https://gcc.gnu.org/bugzilla/show_bug.cgi?id=75964
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |ebotcazou at gcc dot gnu.org
--- Comment #1 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> After pass .combine, the 2nd comparison is missing, presumably because
> combiner invokes signed overflow on ABS which does not apply because all
> computations are performed as unsigned.
Then you should have a warning with -Wstrict-overflow; this possibly comes from
simplify-rtx.c:simplify_const_relational_operation in this case.
