PPCJITInfo.h revision c4c6257c1a154279bf10e9498d46d6c1793dbaa7 
1//===- PPCJITInfo.h - PowerPC impl. of the JIT interface --------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file was developed by the LLVM research group and is distributed under
6// the University of Illinois Open Source 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  public:
26    PPCJITInfo(PPCTargetMachine &tm) : TM(tm) {useGOT = 0;}
27
28    /// addPassesToJITCompile - Add passes to the specified pass manager to
29    /// implement a fast dynamic compiler for this target.  Return true if this
30    /// is not supported for this target.
31    ///
32    virtual void addPassesToJITCompile(FunctionPassManager &PM);
33
34    virtual void *emitFunctionStub(void *Fn, MachineCodeEmitter &MCE);
35    virtual LazyResolverFn getLazyResolverFunction(JITCompilerFn);
36    virtual void relocate(void *Function, MachineRelocation *MR,
37                          unsigned NumRelocs, unsigned char* GOTBase);
38
39    /// replaceMachineCodeForFunction - Make it so that calling the function
40    /// whose machine code is at OLD turns into a call to NEW, perhaps by
41    /// overwriting OLD with a branch to NEW.  This is used for self-modifying
42    /// code.
43    ///
44    virtual void replaceMachineCodeForFunction(void *Old, void *New);
45  };
46}
47
48#endif
49