Move LSR's private isZero function to a public SCEV member
authorDan Gohman <gohman@apple.com>
Wed, 18 Jun 2008 16:23:07 +0000 (16:23 +0000)
committerDan Gohman <gohman@apple.com>
Wed, 18 Jun 2008 16:23:07 +0000 (16:23 +0000)
commitcfeb6a450632f2a6cd05302633c8c2b8c90cfdfd
treecce837286c2b0aac98e2442e475309248f7a24c4
parenta9c0f2b03f795b4d09768e6b08dd8a3614e872c5
Move LSR's private isZero function to a public SCEV member
function, and make use of it in several places.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52463 91177308-0d34-0410-b5e6-96231b3b80d8
include/llvm/Analysis/ScalarEvolution.h
lib/Analysis/ScalarEvolution.cpp
lib/Analysis/ScalarEvolutionExpander.cpp
lib/Transforms/Scalar/LoopStrengthReduce.cpp