#include "llvm/Module.h"
#include "llvm/DerivedTypes.h"
#include "llvm/IntrinsicInst.h"
+#include "llvm/LLVMContext.h"
#include "llvm/CodeGen/ValueTypes.h"
#include "llvm/Support/LeakDetector.h"
+#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/StringPool.h"
+#include "llvm/System/RWMutex.h"
+#include "llvm/System/Threading.h"
#include "SymbolTableListTraitsImpl.h"
-#include "llvm/ADT/BitVector.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/StringExtras.h"
using namespace llvm;
-BasicBlock *ilist_traits<BasicBlock>::createSentinel() {
- BasicBlock *Ret = new BasicBlock();
- // This should not be garbage monitored.
- LeakDetector::removeGarbageObject(Ret);
- return Ret;
-}
-
-iplist<BasicBlock> &ilist_traits<BasicBlock>::getList(Function *F) {
- return F->getBasicBlockList();
-}
-
-Argument *ilist_traits<Argument>::createSentinel() {
- Argument *Ret = new Argument(Type::Int32Ty);
- // This should not be garbage monitored.
- LeakDetector::removeGarbageObject(Ret);
- return Ret;
-}
-
-iplist<Argument> &ilist_traits<Argument>::getList(Function *F) {
- return F->getArgumentList();
-}
// Explicit instantiations of SymbolTableListTraits since some of the methods
// are not in the public header file...
/// in its containing function.
bool Argument::hasByValAttr() const {
if (!isa<PointerType>(getType())) return false;
- return getParent()->paramHasAttr(getArgNo()+1, ParamAttr::ByVal);
+ return getParent()->paramHasAttr(getArgNo()+1, Attribute::ByVal);
}
/// hasNoAliasAttr - Return true if this argument has the noalias attribute on
/// it in its containing function.
bool Argument::hasNoAliasAttr() const {
if (!isa<PointerType>(getType())) return false;
- return getParent()->paramHasAttr(getArgNo()+1, ParamAttr::NoAlias);
+ return getParent()->paramHasAttr(getArgNo()+1, Attribute::NoAlias);
+}
+
+/// hasNoCaptureAttr - Return true if this argument has the nocapture attribute
+/// on it in its containing function.
+bool Argument::hasNoCaptureAttr() const {
+ if (!isa<PointerType>(getType())) return false;
+ return getParent()->paramHasAttr(getArgNo()+1, Attribute::NoCapture);
}
/// hasSRetAttr - Return true if this argument has the sret attribute on
/// it in its containing function.
bool Argument::hasStructRetAttr() const {
if (!isa<PointerType>(getType())) return false;
- if (this != getParent()->arg_begin()) return false; // StructRet param must be first param
- return getParent()->paramHasAttr(1, ParamAttr::StructRet);
+ if (this != getParent()->arg_begin())
+ return false; // StructRet param must be first param
+ return getParent()->paramHasAttr(1, Attribute::StructRet);
}
+/// addAttr - Add a Attribute to an argument
+void Argument::addAttr(Attributes attr) {
+ getParent()->addAttribute(getArgNo() + 1, attr);
+}
+/// removeAttr - Remove a Attribute from an argument
+void Argument::removeAttr(Attributes attr) {
+ getParent()->removeAttribute(getArgNo() + 1, attr);
+}
//===----------------------------------------------------------------------===//
// Helper Methods in Function
//===----------------------------------------------------------------------===//
+LLVMContext *Function::getContext() const {
+ const Module* M = getParent();
+ if (M) return &M->getContext();
+ return 0;
+}
+
const FunctionType *Function::getFunctionType() const {
return cast<FunctionType>(getType()->getElementType());
}
const std::string &name, Module *ParentModule)
: GlobalValue(PointerType::getUnqual(Ty),
Value::FunctionVal, 0, 0, Linkage, name) {
+ assert(FunctionType::isValidReturnType(getReturnType()) &&
+ !isa<OpaqueType>(getReturnType()) && "invalid return type");
SymTab = new ValueSymbolTable();
- assert((getReturnType()->isFirstClassType() ||getReturnType() == Type::VoidTy
- || isa<StructType>(getReturnType()))
- && "LLVM functions cannot return aggregate values!");
-
// If the function has arguments, mark them as lazily built.
if (Ty->getNumParams())
SubclassData = 1; // Set the "has lazy arguments" bit.
if (ParentModule)
ParentModule->getFunctionList().push_back(this);
+
+ // Ensure intrinsics have the right parameter attributes.
+ if (unsigned IID = getIntrinsicID())
+ setAttributes(Intrinsic::getAttributes(Intrinsic::ID(IID)));
+
}
Function::~Function() {
ArgumentList.clear();
delete SymTab;
- // Remove the function from the on-the-side collector table.
