1 //===-- PPC.h - Top-level interface for PowerPC Target ----------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file contains the entry points for global functions defined in the LLVM 10 // PowerPC back-end. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_LIB_TARGET_POWERPC_PPC_H 15 #define LLVM_LIB_TARGET_POWERPC_PPC_H 16 17 #include "llvm/Support/CodeGen.h" 18 19 // GCC #defines PPC on Linux but we use it as our namespace name 20 #undef PPC 21 22 namespace llvm { 23 class PPCRegisterBankInfo; 24 class PPCSubtarget; 25 class PPCTargetMachine; 26 class PassRegistry; 27 class FunctionPass; 28 class InstructionSelector; 29 class MachineInstr; 30 class MachineOperand; 31 class AsmPrinter; 32 class MCInst; 33 class MCOperand; 34 class ModulePass; 35 36 FunctionPass *createPPCCTRLoops(); 37 #ifndef NDEBUG 38 FunctionPass *createPPCCTRLoopsVerify(); 39 #endif 40 FunctionPass *createPPCLoopInstrFormPrepPass(PPCTargetMachine &TM); 41 FunctionPass *createPPCTOCRegDepsPass(); 42 FunctionPass *createPPCEarlyReturnPass(); 43 FunctionPass *createPPCVSXCopyPass(); 44 FunctionPass *createPPCVSXFMAMutatePass(); 45 FunctionPass *createPPCVSXSwapRemovalPass(); 46 FunctionPass *createPPCReduceCRLogicalsPass(); 47 FunctionPass *createPPCMIPeepholePass(); 48 FunctionPass *createPPCBranchSelectionPass(); 49 FunctionPass *createPPCBranchCoalescingPass(); 50 FunctionPass *createPPCISelDag(PPCTargetMachine &TM, CodeGenOpt::Level OL); 51 FunctionPass *createPPCTLSDynamicCallPass(); 52 FunctionPass *createPPCBoolRetToIntPass(); 53 FunctionPass *createPPCExpandISELPass(); 54 FunctionPass *createPPCPreEmitPeepholePass(); 55 void LowerPPCMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI, 56 AsmPrinter &AP); 57 bool LowerPPCMachineOperandToMCOperand(const MachineOperand &MO, 58 MCOperand &OutMO, AsmPrinter &AP); 59 60 void initializePPCCTRLoopsPass(PassRegistry&); 61 #ifndef NDEBUG 62 void initializePPCCTRLoopsVerifyPass(PassRegistry&); 63 #endif 64 void initializePPCLoopInstrFormPrepPass(PassRegistry&); 65 void initializePPCTOCRegDepsPass(PassRegistry&); 66 void initializePPCEarlyReturnPass(PassRegistry&); 67 void initializePPCVSXCopyPass(PassRegistry&); 68 void initializePPCVSXFMAMutatePass(PassRegistry&); 69 void initializePPCVSXSwapRemovalPass(PassRegistry&); 70 void initializePPCReduceCRLogicalsPass(PassRegistry&); 71 void initializePPCBSelPass(PassRegistry&); 72 void initializePPCBranchCoalescingPass(PassRegistry&); 73 void initializePPCBoolRetToIntPass(PassRegistry&); 74 void initializePPCExpandISELPass(PassRegistry &); 75 void initializePPCPreEmitPeepholePass(PassRegistry &); 76 void initializePPCTLSDynamicCallPass(PassRegistry &); 77 void initializePPCMIPeepholePass(PassRegistry&); 78 79 extern char &PPCVSXFMAMutateID; 80 81 ModulePass *createPPCLowerMASSVEntriesPass(); 82 void initializePPCLowerMASSVEntriesPass(PassRegistry &); 83 extern char &PPCLowerMASSVEntriesID; 84 85 InstructionSelector * 86 createPPCInstructionSelector(const PPCTargetMachine &, const PPCSubtarget &, 87 const PPCRegisterBankInfo &); 88 namespace PPCII { 89 90 /// Target Operand Flag enum. 91 enum TOF { 92 //===------------------------------------------------------------------===// 93 // PPC Specific MachineOperand flags. 