/3rd_party/llvm/lib/ExecutionEngine/JIT/JIT.cpp
https://code.google.com/p/softart/ · C++ · 692 lines · 480 code · 92 blank · 120 comment · 103 complexity · 00548d3534851280ec627b4ed6f56a21 MD5 · raw file
- //===-- JIT.cpp - LLVM Just in Time Compiler ------------------------------===//
- //
- // The LLVM Compiler Infrastructure
- //
- // This file is distributed under the University of Illinois Open Source
- // License. See LICENSE.TXT for details.
- //
- //===----------------------------------------------------------------------===//
- //
- // This tool implements a just-in-time compiler for LLVM, allowing direct
- // execution of LLVM bitcode in an efficient manner.
- //
- //===----------------------------------------------------------------------===//
- #include "JIT.h"
- #include "llvm/ADT/SmallPtrSet.h"
- #include "llvm/CodeGen/JITCodeEmitter.h"
- #include "llvm/CodeGen/MachineCodeInfo.h"
- #include "llvm/Config/config.h"
- #include "llvm/ExecutionEngine/GenericValue.h"
- #include "llvm/ExecutionEngine/JITEventListener.h"
- #include "llvm/ExecutionEngine/JITMemoryManager.h"
- #include "llvm/IR/Constants.h"
- #include "llvm/IR/DataLayout.h"
- #include "llvm/IR/DerivedTypes.h"
- #include "llvm/IR/Function.h"
- #include "llvm/IR/GlobalVariable.h"
- #include "llvm/IR/Instructions.h"
- #include "llvm/Support/Dwarf.h"
- #include "llvm/Support/DynamicLibrary.h"
- #include "llvm/Support/ErrorHandling.h"
- #include "llvm/Support/ManagedStatic.h"
- #include "llvm/Support/MutexGuard.h"
- #include "llvm/Target/TargetJITInfo.h"
- #include "llvm/Target/TargetMachine.h"
- using namespace llvm;
- #ifdef __APPLE__
- // Apple gcc defaults to -fuse-cxa-atexit (i.e. calls __cxa_atexit instead
- // of atexit). It passes the address of linker generated symbol __dso_handle
- // to the function.
- // This configuration change happened at version 5330.
- # include <AvailabilityMacros.h>
- # if defined(MAC_OS_X_VERSION_10_4) && \
- ((MAC_OS_X_VERSION_MIN_REQUIRED > MAC_OS_X_VERSION_10_4) || \
- (MAC_OS_X_VERSION_MIN_REQUIRED == MAC_OS_X_VERSION_10_4 && \
- __APPLE_CC__ >= 5330))
- # ifndef HAVE___DSO_HANDLE
- # define HAVE___DSO_HANDLE 1
- # endif
- # endif
- #endif
- #if HAVE___DSO_HANDLE
- extern void *__dso_handle __attribute__ ((__visibility__ ("hidden")));
- #endif
- namespace {
- static struct RegisterJIT {
- RegisterJIT() { JIT::Register(); }
- } JITRegistrator;
- }
- extern "C" void LLVMLinkInJIT() {
- }
- /// createJIT - This is the factory method for creating a JIT for the current
- /// machine, it does not fall back to the interpreter. This takes ownership
- /// of the module.
- ExecutionEngine *JIT::createJIT(Module *M,
- std::string *ErrorStr,
- JITMemoryManager *JMM,
- bool GVsWithCode,
- TargetMachine *TM) {
- // Try to register the program as a source of symbols to resolve against.
- //
- // FIXME: Don't do this here.
- sys::DynamicLibrary::LoadLibraryPermanently(0, NULL);
- // If the target supports JIT code generation, create the JIT.
- if (TargetJITInfo *TJ = TM->getJITInfo()) {
- return new JIT(M, *TM, *TJ, JMM, GVsWithCode);
- } else {
- if (ErrorStr)
- *ErrorStr = "target does not support JIT code generation";
- return 0;
- }
- }
- namespace {
- /// This class supports the global getPointerToNamedFunction(), which allows
- /// bugpoint or gdb users to search for a function by name without any context.
- class JitPool {
- SmallPtrSet<JIT*, 1> JITs; // Optimize for process containing just 1 JIT.
