On 06/03/2011 04:47 PM, Alexandre Oliva wrote: > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=677681 can be > “fixed” by disabling the artificial dependency of a debug insn on its > previous insn. > > Debug insns will often depend on their prevs anyway, in a use/def > relationship, but if the def was (re)moved or the use was reset, this > artificial dep helped keep the debug insn “in place”. > > Being a very imperfect heuristic, it's not clear that it helps more than > it harms. Thoughts? Regstrapped on x86_64-linux-gnu and > i686-linux-gnu.
Can you explain a little more clearly what the problem is? The RH bugzilla isn't really clear. Bernd
