#include "MipsISelLowering.h"
#include "InstPrinter/MipsInstPrinter.h"
#include "MCTargetDesc/MipsBaseInfo.h"
+#include "MipsCCState.h"
#include "MipsMachineFunction.h"
#include "MipsSubtarget.h"
#include "MipsTargetMachine.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineJumpTableInfo.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
+#include "llvm/CodeGen/FunctionLoweringInfo.h"
#include "llvm/CodeGen/SelectionDAGISel.h"
#include "llvm/CodeGen/ValueTypes.h"
#include "llvm/IR/CallingConv.h"
cl::desc("MIPS: Don't trap on integer division by zero."),
cl::init(false));
-cl::opt<bool>
-EnableMipsFastISel("mips-fast-isel", cl::Hidden,
- cl::desc("Allow mips-fast-isel to be used"),
- cl::init(false));
-
-static const MCPhysReg O32IntRegs[4] = {
- Mips::A0, Mips::A1, Mips::A2, Mips::A3
-};
-
-static const MCPhysReg Mips64IntRegs[8] = {
- Mips::A0_64, Mips::A1_64, Mips::A2_64, Mips::A3_64,
- Mips::T0_64, Mips::T1_64, Mips::T2_64, Mips::T3_64
-};
-
static const MCPhysReg Mips64DPRegs[8] = {
Mips::D12_64, Mips::D13_64, Mips::D14_64, Mips::D15_64,
Mips::D16_64, Mips::D17_64, Mips::D18_64, Mips::D19_64
};
-static bool originalTypeIsF128(const Type *Ty, const SDNode *CallNode);
-
-namespace {
-class MipsCCState : public CCState {
-private:
- /// Identify lowered values that originated from f128 arguments and record
- /// this for use by RetCC_MipsN.
- void
- PreAnalyzeCallResultForF128(const SmallVectorImpl<ISD::InputArg> &Ins,
- const TargetLowering::CallLoweringInfo &CLI) {
- for (unsigned i = 0; i < Ins.size(); ++i)
- OriginalArgWasF128.push_back(
- originalTypeIsF128(CLI.RetTy, CLI.Callee.getNode()));
- }
-
- /// Identify lowered values that originated from f128 arguments and record
- /// this for use by RetCC_MipsN.
- void PreAnalyzeReturnForF128(const SmallVectorImpl<ISD::OutputArg> &Outs) {
- const MachineFunction &MF = getMachineFunction();
- for (unsigned i = 0; i < Outs.size(); ++i)
- OriginalArgWasF128.push_back(
- originalTypeIsF128(MF.getFunction()->getReturnType(), nullptr));
- }
-
- /// Records whether the value has been lowered from an f128.
- SmallVector<bool, 4> OriginalArgWasF128;
-
-public:
- MipsCCState(CallingConv::ID CC, bool isVarArg, MachineFunction &MF,
- SmallVectorImpl<CCValAssign> &locs, LLVMContext &C)
- : CCState(CC, isVarArg, MF, locs, C) {}
-
- void AnalyzeCallResult(const SmallVectorImpl<ISD::InputArg> &Ins,
- CCAssignFn Fn,
- const TargetLowering::CallLoweringInfo &CLI) {
- PreAnalyzeCallResultForF128(Ins, CLI);
- CCState::AnalyzeCallResult(Ins, Fn);
- OriginalArgWasF128.clear();
- }
-
- void AnalyzeReturn(const SmallVectorImpl<ISD::OutputArg> &Outs,
- CCAssignFn Fn) {
- PreAnalyzeReturnForF128(Outs);
- CCState::AnalyzeReturn(Outs, Fn);
- OriginalArgWasF128.clear();
- }
-
- bool CheckReturn(const SmallVectorImpl<ISD::OutputArg> &ArgsFlags,
- CCAssignFn Fn) {
- PreAnalyzeReturnForF128(ArgsFlags);
- bool Return = CCState::CheckReturn(ArgsFlags, Fn);
- OriginalArgWasF128.clear();
- return Return;
- }
-
- bool WasOriginalArgF128(unsigned ValNo) { return OriginalArgWasF128[ValNo]; }
-};
-}
-
// If I is a shifted mask, set the size (Size) and the first bit of the
// mask (Pos), and return true.
// For example, if I is 0x003ff800, (Pos, Size) = (11, 11).
if (!isShiftedMask_64(I))
return false;
- Size = CountPopulation_64(I);
+ Size = countPopulation(I);
Pos = countTrailingZeros(I);
return true;
}
}
const char *MipsTargetLowering::getTargetNodeName(unsigned Opcode) const {
- switch (Opcode) {
+ switch ((MipsISD::NodeType)Opcode) {
+ case MipsISD::FIRST_NUMBER: break;
case MipsISD::JmpLink: return "MipsISD::JmpLink";
case MipsISD::TailCall: return "MipsISD::TailCall";
case MipsISD::Hi: return "MipsISD::Hi";
case MipsISD::GPRel: return "MipsISD::GPRel";
case MipsISD::ThreadPointer: return "MipsISD::ThreadPointer";
case MipsISD::Ret: return "MipsISD::Ret";
+ case MipsISD::ERet: return "MipsISD::ERet";
case MipsISD::EH_RETURN: return "MipsISD::EH_RETURN";
case MipsISD::FPBrcond: return "MipsISD::FPBrcond";
case MipsISD::FPCmp: return "MipsISD::FPCmp";
case MipsISD::BuildPairF64: return "MipsISD::BuildPairF64";
case MipsISD::ExtractElementF64: return "MipsISD::ExtractElementF64";
case MipsISD::Wrapper: return "MipsISD::Wrapper";
+ case MipsISD::DynAlloc: return "MipsISD::DynAlloc";
case MipsISD::Sync: return "MipsISD::Sync";
case MipsISD::Ext: return "MipsISD::Ext";
case MipsISD::Ins: return "MipsISD::Ins";
case MipsISD::EXTR_RS_W: return "MipsISD::EXTR_RS_W";
case MipsISD::SHILO: return "MipsISD::SHILO";
case MipsISD::MTHLIP: return "MipsISD::MTHLIP";
+ case MipsISD::MULSAQ_S_W_PH: return "MipsISD::MULSAQ_S_W_PH";
+ case MipsISD::MAQ_S_W_PHL: return "MipsISD::MAQ_S_W_PHL";
+ case MipsISD::MAQ_S_W_PHR: return "MipsISD::MAQ_S_W_PHR";
+ case MipsISD::MAQ_SA_W_PHL: return "MipsISD::MAQ_SA_W_PHL";
+ case MipsISD::MAQ_SA_W_PHR: return "MipsISD::MAQ_SA_W_PHR";
+ case MipsISD::DPAU_H_QBL: return "MipsISD::DPAU_H_QBL";
+ case MipsISD::DPAU_H_QBR: return "MipsISD::DPAU_H_QBR";
+ case MipsISD::DPSU_H_QBL: return "MipsISD::DPSU_H_QBL";
+ case MipsISD::DPSU_H_QBR: return "MipsISD::DPSU_H_QBR";
+ case MipsISD::DPAQ_S_W_PH: return "MipsISD::DPAQ_S_W_PH";
+ case MipsISD::DPSQ_S_W_PH: return "MipsISD::DPSQ_S_W_PH";
+ case MipsISD::DPAQ_SA_L_W: return "MipsISD::DPAQ_SA_L_W";
+ case MipsISD::DPSQ_SA_L_W: return "MipsISD::DPSQ_SA_L_W";
+ case MipsISD::DPA_W_PH: return "MipsISD::DPA_W_PH";
+ case MipsISD::DPS_W_PH: return "MipsISD::DPS_W_PH";
+ case MipsISD::DPAQX_S_W_PH: return "MipsISD::DPAQX_S_W_PH";
+ case MipsISD::DPAQX_SA_W_PH: return "MipsISD::DPAQX_SA_W_PH";
+ case MipsISD::DPAX_W_PH: return "MipsISD::DPAX_W_PH";
+ case MipsISD::DPSX_W_PH: return "MipsISD::DPSX_W_PH";
+ case MipsISD::DPSQX_S_W_PH: return "MipsISD::DPSQX_S_W_PH";
+ case MipsISD::DPSQX_SA_W_PH: return "MipsISD::DPSQX_SA_W_PH";
+ case MipsISD::MULSA_W_PH: return "MipsISD::MULSA_W_PH";
case MipsISD::MULT: return "MipsISD::MULT";
case MipsISD::MULTU: return "MipsISD::MULTU";
case MipsISD::MADD_DSP: return "MipsISD::MADD_DSP";
case MipsISD::PCKEV: return "MipsISD::PCKEV";
case MipsISD::PCKOD: return "MipsISD::PCKOD";
case MipsISD::INSVE: return "MipsISD::INSVE";
- default: return nullptr;
}
+ return nullptr;
}
MipsTargetLowering::MipsTargetLowering(const MipsTargetMachine &TM,
const MipsSubtarget &STI)
- : TargetLowering(TM, new MipsTargetObjectFile()), Subtarget(STI) {
+ : TargetLowering(TM), Subtarget(STI), ABI(TM.getABI()) {
// Mips does not have i1 type, so use i32 for
// setcc operations results (slt, sgt, ...).
setBooleanContents(ZeroOrOneBooleanContent);
ZeroOrNegativeOneBooleanContent);
// Load extented operations for i1 types must be promoted
- setLoadExtAction(ISD::EXTLOAD, MVT::i1, Promote);
- setLoadExtAction(ISD::ZEXTLOAD, MVT::i1, Promote);
- setLoadExtAction(ISD::SEXTLOAD, MVT::i1, Promote);
+ for (MVT VT : MVT::integer_valuetypes()) {
+ setLoadExtAction(ISD::EXTLOAD, VT, MVT::i1, Promote);
+ setLoadExtAction(ISD::ZEXTLOAD, VT, MVT::i1, Promote);
+ setLoadExtAction(ISD::SEXTLOAD, VT, MVT::i1, Promote);
+ }
+
+ // MIPS doesn't have extending float->double load/store. Set LoadExtAction
+ // for f32, f16
+ for (MVT VT : MVT::fp_valuetypes()) {
+ setLoadExtAction(ISD::EXTLOAD, VT, MVT::f32, Expand);
+ setLoadExtAction(ISD::EXTLOAD, VT, MVT::f16, Expand);
+ }
+
+ // Set LoadExtAction for f16 vectors to Expand
+ for (MVT VT : MVT::fp_vector_valuetypes()) {
+ MVT F16VT = MVT::getVectorVT(MVT::f16, VT.getVectorNumElements());
+ if (F16VT.isValid())
+ setLoadExtAction(ISD::EXTLOAD, VT, F16VT, Expand);
+ }
+
+ setTruncStoreAction(MVT::f32, MVT::f16, Expand);
+ setTruncStoreAction(MVT::f64, MVT::f16, Expand);
- // MIPS doesn't have extending float->double load/store
- setLoadExtAction(ISD::EXTLOAD, MVT::f32, Expand);
setTruncStoreAction(MVT::f64, MVT::f32, Expand);
// Used by legalize types to correctly generate the setcc result.
setOperationAction(ISD::LOAD, MVT::i64, Custom);
setOperationAction(ISD::STORE, MVT::i64, Custom);
setOperationAction(ISD::FP_TO_SINT, MVT::i64, Custom);
+ setOperationAction(ISD::SHL_PARTS, MVT::i64, Custom);
+ setOperationAction(ISD::SRA_PARTS, MVT::i64, Custom);
+ setOperationAction(ISD::SRL_PARTS, MVT::i64, Custom);
}
if (!Subtarget.isGP64bit()) {
setOperationAction(ISD::FREM, MVT::f32, Expand);
setOperationAction(ISD::FREM, MVT::f64, Expand);
+ // Lower f16 conversion operations into library calls
+ setOperationAction(ISD::FP16_TO_FP, MVT::f32, Expand);
+ setOperationAction(ISD::FP_TO_FP16, MVT::f32, Expand);
+ setOperationAction(ISD::FP16_TO_FP, MVT::f64, Expand);
+ setOperationAction(ISD::FP_TO_FP16, MVT::f64, Expand);
+
setOperationAction(ISD::EH_RETURN, MVT::Other, Custom);
setOperationAction(ISD::VASTART, MVT::Other, Custom);
setOperationAction(ISD::STACKSAVE, MVT::Other, Expand);
setOperationAction(ISD::STACKRESTORE, MVT::Other, Expand);
- setOperationAction(ISD::ATOMIC_LOAD, MVT::i32, Expand);
- setOperationAction(ISD::ATOMIC_LOAD, MVT::i64, Expand);
- setOperationAction(ISD::ATOMIC_STORE, MVT::i32, Expand);
- setOperationAction(ISD::ATOMIC_STORE, MVT::i64, Expand);
+ if (!Subtarget.isGP64bit()) {
+ setOperationAction(ISD::ATOMIC_LOAD, MVT::i64, Expand);
+ setOperationAction(ISD::ATOMIC_STORE, MVT::i64, Expand);
+ }
setInsertFencesForAtomic(true);
setOperationAction(ISD::BSWAP, MVT::i64, Expand);
if (Subtarget.isGP64bit()) {
- setLoadExtAction(ISD::SEXTLOAD, MVT::i32, Custom);
- setLoadExtAction(ISD::ZEXTLOAD, MVT::i32, Custom);
- setLoadExtAction(ISD::EXTLOAD, MVT::i32, Custom);
+ setLoadExtAction(ISD::SEXTLOAD, MVT::i64, MVT::i32, Custom);
+ setLoadExtAction(ISD::ZEXTLOAD, MVT::i64, MVT::i32, Custom);
+ setLoadExtAction(ISD::EXTLOAD, MVT::i64, MVT::i32, Custom);
setTruncStoreAction(MVT::i64, MVT::i32, Custom);
}
// The arguments on the stack are defined in terms of 4-byte slots on O32
// and 8-byte slots on N32/N64.
- setMinStackArgumentAlignment(
- (Subtarget.isABI_N32() || Subtarget.isABI_N64()) ? 8 : 4);
-
- setStackPointerRegisterToSaveRestore(Subtarget.isABI_N64() ? Mips::SP_64
- : Mips::SP);
+ setMinStackArgumentAlignment((ABI.IsN32() || ABI.IsN64()) ? 8 : 4);
- setExceptionPointerRegister(Subtarget.isABI_N64() ? Mips::A0_64 : Mips::A0);
- setExceptionSelectorRegister(Subtarget.isABI_N64() ? Mips::A1_64 : Mips::A1);
+ setStackPointerRegisterToSaveRestore(ABI.IsN64() ? Mips::SP_64 : Mips::SP);
MaxStoresPerMemcpy = 16;
FastISel *
MipsTargetLowering::createFastISel(FunctionLoweringInfo &funcInfo,
const TargetLibraryInfo *libInfo) const {
- if (!EnableMipsFastISel)
+ if (!funcInfo.MF->getTarget().Options.EnableFastISel)
return TargetLowering::createFastISel(funcInfo, libInfo);
return Mips::createFastISel(funcInfo, libInfo);
}
-EVT MipsTargetLowering::getSetCCResultType(LLVMContext &, EVT VT) const {
+EVT MipsTargetLowering::getSetCCResultType(const DataLayout &, LLVMContext &,
+ EVT VT) const {
if (!VT.isVector())
return MVT::i32;
return VT.changeVectorElementTypeToInteger();
ISD::CondCode CC = cast<CondCodeSDNode>(Op.getOperand(2))->get();
return DAG.getNode(MipsISD::FPCmp, DL, MVT::Glue, LHS, RHS,
- DAG.getConstant(condCodeToFCC(CC), MVT::i32));
+ DAG.getConstant(condCodeToFCC(CC), DL, MVT::i32));
}
// Creates and returns a CMovFPT/F node.
return SDValue();
}
+static SDValue performCMovFPCombine(SDNode *N, SelectionDAG &DAG,
+ TargetLowering::DAGCombinerInfo &DCI,
+ const MipsSubtarget &Subtarget) {
+ if (DCI.isBeforeLegalizeOps())
+ return SDValue();
+
+ SDValue ValueIfTrue = N->getOperand(0), ValueIfFalse = N->getOperand(2);
+
+ ConstantSDNode *FalseC = dyn_cast<ConstantSDNode>(ValueIfFalse);
+ if (!FalseC || FalseC->getZExtValue())
+ return SDValue();
+
+ // Since RHS (False) is 0, we swap the order of the True/False operands
+ // (obviously also inverting the condition) so that we can
+ // take advantage of conditional moves using the $0 register.