- mutable sys::Mutex Lock;
- public:
- void Add(JIT *jit) {
- MutexGuard guard(Lock);
- JITs.insert(jit);
- }
- void Remove(JIT *jit) {
- MutexGuard guard(Lock);
- JITs.erase(jit);
- }
- void *getPointerToNamedFunction(const char *Name) const {
- MutexGuard guard(Lock);
- assert(JITs.size() != 0 && "No Jit registered");
- //search function in every instance of JIT
- for (SmallPtrSet<JIT*, 1>::const_iterator Jit = JITs.begin(),
- end = JITs.end();
- Jit != end; ++Jit) {
- if (Function *F = (*Jit)->FindFunctionNamed(Name))
- return (*Jit)->getPointerToFunction(F);
- }
- // The function is not available : fallback on the first created (will
- // search in symbol of the current program/library)
- return (*JITs.begin())->getPointerToNamedFunction(Name);
- }
- };
- ManagedStatic<JitPool> AllJits;
- }
- extern "C" {
- // getPointerToNamedFunction - This function is used as a global wrapper to
- // JIT::getPointerToNamedFunction for the purpose of resolving symbols when
- // bugpoint is debugging the JIT. In that scenario, we are loading an .so and
- // need to resolve function(s) that are being mis-codegenerated, so we need to
- // resolve their addresses at runtime, and this is the way to do it.
- void *getPointerToNamedFunction(const char *Name) {
- return AllJits->getPointerToNamedFunction(Name);
- }
- }
- JIT::JIT(Module *M, TargetMachine &tm, TargetJITInfo &tji,
- JITMemoryManager *jmm, bool GVsWithCode)
- : ExecutionEngine(M), TM(tm), TJI(tji),
- JMM(jmm ? jmm : JITMemoryManager::CreateDefaultMemManager()),
- AllocateGVsWithCode(GVsWithCode), isAlreadyCodeGenerating(false) {
- setDataLayout(TM.getDataLayout());
- jitstate = new JITState(M);
- // Initialize JCE
- JCE = createEmitter(*this, JMM, TM);
- // Register in global list of all JITs.
- AllJits->Add(this);
- // Add target data
- MutexGuard locked(lock);
- FunctionPassManager &PM = jitstate->getPM(locked);
- PM.add(new DataLayout(*TM.getDataLayout()));
- // Turn the machine code intermediate representation into bytes in memory that
- // may be executed.
- if (TM.addPassesToEmitMachineCode(PM, *JCE)) {
- report_fatal_error("Target does not support machine code emission!");
- }
- // Initialize passes.
- PM.doInitialization();
- }
- JIT::~JIT() {
- // Cleanup.
- AllJits->Remove(this);
- delete jitstate;
- delete JCE;
- // JMM is a ownership of JCE, so we no need delete JMM here.
- delete &TM;
- }
- /// addModule - Add a new Module to the JIT. If we previously removed the last
- /// Module, we need re-initialize jitstate with a valid Module.
- void JIT::addModule(Module *M) {
- MutexGuard locked(lock);
- if (Modules.empty()) {
- assert(!jitstate && "jitstate should be NULL if Modules vector is empty!");
- jitstate = new JITState(M);
- FunctionPassManager &PM = jitstate->getPM(locked);
- PM.add(new DataLayout(*TM.getDataLayout()));
- // Turn the machine code intermediate representation into bytes in memory
- // that may be executed.
- if (TM.addPassesToEmitMachineCode(PM, *JCE)) {
- report_fatal_error("Target does not support machine code emission!");
- }
- // Initialize passes.
- PM.doInitialization();
- }
- ExecutionEngine::addModule(M);
- }
- /// removeModule - If we are removing the last Module, invalidate the jitstate
- /// since the PassManager it contains references a released Module.
- bool JIT::removeModule(Module *M) {
- bool result = ExecutionEngine::removeModule(M);
- MutexGuard locked(lock);
- if (jitstate && jitstate->getModule() == M) {
- delete jitstate;
- jitstate = 0;
- }
- if (!jitstate && !Modules.empty()) {
- jitstate = new JITState(Modules[0]);
- FunctionPassManager &PM = jitstate->getPM(locked);
- PM.add(new DataLayout(*TM.getDataLayout()));
- // Turn the machine code intermediate representation into bytes in memory
- // that may be executed.
- if (TM.addPassesToEmitMachineCode(PM, *JCE)) {
- report_fatal_error("Target does not support machine code emission!");
- }
- // Initialize passes.
- PM.doInitialization();
- }
- return result;
- }
- /// run - Start execution with the specified function and arguments.
