[Bug target/80819] [6 regression] Useless store to the stack in _mm_set_epi64x with SSE4 -mno-avx

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80819

--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Jun 25 16:56:33 2018
New Revision: 262040

URL: https://gcc.gnu.org/viewcvs?rev=262040&root=gcc&view=rev
Log:
        Backported from mainline
        2017-11-29  Jakub Jelinek  <jakub@redhat.com>

        PR target/80819
        * config/i386/sse.md (vec_concatv2di): Remove * from (=Yr,0,*rm)
        alternative.

        * gcc.target/i386/pr80819-1.c: New test.
        * gcc.target/i386/pr80819-2.c: New test.

Added:
    branches/gcc-6-branch/gcc/testsuite/gcc.target/i386/pr80819-1.c
    branches/gcc-6-branch/gcc/testsuite/gcc.target/i386/pr80819-2.c
Modified:
    branches/gcc-6-branch/gcc/ChangeLog
    branches/gcc-6-branch/gcc/config/i386/sse.md
    branches/gcc-6-branch/gcc/testsuite/ChangeLog