https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116290
--- Comment #9 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-13 branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:a1bdcba603d79b4c20acd668ce056a586c4ab77a commit r13-9314-ga1bdcba603d79b4c20acd668ce056a586c4ab77a Author: Richard Biener <rguent...@suse.de> Date: Sun Oct 13 15:12:44 2024 +0200 tree-optimization/116290 - fix compare-debug issue in ldist Loop distribution does different analysis with -g0/-g due to counting a debug stmt starting a BB against a limit which will everntually lead to different IVOPTs choices. I've fixed a possible IVOPTs issue on the way even though it doesn't make a difference here. PR tree-optimization/116290 * tree-loop-distribution.cc (determine_reduction_stmt_1): PHIs have no debug variants. Start with first non-debug real stmt. * tree-ssa-loop-ivopts.cc (find_givs_in_bb): Do not analyze debug stmts. * gcc.dg/pr116290.c: New testcase. (cherry picked from commit 566740013b3445162b8c4bc2205e4e568d014968)