llvm-6502/lib/Target/SparcV9/SparcV9JITInfo.h

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//===- SparcV9JITInfo.h - SparcV9 Target JIT interface ----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the SparcV9 implementation of the TargetJITInfo class,
// which makes target-specific hooks available to the target-independent
// LLVM JIT compiler.
//
//===----------------------------------------------------------------------===//
#ifndef SPARCV9JITINFO_H
#define SPARCV9JITINFO_H
#include "llvm/Target/TargetJITInfo.h"
namespace llvm {
class TargetMachine;
class SparcV9JITInfo : public TargetJITInfo {
TargetMachine &TM;
public:
SparcV9JITInfo(TargetMachine &tm) : TM(tm) {useGOT = 0;}
/// addPassesToJITCompile - Add passes to the specified pass manager to
/// implement a fast dynamic compiler for this target. Return true if this
/// is not supported for this target.
///
virtual void addPassesToJITCompile(FunctionPassManager &PM);
/// replaceMachineCodeForFunction - Make it so that calling the function
/// whose machine code is at OLD turns into a call to NEW, perhaps by
/// overwriting OLD with a branch to NEW. This is used for self-modifying
/// code.
///
virtual void replaceMachineCodeForFunction (void *Old, void *New);
/// emitFunctionStub - Use the specified MachineCodeEmitter object to emit a
/// small native function that simply calls the function at the specified
/// address. Return the address of the resultant function.
virtual void *emitFunctionStub(void *Fn, MachineCodeEmitter &MCE);
/// getLazyResolverFunction - This method is used to initialize the JIT,
/// giving the target the function that should be used to compile a
/// function, and giving the JIT the target function used to do the lazy
/// resolving.
virtual LazyResolverFn getLazyResolverFunction(JITCompilerFn);
/// relocate - Before the JIT can run a block of code that has been emitted,
/// it must rewrite the code to contain the actual addresses of any
/// referenced global symbols.
virtual void relocate(void *Function, MachineRelocation *MR,
unsigned NumRelocs, unsigned char* GOTBase);
};
}
#endif