https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89435
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |7.5 Summary|wrong code with -O1 |[7/8/9 Regression] wrong |-march=armv4 |code with -O1 -march=armv4 |-fno-forward-propagate with |-fno-forward-propagate with |__builtin_sub_overflow() |__builtin_sub_overflow() --- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Bisecting now, from skimming of what combiner does r242085 was still ok and r242439 already not. But don't have a setup where can I actually run -march=armv4 code.