- clearCollector();
+ // Remove the function from the on-the-side GC table.
+ clearGC();
}
void Function::BuildLazyArguments() const {
BasicBlocks.clear(); // Delete all basic blocks...
}
-// Maintain the collector name for each function in an on-the-side table. This
-// saves allocating an additional word in Function for programs which do not use
-// GC (i.e., most programs) at the cost of increased overhead for clients which
-// do use GC.
-static DenseMap<const Function*,PooledStringPtr> *CollectorNames;
-static StringPool *CollectorNamePool;
+void Function::addAttribute(unsigned i, Attributes attr) {
+ AttrListPtr PAL = getAttributes();
+ PAL = PAL.addAttr(i, attr);
+ setAttributes(PAL);
+}
-bool Function::hasCollector() const {
- return CollectorNames && CollectorNames->count(this);
+void Function::removeAttribute(unsigned i, Attributes attr) {
+ AttrListPtr PAL = getAttributes();
+ PAL = PAL.removeAttr(i, attr);
+ setAttributes(PAL);
}
-const char *Function::getCollector() const {
- assert(hasCollector() && "Function has no collector");
- return *(*CollectorNames)[this];
+// Maintain the GC name for each function in an on-the-side table. This saves
+// allocating an additional word in Function for programs which do not use GC
+// (i.e., most programs) at the cost of increased overhead for clients which do
+// use GC.
+static DenseMap<const Function*,PooledStringPtr> *GCNames;
+static StringPool *GCNamePool;
+static ManagedStatic<sys::SmartRWMutex<true> > GCLock;
+
+bool Function::hasGC() const {
+ sys::SmartScopedReader<true> Reader(*GCLock);
+ return GCNames && GCNames->count(this);
+}
+
+const char *Function::getGC() const {
+ assert(hasGC() && "Function has no collector");
+ sys::SmartScopedReader<true> Reader(*GCLock);
+ return *(*GCNames)[this];
}
-void Function::setCollector(const char *Str) {
- if (!CollectorNamePool)
- CollectorNamePool = new StringPool();
- if (!CollectorNames)
- CollectorNames = new DenseMap<const Function*,PooledStringPtr>();
- (*CollectorNames)[this] = CollectorNamePool->intern(Str);
+void Function::setGC(const char *Str) {
+ sys::SmartScopedWriter<true> Writer(*GCLock);
+ if (!GCNamePool)
+ GCNamePool = new StringPool();
+ if (!GCNames)
+ GCNames = new DenseMap<const Function*,PooledStringPtr>();
+ (*GCNames)[this] = GCNamePool->intern(Str);
}
-void Function::clearCollector() {
- if (CollectorNames) {
- CollectorNames->erase(this);
- if (CollectorNames->empty()) {
- delete CollectorNames;
- CollectorNames = 0;
- if (CollectorNamePool->empty()) {
- delete CollectorNamePool;
- CollectorNamePool = 0;
+void Function::clearGC() {
+ sys::SmartScopedWriter<true> Writer(*GCLock);
+ if (GCNames) {
+ GCNames->erase(this);
+ if (GCNames->empty()) {
+ delete GCNames;
+ GCNames = 0;
+ if (GCNamePool->empty()) {
+ delete GCNamePool;
+ GCNamePool = 0;
}
}
}
}
+/// copyAttributesFrom - copy all additional attributes (those not needed to
+/// create a Function) from the Function Src to this one.
+void Function::copyAttributesFrom(const GlobalValue *Src) {
+ assert(isa<Function>(Src) && "Expected a Function!");
+ GlobalValue::copyAttributesFrom(Src);
+ const Function *SrcF = cast<Function>(Src);
+ setCallingConv(SrcF->getCallingConv());
+ setAttributes(SrcF->getAttributes());
+ if (SrcF->hasGC())
+ setGC(SrcF->getGC());
+ else
+ clearGC();
+}
+
/// getIntrinsicID - This method returns the ID number of the specified
/// function, or Intrinsic::not_intrinsic if the function is not an
/// intrinsic, or if the pointer is null. This value is always defined to be
/// particular intrinsic functions which correspond to this value are defined in
/// llvm/Intrinsics.h.
///
-unsigned Function::getIntrinsicID(bool noAssert) const {
+unsigned Function::getIntrinsicID() const {
const ValueName *ValName = this->getValueName();
if (!ValName)
return 0;
|| Name[2] != 'v' || Name[3] != 'm')
return 0; // All intrinsics start with 'llvm.'
