http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50764
Michael Matz <matz at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |matz at gcc dot gnu.org
--- Comment #11 from Michael Matz <matz at gcc dot gnu.org> 2011-11-21 16:23:00
UTC ---
That sched2 moves frame related instructions into paths that didn't have
them before seems dubious. The assert is correct in sofar as triggering
implies generating wrong unwind info: Depending on if bb5 (the abort) would
be placed after or before bb 3, it would have wrong unwind info for the
path 2->5 (CFA would be r10, but it wouldn't be set up) or 3->5 (CFA would
be r6, but due to the push at the wrong offset).
I think the dead-label moving just exposes the bug in sched2.
