caio/clang-p2996
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102 Commits

Author SHA1 Message Date
Nick Lewycky
5f8f9af65c Move to using the EquivalenceClass ADT. Removes SynSets. 
If a branch's condition has become a ConstantBool, simplify it immediately.
Removing the edge saves work and exposes up more optimization opportunities
in the pass.
Add support for SelectInst.

llvm-svn: 29970
 2006-08-30 02:46:48 +00:00
Nick Lewycky
b2e8ae1700 Add PredicateSimplifier pass. Collapses equal variables into one form 
and simplifies expressions. This implements the optimization described
in PR807.

llvm-svn: 29947
 2006-08-28 22:44:55 +00:00