| //===-- ARMExpandPseudoInsts.cpp - Expand pseudo instructions -------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file contains a pass that expands pseudo instructions into target |
| // instructions to allow proper scheduling, if-conversion, and other late |
| // optimizations. This pass should be run after register allocation but before |
| // the post-regalloc scheduling pass. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #define DEBUG_TYPE "arm-pseudo" |
| #include "ARM.h" |
| #include "ARMBaseInstrInfo.h" |
| #include "ARMBaseRegisterInfo.h" |
| #include "ARMMachineFunctionInfo.h" |
| #include "MCTargetDesc/ARMAddressingModes.h" |
| #include "llvm/CodeGen/MachineFrameInfo.h" |
| #include "llvm/CodeGen/MachineFunctionPass.h" |
| #include "llvm/CodeGen/MachineInstrBuilder.h" |
| #include "llvm/Support/CommandLine.h" |
| #include "llvm/Support/raw_ostream.h" // FIXME: for debug only. remove! |
| #include "llvm/Target/TargetFrameLowering.h" |
| #include "llvm/Target/TargetRegisterInfo.h" |
| using namespace llvm; |
| |
| static cl::opt<bool> |
| VerifyARMPseudo("verify-arm-pseudo-expand", cl::Hidden, |
| cl::desc("Verify machine code after expanding ARM pseudos")); |
| |
| namespace { |
| class ARMExpandPseudo : public MachineFunctionPass { |
| public: |
| static char ID; |
| ARMExpandPseudo() : MachineFunctionPass(ID) {} |
| |
| const ARMBaseInstrInfo *TII; |
| const TargetRegisterInfo *TRI; |
| const ARMSubtarget *STI; |
| ARMFunctionInfo *AFI; |
| |
| virtual bool runOnMachineFunction(MachineFunction &Fn); |
| |
| virtual const char *getPassName() const { |
| return "ARM pseudo instruction expansion pass"; |
| } |
| |
| private: |
| void TransferImpOps(MachineInstr &OldMI, |
| MachineInstrBuilder &UseMI, MachineInstrBuilder &DefMI); |
| bool ExpandMI(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator MBBI); |
| bool ExpandMBB(MachineBasicBlock &MBB); |
| void ExpandVLD(MachineBasicBlock::iterator &MBBI); |
| void ExpandVST(MachineBasicBlock::iterator &MBBI); |
| void ExpandLaneOp(MachineBasicBlock::iterator &MBBI); |
| void ExpandVTBL(MachineBasicBlock::iterator &MBBI, |
| unsigned Opc, bool IsExt); |
| void ExpandMOV32BitImm(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator &MBBI); |
| }; |
| char ARMExpandPseudo::ID = 0; |
| } |
| |
| /// TransferImpOps - Transfer implicit operands on the pseudo instruction to |
| /// the instructions created from the expansion. |
| void ARMExpandPseudo::TransferImpOps(MachineInstr &OldMI, |
| MachineInstrBuilder &UseMI, |
| MachineInstrBuilder &DefMI) { |
| const MCInstrDesc &Desc = OldMI.getDesc(); |
| for (unsigned i = Desc.getNumOperands(), e = OldMI.getNumOperands(); |
| i != e; ++i) { |
| const MachineOperand &MO = OldMI.getOperand(i); |
| assert(MO.isReg() && MO.getReg()); |
| if (MO.isUse()) |
| UseMI.addOperand(MO); |
| else |
| DefMI.addOperand(MO); |
| } |
| } |
| |
| namespace { |
| // Constants for register spacing in NEON load/store instructions. |
| // For quad-register load-lane and store-lane pseudo instructors, the |
| // spacing is initially assumed to be EvenDblSpc, and that is changed to |
| // OddDblSpc depending on the lane number operand. |
| enum NEONRegSpacing { |
| SingleSpc, |
| EvenDblSpc, |
| OddDblSpc |
| }; |
| |
| // Entries for NEON load/store information table. The table is sorted by |
| // PseudoOpc for fast binary-search lookups. |
| struct NEONLdStTableEntry { |
| uint16_t PseudoOpc; |
| uint16_t RealOpc; |
| bool IsLoad; |
| bool isUpdating; |
| bool hasWritebackOperand; |
| uint8_t RegSpacing; // One of type NEONRegSpacing |
| uint8_t NumRegs; // D registers loaded or stored |
| uint8_t RegElts; // elements per D register; used for lane ops |
| // FIXME: Temporary flag to denote whether the real instruction takes |
| // a single register (like the encoding) or all of the registers in |
| // the list (like the asm syntax and the isel DAG). When all definitions |
| // are converted to take only the single encoded register, this will |
| // go away. |
| bool copyAllListRegs; |
| |
| // Comparison methods for binary search of the table. |
| bool operator<(const NEONLdStTableEntry &TE) const { |
| return PseudoOpc < TE.PseudoOpc; |
| } |
| friend bool operator<(const NEONLdStTableEntry &TE, unsigned PseudoOpc) { |
| return TE.PseudoOpc < PseudoOpc; |
| } |
| friend bool LLVM_ATTRIBUTE_UNUSED operator<(unsigned PseudoOpc, |
| const NEONLdStTableEntry &TE) { |
| return PseudoOpc < TE.PseudoOpc; |
| } |
| }; |
| } |
| |
| static const NEONLdStTableEntry NEONLdStTable[] = { |
| { ARM::VLD1LNq16Pseudo, ARM::VLD1LNd16, true, false, false, EvenDblSpc, 1, 4 ,true}, |
| { ARM::VLD1LNq16Pseudo_UPD, ARM::VLD1LNd16_UPD, true, true, true, EvenDblSpc, 1, 4 ,true}, |
| { ARM::VLD1LNq32Pseudo, ARM::VLD1LNd32, true, false, false, EvenDblSpc, 1, 2 ,true}, |
| { ARM::VLD1LNq32Pseudo_UPD, ARM::VLD1LNd32_UPD, true, true, true, EvenDblSpc, 1, 2 ,true}, |
| { ARM::VLD1LNq8Pseudo, ARM::VLD1LNd8, true, false, false, EvenDblSpc, 1, 8 ,true}, |
| { ARM::VLD1LNq8Pseudo_UPD, ARM::VLD1LNd8_UPD, true, true, true, EvenDblSpc, 1, 8 ,true}, |
| |
| { ARM::VLD1d64QPseudo, ARM::VLD1d64Q, true, false, false, SingleSpc, 4, 1 ,false}, |
| { ARM::VLD1d64TPseudo, ARM::VLD1d64T, true, false, false, SingleSpc, 3, 1 ,false}, |
| |
| { ARM::VLD2LNd16Pseudo, ARM::VLD2LNd16, true, false, false, SingleSpc, 2, 4 ,true}, |
| { ARM::VLD2LNd16Pseudo_UPD, ARM::VLD2LNd16_UPD, true, true, true, SingleSpc, 2, 4 ,true}, |
| { ARM::VLD2LNd32Pseudo, ARM::VLD2LNd32, true, false, false, SingleSpc, 2, 2 ,true}, |
| { ARM::VLD2LNd32Pseudo_UPD, ARM::VLD2LNd32_UPD, true, true, true, SingleSpc, 2, 2 ,true}, |
| { ARM::VLD2LNd8Pseudo, ARM::VLD2LNd8, true, false, false, SingleSpc, 2, 8 ,true}, |
| { ARM::VLD2LNd8Pseudo_UPD, ARM::VLD2LNd8_UPD, true, true, true, SingleSpc, 2, 8 ,true}, |
| { ARM::VLD2LNq16Pseudo, ARM::VLD2LNq16, true, false, false, EvenDblSpc, 2, 4 ,true}, |
| { ARM::VLD2LNq16Pseudo_UPD, ARM::VLD2LNq16_UPD, true, true, true, EvenDblSpc, 2, 4 ,true}, |
| { ARM::VLD2LNq32Pseudo, ARM::VLD2LNq32, true, false, false, EvenDblSpc, 2, 2 ,true}, |
| { ARM::VLD2LNq32Pseudo_UPD, ARM::VLD2LNq32_UPD, true, true, true, EvenDblSpc, 2, 2 ,true}, |
| |
| { ARM::VLD2q16Pseudo, ARM::VLD2q16, true, false, false, SingleSpc, 4, 4 ,false}, |
| { ARM::VLD2q16PseudoWB_fixed, ARM::VLD2q16wb_fixed, true, true, false, SingleSpc, 4, 4 ,false}, |
| { ARM::VLD2q16PseudoWB_register, ARM::VLD2q16wb_register, true, true, true, SingleSpc, 4, 4 ,false}, |
| { ARM::VLD2q32Pseudo, ARM::VLD2q32, true, false, false, SingleSpc, 4, 2 ,false}, |
| { ARM::VLD2q32PseudoWB_fixed, ARM::VLD2q32wb_fixed, true, true, false, SingleSpc, 4, 2 ,false}, |
| { ARM::VLD2q32PseudoWB_register, ARM::VLD2q32wb_register, true, true, true, SingleSpc, 4, 2 ,false}, |
