diff options
Diffstat (limited to 'lib/Transforms/Scalar/IndVarSimplify.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/IndVarSimplify.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/Transforms/Scalar/IndVarSimplify.cpp b/lib/Transforms/Scalar/IndVarSimplify.cpp index 5c4c63be5b..7c1f1161f5 100644 --- a/lib/Transforms/Scalar/IndVarSimplify.cpp +++ b/lib/Transforms/Scalar/IndVarSimplify.cpp @@ -607,9 +607,9 @@ void IndVarSimplify::runOnLoop(Loop *L) { // variable. Doing so will put expensive multiply instructions inside // of the loop. For now just disable indvar subst on anything more // complex than a linear addrec. - if (!isa<SCEVAddRecExpr>(SCEV) || - cast<SCEVAddRecExpr>(SCEV)->getNumOperands() < 3) - IndVars.push_back(std::make_pair(PN, SCEV)); + if (SCEVAddRecExpr *AR = dyn_cast<SCEVAddRecExpr>(SCEV)) + if (AR->getNumOperands() == 2 && isa<SCEVConstant>(AR->getOperand(1))) + IndVars.push_back(std::make_pair(PN, SCEV)); } // If there are no induction variables in the loop, there is nothing more to |