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| author | Richard Biener <rguenther@suse.de> | 2020-06-24 15:49:00 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2020-06-24 19:49:16 +0200 |
| commit | c78907d514d65483c7ddfb4cb1f5c57f23da73d9 (patch) | |
| tree | 2936ed9c1ed2cff0e6208f00255916b49aea0377 /gcc/fortran/iresolve.c | |
| parent | 796190e538c96c28b5803f6d3dab1add87950c0e (diff) | |
| download | gcc-c78907d514d65483c7ddfb4cb1f5c57f23da73d9.zip gcc-c78907d514d65483c7ddfb4cb1f5c57f23da73d9.tar.gz gcc-c78907d514d65483c7ddfb4cb1f5c57f23da73d9.tar.bz2 | |
tree-optimization/95866 - avoid vectorizing uniform SLP subgraphs
This avoids vectorizing SLP subgraphs that just compute uniform
operations on all-same operands. That fixes the less interesting
(but most embarrasing) part of the testcase in the PR. On the
way it also fixed a missing matches[0] reset in the last
refactoring touching that place.
2020-06-24 Richard Biener <rguenther@suse.de>
PR tree-optimization/95866
* tree-vect-slp.c (vect_slp_tree_uniform_p): New.
(vect_build_slp_tree_2): Properly reset matches[0],
ignore uniform constants.
* gcc.target/i386/pr95866-1.c: New testcase.
Diffstat (limited to 'gcc/fortran/iresolve.c')
0 files changed, 0 insertions, 0 deletions