| { ARM::VLD2q8Pseudo, ARM::VLD2q8, true, false, false, SingleSpc, 4, 8 ,false}, |
| { ARM::VLD2q8PseudoWB_fixed, ARM::VLD2q8wb_fixed, true, true, false, SingleSpc, 4, 8 ,false}, |
| { ARM::VLD2q8PseudoWB_register, ARM::VLD2q8wb_register, true, true, true, SingleSpc, 4, 8 ,false}, |
| |
| { ARM::VLD3DUPd16Pseudo, ARM::VLD3DUPd16, true, false, false, SingleSpc, 3, 4,true}, |
| { ARM::VLD3DUPd16Pseudo_UPD, ARM::VLD3DUPd16_UPD, true, true, true, SingleSpc, 3, 4,true}, |
| { ARM::VLD3DUPd32Pseudo, ARM::VLD3DUPd32, true, false, false, SingleSpc, 3, 2,true}, |
| { ARM::VLD3DUPd32Pseudo_UPD, ARM::VLD3DUPd32_UPD, true, true, true, SingleSpc, 3, 2,true}, |
| { ARM::VLD3DUPd8Pseudo, ARM::VLD3DUPd8, true, false, false, SingleSpc, 3, 8,true}, |
| { ARM::VLD3DUPd8Pseudo_UPD, ARM::VLD3DUPd8_UPD, true, true, true, SingleSpc, 3, 8,true}, |
| |
| { ARM::VLD3LNd16Pseudo, ARM::VLD3LNd16, true, false, false, SingleSpc, 3, 4 ,true}, |
| { ARM::VLD3LNd16Pseudo_UPD, ARM::VLD3LNd16_UPD, true, true, true, SingleSpc, 3, 4 ,true}, |
| { ARM::VLD3LNd32Pseudo, ARM::VLD3LNd32, true, false, false, SingleSpc, 3, 2 ,true}, |
| { ARM::VLD3LNd32Pseudo_UPD, ARM::VLD3LNd32_UPD, true, true, true, SingleSpc, 3, 2 ,true}, |
| { ARM::VLD3LNd8Pseudo, ARM::VLD3LNd8, true, false, false, SingleSpc, 3, 8 ,true}, |
| { ARM::VLD3LNd8Pseudo_UPD, ARM::VLD3LNd8_UPD, true, true, true, SingleSpc, 3, 8 ,true}, |
| { ARM::VLD3LNq16Pseudo, ARM::VLD3LNq16, true, false, false, EvenDblSpc, 3, 4 ,true}, |
| { ARM::VLD3LNq16Pseudo_UPD, ARM::VLD3LNq16_UPD, true, true, true, EvenDblSpc, 3, 4 ,true}, |
| { ARM::VLD3LNq32Pseudo, ARM::VLD3LNq32, true, false, false, EvenDblSpc, 3, 2 ,true}, |
| { ARM::VLD3LNq32Pseudo_UPD, ARM::VLD3LNq32_UPD, true, true, true, EvenDblSpc, 3, 2 ,true}, |
| |
| { ARM::VLD3d16Pseudo, ARM::VLD3d16, true, false, false, SingleSpc, 3, 4 ,true}, |
| { ARM::VLD3d16Pseudo_UPD, ARM::VLD3d16_UPD, true, true, true, SingleSpc, 3, 4 ,true}, |
| { ARM::VLD3d32Pseudo, ARM::VLD3d32, true, false, false, SingleSpc, 3, 2 ,true}, |
| { ARM::VLD3d32Pseudo_UPD, ARM::VLD3d32_UPD, true, true, true, SingleSpc, 3, 2 ,true}, |
| { ARM::VLD3d8Pseudo, ARM::VLD3d8, true, false, false, SingleSpc, 3, 8 ,true}, |
| { ARM::VLD3d8Pseudo_UPD, ARM::VLD3d8_UPD, true, true, true, SingleSpc, 3, 8 ,true}, |
| |
| { ARM::VLD3q16Pseudo_UPD, ARM::VLD3q16_UPD, true, true, true, EvenDblSpc, 3, 4 ,true}, |
| { ARM::VLD3q16oddPseudo, ARM::VLD3q16, true, false, false, OddDblSpc, 3, 4 ,true}, |
| { ARM::VLD3q16oddPseudo_UPD, ARM::VLD3q16_UPD, true, true, true, OddDblSpc, 3, 4 ,true}, |
| { ARM::VLD3q32Pseudo_UPD, ARM::VLD3q32_UPD, true, true, true, EvenDblSpc, 3, 2 ,true}, |
| { ARM::VLD3q32oddPseudo, ARM::VLD3q32, true, false, false, OddDblSpc, 3, 2 ,true}, |
| { ARM::VLD3q32oddPseudo_UPD, ARM::VLD3q32_UPD, true, true, true, OddDblSpc, 3, 2 ,true}, |
| { ARM::VLD3q8Pseudo_UPD, ARM::VLD3q8_UPD, true, true, true, EvenDblSpc, 3, 8 ,true}, |
| { ARM::VLD3q8oddPseudo, ARM::VLD3q8, true, false, false, OddDblSpc, 3, 8 ,true}, |
| { ARM::VLD3q8oddPseudo_UPD, ARM::VLD3q8_UPD, true, true, true, OddDblSpc, 3, 8 ,true}, |
| |
| { ARM::VLD4DUPd16Pseudo, ARM::VLD4DUPd16, true, false, false, SingleSpc, 4, 4,true}, |
| { ARM::VLD4DUPd16Pseudo_UPD, ARM::VLD4DUPd16_UPD, true, true, true, SingleSpc, 4, 4,true}, |
| { ARM::VLD4DUPd32Pseudo, ARM::VLD4DUPd32, true, false, false, SingleSpc, 4, 2,true}, |
| { ARM::VLD4DUPd32Pseudo_UPD, ARM::VLD4DUPd32_UPD, true, true, true, SingleSpc, 4, 2,true}, |
| { ARM::VLD4DUPd8Pseudo, ARM::VLD4DUPd8, true, false, false, SingleSpc, 4, 8,true}, |
| { ARM::VLD4DUPd8Pseudo_UPD, ARM::VLD4DUPd8_UPD, true, true, true, SingleSpc, 4, 8,true}, |
| |
| { ARM::VLD4LNd16Pseudo, ARM::VLD4LNd16, true, false, false, SingleSpc, 4, 4 ,true}, |
| { ARM::VLD4LNd16Pseudo_UPD, ARM::VLD4LNd16_UPD, true, true, true, SingleSpc, 4, 4 ,true}, |
| { ARM::VLD4LNd32Pseudo, ARM::VLD4LNd32, true, false, false, SingleSpc, 4, 2 ,true}, |
| { ARM::VLD4LNd32Pseudo_UPD, ARM::VLD4LNd32_UPD, true, true, true, SingleSpc, 4, 2 ,true}, |
| { ARM::VLD4LNd8Pseudo, ARM::VLD4LNd8, true, false, false, SingleSpc, 4, 8 ,true}, |
| { ARM::VLD4LNd8Pseudo_UPD, ARM::VLD4LNd8_UPD, true, true, true, SingleSpc, 4, 8 ,true}, |
| { ARM::VLD4LNq16Pseudo, ARM::VLD4LNq16, true, false, false, EvenDblSpc, 4, 4 ,true}, |
| { ARM::VLD4LNq16Pseudo_UPD, ARM::VLD4LNq16_UPD, true, true, true, EvenDblSpc, 4, 4 ,true}, |
| { ARM::VLD4LNq32Pseudo, ARM::VLD4LNq32, true, false, false, EvenDblSpc, 4, 2 ,true}, |
| { ARM::VLD4LNq32Pseudo_UPD, ARM::VLD4LNq32_UPD, true, true, true, EvenDblSpc, 4, 2 ,true}, |
| |
| { ARM::VLD4d16Pseudo, ARM::VLD4d16, true, false, false, SingleSpc, 4, 4 ,true}, |
| { ARM::VLD4d16Pseudo_UPD, ARM::VLD4d16_UPD, true, true, true, SingleSpc, 4, 4 ,true}, |
| { ARM::VLD4d32Pseudo, ARM::VLD4d32, true, false, false, SingleSpc, 4, 2 ,true}, |
| { ARM::VLD4d32Pseudo_UPD, ARM::VLD4d32_UPD, true, true, true, SingleSpc, 4, 2 ,true}, |
| { ARM::VLD4d8Pseudo, ARM::VLD4d8, true, false, false, SingleSpc, 4, 8 ,true}, |
| { ARM::VLD4d8Pseudo_UPD, ARM::VLD4d8_UPD, true, true, true, SingleSpc, 4, 8 ,true}, |
| |
| { ARM::VLD4q16Pseudo_UPD, ARM::VLD4q16_UPD, true, true, true, EvenDblSpc, 4, 4 ,true}, |
| { ARM::VLD4q16oddPseudo, ARM::VLD4q16, true, false, false, OddDblSpc, 4, 4 ,true}, |
| { ARM::VLD4q16oddPseudo_UPD, ARM::VLD4q16_UPD, true, true, true, OddDblSpc, 4, 4 ,true}, |
| { ARM::VLD4q32Pseudo_UPD, ARM::VLD4q32_UPD, true, true, true, EvenDblSpc, 4, 2 ,true}, |
| { ARM::VLD4q32oddPseudo, ARM::VLD4q32, true, false, false, OddDblSpc, 4, 2 ,true}, |
| { ARM::VLD4q32oddPseudo_UPD, ARM::VLD4q32_UPD, true, true, true, OddDblSpc, 4, 2 ,true}, |
| { ARM::VLD4q8Pseudo_UPD, ARM::VLD4q8_UPD, true, true, true, EvenDblSpc, 4, 8 ,true}, |
| { ARM::VLD4q8oddPseudo, ARM::VLD4q8, true, false, false, OddDblSpc, 4, 8 ,true}, |
| { ARM::VLD4q8oddPseudo_UPD, ARM::VLD4q8_UPD, true, true, true, OddDblSpc, 4, 8 ,true}, |
| |
| { ARM::VST1LNq16Pseudo, ARM::VST1LNd16, false, false, false, EvenDblSpc, 1, 4 ,true}, |
| { ARM::VST1LNq16Pseudo_UPD, ARM::VST1LNd16_UPD, false, true, true, EvenDblSpc, 1, 4 ,true}, |
| { ARM::VST1LNq32Pseudo, ARM::VST1LNd32, false, false, false, EvenDblSpc, 1, 2 ,true}, |
| { ARM::VST1LNq32Pseudo_UPD, ARM::VST1LNd32_UPD, false, true, true, EvenDblSpc, 1, 2 ,true}, |
| { ARM::VST1LNq8Pseudo, ARM::VST1LNd8, false, false, false, EvenDblSpc, 1, 8 ,true}, |
| { ARM::VST1LNq8Pseudo_UPD, ARM::VST1LNd8_UPD, false, true, true, EvenDblSpc, 1, 8 ,true}, |
| |
| { ARM::VST1d64QPseudo, ARM::VST1d64Q, false, false, false, SingleSpc, 4, 1 ,false}, |
| { ARM::VST1d64QPseudoWB_fixed, ARM::VST1d64Qwb_fixed, false, true, false, SingleSpc, 4, 1 ,false}, |
| { ARM::VST1d64QPseudoWB_register, ARM::VST1d64Qwb_register, false, true, true, SingleSpc, 4, 1 ,false}, |
