https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90839
Andrew Carlotti <acarlotti at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |acarlotti at gcc dot gnu.org
--- Comment #5 from Andrew Carlotti <acarlotti at gcc dot gnu.org> ---
This pattern is recognized for unsigned induction variables as of
r13-5193-gd347fbf774dc50. For signed induction variables the loop might be
infinite (if the induction variable is negative), so the code in
tree-ssa-loop-niter:is_rshift_by_1() currently ignores this case.
