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Step #3 to improving trip count analysis: If we fold
authorChris Lattner <sabre@nondot.org>
Sun, 9 Jan 2011 22:31:26 +0000 (22:31 +0000)
committerChris Lattner <sabre@nondot.org>
Sun, 9 Jan 2011 22:31:26 +0000 (22:31 +0000)
commitad19c8c63cae112a2677c2f5d65717aeba44f8cb
treeceb256c7a5a055278ed5f962644243d463620721tree | snapshot
parent992efb03785f2a368fbb63b09373be1d6a96ce5acommit | diff
Step #3 to improving trip count analysis: If we fold
a + {b,+,stride} into {a+b,+,stride}  (because a is LIV),
then the resultant AddRec is NUW/NSW if the client says it
is.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123133 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Analysis/ScalarEvolution.cpp diff | blob | history
external/llvm
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