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-rw-r--r--contrib/llvm/lib/IR/Function.cpp96
1 files changed, 71 insertions, 25 deletions
diff --git a/contrib/llvm/lib/IR/Function.cpp b/contrib/llvm/lib/IR/Function.cpp
index e1223d0..05419aa 100644
--- a/contrib/llvm/lib/IR/Function.cpp
+++ b/contrib/llvm/lib/IR/Function.cpp
@@ -26,10 +26,6 @@
#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"
-#include "llvm/Support/StringPool.h"
-#include "llvm/Support/Threading.h"
using namespace llvm;
// Explicit instantiations of SymbolTableListTraits since some of the methods
@@ -262,7 +258,10 @@ Function::Function(FunctionType *Ty, LinkageTypes Linkage, const Twine &name,
assert(FunctionType::isValidReturnType(getReturnType()) &&
"invalid return type");
setGlobalObjectSubClassData(0);
- SymTab = new ValueSymbolTable();
+
+ // We only need a symbol table for a function if the context keeps value names
+ if (!getContext().shouldDiscardValueNames())
+ SymTab = make_unique<ValueSymbolTable>();
// If the function has arguments, mark them as lazily built.
if (Ty->getNumParams())
@@ -271,6 +270,7 @@ Function::Function(FunctionType *Ty, LinkageTypes Linkage, const Twine &name,
if (ParentModule)
ParentModule->getFunctionList().push_back(this);
+ HasLLVMReservedName = getName().startswith("llvm.");
// Ensure intrinsics have the right parameter attributes.
// Note, the IntID field will have been set in Value::setName if this function
// name is a valid intrinsic ID.
@@ -283,7 +283,6 @@ Function::~Function() {
// Delete all of the method arguments and unlink from symbol table...
ArgumentList.clear();
- delete SymTab;
// Remove the function from the on-the-side GC table.
clearGC();
@@ -332,10 +331,6 @@ bool Function::arg_empty() const {
return getFunctionType()->getNumParams() == 0;
}
-void Function::setParent(Module *parent) {
- Parent = parent;
-}
-
// dropAllReferences() - This function causes all the subinstructions to "let
// go" of all references that they are maintaining. This allows one to
// 'delete' a whole class at a time, even though there may be circular
@@ -488,9 +483,7 @@ static ArrayRef<const char *> findTargetSubtable(StringRef Name) {
/// \brief This does the actual lookup of an intrinsic ID which
/// matches the given function name.
-static Intrinsic::ID lookupIntrinsicID(const ValueName *ValName) {
- StringRef Name = ValName->getKey();
-
+Intrinsic::ID Function::lookupIntrinsicID(StringRef Name) {
ArrayRef<const char *> NameTable = findTargetSubtable(Name);
int Idx = Intrinsic::lookupLLVMIntrinsicByName(NameTable, Name);
if (Idx == -1)
@@ -508,12 +501,14 @@ static Intrinsic::ID lookupIntrinsicID(const ValueName *ValName) {
}
void Function::recalculateIntrinsicID() {
- const ValueName *ValName = this->getValueName();
- if (!ValName || !isIntrinsic()) {
+ StringRef Name = getName();
+ if (!Name.startswith("llvm.")) {
+ HasLLVMReservedName = false;
IntID = Intrinsic::not_intrinsic;
return;
}
- IntID = lookupIntrinsicID(ValName);
+ HasLLVMReservedName = true;
+ IntID = lookupIntrinsicID(Name);
}
/// Returns a stable mangling for the type specified for use in the name
@@ -557,6 +552,13 @@ static std::string getMangledTypeStr(Type* Ty) {
return Result;
}
+StringRef Intrinsic::getName(ID id) {
+ assert(id < num_intrinsics && "Invalid intrinsic ID!");
+ assert(!isOverloaded(id) &&
+ "This version of getName does not support overloading");
+ return IntrinsicNameTable[id];
+}
+
std::string Intrinsic::getName(ID id, ArrayRef<Type*> Tys) {
assert(id < num_intrinsics && "Invalid intrinsic ID!");
std::string Result(IntrinsicNameTable[id]);
@@ -608,10 +610,11 @@ enum IIT_Info {
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
+ IIT_PTR_TO_ELT = 33,
+ IIT_VEC_OF_PTRS_TO_ELT = 34,
+ IIT_I128 = 35,
+ IIT_V512 = 36,
+ IIT_V1024 = 37
};
@@ -745,6 +748,11 @@ static void DecodeIITType(unsigned &NextElt, ArrayRef<unsigned char> Infos,
ArgInfo));
return;
}
+ case IIT_PTR_TO_ELT: {
+ unsigned ArgInfo = (NextElt == Infos.size() ? 0 : Infos[NextElt++]);
+ OutputTable.push_back(IITDescriptor::get(IITDescriptor::PtrToElt, ArgInfo));
+ return;
+ }
case IIT_VEC_OF_PTRS_TO_ELT: {
unsigned ArgInfo = (NextElt == Infos.size() ? 0 : Infos[NextElt++]);
OutputTable.push_back(IITDescriptor::get(IITDescriptor::VecOfPtrsToElt,
@@ -754,9 +762,9 @@ static void DecodeIITType(unsigned &NextElt, ArrayRef<unsigned char> Infos,
case IIT_EMPTYSTRUCT:
OutputTable.push_back(IITDescriptor::get(IITDescriptor::Struct, 0));
return;
- case IIT_STRUCT5: ++StructElts; // FALL THROUGH.