- assert((Len != 5 || noAssert) && "'llvm.' is an invalid intrinsic name!");
-
#define GET_FUNCTION_RECOGNIZER
#include "llvm/Intrinsics.gen"
#undef GET_FUNCTION_RECOGNIZER
- assert(noAssert && "Invalid LLVM intrinsic name");
return 0;
}
if (numTys == 0)
return Table[id];
std::string Result(Table[id]);
- for (unsigned i = 0; i < numTys; ++i)
- if (Tys[i])
- Result += "." + MVT::getValueTypeString(MVT::getValueType(Tys[i]));
+ for (unsigned i = 0; i < numTys; ++i) {
+ if (const PointerType* PTyp = dyn_cast<PointerType>(Tys[i])) {
+ Result += ".p" + llvm::utostr(PTyp->getAddressSpace()) +
+ MVT::getMVT(PTyp->getElementType()).getMVTString();
+ }
+ else if (Tys[i])
+ Result += "." + MVT::getMVT(Tys[i]).getMVTString();
+ }
return Result;
}
-const FunctionType *Intrinsic::getType(ID id, const Type **Tys,
+const FunctionType *Intrinsic::getType(LLVMContext &Context,
+ ID id, const Type **Tys,
unsigned numTys) {
const Type *ResultTy = NULL;
std::vector<const Type*> ArgTys;
#include "llvm/Intrinsics.gen"
#undef GET_INTRINSIC_GENERATOR
- return FunctionType::get(ResultTy, ArgTys, IsVarArg);
+ return Context.getFunctionType(ResultTy, ArgTys, IsVarArg);
}
-PAListPtr Intrinsic::getParamAttrs(ID id) {
- ParameterAttributes Attr = ParamAttr::None;
+bool Intrinsic::isOverloaded(ID id) {
+ const bool OTable[] = {
+ false,
+#define GET_INTRINSIC_OVERLOAD_TABLE
+#include "llvm/Intrinsics.gen"
+#undef GET_INTRINSIC_OVERLOAD_TABLE
+ };
+ return OTable[id];
+}
+/// This defines the "Intrinsic::getAttributes(ID id)" method.
#define GET_INTRINSIC_ATTRIBUTES
#include "llvm/Intrinsics.gen"
#undef GET_INTRINSIC_ATTRIBUTES
- // Intrinsics cannot throw exceptions.
- Attr |= ParamAttr::NoUnwind;
-
- ParamAttrsWithIndex PAWI = ParamAttrsWithIndex::get(0, Attr);
- return PAListPtr::get(&PAWI, 1);
-}
-
Function *Intrinsic::getDeclaration(Module *M, ID id, const Type **Tys,
unsigned numTys) {
// There can never be multiple globals with the same name of different types,
// because intrinsics must be a specific type.
- Function *F =
+ return
cast<Function>(M->getOrInsertFunction(getName(id, Tys, numTys),
- getType(id, Tys, numTys)));
- F->setParamAttrs(getParamAttrs(id));
- return F;
-}
-
-Value *IntrinsicInst::StripPointerCasts(Value *Ptr) {
- if (ConstantExpr *CE = dyn_cast<ConstantExpr>(Ptr)) {
- if (CE->getOpcode() == Instruction::BitCast) {
- if (isa<PointerType>(CE->getOperand(0)->getType()))
- return StripPointerCasts(CE->getOperand(0));
- } else if (CE->getOpcode() == Instruction::GetElementPtr) {
- for (unsigned i = 1, e = CE->getNumOperands(); i != e; ++i)
- if (!CE->getOperand(i)->isNullValue())
- return Ptr;
- return StripPointerCasts(CE->getOperand(0));
- }
- return Ptr;
- }
+ getType(M->getContext(),
+ id, Tys, numTys)));
+}
- if (BitCastInst *CI = dyn_cast<BitCastInst>(Ptr)) {
- if (isa<PointerType>(CI->getOperand(0)->getType()))
- return StripPointerCasts(CI->getOperand(0));
- } else if (GetElementPtrInst *GEP = dyn_cast<GetElementPtrInst>(Ptr)) {
- if (GEP->hasAllZeroIndices())
- return StripPointerCasts(GEP->getOperand(0));
+// This defines the "Intrinsic::getIntrinsicForGCCBuiltin()" method.
+#define GET_LLVM_INTRINSIC_FOR_GCC_BUILTIN
+#include "llvm/Intrinsics.gen"
+#undef GET_LLVM_INTRINSIC_FOR_GCC_BUILTIN
+
+ /// hasAddressTaken - returns true if there are any uses of this function
+ /// other than direct calls or invokes to it.
+bool Function::hasAddressTaken() const {
+ for (Value::use_const_iterator I = use_begin(), E = use_end(); I != E; ++I) {
+ if (I.getOperandNo() != 0 ||
+ (!isa<CallInst>(*I) && !isa<InvokeInst>(*I)))
+ return true;
}
- return Ptr;
+ return false;
}
// vim: sw=2 ai
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