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| author | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-04-18 19:40:30 +0000 |
|---|---|---|
| committer | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-04-18 19:40:30 +0000 |
| commit | 3f6e13de560249f66d6c3373db116e5ba2ca5c2a (patch) | |
| tree | 12cb956dfcb4981785e0a7d11d784aac19142133 /gcc/cfgexpand.c | |
| parent | e6e7a479fb9ff9b4af908c43877f2d17c4f30c37 (diff) | |
| download | gcc-3f6e13de560249f66d6c3373db116e5ba2ca5c2a.tar.gz | |
Optimize load double into xmm with zero_extend
"movq" should used to load double into xmm register with zero_extend:
(set (reg:V2DF 90)
(vec_concat:V2DF (reg/v:DF 88 [ d ])
(const_double:DF 0.0 [0x0.0p+0])))
Unlike "movsd", which only works with load from memory, "movq" works
with both memory and xmm register.
gcc/
PR target/70708
* config/i386/sse.md (sse2_loadlpd): Accept load from "xm" and
replace %vmovsd with "%vmovq".
(vec_concatv2df): Likewise.
gcc/testsuite/
PR target/70708
* gcc.target/i386/pr70708.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235169 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/cfgexpand.c')
0 files changed, 0 insertions, 0 deletions