https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79333
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:d846f225c25c5885250c303c8d118caa08c447ab commit r12-476-gd846f225c25c5885250c303c8d118caa08c447ab Author: Richard Biener <rguent...@suse.de> Date: Tue May 4 15:51:20 2021 +0200 tree-optimization/79333 - fold stmts following SSA edges in VN This makes sure to follow SSA edges when folding eliminated stmts. This reaps the same benefit as forwprop folding all stmts, not waiting for one to produce copysign in the new testcase. 2021-05-04 Richard Biener <rguent...@suse.de> PR tree-optimization/79333 * tree-ssa-sccvn.c (eliminate_dom_walker::eliminate_stmt): Fold stmt following SSA edges. * gcc.dg/tree-ssa/ssa-fre-94.c: New testcase. * gcc.dg/graphite/fuse-1.c: Adjust. * gcc.dg/pr43864-4.c: Likewise.
