diff options
Diffstat (limited to 'lib/Target/Mips/MipsISelLowering.cpp')
| -rw-r--r-- | lib/Target/Mips/MipsISelLowering.cpp | 76 |
1 files changed, 75 insertions, 1 deletions
diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp index 1793a0fa21..04d4743b35 100644 --- a/lib/Target/Mips/MipsISelLowering.cpp +++ b/lib/Target/Mips/MipsISelLowering.cpp @@ -288,6 +288,15 @@ MipsTargetLowering(MipsTargetMachine &TM) setTruncStoreAction(MVT::i64, MVT::i32, Custom); } + // @LOCALMOD-BEGIN + if (Subtarget->isTargetNaCl()) { + setOperationAction(ISD::NACL_THREAD_STACK_PADDING, MVT::i32, Custom); + setOperationAction(ISD::NACL_TP_ALIGN, MVT::i32, Custom); + setOperationAction(ISD::NACL_TP_TLS_OFFSET, MVT::i32, Custom); + setOperationAction(ISD::NACL_TP_TDB_OFFSET, MVT::i32, Custom); + } + // @LOCALMOD-END + setTargetDAGCombine(ISD::ADDE); setTargetDAGCombine(ISD::SUBE); setTargetDAGCombine(ISD::SDIVREM); @@ -313,7 +322,7 @@ bool MipsTargetLowering::allowsUnalignedMemoryAccesses(EVT VT) const { case MVT::i32: return true; case MVT::f32: - return Subtarget->hasMips32r2Or64(); + return Subtarget->hasMips32r2Or64() && !Subtarget->isTargetNaCl()/*@LOCALMOD*/; default: return false; } @@ -781,6 +790,14 @@ LowerOperation(SDValue Op, SelectionDAG &DAG) const case ISD::SRL_PARTS: return LowerShiftRightParts(Op, DAG, false); case ISD::LOAD: return LowerLOAD(Op, DAG); case ISD::STORE: return LowerSTORE(Op, DAG); + + // @LOCALMOD-BEGIN + case ISD::NACL_THREAD_STACK_PADDING: + return LowerNaClThreadStackPadding(Op, DAG); + case ISD::NACL_TP_ALIGN: return LowerNaClTpAlign(Op, DAG); + case ISD::NACL_TP_TLS_OFFSET: return LowerNaClTpTlsOffset(Op, DAG); + case ISD::NACL_TP_TDB_OFFSET: return LowerNaClTpTdbOffset(Op, DAG); + // @LOCALMOD-END } return SDValue(); } @@ -1633,6 +1650,35 @@ SDValue MipsTargetLowering::LowerBlockAddress(SDValue Op, return DAG.getNode(ISD::ADD, dl, ValTy, Load, Lo); } +// @LOCALMOD-BEGIN + +// NaCl TLS setup / layout intrinsics. +// See: native_client/src/untrusted/nacl/tls_params.h + +SDValue MipsTargetLowering::LowerNaClThreadStackPadding(SDValue Op, + SelectionDAG &DAG) const { + return DAG.getConstant(0, Op.getValueType().getSimpleVT()); +} + +SDValue MipsTargetLowering::LowerNaClTpAlign(SDValue Op, + SelectionDAG &DAG) const { + return DAG.getConstant(4, Op.getValueType().getSimpleVT()); +} + +SDValue MipsTargetLowering::LowerNaClTpTlsOffset(SDValue Op, + SelectionDAG &DAG) const { + return DAG.getConstant(0, Op.getValueType().getSimpleVT()); +} + +SDValue MipsTargetLowering::LowerNaClTpTdbOffset(SDValue Op, + SelectionDAG &DAG) const { + DebugLoc dl = Op.getDebugLoc(); + return DAG.getNode(ISD::SUB, dl, Op.getValueType().getSimpleVT(), + DAG.getConstant(0, Op.getValueType().getSimpleVT()), + Op.getOperand(0)); +} +// @LOCALMOD-END + SDValue MipsTargetLowering:: LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const { @@ -1647,6 +1693,34 @@ LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const TLSModel::Model model = getTargetMachine().getTLSModel(GV); + // @LOCALMOD-BEGIN + if (getTargetMachine().getSubtarget<MipsSubtarget>().isTargetNaCl()) { + SDVTList VTs = DAG.getVTList(MVT::i32); + SDValue TGAHi = DAG.getTargetGlobalAddress(GV, dl, MVT::i32, 0, + MipsII::MO_TPREL_HI); + SDValue TGALo = DAG.getTargetGlobalAddress(GV, dl, MVT::i32, 0, + MipsII::MO_TPREL_LO); + SDValue Hi = DAG.getNode(MipsISD::Hi, dl, VTs, &TGAHi, 1); + SDValue Lo = DAG.getNode(MipsISD::Lo, dl, MVT::i32, TGALo); + SDValue Offset = DAG.getNode(ISD::ADD, dl, MVT::i32, Hi, Lo); + + unsigned PtrSize = PtrVT.getSizeInBits(); + IntegerType *PtrTy = Type::getIntNTy(*DAG.getContext(), PtrSize); + + SDValue TlsGetAddr = DAG.getExternalSymbol("__tls_get_addr", PtrVT); + + ArgListTy Args; + std::pair<SDValue, SDValue> CallResult = + LowerCallTo(DAG.getEntryNode(), + (Type *) Type::getInt32Ty(*DAG.getContext()), + false, false, false, false, 0, CallingConv::C, false, + false, true, TlsGetAddr, Args, DAG, dl); + + SDValue ThreadPointer = CallResult.first; + return DAG.getNode(ISD::ADD, dl, PtrVT, ThreadPointer, Offset); + } + // @LOCALMOD-END + if (model == TLSModel::GeneralDynamic || model == TLSModel::LocalDynamic) { // General Dynamic and Local Dynamic TLS Model. unsigned Flag = (model == TLSModel::LocalDynamic) ? MipsII::MO_TLSLDM |