diff options
Diffstat (limited to 'lib/CodeGen/SelectionDAG/LegalizeDAG.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index e86c719676..c80b125228 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -3143,18 +3143,32 @@ SDValue SelectionDAGLegalize::LegalizeOp(SDValue Op) { case TargetLowering::Legal: break; case TargetLowering::Expand: { assert((Tmp2.getValueType() == MVT::f32 || - Tmp2.getValueType() == MVT::f64) && isTypeLegal(MVT::i32) && + Tmp2.getValueType() == MVT::f64) && "Ugly special-cased code!"); // Get the sign bit of the RHS. - SDValue StackPtr = DAG.CreateStackTemporary(Tmp2.getValueType()); - SDValue Ch = DAG.getStore(DAG.getEntryNode(), dl, Tmp2, StackPtr, NULL, - 0); - if (Tmp2.getValueType() == MVT::f64 && TLI.isLittleEndian()) - StackPtr = DAG.getNode(ISD::ADD, dl, StackPtr.getValueType(), - StackPtr, DAG.getIntPtrConstant(4)); - SDValue SignBit = DAG.getLoad(MVT::i32, dl, Ch, StackPtr, NULL, 0); - SignBit = DAG.getSetCC(dl, TLI.getSetCCResultType(MVT::i32), - SignBit, DAG.getConstant(0, MVT::i32), ISD::SETLT); + SDValue SignBit; + MVT IVT = Tmp2.getValueType() == MVT::f64 ? MVT::i64 : MVT::i32; + if (isTypeLegal(IVT)) { + SignBit = DAG.getNode(ISD::BIT_CONVERT, dl, IVT, Tmp2); + } else { + assert(isTypeLegal(TLI.getPointerTy()) && + (TLI.getPointerTy() == MVT::i32 || + TLI.getPointerTy() == MVT::i64) && + "Legal type for load?!"); + SDValue StackPtr = DAG.CreateStackTemporary(Tmp2.getValueType()); + SDValue StorePtr = StackPtr, LoadPtr = StackPtr; + SDValue Ch = + DAG.getStore(DAG.getEntryNode(), dl, Tmp2, StorePtr, NULL, 0); + if (Tmp2.getValueType() == MVT::f64 && TLI.isLittleEndian()) + LoadPtr = DAG.getNode(ISD::ADD, dl, StackPtr.getValueType(), + LoadPtr, DAG.getIntPtrConstant(4)); + SignBit = DAG.getExtLoad(ISD::SEXTLOAD, dl, TLI.getPointerTy(), + Ch, LoadPtr, NULL, 0, MVT::i32); + } + SignBit = + DAG.getSetCC(dl, TLI.getSetCCResultType(SignBit.getValueType()), + SignBit, DAG.getConstant(0, SignBit.getValueType()), + ISD::SETLT); // Get the absolute value of the result. SDValue AbsVal = DAG.getNode(ISD::FABS, dl, Tmp1.getValueType(), Tmp1); // Select between the nabs and abs value based on the sign bit of |