#define DEBUG_TYPE "jit"
#include "JIT.h"
-#include "JITDwarfEmitter.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/OwningPtr.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Module.h"
+#include "llvm/IR/ValueHandle.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Disassembler.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/Memory.h"
#include "llvm/Support/MutexGuard.h"
-#include "llvm/Support/ValueHandle.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetJITInfo.h"
/// Resolver - This contains info about the currently resolved functions.
JITResolver Resolver;
- /// DE - The dwarf emitter for the jit.
- OwningPtr<JITDwarfEmitter> DE;
-
/// LabelLocations - This vector is a mapping from Label ID's to their
/// address.
DenseMap<MCSymbol*, uintptr_t> LabelLocations;
/// Instance of the JIT
JIT *TheJIT;
- bool JITExceptionHandling;
-
public:
JITEmitter(JIT &jit, JITMemoryManager *JMM, TargetMachine &TM)
: SizeEstimate(0), Resolver(jit, *this), MMI(0), CurFn(0),
- EmittedFunctions(this), TheJIT(&jit),
- JITExceptionHandling(TM.Options.JITExceptionHandling) {
+ EmittedFunctions(this), TheJIT(&jit) {
MemMgr = JMM ? JMM : JITMemoryManager::CreateDefaultMemManager();
if (jit.getJITInfo().needsGOT()) {
MemMgr->AllocateGOT();
DEBUG(dbgs() << "JIT is managing a GOT\n");
}
- if (JITExceptionHandling) {
- DE.reset(new JITDwarfEmitter(jit));
- }
}
~JITEmitter() {
delete MemMgr;
virtual void setModuleInfo(MachineModuleInfo* Info) {
MMI = Info;
- if (DE.get()) DE->setModuleInfo(Info);
}
private:
}
});
- if (JITExceptionHandling) {
- uintptr_t ActualSize = 0;
- SavedBufferBegin = BufferBegin;
- SavedBufferEnd = BufferEnd;
- SavedCurBufferPtr = CurBufferPtr;
-
- BufferBegin = CurBufferPtr = MemMgr->startExceptionTable(F.getFunction(),
- ActualSize);
- BufferEnd = BufferBegin+ActualSize;
- EmittedFunctions[F.getFunction()].ExceptionTable = BufferBegin;
- uint8_t *EhStart;
- uint8_t *FrameRegister = DE->EmitDwarfTable(F, *this, FnStart, FnEnd,
- EhStart);
- MemMgr->endExceptionTable(F.getFunction(), BufferBegin, CurBufferPtr,
- FrameRegister);
- BufferBegin = SavedBufferBegin;
- BufferEnd = SavedBufferEnd;
- CurBufferPtr = SavedCurBufferPtr;
-
- if (JITExceptionHandling) {
- TheJIT->RegisterTable(F.getFunction(), FrameRegister);
- }
- }
-
if (MMI)
MMI->EndFunction();
Emitted = EmittedFunctions.find(F);
if (Emitted != EmittedFunctions.end()) {
MemMgr->deallocateFunctionBody(Emitted->second.FunctionBody);
- MemMgr->deallocateExceptionTable(Emitted->second.ExceptionTable);
TheJIT->NotifyFreeingMachineCode(Emitted->second.Code);
EmittedFunctions.erase(Emitted);
}
-
- if (JITExceptionHandling) {
- TheJIT->DeregisterTable(F);
- }
}