+ // Example:
+ // return (a != 0) ? x : 0;
+ // load $reg, x
+ // movz $reg, $0, a
+ unsigned Opc = (N->getOpcode() == MipsISD::CMovFP_T) ? MipsISD::CMovFP_F :
+ MipsISD::CMovFP_T;
+
+ SDValue FCC = N->getOperand(1), Glue = N->getOperand(3);
+ return DAG.getNode(Opc, SDLoc(N), ValueIfFalse.getValueType(),
+ ValueIfFalse, FCC, ValueIfTrue, Glue);
+}
+
static SDValue performANDCombine(SDNode *N, SelectionDAG &DAG,
TargetLowering::DAGCombinerInfo &DCI,
const MipsSubtarget &Subtarget) {
if (SMPos != 0 || Pos + SMSize > ValTy.getSizeInBits())
return SDValue();
- return DAG.getNode(MipsISD::Ext, SDLoc(N), ValTy,
- ShiftRight.getOperand(0), DAG.getConstant(Pos, MVT::i32),
- DAG.getConstant(SMSize, MVT::i32));
+ SDLoc DL(N);
+ return DAG.getNode(MipsISD::Ext, DL, ValTy,
+ ShiftRight.getOperand(0),
+ DAG.getConstant(Pos, DL, MVT::i32),
+ DAG.getConstant(SMSize, DL, MVT::i32));
}
static SDValue performORCombine(SDNode *N, SelectionDAG &DAG,
if ((Shamt != SMPos0) || (SMPos0 + SMSize0 > ValTy.getSizeInBits()))
return SDValue();
- return DAG.getNode(MipsISD::Ins, SDLoc(N), ValTy, Shl.getOperand(0),
- DAG.getConstant(SMPos0, MVT::i32),
- DAG.getConstant(SMSize0, MVT::i32), And0.getOperand(0));
+ SDLoc DL(N);
+ return DAG.getNode(MipsISD::Ins, DL, ValTy, Shl.getOperand(0),
+ DAG.getConstant(SMPos0, DL, MVT::i32),
+ DAG.getConstant(SMSize0, DL, MVT::i32),
+ And0.getOperand(0));
}
static SDValue performADDCombine(SDNode *N, SelectionDAG &DAG,
return performDivRemCombine(N, DAG, DCI, Subtarget);
case ISD::SELECT:
return performSELECTCombine(N, DAG, DCI, Subtarget);
+ case MipsISD::CMovFP_F:
+ case MipsISD::CMovFP_T:
+ return performCMovFPCombine(N, DAG, DCI, Subtarget);
case ISD::AND:
return performANDCombine(N, DAG, DCI, Subtarget);
case ISD::OR:
case Mips::DIVU:
case Mips::MOD:
case Mips::MODU:
- return insertDivByZeroTrap(
- MI, *BB, *getTargetMachine().getSubtargetImpl()->getInstrInfo(), false);
+ return insertDivByZeroTrap(MI, *BB, *Subtarget.getInstrInfo(), false);
case Mips::PseudoDSDIV:
case Mips::PseudoDUDIV:
case Mips::DDIV:
case Mips::DDIVU:
case Mips::DMOD:
case Mips::DMODU:
- return insertDivByZeroTrap(
- MI, *BB, *getTargetMachine().getSubtargetImpl()->getInstrInfo(), true);
+ return insertDivByZeroTrap(MI, *BB, *Subtarget.getInstrInfo(), true);
case Mips::SEL_D:
return emitSEL_D(MI, BB);
+
+ case Mips::PseudoSELECT_I:
+ case Mips::PseudoSELECT_I64:
+ case Mips::PseudoSELECT_S:
+ case Mips::PseudoSELECT_D32:
+ case Mips::PseudoSELECT_D64:
+ return emitPseudoSELECT(MI, BB, false, Mips::BNE);
+ case Mips::PseudoSELECTFP_F_I:
+ case Mips::PseudoSELECTFP_F_I64:
+ case Mips::PseudoSELECTFP_F_S:
+ case Mips::PseudoSELECTFP_F_D32:
+ case Mips::PseudoSELECTFP_F_D64:
+ return emitPseudoSELECT(MI, BB, true, Mips::BC1F);
+ case Mips::PseudoSELECTFP_T_I:
+ case Mips::PseudoSELECTFP_T_I64:
+ case Mips::PseudoSELECTFP_T_S:
+ case Mips::PseudoSELECTFP_T_D32:
+ case Mips::PseudoSELECTFP_T_D64:
+ return emitPseudoSELECT(MI, BB, true, Mips::BC1T);
}
}
MachineFunction *MF = BB->getParent();
MachineRegisterInfo &RegInfo = MF->getRegInfo();
const TargetRegisterClass *RC = getRegClassFor(MVT::getIntegerVT(Size * 8));
- const TargetInstrInfo *TII =
- getTargetMachine().getSubtargetImpl()->getInstrInfo();
+ const TargetInstrInfo *TII = Subtarget.getInstrInfo();
DebugLoc DL = MI->getDebugLoc();
unsigned LL, SC, AND, NOR, ZERO, BEQ;
const BasicBlock *LLVM_BB = BB->getBasicBlock();
MachineBasicBlock *loopMBB = MF->CreateMachineBasicBlock(LLVM_BB);
MachineBasicBlock *exitMBB = MF->CreateMachineBasicBlock(LLVM_BB);
- MachineFunction::iterator It = BB;
- ++It;
+ MachineFunction::iterator It = ++BB->getIterator();
MF->insert(It, loopMBB);
MF->insert(It, exitMBB);
MachineBasicBlock *MipsTargetLowering::emitSignExtendToI32InReg(
MachineInstr *MI, MachineBasicBlock *BB, unsigned Size, unsigned DstReg,
unsigned SrcReg) const {
- const TargetInstrInfo *TII =
- getTargetMachine().getSubtargetImpl()->getInstrInfo();
+ const TargetInstrInfo *TII = Subtarget.getInstrInfo();
DebugLoc DL = MI->getDebugLoc();
if (Subtarget.hasMips32r2() && Size == 1) {
MachineFunction *MF = BB->getParent();
MachineRegisterInfo &RegInfo = MF->getRegInfo();
const TargetRegisterClass *RC = getRegClassFor(MVT::i32);
- const TargetInstrInfo *TII =
- getTargetMachine().getSubtargetImpl()->getInstrInfo();
+ const TargetInstrInfo *TII = Subtarget.getInstrInfo();
DebugLoc DL = MI->getDebugLoc();
unsigned Dest = MI->getOperand(0).getReg();
MachineBasicBlock *loopMBB = MF->CreateMachineBasicBlock(LLVM_BB);
MachineBasicBlock *sinkMBB = MF->CreateMachineBasicBlock(LLVM_BB);
MachineBasicBlock *exitMBB = MF->CreateMachineBasicBlock(LLVM_BB);
- MachineFunction::iterator It = BB;
- ++It;
+ MachineFunction::iterator It = ++BB->getIterator();
MF->insert(It, loopMBB);
MF->insert(It, sinkMBB);
MF->insert(It, exitMBB);
// beq success,$0,loopMBB
BB = loopMBB;
- BuildMI(BB, DL, TII->get(Mips::LL), OldVal).addReg(AlignedAddr).addImm(0);
+ unsigned LL = isMicroMips ? Mips::LL_MM : Mips::LL;
+ BuildMI(BB, DL, TII->get(LL), OldVal).addReg(AlignedAddr).addImm(0);
if (Nand) {
// and andres, oldval, incr2
// nor binopres, $0, andres
.addReg(OldVal).addReg(Mask2);
BuildMI(BB, DL, TII->get(Mips::OR), StoreVal)
.addReg(MaskedOldVal0).addReg(NewVal);
- BuildMI(BB, DL, TII->get(Mips::SC), Success)
+ unsigned SC = isMicroMips ? Mips::SC_MM : Mips::SC;
+ BuildMI(BB, DL, TII->get(SC), Success)
.addReg(StoreVal).addReg(AlignedAddr).addImm(0);
BuildMI(BB, DL, TII->get(Mips::BEQ))
.addReg(Success).addReg(Mips::ZERO).addMBB(loopMBB);
MachineFunction *MF = BB->getParent();
MachineRegisterInfo &RegInfo = MF->getRegInfo();
const TargetRegisterClass *RC = getRegClassFor(MVT::getIntegerVT(Size * 8));
- const TargetInstrInfo *TII =
- getTargetMachine().getSubtargetImpl()->getInstrInfo();
+ const TargetInstrInfo *TII = Subtarget.getInstrInfo();
DebugLoc DL = MI->getDebugLoc();
unsigned LL, SC, ZERO, BNE, BEQ;
- if (Size == 4) {
- LL = isMicroMips ? Mips::LL_MM : Mips::LL;
- SC = isMicroMips ? Mips::SC_MM : Mips::SC;
+ if (Size == 4) {
+ if (isMicroMips) {
+ LL = Mips::LL_MM;
+ SC = Mips::SC_MM;
+ } else {
+ LL = Subtarget.hasMips32r6() ? Mips::LL_R6 : Mips::LL;
+ SC = Subtarget.hasMips32r6() ? Mips::SC_R6 : Mips::SC;
+ }
ZERO = Mips::ZERO;
BNE = Mips::BNE;
BEQ = Mips::BEQ;
} else {
- LL = Mips::LLD;
- SC = Mips::SCD;
+ LL = Subtarget.hasMips64r6() ? Mips::LLD_R6 : Mips::LLD;
+ SC = Subtarget.hasMips64r6() ? Mips::SCD_R6 : Mips::SCD;
ZERO = Mips::ZERO_64;
BNE = Mips::BNE64;
BEQ = Mips::BEQ64;
MachineBasicBlock *loop1MBB = MF->CreateMachineBasicBlock(LLVM_BB);
MachineBasicBlock *loop2MBB = MF->CreateMachineBasicBlock(LLVM_BB);
MachineBasicBlock *exitMBB = MF->CreateMachineBasicBlock(LLVM_BB);
- MachineFunction::iterator It = BB;
- ++It;
+ MachineFunction::iterator It = ++BB->getIterator();
MF->insert(It, loop1MBB);
MF->insert(It, loop2MBB);
MF->insert(It, exitMBB);
MachineFunction *MF = BB->getParent();
MachineRegisterInfo &RegInfo = MF->getRegInfo();
const TargetRegisterClass *RC = getRegClassFor(MVT::i32);
- const TargetInstrInfo *TII =
- getTargetMachine().getSubtargetImpl()->getInstrInfo();
+ const TargetInstrInfo *TII = Subtarget.getInstrInfo();
DebugLoc DL = MI->getDebugLoc();
unsigned Dest = MI->getOperand(0).getReg();
MachineBasicBlock *loop2MBB = MF->CreateMachineBasicBlock(LLVM_BB);
MachineBasicBlock *sinkMBB = MF->CreateMachineBasicBlock(LLVM_BB);
MachineBasicBlock *exitMBB = MF->CreateMachineBasicBlock(LLVM_BB);
- MachineFunction::iterator It = BB;
- ++It;
+ MachineFunction::iterator It = ++BB->getIterator();
MF->insert(It, loop1MBB);
MF->insert(It, loop2MBB);
MF->insert(It, sinkMBB);
// and maskedoldval0,oldval,mask
// bne maskedoldval0,shiftedcmpval,sinkMBB
BB = loop1MBB;
- BuildMI(BB, DL, TII->get(Mips::LL), OldVal).addReg(AlignedAddr).addImm(0);
+ unsigned LL = isMicroMips ? Mips::LL_MM : Mips::LL;
+ BuildMI(BB, DL, TII->get(LL), OldVal).addReg(AlignedAddr).addImm(0);
BuildMI(BB, DL, TII->get(Mips::AND), MaskedOldVal0)
.addReg(OldVal).addReg(Mask);
BuildMI(BB, DL, TII->get(Mips::BNE))
.addReg(OldVal).addReg(Mask2);
BuildMI(BB, DL, TII->get(Mips::OR), StoreVal)
.addReg(MaskedOldVal1).addReg(ShiftedNewVal);
- BuildMI(BB, DL, TII->get(Mips::SC), Success)
+ unsigned SC = isMicroMips ? Mips::SC_MM : Mips::SC;
+ BuildMI(BB, DL, TII->get(SC), Success)
.addReg(StoreVal).addReg(AlignedAddr).addImm(0);
BuildMI(BB, DL, TII->get(Mips::BEQ))
.addReg(Success).addReg(Mips::ZERO).addMBB(loop1MBB);
MachineBasicBlock *MipsTargetLowering::emitSEL_D(MachineInstr *MI,
MachineBasicBlock *BB) const {
MachineFunction *MF = BB->getParent();
- const TargetRegisterInfo *TRI =
- getTargetMachine().getSubtargetImpl()->getRegisterInfo();
- const TargetInstrInfo *TII =
- getTargetMachine().getSubtargetImpl()->getInstrInfo();
+ const TargetRegisterInfo *TRI = Subtarget.getRegisterInfo();
+ const TargetInstrInfo *TII = Subtarget.getInstrInfo();
MachineRegisterInfo &RegInfo = MF->getRegInfo();
DebugLoc DL = MI->getDebugLoc();
MachineBasicBlock::iterator II(MI);
SDValue Table = Op.getOperand(1);
SDValue Index = Op.getOperand(2);
SDLoc DL(Op);
- EVT PTy = getPointerTy();
+ auto &TD = DAG.getDataLayout();
+ EVT PTy = getPointerTy(TD);
unsigned EntrySize =
- DAG.getMachineFunction().getJumpTableInfo()->getEntrySize(*getDataLayout());
+ DAG.getMachineFunction().getJumpTableInfo()->getEntrySize(TD);
Index = DAG.getNode(ISD::MUL, DL, PTy, Index,
- DAG.getConstant(EntrySize, PTy));
+ DAG.getConstant(EntrySize, DL, PTy));
SDValue Addr = DAG.getNode(ISD::ADD, DL, PTy, Index, Table);
EVT MemVT = EVT::getIntegerVT(*DAG.getContext(), EntrySize * 8);
- Addr = DAG.getExtLoad(ISD::SEXTLOAD, DL, PTy, Chain, Addr,
- MachinePointerInfo::getJumpTable(), MemVT, false, false,
- false, 0);
+ Addr =
+ DAG.getExtLoad(ISD::SEXTLOAD, DL, PTy, Chain, Addr,
+ MachinePointerInfo::getJumpTable(DAG.getMachineFunction()),
+ MemVT, false, false, false, 0);
Chain = Addr.getValue(1);
- if ((getTargetMachine().getRelocationModel() == Reloc::PIC_) ||
- Subtarget.isABI_N64()) {
+ if ((getTargetMachine().getRelocationModel() == Reloc::PIC_) || ABI.IsN64()) {
// For PIC, the sequence is:
// BRIND(load(Jumptable + index) + RelocBase)
// RelocBase can be JumpTable, GOT or some sort of global base.
