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
22namespace llvm {
23  class PPCTargetMachine;
24  class PassRegistry;
25  class FunctionPass;
26  class MachineInstr;
27  class MachineOperand;
28  class AsmPrinter;
29  class MCInst;
30  class MCOperand;
31  class ModulePass;
32
33  FunctionPass *createPPCCTRLoops();
34#ifndef NDEBUG
35  FunctionPass *createPPCCTRLoopsVerify();
36#endif
37  FunctionPass *createPPCLoopInstrFormPrepPass(PPCTargetMachine &TM);
38  FunctionPass *createPPCTOCRegDepsPass();
39  FunctionPass *createPPCEarlyReturnPass();
40  FunctionPass *createPPCVSXCopyPass();
41  FunctionPass *createPPCVSXFMAMutatePass();
42  FunctionPass *createPPCVSXSwapRemovalPass();
43  FunctionPass *createPPCReduceCRLogicalsPass();
44  FunctionPass *createPPCMIPeepholePass();
45  FunctionPass *createPPCBranchSelectionPass();
46  FunctionPass *createPPCBranchCoalescingPass();
47  FunctionPass *createPPCQPXLoadSplatPass();
48  FunctionPass *createPPCISelDag(PPCTargetMachine &TM, CodeGenOpt::Level OL);
49  FunctionPass *createPPCTLSDynamicCallPass();
50  FunctionPass *createPPCBoolRetToIntPass();
51  FunctionPass *createPPCExpandISELPass();
52  FunctionPass *createPPCPreEmitPeepholePass();
53  void LowerPPCMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI,
54                                    AsmPrinter &AP, bool IsDarwin);
55  bool LowerPPCMachineOperandToMCOperand(const MachineOperand &MO,
56                                         MCOperand &OutMO, AsmPrinter &AP,
57                                         bool IsDarwin);
58
59  void initializePPCCTRLoopsPass(PassRegistry&);
60#ifndef NDEBUG
61  void initializePPCCTRLoopsVerifyPass(PassRegistry&);
62#endif
63  void initializePPCLoopInstrFormPrepPass(PassRegistry&);
64  void initializePPCTOCRegDepsPass(PassRegistry&);
65  void initializePPCEarlyReturnPass(PassRegistry&);
66  void initializePPCVSXCopyPass(PassRegistry&);
67  void initializePPCVSXFMAMutatePass(PassRegistry&);
68  void initializePPCVSXSwapRemovalPass(PassRegistry&);
69  void initializePPCReduceCRLogicalsPass(PassRegistry&);
70  void initializePPCBSelPass(PassRegistry&);
71  void initializePPCBranchCoalescingPass(PassRegistry&);
72  void initializePPCQPXLoadSplatPass(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  namespace PPCII {
86
87  /// Target Operand Flag enum.
88  enum TOF {
89    //===------------------------------------------------------------------===//
90    // PPC Specific MachineOperand flags.
91    MO_NO_FLAG,
92
93    /// On a symbol operand "FOO", this indicates that the reference is actually
94    /// to "FOO@plt".  This is used for calls and jumps to external functions
95    /// and for PIC calls on 32-bit ELF systems.
96    MO_PLT = 1,
97
98    /// MO_PIC_FLAG - If this bit is set, the symbol reference is relative to
99    /// the function's picbase, e.g. lo16(symbol-picbase).
100    MO_PIC_FLAG = 2,
101
102    /// MO_NLP_FLAG - If this bit is set, the symbol reference is actually to
103    /// the non_lazy_ptr for the global, e.g. lo16(symbol$non_lazy_ptr-picbase).
104    MO_NLP_FLAG = 4,
105
106    /// MO_NLP_HIDDEN_FLAG - If this bit is set, the symbol reference is to a
107    /// symbol with hidden visibility.  This causes a different kind of
108    /// non-lazy-pointer to be generated.
109    MO_NLP_HIDDEN_FLAG = 8,
110
111    /// The next are not flags but distinct values.
112    MO_ACCESS_MASK = 0xf0,
113
114    /// MO_LO, MO_HA - lo16(symbol) and ha16(symbol)
115    MO_LO = 1 << 4,
116    MO_HA = 2 << 4,
117
118    MO_TPREL_LO = 4 << 4,
119    MO_TPREL_HA = 3 << 4,
120
121    /// These values identify relocations on immediates folded
122    /// into memory operations.
123    MO_DTPREL_LO = 5 << 4,
124    MO_TLSLD_LO = 6 << 4,
125    MO_TOC_LO = 7 << 4,
126
127    // Symbol for VK_PPC_TLS fixup attached to an ADD instruction
128    MO_TLS = 8 << 4
129  };
130  } // end namespace PPCII
131
132} // end namespace llvm;
133
134#endif
135