[Bug target/44551] [missed optimization] AVX vextractf128 after vinsertf128

[glisse at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44551

--- Comment #14 from Marc Glisse <glisse at gcc dot gnu.org> ---
Author: glisse
Date: Sat Jul 26 09:00:31 2014
New Revision: 213076

URL: https://gcc.gnu.org/viewcvs?rev=213076&root=gcc&view=rev
Log:
2014-07-26  Marc Glisse  <marc.gli...@inria.fr>

    PR target/44551
gcc/
    * simplify-rtx.c (simplify_binary_operation_1) <VEC_SELECT>:
    Optimize inverse of a VEC_CONCAT.
gcc/testsuite/
    * gcc.target/i386/pr44551-1.c: New file.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr44551-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/simplify-rtx.c
    trunk/gcc/testsuite/ChangeLog