diff options
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp index 8dbf78c270..d6ec50ae16 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp @@ -493,6 +493,11 @@ void SelectionDAGLowering::visitCast(User &I) { if (N.getValueType() == DestTy) { setValue(&I, N); // noop cast. + } else if (DestTy == MVT::i1) { + // Cast to bool is a comparison against zero, not truncation to zero. + SDOperand Zero = isInteger(SrcTy) ? DAG.getConstant(0, N.getValueType()) : + DAG.getConstantFP(0.0, N.getValueType()); + setValue(&I, DAG.getSetCC(ISD::SETNE, MVT::i1, N, Zero)); } else if (isInteger(SrcTy)) { if (isInteger(DestTy)) { // Int -> Int cast if (DestTy < SrcTy) // Truncating cast? |