#define DEBUG_TYPE "jit"
#include "JIT.h"
-#include "JITDebugRegisterer.h"
#include "JITDwarfEmitter.h"
+#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/OwningPtr.h"
-#include "llvm/Constants.h"
-#include "llvm/Module.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Analysis/DebugInfo.h"
+#include "llvm/ADT/SmallPtrSet.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/Statistic.h"
+#include "llvm/ADT/ValueMap.h"
#include "llvm/CodeGen/JITCodeEmitter.h"
-#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineCodeInfo.h"
#include "llvm/CodeGen/MachineConstantPool.h"
+#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineJumpTableInfo.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineRelocation.h"
+#include "llvm/DebugInfo.h"
#include "llvm/ExecutionEngine/GenericValue.h"
#include "llvm/ExecutionEngine/JITEventListener.h"
#include "llvm/ExecutionEngine/JITMemoryManager.h"
-#include "llvm/Target/TargetData.h"
-#include "llvm/Target/TargetInstrInfo.h"
-#include "llvm/Target/TargetJITInfo.h"
-#include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetOptions.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/Module.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/Support/Disassembler.h"
-#include "llvm/Support/Memory.h"
-#include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/SmallPtrSet.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/Statistic.h"
-#include "llvm/ADT/ValueMap.h"
+#include "llvm/Target/TargetInstrInfo.h"
+#include "llvm/Target/TargetJITInfo.h"
+#include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetOptions.h"
#include <algorithm>
#ifndef NDEBUG
#include <iomanip>
struct NoRAUWValueMapConfig : public ValueMapConfig<ValueTy> {
typedef JITResolverState *ExtraData;
static void onRAUW(JITResolverState *, Value *Old, Value *New) {
- assert(false && "The JIT doesn't know how to handle a"
- " RAUW on a value it has emitted.");
+ llvm_unreachable("The JIT doesn't know how to handle a"
+ " RAUW on a value it has emitted.");
}
};
/// particular GlobalVariable so that we can reuse them if necessary.
GlobalToIndirectSymMapTy GlobalToIndirectSymMap;
+#ifndef NDEBUG
/// Instance of the JIT this ResolverState serves.
JIT *TheJIT;
+#endif
public:
JITResolverState(JIT *jit) : FunctionToLazyStubMap(this),
- FunctionToCallSitesMap(this),
- TheJIT(jit) {}
+ FunctionToCallSitesMap(this) {
+#ifndef NDEBUG
+ TheJIT = jit;
+#endif
+ }
FunctionToLazyStubMapTy& getFunctionToLazyStubMap(
const MutexGuard& locked) {
/// DE - The dwarf emitter for the jit.
OwningPtr<JITDwarfEmitter> DE;
- /// DR - The debug registerer for the jit.
- OwningPtr<JITDebugRegisterer> DR;
-
/// 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) {
+ EmittedFunctions(this), TheJIT(&jit),
+ JITExceptionHandling(TM.Options.JITExceptionHandling) {
MemMgr = JMM ? JMM : JITMemoryManager::CreateDefaultMemManager();
if (jit.getJITInfo().needsGOT()) {
MemMgr->AllocateGOT();
DEBUG(dbgs() << "JIT is managing a GOT\n");
}
- if (JITExceptionHandling || JITEmitDebugInfo) {
+ if (JITExceptionHandling) {
DE.reset(new JITDwarfEmitter(jit));
}
- if (JITEmitDebugInfo) {
- DR.reset(new JITDebugRegisterer(TM));
- }
}
~JITEmitter() {
delete MemMgr;
}
