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 FunctionPass *createPPCExpandAtomicPseudoPass(); 56 void LowerPPCMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI, 57 AsmPrinter &AP); 58 bool LowerPPCMachineOperandToMCOperand(const MachineOperand &MO, 59 MCOperand &OutMO, AsmPrinter &AP); 60 61 void initializePPCCTRLoopsPass(PassRegistry&); 62 #ifndef NDEBUG 63 void initializePPCCTRLoopsVerifyPass(PassRegistry&); 64 #endif 65 void initializePPCLoopInstrFormPrepPass(PassRegistry&); 66 void initializePPCTOCRegDepsPass(PassRegistry&); 67 void initializePPCEarlyReturnPass(PassRegistry&); 68 void initializePPCVSXCopyPass(PassRegistry&); 69 void initializePPCVSXFMAMutatePass(PassRegistry&); 70 void initializePPCVSXSwapRemovalPass(PassRegistry&); 71 void initializePPCReduceCRLogicalsPass(PassRegistry&); 72 void initializePPCBSelPass(PassRegistry&); 73 void initializePPCBranchCoalescingPass(PassRegistry&); 74 void initializePPCBoolRetToIntPass(PassRegistry&); 75 void initializePPCExpandISELPass(PassRegistry &); 76 void initializePPCPreEmitPeepholePass(PassRegistry &); 77 void initializePPCTLSDynamicCallPass(PassRegistry &); 78 void initializePPCMIPeepholePass(PassRegistry&); 79 void initializePPCExpandAtomicPseudoPass(PassRegistry &); 80 81 extern char &PPCVSXFMAMutateID; 82 83 ModulePass *createPPCLowerMASSVEntriesPass(); 84 void initializePPCLowerMASSVEntriesPass(PassRegistry &); 85 extern char &PPCLowerMASSVEntriesID; 86 87 InstructionSelector * 88 createPPCInstructionSelector(const PPCTargetMachine &, const PPCSubtarget &, 89 const PPCRegisterBankInfo &); 90 namespace PPCII { 91 92 /// Target Operand Flag enum. 93 enum TOF { 94 //===------------------------------------------------------------------===// 95 // PPC Specific MachineOperand flags. 96 MO_NO_FLAG, 97 98 /// On a symbol operand "FOO", this indicates that the reference is actually 99 /// to "FOO@plt". This is used for calls and jumps to external functions 100 /// and for PIC calls on 32-bit ELF systems. 101 MO_PLT = 1, 102 103 /// MO_PIC_FLAG - If this bit is set, the symbol reference is relative to 104 /// the function's picbase, e.g. lo16(symbol-picbase). 105 MO_PIC_FLAG = 2, 106 107 /// MO_PCREL_FLAG - If this bit is set, the symbol reference is relative to 108 /// the current instruction address(pc), e.g., var@pcrel. Fixup is VK_PCREL. 109 MO_PCREL_FLAG = 4, 110 111 /// MO_GOT_FLAG - If this bit is set the symbol reference is to be computed 112 /// via the GOT. For example when combined with the MO_PCREL_FLAG it should 113 /// produce the relocation @got@pcrel. Fixup is VK_PPC_GOT_PCREL. 114 MO_GOT_FLAG = 8, 115 116 // MO_PCREL_OPT_FLAG - If this bit is set the operand is part of a 117 // PC Relative linker optimization. 118 MO_PCREL_OPT_FLAG = 16, 119 120 /// MO_TLSGD_FLAG - If this bit is set the symbol reference is relative to 121 /// TLS General Dynamic model for Linux and the variable offset of TLS 122 /// General Dynamic model for AIX. 123 MO_TLSGD_FLAG = 32, 124 125 /// MO_TPREL_FLAG - If this bit is set the symbol reference is relative to 126 /// TLS Initial Exec model. 127 MO_TPREL_FLAG = 64, 128 129 /// MO_TLSLD_FLAG - If this bit is set the symbol reference is relative to 130 /// TLS Local Dynamic model. 131 MO_TLSLD_FLAG = 128, 132 133 /// MO_TLSGDM_FLAG - If this bit is set the symbol reference is relative 134 /// to the region handle of TLS General Dynamic model for AIX. 135 MO_TLSGDM_FLAG = 256, 136 137 /// MO_GOT_TLSGD_PCREL_FLAG - A combintaion of flags, if these bits are set 138 /// they should produce the relocation @got@tlsgd@pcrel. 139 /// Fix up is VK_PPC_GOT_TLSGD_PCREL 140 MO_GOT_TLSGD_PCREL_FLAG = MO_PCREL_FLAG | MO_GOT_FLAG | MO_TLSGD_FLAG, 141 142 /// MO_GOT_TLSLD_PCREL_FLAG - A combintaion of flags, if these bits are set 143 /// they should produce the relocation @got@tlsld@pcrel. 144 /// Fix up is VK_PPC_GOT_TLSLD_PCREL 145 MO_GOT_TLSLD_PCREL_FLAG = MO_PCREL_FLAG | MO_GOT_FLAG | MO_TLSLD_FLAG, 146 147 /// MO_GOT_TPREL_PCREL_FLAG - A combintaion of flags, if these bits are set 148 /// they should produce the relocation @got@tprel@pcrel. 149 /// Fix up is VK_PPC_GOT_TPREL_PCREL 150 MO_GOT_TPREL_PCREL_FLAG = MO_GOT_FLAG | MO_TPREL_FLAG | MO_PCREL_FLAG, 151 152 /// The next are not flags but distinct values. 153 MO_ACCESS_MASK = 0xf00, 154 155 /// MO_LO, MO_HA - lo16(symbol) and ha16(symbol) 156 MO_LO = 1 << 8, 157 MO_HA = 2 << 8, 158 159 MO_TPREL_LO = 4 << 8, 160 MO_TPREL_HA = 3 << 8, 161 162 /// These values identify relocations on immediates folded 163 /// into memory operations. 164 MO_DTPREL_LO = 5 << 8, 165 MO_TLSLD_LO = 6 << 8, 166 MO_TOC_LO = 7 << 8, 167 168 // Symbol for VK_PPC_TLS fixup attached to an ADD instruction 169 MO_TLS = 8 << 8 170 }; 171 } // end namespace PPCII 172 173 } // end namespace llvm; 174 175 #endif 176