On Mon, 28 Oct 2024, Alex Coplan wrote: > From: Tamar Christina <tamar.christ...@arm.com> > > The alignment peeling changes exposed a latent missing dominator update > with early break vectorization, specifically when inserting the vector > skip edge, since the new edge bypasses the prolog skip block and thus > has the potential to subvert its dominance. This patch fixes that.
OK. Thanks, Richard. > gcc/ChangeLog: > > * tree-vect-loop-manip.cc (vect_do_peeling): Update immediate > dominators of nodes that were dominated by the prolog skip block > after inserting vector skip edge. > > gcc/testsuite/ChangeLog: > > * g++.dg/vect/vect-early-break_6.cc: New test. > > Co-Authored-By: Alex Coplan <alex.cop...@arm.com> > --- > .../g++.dg/vect/vect-early-break_6.cc | 25 +++++++++++++++++++ > gcc/tree-vect-loop-manip.cc | 24 ++++++++++++++++++ > 2 files changed, 49 insertions(+) > create mode 100644 gcc/testsuite/g++.dg/vect/vect-early-break_6.cc > > -- Richard Biener <rguent...@suse.de> SUSE Software Solutions Germany GmbH, Frankenstrasse 146, 90461 Nuernberg, Germany; GF: Ivo Totev, Andrew McDonald, Werner Knoblich; (HRB 36809, AG Nuernberg)
