https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107734
--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The trunk branch has been updated by Andrew Pinski <pins...@gcc.gnu.org>: https://gcc.gnu.org/g:ee892832ea19b21a3420ef042e582204fac852a2 commit r13-4132-gee892832ea19b21a3420ef042e582204fac852a2 Author: Andrew Pinski <apin...@marvell.com> Date: Thu Nov 17 17:48:00 2022 +0000 Fix PR 107734: valgrind errors with sbitmap in match.pd sbitmap is a simple bitmap and the memory allocated is not cleared on creation; you have to clear it or set it to all ones before using it. This is unlike bitmap which is a sparse bitmap and the entries are cleared as created. The code added in r13-4044-gdc95e1e9702f2f missed that. This patch fixes that mistake. Committed as obvious after a bootstrap and test on x86_64-linux-gnu. gcc/ChangeLog: PR middle-end/107734 * match.pd (perm + vector op pattern): Clear the sbitmap before use.
