd clones

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93089

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Jan  3 10:14:03 2020
New Revision: 279857

URL: https://gcc.gnu.org/viewcvs?rev=279857&root=gcc&view=rev
Log:
        PR target/93089
        * config/i386/i386-options.c (ix86_simd_clone_adjust): If
        TARGET_PREFER_AVX128, use prefer-vector-width=256 for 'c' and 'd'
        simd clones.  If TARGET_PREFER_AVX256, use prefer-vector-width=512
        for 'e' simd clones.

        * gcc.target/i386/pr93089-2.c: New test.
        * gcc.target/i386/pr93089-3.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr93089-2.c
    trunk/gcc/testsuite/gcc.target/i386/pr93089-3.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386-options.c
    trunk/gcc/testsuite/ChangeLog