diff options
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 996f116f8d..4d6d0ebaca 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -424,6 +424,31 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. Tmp2 = LegalizeOp(Node->getOperand(2)); // Legalize the pointer. + // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' + if (ConstantFPSDNode *CFP = + dyn_cast<ConstantFPSDNode>(Node->getOperand(1))) { + if (CFP->getValueType(0) == MVT::f32) { + union { + unsigned I; + float F; + } V; + V.F = CFP->getValue(); + Result = DAG.getNode(ISD::STORE, MVT::Other, Tmp1, + DAG.getConstant(V.I, MVT::i32), Tmp2); + } else { + assert(CFP->getValueType(0) == MVT::f64 && "Unknown FP type!"); + union { + uint64_t I; + double F; + } V; + V.F = CFP->getValue(); + Result = DAG.getNode(ISD::STORE, MVT::Other, Tmp1, + DAG.getConstant(V.I, MVT::i64), Tmp2); + } + Op = Result; + Node = Op.Val; + } + switch (getTypeAction(Node->getOperand(1).getValueType())) { case Legal: { SDOperand Val = LegalizeOp(Node->getOperand(1)); |