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| author | Richard Biener <rguenther@suse.de> | 2021-01-27 15:20:58 +0100 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2021-01-27 17:33:34 +0100 |
| commit | c91db798ec65b3e55f2380ca1530ecb71544f1bb (patch) | |
| tree | 04dda92d83caa69419cbc1b51205de5550c0f7b0 /gcc/tree-ssa-loop-niter.c | |
| parent | 3fd10728cb1aacf593a7a006ad40e874f791d655 (diff) | |
| download | gcc-c91db798ec65b3e55f2380ca1530ecb71544f1bb.zip gcc-c91db798ec65b3e55f2380ca1530ecb71544f1bb.tar.gz gcc-c91db798ec65b3e55f2380ca1530ecb71544f1bb.tar.bz2 | |
tree-optimization/98854 - avoid some PHI BB vectorization
This avoids cases of PHI node vectorization that just causes us
to insert vector CTORs inside loops for values only required
outside of the loop.
2021-01-27 Richard Biener <rguenther@suse.de>
PR tree-optimization/98854
* tree-vect-slp.c (vect_build_slp_tree_2): Also build
PHIs from scalars when the number of CTORs matches the
number of children.
* gcc.dg/vect/bb-slp-pr98854.c: New testcase.
Diffstat (limited to 'gcc/tree-ssa-loop-niter.c')
0 files changed, 0 insertions, 0 deletions