Andrew Trick e5bb7267ff [regcoalescing] bug fix for RegistersDefinedFromSameValue.
An improper SlotIndex->VNInfo lookup was leading to unsafe copy removal.
Fixes PR10920 401.bzip2 miscompile with no IV rewrite.

llvm-svn: 139765
2011-09-15 01:09:33 +00:00
..
2011-09-12 17:32:58 +00:00