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/PPCBaseInfo.h"
19#include "MCTargetDesc/PPCMCTargetDesc.h"
20#include <string>
21
22// GCC #defines PPC on Linux but we use it as our namespace name
23#undef PPC
24
25namespace llvm {
26  class PPCTargetMachine;
27  class FunctionPass;
28  class JITCodeEmitter;
29  class MachineInstr;
30  class AsmPrinter;
31  class MCInst;
32
33  FunctionPass *createPPCCTRLoops();
34  FunctionPass *createPPCBranchSelectionPass();
35  FunctionPass *createPPCISelDag(PPCTargetMachine &TM);
36  FunctionPass *createPPCJITCodeEmitterPass(PPCTargetMachine &TM,
37                                            JITCodeEmitter &MCE);
38  void LowerPPCMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI,
39                                    AsmPrinter &AP, bool isDarwin);
40
41  namespace PPCII {
42
43  /// Target Operand Flag enum.
44  enum TOF {
45    //===------------------------------------------------------------------===//
46    // PPC Specific MachineOperand flags.
47    MO_NO_FLAG,
48
49    /// MO_DARWIN_STUB - On a symbol operand "FOO", this indicates that the
50    /// reference is actually to the "FOO$stub" symbol.  This is used for calls
51    /// and jumps to external functions on Tiger and earlier.
52    MO_DARWIN_STUB = 1,
53
54    /// MO_PIC_FLAG - If this bit is set, the symbol reference is relative to
55    /// the function's picbase, e.g. lo16(symbol-picbase).
56    MO_PIC_FLAG = 4,
57
58    /// MO_NLP_FLAG - If this bit is set, the symbol reference is actually to
59    /// the non_lazy_ptr for the global, e.g. lo16(symbol$non_lazy_ptr-picbase).
60    MO_NLP_FLAG = 8,
61
62    /// MO_NLP_HIDDEN_FLAG - If this bit is set, the symbol reference is to a
63    /// symbol with hidden visibility.  This causes a different kind of
64    /// non-lazy-pointer to be generated.
65    MO_NLP_HIDDEN_FLAG = 16,
66
67    /// The next are not flags but distinct values.
68    MO_ACCESS_MASK = 224,
69
70    /// MO_LO16, MO_HA16 - lo16(symbol) and ha16(symbol)
71    MO_LO16 = 32, MO_HA16 = 64,
72
73    MO_TPREL16_HA = 96,
74    MO_TPREL16_LO = 128
75  };
76  } // end namespace PPCII
77
78} // end namespace llvm;
79
80#endif
81