X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FHexagon%2FHexagonExpandPredSpillCode.cpp;h=6e2dbc06b1245398b500ed4fe33bd343ae3c970f;hb=16d4cc83c30485f28bb37715930c4302749d23b1;hp=a96da9a3ce2aa51e02eb9dde336aeba638ee5c9e;hpb=87eb92d913c2e3cdeb08b0a22250cd6c3214a3ff;p=oota-llvm.git diff --git a/lib/Target/Hexagon/HexagonExpandPredSpillCode.cpp b/lib/Target/Hexagon/HexagonExpandPredSpillCode.cpp index a96da9a3ce2..6e2dbc06b12 100644 --- a/lib/Target/Hexagon/HexagonExpandPredSpillCode.cpp +++ b/lib/Target/Hexagon/HexagonExpandPredSpillCode.cpp @@ -17,9 +17,9 @@ // //===----------------------------------------------------------------------===// -#include "HexagonTargetMachine.h" -#include "HexagonSubtarget.h" +#include "Hexagon.h" #include "HexagonMachineFunctionInfo.h" +#include "HexagonSubtarget.h" #include "llvm/ADT/Statistic.h" #include "llvm/CodeGen/LatencyPriorityQueue.h" #include "llvm/CodeGen/MachineDominators.h" @@ -30,31 +30,36 @@ #include "llvm/CodeGen/Passes.h" #include "llvm/CodeGen/ScheduleHazardRecognizer.h" #include "llvm/CodeGen/SchedulerRegistry.h" -#include "llvm/Target/TargetMachine.h" -#include "llvm/Target/TargetInstrInfo.h" -#include "llvm/Target/TargetRegisterInfo.h" #include "llvm/Support/Compiler.h" #include "llvm/Support/Debug.h" #include "llvm/Support/MathExtras.h" +#include "llvm/Target/TargetInstrInfo.h" +#include "llvm/Target/TargetMachine.h" +#include "llvm/Target/TargetRegisterInfo.h" using namespace llvm; +namespace llvm { + FunctionPass *createHexagonExpandPredSpillCode(); + void initializeHexagonExpandPredSpillCodePass(PassRegistry&); +} + + namespace { class HexagonExpandPredSpillCode : public MachineFunctionPass { - HexagonTargetMachine& QTM; - const HexagonSubtarget &QST; - public: static char ID; - HexagonExpandPredSpillCode(HexagonTargetMachine& TM) : - MachineFunctionPass(ID), QTM(TM), QST(*TM.getSubtargetImpl()) {} + HexagonExpandPredSpillCode() : MachineFunctionPass(ID) { + PassRegistry &Registry = *PassRegistry::getPassRegistry(); + initializeHexagonExpandPredSpillCodePass(Registry); + } - const char *getPassName() const { + const char *getPassName() const override { return "Hexagon Expand Predicate Spill Code"; } - bool runOnMachineFunction(MachineFunction &Fn); + bool runOnMachineFunction(MachineFunction &Fn) override; }; @@ -63,55 +68,217 @@ char HexagonExpandPredSpillCode::ID = 0; bool HexagonExpandPredSpillCode::runOnMachineFunction(MachineFunction &Fn) { - const HexagonInstrInfo *TII = QTM.getInstrInfo(); + const HexagonSubtarget &QST = Fn.getSubtarget(); + const HexagonInstrInfo *TII = QST.getInstrInfo(); // Loop over all of the basic blocks. for (MachineFunction::iterator MBBb = Fn.begin(), MBBe = Fn.end(); MBBb != MBBe; ++MBBb) { - MachineBasicBlock* MBB = MBBb; + MachineBasicBlock *MBB = &*MBBb; // Traverse the basic block. for (MachineBasicBlock::iterator MII = MBB->begin(); MII != MBB->end(); ++MII) { MachineInstr *MI = MII; int Opc = MI->getOpcode(); - if (Opc == Hexagon::STriw_pred) { + if (Opc == Hexagon::S2_storerb_pci_pseudo || + Opc == Hexagon::S2_storerh_pci_pseudo || + Opc == Hexagon::S2_storeri_pci_pseudo || + Opc == Hexagon::S2_storerd_pci_pseudo || + Opc == Hexagon::S2_storerf_pci_pseudo) { + unsigned Opcode; + if (Opc == Hexagon::S2_storerd_pci_pseudo) + Opcode = Hexagon::S2_storerd_pci; + else if (Opc == Hexagon::S2_storeri_pci_pseudo) + Opcode = Hexagon::S2_storeri_pci; + else if (Opc == Hexagon::S2_storerh_pci_pseudo) + Opcode = Hexagon::S2_storerh_pci; + else if (Opc == Hexagon::S2_storerf_pci_pseudo) + Opcode = Hexagon::S2_storerf_pci; + else if (Opc == Hexagon::S2_storerb_pci_pseudo) + Opcode = Hexagon::S2_storerb_pci; + else + llvm_unreachable("wrong