[Bug target/84524] -O3 causes behavior change

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84524

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Mar  5 16:01:03 2018
New Revision: 258252

URL: https://gcc.gnu.org/viewcvs?rev=258252&root=gcc&view=rev
Log:
        PR target/84524
        * config/i386/sse.md (*<code><mode>3): Replace <mask_prefix3> with
        orig,vex.
        (*<plusminus_insn><mode>3): Likewise.  Remove <mask_operand3> uses.

        * gcc.c-torture/execute/pr84524.c: New test.
        * gcc.target/i386/avx512bw-pr84524.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr84524.c
    trunk/gcc/testsuite/gcc.target/i386/avx512bw-pr84524.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/sse.md
    trunk/gcc/testsuite/ChangeLog