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 #ifndef NDEBUG 37 FunctionPass *createPPCCTRLoopsVerify(); 38 #endif 39 FunctionPass *createPPCLoopInstrFormPrepPass(PPCTargetMachine &TM); 40 FunctionPass *createPPCTOCRegDepsPass(); 41 FunctionPass *createPPCEarlyReturnPass(); 42 FunctionPass *createPPCVSXCopyPass(); 43 FunctionPass *createPPCVSXFMAMutatePass(); 44 FunctionPass *createPPCVSXSwapRemovalPass(); 45 FunctionPass *createPPCReduceCRLogicalsPass(); 46 FunctionPass *createPPCMIPeepholePass(); 47 FunctionPass *createPPCBranchSelectionPass(); 48 FunctionPass *createPPCBranchCoalescingPass(); 49 FunctionPass *createPPCISelDag(PPCTargetMachine &TM, CodeGenOpt::Level OL); 50 FunctionPass *createPPCTLSDynamicCallPass(); 51 FunctionPass *createPPCBoolRetToIntPass(); 52 FunctionPass *createPPCExpandISELPass(); 53 FunctionPass *createPPCPreEmitPeepholePass(); 54 FunctionPass *createPPCExpandAtomicPseudoPass(); 55 FunctionPass *createPPCCTRLoopsPass(); 56 void LowerPPCMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI, 57 AsmPrinter &AP); 58 bool LowerPPCMachineOperandToMCOperand(const MachineOperand &MO, 59 MCOperand &OutMO, AsmPrinter &AP); 60 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 void initializePPCExpandAtomicPseudoPass(PassRegistry &); 79 void initializePPCCTRLoopsPass(PassRegistry &); 80 void initializePPCDAGToDAGISelPass(PassRegistry &); 81 82 extern char &PPCVSXFMAMutateID; 83 84 ModulePass *createPPCLowerMASSVEntriesPass(); 85 void initializePPCLowerMASSVEntriesPass(PassRegistry &); 86 extern char &PPCLowerMASSVEntriesID; 87 88 ModulePass *createPPCGenScalarMASSEntriesPass(); 89 void initializePPCGenScalarMASSEntriesPass(PassRegistry &); 90 extern char &PPCGenScalarMASSEntriesID; 91 92 InstructionSelector * 93 createPPCInstructionSelector(const PPCTargetMachine &, const PPCSubtarget &, 94 const PPCRegisterBankInfo &); 95 namespace PPCII { 96 97 /// Target Operand Flag enum. 98 enum TOF { 99 //===------------------------------------------------------------------===// 100 // PPC Specific MachineOperand flags. 101 MO_NO_FLAG, 102 103 /// On a symbol operand "FOO", this indicates that the reference is actually 104 /// to "FOO@plt". This is used for calls and jumps to external functions 105 /// and for PIC calls on 32-bit ELF systems. 106 MO_PLT = 1, 107 108 /// MO_PIC_FLAG - If this bit is set, the symbol reference is relative to 109 /// the function's picbase, e.g. lo16(symbol-picbase). 110 MO_PIC_FLAG = 2, 111 112 /// MO_PCREL_FLAG - If this bit is set, the symbol reference is relative to 113 /// the current instruction address(pc), e.g., var@pcrel. Fixup is VK_PCREL. 114 MO_PCREL_FLAG = 4, 115 116 /// MO_GOT_FLAG - If this bit is set the symbol reference is to be computed 117 /// via the GOT. For example when combined with the MO_PCREL_FLAG it should 118 /// produce the relocation @got@pcrel. Fixup is VK_PPC_GOT_PCREL. 119 MO_GOT_FLAG = 8, 120 121 // MO_PCREL_OPT_FLAG - If this bit is set the operand is part of a 122 // PC Relative linker optimization. 123 MO_PCREL_OPT_FLAG = 16, 124 125 /// MO_TLSGD_FLAG - If this bit is set the symbol reference is relative to 126 /// TLS General Dynamic model for Linux and the variable offset of TLS 127 /// General Dynamic model for AIX. 128 MO_TLSGD_FLAG = 32, 129 130 /// MO_TPREL_FLAG - If this bit is set, the symbol reference is relative to 131 /// the thread pointer and the symbol can be used for the TLS Initial Exec 132 /// and Local Exec models. 133 MO_TPREL_FLAG = 64, 134 135 /// MO_TLSLD_FLAG - If this bit is set the symbol reference is relative to 136 /// TLS Local Dynamic model. 137 MO_TLSLD_FLAG = 128, 138 139 /// MO_TLSGDM_FLAG - If this bit is set the symbol reference is relative 140 /// to the region handle of TLS General Dynamic model for AIX. 141 MO_TLSGDM_FLAG = 256, 142 143 /// MO_GOT_TLSGD_PCREL_FLAG - A combintaion of flags, if these bits are set 144 /// they should produce the relocation @got@tlsgd@pcrel. 145 /// Fix up is VK_PPC_GOT_TLSGD_PCREL 146 MO_GOT_TLSGD_PCREL_FLAG = MO_PCREL_FLAG | MO_GOT_FLAG | MO_TLSGD_FLAG, 147 148 /// MO_GOT_TLSLD_PCREL_FLAG - A combintaion of flags, if these bits are set 149 /// they should produce the relocation @got@tlsld@pcrel. 150 /// Fix up is VK_PPC_GOT_TLSLD_PCREL 151 MO_GOT_TLSLD_PCREL_FLAG = MO_PCREL_FLAG | MO_GOT_FLAG | MO_TLSLD_FLAG, 152 153 /// MO_GOT_TPREL_PCREL_FLAG - A combintaion of flags, if these bits are set 154 /// they should produce the relocation @got@tprel@pcrel. 155 /// Fix up is VK_PPC_GOT_TPREL_PCREL 156 MO_GOT_TPREL_PCREL_FLAG = MO_GOT_FLAG | MO_TPREL_FLAG | MO_PCREL_FLAG, 157 158 /// The next are not flags but distinct values. 159 MO_ACCESS_MASK = 0xf00, 160 161 /// MO_LO, MO_HA - lo16(symbol) and ha16(symbol) 162 MO_LO = 1 << 8, 163 MO_HA = 2 << 8, 164 165 MO_TPREL_LO = 4 << 8, 166 MO_TPREL_HA = 3 << 8, 167 168 /// These values identify relocations on immediates folded 169 /// into memory operations. 170 MO_DTPREL_LO = 5 << 8, 171 MO_TLSLD_LO = 6 << 8, 172 MO_TOC_LO = 7 << 8, 173 174 // Symbol for VK_PPC_TLS fixup attached to an ADD instruction 175 MO_TLS = 8 << 8 176 }; 177 } // end namespace PPCII 178 179 } // end namespace llvm; 180 181 #endif 182