PPCJITInfo.h revision 210539ebc466521e41e69b119649d59cc721b006 
1//===- PPCJITInfo.h - PowerPC impl. of the JIT interface --------*- 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 PowerPC implementation of the TargetJITInfo class.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef POWERPC_JITINFO_H
15#define POWERPC_JITINFO_H
16
17#include "llvm/Target/TargetJITInfo.h"
18
19namespace llvm {
20  class PPCTargetMachine;
21
22  class PPCJITInfo : public TargetJITInfo {
23  protected:
24    PPCTargetMachine &TM;
25    bool is64Bit;
26  public:
27    PPCJITInfo(PPCTargetMachine &tm, bool tmIs64Bit) : TM(tm) {
28      useGOT = 0;
29      is64Bit = tmIs64Bit;
30    }
31
32    virtual void *emitFunctionStub(const Function* F, void *Fn,
33                                   MachineCodeEmitter &MCE);
34    virtual LazyResolverFn getLazyResolverFunction(JITCompilerFn);
35    virtual void relocate(void *Function, MachineRelocation *MR,
36                          unsigned NumRelocs, unsigned char* GOTBase);
37
38    /// replaceMachineCodeForFunction - Make it so that calling the function
39    /// whose machine code is at OLD turns into a call to NEW, perhaps by
40    /// overwriting OLD with a branch to NEW.  This is used for self-modifying
41    /// code.
42    ///
43    virtual void replaceMachineCodeForFunction(void *Old, void *New);
44
45    /// InvalidateInstructionCache - Before the JIT can run a block of code
46    // that has been emitted it must invalidate the instruction cache on some
47    // platforms.
48    virtual void InvalidateInstructionCache(const void *Addr, unsigned len);
49  };
50}
51
52#endif
53