//===----------------------------------------------------------------------===//
#include "llvm/Module.h"
-#include "llvm/InstrTypes.h"
+#include "SymbolTableListTraitsImpl.h"
+#include "llvm/ADT/DenseSet.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/StringExtras.h"
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/GVMaterializer.h"
+#include "llvm/InstrTypes.h"
#include "llvm/LLVMContext.h"
-#include "llvm/ADT/DenseSet.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/LeakDetector.h"
-#include "SymbolTableListTraitsImpl.h"
#include <algorithm>
#include <cstdarg>
#include <cstdlib>
// Methods to implement the globals and functions lists.
//
-GlobalVariable *ilist_traits<GlobalVariable>::createSentinel() {
- GlobalVariable *Ret = new GlobalVariable(Type::getInt32Ty(getGlobalContext()),
- false, GlobalValue::ExternalLinkage);
- // This should not be garbage monitored.
- LeakDetector::removeGarbageObject(Ret);
- return Ret;
-}
-GlobalAlias *ilist_traits<GlobalAlias>::createSentinel() {
- GlobalAlias *Ret = new GlobalAlias(Type::getInt32Ty(getGlobalContext()),
- GlobalValue::ExternalLinkage);
- // This should not be garbage monitored.
- LeakDetector::removeGarbageObject(Ret);
- return Ret;
-}
-
// Explicit instantiations of SymbolTableListTraits since some of the methods
// are not in the public header file.
-template class llvm::SymbolTableListTraits<GlobalVariable, Module>;
template class llvm::SymbolTableListTraits<Function, Module>;
+template class llvm::SymbolTableListTraits<GlobalVariable, Module>;
template class llvm::SymbolTableListTraits<GlobalAlias, Module>;
//===----------------------------------------------------------------------===//
GlobalList.clear();
FunctionList.clear();
AliasList.clear();
- LibraryList.clear();
NamedMDList.clear();
delete ValSymTab;
delete static_cast<StringMap<NamedMDNode *> *>(NamedMDSymTab);
Module::Endianness Module::getEndianness() const {
StringRef temp = DataLayout;
Module::Endianness ret = AnyEndianness;
-
+
while (!temp.empty()) {
- StringRef token = DataLayout;
- tie(token, temp) = getToken(temp, "-");
-
+ std::pair<StringRef, StringRef> P = getToken(temp, "-");
+
+ StringRef token = P.first;
+ temp = P.second;
+
if (token[0] == 'e') {
ret = LittleEndian;
} else if (token[0] == 'E') {
ret = BigEndian;
}
}
-
+
return ret;
}
-/// Target Pointer Size information...
+/// Target Pointer Size information.
Module::PointerSize Module::getPointerSize() const {
StringRef temp = DataLayout;
Module::PointerSize ret = AnyPointerSize;
-
+
while (!temp.empty()) {
- StringRef token, signalToken;
- tie(token, temp) = getToken(temp, "-");
- tie(signalToken, token) = getToken(token, ":");
-
+ std::pair<StringRef, StringRef> TmpP = getToken(temp, "-");
+ temp = TmpP.second;
+ TmpP = getToken(TmpP.first, ":");
+ StringRef token = TmpP.second, signalToken = TmpP.first;
+
if (signalToken[0] == 'p') {
int size = 0;
getToken(token, ":").first.getAsInteger(10, size);
ret = Pointer64;
}
}
-
+
return ret;
}
// the symbol table directly for this common task.
//
Constant *Module::getOrInsertFunction(StringRef Name,
- const FunctionType *Ty,
+ FunctionType *Ty,
AttrListPtr AttributeList) {
// See if we have a definition for the specified function already.
GlobalValue *F = getNamedValue(Name);
// right type.
if (F->getType() != PointerType::getUnqual(Ty))
return ConstantExpr::getBitCast(F, PointerType::getUnqual(Ty));
-
+
// Otherwise, we just found the existing function or a prototype.
