1 //===-- PPC.h - Top-level interface for PowerPC Target ----------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file contains the entry points for global functions defined in the LLVM 11 // PowerPC back-end. 12 // 13 //===----------------------------------------------------------------------===// 14 15 #ifndef LLVM_TARGET_POWERPC_H 16 #define LLVM_TARGET_POWERPC_H 17 18 #include "MCTargetDesc/PPCMCTargetDesc.h" 19 #include <string> 20 21 // GCC #defines PPC on Linux but we use it as our namespace name 22 #undef PPC 23 24 namespace llvm { 25 class PPCTargetMachine; 26 class FunctionPass; 27 class ImmutablePass; 28 class JITCodeEmitter; 29 class MachineInstr; 30 class AsmPrinter; 31 class MCInst; 32 33 FunctionPass *createPPCCTRLoops(PPCTargetMachine &TM); 34 #ifndef NDEBUG 35 FunctionPass *createPPCCTRLoopsVerify(); 36 #endif 37 FunctionPass *createPPCEarlyReturnPass(); 38 FunctionPass *createPPCBranchSelectionPass(); 39 FunctionPass *createPPCISelDag(PPCTargetMachine &TM); 40 FunctionPass *createPPCJITCodeEmitterPass(PPCTargetMachine &TM, 41 JITCodeEmitter &MCE); 42 void LowerPPCMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI, 43 AsmPrinter &AP, bool isDarwin); 44 45 /// \brief Creates an PPC-specific Target Transformation Info pass. 46 ImmutablePass *createPPCTargetTransformInfoPass(const PPCTargetMachine *TM); 47 48 namespace PPCII { 49 50 /// Target Operand Flag enum. 51 enum TOF { 52 //===------------------------------------------------------------------===// 53 // PPC Specific MachineOperand flags. 54 MO_NO_FLAG, 55 56 /// MO_DARWIN_STUB - On a symbol operand "FOO", this indicates that the 57 /// reference is actually to the "FOO$stub" symbol. This is used for calls 58 /// and jumps to external functions on Tiger and earlier. 59 MO_DARWIN_STUB = 1, 60 61 /// MO_PIC_FLAG - If this bit is set, the symbol reference is relative to 62 /// the function's picbase, e.g. lo16(symbol-picbase). 63 MO_PIC_FLAG = 2, 64 65 /// MO_NLP_FLAG - If this bit is set, the symbol reference is actually to 66 /// the non_lazy_ptr for the global, e.g. lo16(symbol$non_lazy_ptr-picbase). 67 MO_NLP_FLAG = 4, 68 69 /// MO_NLP_HIDDEN_FLAG - If this bit is set, the symbol reference is to a 70 /// symbol with hidden visibility. This causes a different kind of 71 /// non-lazy-pointer to be generated. 72 MO_NLP_HIDDEN_FLAG = 8, 73 74 /// The next are not flags but distinct values. 75 MO_ACCESS_MASK = 0xf0, 76 77 /// MO_LO, MO_HA - lo16(symbol) and ha16(symbol) 78 MO_LO = 1 << 4, 79 MO_HA = 2 << 4, 80 81 MO_TPREL_LO = 4 << 4, 82 MO_TPREL_HA = 3 << 4, 83 84 /// These values identify relocations on immediates folded 85 /// into memory operations. 86 MO_DTPREL_LO = 5 << 4, 87 MO_TLSLD_LO = 6 << 4, 88 MO_TOC_LO = 7 << 4, 89 90 // Symbol for VK_PPC_TLS fixup attached to an ADD instruction 91 MO_TLS = 8 << 4 92 }; 93 } // end namespace PPCII 94 95 } // end namespace llvm; 96 97 #endif 98
