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Reapply 105540, 105542, and 105548, and revert r105732.
authorDan Gohman <gohman@apple.com>
Fri, 18 Jun 2010 19:26:04 +0000 (19:26 +0000)
committerDan Gohman <gohman@apple.com>
Fri, 18 Jun 2010 19:26:04 +0000 (19:26 +0000)
commit78db186d2dbaf4745f7e4beab4029db40856b54b
tree62518c4f9f58afe1407ad840269e1d2d5e09a5a0
parentdd76f18f90f3d9934353d852e45271b3be747743
Reapply 105540, 105542, and 105548, and revert r105732.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106304 91177308-0d34-0410-b5e6-96231b3b80d8
include/llvm/Analysis/ScalarEvolution.h
include/llvm/Analysis/ScalarEvolutionExpressions.h
lib/Analysis/ScalarEvolution.cpp
test/Analysis/ScalarEvolution/2008-07-29-SMinExpr.ll