[Bug target/84786] [miscompilation] vunpcklpd accessing xmm16-22 targeting KNL

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84786

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Tue Mar 13 08:03:28 2018
New Revision: 258475

URL: https://gcc.gnu.org/viewcvs?rev=258475&root=gcc&view=rev
Log:
        PR target/84786
        * config/i386/sse.md (sse2_loadhpd): Use Yv constraint rather than v
        on the last operand.

        * gcc.target/i386/avx512f-pr84786-1.c: New test.
        * gcc.target/i386/avx512f-pr84786-2.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/avx512f-pr84786-1.c
    trunk/gcc/testsuite/gcc.target/i386/avx512f-pr84786-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/sse.md
    trunk/gcc/testsuite/ChangeLog