#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/MDBuilder.h"
+#include "llvm/IR/Metadata.h"
#include "llvm/IR/Module.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/RWMutex.h"
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
//===----------------------------------------------------------------------===//
bool Function::isMaterializable() const {
- return getGlobalObjectSubClassData();
+ return getGlobalObjectSubClassData() & IsMaterializableBit;
}
-void Function::setIsMaterializable(bool V) { setGlobalObjectSubClassData(V); }
+void Function::setIsMaterializable(bool V) {
+ setGlobalObjectBit(IsMaterializableBit, V);
+}
LLVMContext &Function::getContext() const {
return getType()->getContext();
Function::Function(FunctionType *Ty, LinkageTypes Linkage, const Twine &name,
Module *ParentModule)
- : GlobalObject(PointerType::getUnqual(Ty), Value::FunctionVal, nullptr, 0,
- Linkage, name),
+ : GlobalObject(Ty, Value::FunctionVal,
+ OperandTraits<Function>::op_begin(this), 0, Linkage, name),
Ty(Ty) {
assert(FunctionType::isValidReturnType(getReturnType()) &&
"invalid return type");
- setIsMaterializable(false);
+ setGlobalObjectSubClassData(0);
SymTab = new ValueSymbolTable();
// If the function has arguments, mark them as lazily built.
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);
+ // FIXME: needed by operator delete
+ setFunctionNumOperands(1);
}
void Function::BuildLazyArguments() const {
// Prefix and prologue data are stored in a side table.
setPrefixData(nullptr);
setPrologueData(nullptr);
+
+ // Metadata is stored in a side-table.
+ clearMetadata();
+
+ setPersonalityFn(nullptr);
}
void Function::addAttribute(unsigned i, Attribute::AttrKind attr) {
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
setPrologueData(SrcF->getPrologueData());
else
setPrologueData(nullptr);
+ if (SrcF->hasPersonalityFn())
+ setPersonalityFn(SrcF->getPersonalityFn());
+ else
+ setPersonalityFn(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];
-}
-
-/// 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
Result += "a" + llvm::utostr(ATyp->getNumElements()) +
getMangledTypeStr(ATyp->getElementType());
} else if (StructType* STyp = dyn_cast<StructType>(Ty)) {
- if (!STyp->isLiteral())
- Result += STyp->getName();
- else
- llvm_unreachable("TODO: implement literal types");
+ 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++)
// 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_SAME_VEC_WIDTH_ARG = 30,
- IIT_PTR_TO_ARG = 31,
- IIT_VEC_OF_PTRS_TO_ELT = 32
+ 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
};
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);
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);
#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;
}
+static Constant *
+getFunctionData(const Function *F,
+ const LLVMContextImpl::FunctionDataMapTy &Map) {
+ const auto &Entry = Map.find(F);
+ assert(Entry != Map.end());
+ return cast<Constant>(Entry->second->getReturnValue());
+}
+
+/// setFunctionData - Set "Map[F] = Data". Return an updated SubclassData value
+/// in which Bit is low iff Data is null.
+static unsigned setFunctionData(Function *F,
+ LLVMContextImpl::FunctionDataMapTy &Map,
+ Constant *Data, unsigned SCData, unsigned Bit) {
+ ReturnInst *&Holder = Map[F];
+ if (Data) {
+ if (Holder)
+ Holder->setOperand(0, Data);
+ else
+ Holder = ReturnInst::Create(F->getContext(), Data);
+ return SCData | (1 << Bit);
+ } else {
+ delete Holder;
+ Map.erase(F);
+ return SCData & ~(1 << Bit);
+ }
+}
+
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());
+ return getFunctionData(this, getContext().pImpl->PrefixDataMap);
}
void Function::setPrefixData(Constant *PrefixData) {
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 |= (1<<1);
- } else {
- delete PDHolder;
- PDMap.erase(this);
- SCData &= ~(1<<1);
- }
+ SCData = setFunctionData(this, getContext().pImpl->PrefixDataMap, PrefixData,
+ SCData, /*Bit=*/1);
setValueSubclassData(SCData);
}
Constant *Function::getPrologueData() const {
assert(hasPrologueData());
- const LLVMContextImpl::PrologueDataMapTy &SOMap =
- getContext().pImpl->PrologueDataMap;
- assert(SOMap.find(this) != SOMap.end());
- return cast<Constant>(SOMap.find(this)->second->getReturnValue());
+ return getFunctionData(this, getContext().pImpl->PrologueDataMap);
}
void Function::setPrologueData(Constant *PrologueData) {
if (!PrologueData && !hasPrologueData())
return;
- unsigned PDData = getSubclassDataFromValue();
- LLVMContextImpl::PrologueDataMapTy &PDMap = getContext().pImpl->PrologueDataMap;
- ReturnInst *&PDHolder = PDMap[this];
- if (PrologueData) {
- if (PDHolder)
- PDHolder->setOperand(0, PrologueData);
- else
- PDHolder = ReturnInst::Create(getContext(), PrologueData);
- PDData |= (1<<2);
+ unsigned SCData = getSubclassDataFromValue();
+ SCData = setFunctionData(this, getContext().pImpl->PrologueDataMap,
+ PrologueData, SCData, /*Bit=*/2);
+ setValueSubclassData(SCData);
+}
+
+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;
+}
+
+void Function::setPersonalityFn(Constant *C) {
+ if (!C) {
+ if (hasPersonalityFn()) {
+ // Note, the num operands is used to compute the offset of the operand, so
+ // the order here matters. Clearing the operand then clearing the num
+ // operands ensures we have the correct offset to the operand.
+ Op<0>().set(nullptr);
+ setFunctionNumOperands(0);
+ }
} else {
- delete PDHolder;
- PDMap.erase(this);
- PDData &= ~(1<<2);
+ // Note, the num operands is used to compute the offset of the operand, so
+ // the order here matters. We need to set num operands to 1 first so that
+ // we get the correct offset to the first operand when we set it.
+ if (!hasPersonalityFn())
+ setFunctionNumOperands(1);
+ Op<0>().set(C);
}
- setValueSubclassData(PDData);
}
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