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_LIB_TARGET_POWERPC_PPC_H 16 #define LLVM_LIB_TARGET_POWERPC_PPC_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 PassRegistry; 27 class FunctionPass; 28 class ImmutablePass; 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 *createPPCVSXCopyPass(); 39 FunctionPass *createPPCVSXCopyCleanupPass(); 40 FunctionPass *createPPCVSXFMAMutatePass(); 41 FunctionPass *createPPCBranchSelectionPass(); 42 FunctionPass *createPPCISelDag(PPCTargetMachine &TM); 43 void LowerPPCMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI, 44 AsmPrinter &AP, bool isDarwin); 45 46 /// \brief Creates an PPC-specific Target Transformation Info pass. 47 ImmutablePass *createPPCTargetTransformInfoPass(const PPCTargetMachine *TM); 48 49 void initializePPCVSXFMAMutatePass(PassRegistry&); 50 extern char &PPCVSXFMAMutateID; 51 52 namespace PPCII { 53 54 /// Target Operand Flag enum. 55 enum TOF { 56 //===------------------------------------------------------------------===// 57 // PPC Specific MachineOperand flags. 58 MO_NO_FLAG, 59 60 /// MO_PLT_OR_STUB - On a symbol operand "FOO", this indicates that the 61 /// reference is actually to the "FOO$stub" or "FOO@plt" symbol. This is 62 /// used for calls and jumps to external functions on Tiger and earlier, and 63 /// for PIC calls on Linux and ELF systems. 64 MO_PLT_OR_STUB = 1, 65 66 /// MO_PIC_FLAG - If this bit is set, the symbol reference is relative to 67 /// the function's picbase, e.g. lo16(symbol-picbase). 68 MO_PIC_FLAG = 2, 69 70 /// MO_NLP_FLAG - If this bit is set, the symbol reference is actually to 71 /// the non_lazy_ptr for the global, e.g. lo16(symbol$non_lazy_ptr-picbase). 72 MO_NLP_FLAG = 4, 73 74 /// MO_NLP_HIDDEN_FLAG - If this bit is set, the symbol reference is to a 75 /// symbol with hidden visibility. This causes a different kind of 76 /// non-lazy-pointer to be generated. 77 MO_NLP_HIDDEN_FLAG = 8, 78 79 /// The next are not flags but distinct values. 80 MO_ACCESS_MASK = 0xf0, 81 82 /// MO_LO, MO_HA - lo16(symbol) and ha16(symbol) 83 MO_LO = 1 << 4, 84 MO_HA = 2 << 4, 85 86 MO_TPREL_LO = 4 << 4, 87 MO_TPREL_HA = 3 << 4, 88 89 /// These values identify relocations on immediates folded 90 /// into memory operations. 91 MO_DTPREL_LO = 5 << 4, 92 MO_TLSLD_LO = 6 << 4, 93 MO_TOC_LO = 7 << 4, 94 95 // Symbol for VK_PPC_TLS fixup attached to an ADD instruction 96 MO_TLS = 8 << 4, 97 98 // Symbols for VK_PPC_TLSGD and VK_PPC_TLSLD in __tls_get_addr 99 // call sequences. 100 MO_TLSLD = 9 << 4, 101 MO_TLSGD = 10 << 4 102 }; 103 } // end namespace PPCII 104 105 } // end namespace llvm; 106 107 #endif 108