#include "llvm/ADT/StringExtras.h"
#include "llvm/CodeGen/ValueTypes.h"
#include "llvm/IR/CallSite.h"
+#include "llvm/IR/Constants.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/InstIterator.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/LLVMContext.h"
-#include "llvm/IR/LeakDetector.h"
+#include "llvm/IR/MDBuilder.h"
+#include "llvm/IR/Metadata.h"
#include "llvm/IR/Module.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/RWMutex.h"
// Explicit instantiations of SymbolTableListTraits since some of the methods
// are not in the public header file...
-template class llvm::SymbolTableListTraits<Argument, Function>;
-template class llvm::SymbolTableListTraits<BasicBlock, Function>;
+template class llvm::SymbolTableListTraits<Argument>;
+template class llvm::SymbolTableListTraits<BasicBlock>;
//===----------------------------------------------------------------------===//
// Argument Implementation
: Value(Ty, Value::ArgumentVal) {
Parent = nullptr;
- // Make sure that we get added to a function
- LeakDetector::addGarbageObject(this);
-
if (Par)
Par->getArgumentList().push_back(this);
setName(Name);
}
void Argument::setParent(Function *parent) {
- if (getParent())
- LeakDetector::addGarbageObject(this);
Parent = parent;
- if (getParent())
- LeakDetector::removeGarbageObject(this);
}
/// getArgNo - Return the index of this formal argument in its containing
return getParent()->getDereferenceableBytes(getArgNo()+1);
}
+uint64_t Argument::getDereferenceableOrNullBytes() const {
+ assert(getType()->isPointerTy() &&
+ "Only pointers have dereferenceable bytes");
+ return getParent()->getDereferenceableOrNullBytes(getArgNo()+1);
+}
+
/// hasNestAttr - Return true if this argument has the nest attribute on
/// it in its containing function.
bool Argument::hasNestAttr() const {
/// it in its containing function.
bool Argument::hasStructRetAttr() const {
if (!getType()->isPointerTy()) return false;
- if (this != getParent()->arg_begin())
- return false; // StructRet param must be first param
return getParent()->getAttributes().
- hasAttribute(1, Attribute::StructRet);
+ hasAttribute(getArgNo()+1, Attribute::StructRet);
}
/// hasReturnedAttr - Return true if this argument has the returned attribute on
// Helper Methods in Function
//===----------------------------------------------------------------------===//
+bool Function::isMaterializable() const {
+ return getGlobalObjectSubClassData() & IsMaterializableBit;
+}
+
+void Function::setIsMaterializable(bool V) {
+ setGlobalObjectBit(IsMaterializableBit, V);
+}
+
LLVMContext &Function::getContext() const {
return getType()->getContext();
}
-FunctionType *Function::getFunctionType() const {
- return cast<FunctionType>(getType()->getElementType());
-}
+FunctionType *Function::getFunctionType() const { return Ty; }
bool Function::isVarArg() const {
return getFunctionType()->isVarArg();
}
void Function::removeFromParent() {
- getParent()->getFunctionList().remove(this);
+ getParent()->getFunctionList().remove(getIterator());
}
void Function::eraseFromParent() {
- getParent()->getFunctionList().erase(this);
+ getParent()->getFunctionList().erase(getIterator());
}
//===----------------------------------------------------------------------===//
// Function Implementation
//===----------------------------------------------------------------------===//
-Function::Function(FunctionType *Ty, LinkageTypes Linkage,
- const Twine &name, Module *ParentModule)
- : GlobalObject(PointerType::getUnqual(Ty),
- Value::FunctionVal, nullptr, 0, Linkage, name) {
+Function::Function(FunctionType *Ty, LinkageTypes Linkage, const Twine &name,
+ Module *ParentModule)
+ : GlobalObject(Ty, Value::FunctionVal,
+ OperandTraits<Function>::op_begin(this), 0, Linkage, name),
+ Ty(Ty) {
assert(FunctionType::isValidReturnType(getReturnType()) &&
"invalid return type");
+ setGlobalObjectSubClassData(0);
SymTab = new ValueSymbolTable();
// If the function has arguments, mark them as lazily built.
if (Ty->getNumParams())
setValueSubclassData(1); // Set the "has lazy arguments" bit.
