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.