[Bug target/87599] Broadcasting scalar to vector uses stack unnecessarily on x86

[hjl at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87599

--- Comment #9 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> ---
Author: hjl
Date: Sun Oct 14 20:39:05 2018
New Revision: 265151

URL: https://gcc.gnu.org/viewcvs?rev=265151&root=gcc&view=rev
Log:
i386: Add register source to movddup

Add register source to movddup so that IRA will allow register source
for *vec_dupv2di when SSE3 is enabled.

gcc/

        PR target/87599
        * config/i386/sse.md (*vec_dupv2di): Add register source to
        movddup.

gcc/testsuite/

        PR target/87599
        * gcc.target/i386/pr87599.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr87599.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/sse.md
    trunk/gcc/testsuite/ChangeLog