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Fix a comment. Induction vars dont need to start at zero. 

llvm-svn: 173061
This commit is contained in:
Nadav Rotem 2013-01-21 17:59:18 +00:00
parent 8d3e797444
commit b2e7e7a0b6
1 changed files with 1 additions and 1 deletions
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2
llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
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@ -2562,7 +2562,7 @@ LoopVectorizationLegality::isInductionVariable(PHINode *Phi) {
if (!PhiTy->isIntegerTy() && !PhiTy->isPointerTy()) if (!PhiTy->isIntegerTy() && !PhiTy->isPointerTy())
return IK_NoInduction; return IK_NoInduction;
// Check that the PHI is consecutive and starts at zero. // Check that the PHI is consecutive.
const SCEV *PhiScev = SE->getSCEV(Phi); const SCEV *PhiScev = SE->getSCEV(Phi);
const SCEVAddRecExpr *AR = dyn_cast<SCEVAddRecExpr>(PhiScev); const SCEVAddRecExpr *AR = dyn_cast<SCEVAddRecExpr>(PhiScev);
if (!AR) { if (!AR) {