https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123604
Richard Earnshaw <rearnsha at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |segher at gcc dot gnu.org
--- Comment #12 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
So we either need to teach combine how to rewrite multiple condition-code using
patterns (probably very hard, given the need to retain undo capability in case
of failure), or we need to defer creating multiple conditional instructions
prior to combine, or we need to accept this regression.
Adding Segher for his thoughts, but my gut feeling is that we need to disable
this level of CE until after combine has run.
