using namespace llvm;
-static cl::opt<bool> NoDPLoadStore("mno-ldc1-sdc1", cl::init(false),
- cl::desc("Expand double precision loads and "
- "stores to their single precision "
- "counterparts."));
-
MipsSEInstrInfo::MipsSEInstrInfo(MipsTargetMachine &tm)
: MipsInstrInfo(tm,
tm.getRelocationModel() == Reloc::PIC_ ? Mips::B : Mips::J),
.addReg(SrcReg, RegState::Implicit | getKillRegState(KillSrc));
return;
}
+ else if (Mips::MSACtrlRegClass.contains(SrcReg))
+ Opc = Mips::CFCMSA;
}
else if (Mips::GPR32RegClass.contains(SrcReg)) { // Copy from CPU Reg.
if (Mips::CCRRegClass.contains(DestReg))
.addReg(DestReg, RegState::ImplicitDefine);
return;
}
+ else if (Mips::MSACtrlRegClass.contains(DestReg))
+ Opc = Mips::CTCMSA;
}
else if (Mips::FGR32RegClass.contains(DestReg, SrcReg))
Opc = Mips::FMOV_S;
else if (Mips::FGR64RegClass.contains(DestReg))
Opc = Mips::DMTC1;
}
+ else if (Mips::MSA128BRegClass.contains(DestReg)) { // Copy to MSA reg
+ if (Mips::MSA128BRegClass.contains(SrcReg))
+ Opc = Mips::MOVE_V;
+ }
assert(Opc && "Cannot copy registers");
Opc = Mips::SDC1;
else if (Mips::FGR64RegClass.hasSubClassEq(RC))
Opc = Mips::SDC164;
+ else if (RC->hasType(MVT::v16i8))
+ Opc = Mips::ST_B;
+ else if (RC->hasType(MVT::v8i16) || RC->hasType(MVT::v8f16))
+ Opc = Mips::ST_H;
+ else if (RC->hasType(MVT::v4i32) || RC->hasType(MVT::v4f32))
+ Opc = Mips::ST_W;
+ else if (RC->hasType(MVT::v2i64) || RC->hasType(MVT::v2f64))
+ Opc = Mips::ST_D;
assert(Opc && "Register class not handled!");
BuildMI(MBB, I, DL, get(Opc)).addReg(SrcReg, getKillRegState(isKill))
Opc = Mips::LDC1;
else if (Mips::FGR64RegClass.hasSubClassEq(RC))
Opc = Mips::LDC164;
+ else if (RC->hasType(MVT::v16i8))
+ Opc = Mips::LD_B;
+ else if (RC->hasType(MVT::v8i16) || RC->hasType(MVT::v8f16))
+ Opc = Mips::LD_H;
+ else if (RC->hasType(MVT::v4i32) || RC->hasType(MVT::v4f32))
+ Opc = Mips::LD_W;
+ else if (RC->hasType(MVT::v2i64) || RC->hasType(MVT::v2f64))
+ Opc = Mips::LD_D;
assert(Opc && "Register class not handled!");
BuildMI(MBB, I, DL, get(Opc), DestReg).addFrameIndex(FI).addImm(Offset)
case Mips::RetRA:
expandRetRA(MBB, MI, Mips::RET);
break;
+ case Mips::PseudoMFHI:
+ expandPseudoMFHiLo(MBB, MI, Mips::MFHI);
+ break;
+ case Mips::PseudoMFLO:
+ expandPseudoMFHiLo(MBB, MI, Mips::MFLO);
+ break;
+ case Mips::PseudoMFHI64:
+ expandPseudoMFHiLo(MBB, MI, Mips::MFHI64);
+ break;
+ case Mips::PseudoMFLO64:
+ expandPseudoMFHiLo(MBB, MI, Mips::MFLO64);
+ break;
+ case Mips::PseudoMTLOHI:
+ expandPseudoMTLoHi(MBB, MI, Mips::MTLO, Mips::MTHI, false);
+ break;
+ case Mips::PseudoMTLOHI64:
+ expandPseudoMTLoHi(MBB, MI, Mips::MTLO64, Mips::MTHI64, false);
+ break;
+ case Mips::PseudoMTLOHI_DSP:
+ expandPseudoMTLoHi(MBB, MI, Mips::MTLO_DSP, Mips::MTHI_DSP, true);
+ break;
case Mips::PseudoCVT_S_W:
expandCvtFPInt(MBB, MI, Mips::CVT_S_W, Mips::MTC1, false);
break;
case Mips::ExtractElementF64_64:
expandExtractElementF64(MBB, MI, true);
break;
- case Mips::PseudoLDC1:
- expandDPLoadStore(MBB, MI, Mips::LDC1, Mips::LWC1);
- break;
- case Mips::PseudoSDC1:
- expandDPLoadStore(MBB, MI, Mips::SDC1, Mips::SWC1);
- break;
case Mips::MIPSeh_return32:
case Mips::MIPSeh_return64:
expandEhReturn(MBB, MI);
return std::make_pair(DstRegSize > SrcRegSize, DstRegSize < SrcRegSize);
}
+void MipsSEInstrInfo::expandPseudoMFHiLo(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator I,
+ unsigned NewOpc) const {
