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Author SHA1 Message Date
Michael Ilseman 5485729b9a Identify and simplify idempotent intrinsics. Test case included. 
llvm-svn: 174650
 2013-02-07 19:26:05 +00:00
Chandler Carruth f6182155f6 Teach instsimplify to use the constant folder where appropriate for 
constant folding calls. Add the initial tests for this which show that
now instsimplify can simplify blindingly obvious code patterns expressed
with both intrinsics and library calls.

llvm-svn: 171194
 2012-12-28 14:23:29 +00:00