- return F;
+ return F;
}
Constant *Module::getOrInsertTargetIntrinsic(StringRef Name,
- const FunctionType *Ty,
+ FunctionType *Ty,
AttrListPtr AttributeList) {
// See if we have a definition for the specified function already.
GlobalValue *F = getNamedValue(Name);
}
// Otherwise, we just found the existing function or a prototype.
- return F;
+ return F;
}
Constant *Module::getOrInsertFunction(StringRef Name,
- const FunctionType *Ty) {
- AttrListPtr AttributeList = AttrListPtr::get((AttributeWithIndex *)0, 0);
- return getOrInsertFunction(Name, Ty, AttributeList);
+ FunctionType *Ty) {
+ return getOrInsertFunction(Name, Ty, AttrListPtr());
}
// getOrInsertFunction - Look up the specified function in the module symbol
//
Constant *Module::getOrInsertFunction(StringRef Name,
AttrListPtr AttributeList,
- const Type *RetTy, ...) {
+ Type *RetTy, ...) {
va_list Args;
va_start(Args, RetTy);
// Build the list of argument types...
- std::vector<const Type*> ArgTys;
- while (const Type *ArgTy = va_arg(Args, const Type*))
+ std::vector<Type*> ArgTys;
+ while (Type *ArgTy = va_arg(Args, Type*))
ArgTys.push_back(ArgTy);
va_end(Args);
}
Constant *Module::getOrInsertFunction(StringRef Name,
- const Type *RetTy, ...) {
+ Type *RetTy, ...) {
va_list Args;
va_start(Args, RetTy);
// Build the list of argument types...
- std::vector<const Type*> ArgTys;
- while (const Type *ArgTy = va_arg(Args, const Type*))
+ std::vector<Type*> ArgTys;
+ while (Type *ArgTy = va_arg(Args, Type*))
ArgTys.push_back(ArgTy);
va_end(Args);
// Build the function type and chain to the other getOrInsertFunction...
- return getOrInsertFunction(Name,
+ return getOrInsertFunction(Name,
FunctionType::get(RetTy, ArgTys, false),
- AttrListPtr::get((AttributeWithIndex *)0, 0));
+ AttrListPtr());
}
// getFunction - Look up the specified function in the module symbol table.
///
GlobalVariable *Module::getGlobalVariable(StringRef Name,
bool AllowLocal) const {
- if (GlobalVariable *Result =
+ if (GlobalVariable *Result =
dyn_cast_or_null<GlobalVariable>(getNamedValue(Name)))
if (AllowLocal || !Result->hasLocalLinkage())
return Result;
/// with a constantexpr cast to the right type.
/// 3. Finally, if the existing global is the correct delclaration, return the
/// existing global.
-Constant *Module::getOrInsertGlobal(StringRef Name, const Type *Ty) {
+Constant *Module::getOrInsertGlobal(StringRef Name, Type *Ty) {
// See if we have a definition for the specified global already.
GlobalVariable *GV = dyn_cast_or_null<GlobalVariable>(getNamedValue(Name));
if (GV == 0) {
// right type.
if (GV->getType() != PointerType::getUnqual(Ty))
return ConstantExpr::getBitCast(GV, PointerType::getUnqual(Ty));
-
+
// Otherwise, we just found the existing function or a prototype.
return GV;
}
}
/// getNamedMetadata - Return the first NamedMDNode in the module with the
-/// specified name. This method returns null if a NamedMDNode with the
+/// specified name. This method returns null if a NamedMDNode with the
/// specified name is not found.
NamedMDNode *Module::getNamedMetadata(const Twine &Name) const {
SmallString<256> NameData;
return static_cast<StringMap<NamedMDNode*> *>(NamedMDSymTab)->lookup(NameRef);
}
-/// getOrInsertNamedMetadata - Return the first named MDNode in the module
-/// with the specified name. This method returns a new NamedMDNode if a
+/// getOrInsertNamedMetadata - Return the first named MDNode in the module
+/// with the specified name. This method returns a new NamedMDNode if a
/// NamedMDNode with the specified name is not found.
