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109 Commits

Author SHA1 Message Date
Owen Anderson a1cd45213d As Chris and Evan pointed out, BreakCriticalMachineEdges doesn't really need 
to be a pass of its own.  Instead, move it out into a helper method.

llvm-svn: 44002
 2007-11-12 01:05:09 +00:00
Owen Anderson bfbc12973d Take another stab at getting isLiveIn() and isLiveOut() right. 
llvm-svn: 43869
 2007-11-08 01:32:45 +00:00
Owen Anderson c6a5387d09 Add some more of StrongPHIElim. 
llvm-svn: 43805
 2007-11-07 05:17:15 +00:00
Owen Anderson d378cea030 Add a few comments. 
llvm-svn: 43755
 2007-11-06 05:26:02 +00:00
Owen Anderson eb964eb2c8 DomForest is a forest of registers, not instructions. 
llvm-svn: 43754
 2007-11-06 05:22:43 +00:00
Owen Anderson a9057f0b97 StrongPHIElimination requires LiveVariables. 
llvm-svn: 43751
 2007-11-06 04:49:43 +00:00
Owen Anderson eea82746b3 Another step of stronger PHI elimination down. 
llvm-svn: 43684
 2007-11-04 22:33:26 +00:00
Duncan Sands 21ca939683 Add a newline at the end of the file. 
llvm-svn: 43550
 2007-10-31 08:49:24 +00:00
Owen Anderson 0b59fa0605 Add the skeleton of a better PHI elimination pass. 
llvm-svn: 43542
 2007-10-31 03:37:57 +00:00