| { ARM::VST1d64TPseudo, ARM::VST1d64T, false, false, false, SingleSpc, 3, 1 ,false}, |
| { ARM::VST1d64TPseudoWB_fixed, ARM::VST1d64Twb_fixed, false, true, false, SingleSpc, 3, 1 ,false}, |
| { ARM::VST1d64TPseudoWB_register, ARM::VST1d64Twb_register, false, true, true, SingleSpc, 3, 1 ,false}, |
| |
| { ARM::VST2LNd16Pseudo, ARM::VST2LNd16, false, false, false, SingleSpc, 2, 4 ,true}, |
| { ARM::VST2LNd16Pseudo_UPD, ARM::VST2LNd16_UPD, false, true, true, SingleSpc, 2, 4 ,true}, |
| { ARM::VST2LNd32Pseudo, ARM::VST2LNd32, false, false, false, SingleSpc, 2, 2 ,true}, |
| { ARM::VST2LNd32Pseudo_UPD, ARM::VST2LNd32_UPD, false, true, true, SingleSpc, 2, 2 ,true}, |
| { ARM::VST2LNd8Pseudo, ARM::VST2LNd8, false, false, false, SingleSpc, 2, 8 ,true}, |
| { ARM::VST2LNd8Pseudo_UPD, ARM::VST2LNd8_UPD, false, true, true, SingleSpc, 2, 8 ,true}, |
| { ARM::VST2LNq16Pseudo, ARM::VST2LNq16, false, false, false, EvenDblSpc, 2, 4,true}, |
| { ARM::VST2LNq16Pseudo_UPD, ARM::VST2LNq16_UPD, false, true, true, EvenDblSpc, 2, 4,true}, |
| { ARM::VST2LNq32Pseudo, ARM::VST2LNq32, false, false, false, EvenDblSpc, 2, 2,true}, |
| { ARM::VST2LNq32Pseudo_UPD, ARM::VST2LNq32_UPD, false, true, true, EvenDblSpc, 2, 2,true}, |
| |
| { ARM::VST2q16Pseudo, ARM::VST2q16, false, false, false, SingleSpc, 4, 4 ,false}, |
| { ARM::VST2q16PseudoWB_fixed, ARM::VST2q16wb_fixed, false, true, false, SingleSpc, 4, 4 ,false}, |
| { ARM::VST2q16PseudoWB_register, ARM::VST2q16wb_register, false, true, true, SingleSpc, 4, 4 ,false}, |
| { ARM::VST2q32Pseudo, ARM::VST2q32, false, false, false, SingleSpc, 4, 2 ,false}, |
| { ARM::VST2q32PseudoWB_fixed, ARM::VST2q32wb_fixed, false, true, false, SingleSpc, 4, 2 ,false}, |
| { ARM::VST2q32PseudoWB_register, ARM::VST2q32wb_register, false, true, true, SingleSpc, 4, 2 ,false}, |
| { ARM::VST2q8Pseudo, ARM::VST2q8, false, false, false, SingleSpc, 4, 8 ,false}, |
| { ARM::VST2q8PseudoWB_fixed, ARM::VST2q8wb_fixed, false, true, false, SingleSpc, 4, 8 ,false}, |
| { ARM::VST2q8PseudoWB_register, ARM::VST2q8wb_register, false, true, true, SingleSpc, 4, 8 ,false}, |
| |
| { ARM::VST3LNd16Pseudo, ARM::VST3LNd16, false, false, false, SingleSpc, 3, 4 ,true}, |
| { ARM::VST3LNd16Pseudo_UPD, ARM::VST3LNd16_UPD, false, true, true, SingleSpc, 3, 4 ,true}, |
| { ARM::VST3LNd32Pseudo, ARM::VST3LNd32, false, false, false, SingleSpc, 3, 2 ,true}, |
| { ARM::VST3LNd32Pseudo_UPD, ARM::VST3LNd32_UPD, false, true, true, SingleSpc, 3, 2 ,true}, |
| { ARM::VST3LNd8Pseudo, ARM::VST3LNd8, false, false, false, SingleSpc, 3, 8 ,true}, |
| { ARM::VST3LNd8Pseudo_UPD, ARM::VST3LNd8_UPD, false, true, true, SingleSpc, 3, 8 ,true}, |
| { ARM::VST3LNq16Pseudo, ARM::VST3LNq16, false, false, false, EvenDblSpc, 3, 4,true}, |
| { ARM::VST3LNq16Pseudo_UPD, ARM::VST3LNq16_UPD, false, true, true, EvenDblSpc, 3, 4,true}, |
| { ARM::VST3LNq32Pseudo, ARM::VST3LNq32, false, false, false, EvenDblSpc, 3, 2,true}, |
| { ARM::VST3LNq32Pseudo_UPD, ARM::VST3LNq32_UPD, false, true, true, EvenDblSpc, 3, 2,true}, |
| |
| { ARM::VST3d16Pseudo, ARM::VST3d16, false, false, false, SingleSpc, 3, 4 ,true}, |
| { ARM::VST3d16Pseudo_UPD, ARM::VST3d16_UPD, false, true, true, SingleSpc, 3, 4 ,true}, |
| { ARM::VST3d32Pseudo, ARM::VST3d32, false, false, false, SingleSpc, 3, 2 ,true}, |
| { ARM::VST3d32Pseudo_UPD, ARM::VST3d32_UPD, false, true, true, SingleSpc, 3, 2 ,true}, |
| { ARM::VST3d8Pseudo, ARM::VST3d8, false, false, false, SingleSpc, 3, 8 ,true}, |
| { ARM::VST3d8Pseudo_UPD, ARM::VST3d8_UPD, false, true, true, SingleSpc, 3, 8 ,true}, |
| |
| { ARM::VST3q16Pseudo_UPD, ARM::VST3q16_UPD, false, true, true, EvenDblSpc, 3, 4 ,true}, |
| { ARM::VST3q16oddPseudo, ARM::VST3q16, false, false, false, OddDblSpc, 3, 4 ,true}, |
| { ARM::VST3q16oddPseudo_UPD, ARM::VST3q16_UPD, false, true, true, OddDblSpc, 3, 4 ,true}, |
| { ARM::VST3q32Pseudo_UPD, ARM::VST3q32_UPD, false, true, true, EvenDblSpc, 3, 2 ,true}, |
| { ARM::VST3q32oddPseudo, ARM::VST3q32, false, false, false, OddDblSpc, 3, 2 ,true}, |
| { ARM::VST3q32oddPseudo_UPD, ARM::VST3q32_UPD, false, true, true, OddDblSpc, 3, 2 ,true}, |
| { ARM::VST3q8Pseudo_UPD, ARM::VST3q8_UPD, false, true, true, EvenDblSpc, 3, 8 ,true}, |
| { ARM::VST3q8oddPseudo, ARM::VST3q8, false, false, false, OddDblSpc, 3, 8 ,true}, |
| { ARM::VST3q8oddPseudo_UPD, ARM::VST3q8_UPD, false, true, true, OddDblSpc, 3, 8 ,true}, |
| |
| { ARM::VST4LNd16Pseudo, ARM::VST4LNd16, false, false, false, SingleSpc, 4, 4 ,true}, |
| { ARM::VST4LNd16Pseudo_UPD, ARM::VST4LNd16_UPD, false, true, true, SingleSpc, 4, 4 ,true}, |
| { ARM::VST4LNd32Pseudo, ARM::VST4LNd32, false, false, false, SingleSpc, 4, 2 ,true}, |
| { ARM::VST4LNd32Pseudo_UPD, ARM::VST4LNd32_UPD, false, true, true, SingleSpc, 4, 2 ,true}, |
| { ARM::VST4LNd8Pseudo, ARM::VST4LNd8, false, false, false, SingleSpc, 4, 8 ,true}, |
| { ARM::VST4LNd8Pseudo_UPD, ARM::VST4LNd8_UPD, false, true, true, SingleSpc, 4, 8 ,true}, |
| { ARM::VST4LNq16Pseudo, ARM::VST4LNq16, false, false, false, EvenDblSpc, 4, 4,true}, |
| { ARM::VST4LNq16Pseudo_UPD, ARM::VST4LNq16_UPD, false, true, true, EvenDblSpc, 4, 4,true}, |
| { ARM::VST4LNq32Pseudo, ARM::VST4LNq32, false, false, false, EvenDblSpc, 4, 2,true}, |
| { ARM::VST4LNq32Pseudo_UPD, ARM::VST4LNq32_UPD, false, true, true, EvenDblSpc, 4, 2,true}, |
| |
| { ARM::VST4d16Pseudo, ARM::VST4d16, false, false, false, SingleSpc, 4, 4 ,true}, |
| { ARM::VST4d16Pseudo_UPD, ARM::VST4d16_UPD, false, true, true, SingleSpc, 4, 4 ,true}, |
| { ARM::VST4d32Pseudo, ARM::VST4d32, false, false, false, SingleSpc, 4, 2 ,true}, |
| { ARM::VST4d32Pseudo_UPD, ARM::VST4d32_UPD, false, true, true, SingleSpc, 4, 2 ,true}, |
| { ARM::VST4d8Pseudo, ARM::VST4d8, false, false, false, SingleSpc, 4, 8 ,true}, |
| { ARM::VST4d8Pseudo_UPD, ARM::VST4d8_UPD, false, true, true, SingleSpc, 4, 8 ,true}, |
| |
| { ARM::VST4q16Pseudo_UPD, ARM::VST4q16_UPD, false, true, true, EvenDblSpc, 4, 4 ,true}, |
| { ARM::VST4q16oddPseudo, ARM::VST4q16, false, false, false, OddDblSpc, 4, 4 ,true}, |
| { ARM::VST4q16oddPseudo_UPD, ARM::VST4q16_UPD, false, true, true, OddDblSpc, 4, 4 ,true}, |
| { ARM::VST4q32Pseudo_UPD, ARM::VST4q32_UPD, false, true, true, EvenDblSpc, 4, 2 ,true}, |
| { ARM::VST4q32oddPseudo, ARM::VST4q32, false, false, false, OddDblSpc, 4, 2 ,true}, |
| { ARM::VST4q32oddPseudo_UPD, ARM::VST4q32_UPD, false, true, true, OddDblSpc, 4, 2 ,true}, |
| { ARM::VST4q8Pseudo_UPD, ARM::VST4q8_UPD, false, true, true, EvenDblSpc, 4, 8 ,true}, |
| { ARM::VST4q8oddPseudo, ARM::VST4q8, false, false, false, OddDblSpc, 4, 8 ,true}, |
| { ARM::VST4q8oddPseudo_UPD, ARM::VST4q8_UPD, false, true, true, OddDblSpc, 4, 8 ,true} |
| }; |
| |
| /// LookupNEONLdSt - Search the NEONLdStTable for information about a NEON |
| /// load or store pseudo instruction. |