- // Make sure that we get added to a function
- LeakDetector::addGarbageObject(this);
-
if (ParentModule)
ParentModule->getFunctionList().push_back(this);
// Ensure intrinsics have the right parameter attributes.
- if (unsigned IID = getIntrinsicID())
- setAttributes(Intrinsic::getAttributes(getContext(), Intrinsic::ID(IID)));
-
+ // Note, the IntID field will have been set in Value::setName if this function
+ // name is a valid intrinsic ID.
+ if (IntID)
+ setAttributes(Intrinsic::getAttributes(getContext(), IntID));
}
Function::~Function() {
// Remove the function from the on-the-side GC table.
clearGC();
-
- // Remove the intrinsicID from the Cache.
- if (getValueName() && isIntrinsic())
- getContext().pImpl->IntrinsicIDCache.erase(this);
}
void Function::BuildLazyArguments() const {
// Clear the lazy arguments bit.
unsigned SDC = getSubclassDataFromValue();
- const_cast<Function*>(this)->setValueSubclassData(SDC &= ~1);
+ const_cast<Function*>(this)->setValueSubclassData(SDC &= ~(1<<0));
}
size_t Function::arg_size() const {
}
void Function::setParent(Module *parent) {
- if (getParent())
- LeakDetector::addGarbageObject(this);
Parent = parent;
- if (getParent())
- LeakDetector::removeGarbageObject(this);
}
// dropAllReferences() - This function causes all the subinstructions to "let
// delete.
//
void Function::dropAllReferences() {
+ setIsMaterializable(false);
+
for (iterator I = begin(), E = end(); I != E; ++I)
I->dropAllReferences();
while (!BasicBlocks.empty())
BasicBlocks.begin()->eraseFromParent();
- // Prefix data is stored in a side table.
- setPrefixData(nullptr);
+ // Drop uses of any optional data (real or placeholder).
+ if (getNumOperands()) {
+ User::dropAllReferences();
+ setNumHungOffUseOperands(0);
+ setValueSubclassData(getSubclassDataFromValue() & ~0xe);
+ }
+
+ // Metadata is stored in a side-table.
+ clearMetadata();
}
void Function::addAttribute(unsigned i, Attribute::AttrKind attr) {
setAttributes(PAL);
}
+void Function::addDereferenceableAttr(unsigned i, uint64_t Bytes) {
+ AttributeSet PAL = getAttributes();
+ PAL = PAL.addDereferenceableAttr(getContext(), i, Bytes);
+ setAttributes(PAL);
+}
+
+void Function::addDereferenceableOrNullAttr(unsigned i, uint64_t Bytes) {
+ AttributeSet PAL = getAttributes();
+ PAL = PAL.addDereferenceableOrNullAttr(getContext(), i, Bytes);
+ setAttributes(PAL);
+}
+
// 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
}
}
-/// copyAttributesFrom - copy all additional attributes (those not needed to
-/// create a Function) from the Function Src to this one.
+/// 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!");
GlobalObject::copyAttributesFrom(Src);
- const Function *SrcF = cast<Function>(Src);
+ const Function *SrcF = dyn_cast<Function>(Src);
+ if (!SrcF)
+ return;
+
setCallingConv(SrcF->getCallingConv());
setAttributes(SrcF->getAttributes());
if (SrcF->hasGC())
setGC(SrcF->getGC());
else
clearGC();
+ if (SrcF->hasPersonalityFn())
+ setPersonalityFn(SrcF->getPersonalityFn());
if (SrcF->hasPrefixData())
setPrefixData(SrcF->getPrefixData());
- else
- setPrefixData(nullptr);
-}
-
-/// 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
-/// zero to allow easy checking for whether a function is intrinsic or not. The
-/// particular intrinsic functions which correspond to this value are defined in
-/// llvm/Intrinsics.h. Results are cached in the LLVM context, subsequent
-/// requests for the same ID return results much faster from the cache.
