https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114027
--- Comment #23 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-11 branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:b6a029286d5034d63063ae78f406ba677c37d015 commit r11-11520-gb6a029286d5034d63063ae78f406ba677c37d015 Author: Richard Biener <rguent...@suse.de> Date: Thu Feb 22 10:50:12 2024 +0100 tree-optimization/114027 - conditional reduction chain When we classify a conditional reduction chain as CONST_COND_REDUCTION we fail to verify all involved conditionals have the same constant. That's a quite unlikely situation so the following simply disables such classification when there's more than one reduction statement. PR tree-optimization/114027 * tree-vect-loop.c (vecctorizable_reduction): Use optimized condition reduction classification only for single-element chains. * gcc.dg/vect/pr114027.c: New testcase. (cherry picked from commit 549f251f055e3a0b0084189a3012c4f15d635e75) --- Comment #24 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-11 branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:70ebb2ecbbcdfc40e0beff95dd11c9d678694888 commit r11-11521-g70ebb2ecbbcdfc40e0beff95dd11c9d678694888 Author: Richard Biener <rguent...@suse.de> Date: Tue Mar 26 09:46:06 2024 +0100 tree-optimization/114027 - fix testcase The following fixes out-of-bounds read in the testcase. PR tree-optimization/114027 * gcc.dg/vect/pr114027.c: Fix iteration count. (cherry picked from commit 4470611e20f3217ee81647b01fda65b6a62229aa)