| static const NEONLdStTableEntry *LookupNEONLdSt(unsigned Opcode) { |
| const unsigned NumEntries = array_lengthof(NEONLdStTable); |
| |
| #ifndef NDEBUG |
| // Make sure the table is sorted. |
| static bool TableChecked = false; |
| if (!TableChecked) { |
| for (unsigned i = 0; i != NumEntries-1; ++i) |
| assert(NEONLdStTable[i] < NEONLdStTable[i+1] && |
| "NEONLdStTable is not sorted!"); |
| TableChecked = true; |
| } |
| #endif |
| |
| const NEONLdStTableEntry *I = |
| std::lower_bound(NEONLdStTable, NEONLdStTable + NumEntries, Opcode); |
| if (I != NEONLdStTable + NumEntries && I->PseudoOpc == Opcode) |
| return I; |
| return NULL; |
| } |
| |
| /// GetDSubRegs - Get 4 D subregisters of a Q, QQ, or QQQQ register, |
| /// corresponding to the specified register spacing. Not all of the results |
| /// are necessarily valid, e.g., a Q register only has 2 D subregisters. |
| static void GetDSubRegs(unsigned Reg, NEONRegSpacing RegSpc, |
| const TargetRegisterInfo *TRI, unsigned &D0, |
| unsigned &D1, unsigned &D2, unsigned &D3) { |
| if (RegSpc == SingleSpc) { |
| D0 = TRI->getSubReg(Reg, ARM::dsub_0); |
| D1 = TRI->getSubReg(Reg, ARM::dsub_1); |
| D2 = TRI->getSubReg(Reg, ARM::dsub_2); |
| D3 = TRI->getSubReg(Reg, ARM::dsub_3); |
| } else if (RegSpc == EvenDblSpc) { |
| D0 = TRI->getSubReg(Reg, ARM::dsub_0); |
| D1 = TRI->getSubReg(Reg, ARM::dsub_2); |
| D2 = TRI->getSubReg(Reg, ARM::dsub_4); |
| D3 = TRI->getSubReg(Reg, ARM::dsub_6); |
| } else { |
| assert(RegSpc == OddDblSpc && "unknown register spacing"); |
| D0 = TRI->getSubReg(Reg, ARM::dsub_1); |
| D1 = TRI->getSubReg(Reg, ARM::dsub_3); |
| D2 = TRI->getSubReg(Reg, ARM::dsub_5); |
| D3 = TRI->getSubReg(Reg, ARM::dsub_7); |
| } |
| } |
| |
| /// ExpandVLD - Translate VLD pseudo instructions with Q, QQ or QQQQ register |
| /// operands to real VLD instructions with D register operands. |
| void ARMExpandPseudo::ExpandVLD(MachineBasicBlock::iterator &MBBI) { |
| MachineInstr &MI = *MBBI; |
| MachineBasicBlock &MBB = *MI.getParent(); |
| |
| const NEONLdStTableEntry *TableEntry = LookupNEONLdSt(MI.getOpcode()); |
| assert(TableEntry && TableEntry->IsLoad && "NEONLdStTable lookup failed"); |
| NEONRegSpacing RegSpc = (NEONRegSpacing)TableEntry->RegSpacing; |
| unsigned NumRegs = TableEntry->NumRegs; |
| |
| MachineInstrBuilder MIB = BuildMI(MBB, MBBI, MI.getDebugLoc(), |
| TII->get(TableEntry->RealOpc)); |
| unsigned OpIdx = 0; |
| |
| bool DstIsDead = MI.getOperand(OpIdx).isDead(); |
| unsigned DstReg = MI.getOperand(OpIdx++).getReg(); |
| unsigned D0, D1, D2, D3; |
| GetDSubRegs(DstReg, RegSpc, TRI, D0, D1, D2, D3); |
| MIB.addReg(D0, RegState::Define | getDeadRegState(DstIsDead)); |
| if (NumRegs > 1 && TableEntry->copyAllListRegs) |
| MIB.addReg(D1, RegState::Define | getDeadRegState(DstIsDead)); |
| if (NumRegs > 2 && TableEntry->copyAllListRegs) |
| MIB.addReg(D2, RegState::Define | getDeadRegState(DstIsDead)); |
| if (NumRegs > 3 && TableEntry->copyAllListRegs) |
| MIB.addReg(D3, RegState::Define | getDeadRegState(DstIsDead)); |
| |
| if (TableEntry->isUpdating) |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| |
| // Copy the addrmode6 operands. |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| // Copy the am6offset operand. |
| if (TableEntry->hasWritebackOperand) |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| |
| // For an instruction writing double-spaced subregs, the pseudo instruction |
| // has an extra operand that is a use of the super-register. Record the |
| // operand index and skip over it. |
| unsigned SrcOpIdx = 0; |
| if (RegSpc == EvenDblSpc || RegSpc == OddDblSpc) |
| SrcOpIdx = OpIdx++; |
| |
| // Copy the predicate operands. |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| |
| // Copy the super-register source operand used for double-spaced subregs over |
| // to the new instruction as an implicit operand. |
| if (SrcOpIdx != 0) { |
| MachineOperand MO = MI.getOperand(SrcOpIdx); |
| MO.setImplicit(true); |
| MIB.addOperand(MO); |
| } |
| // Add an implicit def for the super-register. |
| MIB.addReg(DstReg, RegState::ImplicitDefine | getDeadRegState(DstIsDead)); |
| TransferImpOps(MI, MIB, MIB); |
| |
| // Transfer memoperands. |
| MIB->setMemRefs(MI.memoperands_begin(), MI.memoperands_end()); |
| |
| MI.eraseFromParent(); |
| } |
| |
| /// ExpandVST - Translate VST pseudo instructions with Q, QQ or QQQQ register |
| /// operands to real VST instructions with D register operands. |
| void ARMExpandPseudo::ExpandVST(MachineBasicBlock::iterator &MBBI) { |
| MachineInstr &MI = *MBBI; |
| MachineBasicBlock &MBB = *MI.getParent(); |
| |
| const NEONLdStTableEntry *TableEntry = LookupNEONLdSt(MI.getOpcode()); |
| assert(TableEntry && !TableEntry->IsLoad && "NEONLdStTable lookup failed"); |
| NEONRegSpacing RegSpc = (NEONRegSpacing)TableEntry->RegSpacing; |
| unsigned NumRegs = TableEntry->NumRegs; |
| |
| MachineInstrBuilder MIB = BuildMI(MBB, MBBI, MI.getDebugLoc(), |
| TII->get(TableEntry->RealOpc)); |
| unsigned OpIdx = 0; |
| if (TableEntry->isUpdating) |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| |
| // Copy the addrmode6 operands. |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| // Copy the am6offset operand. |
| if (TableEntry->hasWritebackOperand) |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| |
| bool SrcIsKill = MI.getOperand(OpIdx).isKill(); |
| bool SrcIsUndef = MI.getOperand(OpIdx).isUndef(); |
| unsigned SrcReg = MI.getOperand(OpIdx++).getReg(); |
| unsigned D0, D1, D2, D3; |
| GetDSubRegs(SrcReg, RegSpc, TRI, D0, D1, D2, D3); |
| MIB.addReg(D0, getUndefRegState(SrcIsUndef)); |
| if (NumRegs > 1 && TableEntry->copyAllListRegs) |
| MIB.addReg(D1, getUndefRegState(SrcIsUndef)); |
| if (NumRegs > 2 && TableEntry->copyAllListRegs) |
| MIB.addReg(D2, getUndefRegState(SrcIsUndef)); |
| if (NumRegs > 3 && TableEntry->copyAllListRegs) |
| MIB.addReg(D3, getUndefRegState(SrcIsUndef)); |
| |
| // Copy the predicate operands. |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| |
| if (SrcIsKill && !SrcIsUndef) // Add an implicit kill for the super-reg. |
| MIB->addRegisterKilled(SrcReg, TRI, true); |
| TransferImpOps(MI, MIB, MIB); |
| |
| // Transfer memoperands. |
| MIB->setMemRefs(MI.memoperands_begin(), MI.memoperands_end()); |
| |
| MI.eraseFromParent(); |
| } |
| |
| /// ExpandLaneOp - Translate VLD*LN and VST*LN instructions with Q, QQ or QQQQ |
| /// register operands to real instructions with D register operands. |
| void ARMExpandPseudo::ExpandLaneOp(MachineBasicBlock::iterator &MBBI) { |
| MachineInstr &MI = *MBBI; |
| MachineBasicBlock &MBB = *MI.getParent(); |
| |
| const NEONLdStTableEntry *TableEntry = LookupNEONLdSt(MI.getOpcode()); |
| assert(TableEntry && "NEONLdStTable lookup failed"); |
