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-rw-r--r--lib/Analysis/ScalarEvolution.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp
index ec98adc9e2..bc1f9a0d30 100644
--- a/lib/Analysis/ScalarEvolution.cpp
+++ b/lib/Analysis/ScalarEvolution.cpp
@@ -2151,6 +2151,8 @@ SolveQuadraticEquation(const SCEVAddRecExpr *AddRec) {
Constant *TwoA = ConstantExpr::getMul(A, Two);
// The divisions must be performed as signed divisions.
+ // FIXME:Signedness. These casts can all go away once integer types are
+ // signless.
const Type *SignedTy = NegB->getType()->getSignedVersion();
NegB = ConstantExpr::getBitCast(NegB, SignedTy);
TwoA = ConstantExpr::getBitCast(TwoA, SignedTy);