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| author | Kewen Lin <linkw@linux.ibm.com> | 2020-11-05 00:04:10 -0600 |
|---|---|---|
| committer | Kewen Lin <linkw@linux.ibm.com> | 2020-11-05 00:28:28 -0600 |
| commit | 025f434a87336e38bf5140fba2005081876aa911 (patch) | |
| tree | 021b7f0061e50d898c54a847da764f73b600c9b7 /gcc/tree-vectorizer.h | |
| parent | 35c125cb6ac47fa97aa5ee22f987a38e63adad08 (diff) | |
| download | gcc-025f434a87336e38bf5140fba2005081876aa911.zip gcc-025f434a87336e38bf5140fba2005081876aa911.tar.gz gcc-025f434a87336e38bf5140fba2005081876aa911.tar.bz2 | |
rs6000: Use direct move for char/short vector CTOR [PR96933]
This patch is to make vector CTOR with char/short leverage direct
move instructions when they are available. With one constructed
test case, it can speed up 145% for char and 190% for short on P9.
Tested SPEC2017 x264_r at -Ofast on P9, it gets 1.61% speedup
(but based on unexpected SLP see PR96789).
Bootstrapped/regtested on powerpc64{,le}-linux-gnu P8 and
powerpc64le-linux-gnu P9.
gcc/ChangeLog:
PR target/96933
* config/rs6000/rs6000.c (rs6000_expand_vector_init): Use direct move
instructions for vector construction with char/short types.
* config/rs6000/rs6000.md (p8_mtvsrwz_v16qisi2): New define_insn.
(p8_mtvsrd_v16qidi2): Likewise.
gcc/testsuite/ChangeLog:
PR target/96933
* gcc.target/powerpc/pr96933-1.c: New test.
* gcc.target/powerpc/pr96933-2.c: New test.
* gcc.target/powerpc/pr96933-3.c: New test.
* gcc.target/powerpc/pr96933-4.c: New test.
* gcc.target/powerpc/pr96933.h: New test.
* gcc.target/powerpc/pr96933-run.h: New test.
Diffstat (limited to 'gcc/tree-vectorizer.h')
0 files changed, 0 insertions, 0 deletions