Mips::CondCode CC =
(Mips::CondCode)cast<ConstantSDNode>(CCNode)->getZExtValue();
unsigned Opc = invertFPCondCodeUser(CC) ? Mips::BRANCH_F : Mips::BRANCH_T;
- SDValue BrCode = DAG.getConstant(Opc, MVT::i32);
+ SDValue BrCode = DAG.getConstant(Opc, DL, MVT::i32);
SDValue FCC0 = DAG.getRegister(Mips::FCC0, MVT::i32);
return DAG.getNode(MipsISD::FPBrcond, DL, Op.getValueType(), Chain, BrCode,
FCC0, Dest, CondRes);
{
SDLoc DL(Op);
EVT Ty = Op.getOperand(0).getValueType();
- SDValue Cond = DAG.getNode(ISD::SETCC, DL,
- getSetCCResultType(*DAG.getContext(), Ty),
- Op.getOperand(0), Op.getOperand(1),
- Op.getOperand(4));
+ SDValue Cond =
+ DAG.getNode(ISD::SETCC, DL, getSetCCResultType(DAG.getDataLayout(),
+ *DAG.getContext(), Ty),
+ Op.getOperand(0), Op.getOperand(1), Op.getOperand(4));
return DAG.getNode(ISD::SELECT, DL, Op.getValueType(), Cond, Op.getOperand(2),
Op.getOperand(3));
assert(Cond.getOpcode() == MipsISD::FPCmp &&
"Floating point operand expected.");
- SDValue True = DAG.getConstant(1, MVT::i32);
- SDValue False = DAG.getConstant(0, MVT::i32);
+ SDLoc DL(Op);
+ SDValue True = DAG.getConstant(1, DL, MVT::i32);
+ SDValue False = DAG.getConstant(0, DL, MVT::i32);
- return createCMovFP(DAG, Cond, True, False, SDLoc(Op));
+ return createCMovFP(DAG, Cond, True, False, DL);
}
SDValue MipsTargetLowering::lowerGlobalAddress(SDValue Op,
SelectionDAG &DAG) const {
- // FIXME there isn't actually debug info here
- SDLoc DL(Op);
EVT Ty = Op.getValueType();
GlobalAddressSDNode *N = cast<GlobalAddressSDNode>(Op);
const GlobalValue *GV = N->getGlobal();
- if (getTargetMachine().getRelocationModel() != Reloc::PIC_ &&
- !Subtarget.isABI_N64()) {
- const MipsTargetObjectFile &TLOF =
- (const MipsTargetObjectFile&)getObjFileLowering();
-
- // %gp_rel relocation
- if (TLOF.IsGlobalInSmallSection(GV, getTargetMachine())) {
- SDValue GA = DAG.getTargetGlobalAddress(GV, DL, MVT::i32, 0,
- MipsII::MO_GPREL);
- SDValue GPRelNode = DAG.getNode(MipsISD::GPRel, DL,
- DAG.getVTList(MVT::i32), GA);
- SDValue GPReg = DAG.getRegister(Mips::GP, MVT::i32);
- return DAG.getNode(ISD::ADD, DL, MVT::i32, GPReg, GPRelNode);
- }
+ if (getTargetMachine().getRelocationModel() != Reloc::PIC_ && !ABI.IsN64()) {
+ const MipsTargetObjectFile *TLOF =
+ static_cast<const MipsTargetObjectFile *>(
+ getTargetMachine().getObjFileLowering());
+ if (TLOF->IsGlobalInSmallSection(GV, getTargetMachine()))
+ // %gp_rel relocation
+ return getAddrGPRel(N, SDLoc(N), Ty, DAG);
// %hi/%lo relocation
- return getAddrNonPIC(N, Ty, DAG);
+ return getAddrNonPIC(N, SDLoc(N), Ty, DAG);
}
if (GV->hasInternalLinkage() || (GV->hasLocalLinkage() && !isa<Function>(GV)))
- return getAddrLocal(N, Ty, DAG,
- Subtarget.isABI_N32() || Subtarget.isABI_N64());
+ return getAddrLocal(N, SDLoc(N), Ty, DAG, ABI.IsN32() || ABI.IsN64());
if (LargeGOT)
- return getAddrGlobalLargeGOT(N, Ty, DAG, MipsII::MO_GOT_HI16,
- MipsII::MO_GOT_LO16, DAG.getEntryNode(),
- MachinePointerInfo::getGOT());
+ return getAddrGlobalLargeGOT(
+ N, SDLoc(N), Ty, DAG, MipsII::MO_GOT_HI16, MipsII::MO_GOT_LO16,
+ DAG.getEntryNode(),
+ MachinePointerInfo::getGOT(DAG.getMachineFunction()));
- return getAddrGlobal(N, Ty, DAG,
- (Subtarget.isABI_N32() || Subtarget.isABI_N64())
- ? MipsII::MO_GOT_DISP
- : MipsII::MO_GOT16,
- DAG.getEntryNode(), MachinePointerInfo::getGOT());
+ return getAddrGlobal(
+ N, SDLoc(N), Ty, DAG,
+ (ABI.IsN32() || ABI.IsN64()) ? MipsII::MO_GOT_DISP : MipsII::MO_GOT16,
+ DAG.getEntryNode(), MachinePointerInfo::getGOT(DAG.getMachineFunction()));
}
SDValue MipsTargetLowering::lowerBlockAddress(SDValue Op,
BlockAddressSDNode *N = cast<BlockAddressSDNode>(Op);
EVT Ty = Op.getValueType();
- if (getTargetMachine().getRelocationModel() != Reloc::PIC_ &&
- !Subtarget.isABI_N64())
- return getAddrNonPIC(N, Ty, DAG);
+ if (getTargetMachine().getRelocationModel() != Reloc::PIC_ && !ABI.IsN64())
+ return getAddrNonPIC(N, SDLoc(N), Ty, DAG);
- return getAddrLocal(N, Ty, DAG,
- Subtarget.isABI_N32() || Subtarget.isABI_N64());
+ return getAddrLocal(N, SDLoc(N), Ty, DAG, ABI.IsN32() || ABI.IsN64());
}
SDValue MipsTargetLowering::
// Local Exec TLS Model.
GlobalAddressSDNode *GA = cast<GlobalAddressSDNode>(Op);
+ if (DAG.getTarget().Options.EmulatedTLS)
+ return LowerToTLSEmulatedModel(GA, DAG);
+
SDLoc DL(GA);
const GlobalValue *GV = GA->getGlobal();
- EVT PtrVT = getPointerTy();
+ EVT PtrVT = getPointerTy(DAG.getDataLayout());
TLSModel::Model model = getTargetMachine().getTLSModel(GV);
JumpTableSDNode *N = cast<JumpTableSDNode>(Op);
EVT Ty = Op.getValueType();
- if (getTargetMachine().getRelocationModel() != Reloc::PIC_ &&
- !Subtarget.isABI_N64())
- return getAddrNonPIC(N, Ty, DAG);
+ if (getTargetMachine().getRelocationModel() != Reloc::PIC_ && !ABI.IsN64())
+ return getAddrNonPIC(N, SDLoc(N), Ty, DAG);
- return getAddrLocal(N, Ty, DAG,
- Subtarget.isABI_N32() || Subtarget.isABI_N64());
+ return getAddrLocal(N, SDLoc(N), Ty, DAG, ABI.IsN32() || ABI.IsN64());
}
SDValue MipsTargetLowering::
lowerConstantPool(SDValue Op, SelectionDAG &DAG) const
{
- // gp_rel relocation
- // FIXME: we should reference the constant pool using small data sections,
- // but the asm printer currently doesn't support this feature without
- // hacking it. This feature should come soon so we can uncomment the
- // stuff below.
- //if (IsInSmallSection(C->getType())) {
- // SDValue GPRelNode = DAG.getNode(MipsISD::GPRel, MVT::i32, CP);
- // SDValue GOT = DAG.getGLOBAL_OFFSET_TABLE(MVT::i32);
- // ResNode = DAG.getNode(ISD::ADD, MVT::i32, GOT, GPRelNode);
ConstantPoolSDNode *N = cast<ConstantPoolSDNode>(Op);
EVT Ty = Op.getValueType();
- if (getTargetMachine().getRelocationModel() != Reloc::PIC_ &&
- !Subtarget.isABI_N64())
- return getAddrNonPIC(N, Ty, DAG);
+ if (getTargetMachine().getRelocationModel() != Reloc::PIC_ && !ABI.IsN64()) {
+ const MipsTargetObjectFile *TLOF =
+ static_cast<const MipsTargetObjectFile *>(
+ getTargetMachine().getObjFileLowering());
+
+ if (TLOF->IsConstantInSmallSection(DAG.getDataLayout(), N->getConstVal(),
+ getTargetMachine()))
+ // %gp_rel relocation
+ return getAddrGPRel(N, SDLoc(N), Ty, DAG);
+
+ return getAddrNonPIC(N, SDLoc(N), Ty, DAG);
+ }
- return getAddrLocal(N, Ty, DAG,
- Subtarget.isABI_N32() || Subtarget.isABI_N64());
+ return getAddrLocal(N, SDLoc(N), Ty, DAG, ABI.IsN32() || ABI.IsN64());
}
SDValue MipsTargetLowering::lowerVASTART(SDValue Op, SelectionDAG &DAG) const {
SDLoc DL(Op);
SDValue FI = DAG.getFrameIndex(FuncInfo->getVarArgsFrameIndex(),
- getPointerTy());
+ getPointerTy(MF.getDataLayout()));
// vastart just stores the address of the VarArgsFrameIndex slot into the
// memory location argument.
unsigned Align = Node->getConstantOperandVal(3);
const Value *SV = cast<SrcValueSDNode>(Node->getOperand(2))->getValue();
SDLoc DL(Node);
- unsigned ArgSlotSizeInBytes =
- (Subtarget.isABI_N32() || Subtarget.isABI_N64()) ? 8 : 4;
+ unsigned ArgSlotSizeInBytes = (ABI.IsN32() || ABI.IsN64()) ? 8 : 4;
- SDValue VAListLoad = DAG.getLoad(getPointerTy(), DL, Chain, VAListPtr,
- MachinePointerInfo(SV), false, false, false,
- 0);
+ SDValue VAListLoad =
+ DAG.getLoad(getPointerTy(DAG.getDataLayout()), DL, Chain, VAListPtr,
+ MachinePointerInfo(SV), false, false, false, 0);
SDValue VAList = VAListLoad;
// Re-align the pointer if necessary.
assert(((Align & (Align-1)) == 0) && "Expected Align to be a power of 2");
VAList = DAG.getNode(ISD::ADD, DL, VAList.getValueType(), VAList,
- DAG.getConstant(Align - 1,
- VAList.getValueType()));
+ DAG.getConstant(Align - 1, DL, VAList.getValueType()));
VAList = DAG.getNode(ISD::AND, DL, VAList.getValueType(), VAList,
- DAG.getConstant(-(int64_t)Align,
+ DAG.getConstant(-(int64_t)Align, DL,
VAList.getValueType()));
}
// Increment the pointer, VAList, to the next vaarg.
- unsigned ArgSizeInBytes = getDataLayout()->getTypeAllocSize(VT.getTypeForEVT(*DAG.getContext()));
+ auto &TD = DAG.getDataLayout();
+ unsigned ArgSizeInBytes =
+ TD.getTypeAllocSize(VT.getTypeForEVT(*DAG.getContext()));
SDValue Tmp3 = DAG.getNode(ISD::ADD, DL, VAList.getValueType(), VAList,
- DAG.getConstant(RoundUpToAlignment(ArgSizeInBytes, ArgSlotSizeInBytes),
- VAList.getValueType()));
+ DAG.getConstant(RoundUpToAlignment(ArgSizeInBytes,
+ ArgSlotSizeInBytes),
+ DL, VAList.getValueType()));
// Store the incremented VAList to the legalized pointer
Chain = DAG.getStore(VAListLoad.getValue(1), DL, Tmp3, VAListPtr,
MachinePointerInfo(SV), false, false, 0);
if (!Subtarget.isLittle() && ArgSizeInBytes < ArgSlotSizeInBytes) {
unsigned Adjustment = ArgSlotSizeInBytes - ArgSizeInBytes;
VAList = DAG.getNode(ISD::ADD, DL, VAListPtr.getValueType(), VAList,
- DAG.getIntPtrConstant(Adjustment));
+ DAG.getIntPtrConstant(Adjustment, DL));
}
// Load the actual argument out of the pointer VAList
return DAG.getLoad(VT, DL, Chain, VAList, MachinePointerInfo(), false, false,
bool HasExtractInsert) {
EVT TyX = Op.getOperand(0).getValueType();
EVT TyY = Op.getOperand(1).getValueType();
- SDValue Const1 = DAG.getConstant(1, MVT::i32);
- SDValue Const31 = DAG.getConstant(31, MVT::i32);
SDLoc DL(Op);
+ SDValue Const1 = DAG.getConstant(1, DL, MVT::i32);
+ SDValue Const31 = DAG.getConstant(31, DL, MVT::i32);
SDValue Res;
// If operand is of type f64, extract the upper 32-bit. Otherwise, bitcast it
return DAG.getNode(ISD::BITCAST, DL, Op.getOperand(0).getValueType(), Res);
SDValue LowX = DAG.getNode(MipsISD::ExtractElementF64, DL, MVT::i32,
- Op.getOperand(0), DAG.getConstant(0, MVT::i32));
+ Op.getOperand(0),
+ DAG.getConstant(0, DL, MVT::i32));
return DAG.getNode(MipsISD::BuildPairF64, DL, MVT::f64, LowX, Res);
}
unsigned WidthX = Op.getOperand(0).getValueSizeInBits();
unsigned WidthY = Op.getOperand(1).getValueSizeInBits();
EVT TyX = MVT::getIntegerVT(WidthX), TyY = MVT::getIntegerVT(WidthY);
- SDValue Const1 = DAG.getConstant(1, MVT::i32);
SDLoc DL(Op);
+ SDValue Const1 = DAG.getConstant(1, DL, MVT::i32);
// Bitcast to integer nodes.
SDValue X = DAG.getNode(ISD::BITCAST, DL, TyX, Op.getOperand(0));
// ext E, Y, width(Y) - 1, 1 ; extract bit width(Y)-1 of Y
// ins X, E, width(X) - 1, 1 ; insert extracted bit at bit width(X)-1 of X
SDValue E = DAG.getNode(MipsISD::Ext, DL, TyY, Y,
- DAG.getConstant(WidthY - 1, MVT::i32), Const1);
+ DAG.getConstant(WidthY - 1, DL, MVT::i32), Const1);
if (WidthX > WidthY)
E = DAG.getNode(ISD::ZERO_EXTEND, DL, TyX, E);
E = DAG.getNode(ISD::TRUNCATE, DL, TyX, E);
SDValue I = DAG.getNode(MipsISD::Ins, DL, TyX, E,
- DAG.getConstant(WidthX - 1, MVT::i32), Const1, X);
+ DAG.getConstant(WidthX - 1, DL, MVT::i32), Const1,
+ X);
return DAG.getNode(ISD::BITCAST, DL, Op.getOperand(0).getValueType(), I);
}
SDValue SllX = DAG.getNode(ISD::SHL, DL, TyX, X, Const1);
SDValue SrlX = DAG.getNode(ISD::SRL, DL, TyX, SllX, Const1);
SDValue SrlY = DAG.getNode(ISD::SRL, DL, TyY, Y,
- DAG.getConstant(WidthY - 1, MVT::i32));
+ DAG.getConstant(WidthY - 1, DL, MVT::i32));
if (WidthX > WidthY)
SrlY = DAG.getNode(ISD::ZERO_EXTEND, DL, TyX, SrlY);
SrlY = DAG.getNode(ISD::TRUNCATE, DL, TyX, SrlY);
SDValue SllY = DAG.getNode(ISD::SHL, DL, TyX, SrlY,
- DAG.getConstant(WidthX - 1, MVT::i32));
+ DAG.getConstant(WidthX - 1, DL, MVT::i32));
SDValue Or = DAG.getNode(ISD::OR, DL, TyX, SrlX, SllY);
return DAG.getNode(ISD::BITCAST, DL, Op.getOperand(0).getValueType(), Or);
}
MFI->setFrameAddressIsTaken(true);
EVT VT = Op.getValueType();
SDLoc DL(Op);
- SDValue FrameAddr =
- DAG.getCopyFromReg(DAG.getEntryNode(), DL,
- Subtarget.isABI_N64() ? Mips::FP_64 : Mips::FP, VT);
+ SDValue FrameAddr = DAG.getCopyFromReg(
+ DAG.getEntryNode(), DL, ABI.IsN64() ? Mips::FP_64 : Mips::FP, VT);
return FrameAddr;
}
MachineFunction &MF = DAG.getMachineFunction();
MachineFrameInfo *MFI = MF.getFrameInfo();
MVT VT = Op.getSimpleValueType();
- unsigned RA = Subtarget.isABI_N64() ? Mips::RA_64 : Mips::RA;
+ unsigned RA = ABI.IsN64() ? Mips::RA_64 : Mips::RA;
MFI->setReturnAddressIsTaken(true);
// Return RA, which contains the return address. Mark it an implicit live-in.