Opc"); + MachineOperand &Op0 = MI->getOperand(0); + MachineOperand &Op1 = MI->getOperand(1); + MachineOperand &Op2 = MI->getOperand(2); + MachineOperand &Op3 = MI->getOperand(3); // Modifier value. + MachineOperand &Op4 = MI->getOperand(4); + // Emit a "C6 = Rn, C6 is the control register for M0". + BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::A2_tfrrcr), + Hexagon::C6)->addOperand(Op3); + // Replace the pseude circ_ldd by the real circ_ldd. + MachineInstr *NewMI = BuildMI(*MBB, MII, MI->getDebugLoc(), + TII->get(Opcode)); + NewMI->addOperand(Op0); + NewMI->addOperand(Op1); + NewMI->addOperand(Op4); + NewMI->addOperand(MachineOperand::CreateReg(Hexagon::M0, + false, /*isDef*/ + false, /*isImpl*/ + true /*isKill*/)); + NewMI->addOperand(Op2); + MII = MBB->erase(MI); + --MII; + } else if (Opc == Hexagon::L2_loadrd_pci_pseudo || + Opc == Hexagon::L2_loadri_pci_pseudo || + Opc == Hexagon::L2_loadrh_pci_pseudo || + Opc == Hexagon::L2_loadruh_pci_pseudo|| + Opc == Hexagon::L2_loadrb_pci_pseudo || + Opc == Hexagon::L2_loadrub_pci_pseudo) { + unsigned Opcode; + if (Opc == Hexagon::L2_loadrd_pci_pseudo) + Opcode = Hexagon::L2_loadrd_pci; + else if (Opc == Hexagon::L2_loadri_pci_pseudo) + Opcode = Hexagon::L2_loadri_pci; + else if (Opc == Hexagon::L2_loadrh_pci_pseudo) + Opcode = Hexagon::L2_loadrh_pci; + else if (Opc == Hexagon::L2_loadruh_pci_pseudo) + Opcode = Hexagon::L2_loadruh_pci; + else if (Opc == Hexagon::L2_loadrb_pci_pseudo) + Opcode = Hexagon::L2_loadrb_pci; + else if (Opc == Hexagon::L2_loadrub_pci_pseudo) + Opcode = Hexagon::L2_loadrub_pci; + else + llvm_unreachable("wrong Opc"); + + MachineOperand &Op0 = MI->getOperand(0); + MachineOperand &Op1 = MI->getOperand(1); + MachineOperand &Op2 = MI->getOperand(2); + MachineOperand &Op4 = MI->getOperand(4); // Modifier value. + MachineOperand &Op5 = MI->getOperand(5); + // Emit a "C6 = Rn, C6 is the control register for M0". + BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::A2_tfrrcr), + Hexagon::C6)->addOperand(Op4); + // Replace the pseude circ_ldd by the real circ_ldd. + MachineInstr *NewMI = BuildMI(*MBB, MII, MI->getDebugLoc(), + TII->get(Opcode)); + NewMI->addOperand(Op1); + NewMI->addOperand(Op0); + NewMI->addOperand(Op2); + NewMI->addOperand(Op5); + NewMI->addOperand(MachineOperand::CreateReg(Hexagon::M0, + false, /*isDef*/ + false, /*isImpl*/ + true /*isKill*/)); + MII = MBB->erase(MI); + --MII; + } else if (Opc == Hexagon::L2_loadrd_pbr_pseudo || + Opc == Hexagon::L2_loadri_pbr_pseudo || + Opc == Hexagon::L2_loadrh_pbr_pseudo || + Opc == Hexagon::L2_loadruh_pbr_pseudo|| + Opc == Hexagon::L2_loadrb_pbr_pseudo || + Opc == Hexagon::L2_loadrub_pbr_pseudo) { + unsigned Opcode; + if (Opc == Hexagon::L2_loadrd_pbr_pseudo) + Opcode = Hexagon::L2_loadrd_pbr; + else if (Opc == Hexagon::L2_loadri_pbr_pseudo) + Opcode = Hexagon::L2_loadri_pbr; + else if (Opc == Hexagon::L2_loadrh_pbr_pseudo) + Opcode = Hexagon::L2_loadrh_pbr; + else if (Opc == Hexagon::L2_loadruh_pbr_pseudo) + Opcode = Hexagon::L2_loadruh_pbr; + else if (Opc == Hexagon::L2_loadrb_pbr_pseudo) + Opcode = Hexagon::L2_loadrb_pbr; + else if (Opc == Hexagon::L2_loadrub_pbr_pseudo) + Opcode = Hexagon::L2_loadrub_pbr; + else + llvm_unreachable("wrong Opc"); + MachineOperand &Op0 = MI->getOperand(0); + MachineOperand &Op1 = MI->getOperand(1); + MachineOperand &Op2 = MI->getOperand(2); + MachineOperand &Op4 = MI->getOperand(4); // Modifier value. + // Emit a "C6 = Rn, C6 is the control register for M0". + BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::A2_tfrrcr), + Hexagon::C6)->addOperand(Op4); + // Replace the pseudo brev_ldd by the real brev_ldd. + MachineInstr *NewMI = BuildMI(*MBB, MII, MI->getDebugLoc(), + TII->get(Opcode)); + NewMI->addOperand(Op1); + NewMI->addOperand(Op0); + NewMI->addOperand(Op2); + NewMI->addOperand(MachineOperand::CreateReg(Hexagon::M0, + false, /*isDef*/ + false, /*isImpl*/ + true /*isKill*/)); + MII = MBB->erase(MI); + --MII; + } else if (Opc == Hexagon::S2_storerd_pbr_pseudo || + Opc == Hexagon::S2_storeri_pbr_pseudo || + Opc == Hexagon::S2_storerh_pbr_pseudo || + Opc == Hexagon::S2_storerb_pbr_pseudo || + Opc == Hexagon::S2_storerf_pbr_pseudo) { + unsigned Opcode; + if (Opc == Hexagon::S2_storerd_pbr_pseudo) + Opcode = Hexagon::S2_storerd_pbr; + else if (Opc == Hexagon::S2_storeri_pbr_pseudo) + Opcode = Hexagon::S2_storeri_pbr; + else if (Opc == Hexagon::S2_storerh_pbr_pseudo) + Opcode = Hexagon::S2_storerh_pbr; + else if (Opc == Hexagon::S2_storerf_pbr_pseudo) + Opcode = Hexagon::S2_storerf_pbr; + else if (Opc == Hexagon::S2_storerb_pbr_pseudo) + Opcode = Hexagon::S2_storerb_pbr; + else + llvm_unreachable("wrong Opc"); + MachineOperand &Op0 = MI->getOperand(0); + MachineOperand &Op1 = MI->getOperand(1); + MachineOperand &Op2 = MI->getOperand(2); + MachineOperand &Op3 = MI->getOperand(3); // Modifier value. + // Emit a "C6 = Rn, C6 is the control register for M0". + BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::A2_tfrrcr), + Hexagon::C6)->addOperand(Op3); + // Replace the pseudo brev_ldd by the real brev_ldd. + MachineInstr *NewMI = BuildMI(*MBB, MII, MI->getDebugLoc(), + TII->get(Opcode)); + NewMI->addOperand(Op0); + NewMI->addOperand(Op1); + NewMI->addOperand(MachineOperand::CreateReg(Hexagon::M0, + false, /*isDef*/ + false, /*isImpl*/ + true /*isKill*/)); + NewMI->addOperand(Op2); + MII = MBB->erase(MI); + --MII; + } else if (Opc == Hexagon::STriw_pred) { // STriw_pred [R30], ofst, SrcReg; unsigned FP = MI->getOperand(0).getReg(); - assert(FP == QTM.getRegisterInfo()->getFrameRegister() && + assert(FP == QST.getRegisterInfo()->getFrameRegister() && "Not a Frame Pointer, Nor a Spill Slot"); assert(MI->getOperand(1).isImm() && "Not an offset"); int Offset = MI->getOperand(1).getImm(); int SrcReg = MI->getOperand(2).getReg(); assert(Hexagon::PredRegsRegClass.contains(SrcReg) && "Not a predicate register"); - if (!TII->isValidOffset(Hexagon::STriw_indexed, Offset)) { - if (!TII->isValidOffset(Hexagon::ADD_ri, Offset)) { + if (!TII->isValidOffset(Hexagon::S2_storeri_io, Offset)) { + if (!TII->isValidOffset(Hexagon::A2_addi, Offset)) { BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::CONST32_Int_Real), HEXAGON_RESERVED_REG_1).addImm(Offset); - BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::ADD_rr), + BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::A2_add), HEXAGON_RESERVED_REG_1) .addReg(FP).addReg(HEXAGON_RESERVED_REG_1); - BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::TFR_RsPd), + BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::C2_tfrpr), HEXAGON_RESERVED_REG_2).addReg(SrcReg); BuildMI(*MBB, MII, MI->getDebugLoc(), - TII->get(Hexagon::STriw_indexed)) + TII->get(Hexagon::S2_storeri_io)) .addReg(HEXAGON_RESERVED_REG_1) .addImm(0).addReg(HEXAGON_RESERVED_REG_2); } else { - BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::ADD_ri), + BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::A2_addi), HEXAGON_RESERVED_REG_1).addReg(FP).addImm(Offset); - BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::TFR_RsPd), + BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::C2_tfrpr), HEXAGON_RESERVED_REG_2).addReg(SrcReg); - BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::STriw_indexed)) + BuildMI(*MBB, MII, MI->getDebugLoc(), + TII->get(Hexagon::S2_storeri_io)) .addReg(HEXAGON_RESERVED_REG_1) .addImm(0) .addReg(HEXAGON_RESERVED_REG_2); } } else { - BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::TFR_RsPd), + BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::C2_tfrpr), HEXAGON_RESERVED_REG_2).addReg(SrcReg); - BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::STriw_indexed)). + BuildMI(*MBB, MII, MI->getDebugLoc(), + TII->get(Hexagon::S2_storeri_io)). addReg(FP).addImm(Offset).addReg(HEXAGON_RESERVED_REG_2); } MII = MBB->erase(MI); @@ -122,39 +289,39 @@ bool HexagonExpandPredSpillCode::runOnMachineFunction(MachineFunction &Fn) { assert(Hexagon::PredRegsRegClass.contains(DstReg) && "Not a predicate register"); unsigned FP = MI->getOperand(1).getReg(); - assert(FP == QTM.getRegisterInfo()->getFrameRegister() && + assert(FP == QST.getRegisterInfo()->getFrameRegister() && "Not a Frame Pointer, Nor a Spill Slot"); assert(MI->getOperand(2).isImm() && "Not an offset"); int Offset = MI->getOperand(2).getImm(); - if (!TII->isValidOffset(Hexagon::LDriw, Offset)) { - if (!TII->isValidOffset(Hexagon::ADD_ri, Offset)) { + if (!TII->isValidOffset(Hexagon::L2_loadri_io, Offset)) { + if (!TII->isValidOffset(Hexagon::A2_addi, Offset)) { BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::CONST32_Int_Real), HEXAGON_RESERVED_REG_1).addImm(Offset); - BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::ADD_rr), + BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::A2_add), HEXAGON_RESERVED_REG_1) .addReg(FP) .addReg(HEXAGON_RESERVED_REG_1); - BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::LDriw), + BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::L2_loadri_io), HEXAGON_RESERVED_REG_2) .addReg(HEXAGON_RESERVED_REG_1) .addImm(0); - BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::TFR_PdRs), + BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::C2_tfrrp), DstReg).addReg(HEXAGON_RESERVED_REG_2); } else { - BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::ADD_ri), + BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::A2_addi), HEXAGON_RESERVED_REG_1).addReg(FP).addImm(Offset); - BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::LDriw), + BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::L2_loadri_io), HEXAGON_RESERVED_REG_2) .addReg(HEXAGON_RESERVED_REG_1) .addImm(0); - BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::TFR_PdRs), + BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::C2_tfrrp), DstReg).addReg(HEXAGON_RESERVED_REG_2); } } else { - BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::LDriw), + BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::L2_loadri_io), HEXAGON_RESERVED_REG_2).addReg(FP).addImm(Offset); - BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::TFR_PdRs), + BuildMI(*MBB, MII, MI->getDebugLoc(), TII->get(Hexagon::C2_tfrrp), DstReg).addReg(HEXAGON_RESERVED_REG_2); } MII = MBB->erase(MI); @@ -172,6 +339,19 @@ bool HexagonExpandPredSpillCode::runOnMachineFunction(MachineFunction &Fn) { // Public Constructor Functions //===----------------------------------------------------------------------===// -FunctionPass *llvm::createHexagonExpandPredSpillCode(HexagonTargetMachine &TM) { - return new HexagonExpandPredSpillCode(TM); +static void initializePassOnce(PassRegistry &Registry) { + const char *Name = "Hexagon Expand Predicate Spill Code"; + PassInfo *PI = new PassInfo(Name, "hexagon-spill-pred", + &HexagonExpandPredSpillCode::ID, + nullptr, false, false); + Registry.registerPass(*PI, true); +} + +void llvm::initializeHexagonExpandPredSpillCodePass(PassRegistry &Registry) { + CALL_ONCE_INITIALIZATION(initializePassOnce) +} + +FunctionPass* +llvm::createHexagonExpandPredSpillCode() { + return new HexagonExpandPredSpillCode(); }