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gcc.gnu.org Git - gcc.git/commit
tree-optimization/101028 - fix endless SLP reassoc discovery
This fixes a missing clearing of mismatched lanes from the
fatal fail path in SLP reassoc discovery in the most conservative
way.
2021-06-11 Richard Biener <rguenther@suse.de>
PR tree-optimization/101028
* tree-vect-slp.c (vect_build_slp_tree_2): When SLP
reassoc discovery fails fatally, mark appropriate lanes
in matches[] so.
* gcc.dg/pr101028.c: New testcase.
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