https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71333
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
That typically happens if the code invokes undefined behavior in the loop.
Try e.g. to compile it with -fsanitize=undefined and/or -fsanitize=address or
-fno-aggressive-loop-optimizations.
