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Author SHA1 Message Date
Devang Patel
cd40233429 While handling floating point IVs lift restrictions on initial value and increment value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59471 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-17 23:27:13 +00:00
Devang Patel
58d43d4a41 Turn floating point IVs into integer IVs where possible. 
This allows SCEV users to effectively calculate trip count.
LSR later on transforms back integer IVs to floating point IVs
later on to avoid int-to-float casts inside the loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58625 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-03 18:32:19 +00:00