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| author | Richard Biener <rguenther@suse.de> | 2022-10-13 14:24:05 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2022-10-13 15:17:06 +0200 |
| commit | 5cbaf84c191b9a3e3cb26545c808d208bdbf2ab5 (patch) | |
| tree | 448937298d1f04e9867d62e5370b6245df7aecbf /gcc/genmodes.cc | |
| parent | 5364b425934436b9ba52bd95ed8a8a19ce7af207 (diff) | |
| download | gcc-5cbaf84c191b9a3e3cb26545c808d208bdbf2ab5.zip gcc-5cbaf84c191b9a3e3cb26545c808d208bdbf2ab5.tar.gz gcc-5cbaf84c191b9a3e3cb26545c808d208bdbf2ab5.tar.bz2 | |
tree-optimization/107160 - avoid reusing multiple accumulators
Epilogue vectorization is not set up to re-use a vectorized
accumulator consisting of more than one vector. For non-SLP
we always reduce to a single but for SLP that isn't happening.
In such case we currenlty miscompile the epilog so avoid this.
PR tree-optimization/107160
* tree-vect-loop.cc (vect_create_epilog_for_reduction):
Do not register accumulator if we failed to reduce it
to a single vector.
* gcc.dg/vect/pr107160.c: New testcase.
Diffstat (limited to 'gcc/genmodes.cc')
0 files changed, 0 insertions, 0 deletions