-///
-unsigned Function::getIntrinsicID() const {
- const ValueName *ValName = this->getValueName();
- if (!ValName || !isIntrinsic())
- return 0;
-
- LLVMContextImpl::IntrinsicIDCacheTy &IntrinsicIDCache =
- getContext().pImpl->IntrinsicIDCache;
- if (!IntrinsicIDCache.count(this)) {
- unsigned Id = lookupIntrinsicID();
- IntrinsicIDCache[this]=Id;
- return Id;
- }
- return IntrinsicIDCache[this];
+ if (SrcF->hasPrologueData())
+ setPrologueData(SrcF->getPrologueData());
}
-/// This private method does the actual lookup of an intrinsic ID when the query
-/// could not be answered from the cache.
-unsigned Function::lookupIntrinsicID() const {
- const ValueName *ValName = this->getValueName();
+/// \brief This does the actual lookup of an intrinsic ID which
+/// matches the given function name.
+static Intrinsic::ID lookupIntrinsicID(const ValueName *ValName) {
unsigned Len = ValName->getKeyLength();
const char *Name = ValName->getKeyData();
#include "llvm/IR/Intrinsics.gen"
#undef GET_FUNCTION_RECOGNIZER
- return 0;
+ return Intrinsic::not_intrinsic;
+}
+
+void Function::recalculateIntrinsicID() {
+ const ValueName *ValName = this->getValueName();
+ if (!ValName || !isIntrinsic()) {
+ IntID = Intrinsic::not_intrinsic;
+ return;
+ }
+ IntID = lookupIntrinsicID(ValName);
+}
+
+/// Returns a stable mangling for the type specified for use in the name
+/// mangling scheme used by 'any' types in intrinsic signatures. The mangling
+/// of named types is simply their name. Manglings for unnamed types consist
+/// of a prefix ('p' for pointers, 'a' for arrays, 'f_' for functions)
+/// combined with the mangling of their component types. A vararg function
+/// type will have a suffix of 'vararg'. Since function types can contain
+/// other function types, we close a function type mangling with suffix 'f'
+/// which can't be confused with it's prefix. This ensures we don't have
+/// collisions between two unrelated function types. Otherwise, you might
+/// parse ffXX as f(fXX) or f(fX)X. (X is a placeholder for any other type.)
+/// Manglings of integers, floats, and vectors ('i', 'f', and 'v' prefix in most
+/// cases) fall back to the MVT codepath, where they could be mangled to
+/// 'x86mmx', for example; matching on derived types is not sufficient to mangle
+/// everything.
+static std::string getMangledTypeStr(Type* Ty) {
+ std::string Result;
+ if (PointerType* PTyp = dyn_cast<PointerType>(Ty)) {
+ Result += "p" + llvm::utostr(PTyp->getAddressSpace()) +
+ getMangledTypeStr(PTyp->getElementType());
+ } else if (ArrayType* ATyp = dyn_cast<ArrayType>(Ty)) {
+ Result += "a" + llvm::utostr(ATyp->getNumElements()) +
+ getMangledTypeStr(ATyp->getElementType());
+ } else if (StructType* STyp = dyn_cast<StructType>(Ty)) {
+ assert(!STyp->isLiteral() && "TODO: implement literal types");
+ Result += STyp->getName();
+ } else if (FunctionType* FT = dyn_cast<FunctionType>(Ty)) {
+ Result += "f_" + getMangledTypeStr(FT->getReturnType());
+ for (size_t i = 0; i < FT->getNumParams(); i++)
+ Result += getMangledTypeStr(FT->getParamType(i));
+ if (FT->isVarArg())
+ Result += "vararg";
+ // Ensure nested function types are distinguishable.