- /// classof - Methods for support type inquiry through isa, cast, and
- /// dyn_cast:
- ///
- static inline bool classof(const MachineCodeEmitter*) { return true; }
-
JITResolver &getJITResolver() { return Resolver; }
virtual void startFunction(MachineFunction &F);
DEBUG(dbgs() << "JIT: Lazily resolving function '" << F->getName()
<< "' In stub ptr = " << Stub << " actual ptr = "
<< ActualPtr << "\n");
+ (void)ActualPtr;
Result = JR->TheJIT->getPointerToFunction(F);
}
}
static unsigned GetConstantPoolSizeInBytes(MachineConstantPool *MCP,
- const TargetData *TD) {
+ const DataLayout *TD) {
const std::vector<MachineConstantPoolEntry> &Constants = MCP->getConstants();
if (Constants.empty()) return 0;
MachineConstantPoolEntry CPE = Constants[i];
unsigned AlignMask = CPE.getAlignment() - 1;
Size = (Size + AlignMask) & ~AlignMask;
- const Type *Ty = CPE.getType();
+ Type *Ty = CPE.getType();
Size += TD->getTypeAllocSize(Ty);
}
return Size;
void JITEmitter::startFunction(MachineFunction &F) {
DEBUG(dbgs() << "JIT: Starting CodeGen of Function "
- << F.getFunction()->getName() << "\n");
+ << F.getName() << "\n");
uintptr_t ActualSize = 0;
// Set the memory writable, if it's not already
PrevDL = DebugLoc();
DEBUG(dbgs() << "JIT: Finished CodeGen of [" << (void*)FnStart
- << "] Function: " << F.getFunction()->getName()
+ << "] Function: " << F.getName()
<< ": " << (FnEnd-FnStart) << " bytes of text, "
<< Relocations.size() << " relocations\n");
}
});
- if (JITExceptionHandling || JITEmitDebugInfo) {
+ 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);
+ uint8_t *FrameRegister;
+
+ while (true) {
+ BufferBegin = CurBufferPtr = MemMgr->startExceptionTable(F.getFunction(),
+ ActualSize);
+ BufferEnd = BufferBegin+ActualSize;
+ EmittedFunctions[F.getFunction()].ExceptionTable = BufferBegin;
+ uint8_t *EhStart;
+ FrameRegister = DE->EmitDwarfTable(F, *this, FnStart, FnEnd, EhStart);
+
+ // If the buffer was large enough to hold the table then we are done.
+ if (CurBufferPtr != BufferEnd)
+ break;
+
+ // Try again with twice as much space.
+ ActualSize = (CurBufferPtr - BufferBegin) * 2;
+ MemMgr->deallocateExceptionTable(BufferBegin);
+ }
MemMgr->endExceptionTable(F.getFunction(), BufferBegin, CurBufferPtr,
FrameRegister);
- uint8_t *EhEnd = CurBufferPtr;
BufferBegin = SavedBufferBegin;
BufferEnd = SavedBufferEnd;
CurBufferPtr = SavedCurBufferPtr;
if (JITExceptionHandling) {
TheJIT->RegisterTable(F.getFunction(), FrameRegister);
}
-
- if (JITEmitDebugInfo) {
- DebugInfo I;
- I.FnStart = FnStart;
- I.FnEnd = FnEnd;
- I.EhStart = EhStart;
- I.EhEnd = EhEnd;
- DR->RegisterFunction(F.getFunction(), I);
- }
}
if (MMI)
EmittedFunctions.erase(Emitted);
}
- if(JITExceptionHandling) {
+ if (JITExceptionHandling) {
TheJIT->DeregisterTable(F);
}
-
- if (JITEmitDebugInfo) {
- DR->UnregisterFunction(F);
- }
}
-void* JITEmitter::allocateSpace(uintptr_t Size, unsigned Alignment) {
+void *JITEmitter::allocateSpace(uintptr_t Size, unsigned Alignment) {
if (BufferBegin)
return JITCodeEmitter::allocateSpace(Size, Alignment);
return CurBufferPtr;
}
-void* JITEmitter::allocateGlobal(uintptr_t Size, unsigned Alignment) {
+void *JITEmitter::allocateGlobal(uintptr_t Size, unsigned Alignment) {
// Delegate this call through the memory manager.
