[Bug tree-optimization/127190] [17 Regression] ICE in vect_create_constant_vectors at tree-vect-slp.cc:10912 since r17-3793
cvs-commit at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Wed Sep 2 11:21:34 GMT 2026
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127190
--- Comment #3 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>:
https://gcc.gnu.org/g:439cd07b51676996889b1277afd46c1053d24ebc
commit r17-3856-g439cd07b51676996889b1277afd46c1053d24ebc
Author: Richard Biener <rguenther@suse.de>
Date: Wed Sep 2 11:41:23 2026 +0200
tree-optimization/127190 - ICE in vectorizable_lane_reducing
The following properly fails analyzing a lane-reducing reduction
when vect_get_num_copies_for_invariant fails instead of asserting
it does not. While analysis later verifies we can create the
constant we use the info here for costing, so we have to fail
early.
PR tree-optimization/127190
* tree-vect-loop.cc (vectorizable_lane_reducing): Fail
when vect_get_num_copies_for_invariant does.
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