https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103317
Peter Bergner <bergner at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |rguenth at gcc dot gnu.org
--- Comment #4 from Peter Bergner <bergner at gcc dot gnu.org> ---
My bisect flagged the following commit as causing the ICE:
commit f98f373dd822b35c52356b753d528924e9f89678
Commit: Richard Biener <rguent...@suse.de>
CommitDate: Tue Nov 16 11:31:05 2021 +0100
tree-optimization/102880 - make PHI-OPT recognize more CFGs
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This allows extra edges into the middle BB for the PHI-OPT
transforms using replace_phi_edge_with_variable that do not
end up moving stmts from that middle BB. This avoids regressing
gcc.dg/tree-ssa/ssa-hoist-4.c with the actual fix for PR102880
where CFG cleanup has the choice to remove two forwarders and
picks "the wrong" leading to