SDValue Offset = Op.getOperand(1);
SDValue Handler = Op.getOperand(2);
SDLoc DL(Op);
- EVT Ty = Subtarget.isABI_N64() ? MVT::i64 : MVT::i32;
+ EVT Ty = ABI.IsN64() ? MVT::i64 : MVT::i32;
// Store stack offset in V1, store jump target in V0. Glue CopyToReg and
// EH_RETURN nodes, so that instructions are emitted back-to-back.
- unsigned OffsetReg = Subtarget.isABI_N64() ? Mips::V1_64 : Mips::V1;
- unsigned AddrReg = Subtarget.isABI_N64() ? Mips::V0_64 : Mips::V0;
+ unsigned OffsetReg = ABI.IsN64() ? Mips::V1_64 : Mips::V1;
+ unsigned AddrReg = ABI.IsN64() ? Mips::V0_64 : Mips::V0;
Chain = DAG.getCopyToReg(Chain, DL, OffsetReg, Offset, SDValue());
Chain = DAG.getCopyToReg(Chain, DL, AddrReg, Handler, Chain.getValue(1));
return DAG.getNode(MipsISD::EH_RETURN, DL, MVT::Other, Chain,
DAG.getRegister(OffsetReg, Ty),
- DAG.getRegister(AddrReg, getPointerTy()),
+ DAG.getRegister(AddrReg, getPointerTy(MF.getDataLayout())),
Chain.getValue(1));
}
unsigned SType = 0;
SDLoc DL(Op);
return DAG.getNode(MipsISD::Sync, DL, MVT::Other, Op.getOperand(0),
- DAG.getConstant(SType, MVT::i32));
+ DAG.getConstant(SType, DL, MVT::i32));
}
SDValue MipsTargetLowering::lowerShiftLeftParts(SDValue Op,
SelectionDAG &DAG) const {
SDLoc DL(Op);
+ MVT VT = Subtarget.isGP64bit() ? MVT::i64 : MVT::i32;
+
SDValue Lo = Op.getOperand(0), Hi = Op.getOperand(1);
SDValue Shamt = Op.getOperand(2);
-
- // if shamt < 32:
+ // if shamt < (VT.bits):
// lo = (shl lo, shamt)
// hi = (or (shl hi, shamt) (srl (srl lo, 1), ~shamt))
// else:
// lo = 0
// hi = (shl lo, shamt[4:0])
SDValue Not = DAG.getNode(ISD::XOR, DL, MVT::i32, Shamt,
- DAG.getConstant(-1, MVT::i32));
- SDValue ShiftRight1Lo = DAG.getNode(ISD::SRL, DL, MVT::i32, Lo,
- DAG.getConstant(1, MVT::i32));
- SDValue ShiftRightLo = DAG.getNode(ISD::SRL, DL, MVT::i32, ShiftRight1Lo,
- Not);
- SDValue ShiftLeftHi = DAG.getNode(ISD::SHL, DL, MVT::i32, Hi, Shamt);
- SDValue Or = DAG.getNode(ISD::OR, DL, MVT::i32, ShiftLeftHi, ShiftRightLo);
- SDValue ShiftLeftLo = DAG.getNode(ISD::SHL, DL, MVT::i32, Lo, Shamt);
+ DAG.getConstant(-1, DL, MVT::i32));
+ SDValue ShiftRight1Lo = DAG.getNode(ISD::SRL, DL, VT, Lo,
+ DAG.getConstant(1, DL, VT));
+ SDValue ShiftRightLo = DAG.getNode(ISD::SRL, DL, VT, ShiftRight1Lo, Not);
+ SDValue ShiftLeftHi = DAG.getNode(ISD::SHL, DL, VT, Hi, Shamt);
+ SDValue Or = DAG.getNode(ISD::OR, DL, VT, ShiftLeftHi, ShiftRightLo);
+ SDValue ShiftLeftLo = DAG.getNode(ISD::SHL, DL, VT, Lo, Shamt);
SDValue Cond = DAG.getNode(ISD::AND, DL, MVT::i32, Shamt,
- DAG.getConstant(0x20, MVT::i32));
- Lo = DAG.getNode(ISD::SELECT, DL, MVT::i32, Cond,
- DAG.getConstant(0, MVT::i32), ShiftLeftLo);
- Hi = DAG.getNode(ISD::SELECT, DL, MVT::i32, Cond, ShiftLeftLo, Or);
+ DAG.getConstant(VT.getSizeInBits(), DL, MVT::i32));
+ Lo = DAG.getNode(ISD::SELECT, DL, VT, Cond,
+ DAG.getConstant(0, DL, VT), ShiftLeftLo);
+ Hi = DAG.getNode(ISD::SELECT, DL, VT, Cond, ShiftLeftLo, Or);
SDValue Ops[2] = {Lo, Hi};
return DAG.getMergeValues(Ops, DL);
SDLoc DL(Op);
SDValue Lo = Op.getOperand(0), Hi = Op.getOperand(1);
SDValue Shamt = Op.getOperand(2);
+ MVT VT = Subtarget.isGP64bit() ? MVT::i64 : MVT::i32;
- // if shamt < 32:
+ // if shamt < (VT.bits):
// lo = (or (shl (shl hi, 1), ~shamt) (srl lo, shamt))
// if isSRA:
// hi = (sra hi, shamt)
// lo = (srl hi, shamt[4:0])
// hi = 0
SDValue Not = DAG.getNode(ISD::XOR, DL, MVT::i32, Shamt,
- DAG.getConstant(-1, MVT::i32));
- SDValue ShiftLeft1Hi = DAG.getNode(ISD::SHL, DL, MVT::i32, Hi,
- DAG.getConstant(1, MVT::i32));
- SDValue ShiftLeftHi = DAG.getNode(ISD::SHL, DL, MVT::i32, ShiftLeft1Hi, Not);
- SDValue ShiftRightLo = DAG.getNode(ISD::SRL, DL, MVT::i32, Lo, Shamt);
- SDValue Or = DAG.getNode(ISD::OR, DL, MVT::i32, ShiftLeftHi, ShiftRightLo);
- SDValue ShiftRightHi = DAG.getNode(IsSRA ? ISD::SRA : ISD::SRL, DL, MVT::i32,
- Hi, Shamt);
+ DAG.getConstant(-1, DL, MVT::i32));
+ SDValue ShiftLeft1Hi = DAG.getNode(ISD::SHL, DL, VT, Hi,
+ DAG.getConstant(1, DL, VT));
+ SDValue ShiftLeftHi = DAG.getNode(ISD::SHL, DL, VT, ShiftLeft1Hi, Not);
+ SDValue ShiftRightLo = DAG.getNode(ISD::SRL, DL, VT, Lo, Shamt);
+ SDValue Or = DAG.getNode(ISD::OR, DL, VT, ShiftLeftHi, ShiftRightLo);
+ SDValue ShiftRightHi = DAG.getNode(IsSRA ? ISD::SRA : ISD::SRL,
+ DL, VT, Hi, Shamt);
SDValue Cond = DAG.getNode(ISD::AND, DL, MVT::i32, Shamt,
- DAG.getConstant(0x20, MVT::i32));
- SDValue Shift31 = DAG.getNode(ISD::SRA, DL, MVT::i32, Hi,
- DAG.getConstant(31, MVT::i32));
- Lo = DAG.getNode(ISD::SELECT, DL, MVT::i32, Cond, ShiftRightHi, Or);
- Hi = DAG.getNode(ISD::SELECT, DL, MVT::i32, Cond,
- IsSRA ? Shift31 : DAG.getConstant(0, MVT::i32),
- ShiftRightHi);
+ DAG.getConstant(VT.getSizeInBits(), DL, MVT::i32));
+ SDValue Ext = DAG.getNode(ISD::SRA, DL, VT, Hi,
+ DAG.getConstant(VT.getSizeInBits() - 1, DL, VT));
+ Lo = DAG.getNode(ISD::SELECT, DL, VT, Cond, ShiftRightHi, Or);
+ Hi = DAG.getNode(ISD::SELECT, DL, VT, Cond,
+ IsSRA ? Ext : DAG.getConstant(0, DL, VT), ShiftRightHi);
SDValue Ops[2] = {Lo, Hi};
return DAG.getMergeValues(Ops, DL);
if (Offset)
Ptr = DAG.getNode(ISD::ADD, DL, BasePtrVT, Ptr,
- DAG.getConstant(Offset, BasePtrVT));
+ DAG.getConstant(Offset, DL, BasePtrVT));
SDValue Ops[] = { Chain, Ptr, Src };
return DAG.getMemIntrinsicNode(Opc, DL, VTList, Ops, MemVT,
// (set tmp2, (shl tmp1, 32))
// (set dst, (srl tmp2, 32))
SDLoc DL(LD);
- SDValue Const32 = DAG.getConstant(32, MVT::i32);
+ SDValue Const32 = DAG.getConstant(32, DL, MVT::i32);
SDValue SLL = DAG.getNode(ISD::SHL, DL, MVT::i64, LWR, Const32);
SDValue SRL = DAG.getNode(ISD::SRL, DL, MVT::i64, SLL, Const32);
SDValue Ops[] = { SRL, LWR.getValue(1) };
if (Offset)
Ptr = DAG.getNode(ISD::ADD, DL, BasePtrVT, Ptr,
- DAG.getConstant(Offset, BasePtrVT));
+ DAG.getConstant(Offset, DL, BasePtrVT));
SDValue Ops[] = { Chain, Value, Ptr };
return DAG.getMemIntrinsicNode(Opc, DL, VTList, Ops, MemVT,
EVT ValTy = Op->getValueType(0);
int FI = MFI->CreateFixedObject(Op.getValueSizeInBits() / 8, 0, false);
SDValue InArgsAddr = DAG.getFrameIndex(FI, ValTy);
- return DAG.getNode(ISD::ADD, SDLoc(Op), ValTy, InArgsAddr,
- DAG.getConstant(0, ValTy));
+ SDLoc DL(Op);
+ return DAG.getNode(ISD::ADD, DL, ValTy, InArgsAddr,
+ DAG.getConstant(0, DL, ValTy));
}
SDValue MipsTargetLowering::lowerFP_TO_SINT(SDValue Op,
static bool CC_MipsO32(unsigned ValNo, MVT ValVT, MVT LocVT,
CCValAssign::LocInfo LocInfo, ISD::ArgFlagsTy ArgFlags,
- CCState &State, const MCPhysReg *F64Regs) {
-
- static const unsigned IntRegsSize = 4, FloatRegsSize = 2;
+ CCState &State, ArrayRef<MCPhysReg> F64Regs) {
+ const MipsSubtarget &Subtarget = static_cast<const MipsSubtarget &>(
+ State.getMachineFunction().getSubtarget());
static const MCPhysReg IntRegs[] = { Mips::A0, Mips::A1, Mips::A2, Mips::A3 };
static const MCPhysReg F32Regs[] = { Mips::F12, Mips::F14 };
if (ArgFlags.isByVal())
return true;
+ // Promote i8 and i16
+ if (ArgFlags.isInReg() && !Subtarget.isLittle()) {
+ if (LocVT == MVT::i8 || LocVT == MVT::i16 || LocVT == MVT::i32) {
+ LocVT = MVT::i32;
+ if (ArgFlags.isSExt())
+ LocInfo = CCValAssign::SExtUpper;
+ else if (ArgFlags.isZExt())
+ LocInfo = CCValAssign::ZExtUpper;
+ else
+ LocInfo = CCValAssign::AExtUpper;
+ }
+ }
+
// Promote i8 and i16
if (LocVT == MVT::i8 || LocVT == MVT::i16) {
LocVT = MVT::i32;
// f32 and f64 are allocated in A0, A1, A2, A3 when either of the following
// is true: function is vararg, argument is 3rd or higher, there is previous
// argument which is not f32 or f64.
- bool AllocateFloatsInIntReg = State.isVarArg() || ValNo > 1
- || State.getFirstUnallocated(F32Regs, FloatRegsSize) != ValNo;
+ bool AllocateFloatsInIntReg = State.isVarArg() || ValNo > 1 ||
+ State.getFirstUnallocated(F32Regs) != ValNo;
unsigned OrigAlign = ArgFlags.getOrigAlign();
bool isI64 = (ValVT == MVT::i32 && OrigAlign == 8);
if (ValVT == MVT::i32 || (ValVT == MVT::f32 && AllocateFloatsInIntReg)) {
- Reg = State.AllocateReg(IntRegs, IntRegsSize);
+ Reg = State.AllocateReg(IntRegs);
// If this is the first part of an i64 arg,
// the allocated register must be either A0 or A2.
if (isI64 && (Reg == Mips::A1 || Reg == Mips::A3))
- Reg = State.AllocateReg(IntRegs, IntRegsSize);
+ Reg = State.AllocateReg(IntRegs);
LocVT = MVT::i32;
} else if (ValVT == MVT::f64 && AllocateFloatsInIntReg) {
// Allocate int register and shadow next int register. If first
// available register is Mips::A1 or Mips::A3, shadow it too.
- Reg = State.AllocateReg(IntRegs, IntRegsSize);
+ Reg = State.AllocateReg(IntRegs);
if (Reg == Mips::A1 || Reg == Mips::A3)
- Reg = State.AllocateReg(IntRegs, IntRegsSize);
- State.AllocateReg(IntRegs, IntRegsSize);
+ Reg = State.AllocateReg(IntRegs);
+ State.AllocateReg(IntRegs);
LocVT = MVT::i32;
} else if (ValVT.isFloatingPoint() && !AllocateFloatsInIntReg) {
// we are guaranteed to find an available float register
if (ValVT == MVT::f32) {
- Reg = State.AllocateReg(F32Regs, FloatRegsSize);
+ Reg = State.AllocateReg(F32Regs);
// Shadow int register
- State.AllocateReg(IntRegs, IntRegsSize);
+ State.AllocateReg(IntRegs);
} else {
- Reg = State.AllocateReg(F64Regs, FloatRegsSize);
+ Reg = State.AllocateReg(F64Regs);
// Shadow int registers
- unsigned Reg2 = State.AllocateReg(IntRegs, IntRegsSize);
+ unsigned Reg2 = State.AllocateReg(IntRegs);
if (Reg2 == Mips::A1 || Reg2 == Mips::A3)
- State.AllocateReg(IntRegs, IntRegsSize);
- State.AllocateReg(IntRegs, IntRegsSize);
+ State.AllocateReg(IntRegs);
+ State.AllocateReg(IntRegs);
}
} else
llvm_unreachable("Cannot handle this ValVT.");
return CC_MipsO32(ValNo, ValVT, LocVT, LocInfo, ArgFlags, State, F64Regs);
}
+static bool CC_MipsO32(unsigned ValNo, MVT ValVT, MVT LocVT,
+ CCValAssign::LocInfo LocInfo, ISD::ArgFlagsTy ArgFlags,
+ CCState &State) LLVM_ATTRIBUTE_UNUSED;
+
#include "MipsGenCallingConv.inc"
//===----------------------------------------------------------------------===//
SDValue Chain, SDValue Arg, SDLoc DL,
bool IsTailCall, SelectionDAG &DAG) const {
if (!IsTailCall) {
- SDValue PtrOff = DAG.getNode(ISD::ADD, DL, getPointerTy(), StackPtr,
- DAG.getIntPtrConstant(Offset));
+ SDValue PtrOff =
+ DAG.getNode(ISD::ADD, DL, getPointerTy(DAG.getDataLayout()), StackPtr,
+ DAG.getIntPtrConstant(Offset, DL));
return DAG.getStore(Chain, DL, Arg, PtrOff, MachinePointerInfo(), false,
false, 0);
}
MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo();
int FI = MFI->CreateFixedObject(Arg.getValueSizeInBits() / 8, Offset, false);
- SDValue FIN = DAG.getFrameIndex(FI, getPointerTy());
+ SDValue FIN = DAG.getFrameIndex(FI, getPointerTy(DAG.getDataLayout()));
return DAG.getStore(Chain, DL, Arg, FIN, MachinePointerInfo(),
/*isVolatile=*/ true, false, 0);
}
getOpndList(SmallVectorImpl<SDValue> &Ops,
std::deque< std::pair<unsigned, SDValue> > &RegsToPass,
bool IsPICCall, bool GlobalOrExternal, bool InternalLinkage,
- CallLoweringInfo &CLI, SDValue Callee, SDValue Chain) const {
+ bool IsCallReloc, CallLoweringInfo &CLI, SDValue Callee,
+ SDValue Chain) const {
// Insert node "GP copy globalreg" before call to function.
