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use the very-handy getTruncateOrZeroExtend helper function, and
authorChris Lattner <sabre@nondot.org>
Tue, 4 Jan 2011 00:06:55 +0000 (00:06 +0000)
committerChris Lattner <sabre@nondot.org>
Tue, 4 Jan 2011 00:06:55 +0000 (00:06 +0000)
commit7c90b90f4e9b0c421f0e45d7de03f6edce113a90
treee41d639ba8f4b10b84a7af7dfae48e122a1fa14b
parent2c502f915f52aab994fce7d3e78d1d021321d7a5
use the very-handy getTruncateOrZeroExtend helper function, and
stop setting NSW: signed overflow is possible.  Thanks to Dan
for pointing these out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122790 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Transforms/Scalar/LoopIdiomRecognize.cpp