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| author | Uros Bizjak <ubizjak@gmail.com> | 2023-08-24 22:23:52 +0200 |
|---|---|---|
| committer | Uros Bizjak <ubizjak@gmail.com> | 2023-08-24 22:24:43 +0200 |
| commit | 6dd73f0f00f454a05552b008a1d56560bd3f1d4a (patch) | |
| tree | d40280be6b81195a798b4103aaca923ac653379b /gcc/gcc.cc | |
| parent | 721f7e2c4e5eed645593258624dd91e6c39f3bd2 (diff) | |
| download | gcc-6dd73f0f00f454a05552b008a1d56560bd3f1d4a.zip gcc-6dd73f0f00f454a05552b008a1d56560bd3f1d4a.tar.gz gcc-6dd73f0f00f454a05552b008a1d56560bd3f1d4a.tar.bz2 | |
i386: Optimize pinsrq of 0 with index 1 into movq [PR94866]
Add new pattern involving vec_merge RTX that is produced by combine from the
combination of sse4_1_pinsrq and *movdi_internal:
7: r86:DI=0
8: r85:V2DI=vec_merge(vec_duplicate(r86:DI),r87:V2DI,0x2)
REG_DEAD r87:V2DI
REG_DEAD r86:DI
Successfully matched this instruction:
(set (reg:V2DI 85 [ a ])
(vec_merge:V2DI (reg:V2DI 87)
(const_vector:V2DI [
(const_int 0 [0]) repeated x2
])
(const_int 1 [0x1])))
PR target/94866
gcc/ChangeLog:
* config/i386/sse.md (*sse2_movq128_<mode>_1): New insn pattern.
gcc/testsuite/ChangeLog:
* g++.target/i386/pr94866.C: New test.
Diffstat (limited to 'gcc/gcc.cc')
0 files changed, 0 insertions, 0 deletions