https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111407
--- Comment #7 from qinzhao at gcc dot gnu.org --- (In reply to Andrew Pinski from comment #5) > Testcase: thanks a lot for the testing case. GCC8 failed with this, disable tree-widening_mul fixed the failure. and my patch for GCC8 also fixed the failure. will test GCC14 as well.