mirror of
https://github.com/c64scene-ar/llvm-6502.git
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0b8c9a80f2
into their new header subdirectory: include/llvm/IR. This matches the directory structure of lib, and begins to correct a long standing point of file layout clutter in LLVM. There are still more header files to move here, but I wanted to handle them in separate commits to make tracking what files make sense at each layer easier. The only really questionable files here are the target intrinsic tablegen files. But that's a battle I'd rather not fight today. I've updated both CMake and Makefile build systems (I think, and my tests think, but I may have missed something). I've also re-sorted the includes throughout the project. I'll be committing updates to Clang, DragonEgg, and Polly momentarily. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171366 91177308-0d34-0410-b5e6-96231b3b80d8
82 lines
3.0 KiB
C++
82 lines
3.0 KiB
C++
//===-- X86JITInfo.h - X86 implementation of the JIT interface --*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the X86 implementation of the TargetJITInfo class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef X86JITINFO_H
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#define X86JITINFO_H
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#include "llvm/CodeGen/JITCodeEmitter.h"
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#include "llvm/IR/Function.h"
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#include "llvm/Target/TargetJITInfo.h"
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namespace llvm {
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class X86TargetMachine;
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class X86Subtarget;
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class X86JITInfo : public TargetJITInfo {
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X86TargetMachine &TM;
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const X86Subtarget *Subtarget;
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uintptr_t PICBase;
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char* TLSOffset;
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public:
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explicit X86JITInfo(X86TargetMachine &tm);
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/// replaceMachineCodeForFunction - Make it so that calling the function
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/// whose machine code is at OLD turns into a call to NEW, perhaps by
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/// overwriting OLD with a branch to NEW. This is used for self-modifying
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/// code.
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///
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virtual void replaceMachineCodeForFunction(void *Old, void *New);
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/// emitGlobalValueIndirectSym - Use the specified JITCodeEmitter object
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/// to emit an indirect symbol which contains the address of the specified
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/// ptr.
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virtual void *emitGlobalValueIndirectSym(const GlobalValue* GV, void *ptr,
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JITCodeEmitter &JCE);
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// getStubLayout - Returns the size and alignment of the largest call stub
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// on X86.
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virtual StubLayout getStubLayout();
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/// emitFunctionStub - Use the specified JITCodeEmitter object to emit a
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/// small native function that simply calls the function at the specified
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/// address.
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virtual void *emitFunctionStub(const Function* F, void *Target,
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JITCodeEmitter &JCE);
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/// getPICJumpTableEntry - Returns the value of the jumptable entry for the
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/// specific basic block.
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virtual uintptr_t getPICJumpTableEntry(uintptr_t BB, uintptr_t JTBase);
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/// getLazyResolverFunction - Expose the lazy resolver to the JIT.
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virtual LazyResolverFn getLazyResolverFunction(JITCompilerFn);
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/// relocate - Before the JIT can run a block of code that has been emitted,
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/// it must rewrite the code to contain the actual addresses of any
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/// referenced global symbols.
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virtual void relocate(void *Function, MachineRelocation *MR,
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unsigned NumRelocs, unsigned char* GOTBase);
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/// allocateThreadLocalMemory - Each target has its own way of
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/// handling thread local variables. This method returns a value only
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/// meaningful to the target.
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virtual char* allocateThreadLocalMemory(size_t size);
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/// setPICBase / getPICBase - Getter / setter of PICBase, used to compute
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/// PIC jumptable entry.
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void setPICBase(uintptr_t Base) { PICBase = Base; }
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uintptr_t getPICBase() const { return PICBase; }
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};
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}
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#endif
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