| NEONRegSpacing RegSpc = (NEONRegSpacing)TableEntry->RegSpacing; |
| unsigned NumRegs = TableEntry->NumRegs; |
| unsigned RegElts = TableEntry->RegElts; |
| |
| MachineInstrBuilder MIB = BuildMI(MBB, MBBI, MI.getDebugLoc(), |
| TII->get(TableEntry->RealOpc)); |
| unsigned OpIdx = 0; |
| // The lane operand is always the 3rd from last operand, before the 2 |
| // predicate operands. |
| unsigned Lane = MI.getOperand(MI.getDesc().getNumOperands() - 3).getImm(); |
| |
| // Adjust the lane and spacing as needed for Q registers. |
| assert(RegSpc != OddDblSpc && "unexpected register spacing for VLD/VST-lane"); |
| if (RegSpc == EvenDblSpc && Lane >= RegElts) { |
| RegSpc = OddDblSpc; |
| Lane -= RegElts; |
| } |
| assert(Lane < RegElts && "out of range lane for VLD/VST-lane"); |
| |
| unsigned D0 = 0, D1 = 0, D2 = 0, D3 = 0; |
| unsigned DstReg = 0; |
| bool DstIsDead = false; |
| if (TableEntry->IsLoad) { |
| DstIsDead = MI.getOperand(OpIdx).isDead(); |
| DstReg = MI.getOperand(OpIdx++).getReg(); |
| GetDSubRegs(DstReg, RegSpc, TRI, D0, D1, D2, D3); |
| MIB.addReg(D0, RegState::Define | getDeadRegState(DstIsDead)); |
| if (NumRegs > 1) |
| MIB.addReg(D1, RegState::Define | getDeadRegState(DstIsDead)); |
| if (NumRegs > 2) |
| MIB.addReg(D2, RegState::Define | getDeadRegState(DstIsDead)); |
| if (NumRegs > 3) |
| MIB.addReg(D3, RegState::Define | getDeadRegState(DstIsDead)); |
| } |
| |
| if (TableEntry->isUpdating) |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| |
| // Copy the addrmode6 operands. |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| // Copy the am6offset operand. |
| if (TableEntry->hasWritebackOperand) |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| |
| // Grab the super-register source. |
| MachineOperand MO = MI.getOperand(OpIdx++); |
| if (!TableEntry->IsLoad) |
| GetDSubRegs(MO.getReg(), RegSpc, TRI, D0, D1, D2, D3); |
| |
| // Add the subregs as sources of the new instruction. |
| unsigned SrcFlags = (getUndefRegState(MO.isUndef()) | |
| getKillRegState(MO.isKill())); |
| MIB.addReg(D0, SrcFlags); |
| if (NumRegs > 1) |
| MIB.addReg(D1, SrcFlags); |
| if (NumRegs > 2) |
| MIB.addReg(D2, SrcFlags); |
| if (NumRegs > 3) |
| MIB.addReg(D3, SrcFlags); |
| |
| // Add the lane number operand. |
| MIB.addImm(Lane); |
| OpIdx += 1; |
| |
| // Copy the predicate operands. |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| |
| // Copy the super-register source to be an implicit source. |
| MO.setImplicit(true); |
| MIB.addOperand(MO); |
| if (TableEntry->IsLoad) |
| // Add an implicit def for the super-register. |
| MIB.addReg(DstReg, RegState::ImplicitDefine | getDeadRegState(DstIsDead)); |
| TransferImpOps(MI, MIB, MIB); |
| // Transfer memoperands. |
| MIB->setMemRefs(MI.memoperands_begin(), MI.memoperands_end()); |
| MI.eraseFromParent(); |
| } |
| |
| /// ExpandVTBL - Translate VTBL and VTBX pseudo instructions with Q or QQ |
| /// register operands to real instructions with D register operands. |
| void ARMExpandPseudo::ExpandVTBL(MachineBasicBlock::iterator &MBBI, |
| unsigned Opc, bool IsExt) { |
| MachineInstr &MI = *MBBI; |
| MachineBasicBlock &MBB = *MI.getParent(); |
| |
| MachineInstrBuilder MIB = BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(Opc)); |
| unsigned OpIdx = 0; |
| |
| // Transfer the destination register operand. |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| if (IsExt) |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| |
| bool SrcIsKill = MI.getOperand(OpIdx).isKill(); |
| unsigned SrcReg = MI.getOperand(OpIdx++).getReg(); |
| unsigned D0, D1, D2, D3; |
| GetDSubRegs(SrcReg, SingleSpc, TRI, D0, D1, D2, D3); |
| MIB.addReg(D0); |
| |
| // Copy the other source register operand. |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| |
| // Copy the predicate operands. |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| |
| if (SrcIsKill) // Add an implicit kill for the super-reg. |
| MIB->addRegisterKilled(SrcReg, TRI, true); |
| TransferImpOps(MI, MIB, MIB); |
| MI.eraseFromParent(); |
| } |
| |
| void ARMExpandPseudo::ExpandMOV32BitImm(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator &MBBI) { |
| MachineInstr &MI = *MBBI; |
| unsigned Opcode = MI.getOpcode(); |
| unsigned PredReg = 0; |
| ARMCC::CondCodes Pred = getInstrPredicate(&MI, PredReg); |
| unsigned DstReg = MI.getOperand(0).getReg(); |
| bool DstIsDead = MI.getOperand(0).isDead(); |
| bool isCC = Opcode == ARM::MOVCCi32imm || Opcode == ARM::t2MOVCCi32imm; |
| const MachineOperand &MO = MI.getOperand(isCC ? 2 : 1); |
| MachineInstrBuilder LO16, HI16; |
| |
| if (!STI->hasV6T2Ops() && |
| (Opcode == ARM::MOVi32imm || Opcode == ARM::MOVCCi32imm)) { |
| // Expand into a movi + orr. |
| LO16 = BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(ARM::MOVi), DstReg); |
| HI16 = BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(ARM::ORRri)) |
| .addReg(DstReg, RegState::Define | getDeadRegState(DstIsDead)) |
| .addReg(DstReg); |
| |
| assert (MO.isImm() && "MOVi32imm w/ non-immediate source operand!"); |
| unsigned ImmVal = (unsigned)MO.getImm(); |
| unsigned SOImmValV1 = ARM_AM::getSOImmTwoPartFirst(ImmVal); |
| unsigned SOImmValV2 = ARM_AM::getSOImmTwoPartSecond(ImmVal); |
| LO16 = LO16.addImm(SOImmValV1); |
| HI16 = HI16.addImm(SOImmValV2); |
| LO16->setMemRefs(MI.memoperands_begin(), MI.memoperands_end()); |
| HI16->setMemRefs(MI.memoperands_begin(), MI.memoperands_end()); |
| LO16.addImm(Pred).addReg(PredReg).addReg(0); |
| HI16.addImm(Pred).addReg(PredReg).addReg(0); |
| TransferImpOps(MI, LO16, HI16); |
| MI.eraseFromParent(); |
| return; |
| } |
| |
| unsigned LO16Opc = 0; |
| unsigned HI16Opc = 0; |
| if (Opcode == ARM::t2MOVi32imm || Opcode == ARM::t2MOVCCi32imm) { |
| LO16Opc = ARM::t2MOVi16; |
| HI16Opc = ARM::t2MOVTi16; |
| } else { |
| LO16Opc = ARM::MOVi16; |
| HI16Opc = ARM::MOVTi16; |
| } |
| |
| LO16 = BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(LO16Opc), DstReg); |
| HI16 = BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(HI16Opc)) |
| .addReg(DstReg, RegState::Define | getDeadRegState(DstIsDead)) |
| .addReg(DstReg); |
| |
| if (MO.isImm()) { |
| unsigned Imm = MO.getImm(); |
| unsigned Lo16 = Imm & 0xffff; |
| unsigned Hi16 = (Imm >> 16) & 0xffff; |
| LO16 = LO16.addImm(Lo16); |
| HI16 = HI16.addImm(Hi16); |
| } else { |
| const GlobalValue *GV = MO.getGlobal(); |
| unsigned TF = MO.getTargetFlags(); |
| LO16 = LO16.addGlobalAddress(GV, MO.getOffset(), TF | ARMII::MO_LO16); |
| HI16 = HI16.addGlobalAddress(GV, MO.getOffset(), TF | ARMII::MO_HI16); |
| } |
| |
| LO16->setMemRefs(MI.memoperands_begin(), MI.memoperands_end()); |
| HI16->setMemRefs(MI.memoperands_begin(), MI.memoperands_end()); |
| LO16.addImm(Pred).addReg(PredReg); |
| HI16.addImm(Pred).addReg(PredReg); |
