https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86526
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- With -O1: void foo () { if (__builtin_memcmp(a, "\0a", 3)) __builtin_abort(); } ICEs too, so it is a regression.