diff options
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 55dcbd9ffd..277f696dcb 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -1043,10 +1043,23 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { switch (getTypeAction(Node->getOperand(1).getValueType())) { case Legal: Tmp2 = LegalizeOp(Node->getOperand(1)); - if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1) || - Tmp3 != Node->getOperand(2)) + + // The only promote case we handle is TRUNCSTORE:i1 X into + // -> TRUNCSTORE:i8 (and X, 1) + if (cast<VTSDNode>(Node->getOperand(4))->getVT() == MVT::i1 && + TLI.getOperationAction(ISD::TRUNCSTORE, MVT::i1) == + TargetLowering::Promote) { + // Promote the bool to a mask then store. + Tmp2 = DAG.getNode(ISD::AND, Tmp2.getValueType(), Tmp2, + DAG.getConstant(1, Tmp2.getValueType())); + Result = DAG.getNode(ISD::TRUNCSTORE, MVT::Other, Tmp1, Tmp2, Tmp3, + Node->getOperand(3), DAG.getValueType(MVT::i8)); + + } else if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1) || + Tmp3 != Node->getOperand(2)) { Result = DAG.getNode(ISD::TRUNCSTORE, MVT::Other, Tmp1, Tmp2, Tmp3, Node->getOperand(3), Node->getOperand(4)); + } break; case Promote: case Expand: |