| |
| TransferImpOps(MI, LO16, HI16); |
| MI.eraseFromParent(); |
| } |
| |
| bool ARMExpandPseudo::ExpandMI(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator MBBI) { |
| MachineInstr &MI = *MBBI; |
| unsigned Opcode = MI.getOpcode(); |
| switch (Opcode) { |
| default: |
| return false; |
| case ARM::VMOVScc: |
| case ARM::VMOVDcc: { |
| unsigned newOpc = Opcode == ARM::VMOVScc ? ARM::VMOVS : ARM::VMOVD; |
| BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(newOpc), |
| MI.getOperand(1).getReg()) |
| .addOperand(MI.getOperand(2)) |
| .addImm(MI.getOperand(3).getImm()) // 'pred' |
| .addOperand(MI.getOperand(4)); |
| |
| MI.eraseFromParent(); |
| return true; |
| } |
| case ARM::t2MOVCCr: |
| case ARM::MOVCCr: { |
| unsigned Opc = AFI->isThumbFunction() ? ARM::t2MOVr : ARM::MOVr; |
| BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(Opc), |
| MI.getOperand(1).getReg()) |
| .addOperand(MI.getOperand(2)) |
| .addImm(MI.getOperand(3).getImm()) // 'pred' |
| .addOperand(MI.getOperand(4)) |
| .addReg(0); // 's' bit |
| |
| MI.eraseFromParent(); |
| return true; |
| } |
| case ARM::MOVCCsi: { |
| BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(ARM::MOVsi), |
| (MI.getOperand(1).getReg())) |
| .addOperand(MI.getOperand(2)) |
| .addImm(MI.getOperand(3).getImm()) |
| .addImm(MI.getOperand(4).getImm()) // 'pred' |
| .addOperand(MI.getOperand(5)) |
| .addReg(0); // 's' bit |
| |
| MI.eraseFromParent(); |
| return true; |
| } |
| case ARM::MOVCCsr: { |
| BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(ARM::MOVsr), |
| (MI.getOperand(1).getReg())) |
| .addOperand(MI.getOperand(2)) |
| .addOperand(MI.getOperand(3)) |
| .addImm(MI.getOperand(4).getImm()) |
| .addImm(MI.getOperand(5).getImm()) // 'pred' |
| .addOperand(MI.getOperand(6)) |
| .addReg(0); // 's' bit |
| |
| MI.eraseFromParent(); |
| return true; |
| } |
| case ARM::t2MOVCCi16: |
| case ARM::MOVCCi16: { |
| unsigned NewOpc = AFI->isThumbFunction() ? ARM::t2MOVi16 : ARM::MOVi16; |
| BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(NewOpc), |
| MI.getOperand(1).getReg()) |
| .addImm(MI.getOperand(2).getImm()) |
| .addImm(MI.getOperand(3).getImm()) // 'pred' |
| .addOperand(MI.getOperand(4)); |
| MI.eraseFromParent(); |
| return true; |
| } |
| case ARM::t2MOVCCi: |
| case ARM::MOVCCi: { |
| unsigned Opc = AFI->isThumbFunction() ? ARM::t2MOVi : ARM::MOVi; |
| BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(Opc), |
| MI.getOperand(1).getReg()) |
| .addImm(MI.getOperand(2).getImm()) |
| .addImm(MI.getOperand(3).getImm()) // 'pred' |
| .addOperand(MI.getOperand(4)) |
| .addReg(0); // 's' bit |
| |
| MI.eraseFromParent(); |
| return true; |
| } |
| case ARM::t2MVNCCi: |
| case ARM::MVNCCi: { |
| unsigned Opc = AFI->isThumbFunction() ? ARM::t2MVNi : ARM::MVNi; |
| BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(Opc), |
| MI.getOperand(1).getReg()) |
| .addImm(MI.getOperand(2).getImm()) |
| .addImm(MI.getOperand(3).getImm()) // 'pred' |
| .addOperand(MI.getOperand(4)) |
| .addReg(0); // 's' bit |
| |
| MI.eraseFromParent(); |
| return true; |
| } |
| case ARM::t2MOVCClsl: |
| case ARM::t2MOVCClsr: |
| case ARM::t2MOVCCasr: |
| case ARM::t2MOVCCror: { |
| unsigned NewOpc; |
| switch (Opcode) { |
| case ARM::t2MOVCClsl: NewOpc = ARM::t2LSLri; break; |
| case ARM::t2MOVCClsr: NewOpc = ARM::t2LSRri; break; |
| case ARM::t2MOVCCasr: NewOpc = ARM::t2ASRri; break; |
| case ARM::t2MOVCCror: NewOpc = ARM::t2RORri; break; |
| default: llvm_unreachable("unexpeced conditional move"); |
| } |
| BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(NewOpc), |
| MI.getOperand(1).getReg()) |
| .addOperand(MI.getOperand(2)) |
| .addImm(MI.getOperand(3).getImm()) |
| .addImm(MI.getOperand(4).getImm()) // 'pred' |
| .addOperand(MI.getOperand(5)) |
| .addReg(0); // 's' bit |
| MI.eraseFromParent(); |
| return true; |
| } |
| case ARM::Int_eh_sjlj_dispatchsetup: { |
| MachineFunction &MF = *MI.getParent()->getParent(); |
| const ARMBaseInstrInfo *AII = |
| static_cast<const ARMBaseInstrInfo*>(TII); |
| const ARMBaseRegisterInfo &RI = AII->getRegisterInfo(); |
| // For functions using a base pointer, we rematerialize it (via the frame |
| // pointer) here since eh.sjlj.setjmp and eh.sjlj.longjmp don't do it |
| // for us. Otherwise, expand to nothing. |
| if (RI.hasBasePointer(MF)) { |
| int32_t NumBytes = AFI->getFramePtrSpillOffset(); |
| unsigned FramePtr = RI.getFrameRegister(MF); |
| assert(MF.getTarget().getFrameLowering()->hasFP(MF) && |
| "base pointer without frame pointer?"); |
| |
| if (AFI->isThumb2Function()) { |
| emitT2RegPlusImmediate(MBB, MBBI, MI.getDebugLoc(), ARM::R6, |
| FramePtr, -NumBytes, ARMCC::AL, 0, *TII); |
| } else if (AFI->isThumbFunction()) { |
| emitThumbRegPlusImmediate(MBB, MBBI, MI.getDebugLoc(), ARM::R6, |
| FramePtr, -NumBytes, *TII, RI); |
| } else { |
| emitARMRegPlusImmediate(MBB, MBBI, MI.getDebugLoc(), ARM::R6, |
| FramePtr, -NumBytes, ARMCC::AL, 0, |
| *TII); |
| } |
| // If there's dynamic realignment, adjust for it. |
| if (RI.needsStackRealignment(MF)) { |
| MachineFrameInfo *MFI = MF.getFrameInfo(); |
| unsigned MaxAlign = MFI->getMaxAlignment(); |
| assert (!AFI->isThumb1OnlyFunction()); |
| // Emit bic r6, r6, MaxAlign |
| unsigned bicOpc = AFI->isThumbFunction() ? |
| ARM::t2BICri : ARM::BICri; |
| AddDefaultCC(AddDefaultPred(BuildMI(MBB, MBBI, MI.getDebugLoc(), |
| TII->get(bicOpc), ARM::R6) |
| .addReg(ARM::R6, RegState::Kill) |
| .addImm(MaxAlign-1))); |
| } |
| |
| } |
| MI.eraseFromParent(); |
| return true; |
| } |
| |
| case ARM::MOVsrl_flag: |
| case ARM::MOVsra_flag: { |
| // These are just fancy MOVs instructions. |
| AddDefaultPred(BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(ARM::MOVsi), |
| MI.getOperand(0).getReg()) |
| .addOperand(MI.getOperand(1)) |
| .addImm(ARM_AM::getSORegOpc((Opcode == ARM::MOVsrl_flag ? |
| ARM_AM::lsr : ARM_AM::asr), |
| 1))) |
| .addReg(ARM::CPSR, RegState::Define); |
| MI.eraseFromParent(); |
| return true; |
| } |
| case ARM::RRX: { |
| // This encodes as "MOVs Rd, Rm, rrx |
| MachineInstrBuilder MIB = |
| AddDefaultPred(BuildMI(MBB, MBBI, MI.getDebugLoc(),TII->get(ARM::MOVsi), |
| MI.getOperand(0).getReg()) |
| .addOperand(MI.getOperand(1)) |
| .addImm(ARM_AM::getSORegOpc(ARM_AM::rrx, 0))) |
| .addReg(0); |
| TransferImpOps(MI, MIB, MIB); |
| MI.eraseFromParent(); |
| return true; |
| } |
| case ARM::tTPsoft: |
| case ARM::TPsoft: { |
| MachineInstrBuilder MIB = |
| BuildMI(MBB, MBBI, MI.getDebugLoc(), |
| TII->get(Opcode == ARM::tTPsoft ? ARM::tBL : ARM::BL)) |
| .addExternalSymbol("__aeabi_read_tp", 0); |
| |
| MIB->setMemRefs(MI.memoperands_begin(), MI.memoperands_end()); |
| TransferImpOps(MI, MIB, MIB); |
| MI.eraseFromParent(); |
| return true; |
| } |
