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Author SHA1 Message Date
Andrew Trick 31004375fc Test case trial and error. Not sure the proper way to check MBB names. 
llvm-svn: 139900
 2011-09-16 03:57:19 +00:00
Andrew Trick b57d9c38a2 Reduced a stronger test case for coalescer bug PR10920. 
llvm-svn: 139898
 2011-09-16 03:46:49 +00:00
Andrew Trick 76a86d3d4c [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