+ BuildMI(MBB, I, I->getDebugLoc(), get(NewOpc), I->getOperand(0).getReg());
+}
+
+void MipsSEInstrInfo::expandPseudoMTLoHi(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator I,
+ unsigned LoOpc,
+ unsigned HiOpc,
+ bool HasExplicitDef) const {
+ // Expand
+ // lo_hi pseudomtlohi $gpr0, $gpr1
+ // to these two instructions:
+ // mtlo $gpr0
+ // mthi $gpr1
+
+ DebugLoc DL = I->getDebugLoc();
+ const MachineOperand &SrcLo = I->getOperand(1), &SrcHi = I->getOperand(2);
+ MachineInstrBuilder LoInst = BuildMI(MBB, I, DL, get(LoOpc));
+ MachineInstrBuilder HiInst = BuildMI(MBB, I, DL, get(HiOpc));
+ LoInst.addReg(SrcLo.getReg(), getKillRegState(SrcLo.isKill()));
+ HiInst.addReg(SrcHi.getReg(), getKillRegState(SrcHi.isKill()));
+
+ // Add lo/hi registers if the mtlo/hi instructions created have explicit
+ // def registers.
+ if (HasExplicitDef) {
+ unsigned DstReg = I->getOperand(0).getReg();
+ unsigned DstLo = getRegisterInfo().getSubReg(DstReg, Mips::sub_lo);
+ unsigned DstHi = getRegisterInfo().getSubReg(DstReg, Mips::sub_hi);
+ LoInst.addReg(DstLo, RegState::Define);
+ HiInst.addReg(DstHi, RegState::Define);
+ }
+}
+
void MipsSEInstrInfo::expandCvtFPInt(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I,
unsigned CvtOpc, unsigned MovOpc,
DebugLoc dl = I->getDebugLoc();
const TargetRegisterInfo &TRI = getRegisterInfo();
- // mtc1 Lo, $fp
- // mtc1 Hi, $fp + 1
+ // For FP32 mode:
+ // mtc1 Lo, $fp
+ // mtc1 Hi, $fp + 1
+ // For FP64 mode:
+ // mtc1 Lo, $fp
+ // mthc1 Hi, $fp
+
BuildMI(MBB, I, dl, Mtc1Tdd, TRI.getSubReg(DstReg, Mips::sub_lo))
.addReg(LoReg);
.addReg(HiReg);
}
-/// Add 4 to the displacement of operand MO.
-static void fixDisp(MachineOperand &MO) {
- switch (MO.getType()) {
- default:
- llvm_unreachable("Unhandled operand type.");
- case MachineOperand::MO_Immediate:
- MO.setImm(MO.getImm() + 4);
- break;
- case MachineOperand::MO_GlobalAddress:
- case MachineOperand::MO_ConstantPoolIndex:
- case MachineOperand::MO_BlockAddress:
- case MachineOperand::MO_TargetIndex:
- case MachineOperand::MO_ExternalSymbol:
- MO.setOffset(MO.getOffset() + 4);
- break;
- }
-}
-
-void MipsSEInstrInfo::expandDPLoadStore(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator I,
- unsigned OpcD, unsigned OpcS) const {
- // If NoDPLoadStore is false, just change the opcode.
- if (!NoDPLoadStore) {
- genInstrWithNewOpc(OpcD, I);
- return;
- }
-
- // Expand a double precision FP load or store to two single precision
- // instructions.
-
- const TargetRegisterInfo &TRI = getRegisterInfo();
- const MachineOperand &ValReg = I->getOperand(0);
- unsigned LoReg = TRI.getSubReg(ValReg.getReg(), Mips::sub_lo);
- unsigned HiReg = TRI.getSubReg(ValReg.getReg(), Mips::sub_hi);
-
- if (!TM.getSubtarget<MipsSubtarget>().isLittle())
- std::swap(LoReg, HiReg);
-
- // Create an instruction which loads from or stores to the lower memory
- // address.
- MachineInstrBuilder MIB = genInstrWithNewOpc(OpcS, I);
- MIB->getOperand(0).setReg(LoReg);
-
- // Create an instruction which loads from or stores to the higher memory
- // address.
- MIB = genInstrWithNewOpc(OpcS, I);
- MIB->getOperand(0).setReg(HiReg);
- fixDisp(MIB->getOperand(2));
-}
-
void MipsSEInstrInfo::expandEhReturn(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const {
// This pseudo instruction is generated as part of the lowering of
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