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Commit Graph

110 Commits

Author SHA1 Message Date
Devang Patel
67af6cd7ea ExitCondition and Induction variable are loop constraints 
not split condition constraints.

llvm-svn: 40977
 2007-08-10 00:33:50 +00:00
Devang Patel
42e3e5bec1 Traverse loop blocks' terminators to find split candidates. 
llvm-svn: 40960
 2007-08-09 01:39:01 +00:00
Devang Patel
0183c797c4 Add cost analysis. 
llvm-svn: 40952
 2007-08-08 22:25:28 +00:00
Devang Patel
0e34ee25ab Preserve dom info while processing one iteration loop. 
llvm-svn: 40947
 2007-08-08 21:39:47 +00:00
Devang Patel
8abc5c82b7 Clear split info. 
llvm-svn: 40944
 2007-08-08 21:18:27 +00:00
Devang Patel
593bf9ceb3 Handle multiple split conditions. 
llvm-svn: 40941
 2007-08-08 21:02:17 +00:00
Devang Patel
68de1ae816 Embrace patch review feedback. 
llvm-svn: 40915
 2007-08-08 01:51:27 +00:00
Devang Patel
c7e53bdcfd Fix new compare instruction's signness. Caught by Chris during review. 
llvm-svn: 40912
 2007-08-07 23:17:52 +00:00
Devang Patel
19211b6528 Use eraseFromParent(). 
llvm-svn: 40903
 2007-08-07 17:45:35 +00:00
Devang Patel
c70106cb30 Begin loop index split pass. 
llvm-svn: 40883
 2007-08-07 00:25:56 +00:00