mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-10-31 08:16:47 +00:00
108c838093
way for each TargetJITInfo subclass to allocate its own stubs. This means stubs aren't as exactly-sized anymore, but it lets us get rid of TargetJITInfo::emitFunctionStubAtAddr(), which lets ARM and PPC support the eager JIT, fixing http://llvm.org/PR4816. * Rename the JITEmitter's stub creation functions to describe the kind of stub they create. So far, all of them create lazy-compilation stubs, but they sometimes get used when far-call stubs are needed. Fixing http://llvm.org/PR5201 will involve fixing this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89715 91177308-0d34-0410-b5e6-96231b3b80d8
54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
//===- AlphaJITInfo.h - Alpha impl. of the JIT interface ----*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file contains the Alpha implementation of the TargetJITInfo class.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef ALPHA_JITINFO_H
|
|
#define ALPHA_JITINFO_H
|
|
|
|
#include "llvm/Target/TargetJITInfo.h"
|
|
#include <map>
|
|
|
|
namespace llvm {
|
|
class TargetMachine;
|
|
|
|
class AlphaJITInfo : public TargetJITInfo {
|
|
protected:
|
|
TargetMachine &TM;
|
|
|
|
//because gpdist are paired and relative to the pc of the first inst,
|
|
//we need to have some state
|
|
std::map<std::pair<void*, int>, void*> gpdistmap;
|
|
public:
|
|
explicit AlphaJITInfo(TargetMachine &tm) : TM(tm)
|
|
{ useGOT = true; }
|
|
|
|
virtual StubLayout getStubLayout();
|
|
virtual void *emitFunctionStub(const Function* F, void *Fn,
|
|
JITCodeEmitter &JCE);
|
|
virtual LazyResolverFn getLazyResolverFunction(JITCompilerFn);
|
|
virtual void relocate(void *Function, MachineRelocation *MR,
|
|
unsigned NumRelocs, unsigned char* GOTBase);
|
|
|
|
/// 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);
|
|
private:
|
|
static const unsigned GOToffset = 4096;
|
|
|
|
};
|
|
}
|
|
|
|
#endif
|