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3 Commits

Author SHA1 Message Date
Chris Lattner
d06094f068 factor simplification logic for AND and OR out to InstSimplify from instcombine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86635 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 00:55:12 +00:00
Chris Lattner
9dbb42944c rename SimplifyCompare -> SimplifyCmpInst and split it into 
Simplify[IF]Cmp pieces.  Add some predicates to CmpInst to 
determine whether a predicate is fp or int.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86624 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 23:28:39 +00:00
Chris Lattner
9f3c25aeb3 stub out a new libanalysis "instruction simplify" interface that 
takes decimated instructions and applies identities to them.  This
is pretty minimal at this point, but I plan to pull some instcombine
logic out into these and similar routines.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86613 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 22:57:59 +00:00