[Bug target/71019] AVX512BW instructions emitted even without AVX512BW

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71019

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu May 12 08:33:14 2016
New Revision: 236163

URL: https://gcc.gnu.org/viewcvs?rev=236163&root=gcc&view=rev
Log:
        PR target/71019
        * config/i386/sse.md (<sse2_avx2>_packssdw<mask_name>,
        <sse4_1_avx2>_packusdw<mask_name>): Make sure EVEX encoded insn
        is not emitted unless TARGET_AVX512BW.
        (<sse2_avx2>_packuswb<mask_name>, <sse2_avx2>_packsswb<mask_name>):
        Likewise.  For TARGET_AVX512BW, use "=v" constraint instead of "=x"
        for the result operand.

        * gcc.target/i386/avx512vl-pack-1.c: New test.
        * gcc.target/i386/avx512vl-pack-2.c: New test.
        * gcc.target/i386/avx512bw-pack-2.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/avx512bw-pack-2.c
    trunk/gcc/testsuite/gcc.target/i386/avx512vl-pack-1.c
    trunk/gcc/testsuite/gcc.target/i386/avx512vl-pack-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/sse.md
    trunk/gcc/testsuite/ChangeLog