1 //===- SparcV9JITInfo.h - SparcV9 Target JIT interface ----------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
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.
8 //===----------------------------------------------------------------------===//
10 // This file contains the SparcV9 implementation of the TargetJITInfo class,
11 // which makes target-specific hooks available to the target-independent
14 //===----------------------------------------------------------------------===//
16 #ifndef SPARCV9JITINFO_H
17 #define SPARCV9JITINFO_H
19 #include "llvm/Target/TargetJITInfo.h"
24 class SparcV9JITInfo : public TargetJITInfo {
27 SparcV9JITInfo(TargetMachine &tm) : TM(tm) {useGOT = 0;}
29 /// addPassesToJITCompile - Add passes to the specified pass manager to
30 /// implement a fast dynamic compiler for this target. Return true if this
31 /// is not supported for this target.
33 virtual void addPassesToJITCompile(FunctionPassManager &PM);
35 /// replaceMachineCodeForFunction - Make it so that calling the function
36 /// whose machine code is at OLD turns into a call to NEW, perhaps by
37 /// overwriting OLD with a branch to NEW. This is used for self-modifying
40 virtual void replaceMachineCodeForFunction (void *Old, void *New);
43 /// emitFunctionStub - Use the specified MachineCodeEmitter object to emit a
44 /// small native function that simply calls the function at the specified
45 /// address. Return the address of the resultant function.
46 virtual void *emitFunctionStub(void *Fn, MachineCodeEmitter &MCE);
48 /// getLazyResolverFunction - This method is used to initialize the JIT,
49 /// giving the target the function that should be used to compile a
50 /// function, and giving the JIT the target function used to do the lazy
52 virtual LazyResolverFn getLazyResolverFunction(JITCompilerFn);
54 /// relocate - Before the JIT can run a block of code that has been emitted,
55 /// it must rewrite the code to contain the actual addresses of any
56 /// referenced global symbols.
57 virtual void relocate(void *Function, MachineRelocation *MR,
58 unsigned NumRelocs, unsigned char* GOTBase);