https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113434
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |rguenth at gcc dot gnu.org
Priority|P3 |P2
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
It needs LIM (store-motion) to make 'a' a register inside the loop but that
runs after VRP1, the next VRP only runs after SCCP and also IVOPTs which
confuses it. With -fno-ivopts it's OK but still too late for SCCP.
Thus, a pass ordering issue between LIM / VRP and a missed VRP after IVOPTs
obfuscation.
We might want to consider doing store-motion even earlier ...