| case ARM::tLDRpci_pic: |
| case ARM::t2LDRpci_pic: { |
| unsigned NewLdOpc = (Opcode == ARM::tLDRpci_pic) |
| ? ARM::tLDRpci : ARM::t2LDRpci; |
| unsigned DstReg = MI.getOperand(0).getReg(); |
| bool DstIsDead = MI.getOperand(0).isDead(); |
| MachineInstrBuilder MIB1 = |
| AddDefaultPred(BuildMI(MBB, MBBI, MI.getDebugLoc(), |
| TII->get(NewLdOpc), DstReg) |
| .addOperand(MI.getOperand(1))); |
| MIB1->setMemRefs(MI.memoperands_begin(), MI.memoperands_end()); |
| MachineInstrBuilder MIB2 = BuildMI(MBB, MBBI, MI.getDebugLoc(), |
| TII->get(ARM::tPICADD)) |
| .addReg(DstReg, RegState::Define | getDeadRegState(DstIsDead)) |
| .addReg(DstReg) |
| .addOperand(MI.getOperand(2)); |
| TransferImpOps(MI, MIB1, MIB2); |
| MI.eraseFromParent(); |
| return true; |
| } |
| |
| case ARM::MOV_ga_dyn: |
| case ARM::MOV_ga_pcrel: |
| case ARM::MOV_ga_pcrel_ldr: |
| case ARM::t2MOV_ga_dyn: |
| case ARM::t2MOV_ga_pcrel: { |
| // Expand into movw + movw. Also "add pc" / ldr [pc] in PIC mode. |
| unsigned LabelId = AFI->createPICLabelUId(); |
| unsigned DstReg = MI.getOperand(0).getReg(); |
| bool DstIsDead = MI.getOperand(0).isDead(); |
| const MachineOperand &MO1 = MI.getOperand(1); |
| const GlobalValue *GV = MO1.getGlobal(); |
| unsigned TF = MO1.getTargetFlags(); |
| bool isARM = (Opcode != ARM::t2MOV_ga_pcrel && Opcode!=ARM::t2MOV_ga_dyn); |
| bool isPIC = (Opcode != ARM::MOV_ga_dyn && Opcode != ARM::t2MOV_ga_dyn); |
| unsigned LO16Opc = isARM ? ARM::MOVi16_ga_pcrel : ARM::t2MOVi16_ga_pcrel; |
| unsigned HI16Opc = isARM ? ARM::MOVTi16_ga_pcrel :ARM::t2MOVTi16_ga_pcrel; |
| unsigned LO16TF = isPIC |
| ? ARMII::MO_LO16_NONLAZY_PIC : ARMII::MO_LO16_NONLAZY; |
| unsigned HI16TF = isPIC |
| ? ARMII::MO_HI16_NONLAZY_PIC : ARMII::MO_HI16_NONLAZY; |
| unsigned PICAddOpc = isARM |
| ? (Opcode == ARM::MOV_ga_pcrel_ldr ? ARM::PICLDR : ARM::PICADD) |
| : ARM::tPICADD; |
| MachineInstrBuilder MIB1 = BuildMI(MBB, MBBI, MI.getDebugLoc(), |
| TII->get(LO16Opc), DstReg) |
| .addGlobalAddress(GV, MO1.getOffset(), TF | LO16TF) |
| .addImm(LabelId); |
| MachineInstrBuilder MIB2 = BuildMI(MBB, MBBI, MI.getDebugLoc(), |
| TII->get(HI16Opc), DstReg) |
| .addReg(DstReg) |
| .addGlobalAddress(GV, MO1.getOffset(), TF | HI16TF) |
| .addImm(LabelId); |
| if (!isPIC) { |
| TransferImpOps(MI, MIB1, MIB2); |
| MI.eraseFromParent(); |
| return true; |
| } |
| |
| MachineInstrBuilder MIB3 = BuildMI(MBB, MBBI, MI.getDebugLoc(), |
| TII->get(PICAddOpc)) |
| .addReg(DstReg, RegState::Define | getDeadRegState(DstIsDead)) |
| .addReg(DstReg).addImm(LabelId); |
| if (isARM) { |
| AddDefaultPred(MIB3); |
| if (Opcode == ARM::MOV_ga_pcrel_ldr) |
| MIB3->setMemRefs(MI.memoperands_begin(), MI.memoperands_end()); |
| } |
| TransferImpOps(MI, MIB1, MIB3); |
| MI.eraseFromParent(); |
| return true; |
| } |
| |
| case ARM::MOVi32imm: |
| case ARM::MOVCCi32imm: |
| case ARM::t2MOVi32imm: |
| case ARM::t2MOVCCi32imm: |
| ExpandMOV32BitImm(MBB, MBBI); |
| return true; |
| |
| case ARM::SUBS_PC_LR: { |
| MachineInstrBuilder MIB = |
| BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(ARM::SUBri), ARM::PC) |
| .addReg(ARM::LR) |
| .addOperand(MI.getOperand(0)) |
| .addOperand(MI.getOperand(1)) |
| .addOperand(MI.getOperand(2)) |
| .addReg(ARM::CPSR, RegState::Undef); |
| TransferImpOps(MI, MIB, MIB); |
| MI.eraseFromParent(); |
| return true; |
| } |
| case ARM::VLDMQIA: { |
| unsigned NewOpc = ARM::VLDMDIA; |
| MachineInstrBuilder MIB = |
| BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(NewOpc)); |
| unsigned OpIdx = 0; |
| |
| // Grab the Q register destination. |
| bool DstIsDead = MI.getOperand(OpIdx).isDead(); |
| unsigned DstReg = MI.getOperand(OpIdx++).getReg(); |
| |
| // Copy the source register. |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| |
| // Copy the predicate operands. |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| |
| // Add the destination operands (D subregs). |
| unsigned D0 = TRI->getSubReg(DstReg, ARM::dsub_0); |
| unsigned D1 = TRI->getSubReg(DstReg, ARM::dsub_1); |
| MIB.addReg(D0, RegState::Define | getDeadRegState(DstIsDead)) |
| .addReg(D1, RegState::Define | getDeadRegState(DstIsDead)); |
| |
| // Add an implicit def for the super-register. |
| MIB.addReg(DstReg, RegState::ImplicitDefine | getDeadRegState(DstIsDead)); |
| TransferImpOps(MI, MIB, MIB); |
| MIB.setMemRefs(MI.memoperands_begin(), MI.memoperands_end()); |
| MI.eraseFromParent(); |
| return true; |
| } |
| |
| case ARM::VSTMQIA: { |
| unsigned NewOpc = ARM::VSTMDIA; |
| MachineInstrBuilder MIB = |
| BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(NewOpc)); |
| unsigned OpIdx = 0; |
| |
| // Grab the Q register source. |
| bool SrcIsKill = MI.getOperand(OpIdx).isKill(); |
| unsigned SrcReg = MI.getOperand(OpIdx++).getReg(); |
| |
| // Copy the destination register. |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| |
| // Copy the predicate operands. |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| |
| // Add the source operands (D subregs). |
| unsigned D0 = TRI->getSubReg(SrcReg, ARM::dsub_0); |
| unsigned D1 = TRI->getSubReg(SrcReg, ARM::dsub_1); |
| MIB.addReg(D0).addReg(D1); |
| |
| if (SrcIsKill) // Add an implicit kill for the Q register. |
| MIB->addRegisterKilled(SrcReg, TRI, true); |
| |
| TransferImpOps(MI, MIB, MIB); |
| MIB.setMemRefs(MI.memoperands_begin(), MI.memoperands_end()); |
| MI.eraseFromParent(); |
| return true; |
| } |
| case ARM::VDUPfqf: |
| case ARM::VDUPfdf:{ |
| unsigned NewOpc = Opcode == ARM::VDUPfqf ? ARM::VDUPLN32q : |
| ARM::VDUPLN32d; |
| MachineInstrBuilder MIB = |
| BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(NewOpc)); |
| unsigned OpIdx = 0; |
| unsigned SrcReg = MI.getOperand(1).getReg(); |
| unsigned Lane = TRI->getEncodingValue(SrcReg) & 1; |
| unsigned DReg = TRI->getMatchingSuperReg(SrcReg, |
| Lane & 1 ? ARM::ssub_1 : ARM::ssub_0, |
| &ARM::DPR_VFP2RegClass); |
| // The lane is [0,1] for the containing DReg superregister. |
| // Copy the dst/src register operands. |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| MIB.addReg(DReg); |
| ++OpIdx; |
| // Add the lane select operand. |
| MIB.addImm(Lane); |
| // Add the predicate operands. |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| MIB.addOperand(MI.getOperand(OpIdx++)); |
| |
| TransferImpOps(MI, MIB, MIB); |
| MI.eraseFromParent(); |
| return true; |
| } |
| |
| case ARM::VLD2q8Pseudo: |
| case ARM::VLD2q16Pseudo: |
| case ARM::VLD2q32Pseudo: |
| case ARM::VLD2q8PseudoWB_fixed: |
| case ARM::VLD2q16PseudoWB_fixed: |
| case ARM::VLD2q32PseudoWB_fixed: |
| case ARM::VLD2q8PseudoWB_register: |
| case ARM::VLD2q16PseudoWB_register: |
| case ARM::VLD2q32PseudoWB_register: |
| case ARM::VLD3d8Pseudo: |
| case ARM::VLD3d16Pseudo: |
| case ARM::VLD3d32Pseudo: |