return MemMgr->allocateGlobal(Size, Alignment);
}
const std::vector<MachineConstantPoolEntry> &Constants = MCP->getConstants();
if (Constants.empty()) return;
- unsigned Size = GetConstantPoolSizeInBytes(MCP, TheJIT->getTargetData());
+ unsigned Size = GetConstantPoolSizeInBytes(MCP, TheJIT->getDataLayout());
unsigned Align = MCP->getConstantPoolAlignment();
ConstantPoolBase = allocateSpace(Size, Align);
ConstantPool = MCP;
DEBUG(dbgs() << "JIT: CP" << i << " at [0x";
dbgs().write_hex(CAddr) << "]\n");
- const Type *Ty = CPE.Val.ConstVal->getType();
- Offset += TheJIT->getTargetData()->getTypeAllocSize(Ty);
+ Type *Ty = CPE.Val.ConstVal->getType();
+ Offset += TheJIT->getDataLayout()->getTypeAllocSize(Ty);
}
}
for (unsigned i = 0, e = JT.size(); i != e; ++i)
NumEntries += JT[i].MBBs.size();
- unsigned EntrySize = MJTI->getEntrySize(*TheJIT->getTargetData());
+ unsigned EntrySize = MJTI->getEntrySize(*TheJIT->getDataLayout());
// Just allocate space for all the jump tables now. We will fix up the actual
// MBB entries in the tables after we emit the code for each block, since then
// we will know the final locations of the MBBs in memory.
JumpTable = MJTI;
JumpTableBase = allocateSpace(NumEntries * EntrySize,
- MJTI->getEntryAlignment(*TheJIT->getTargetData()));
+ MJTI->getEntryAlignment(*TheJIT->getDataLayout()));
}
void JITEmitter::emitJumpTableInfo(MachineJumpTableInfo *MJTI) {
case MachineJumpTableInfo::EK_BlockAddress: {
// EK_BlockAddress - Each entry is a plain address of block, e.g.:
// .word LBB123
- assert(MJTI->getEntrySize(*TheJIT->getTargetData()) == sizeof(void*) &&
+ assert(MJTI->getEntrySize(*TheJIT->getDataLayout()) == sizeof(void*) &&
"Cross JIT'ing?");
// For each jump table, map each target in the jump table to the address of
case MachineJumpTableInfo::EK_Custom32:
case MachineJumpTableInfo::EK_GPRel32BlockAddress:
case MachineJumpTableInfo::EK_LabelDifference32: {
- assert(MJTI->getEntrySize(*TheJIT->getTargetData()) == 4&&"Cross JIT'ing?");
+ assert(MJTI->getEntrySize(*TheJIT->getDataLayout()) == 4&&"Cross JIT'ing?");
// For each jump table, place the offset from the beginning of the table
// to the target address.
int *SlotPtr = (int*)JumpTableBase;
}
break;
}
+ case MachineJumpTableInfo::EK_GPRel64BlockAddress:
+ llvm_unreachable(
+ "JT Info emission not implemented for GPRel64BlockAddress yet.");
}
}
const std::vector<MachineJumpTableEntry> &JT = JumpTable->getJumpTables();
assert(Index < JT.size() && "Invalid jump table index!");
- unsigned EntrySize = JumpTable->getEntrySize(*TheJIT->getTargetData());
+ unsigned EntrySize = JumpTable->getEntrySize(*TheJIT->getDataLayout());
unsigned Offset = 0;
for (unsigned i = 0; i < Index; ++i)
return Addr;
// Get a stub if the target supports it.
- assert(isa<JITEmitter>(JCE) && "Unexpected MCE?");
- JITEmitter *JE = cast<JITEmitter>(getCodeEmitter());
+ JITEmitter *JE = static_cast<JITEmitter*>(getCodeEmitter());
return JE->getJITResolver().getLazyFunctionStub(F);
}
void JIT::updateFunctionStub(Function *F) {
// Get the empty stub we generated earlier.
- assert(isa<JITEmitter>(JCE) && "Unexpected MCE?");
- JITEmitter *JE = cast<JITEmitter>(getCodeEmitter());
+ JITEmitter *JE = static_cast<JITEmitter*>(getCodeEmitter());
void *Stub = JE->getJITResolver().getLazyFunctionStub(F);
void *Addr = getPointerToGlobalIfAvailable(F);
assert(Addr != Stub && "Function must have non-stub address to be updated.");
updateGlobalMapping(F, 0);
// Free the actual memory for the function body and related stuff.
- assert(isa<JITEmitter>(JCE) && "Unexpected MCE?");
- cast<JITEmitter>(JCE)->deallocateMemForFunction(F);
+ static_cast<JITEmitter*>(JCE)->deallocateMemForFunction(F);
}
projects / oota-llvm.git / blobdiff