http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54300
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |ebotcazou at gcc dot gnu.org
--- Comment #10 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> and regcprop substitues d19 for d18 in insn 27, missing the fact that insn
> 73 is swapping the two values (thus clobbering the old d19 value).
It's probably fooled by single_set returning the first set of the insn because
of the REG_UNUSED note. I wonder whether it's a generic pitfall of single_set.
