llvm::X86JITInfo Class Reference

#include <X86JITInfo.h>

Inheritance diagram for llvm::X86JITInfo:

Collaboration diagram for llvm::X86JITInfo:

List of all members.

Public Member Functions

X86JITInfo (X86TargetMachine &tm)

virtual void replaceMachineCodeForFunction (void *Old, void *New)

virtual void * emitGlobalValueIndirectSym (const GlobalValue *GV, void *ptr, MachineCodeEmitter &MCE)

virtual void * emitFunctionStub (const Function *F, void *Fn, MachineCodeEmitter &MCE)

virtual uintptr_t getPICJumpTableEntry (uintptr_t BB, uintptr_t JTBase)

virtual LazyResolverFn getLazyResolverFunction (JITCompilerFn)

getLazyResolverFunction - Expose the lazy resolver to the JIT.

virtual void relocate (void *Function, MachineRelocation *MR, unsigned NumRelocs, unsigned char *GOTBase)

virtual char * allocateThreadLocalMemory (size_t size)

void setPICBase (uintptr_t Base)

uintptr_t getPICBase () const

Detailed Description

Definition at line 23 of file X86JITInfo.h.

Constructor & Destructor Documentation

llvm::X86JITInfo::X86JITInfo ( X86TargetMachine & tm ) [inline, explicit]

Definition at line 28 of file X86JITInfo.h.

References llvm::TargetJITInfo::useGOT.

Member Function Documentation

void X86JITInfo::replaceMachineCodeForFunction	(	void *	Old,
		void *	New
	)			`[virtual]`

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.

Implements llvm::TargetJITInfo.

Definition at line 33 of file X86JITInfo.cpp.

void * X86JITInfo::emitGlobalValueIndirectSym	(	const GlobalValue *	GV,
		void *	ptr,
		MachineCodeEmitter &	MCE
	)			`[virtual]`

emitGlobalValueIndirectSym - Use the specified MachineCodeEmitter object to emit an indirect symbol which contains the address of the specified ptr.

Reimplemented from llvm::TargetJITInfo.

Definition at line 416 of file X86JITInfo.cpp.

References llvm::MachineCodeEmitter::emitWordLE(), llvm::MachineCodeEmitter::finishGVStub(), and llvm::MachineCodeEmitter::startGVStub().

void * X86JITInfo::emitFunctionStub	(	const Function *	F,
		void *	Fn,
		MachineCodeEmitter &	MCE
	)			`[virtual]`

emitFunctionStub - Use the specified MachineCodeEmitter object to emit a small native function that simply calls the function at the specified address.

Reimplemented from llvm::TargetJITInfo.

Definition at line 429 of file X86JITInfo.cpp.

References llvm::MachineCodeEmitter::emitByte(), llvm::MachineCodeEmitter::emitWordLE(), llvm::MachineCodeEmitter::finishGVStub(), llvm::MachineCodeEmitter::getCurrentPCValue(), llvm::MachineCodeEmitter::startGVStub(), and X86CompilationCallback().

uintptr_t X86JITInfo::getPICJumpTableEntry	(	uintptr_t	BB,
		uintptr_t	Entry
	)			`[virtual]`

getPICJumpTableEntry - Returns the value of the jumptable entry for the specific basic block.

Reimplemented from llvm::TargetJITInfo.

Definition at line 479 of file X86JITInfo.cpp.

TargetJITInfo::LazyResolverFn X86JITInfo::getLazyResolverFunction ( JITCompilerFn F ) [virtual]

getLazyResolverFunction - Expose the lazy resolver to the JIT.

Definition at line 393 of file X86JITInfo.cpp.

References c, llvm::N86::EAX, llvm::N86::EBX, llvm::N86::ECX, llvm::N86::EDX, llvm::X86::GetCpuIDAndInfo(), JITCompilerFunction, and X86CompilationCallback().

void X86JITInfo::relocate	(	void *	Function,
		MachineRelocation *	MR,
		unsigned	NumRelocs,
		unsigned char *	GOTBase
	)			`[virtual]`

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.

Reimplemented from llvm::TargetJITInfo.

Definition at line 490 of file X86JITInfo.cpp.

References llvm::MachineRelocation::getConstantVal(), llvm::MachineRelocation::getMachineCodeOffset(), llvm::MachineRelocation::getRelocationType(), llvm::MachineRelocation::getResultPointer(), llvm::X86::reloc_absolute_dword, llvm::X86::reloc_absolute_word, llvm::X86::reloc_pcrel_word, and llvm::X86::reloc_picrel_word.

char * X86JITInfo::allocateThreadLocalMemory ( size_t size ) [virtual]

allocateThreadLocalMemory - Each target has its own way of handling thread local variables. This method returns a value only meaningful to the target.

Reimplemented from llvm::TargetJITInfo.

Definition at line 522 of file X86JITInfo.cpp.

void llvm::X86JITInfo::setPICBase ( uintptr_t Base ) [inline]

setPICBase / getPICBase - Getter / setter of PICBase, used to compute PIC jumptable entry.

Definition at line 72 of file X86JITInfo.h.

uintptr_t llvm::X86JITInfo::getPICBase ( ) const [inline]

Definition at line 73 of file X86JITInfo.h.

The documentation for this class was generated from the following files:


Public Member Functions
	X86JITInfo (X86TargetMachine &tm)
virtual void	replaceMachineCodeForFunction (void Old, void New)
virtual void *	emitGlobalValueIndirectSym (const GlobalValue GV, void ptr, MachineCodeEmitter &MCE)
virtual void *	emitFunctionStub (const Function F, void Fn, MachineCodeEmitter &MCE)
virtual uintptr_t	getPICJumpTableEntry (uintptr_t BB, uintptr_t JTBase)
virtual LazyResolverFn	getLazyResolverFunction (JITCompilerFn)
	getLazyResolverFunction - Expose the lazy resolver to the JIT.
virtual void	relocate (void Function, MachineRelocation MR, unsigned NumRelocs, unsigned char *GOTBase)
virtual char *	allocateThreadLocalMemory (size_t size)
void	setPICBase (uintptr_t Base)
uintptr_t	getPICBase () const