[Bug target/64252] [5 Regression] expand_vec_perm_pblendv caused miscompilation

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64252

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Dec 10 19:59:57 2014
New Revision: 218602

URL: https://gcc.gnu.org/viewcvs?rev=218602&root=gcc&view=rev
Log:
    PR target/64252
    * config/i386/i386.c (expand_vec_perm_pblendv): If not testing_p,
    set dcopy.target to a new pseudo.

    * gcc.dg/vect/pr64252.c: New test.
    * gcc.dg/pr64252.c: New test.
    * gcc.target/i386/avx2-pr64252.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr64252.c
    trunk/gcc/testsuite/gcc.dg/vect/pr64252.c
    trunk/gcc/testsuite/gcc.target/i386/avx2-pr64252.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/testsuite/ChangeLog