+ Result += "f";
+ } else if (isa<VectorType>(Ty))
+ Result += "v" + utostr(Ty->getVectorNumElements()) +
+ getMangledTypeStr(Ty->getVectorElementType());
+ else if (Ty)
+ Result += EVT::getEVT(Ty).getEVTString();
+ return Result;
}
std::string Intrinsic::getName(ID id, ArrayRef<Type*> Tys) {
return Table[id];
std::string Result(Table[id]);
for (unsigned i = 0; i < Tys.size(); ++i) {
- if (PointerType* PTyp = dyn_cast<PointerType>(Tys[i])) {
- Result += ".p" + llvm::utostr(PTyp->getAddressSpace()) +
- EVT::getEVT(PTyp->getElementType()).getEVTString();
- }
- else if (Tys[i])
- Result += "." + EVT::getEVT(Tys[i]).getEVTString();
+ Result += "." + getMangledTypeStr(Tys[i]);
}
return Result;
}
///
/// NOTE: This must be kept in synch with the copy in TblGen/IntrinsicEmitter!
enum IIT_Info {
- // Common values should be encoded with 0-16.
+ // Common values should be encoded with 0-15.
IIT_Done = 0,
IIT_I1 = 1,
IIT_I8 = 2,
IIT_V8 = 11,
IIT_V16 = 12,
IIT_V32 = 13,
- IIT_V64 = 14,
- IIT_PTR = 15,
- IIT_ARG = 16,
+ IIT_PTR = 14,
+ IIT_ARG = 15,
- // Values from 17+ are only encodable with the inefficient encoding.
+ // Values from 16+ are only encodable with the inefficient encoding.
+ IIT_V64 = 16,
IIT_MMX = 17,
- IIT_METADATA = 18,
- IIT_EMPTYSTRUCT = 19,
- IIT_STRUCT2 = 20,
- IIT_STRUCT3 = 21,
- IIT_STRUCT4 = 22,
- IIT_STRUCT5 = 23,
- IIT_EXTEND_ARG = 24,
- IIT_TRUNC_ARG = 25,
- IIT_ANYPTR = 26,
- IIT_V1 = 27,
- IIT_VARARG = 28,
- IIT_HALF_VEC_ARG = 29
+ IIT_TOKEN = 18,
+ IIT_METADATA = 19,
+ IIT_EMPTYSTRUCT = 20,
+ IIT_STRUCT2 = 21,
+ IIT_STRUCT3 = 22,
+ IIT_STRUCT4 = 23,
+ IIT_STRUCT5 = 24,
+ IIT_EXTEND_ARG = 25,
+ IIT_TRUNC_ARG = 26,
+ IIT_ANYPTR = 27,
+ IIT_V1 = 28,
+ IIT_VARARG = 29,
+ IIT_HALF_VEC_ARG = 30,
+ IIT_SAME_VEC_WIDTH_ARG = 31,
+ IIT_PTR_TO_ARG = 32,
+ IIT_VEC_OF_PTRS_TO_ELT = 33,
+ IIT_I128 = 34,
+ IIT_V512 = 35,
+ IIT_V1024 = 36
};
case IIT_MMX:
OutputTable.push_back(IITDescriptor::get(IITDescriptor::MMX, 0));
return;
+ case IIT_TOKEN:
+ OutputTable.push_back(IITDescriptor::get(IITDescriptor::Token, 0));
+ return;
case IIT_METADATA:
OutputTable.push_back(IITDescriptor::get(IITDescriptor::Metadata, 0));
return;
case IIT_I64:
OutputTable.push_back(IITDescriptor::get(IITDescriptor::Integer, 64));
return;
+ case IIT_I128:
+ OutputTable.push_back(IITDescriptor::get(IITDescriptor::Integer, 128));
+ return;
case IIT_V1:
OutputTable.push_back(IITDescriptor::get(IITDescriptor::Vector, 1));
DecodeIITType(NextElt, Infos, OutputTable);
OutputTable.push_back(IITDescriptor::get(IITDescriptor::Vector, 64));
DecodeIITType(NextElt, Infos, OutputTable);
return;
+ case IIT_V512:
+ OutputTable.push_back(IITDescriptor::get(IITDescriptor::Vector, 512));
+ DecodeIITType(NextElt, Infos, OutputTable);