//
// R_MIPS_CALL* operators (emitted when non-internal functions are called
// in PIC mode) allow symbols to be resolved via lazy binding.
// The lazy binding stub requires GP to point to the GOT.
- if (IsPICCall && !InternalLinkage) {
- unsigned GPReg = Subtarget.isABI_N64() ? Mips::GP_64 : Mips::GP;
- EVT Ty = Subtarget.isABI_N64() ? MVT::i64 : MVT::i32;
+ // Note that we don't need GP to point to the GOT for indirect calls
+ // (when R_MIPS_CALL* is not used for the call) because Mips linker generates
+ // lazy binding stub for a function only when R_MIPS_CALL* are the only relocs
+ // used for the function (that is, Mips linker doesn't generate lazy binding
+ // stub for a function whose address is taken in the program).
+ if (IsPICCall && !InternalLinkage && IsCallReloc) {
+ unsigned GPReg = ABI.IsN64() ? Mips::GP_64 : Mips::GP;
+ EVT Ty = ABI.IsN64() ? MVT::i64 : MVT::i32;
RegsToPass.push_back(std::make_pair(GPReg, getGlobalReg(CLI.DAG, Ty)));
}
RegsToPass[i].second.getValueType()));
// Add a register mask operand representing the call-preserved registers.
- const TargetRegisterInfo *TRI =
- getTargetMachine().getSubtargetImpl()->getRegisterInfo();
- const uint32_t *Mask = TRI->getCallPreservedMask(CLI.CallConv);
+ const TargetRegisterInfo *TRI = Subtarget.getRegisterInfo();
+ const uint32_t *Mask =
+ TRI->getCallPreservedMask(CLI.DAG.getMachineFunction(), CLI.CallConv);
assert(Mask && "Missing call preserved mask for calling convention");
if (Subtarget.inMips16HardFloat()) {
if (GlobalAddressSDNode *G = dyn_cast<GlobalAddressSDNode>(CLI.Callee)) {
MachineFunction &MF = DAG.getMachineFunction();
MachineFrameInfo *MFI = MF.getFrameInfo();
- const TargetFrameLowering *TFL = MF.getSubtarget().getFrameLowering();
+ const TargetFrameLowering *TFL = Subtarget.getFrameLowering();
MipsFunctionInfo *FuncInfo = MF.getInfo<MipsFunctionInfo>();
bool IsPIC = getTargetMachine().getRelocationModel() == Reloc::PIC_;
// Analyze operands of the call, assigning locations to each operand.
SmallVector<CCValAssign, 16> ArgLocs;
- CCState CCInfo(CallConv, IsVarArg, DAG.getMachineFunction(), ArgLocs,
- *DAG.getContext());
- MipsCC::SpecialCallingConvType SpecialCallingConv =
- getSpecialCallingConv(Callee);
- MipsCC MipsCCInfo(CallConv, Subtarget, CCInfo, SpecialCallingConv);
+ MipsCCState CCInfo(
+ CallConv, IsVarArg, DAG.getMachineFunction(), ArgLocs, *DAG.getContext(),
+ MipsCCState::getSpecialCallingConvForCallee(Callee.getNode(), Subtarget));
- MipsCCInfo.analyzeCallOperands(Outs, IsVarArg,
- Subtarget.abiUsesSoftFloat(),
- Callee.getNode(), CLI.getArgs());
+ // Allocate the reserved argument area. It seems strange to do this from the
+ // caller side but removing it breaks the frame size calculation.
+ CCInfo.AllocateStack(ABI.GetCalleeAllocdArgSizeInBytes(CallConv), 1);
+
+ CCInfo.AnalyzeCallOperands(Outs, CC_Mips, CLI.getArgs(), Callee.getNode());
// Get a count of how many bytes are to be pushed on the stack.
unsigned NextStackOffset = CCInfo.getNextStackOffset();
// Check if it's really possible to do a tail call.
if (IsTailCall)
- IsTailCall =
- isEligibleForTailCallOptimization(MipsCCInfo, NextStackOffset,
- *MF.getInfo<MipsFunctionInfo>());
+ IsTailCall = isEligibleForTailCallOptimization(
+ CCInfo, NextStackOffset, *MF.getInfo<MipsFunctionInfo>());
if (!IsTailCall && CLI.CS && CLI.CS->isMustTailCall())
report_fatal_error("failed to perform tail call elimination on a call "
// byval arguments to the stack.
unsigned StackAlignment = TFL->getStackAlignment();
NextStackOffset = RoundUpToAlignment(NextStackOffset, StackAlignment);
- SDValue NextStackOffsetVal = DAG.getIntPtrConstant(NextStackOffset, true);
+ SDValue NextStackOffsetVal = DAG.getIntPtrConstant(NextStackOffset, DL, true);
if (!IsTailCall)
Chain = DAG.getCALLSEQ_START(Chain, NextStackOffsetVal, DL);
- SDValue StackPtr = DAG.getCopyFromReg(
- Chain, DL, Subtarget.isABI_N64() ? Mips::SP_64 : Mips::SP,
- getPointerTy());
+ SDValue StackPtr =
+ DAG.getCopyFromReg(Chain, DL, ABI.IsN64() ? Mips::SP_64 : Mips::SP,
+ getPointerTy(DAG.getDataLayout()));
// With EABI is it possible to have 16 args on registers.
std::deque< std::pair<unsigned, SDValue> > RegsToPass;
SmallVector<SDValue, 8> MemOpChains;
- MipsCC::byval_iterator ByValArg = MipsCCInfo.byval_begin();
+
+ CCInfo.rewindByValRegsInfo();
// Walk the register/memloc assignments, inserting copies/loads.
for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) {
CCValAssign &VA = ArgLocs[i];
MVT ValVT = VA.getValVT(), LocVT = VA.getLocVT();
ISD::ArgFlagsTy Flags = Outs[i].Flags;
+ bool UseUpperBits = false;
// ByVal Arg.
if (Flags.isByVal()) {
+ unsigned FirstByValReg, LastByValReg;
+ unsigned ByValIdx = CCInfo.getInRegsParamsProcessed();
+ CCInfo.getInRegsParamInfo(ByValIdx, FirstByValReg, LastByValReg);
+
assert(Flags.getByValSize() &&
"ByVal args of size 0 should have been ignored by front-end.");
- assert(ByValArg != MipsCCInfo.byval_end());
+ assert(ByValIdx < CCInfo.getInRegsParamsCount());
assert(!IsTailCall &&
"Do not tail-call optimize if there is a byval argument.");
passByValArg(Chain, DL, RegsToPass, MemOpChains, StackPtr, MFI, DAG, Arg,
- MipsCCInfo, *ByValArg, Flags, Subtarget.isLittle());
- ++ByValArg;
+ FirstByValReg, LastByValReg, Flags, Subtarget.isLittle(),
+ VA);
+ CCInfo.nextInRegsParam();
continue;
}
// Promote the value if needed.
switch (VA.getLocInfo()) {
- default: llvm_unreachable("Unknown loc info!");
+ default:
+ llvm_unreachable("Unknown loc info!");
case CCValAssign::Full:
if (VA.isRegLoc()) {
if ((ValVT == MVT::f32 && LocVT == MVT::i32) ||
Arg = DAG.getNode(ISD::BITCAST, DL, LocVT, Arg);
else if (ValVT == MVT::f64 && LocVT == MVT::i32) {
SDValue Lo = DAG.getNode(MipsISD::ExtractElementF64, DL, MVT::i32,
- Arg, DAG.getConstant(0, MVT::i32));
+ Arg, DAG.getConstant(0, DL, MVT::i32));
SDValue Hi = DAG.getNode(MipsISD::ExtractElementF64, DL, MVT::i32,
- Arg, DAG.getConstant(1, MVT::i32));
+ Arg, DAG.getConstant(1, DL, MVT::i32));
if (!Subtarget.isLittle())
std::swap(Lo, Hi);
unsigned LocRegLo = VA.getLocReg();
}
}
break;
+ case CCValAssign::BCvt:
+ Arg = DAG.getNode(ISD::BITCAST, DL, LocVT, Arg);
+ break;
+ case CCValAssign::SExtUpper:
+ UseUpperBits = true;
+ // Fallthrough
case CCValAssign::SExt:
Arg = DAG.getNode(ISD::SIGN_EXTEND, DL, LocVT, Arg);
break;
+ case CCValAssign::ZExtUpper:
+ UseUpperBits = true;
+ // Fallthrough
case CCValAssign::ZExt:
Arg = DAG.getNode(ISD::ZERO_EXTEND, DL, LocVT, Arg);
break;
+ case CCValAssign::AExtUpper:
+ UseUpperBits = true;
+ // Fallthrough
case CCValAssign::AExt:
Arg = DAG.getNode(ISD::ANY_EXTEND, DL, LocVT, Arg);
break;
}
+ if (UseUpperBits) {
+ unsigned ValSizeInBits = Outs[i].ArgVT.getSizeInBits();
+ unsigned LocSizeInBits = VA.getLocVT().getSizeInBits();
+ Arg = DAG.getNode(
+ ISD::SHL, DL, VA.getLocVT(), Arg,
+ DAG.getConstant(LocSizeInBits - ValSizeInBits, DL, VA.getLocVT()));
+ }
+
// Arguments that can be passed on register must be kept at
// RegsToPass vector
if (VA.isRegLoc()) {
// If the callee is a GlobalAddress/ExternalSymbol node (quite common, every
// direct call is) turn it into a TargetGlobalAddress/TargetExternalSymbol
// node so that legalize doesn't hack it.
- bool IsPICCall =
- (Subtarget.isABI_N64() || IsPIC); // true if calls are translated to
- // jalr $25
- bool GlobalOrExternal = false, InternalLinkage = false;
+ bool IsPICCall = (ABI.IsN64() || IsPIC); // true if calls are translated to
+ // jalr $25
+ bool GlobalOrExternal = false, InternalLinkage = false, IsCallReloc = false;
SDValue CalleeLo;
EVT Ty = Callee.getValueType();
InternalLinkage = Val->hasInternalLinkage();
if (InternalLinkage)
- Callee = getAddrLocal(G, Ty, DAG,
- Subtarget.isABI_N32() || Subtarget.isABI_N64());
- else if (LargeGOT)
- Callee = getAddrGlobalLargeGOT(G, Ty, DAG, MipsII::MO_CALL_HI16,
+ Callee = getAddrLocal(G, DL, Ty, DAG, ABI.IsN32() || ABI.IsN64());
+ else if (LargeGOT) {
+ Callee = getAddrGlobalLargeGOT(G, DL, Ty, DAG, MipsII::MO_CALL_HI16,
MipsII::MO_CALL_LO16, Chain,
FuncInfo->callPtrInfo(Val));
- else
- Callee = getAddrGlobal(G, Ty, DAG, MipsII::MO_GOT_CALL, Chain,
+ IsCallReloc = true;
+ } else {
+ Callee = getAddrGlobal(G, DL, Ty, DAG, MipsII::MO_GOT_CALL, Chain,
FuncInfo->callPtrInfo(Val));
+ IsCallReloc = true;
+ }
} else
- Callee = DAG.getTargetGlobalAddress(G->getGlobal(), DL, getPointerTy(), 0,
+ Callee = DAG.getTargetGlobalAddress(G->getGlobal(), DL,
+ getPointerTy(DAG.getDataLayout()), 0,
MipsII::MO_NO_FLAG);
GlobalOrExternal = true;
}
else if (ExternalSymbolSDNode *S = dyn_cast<ExternalSymbolSDNode>(Callee)) {
const char *Sym = S->getSymbol();
- if (!Subtarget.isABI_N64() && !IsPIC) // !N64 && static
- Callee = DAG.getTargetExternalSymbol(Sym, getPointerTy(),
- MipsII::MO_NO_FLAG);
- else if (LargeGOT)
- Callee = getAddrGlobalLargeGOT(S, Ty, DAG, MipsII::MO_CALL_HI16,
+ if (!ABI.IsN64() && !IsPIC) // !N64 && static
+ Callee = DAG.getTargetExternalSymbol(
+ Sym, getPointerTy(DAG.getDataLayout()), MipsII::MO_NO_FLAG);
+ else if (LargeGOT) {
+ Callee = getAddrGlobalLargeGOT(S, DL, Ty, DAG, MipsII::MO_CALL_HI16,
MipsII::MO_CALL_LO16, Chain,
FuncInfo->callPtrInfo(Sym));
- else // N64 || PIC
- Callee = getAddrGlobal(S, Ty, DAG, MipsII::MO_GOT_CALL, Chain,
+ IsCallReloc = true;
+ } else { // N64 || PIC
+ Callee = getAddrGlobal(S, DL, Ty, DAG, MipsII::MO_GOT_CALL, Chain,
FuncInfo->callPtrInfo(Sym));
+ IsCallReloc = true;
+ }
GlobalOrExternal = true;
}
SDVTList NodeTys = DAG.getVTList(MVT::Other, MVT::Glue);
getOpndList(Ops, RegsToPass, IsPICCall, GlobalOrExternal, InternalLinkage,
- CLI, Callee, Chain);
+ IsCallReloc, CLI, Callee, Chain);
if (IsTailCall)
return DAG.getNode(MipsISD::TailCall, DL, MVT::Other, Ops);
// Create the CALLSEQ_END node.
Chain = DAG.getCALLSEQ_END(Chain, NextStackOffsetVal,
- DAG.getIntPtrConstant(0, true), InFlag, DL);
+ DAG.getIntPtrConstant(0, DL, true), InFlag, DL);
InFlag = Chain.getValue(1);
// Handle result values, copying them out of physregs into vregs that we
VA.getLocInfo() == CCValAssign::ZExtUpper ? ISD::SRL : ISD::SRA;
Val = DAG.getNode(
Shift, DL, VA.getLocVT(), Val,
- DAG.getConstant(LocSizeInBits - ValSizeInBits, VA.getLocVT()));
+ DAG.getConstant(LocSizeInBits - ValSizeInBits, DL, VA.getLocVT()));
}
switch (VA.getLocInfo()) {
return Chain;
}
+static SDValue UnpackFromArgumentSlot(SDValue Val, const CCValAssign &VA,
+ EVT ArgVT, SDLoc DL, SelectionDAG &DAG) {
+ MVT LocVT = VA.getLocVT();
+ EVT ValVT = VA.getValVT();
+
+ // Shift into the upper bits if necessary.