- ///
- GenericValue JIT::runFunction(Function *F,
- const std::vector<GenericValue> &ArgValues) {
- assert(F && "Function *F was null at entry to run()");
- void *FPtr = getPointerToFunction(F);
- assert(FPtr && "Pointer to fn's code was null after getPointerToFunction");
- FunctionType *FTy = F->getFunctionType();
- Type *RetTy = FTy->getReturnType();
- assert((FTy->getNumParams() == ArgValues.size() ||
- (FTy->isVarArg() && FTy->getNumParams() <= ArgValues.size())) &&
- "Wrong number of arguments passed into function!");
- assert(FTy->getNumParams() == ArgValues.size() &&
- "This doesn't support passing arguments through varargs (yet)!");
- // Handle some common cases first. These cases correspond to common `main'
- // prototypes.
- if (RetTy->isIntegerTy(32) || RetTy->isVoidTy()) {
- switch (ArgValues.size()) {
- case 3:
- if (FTy->getParamType(0)->isIntegerTy(32) &&
- FTy->getParamType(1)->isPointerTy() &&
- FTy->getParamType(2)->isPointerTy()) {
- int (*PF)(int, char **, const char **) =
- (int(*)(int, char **, const char **))(intptr_t)FPtr;
- // Call the function.
- GenericValue rv;
- rv.IntVal = APInt(32, PF(ArgValues[0].IntVal.getZExtValue(),
- (char **)GVTOP(ArgValues[1]),
- (const char **)GVTOP(ArgValues[2])));
- return rv;
- }
- break;
- case 2:
- if (FTy->getParamType(0)->isIntegerTy(32) &&
- FTy->getParamType(1)->isPointerTy()) {
- int (*PF)(int, char **) = (int(*)(int, char **))(intptr_t)FPtr;
- // Call the function.
- GenericValue rv;
- rv.IntVal = APInt(32, PF(ArgValues[0].IntVal.getZExtValue(),
- (char **)GVTOP(ArgValues[1])));
- return rv;
- }
- break;
- case 1:
- if (FTy->getParamType(0)->isIntegerTy(32)) {
- GenericValue rv;
- int (*PF)(int) = (int(*)(int))(intptr_t)FPtr;
- rv.IntVal = APInt(32, PF(ArgValues[0].IntVal.getZExtValue()));
- return rv;
- }
- if (FTy->getParamType(0)->isPointerTy()) {
- GenericValue rv;
- int (*PF)(char *) = (int(*)(char *))(intptr_t)FPtr;
- rv.IntVal = APInt(32, PF((char*)GVTOP(ArgValues[0])));
- return rv;
- }
- break;
- }
- }
- // Handle cases where no arguments are passed first.
- if (ArgValues.empty()) {
- GenericValue rv;
- switch (RetTy->getTypeID()) {
- default: llvm_unreachable("Unknown return type for function call!");
- case Type::IntegerTyID: {
- unsigned BitWidth = cast<IntegerType>(RetTy)->getBitWidth();
- if (BitWidth == 1)
- rv.IntVal = APInt(BitWidth, ((bool(*)())(intptr_t)FPtr)());
- else if (BitWidth <= 8)
- rv.IntVal = APInt(BitWidth, ((char(*)())(intptr_t)FPtr)());
- else if (BitWidth <= 16)
- rv.IntVal = APInt(BitWidth, ((short(*)())(intptr_t)FPtr)());
- else if (BitWidth <= 32)
- rv.IntVal = APInt(BitWidth, ((int(*)())(intptr_t)FPtr)());
- else if (BitWidth <= 64)
- rv.IntVal = APInt(BitWidth, ((int64_t(*)())(intptr_t)FPtr)());
- else
- llvm_unreachable("Integer types > 64 bits not supported");
- return rv;
- }
- case Type::VoidTyID:
- rv.IntVal = APInt(32, ((int(*)())(intptr_t)FPtr)());
- return rv;
- case Type::FloatTyID:
- rv.FloatVal = ((float(*)())(intptr_t)FPtr)();
- return rv;
- case Type::DoubleTyID:
- rv.DoubleVal = ((double(*)())(intptr_t)FPtr)();
- return rv;
- case Type::X86_FP80TyID:
- case Type::FP128TyID:
- case Type::PPC_FP128TyID:
- llvm_unreachable("long double not supported yet");
- case Type::PointerTyID:
- return PTOGV(((void*(*)())(intptr_t)FPtr)());
- }
- }
- // Okay, this is not one of our quick and easy cases. Because we don't have a
- // full FFI, we have to codegen a nullary stub function that just calls the
- // function we are interested in, passing in constants for all of the
- // arguments. Make this function and return.
