https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92818
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Thu Dec 5 13:02:57 2019 New Revision: 278998 URL: https://gcc.gnu.org/viewcvs?rev=278998&root=gcc&view=rev Log: 2019-12-05 Richard Biener <rguent...@suse.de> PR middle-end/92818 * tree-ssa-forwprop.c (simplify_vector_constructor): Improve heuristics on what don't care element to choose. * match.pd (VEC_PERM_EXPR -> BIT_INSERT_EXPR): Fix typo. * gcc.target/i386/pr92818.c: New testcase. Added: trunk/gcc/testsuite/gcc.target/i386/pr92818.c Modified: trunk/gcc/ChangeLog trunk/gcc/match.pd trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-forwprop.c