+ switch (VA.getLocInfo()) {
+ default:
+ break;
+ case CCValAssign::AExtUpper:
+ case CCValAssign::SExtUpper:
+ case CCValAssign::ZExtUpper: {
+ unsigned ValSizeInBits = ArgVT.getSizeInBits();
+ unsigned LocSizeInBits = VA.getLocVT().getSizeInBits();
+ unsigned Opcode =
+ VA.getLocInfo() == CCValAssign::ZExtUpper ? ISD::SRL : ISD::SRA;
+ Val = DAG.getNode(
+ Opcode, DL, VA.getLocVT(), Val,
+ DAG.getConstant(LocSizeInBits - ValSizeInBits, DL, VA.getLocVT()));
+ break;
+ }
+ }
+
+ // If this is an value smaller than the argument slot size (32-bit for O32,
+ // 64-bit for N32/N64), it has been promoted in some way to the argument slot
+ // size. Extract the value and insert any appropriate assertions regarding
+ // sign/zero extension.
+ switch (VA.getLocInfo()) {
+ default:
+ llvm_unreachable("Unknown loc info!");
+ case CCValAssign::Full:
+ break;
+ case CCValAssign::AExtUpper:
+ case CCValAssign::AExt:
+ Val = DAG.getNode(ISD::TRUNCATE, DL, ValVT, Val);
+ break;
+ case CCValAssign::SExtUpper:
+ case CCValAssign::SExt:
+ Val = DAG.getNode(ISD::AssertSext, DL, LocVT, Val, DAG.getValueType(ValVT));
+ Val = DAG.getNode(ISD::TRUNCATE, DL, ValVT, Val);
+ break;
+ case CCValAssign::ZExtUpper:
+ case CCValAssign::ZExt:
+ Val = DAG.getNode(ISD::AssertZext, DL, LocVT, Val, DAG.getValueType(ValVT));
+ Val = DAG.getNode(ISD::TRUNCATE, DL, ValVT, Val);
+ break;
+ case CCValAssign::BCvt:
+ Val = DAG.getNode(ISD::BITCAST, DL, ValVT, Val);
+ break;
+ }
+
+ return Val;
+}
+
//===----------------------------------------------------------------------===//
// Formal Arguments Calling Convention Implementation
//===----------------------------------------------------------------------===//
// Assign locations to all of the incoming arguments.
SmallVector<CCValAssign, 16> ArgLocs;
- CCState CCInfo(CallConv, IsVarArg, DAG.getMachineFunction(), ArgLocs,
- *DAG.getContext());
- MipsCC MipsCCInfo(CallConv, Subtarget, CCInfo);
- Function::const_arg_iterator FuncArg =
- DAG.getMachineFunction().getFunction()->arg_begin();
- bool UseSoftFloat = Subtarget.abiUsesSoftFloat();
-
- MipsCCInfo.analyzeFormalArguments(Ins, UseSoftFloat, FuncArg);
+ MipsCCState CCInfo(CallConv, IsVarArg, DAG.getMachineFunction(), ArgLocs,
+ *DAG.getContext());
+ CCInfo.AllocateStack(ABI.GetCalleeAllocdArgSizeInBytes(CallConv), 1);
+ const Function *Func = DAG.getMachineFunction().getFunction();
+ Function::const_arg_iterator FuncArg = Func->arg_begin();
+
+ if (Func->hasFnAttribute("interrupt") && !Func->arg_empty())
+ report_fatal_error(
+ "Functions with the interrupt attribute cannot have arguments!");
+
+ CCInfo.AnalyzeFormalArguments(Ins, CC_Mips_FixedArg);
MipsFI->setFormalArgInfo(CCInfo.getNextStackOffset(),
- MipsCCInfo.hasByValArg());
+ CCInfo.getInRegsParamsCount() > 0);
unsigned CurArgIdx = 0;
- MipsCC::byval_iterator ByValArg = MipsCCInfo.byval_begin();
+ CCInfo.rewindByValRegsInfo();
for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) {
CCValAssign &VA = ArgLocs[i];
- std::advance(FuncArg, Ins[i].OrigArgIndex - CurArgIdx);
- CurArgIdx = Ins[i].OrigArgIndex;
+ if (Ins[i].isOrigArg()) {
+ std::advance(FuncArg, Ins[i].getOrigArgIndex() - CurArgIdx);
+ CurArgIdx = Ins[i].getOrigArgIndex();
+ }
EVT ValVT = VA.getValVT();
ISD::ArgFlagsTy Flags = Ins[i].Flags;
bool IsRegLoc = VA.isRegLoc();
if (Flags.isByVal()) {
+ assert(Ins[i].isOrigArg() && "Byval arguments cannot be implicit");
+ unsigned FirstByValReg, LastByValReg;
+ unsigned ByValIdx = CCInfo.getInRegsParamsProcessed();
+ CCInfo.getInRegsParamInfo(ByValIdx, FirstByValReg, LastByValReg);
+
assert(Flags.getByValSize() &&
"ByVal args of size 0 should have been ignored by front-end.");
- assert(ByValArg != MipsCCInfo.byval_end());
+ assert(ByValIdx < CCInfo.getInRegsParamsCount());
copyByValRegs(Chain, DL, OutChains, DAG, Flags, InVals, &*FuncArg,
- MipsCCInfo, *ByValArg);
- ++ByValArg;
+ FirstByValReg, LastByValReg, VA, CCInfo);
+ CCInfo.nextInRegsParam();
continue;
}
unsigned Reg = addLiveIn(DAG.getMachineFunction(), ArgReg, RC);
SDValue ArgValue = DAG.getCopyFromReg(Chain, DL, Reg, RegVT);
- // If this is an 8 or 16-bit value, it has been passed promoted
- // to 32 bits. Insert an assert[sz]ext to capture this, then
- // truncate to the right size.
- if (VA.getLocInfo() != CCValAssign::Full) {
- unsigned Opcode = 0;
- if (VA.getLocInfo() == CCValAssign::SExt)
- Opcode = ISD::AssertSext;
- else if (VA.getLocInfo() == CCValAssign::ZExt)
- Opcode = ISD::AssertZext;
- if (Opcode)
- ArgValue = DAG.getNode(Opcode, DL, RegVT, ArgValue,
- DAG.getValueType(ValVT));
- ArgValue = DAG.getNode(ISD::TRUNCATE, DL, ValVT, ArgValue);
- }
+ ArgValue = UnpackFromArgumentSlot(ArgValue, VA, Ins[i].ArgVT, DL, DAG);
// Handle floating point arguments passed in integer registers and
// long double arguments passed in floating point registers.
(RegVT == MVT::i64 && ValVT == MVT::f64) ||
(RegVT == MVT::f64 && ValVT == MVT::i64))
ArgValue = DAG.getNode(ISD::BITCAST, DL, ValVT, ArgValue);
- else if (Subtarget.isABI_O32() && RegVT == MVT::i32 &&
+ else if (ABI.IsO32() && RegVT == MVT::i32 &&
ValVT == MVT::f64) {
unsigned Reg2 = addLiveIn(DAG.getMachineFunction(),
getNextIntArgReg(ArgReg), RC);
InVals.push_back(ArgValue);
} else { // VA.isRegLoc()
+ MVT LocVT = VA.getLocVT();
+
+ if (ABI.IsO32()) {
+ // We ought to be able to use LocVT directly but O32 sets it to i32
+ // when allocating floating point values to integer registers.
+ // This shouldn't influence how we load the value into registers unless
+ // we are targeting softfloat.
+ if (VA.getValVT().isFloatingPoint() && !Subtarget.useSoftFloat())
+ LocVT = VA.getValVT();
+ }
// sanity check
assert(VA.isMemLoc());
// The stack pointer offset is relative to the caller stack frame.
- int FI = MFI->CreateFixedObject(ValVT.getSizeInBits()/8,
+ int FI = MFI->CreateFixedObject(LocVT.getSizeInBits() / 8,
VA.getLocMemOffset(), true);
// Create load nodes to retrieve arguments from the stack
- SDValue FIN = DAG.getFrameIndex(FI, getPointerTy());
- SDValue Load = DAG.getLoad(ValVT, DL, Chain, FIN,
- MachinePointerInfo::getFixedStack(FI),
- false, false, false, 0);
- InVals.push_back(Load);
- OutChains.push_back(Load.getValue(1));
+ SDValue FIN = DAG.getFrameIndex(FI, getPointerTy(DAG.getDataLayout()));
+ SDValue ArgValue = DAG.getLoad(
+ LocVT, DL, Chain, FIN,
+ MachinePointerInfo::getFixedStack(DAG.getMachineFunction(), FI),
+ false, false, false, 0);
+ OutChains.push_back(ArgValue.getValue(1));
+
+ ArgValue = UnpackFromArgumentSlot(ArgValue, VA, Ins[i].ArgVT, DL, DAG);
+
+ InVals.push_back(ArgValue);
}
}
unsigned Reg = MipsFI->getSRetReturnReg();
if (!Reg) {
Reg = MF.getRegInfo().createVirtualRegister(
- getRegClassFor(Subtarget.isABI_N64() ? MVT::i64 : MVT::i32));
+ getRegClassFor(ABI.IsN64() ? MVT::i64 : MVT::i32));
MipsFI->setSRetReturnReg(Reg);
}
SDValue Copy = DAG.getCopyToReg(DAG.getEntryNode(), DL, Reg, InVals[i]);
}
if (IsVarArg)
- writeVarArgRegs(OutChains, MipsCCInfo, Chain, DL, DAG);
+ writeVarArgRegs(OutChains, Chain, DL, DAG, CCInfo);
// All stores are grouped in one node to allow the matching between
// the size of Ins and InVals. This only happens when on varg functions
return CCInfo.CheckReturn(Outs, RetCC_Mips);
}
+bool
+MipsTargetLowering::shouldSignExtendTypeInLibCall(EVT Type, bool IsSigned) const {
+ if (Subtarget.hasMips3() && Subtarget.useSoftFloat()) {
+ if (Type == MVT::i32)
+ return true;
+ }
+ return IsSigned;
+}
+
+SDValue
+MipsTargetLowering::LowerInterruptReturn(SmallVectorImpl<SDValue> &RetOps,
+ SDLoc DL, SelectionDAG &DAG) const {
+
+ MachineFunction &MF = DAG.getMachineFunction();
+ MipsFunctionInfo *MipsFI = MF.getInfo<MipsFunctionInfo>();
+
+ MipsFI->setISR();
+
+ return DAG.getNode(MipsISD::ERet, DL, MVT::Other, RetOps);
+}
+
SDValue
-MipsTargetLowering::LowerReturn(SDValue Chain,
- CallingConv::ID CallConv, bool IsVarArg,
+MipsTargetLowering::LowerReturn(SDValue Chain, CallingConv::ID CallConv,
+ bool IsVarArg,
const SmallVectorImpl<ISD::OutputArg> &Outs,
const SmallVectorImpl<SDValue> &OutVals,
SDLoc DL, SelectionDAG &DAG) const {
// CCState - Info about the registers and stack slot.
MipsCCState CCInfo(CallConv, IsVarArg, MF, RVLocs, *DAG.getContext());
- MipsCC MipsCCInfo(CallConv, Subtarget, CCInfo);
// Analyze return values.
CCInfo.AnalyzeReturn(Outs, RetCC_Mips);
unsigned LocSizeInBits = VA.getLocVT().getSizeInBits();
Val = DAG.getNode(
ISD::SHL, DL, VA.getLocVT(), Val,
- DAG.getConstant(LocSizeInBits - ValSizeInBits, VA.getLocVT()));
+ DAG.getConstant(LocSizeInBits - ValSizeInBits, DL, VA.getLocVT()));
}
Chain = DAG.getCopyToReg(Chain, DL, VA.getLocReg(), Val, Flag);
if (!Reg)
llvm_unreachable("sret virtual register not created in the entry block");
- SDValue Val = DAG.getCopyFromReg(Chain, DL, Reg, getPointerTy());
- unsigned V0 = Subtarget.isABI_N64() ? Mips::V0_64 : Mips::V0;
+ SDValue Val =
+ DAG.getCopyFromReg(Chain, DL, Reg, getPointerTy(DAG.getDataLayout()));
+ unsigned V0 = ABI.IsN64() ? Mips::V0_64 : Mips::V0;
Chain = DAG.getCopyToReg(Chain, DL, V0, Val, Flag);
Flag = Chain.getValue(1);
- RetOps.push_back(DAG.getRegister(V0, getPointerTy()));
+ RetOps.push_back(DAG.getRegister(V0, getPointerTy(DAG.getDataLayout())));
}
RetOps[0] = Chain; // Update chain.
if (Flag.getNode())
RetOps.push_back(Flag);
- // Return on Mips is always a "jr $ra"
+ // ISRs must use "eret".
+ if (DAG.getMachineFunction().getFunction()->hasFnAttribute("interrupt"))
+ return LowerInterruptReturn(RetOps, DL, DAG);
+
+ // Standard return on Mips is a "jr $ra"
return DAG.getNode(MipsISD::Ret, DL, MVT::Other, RetOps);
}
/// getConstraintType - Given a constraint letter, return the type of
/// constraint it is for this target.
-MipsTargetLowering::ConstraintType MipsTargetLowering::
-getConstraintType(const std::string &Constraint) const
-{
+MipsTargetLowering::ConstraintType
+MipsTargetLowering::getConstraintType(StringRef Constraint) const {
// Mips specific constraints
// GCC config/mips/constraints.md
//
return C_Memory;
}
}
+
+ if (Constraint == "ZC")
+ return C_Memory;
+
return TargetLowering::getConstraintType(Constraint);
}
/// into non-numeric and numeric parts (Prefix and Reg). The first boolean flag
/// that is returned indicates whether parsing was successful. The second flag
/// is true if the numeric part exists.
-static std::pair<bool, bool>
-parsePhysicalReg(StringRef C, std::string &Prefix,
- unsigned long long &Reg) {
+static std::pair<bool, bool> parsePhysicalReg(StringRef C, StringRef &Prefix,
+ unsigned long long &Reg) {
if (C.front() != '{' || C.back() != '}')
return std::make_pair(false, false);
StringRef::const_iterator I, B = C.begin() + 1, E = C.end() - 1;
I = std::find_if(B, E, std::ptr_fun(isdigit));
- Prefix.assign(B, I - B);
+ Prefix = StringRef(B, I - B);
// The second flag is set to false if no numeric characters were found.
if (I == E)
std::pair<unsigned, const TargetRegisterClass *> MipsTargetLowering::
parseRegForInlineAsmConstraint(StringRef C, MVT VT) const {
const TargetRegisterInfo *TRI =
- getTargetMachine().getSubtargetImpl()->getRegisterInfo();
+ Subtarget.getRegisterInfo();
const TargetRegisterClass *RC;
- std::string Prefix;
+ StringRef Prefix;
unsigned long long Reg;
std::pair<bool, bool> R = parsePhysicalReg(C, Prefix, Reg);
RC = TRI->getRegClass(Prefix == "hi" ?
Mips::HI32RegClassID : Mips::LO32RegClassID);
return std::make_pair(*(RC->begin()), RC);
- } else if (Prefix.compare(0, 4, "$msa") == 0) {
+ } else if (Prefix.startswith("$msa")) {
// Parse $msa(ir|csr|access|save|modify|request|map|unmap)
// No numeric characters follow the name.
/// Given a register class constraint, like 'r', if this corresponds directly
/// to an LLVM register class, return a register of 0 and the register class
/// pointer.
