[Bug target/83252] [8 Regression] Wrong code with "-march=skylake-avx512 -O3"

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83252

--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Dec  8 00:03:28 2017
New Revision: 255487

URL: https://gcc.gnu.org/viewcvs?rev=255487&root=gcc&view=rev
Log:
        PR target/83252
        * gcc.target/i386/i386.exp (check_effective_target_bmi2): Moved to ...
        * lib/target-supports.exp (check_effective_target_bmi2): ... here. 
Guard with
        i?86-*-* x86_64-*-*.
        * g++.dg/opt/pr83252.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/opt/pr83252.C
Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.target/i386/i386.exp
    trunk/gcc/testsuite/lib/target-supports.exp