https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123602
--- Comment #6 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-15 branch has been updated by Richard Biener <[email protected]>: https://gcc.gnu.org/g:b543575768c3d82711660f7e18b94971ff5fc325 commit r15-10726-gb543575768c3d82711660f7e18b94971ff5fc325 Author: Richard Biener <[email protected]> Date: Mon Jan 19 10:21:10 2026 +0100 tree-optimization/123602 - avoid PRE-inserting abnormal SSA refs The following fixes an omission in find_or_generate_expression to check for SSA_NAME_OCCURS_IN_ABNORMAL_PHI as already done in create_expression_by_pieces. PR tree-optimization/123602 * tree-ssa-pre.cc (find_or_generate_expression): Do not generate references to abnormal SSA names. * g++.dg/torture/pr123603.C: New testcase. (cherry picked from commit 134bc017ebac60eb53166998ec7efbc2e7f7e3b5)