-std::pair<unsigned, const TargetRegisterClass*> MipsTargetLowering::
-getRegForInlineAsmConstraint(const std::string &Constraint, MVT VT) const
-{
+std::pair<unsigned, const TargetRegisterClass *>
+MipsTargetLowering::getRegForInlineAsmConstraint(const TargetRegisterInfo *TRI,
+ StringRef Constraint,
+ MVT VT) const {
if (Constraint.size() == 1) {
switch (Constraint[0]) {
case 'd': // Address register. Same as 'r' unless generating MIPS16 code.
if (R.second)
return R;
- return TargetLowering::getRegForInlineAsmConstraint(Constraint, VT);
+ return TargetLowering::getRegForInlineAsmConstraint(TRI, Constraint, VT);
}
/// LowerAsmOperandForConstraint - Lower the specified operand into the Ops
std::string &Constraint,
std::vector<SDValue>&Ops,
SelectionDAG &DAG) const {
+ SDLoc DL(Op);
SDValue Result;
// Only support length 1 constraints for now.
EVT Type = Op.getValueType();
int64_t Val = C->getSExtValue();
if (isInt<16>(Val)) {
- Result = DAG.getTargetConstant(Val, Type);
+ Result = DAG.getTargetConstant(Val, DL, Type);
break;
}
}
EVT Type = Op.getValueType();
int64_t Val = C->getZExtValue();
if (Val == 0) {
- Result = DAG.getTargetConstant(0, Type);
+ Result = DAG.getTargetConstant(0, DL, Type);
break;
}
}
EVT Type = Op.getValueType();
uint64_t Val = (uint64_t)C->getZExtValue();
if (isUInt<16>(Val)) {
- Result = DAG.getTargetConstant(Val, Type);
+ Result = DAG.getTargetConstant(Val, DL, Type);
break;
}
}
EVT Type = Op.getValueType();
int64_t Val = C->getSExtValue();
if ((isInt<32>(Val)) && ((Val & 0xffff) == 0)){
- Result = DAG.getTargetConstant(Val, Type);
+ Result = DAG.getTargetConstant(Val, DL, Type);
break;
}
}
EVT Type = Op.getValueType();
int64_t Val = C->getSExtValue();
if ((Val >= -65535) && (Val <= -1)) {
- Result = DAG.getTargetConstant(Val, Type);
+ Result = DAG.getTargetConstant(Val, DL, Type);
break;
}
}
EVT Type = Op.getValueType();
int64_t Val = C->getSExtValue();
if ((isInt<15>(Val))) {
- Result = DAG.getTargetConstant(Val, Type);
+ Result = DAG.getTargetConstant(Val, DL, Type);
break;
}
}
EVT Type = Op.getValueType();
int64_t Val = C->getSExtValue();
if ((Val <= 65535) && (Val >= 1)) {
- Result = DAG.getTargetConstant(Val, Type);
+ Result = DAG.getTargetConstant(Val, DL, Type);
break;
}
}
TargetLowering::LowerAsmOperandForConstraint(Op, Constraint, Ops, DAG);
}
-bool MipsTargetLowering::isLegalAddressingMode(const AddrMode &AM,
- Type *Ty) const {
+bool MipsTargetLowering::isLegalAddressingMode(const DataLayout &DL,
+ const AddrMode &AM, Type *Ty,
+ unsigned AS) const {
// No global is ever allowed as a base.
if (AM.BaseGV)
return false;
}
unsigned MipsTargetLowering::getJumpTableEncoding() const {
- if (Subtarget.isABI_N64())
+ if (ABI.IsN64())
return MachineJumpTableInfo::EK_GPRel64BlockAddress;
return TargetLowering::getJumpTableEncoding();
}
-/// This function returns true if CallSym is a long double emulation routine.
-static bool isF128SoftLibCall(const char *CallSym) {
- const char *const LibCalls[] =
- {"__addtf3", "__divtf3", "__eqtf2", "__extenddftf2", "__extendsftf2",
- "__fixtfdi", "__fixtfsi", "__fixtfti", "__fixunstfdi", "__fixunstfsi",
- "__fixunstfti", "__floatditf", "__floatsitf", "__floattitf",
- "__floatunditf", "__floatunsitf", "__floatuntitf", "__getf2", "__gttf2",
- "__letf2", "__lttf2", "__multf3", "__netf2", "__powitf2", "__subtf3",
- "__trunctfdf2", "__trunctfsf2", "__unordtf2",
- "ceill", "copysignl", "cosl", "exp2l", "expl", "floorl", "fmal", "fmodl",
- "log10l", "log2l", "logl", "nearbyintl", "powl", "rintl", "sinl", "sqrtl",
- "truncl"};
-
- const char *const *End = LibCalls + array_lengthof(LibCalls);
-
- // Check that LibCalls is sorted alphabetically.
- MipsTargetLowering::LTStr Comp;
-
-#ifndef NDEBUG
- for (const char *const *I = LibCalls; I < End - 1; ++I)
- assert(Comp(*I, *(I + 1)));
-#endif
-
- return std::binary_search(LibCalls, End, CallSym, Comp);
-}
-
-/// This function returns true if Ty is fp128 or i128 which was originally a
-/// fp128.
-static bool originalTypeIsF128(const Type *Ty, const SDNode *CallNode) {
- if (Ty->isFP128Ty())
- return true;
-
- const ExternalSymbolSDNode *ES =
- dyn_cast_or_null<const ExternalSymbolSDNode>(CallNode);
-
- // If the Ty is i128 and the function being called is a long double emulation
- // routine, then the original type is f128.
- return (ES && Ty->isIntegerTy(128) && isF128SoftLibCall(ES->getSymbol()));
-}
-
-MipsTargetLowering::MipsCC::SpecialCallingConvType
- MipsTargetLowering::getSpecialCallingConv(SDValue Callee) const {
- MipsCC::SpecialCallingConvType SpecialCallingConv =
- MipsCC::NoSpecialCallingConv;
- if (Subtarget.inMips16HardFloat()) {
- if (GlobalAddressSDNode *G = dyn_cast<GlobalAddressSDNode>(Callee)) {
- llvm::StringRef Sym = G->getGlobal()->getName();
- Function *F = G->getGlobal()->getParent()->getFunction(Sym);
- if (F && F->hasFnAttribute("__Mips16RetHelper")) {
- SpecialCallingConv = MipsCC::Mips16RetHelperConv;
- }
- }
- }
- return SpecialCallingConv;
-}
-
-MipsTargetLowering::MipsCC::MipsCC(
- CallingConv::ID CC, const MipsSubtarget &Subtarget_, CCState &Info,
- MipsCC::SpecialCallingConvType SpecialCallingConv_)
- : CCInfo(Info), CallConv(CC), Subtarget(Subtarget_),
- SpecialCallingConv(SpecialCallingConv_) {
- // Pre-allocate reserved argument area.
- CCInfo.AllocateStack(reservedArgArea(), 1);
-}
-
-
-void MipsTargetLowering::MipsCC::
-analyzeCallOperands(const SmallVectorImpl<ISD::OutputArg> &Args,
- bool IsVarArg, bool IsSoftFloat, const SDNode *CallNode,
- std::vector<ArgListEntry> &FuncArgs) {
- assert((CallConv != CallingConv::Fast || !IsVarArg) &&
- "CallingConv::Fast shouldn't be used for vararg functions.");
-
- unsigned NumOpnds = Args.size();
- llvm::CCAssignFn *FixedFn = fixedArgFn(), *VarFn = varArgFn();
-
- for (unsigned I = 0; I != NumOpnds; ++I) {
- MVT ArgVT = Args[I].VT;
- ISD::ArgFlagsTy ArgFlags = Args[I].Flags;
- bool R;
-
- if (ArgFlags.isByVal()) {
- handleByValArg(I, ArgVT, ArgVT, CCValAssign::Full, ArgFlags);
- continue;
- }
-
- if (IsVarArg && !Args[I].IsFixed)
- R = VarFn(I, ArgVT, ArgVT, CCValAssign::Full, ArgFlags, CCInfo);
- else {
- MVT RegVT = getRegVT(ArgVT, FuncArgs[Args[I].OrigArgIndex].Ty, CallNode,
- IsSoftFloat);
- R = FixedFn(I, ArgVT, RegVT, CCValAssign::Full, ArgFlags, CCInfo);
- }
-
- if (R) {
-#ifndef NDEBUG
- dbgs() << "Call operand #" << I << " has unhandled type "
- << EVT(ArgVT).getEVTString();
-#endif
- llvm_unreachable(nullptr);
- }
- }
+bool MipsTargetLowering::useSoftFloat() const {
+ return Subtarget.useSoftFloat();
}
-void MipsTargetLowering::MipsCC::
-analyzeFormalArguments(const SmallVectorImpl<ISD::InputArg> &Args,
- bool IsSoftFloat, Function::const_arg_iterator FuncArg) {
- unsigned NumArgs = Args.size();
- llvm::CCAssignFn *FixedFn = fixedArgFn();
- unsigned CurArgIdx = 0;
-
- for (unsigned I = 0; I != NumArgs; ++I) {
- MVT ArgVT = Args[I].VT;
- ISD::ArgFlagsTy ArgFlags = Args[I].Flags;
- std::advance(FuncArg, Args[I].OrigArgIndex - CurArgIdx);
- CurArgIdx = Args[I].OrigArgIndex;
-
- if (ArgFlags.isByVal()) {
- handleByValArg(I, ArgVT, ArgVT, CCValAssign::Full, ArgFlags);
- continue;
- }
-
- MVT RegVT = getRegVT(ArgVT, FuncArg->getType(), nullptr, IsSoftFloat);
-
- if (!FixedFn(I, ArgVT, RegVT, CCValAssign::Full, ArgFlags, CCInfo))
- continue;
-
-#ifndef NDEBUG
- dbgs() << "Formal Arg #" << I << " has unhandled type "
- << EVT(ArgVT).getEVTString();
-#endif
- llvm_unreachable(nullptr);
- }
-}
-
-void MipsTargetLowering::MipsCC::handleByValArg(unsigned ValNo, MVT ValVT,
- MVT LocVT,
- CCValAssign::LocInfo LocInfo,
- ISD::ArgFlagsTy ArgFlags) {
- assert(ArgFlags.getByValSize() && "Byval argument's size shouldn't be 0.");
-
- struct ByValArgInfo ByVal;
- unsigned RegSizeInBytes = Subtarget.getGPRSizeInBytes();
- unsigned ByValSize =
- RoundUpToAlignment(ArgFlags.getByValSize(), RegSizeInBytes);
- unsigned Align = std::min(std::max(ArgFlags.getByValAlign(), RegSizeInBytes),
- RegSizeInBytes * 2);
-
- if (useRegsForByval())
- allocateRegs(ByVal, ByValSize, Align);
-
- // Allocate space on caller's stack.
- ByVal.Address =
- CCInfo.AllocateStack(ByValSize - RegSizeInBytes * ByVal.NumRegs, Align);
- CCInfo.addLoc(CCValAssign::getMem(ValNo, ValVT, ByVal.Address, LocVT,
- LocInfo));
- ByValArgs.push_back(ByVal);
-}
-
-unsigned MipsTargetLowering::MipsCC::reservedArgArea() const {
- return (Subtarget.isABI_O32() && (CallConv != CallingConv::Fast)) ? 16 : 0;
-}
-
-const ArrayRef<MCPhysReg> MipsTargetLowering::MipsCC::intArgRegs() const {
- if (Subtarget.isABI_O32())
- return makeArrayRef(O32IntRegs);
- return makeArrayRef(Mips64IntRegs);
-}
-
-llvm::CCAssignFn *MipsTargetLowering::MipsCC::fixedArgFn() const {
- if (CallConv == CallingConv::Fast)
- return CC_Mips_FastCC;
-
- if (SpecialCallingConv == Mips16RetHelperConv)
- return CC_Mips16RetHelper;
- return Subtarget.isABI_O32()
- ? (Subtarget.isFP64bit() ? CC_MipsO32_FP64 : CC_MipsO32_FP32)
- : CC_MipsN;
-}
-
-llvm::CCAssignFn *MipsTargetLowering::MipsCC::varArgFn() const {
- return Subtarget.isABI_O32()
- ? (Subtarget.isFP64bit() ? CC_MipsO32_FP64 : CC_MipsO32_FP32)
- : CC_MipsN_VarArg;
-}
-
-const MCPhysReg *MipsTargetLowering::MipsCC::shadowRegs() const {
- return Subtarget.isABI_O32() ? O32IntRegs : Mips64DPRegs;
-}
-
-void MipsTargetLowering::MipsCC::allocateRegs(ByValArgInfo &ByVal,
- unsigned ByValSize,
- unsigned Align) {
- unsigned RegSizeInBytes = Subtarget.getGPRSizeInBytes();
- const ArrayRef<MCPhysReg> IntArgRegs = intArgRegs();
- const MCPhysReg *ShadowRegs = shadowRegs();
- assert(!(ByValSize % RegSizeInBytes) && !(Align % RegSizeInBytes) &&
- "Byval argument's size and alignment should be a multiple of"
- "RegSizeInBytes.");
-
- ByVal.FirstIdx =
- CCInfo.getFirstUnallocated(IntArgRegs.data(), IntArgRegs.size());
-
- // If Align > RegSizeInBytes, the first arg register must be even.
- if ((Align > RegSizeInBytes) && (ByVal.FirstIdx % 2)) {
- CCInfo.AllocateReg(IntArgRegs[ByVal.FirstIdx], ShadowRegs[ByVal.FirstIdx]);
- ++ByVal.FirstIdx;
- }
-
- // Mark the registers allocated.
- for (unsigned I = ByVal.FirstIdx; ByValSize && (I < IntArgRegs.size());
- ByValSize -= RegSizeInBytes, ++I, ++ByVal.NumRegs)
- CCInfo.AllocateReg(IntArgRegs[I], ShadowRegs[I]);
-}
-
-MVT MipsTargetLowering::MipsCC::getRegVT(MVT VT, const Type *OrigTy,
- const SDNode *CallNode,
- bool IsSoftFloat) const {
- if (IsSoftFloat || Subtarget.isABI_O32())
- return VT;
-
- // Check if the original type was fp128.
- if (originalTypeIsF128(OrigTy, CallNode)) {
- assert(VT == MVT::i64);
- return MVT::f64;
- }
-
- return VT;
-}
-
-void MipsTargetLowering::
-copyByValRegs(SDValue Chain, SDLoc DL, std::vector<SDValue> &OutChains,
- SelectionDAG &DAG, const ISD::ArgFlagsTy &Flags,
- SmallVectorImpl<SDValue> &InVals, const Argument *FuncArg,
- const MipsCC &CC, const ByValArgInfo &ByVal) const {
+void MipsTargetLowering::copyByValRegs(
+ SDValue Chain, SDLoc DL, std::vector<SDValue> &OutChains, SelectionDAG &DAG,
+ const ISD::ArgFlagsTy &Flags, SmallVectorImpl<SDValue> &InVals,
+ const Argument *FuncArg, unsigned FirstReg, unsigned LastReg,
+ const CCValAssign &VA, MipsCCState &State) const {
MachineFunction &MF = DAG.getMachineFunction();
MachineFrameInfo *MFI = MF.getFrameInfo();
unsigned GPRSizeInBytes = Subtarget.getGPRSizeInBytes();
- unsigned RegAreaSize = ByVal.NumRegs * GPRSizeInBytes;
+ unsigned NumRegs = LastReg - FirstReg;
+ unsigned RegAreaSize = NumRegs * GPRSizeInBytes;
unsigned FrameObjSize = std::max(Flags.getByValSize(), RegAreaSize);
int FrameObjOffset;
+ ArrayRef<MCPhysReg> ByValArgRegs = ABI.GetByValArgRegs();
if (RegAreaSize)
FrameObjOffset =
- (int)CC.reservedArgArea() -
- (int)((CC.intArgRegs().size() - ByVal.FirstIdx) * GPRSizeInBytes);
+ (int)ABI.GetCalleeAllocdArgSizeInBytes(State.getCallingConv()) -
+ (int)((ByValArgRegs.size() - FirstReg) * GPRSizeInBytes);
else
- FrameObjOffset = ByVal.Address;
+ FrameObjOffset = VA.getLocMemOffset();
// Create frame object.