- // First, create the function.
- FunctionType *STy=FunctionType::get(RetTy, false);
- Function *Stub = Function::Create(STy, Function::InternalLinkage, "",
- F->getParent());
- // Insert a basic block.
- BasicBlock *StubBB = BasicBlock::Create(F->getContext(), "", Stub);
- // Convert all of the GenericValue arguments over to constants. Note that we
- // currently don't support varargs.
- SmallVector<Value*, 8> Args;
- for (unsigned i = 0, e = ArgValues.size(); i != e; ++i) {
- Constant *C = 0;
- Type *ArgTy = FTy->getParamType(i);
- const GenericValue &AV = ArgValues[i];
- switch (ArgTy->getTypeID()) {
- default: llvm_unreachable("Unknown argument type for function call!");
- case Type::IntegerTyID:
- C = ConstantInt::get(F->getContext(), AV.IntVal);
- break;
- case Type::FloatTyID:
- C = ConstantFP::get(F->getContext(), APFloat(AV.FloatVal));
- break;
- case Type::DoubleTyID:
- C = ConstantFP::get(F->getContext(), APFloat(AV.DoubleVal));
- break;
- case Type::PPC_FP128TyID:
- case Type::X86_FP80TyID:
- case Type::FP128TyID:
- C = ConstantFP::get(F->getContext(), APFloat(ArgTy->getFltSemantics(),
- AV.IntVal));
- break;
- case Type::PointerTyID:
- void *ArgPtr = GVTOP(AV);
- if (sizeof(void*) == 4)
- C = ConstantInt::get(Type::getInt32Ty(F->getContext()),
- (int)(intptr_t)ArgPtr);
- else
- C = ConstantInt::get(Type::getInt64Ty(F->getContext()),
- (intptr_t)ArgPtr);
- // Cast the integer to pointer
- C = ConstantExpr::getIntToPtr(C, ArgTy);
- break;
- }
- Args.push_back(C);
- }
- CallInst *TheCall = CallInst::Create(F, Args, "", StubBB);
- TheCall->setCallingConv(F->getCallingConv());
- TheCall->setTailCall();
- if (!TheCall->getType()->isVoidTy())
- // Return result of the call.
- ReturnInst::Create(F->getContext(), TheCall, StubBB);
- else
- ReturnInst::Create(F->getContext(), StubBB); // Just return void.
- // Finally, call our nullary stub function.
- GenericValue Result = runFunction(Stub, std::vector<GenericValue>());
- // Erase it, since no other function can have a reference to it.
- Stub->eraseFromParent();
- // And return the result.
- return Result;
- }
- void JIT::RegisterJITEventListener(JITEventListener *L) {
- if (L == NULL)
- return;
- MutexGuard locked(lock);
- EventListeners.push_back(L);
- }
- void JIT::UnregisterJITEventListener(JITEventListener *L) {
- if (L == NULL)
- return;
- MutexGuard locked(lock);
- std::vector<JITEventListener*>::reverse_iterator I=
- std::find(EventListeners.rbegin(), EventListeners.rend(), L);
- if (I != EventListeners.rend()) {
- std::swap(*I, EventListeners.back());
- EventListeners.pop_back();
- }
- }
- void JIT::NotifyFunctionEmitted(
- const Function &F,
- void *Code, size_t Size,
- const JITEvent_EmittedFunctionDetails &Details) {
- MutexGuard locked(lock);
- for (unsigned I = 0, S = EventListeners.size(); I < S; ++I) {
- EventListeners[I]->NotifyFunctionEmitted(F, Code, Size, Details);
- }
- }
- void JIT::NotifyFreeingMachineCode(void *OldPtr) {
- MutexGuard locked(lock);
- for (unsigned I = 0, S = EventListeners.size(); I < S; ++I) {
- EventListeners[I]->NotifyFreeingMachineCode(OldPtr);
- }
- }
- /// runJITOnFunction - Run the FunctionPassManager full of
- /// just-in-time compilation passes on F, hopefully filling in
- /// GlobalAddress[F] with the address of F's machine code.
