diff options
Diffstat (limited to 'contrib/llvm/lib/Target/Hexagon/HexagonISelLowering.cpp')
| -rw-r--r-- | contrib/llvm/lib/Target/Hexagon/HexagonISelLowering.cpp | 42 |
1 files changed, 30 insertions, 12 deletions
diff --git a/contrib/llvm/lib/Target/Hexagon/HexagonISelLowering.cpp b/contrib/llvm/lib/Target/Hexagon/HexagonISelLowering.cpp index 15858a9..0e5b8dc 100644 --- a/contrib/llvm/lib/Target/Hexagon/HexagonISelLowering.cpp +++ b/contrib/llvm/lib/Target/Hexagon/HexagonISelLowering.cpp @@ -1002,14 +1002,6 @@ HexagonTargetLowering::LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const { return FrameAddr; } - -SDValue HexagonTargetLowering::LowerMEMBARRIER(SDValue Op, - SelectionDAG& DAG) const { - DebugLoc dl = Op.getDebugLoc(); - return DAG.getNode(HexagonISD::BARRIER, dl, MVT::Other, Op.getOperand(0)); -} - - SDValue HexagonTargetLowering::LowerATOMIC_FENCE(SDValue Op, SelectionDAG& DAG) const { DebugLoc dl = Op.getDebugLoc(); @@ -1361,7 +1353,6 @@ HexagonTargetLowering::HexagonTargetLowering(HexagonTargetMachine } - setOperationAction(ISD::BRIND, MVT::Other, Expand); if (EmitJumpTables) { setOperationAction(ISD::BR_JT, MVT::Other, Custom); } else { @@ -1377,7 +1368,6 @@ HexagonTargetLowering::HexagonTargetLowering(HexagonTargetMachine setOperationAction(ISD::BR_CC, MVT::i32, Expand); setOperationAction(ISD::BR_CC, MVT::i64, Expand); - setOperationAction(ISD::MEMBARRIER, MVT::Other, Custom); setOperationAction(ISD::ATOMIC_FENCE, MVT::Other, Custom); setOperationAction(ISD::FSIN , MVT::f64, Expand); @@ -1444,7 +1434,7 @@ HexagonTargetLowering::HexagonTargetLowering(HexagonTargetMachine setOperationAction(ISD::EXCEPTIONADDR, MVT::i32, Expand); setOperationAction(ISD::EHSELECTION, MVT::i32, Expand); - setOperationAction(ISD::EH_RETURN, MVT::Other, Expand); + setOperationAction(ISD::EH_RETURN, MVT::Other, Custom); if (TM.getSubtargetImpl()->isSubtargetV2()) { setExceptionPointerRegister(Hexagon::R20); @@ -1499,6 +1489,7 @@ HexagonTargetLowering::getTargetNodeName(unsigned Opcode) const { case HexagonISD::RET_FLAG: return "HexagonISD::RET_FLAG"; case HexagonISD::BR_JT: return "HexagonISD::BR_JT"; case HexagonISD::TC_RETURN: return "HexagonISD::TC_RETURN"; + case HexagonISD::EH_RETURN: return "HexagonISD::EH_RETURN"; } } @@ -1520,16 +1511,43 @@ bool HexagonTargetLowering::isTruncateFree(EVT VT1, EVT VT2) const { } SDValue +HexagonTargetLowering::LowerEH_RETURN(SDValue Op, SelectionDAG &DAG) const { + SDValue Chain = Op.getOperand(0); + SDValue Offset = Op.getOperand(1); + SDValue Handler = Op.getOperand(2); + DebugLoc dl = Op.getDebugLoc(); + + // Mark function as containing a call to EH_RETURN. + HexagonMachineFunctionInfo *FuncInfo = + DAG.getMachineFunction().getInfo<HexagonMachineFunctionInfo>(); + FuncInfo->setHasEHReturn(); + + unsigned OffsetReg = Hexagon::R28; + + SDValue StoreAddr = DAG.getNode(ISD::ADD, dl, getPointerTy(), + DAG.getRegister(Hexagon::R30, getPointerTy()), + DAG.getIntPtrConstant(4)); + Chain = DAG.getStore(Chain, dl, Handler, StoreAddr, MachinePointerInfo(), + false, false, 0); + Chain = DAG.getCopyToReg(Chain, dl, OffsetReg, Offset); + + // Not needed we already use it as explict input to EH_RETURN. + // MF.getRegInfo().addLiveOut(OffsetReg); + + return DAG.getNode(HexagonISD::EH_RETURN, dl, MVT::Other, Chain); +} + +SDValue HexagonTargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) const { switch (Op.getOpcode()) { default: llvm_unreachable("Should not custom lower this!"); case ISD::ConstantPool: return LowerConstantPool(Op, DAG); + case ISD::EH_RETURN: return LowerEH_RETURN(Op, DAG); // Frame & Return address. Currently unimplemented. case ISD::RETURNADDR: return LowerRETURNADDR(Op, DAG); case ISD::FRAMEADDR: return LowerFRAMEADDR(Op, DAG); case ISD::GlobalTLSAddress: llvm_unreachable("TLS not implemented for Hexagon."); - case ISD::MEMBARRIER: return LowerMEMBARRIER(Op, DAG); case ISD::ATOMIC_FENCE: return LowerATOMIC_FENCE(Op, DAG); case ISD::GlobalAddress: return LowerGLOBALADDRESS(Op, DAG); case ISD::BlockAddress: return LowerBlockAddress(Op, DAG); |
