diff options
| -rw-r--r-- | lib/CodeGen/CGExprScalar.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/CGExprScalar.cpp b/lib/CodeGen/CGExprScalar.cpp index 0d68ff5a69..0e8afb04d0 100644 --- a/lib/CodeGen/CGExprScalar.cpp +++ b/lib/CodeGen/CGExprScalar.cpp @@ -2045,11 +2045,15 @@ static Value* tryEmitFMulAdd(const BinOpInfo &op, // We have a potentially fusable op. Look for a mul on one of the operands. if (llvm::BinaryOperator* LHSBinOp = dyn_cast<llvm::BinaryOperator>(op.LHS)) { if (LHSBinOp->getOpcode() == llvm::Instruction::FMul) { + assert(LHSBinOp->getNumUses() == 0 && + "Operations with multiple uses shouldn't be contracted."); return buildFMulAdd(LHSBinOp, op.RHS, CGF, Builder, false, isSub); } } else if (llvm::BinaryOperator* RHSBinOp = dyn_cast<llvm::BinaryOperator>(op.RHS)) { if (RHSBinOp->getOpcode() == llvm::Instruction::FMul) { + assert(RHSBinOp->getNumUses() == 0 && + "Operations with multiple uses shouldn't be contracted."); return buildFMulAdd(RHSBinOp, op.LHS, CGF, Builder, isSub, false); } } |