- ///
- void JIT::runJITOnFunction(Function *F, MachineCodeInfo *MCI) {
- MutexGuard locked(lock);
- class MCIListener : public JITEventListener {
- MachineCodeInfo *const MCI;
- public:
- MCIListener(MachineCodeInfo *mci) : MCI(mci) {}
- virtual void NotifyFunctionEmitted(const Function &,
- void *Code, size_t Size,
- const EmittedFunctionDetails &) {
- MCI->setAddress(Code);
- MCI->setSize(Size);
- }
- };
- MCIListener MCIL(MCI);
- if (MCI)
- RegisterJITEventListener(&MCIL);
- runJITOnFunctionUnlocked(F, locked);
- if (MCI)
- UnregisterJITEventListener(&MCIL);
- }
- void JIT::runJITOnFunctionUnlocked(Function *F, const MutexGuard &locked) {
- assert(!isAlreadyCodeGenerating && "Error: Recursive compilation detected!");
- jitTheFunction(F, locked);
- // If the function referred to another function that had not yet been
- // read from bitcode, and we are jitting non-lazily, emit it now.
- while (!jitstate->getPendingFunctions(locked).empty()) {
- Function *PF = jitstate->getPendingFunctions(locked).back();
- jitstate->getPendingFunctions(locked).pop_back();
- assert(!PF->hasAvailableExternallyLinkage() &&
- "Externally-defined function should not be in pending list.");
- jitTheFunction(PF, locked);
- // Now that the function has been jitted, ask the JITEmitter to rewrite
- // the stub with real address of the function.
- updateFunctionStub(PF);
- }
- }
- void JIT::jitTheFunction(Function *F, const MutexGuard &locked) {
- isAlreadyCodeGenerating = true;
- jitstate->getPM(locked).run(*F);
- isAlreadyCodeGenerating = false;
- // clear basic block addresses after this function is done
- getBasicBlockAddressMap(locked).clear();
- }
- /// getPointerToFunction - This method is used to get the address of the
- /// specified function, compiling it if necessary.
- ///
- void *JIT::getPointerToFunction(Function *F) {
- if (void *Addr = getPointerToGlobalIfAvailable(F))
- return Addr; // Check if function already code gen'd
- MutexGuard locked(lock);
- // Now that this thread owns the lock, make sure we read in the function if it
- // exists in this Module.
- std::string ErrorMsg;
- if (F->Materialize(&ErrorMsg)) {
- report_fatal_error("Error reading function '" + F->getName()+
- "' from bitcode file: " + ErrorMsg);
- }
- // ... and check if another thread has already code gen'd the function.
- if (void *Addr = getPointerToGlobalIfAvailable(F))
- return Addr;
- if (F->isDeclaration() || F->hasAvailableExternallyLinkage()) {
- bool AbortOnFailure = !F->hasExternalWeakLinkage();
- void *Addr = getPointerToNamedFunction(F->getName(), AbortOnFailure);
- addGlobalMapping(F, Addr);
- return Addr;
- }
- runJITOnFunctionUnlocked(F, locked);
- void *Addr = getPointerToGlobalIfAvailable(F);
- assert(Addr && "Code generation didn't add function to GlobalAddress table!");
- return Addr;
- }
- void JIT::addPointerToBasicBlock(const BasicBlock *BB, void *Addr) {
- MutexGuard locked(lock);
- BasicBlockAddressMapTy::iterator I =
- getBasicBlockAddressMap(locked).find(BB);
- if (I == getBasicBlockAddressMap(locked).end()) {
- getBasicBlockAddressMap(locked)[BB] = Addr;
- } else {
- // ignore repeats: some BBs can be split into few MBBs?
- }
- }
- void JIT::clearPointerToBasicBlock(const BasicBlock *BB) {
- MutexGuard locked(lock);
- getBasicBlockAddressMap(locked).erase(BB);
- }
- void *JIT::getPointerToBasicBlock(BasicBlock *BB) {
- // make sure it's function is compiled by JIT
- (void)getPointerToFunction(BB->getParent());
- // resolve basic block address
- MutexGuard locked(lock);
- BasicBlockAddressMapTy::iterator I =
- getBasicBlockAddressMap(locked).find(BB);
- if (I != getBasicBlockAddressMap(locked).end()) {
- return I->second;
- } else {
- llvm_unreachable("JIT does not have BB address for address-of-label, was"
- " it eliminated by optimizer?");
- }
- }
- void *JIT::getPointerToNamedFunction(const std::string &Name,
- bool AbortOnFailure){
- if (!isSymbolSearchingDisabled()) {
- void *ptr = JMM->getPointerToNamedFunction(Name, false);
- if (ptr)
- return ptr;
- }
- /// If a LazyFunctionCreator is installed, use it to get/create the function.