+ return;
+ case IIT_V1024:
+ OutputTable.push_back(IITDescriptor::get(IITDescriptor::Vector, 1024));
+ DecodeIITType(NextElt, Infos, OutputTable);
+ return;
case IIT_PTR:
OutputTable.push_back(IITDescriptor::get(IITDescriptor::Pointer, 0));
DecodeIITType(NextElt, Infos, OutputTable);
ArgInfo));
return;
}
+ case IIT_SAME_VEC_WIDTH_ARG: {
+ unsigned ArgInfo = (NextElt == Infos.size() ? 0 : Infos[NextElt++]);
+ OutputTable.push_back(IITDescriptor::get(IITDescriptor::SameVecWidthArgument,
+ ArgInfo));
+ return;
+ }
+ case IIT_PTR_TO_ARG: {
+ unsigned ArgInfo = (NextElt == Infos.size() ? 0 : Infos[NextElt++]);
+ OutputTable.push_back(IITDescriptor::get(IITDescriptor::PtrToArgument,
+ ArgInfo));
+ return;
+ }
+ case IIT_VEC_OF_PTRS_TO_ELT: {
+ unsigned ArgInfo = (NextElt == Infos.size() ? 0 : Infos[NextElt++]);
+ OutputTable.push_back(IITDescriptor::get(IITDescriptor::VecOfPtrsToElt,
+ ArgInfo));
+ return;
+ }
case IIT_EMPTYSTRUCT:
OutputTable.push_back(IITDescriptor::get(IITDescriptor::Struct, 0));
return;
case IITDescriptor::Void: return Type::getVoidTy(Context);
case IITDescriptor::VarArg: return Type::getVoidTy(Context);
case IITDescriptor::MMX: return Type::getX86_MMXTy(Context);
+ case IITDescriptor::Token: return Type::getTokenTy(Context);
case IITDescriptor::Metadata: return Type::getMetadataTy(Context);
case IITDescriptor::Half: return Type::getHalfTy(Context);
case IITDescriptor::Float: return Type::getFloatTy(Context);
case IITDescriptor::HalfVecArgument:
return VectorType::getHalfElementsVectorType(cast<VectorType>(
Tys[D.getArgumentNumber()]));
+ case IITDescriptor::SameVecWidthArgument: {
+ Type *EltTy = DecodeFixedType(Infos, Tys, Context);
+ Type *Ty = Tys[D.getArgumentNumber()];
+ if (VectorType *VTy = dyn_cast<VectorType>(Ty)) {
+ return VectorType::get(EltTy, VTy->getNumElements());
+ }
+ llvm_unreachable("unhandled");
+ }
+ case IITDescriptor::PtrToArgument: {
+ Type *Ty = Tys[D.getArgumentNumber()];
+ return PointerType::getUnqual(Ty);
}
+ case IITDescriptor::VecOfPtrsToElt: {
+ Type *Ty = Tys[D.getArgumentNumber()];
+ VectorType *VTy = dyn_cast<VectorType>(Ty);
+ if (!VTy)
+ llvm_unreachable("Expected an argument of Vector Type");
+ Type *EltTy = VTy->getVectorElementType();
+ return VectorType::get(PointerType::getUnqual(EltTy),
+ VTy->getNumElements());
+ }
+ }
llvm_unreachable("unhandled");
}
#undef GET_INTRINSIC_OVERLOAD_TABLE
}
+bool Intrinsic::isLeaf(ID id) {
+ switch (id) {
+ default:
+ return true;
+
+ case Intrinsic::experimental_gc_statepoint:
+ case Intrinsic::experimental_patchpoint_void:
+ case Intrinsic::experimental_patchpoint_i64:
+ return false;
+ }
+}
+
/// This defines the "Intrinsic::getAttributes(ID id)" method.
