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
24namespace 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 *createPPCLoopDataPrefetchPass();
38  FunctionPass *createPPCLoopPreIncPrepPass(PPCTargetMachine &TM);
39  FunctionPass *createPPCTOCRegDepsPass();
40  FunctionPass *createPPCEarlyReturnPass();
41  FunctionPass *createPPCVSXCopyPass();
42  FunctionPass *createPPCVSXFMAMutatePass();
43  FunctionPass *createPPCVSXSwapRemovalPass();
44  FunctionPass *createPPCMIPeepholePass();
45  FunctionPass *createPPCBranchSelectionPass();
46  FunctionPass *createPPCISelDag(PPCTargetMachine &TM);
47  FunctionPass *createPPCTLSDynamicCallPass();
48  FunctionPass *createPPCBoolRetToIntPass();
49  void LowerPPCMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI,
50                                    AsmPrinter &AP, bool isDarwin);
51
52  void initializePPCVSXFMAMutatePass(PassRegistry&);
53  void initializePPCBoolRetToIntPass(PassRegistry&);
54  extern char &PPCVSXFMAMutateID;
55
56  namespace PPCII {
57
58  /// Target Operand Flag enum.
59  enum TOF {
60    //===------------------------------------------------------------------===//
61    // PPC Specific MachineOperand flags.
62    MO_NO_FLAG,
63
64    /// MO_PLT_OR_STUB - On a symbol operand "FOO", this indicates that the
65    /// reference is actually to the "FOO$stub" or "FOO@plt" symbol.  This is
66    /// used for calls and jumps to external functions on Tiger and earlier, and
67    /// for PIC calls on Linux and ELF systems.
68    MO_PLT_OR_STUB = 1,
69
70    /// MO_PIC_FLAG - If this bit is set, the symbol reference is relative to
71    /// the function's picbase, e.g. lo16(symbol-picbase).
72    MO_PIC_FLAG = 2,
73
74    /// MO_NLP_FLAG - If this bit is set, the symbol reference is actually to
75    /// the non_lazy_ptr for the global, e.g. lo16(symbol$non_lazy_ptr-picbase).
76    MO_NLP_FLAG = 4,
77
78    /// MO_NLP_HIDDEN_FLAG - If this bit is set, the symbol reference is to a
79    /// symbol with hidden visibility.  This causes a different kind of
80    /// non-lazy-pointer to be generated.
81    MO_NLP_HIDDEN_FLAG = 8,
82
83    /// The next are not flags but distinct values.
84    MO_ACCESS_MASK = 0xf0,
85
86    /// MO_LO, MO_HA - lo16(symbol) and ha16(symbol)
87    MO_LO = 1 << 4,
88    MO_HA = 2 << 4,
89
90    MO_TPREL_LO = 4 << 4,
91    MO_TPREL_HA = 3 << 4,
92
93    /// These values identify relocations on immediates folded
94    /// into memory operations.
95    MO_DTPREL_LO = 5 << 4,
96    MO_TLSLD_LO  = 6 << 4,
97    MO_TOC_LO    = 7 << 4,
98
99    // Symbol for VK_PPC_TLS fixup attached to an ADD instruction
100    MO_TLS       = 8 << 4
101  };
102  } // end namespace PPCII
103
104} // end namespace llvm;
105
106#endif
107