- if (LazyFunctionCreator)
- if (void *RP = LazyFunctionCreator(Name))
- return RP;
- if (AbortOnFailure) {
- report_fatal_error("Program used external function '"+Name+
- "' which could not be resolved!");
- }
- return 0;
- }
- /// getOrEmitGlobalVariable - Return the address of the specified global
- /// variable, possibly emitting it to memory if needed. This is used by the
- /// Emitter.
- void *JIT::getOrEmitGlobalVariable(const GlobalVariable *GV) {
- MutexGuard locked(lock);
- void *Ptr = getPointerToGlobalIfAvailable(GV);
- if (Ptr) return Ptr;
- // If the global is external, just remember the address.
- if (GV->isDeclaration() || GV->hasAvailableExternallyLinkage()) {
- #if HAVE___DSO_HANDLE
- if (GV->getName() == "__dso_handle")
- return (void*)&__dso_handle;
- #endif
- Ptr = sys::DynamicLibrary::SearchForAddressOfSymbol(GV->getName());
- if (Ptr == 0) {
- report_fatal_error("Could not resolve external global address: "
- +GV->getName());
- }
- addGlobalMapping(GV, Ptr);
- } else {
- // If the global hasn't been emitted to memory yet, allocate space and
- // emit it into memory.
- Ptr = getMemoryForGV(GV);
- addGlobalMapping(GV, Ptr);
- EmitGlobalVariable(GV); // Initialize the variable.
- }
- return Ptr;
- }
- /// recompileAndRelinkFunction - This method is used to force a function
- /// which has already been compiled, to be compiled again, possibly
- /// after it has been modified. Then the entry to the old copy is overwritten
- /// with a branch to the new copy. If there was no old copy, this acts
- /// just like JIT::getPointerToFunction().
- ///
- void *JIT::recompileAndRelinkFunction(Function *F) {
- void *OldAddr = getPointerToGlobalIfAvailable(F);
- // If it's not already compiled there is no reason to patch it up.
- if (OldAddr == 0) { return getPointerToFunction(F); }
- // Delete the old function mapping.
- addGlobalMapping(F, 0);
- // Recodegen the function
- runJITOnFunction(F);
- // Update state, forward the old function to the new function.
- void *Addr = getPointerToGlobalIfAvailable(F);
- assert(Addr && "Code generation didn't add function to GlobalAddress table!");
- TJI.replaceMachineCodeForFunction(OldAddr, Addr);
- return Addr;
- }
- /// getMemoryForGV - This method abstracts memory allocation of global
- /// variable so that the JIT can allocate thread local variables depending
- /// on the target.
- ///
- char* JIT::getMemoryForGV(const GlobalVariable* GV) {
- char *Ptr;
- // GlobalVariable's which are not "constant" will cause trouble in a server
- // situation. It's returned in the same block of memory as code which may
- // not be writable.
- if (isGVCompilationDisabled() && !GV->isConstant()) {
- report_fatal_error("Compilation of non-internal GlobalValue is disabled!");
- }
- // Some applications require globals and code to live together, so they may
- // be allocated into the same buffer, but in general globals are allocated
- // through the memory manager which puts them near the code but not in the
- // same buffer.
- Type *GlobalType = GV->getType()->getElementType();
- size_t S = getDataLayout()->getTypeAllocSize(GlobalType);
- size_t A = getDataLayout()->getPreferredAlignment(GV);
- if (GV->isThreadLocal()) {
- MutexGuard locked(lock);
- Ptr = TJI.allocateThreadLocalMemory(S);
- } else if (TJI.allocateSeparateGVMemory()) {
- if (A <= 8) {
- Ptr = (char*)malloc(S);
- } else {
- // Allocate S+A bytes of memory, then use an aligned pointer within that
- // space.
- Ptr = (char*)malloc(S+A);
- unsigned MisAligned = ((intptr_t)Ptr & (A-1));
- Ptr = Ptr + (MisAligned ? (A-MisAligned) : 0);
- }
- } else if (AllocateGVsWithCode) {
- Ptr = (char*)JCE->allocateSpace(S, A);
- } else {
- Ptr = (char*)JCE->allocateGlobal(S, A);
- }
- return Ptr;
- }
- void JIT::addPendingFunction(Function *F) {
- MutexGuard locked(lock);
- jitstate->getPendingFunctions(locked).push_back(F);
- }
- JITEventListener::~JITEventListener() {}