| case ARM::VLD1d64TPseudo: |
| case ARM::VLD3d8Pseudo_UPD: |
| case ARM::VLD3d16Pseudo_UPD: |
| case ARM::VLD3d32Pseudo_UPD: |
| case ARM::VLD3q8Pseudo_UPD: |
| case ARM::VLD3q16Pseudo_UPD: |
| case ARM::VLD3q32Pseudo_UPD: |
| case ARM::VLD3q8oddPseudo: |
| case ARM::VLD3q16oddPseudo: |
| case ARM::VLD3q32oddPseudo: |
| case ARM::VLD3q8oddPseudo_UPD: |
| case ARM::VLD3q16oddPseudo_UPD: |
| case ARM::VLD3q32oddPseudo_UPD: |
| case ARM::VLD4d8Pseudo: |
| case ARM::VLD4d16Pseudo: |
| case ARM::VLD4d32Pseudo: |
| case ARM::VLD1d64QPseudo: |
| case ARM::VLD4d8Pseudo_UPD: |
| case ARM::VLD4d16Pseudo_UPD: |
| case ARM::VLD4d32Pseudo_UPD: |
| case ARM::VLD4q8Pseudo_UPD: |
| case ARM::VLD4q16Pseudo_UPD: |
| case ARM::VLD4q32Pseudo_UPD: |
| case ARM::VLD4q8oddPseudo: |
| case ARM::VLD4q16oddPseudo: |
| case ARM::VLD4q32oddPseudo: |
| case ARM::VLD4q8oddPseudo_UPD: |
| case ARM::VLD4q16oddPseudo_UPD: |
| case ARM::VLD4q32oddPseudo_UPD: |
| case ARM::VLD3DUPd8Pseudo: |
| case ARM::VLD3DUPd16Pseudo: |
| case ARM::VLD3DUPd32Pseudo: |
| case ARM::VLD3DUPd8Pseudo_UPD: |
| case ARM::VLD3DUPd16Pseudo_UPD: |
| case ARM::VLD3DUPd32Pseudo_UPD: |
| case ARM::VLD4DUPd8Pseudo: |
| case ARM::VLD4DUPd16Pseudo: |
| case ARM::VLD4DUPd32Pseudo: |
| case ARM::VLD4DUPd8Pseudo_UPD: |
| case ARM::VLD4DUPd16Pseudo_UPD: |
| case ARM::VLD4DUPd32Pseudo_UPD: |
| ExpandVLD(MBBI); |
| return true; |
| |
| case ARM::VST2q8Pseudo: |
| case ARM::VST2q16Pseudo: |
| case ARM::VST2q32Pseudo: |
| case ARM::VST2q8PseudoWB_fixed: |
| case ARM::VST2q16PseudoWB_fixed: |
| case ARM::VST2q32PseudoWB_fixed: |
| case ARM::VST2q8PseudoWB_register: |
| case ARM::VST2q16PseudoWB_register: |
| case ARM::VST2q32PseudoWB_register: |
| case ARM::VST3d8Pseudo: |
| case ARM::VST3d16Pseudo: |
| case ARM::VST3d32Pseudo: |
| case ARM::VST1d64TPseudo: |
| case ARM::VST3d8Pseudo_UPD: |
| case ARM::VST3d16Pseudo_UPD: |
| case ARM::VST3d32Pseudo_UPD: |
| case ARM::VST1d64TPseudoWB_fixed: |
| case ARM::VST1d64TPseudoWB_register: |
| case ARM::VST3q8Pseudo_UPD: |
| case ARM::VST3q16Pseudo_UPD: |
| case ARM::VST3q32Pseudo_UPD: |
| case ARM::VST3q8oddPseudo: |
| case ARM::VST3q16oddPseudo: |
| case ARM::VST3q32oddPseudo: |
| case ARM::VST3q8oddPseudo_UPD: |
| case ARM::VST3q16oddPseudo_UPD: |
| case ARM::VST3q32oddPseudo_UPD: |
| case ARM::VST4d8Pseudo: |
| case ARM::VST4d16Pseudo: |
| case ARM::VST4d32Pseudo: |
| case ARM::VST1d64QPseudo: |
| case ARM::VST4d8Pseudo_UPD: |
| case ARM::VST4d16Pseudo_UPD: |
| case ARM::VST4d32Pseudo_UPD: |
| case ARM::VST1d64QPseudoWB_fixed: |
| case ARM::VST1d64QPseudoWB_register: |
| case ARM::VST4q8Pseudo_UPD: |
| case ARM::VST4q16Pseudo_UPD: |
| case ARM::VST4q32Pseudo_UPD: |
| case ARM::VST4q8oddPseudo: |
| case ARM::VST4q16oddPseudo: |
| case ARM::VST4q32oddPseudo: |
| case ARM::VST4q8oddPseudo_UPD: |
| case ARM::VST4q16oddPseudo_UPD: |
| case ARM::VST4q32oddPseudo_UPD: |
| ExpandVST(MBBI); |
| return true; |
| |
| case ARM::VLD1LNq8Pseudo: |
| case ARM::VLD1LNq16Pseudo: |
| case ARM::VLD1LNq32Pseudo: |
| case ARM::VLD1LNq8Pseudo_UPD: |
| case ARM::VLD1LNq16Pseudo_UPD: |
| case ARM::VLD1LNq32Pseudo_UPD: |
| case ARM::VLD2LNd8Pseudo: |
| case ARM::VLD2LNd16Pseudo: |
| case ARM::VLD2LNd32Pseudo: |
| case ARM::VLD2LNq16Pseudo: |
| case ARM::VLD2LNq32Pseudo: |
| case ARM::VLD2LNd8Pseudo_UPD: |
| case ARM::VLD2LNd16Pseudo_UPD: |
| case ARM::VLD2LNd32Pseudo_UPD: |
| case ARM::VLD2LNq16Pseudo_UPD: |
| case ARM::VLD2LNq32Pseudo_UPD: |
| case ARM::VLD3LNd8Pseudo: |
| case ARM::VLD3LNd16Pseudo: |
| case ARM::VLD3LNd32Pseudo: |
| case ARM::VLD3LNq16Pseudo: |
| case ARM::VLD3LNq32Pseudo: |
| case ARM::VLD3LNd8Pseudo_UPD: |
| case ARM::VLD3LNd16Pseudo_UPD: |
| case ARM::VLD3LNd32Pseudo_UPD: |
| case ARM::VLD3LNq16Pseudo_UPD: |
| case ARM::VLD3LNq32Pseudo_UPD: |
| case ARM::VLD4LNd8Pseudo: |
| case ARM::VLD4LNd16Pseudo: |
| case ARM::VLD4LNd32Pseudo: |
| case ARM::VLD4LNq16Pseudo: |
| case ARM::VLD4LNq32Pseudo: |
| case ARM::VLD4LNd8Pseudo_UPD: |
| case ARM::VLD4LNd16Pseudo_UPD: |
| case ARM::VLD4LNd32Pseudo_UPD: |
| case ARM::VLD4LNq16Pseudo_UPD: |
| case ARM::VLD4LNq32Pseudo_UPD: |
| case ARM::VST1LNq8Pseudo: |
| case ARM::VST1LNq16Pseudo: |
| case ARM::VST1LNq32Pseudo: |
| case ARM::VST1LNq8Pseudo_UPD: |
| case ARM::VST1LNq16Pseudo_UPD: |
| case ARM::VST1LNq32Pseudo_UPD: |
| case ARM::VST2LNd8Pseudo: |
| case ARM::VST2LNd16Pseudo: |
| case ARM::VST2LNd32Pseudo: |
| case ARM::VST2LNq16Pseudo: |
| case ARM::VST2LNq32Pseudo: |
| case ARM::VST2LNd8Pseudo_UPD: |
| case ARM::VST2LNd16Pseudo_UPD: |
| case ARM::VST2LNd32Pseudo_UPD: |
| case ARM::VST2LNq16Pseudo_UPD: |
| case ARM::VST2LNq32Pseudo_UPD: |
| case ARM::VST3LNd8Pseudo: |
| case ARM::VST3LNd16Pseudo: |
| case ARM::VST3LNd32Pseudo: |
| case ARM::VST3LNq16Pseudo: |
| case ARM::VST3LNq32Pseudo: |
| case ARM::VST3LNd8Pseudo_UPD: |
| case ARM::VST3LNd16Pseudo_UPD: |
| case ARM::VST3LNd32Pseudo_UPD: |
| case ARM::VST3LNq16Pseudo_UPD: |
| case ARM::VST3LNq32Pseudo_UPD: |
| case ARM::VST4LNd8Pseudo: |
| case ARM::VST4LNd16Pseudo: |
| case ARM::VST4LNd32Pseudo: |
| case ARM::VST4LNq16Pseudo: |
| case ARM::VST4LNq32Pseudo: |
| case ARM::VST4LNd8Pseudo_UPD: |
| case ARM::VST4LNd16Pseudo_UPD: |
| case ARM::VST4LNd32Pseudo_UPD: |
| case ARM::VST4LNq16Pseudo_UPD: |
| case ARM::VST4LNq32Pseudo_UPD: |
| ExpandLaneOp(MBBI); |
| return true; |
| |
| case ARM::VTBL3Pseudo: ExpandVTBL(MBBI, ARM::VTBL3, false); return true; |
| case ARM::VTBL4Pseudo: ExpandVTBL(MBBI, ARM::VTBL4, false); return true; |
| case ARM::VTBX3Pseudo: ExpandVTBL(MBBI, ARM::VTBX3, true); return true; |
| case ARM::VTBX4Pseudo: ExpandVTBL(MBBI, ARM::VTBX4, true); return true; |
| } |
| } |
| |
| bool ARMExpandPseudo::ExpandMBB(MachineBasicBlock &MBB) { |
| bool Modified = false; |
| |
| MachineBasicBlock::iterator MBBI = MBB.begin(), E = MBB.end(); |
| while (MBBI != E) { |
| MachineBasicBlock::iterator NMBBI = llvm::next(MBBI); |
| Modified |= ExpandMI(MBB, MBBI); |
| MBBI = NMBBI; |
| } |
| |
| return Modified; |
| } |
| |
| bool ARMExpandPseudo::runOnMachineFunction(MachineFunction &MF) { |
| const TargetMachine &TM = MF.getTarget(); |
| TII = static_cast<const ARMBaseInstrInfo*>(TM.getInstrInfo()); |
| TRI = TM.getRegisterInfo(); |
| STI = &TM.getSubtarget<ARMSubtarget>(); |
| AFI = MF.getInfo<ARMFunctionInfo>(); |
| |
| bool Modified = false; |
| for (MachineFunction::iterator MFI = MF.begin(), E = MF.end(); MFI != E; |
| ++MFI) |
| Modified |= ExpandMBB(*MFI); |
| if (VerifyARMPseudo) |
| MF.verify(this, "After expanding ARM pseudo instructions."); |
| return Modified; |
| } |
| |
| /// createARMExpandPseudoPass - returns an instance of the pseudo instruction |
| /// expansion pass. |
| FunctionPass *llvm::createARMExpandPseudoPass() { |
| return new ARMExpandPseudo(); |
| } |