- case IIT_STRUCT4: ++StructElts; // FALL THROUGH.
- case IIT_STRUCT3: ++StructElts; // FALL THROUGH.
+ case IIT_STRUCT5: ++StructElts; LLVM_FALLTHROUGH;
+ case IIT_STRUCT4: ++StructElts; LLVM_FALLTHROUGH;
+ case IIT_STRUCT3: ++StructElts; LLVM_FALLTHROUGH;
case IIT_STRUCT2: {
OutputTable.push_back(IITDescriptor::get(IITDescriptor::Struct,StructElts));
@@ -871,6 +879,14 @@ static Type *DecodeFixedType(ArrayRef<Intrinsic::IITDescriptor> &Infos,
Type *Ty = Tys[D.getArgumentNumber()];
return PointerType::getUnqual(Ty);
}
+ case IITDescriptor::PtrToElt: {
+ 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 PointerType::getUnqual(EltTy);
+ }
case IITDescriptor::VecOfPtrsToElt: {
Type *Ty = Tys[D.getArgumentNumber()];
VectorType *VTy = dyn_cast<VectorType>(Ty);
@@ -1049,7 +1065,7 @@ bool Intrinsic::matchIntrinsicType(Type *Ty, ArrayRef<Intrinsic::IITDescriptor>
if (D.getArgumentNumber() >= ArgTys.size())
return true;
VectorType * ReferenceType =
- dyn_cast<VectorType>(ArgTys[D.getArgumentNumber()]);
+ dyn_cast<VectorType>(ArgTys[D.getArgumentNumber()]);
VectorType *ThisArgType = dyn_cast<VectorType>(Ty);
if (!ThisArgType || !ReferenceType ||
(ReferenceType->getVectorNumElements() !=
@@ -1065,6 +1081,16 @@ bool Intrinsic::matchIntrinsicType(Type *Ty, ArrayRef<Intrinsic::IITDescriptor>
PointerType *ThisArgType = dyn_cast<PointerType>(Ty);
return (!ThisArgType || ThisArgType->getElementType() != ReferenceType);
}
+ case IITDescriptor::PtrToElt: {
+ if (D.getArgumentNumber() >= ArgTys.size())
+ return true;
+ VectorType * ReferenceType =
+ dyn_cast<VectorType> (ArgTys[D.getArgumentNumber()]);
+ PointerType *ThisArgType = dyn_cast<PointerType>(Ty);
+
+ return (!ThisArgType || !ReferenceType ||
+ ThisArgType->getElementType() != ReferenceType->getElementType());
+ }
case IITDescriptor::VecOfPtrsToElt: {
if (D.getArgumentNumber() >= ArgTys.size())
return true;
@@ -1264,7 +1290,27 @@ Optional<uint64_t> Function::getEntryCount() const {
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();
+ uint64_t Count = CI->getValue().getZExtValue();
+ if (Count == 0)
+ return None;
+ return Count;
}
return None;
}
+
+void Function::setSectionPrefix(StringRef Prefix) {
+ MDBuilder MDB(getContext());
+ setMetadata(LLVMContext::MD_section_prefix,
+ MDB.createFunctionSectionPrefix(Prefix));
+}
+
+Optional<StringRef> Function::getSectionPrefix() const {
+ if (MDNode *MD = getMetadata(LLVMContext::MD_section_prefix)) {
+ assert(dyn_cast<MDString>(MD->getOperand(0))
+ ->getString()
+ .equals("function_section_prefix") &&
+ "Metadata not match");
+ return dyn_cast<MDString>(MD->getOperand(1))->getString();
+ }
+ return None;
+}
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