94 MO_NO_FLAG, 95 96 /// On a symbol operand "FOO", this indicates that the reference is actually 97 /// to "FOO@plt". This is used for calls and jumps to external functions 98 /// and for PIC calls on 32-bit ELF systems. 99 MO_PLT = 1, 100 101 /// MO_PIC_FLAG - If this bit is set, the symbol reference is relative to 102 /// the function's picbase, e.g. lo16(symbol-picbase). 103 MO_PIC_FLAG = 2, 104 105 /// MO_PCREL_FLAG - If this bit is set, the symbol reference is relative to 106 /// the current instruction address(pc), e.g., var@pcrel. Fixup is VK_PCREL. 107 MO_PCREL_FLAG = 4, 108 109 /// MO_GOT_FLAG - If this bit is set the symbol reference is to be computed 110 /// via the GOT. For example when combined with the MO_PCREL_FLAG it should 111 /// produce the relocation @got@pcrel. Fixup is VK_PPC_GOT_PCREL. 112 MO_GOT_FLAG = 8, 113 114 // MO_PCREL_OPT_FLAG - If this bit is set the operand is part of a 115 // PC Relative linker optimization. 116 MO_PCREL_OPT_FLAG = 16, 117 118 /// MO_TLSGD_FLAG - If this bit is set the symbol reference is relative to 119 /// TLS General Dynamic model. 120 MO_TLSGD_FLAG = 32, 121 122 /// MO_TPREL_FLAG - If this bit is set the symbol reference is relative to 123 /// TLS Initial Exec model. 124 MO_TPREL_FLAG = 64, 125 126 /// MO_TLSLD_FLAG - If this bit is set the symbol reference is relative to 127 /// TLS Local Dynamic model. 128 MO_TLSLD_FLAG = 128, 129 130 /// MO_GOT_TLSGD_PCREL_FLAG - A combintaion of flags, if these bits are set 131 /// they should produce the relocation @got@tlsgd@pcrel. 132 /// Fix up is VK_PPC_GOT_TLSGD_PCREL 133 MO_GOT_TLSGD_PCREL_FLAG = MO_PCREL_FLAG | MO_GOT_FLAG | MO_TLSGD_FLAG, 134 135 /// MO_GOT_TLSLD_PCREL_FLAG - A combintaion of flags, if these bits are set 136 /// they should produce the relocation @got@tlsld@pcrel. 137 /// Fix up is VK_PPC_GOT_TLSLD_PCREL 138 MO_GOT_TLSLD_PCREL_FLAG = MO_PCREL_FLAG | MO_GOT_FLAG | MO_TLSLD_FLAG, 139 140 /// MO_GOT_TPREL_PCREL_FLAG - A combintaion of flags, if these bits are set 141 /// they should produce the relocation @got@tprel@pcrel. 142 /// Fix up is VK_PPC_GOT_TPREL_PCREL 143 MO_GOT_TPREL_PCREL_FLAG = MO_GOT_FLAG | MO_TPREL_FLAG | MO_PCREL_FLAG, 144 145 /// The next are not flags but distinct values. 146 MO_ACCESS_MASK = 0xf00, 147 148 /// MO_LO, MO_HA - lo16(symbol) and ha16(symbol) 149 MO_LO = 1 << 8, 150 MO_HA = 2 << 8, 151 152 MO_TPREL_LO = 4 << 8, 153 MO_TPREL_HA = 3 << 8, 154 155 /// These values identify relocations on immediates folded 156 /// into memory operations. 157 MO_DTPREL_LO = 5 << 8, 158 MO_TLSLD_LO = 6 << 8, 159 MO_TOC_LO = 7 << 8, 160 161 // Symbol for VK_PPC_TLS fixup attached to an ADD instruction 162 MO_TLS = 8 << 8 163 }; 164 } // end namespace PPCII 165 166 } // end namespace llvm; 167 168 #endif 169