#define GET_INTRINSIC_ATTRIBUTES
#include "llvm/IR/Intrinsics.gen"
return false;
}
+Constant *Function::getPersonalityFn() const {
+ assert(hasPersonalityFn() && getNumOperands());
+ return cast<Constant>(Op<0>());
+}
+
+void Function::setPersonalityFn(Constant *Fn) {
+ setHungoffOperand<0>(Fn);
+ setValueSubclassDataBit(3, Fn != nullptr);
+}
+
Constant *Function::getPrefixData() const {
- assert(hasPrefixData());
- const LLVMContextImpl::PrefixDataMapTy &PDMap =
- getContext().pImpl->PrefixDataMap;
- assert(PDMap.find(this) != PDMap.end());
- return cast<Constant>(PDMap.find(this)->second->getReturnValue());
+ assert(hasPrefixData() && getNumOperands());
+ return cast<Constant>(Op<1>());
}
void Function::setPrefixData(Constant *PrefixData) {
- if (!PrefixData && !hasPrefixData())
- return;
-
- unsigned SCData = getSubclassDataFromValue();
- LLVMContextImpl::PrefixDataMapTy &PDMap = getContext().pImpl->PrefixDataMap;
- ReturnInst *&PDHolder = PDMap[this];
- if (PrefixData) {
- if (PDHolder)
- PDHolder->setOperand(0, PrefixData);
- else
- PDHolder = ReturnInst::Create(getContext(), PrefixData);
- SCData |= 2;
- } else {
- delete PDHolder;
- PDMap.erase(this);
- SCData &= ~2;
+ setHungoffOperand<1>(PrefixData);
+ setValueSubclassDataBit(1, PrefixData != nullptr);
+}
+
+Constant *Function::getPrologueData() const {
+ assert(hasPrologueData() && getNumOperands());
+ return cast<Constant>(Op<2>());
+}
+
+void Function::setPrologueData(Constant *PrologueData) {
+ setHungoffOperand<2>(PrologueData);
+ setValueSubclassDataBit(2, PrologueData != nullptr);
+}
+
+void Function::allocHungoffUselist() {
+ // If we've already allocated a uselist, stop here.
+ if (getNumOperands())
+ return;
+
+ allocHungoffUses(3, /*IsPhi=*/ false);
+ setNumHungOffUseOperands(3);
+
+ // Initialize the uselist with placeholder operands to allow traversal.
+ auto *CPN = ConstantPointerNull::get(Type::getInt1PtrTy(getContext(), 0));
+ Op<0>().set(CPN);
+ Op<1>().set(CPN);
+ Op<2>().set(CPN);
+}
+
+template <int Idx>
+void Function::setHungoffOperand(Constant *C) {
+ if (C) {
+ allocHungoffUselist();
+ Op<Idx>().set(C);
+ } else if (getNumOperands()) {
+ Op<Idx>().set(
+ ConstantPointerNull::get(Type::getInt1PtrTy(getContext(), 0)));
}
- setValueSubclassData(SCData);
+}
+
+void Function::setValueSubclassDataBit(unsigned Bit, bool On) {
+ assert(Bit < 16 && "SubclassData contains only 16 bits");
+ if (On)
+ setValueSubclassData(getSubclassDataFromValue() | (1 << Bit));
+ else
+ setValueSubclassData(getSubclassDataFromValue() & ~(1 << Bit));
+}
+
+void Function::setEntryCount(uint64_t Count) {
+ MDBuilder MDB(getContext());
+ setMetadata(LLVMContext::MD_prof, MDB.createFunctionEntryCount(Count));
+}
+
+Optional<uint64_t> Function::getEntryCount() const {
+ MDNode *MD = getMetadata(LLVMContext::MD_prof);
+ if (MD && MD->getOperand(0))
+ if (MDString *MDS = dyn_cast<MDString>(MD->getOperand(0)))
+ if (MDS->getString().equals("function_entry_count")) {
+ ConstantInt *CI = mdconst::extract<ConstantInt>(MD->getOperand(1));
+ return CI->getValue().getZExtValue();
+ }
+ return None;
}
projects / oota-llvm.git / blobdiff