- EVT PtrTy = getPointerTy();
+ EVT PtrTy = getPointerTy(DAG.getDataLayout());
int FI = MFI->CreateFixedObject(FrameObjSize, FrameObjOffset, true);
SDValue FIN = DAG.getFrameIndex(FI, PtrTy);
InVals.push_back(FIN);
- if (!ByVal.NumRegs)
+ if (!NumRegs)
return;
// Copy arg registers.
MVT RegTy = MVT::getIntegerVT(GPRSizeInBytes * 8);
const TargetRegisterClass *RC = getRegClassFor(RegTy);
- for (unsigned I = 0; I < ByVal.NumRegs; ++I) {
- unsigned ArgReg = CC.intArgRegs()[ByVal.FirstIdx + I];
+ for (unsigned I = 0; I < NumRegs; ++I) {
+ unsigned ArgReg = ByValArgRegs[FirstReg + I];
unsigned VReg = addLiveIn(MF, ArgReg, RC);
unsigned Offset = I * GPRSizeInBytes;
SDValue StorePtr = DAG.getNode(ISD::ADD, DL, PtrTy, FIN,
- DAG.getConstant(Offset, PtrTy));
+ DAG.getConstant(Offset, DL, PtrTy));
SDValue Store = DAG.getStore(Chain, DL, DAG.getRegister(VReg, RegTy),
StorePtr, MachinePointerInfo(FuncArg, Offset),
false, false, 0);
}
// Copy byVal arg to registers and stack.
-void MipsTargetLowering::
-passByValArg(SDValue Chain, SDLoc DL,
- std::deque< std::pair<unsigned, SDValue> > &RegsToPass,
- SmallVectorImpl<SDValue> &MemOpChains, SDValue StackPtr,
- MachineFrameInfo *MFI, SelectionDAG &DAG, SDValue Arg,
- const MipsCC &CC, const ByValArgInfo &ByVal,
- const ISD::ArgFlagsTy &Flags, bool isLittle) const {
+void MipsTargetLowering::passByValArg(
+ SDValue Chain, SDLoc DL,
+ std::deque<std::pair<unsigned, SDValue>> &RegsToPass,
+ SmallVectorImpl<SDValue> &MemOpChains, SDValue StackPtr,
+ MachineFrameInfo *MFI, SelectionDAG &DAG, SDValue Arg, unsigned FirstReg,
+ unsigned LastReg, const ISD::ArgFlagsTy &Flags, bool isLittle,
+ const CCValAssign &VA) const {
unsigned ByValSizeInBytes = Flags.getByValSize();
unsigned OffsetInBytes = 0; // From beginning of struct
unsigned RegSizeInBytes = Subtarget.getGPRSizeInBytes();
unsigned Alignment = std::min(Flags.getByValAlign(), RegSizeInBytes);
- EVT PtrTy = getPointerTy(), RegTy = MVT::getIntegerVT(RegSizeInBytes * 8);
+ EVT PtrTy = getPointerTy(DAG.getDataLayout()),
+ RegTy = MVT::getIntegerVT(RegSizeInBytes * 8);
+ unsigned NumRegs = LastReg - FirstReg;
- if (ByVal.NumRegs) {
- const ArrayRef<MCPhysReg> ArgRegs = CC.intArgRegs();
- bool LeftoverBytes = (ByVal.NumRegs * RegSizeInBytes > ByValSizeInBytes);
+ if (NumRegs) {
+ ArrayRef<MCPhysReg> ArgRegs = ABI.GetByValArgRegs();
+ bool LeftoverBytes = (NumRegs * RegSizeInBytes > ByValSizeInBytes);
unsigned I = 0;
// Copy words to registers.
- for (; I < ByVal.NumRegs - LeftoverBytes;
- ++I, OffsetInBytes += RegSizeInBytes) {
+ for (; I < NumRegs - LeftoverBytes; ++I, OffsetInBytes += RegSizeInBytes) {
SDValue LoadPtr = DAG.getNode(ISD::ADD, DL, PtrTy, Arg,
- DAG.getConstant(OffsetInBytes, PtrTy));
+ DAG.getConstant(OffsetInBytes, DL, PtrTy));
SDValue LoadVal = DAG.getLoad(RegTy, DL, Chain, LoadPtr,
MachinePointerInfo(), false, false, false,
Alignment);
MemOpChains.push_back(LoadVal.getValue(1));
- unsigned ArgReg = ArgRegs[ByVal.FirstIdx + I];
+ unsigned ArgReg = ArgRegs[FirstReg + I];
RegsToPass.push_back(std::make_pair(ArgReg, LoadVal));
}
// Copy the remainder of the byval argument with sub-word loads and shifts.
if (LeftoverBytes) {
- assert((ByValSizeInBytes > OffsetInBytes) &&
- (ByValSizeInBytes < OffsetInBytes + RegSizeInBytes) &&
- "Size of the remainder should be smaller than RegSizeInBytes.");
SDValue Val;
for (unsigned LoadSizeInBytes = RegSizeInBytes / 2, TotalBytesLoaded = 0;
// Load subword.
SDValue LoadPtr = DAG.getNode(ISD::ADD, DL, PtrTy, Arg,
- DAG.getConstant(OffsetInBytes, PtrTy));
+ DAG.getConstant(OffsetInBytes, DL,
+ PtrTy));
SDValue LoadVal = DAG.getExtLoad(
ISD::ZEXTLOAD, DL, RegTy, Chain, LoadPtr, MachinePointerInfo(),
MVT::getIntegerVT(LoadSizeInBytes * 8), false, false, false,
Shamt = (RegSizeInBytes - (TotalBytesLoaded + LoadSizeInBytes)) * 8;
SDValue Shift = DAG.getNode(ISD::SHL, DL, RegTy, LoadVal,
- DAG.getConstant(Shamt, MVT::i32));
+ DAG.getConstant(Shamt, DL, MVT::i32));
if (Val.getNode())
Val = DAG.getNode(ISD::OR, DL, RegTy, Val, Shift);
Alignment = std::min(Alignment, LoadSizeInBytes);
}
- unsigned ArgReg = ArgRegs[ByVal.FirstIdx + I];
+ unsigned ArgReg = ArgRegs[FirstReg + I];
RegsToPass.push_back(std::make_pair(ArgReg, Val));
return;
}
// Copy remainder of byval arg to it with memcpy.
unsigned MemCpySize = ByValSizeInBytes - OffsetInBytes;
SDValue Src = DAG.getNode(ISD::ADD, DL, PtrTy, Arg,
- DAG.getConstant(OffsetInBytes, PtrTy));
+ DAG.getConstant(OffsetInBytes, DL, PtrTy));
SDValue Dst = DAG.getNode(ISD::ADD, DL, PtrTy, StackPtr,
- DAG.getIntPtrConstant(ByVal.Address));
- Chain = DAG.getMemcpy(Chain, DL, Dst, Src, DAG.getConstant(MemCpySize, PtrTy),
+ DAG.getIntPtrConstant(VA.getLocMemOffset(), DL));
+ Chain = DAG.getMemcpy(Chain, DL, Dst, Src,
+ DAG.getConstant(MemCpySize, DL, PtrTy),
Alignment, /*isVolatile=*/false, /*AlwaysInline=*/false,
+ /*isTailCall=*/false,
MachinePointerInfo(), MachinePointerInfo());
MemOpChains.push_back(Chain);
}
void MipsTargetLowering::writeVarArgRegs(std::vector<SDValue> &OutChains,
- const MipsCC &CC, SDValue Chain,
- SDLoc DL, SelectionDAG &DAG) const {
- const ArrayRef<MCPhysReg> ArgRegs = CC.intArgRegs();
- const CCState &CCInfo = CC.getCCInfo();
- unsigned Idx = CCInfo.getFirstUnallocated(ArgRegs.data(), ArgRegs.size());
+ SDValue Chain, SDLoc DL,
+ SelectionDAG &DAG,
+ CCState &State) const {
+ ArrayRef<MCPhysReg> ArgRegs = ABI.GetVarArgRegs();
+ unsigned Idx = State.getFirstUnallocated(ArgRegs);
unsigned RegSizeInBytes = Subtarget.getGPRSizeInBytes();
MVT RegTy = MVT::getIntegerVT(RegSizeInBytes * 8);
const TargetRegisterClass *RC = getRegClassFor(RegTy);
if (ArgRegs.size() == Idx)
VaArgOffset =
- RoundUpToAlignment(CCInfo.getNextStackOffset(), RegSizeInBytes);
- else
- VaArgOffset = (int)CC.reservedArgArea() -
- (int)(RegSizeInBytes * (ArgRegs.size() - Idx));
+ RoundUpToAlignment(State.getNextStackOffset(), RegSizeInBytes);
+ else {
+ VaArgOffset =
+ (int)ABI.GetCalleeAllocdArgSizeInBytes(State.getCallingConv()) -
+ (int)(RegSizeInBytes * (ArgRegs.size() - Idx));
+ }
// Record the frame index of the first variable argument
// which is a value necessary to VASTART.
unsigned Reg = addLiveIn(MF, ArgRegs[I], RC);
SDValue ArgValue = DAG.getCopyFromReg(Chain, DL, Reg, RegTy);
FI = MFI->CreateFixedObject(RegSizeInBytes, VaArgOffset, true);
- SDValue PtrOff = DAG.getFrameIndex(FI, getPointerTy());
+ SDValue PtrOff = DAG.getFrameIndex(FI, getPointerTy(DAG.getDataLayout()));
SDValue Store = DAG.getStore(Chain, DL, ArgValue, PtrOff,
MachinePointerInfo(), false, false, 0);
cast<StoreSDNode>(Store.getNode())->getMemOperand()->setValue(
OutChains.push_back(Store);
}
}
+
+void MipsTargetLowering::HandleByVal(CCState *State, unsigned &Size,
+ unsigned Align) const {
+ const TargetFrameLowering *TFL = Subtarget.getFrameLowering();
+
+ assert(Size && "Byval argument's size shouldn't be 0.");
+
+ Align = std::min(Align, TFL->getStackAlignment());
+
+ unsigned FirstReg = 0;
+ unsigned NumRegs = 0;
+
+ if (State->getCallingConv() != CallingConv::Fast) {
+ unsigned RegSizeInBytes = Subtarget.getGPRSizeInBytes();
+ ArrayRef<MCPhysReg> IntArgRegs = ABI.GetByValArgRegs();
+ // FIXME: The O32 case actually describes no shadow registers.
+ const MCPhysReg *ShadowRegs =
+ ABI.IsO32() ? IntArgRegs.data() : Mips64DPRegs;
+
+ // We used to check the size as well but we can't do that anymore since
+ // CCState::HandleByVal() rounds up the size after calling this function.
+ assert(!(Align % RegSizeInBytes) &&
+ "Byval argument's alignment should be a multiple of"
+ "RegSizeInBytes.");
+
+ FirstReg = State->getFirstUnallocated(IntArgRegs);
+
+ // If Align > RegSizeInBytes, the first arg register must be even.
+ // FIXME: This condition happens to do the right thing but it's not the
+ // right way to test it. We want to check that the stack frame offset
+ // of the register is aligned.
+ if ((Align > RegSizeInBytes) && (FirstReg % 2)) {
+ State->AllocateReg(IntArgRegs[FirstReg], ShadowRegs[FirstReg]);
+ ++FirstReg;
+ }
+
+ // Mark the registers allocated.
+ Size = RoundUpToAlignment(Size, RegSizeInBytes);
+ for (unsigned I = FirstReg; Size > 0 && (I < IntArgRegs.size());
+ Size -= RegSizeInBytes, ++I, ++NumRegs)
+ State->AllocateReg(IntArgRegs[I], ShadowRegs[I]);
+ }
+
+ State->addInRegsParamInfo(FirstReg, FirstReg + NumRegs);
+}
+
+MachineBasicBlock *
+MipsTargetLowering::emitPseudoSELECT(MachineInstr *MI, MachineBasicBlock *BB,
+ bool isFPCmp, unsigned Opc) const {
+ assert(!(Subtarget.hasMips4() || Subtarget.hasMips32()) &&
+ "Subtarget already supports SELECT nodes with the use of"
+ "conditional-move instructions.");
+
+ const TargetInstrInfo *TII =
+ Subtarget.getInstrInfo();
+ DebugLoc DL = MI->getDebugLoc();
+
+ // To "insert" a SELECT instruction, we actually have to insert the
+ // diamond control-flow pattern. The incoming instruction knows the
+ // destination vreg to set, the condition code register to branch on, the
+ // true/false values to select between, and a branch opcode to use.
+ const BasicBlock *LLVM_BB = BB->getBasicBlock();
+ MachineFunction::iterator It = ++BB->getIterator();
+
+ // thisMBB:
+ // ...
+ // TrueVal = ...
+ // setcc r1, r2, r3
+ // bNE r1, r0, copy1MBB
+ // fallthrough --> copy0MBB
+ MachineBasicBlock *thisMBB = BB;
+ MachineFunction *F = BB->getParent();
+ MachineBasicBlock *copy0MBB = F->CreateMachineBasicBlock(LLVM_BB);
+ MachineBasicBlock *sinkMBB = F->CreateMachineBasicBlock(LLVM_BB);
+ F->insert(It, copy0MBB);
+ F->insert(It, sinkMBB);
+
+ // Transfer the remainder of BB and its successor edges to sinkMBB.
+ sinkMBB->splice(sinkMBB->begin(), BB,
+ std::next(MachineBasicBlock::iterator(MI)), BB->end());
+ sinkMBB->transferSuccessorsAndUpdatePHIs(BB);
+
+ // Next, add the true and fallthrough blocks as its successors.
+ BB->addSuccessor(copy0MBB);
+ BB->addSuccessor(sinkMBB);
+
+ if (isFPCmp) {
+ // bc1[tf] cc, sinkMBB
+ BuildMI(BB, DL, TII->get(Opc))
+ .addReg(MI->getOperand(1).getReg())
+ .addMBB(sinkMBB);
+ } else {
+ // bne rs, $0, sinkMBB
+ BuildMI(BB, DL, TII->get(Opc))
+ .addReg(MI->getOperand(1).getReg())
+ .addReg(Mips::ZERO)
+ .addMBB(sinkMBB);
+ }
+
+ // copy0MBB:
+ // %FalseValue = ...
+ // # fallthrough to sinkMBB
+ BB = copy0MBB;
+
+ // Update machine-CFG edges
+ BB->addSuccessor(sinkMBB);
+
+ // sinkMBB:
+ // %Result = phi [ %TrueValue, thisMBB ], [ %FalseValue, copy0MBB ]
+ // ...
+ BB = sinkMBB;
+
+ BuildMI(*BB, BB->begin(), DL,
+ TII->get(Mips::PHI), MI->getOperand(0).getReg())
+ .addReg(MI->getOperand(2).getReg()).addMBB(thisMBB)
+ .addReg(MI->getOperand(3).getReg()).addMBB(copy0MBB);
+
+ MI->eraseFromParent(); // The pseudo instruction is gone now.
+
+ return BB;
+}
+
+// FIXME? Maybe this could be a TableGen attribute on some registers and
+// this table could be generated automatically from RegInfo.
+unsigned MipsTargetLowering::getRegisterByName(const char* RegName, EVT VT,
+ SelectionDAG &DAG) const {
+ // Named registers is expected to be fairly rare. For now, just support $28
+ // since the linux kernel uses it.
+ if (Subtarget.isGP64bit()) {
+ unsigned Reg = StringSwitch<unsigned>(RegName)
+ .Case("$28", Mips::GP_64)
+ .Default(0);
+ if (Reg)
+ return Reg;
+ } else {
+ unsigned Reg = StringSwitch<unsigned>(RegName)
+ .Case("$28", Mips::GP)
+ .Default(0);
+ if (Reg)
+ return Reg;
+ }
+ report_fatal_error("Invalid register name global variable");
+}
projects / oota-llvm.git / blobdiff