NamedMDNode *Module::getOrInsertNamedMetadata(StringRef Name) {
NamedMDNode *&NMD =
return NMD;
}
+/// eraseNamedMetadata - Remove the given NamedMDNode from this module and
+/// delete it.
void Module::eraseNamedMetadata(NamedMDNode *NMD) {
static_cast<StringMap<NamedMDNode *> *>(NamedMDSymTab)->erase(NMD->getName());
NamedMDList.erase(NMD);
}
+/// getModuleFlagsMetadata - Returns the module flags in the provided vector.
+void Module::
+getModuleFlagsMetadata(SmallVectorImpl<ModuleFlagEntry> &Flags) const {
+ const NamedMDNode *ModFlags = getModuleFlagsMetadata();
+ if (!ModFlags) return;
+
+ for (unsigned i = 0, e = ModFlags->getNumOperands(); i != e; ++i) {
+ MDNode *Flag = ModFlags->getOperand(i);
+ ConstantInt *Behavior = cast<ConstantInt>(Flag->getOperand(0));
+ MDString *Key = cast<MDString>(Flag->getOperand(1));
+ Value *Val = Flag->getOperand(2);
+ Flags.push_back(ModuleFlagEntry(ModFlagBehavior(Behavior->getZExtValue()),
+ Key, Val));
+ }
+}
+
+/// getModuleFlagsMetadata - Returns the NamedMDNode in the module that
+/// represents module-level flags. This method returns null if there are no
+/// module-level flags.
+NamedMDNode *Module::getModuleFlagsMetadata() const {
+ return getNamedMetadata("llvm.module.flags");
+}
+
+/// getOrInsertModuleFlagsMetadata - Returns the NamedMDNode in the module that
+/// represents module-level flags. If module-level flags aren't found, it
+/// creates the named metadata that contains them.
+NamedMDNode *Module::getOrInsertModuleFlagsMetadata() {
+ return getOrInsertNamedMetadata("llvm.module.flags");
+}
+
+/// addModuleFlag - Add a module-level flag to the module-level flags
+/// metadata. It will create the module-level flags named metadata if it doesn't
+/// already exist.
+void Module::addModuleFlag(ModFlagBehavior Behavior, StringRef Key,
+ Value *Val) {
+ Type *Int32Ty = Type::getInt32Ty(Context);
+ Value *Ops[3] = {
+ ConstantInt::get(Int32Ty, Behavior), MDString::get(Context, Key), Val
+ };
+ getOrInsertModuleFlagsMetadata()->addOperand(MDNode::get(Context, Ops));
+}
+void Module::addModuleFlag(ModFlagBehavior Behavior, StringRef Key,
+ uint32_t Val) {
+ Type *Int32Ty = Type::getInt32Ty(Context);
+ addModuleFlag(Behavior, Key, ConstantInt::get(Int32Ty, Val));
+}
+void Module::addModuleFlag(MDNode *Node) {
+ assert(Node->getNumOperands() == 3 &&
+ "Invalid number of operands for module flag!");
+ assert(isa<ConstantInt>(Node->getOperand(0)) &&
+ isa<MDString>(Node->getOperand(1)) &&
+ "Invalid operand types for module flag!");
+ getOrInsertModuleFlagsMetadata()->addOperand(Node);
+}
//===----------------------------------------------------------------------===//
// Methods to control the materialization of GlobalValues in the Module.
//
-// dropAllReferences() - This function causes all the subelementss to "let go"
+// dropAllReferences() - This function causes all the subelements to "let go"
// of all references that they are maintaining. This allows one to 'delete' a
// whole module at a time, even though there may be circular references... first
// all references are dropped, and all use counts go to zero. Then everything
for(Module::alias_iterator I = alias_begin(), E = alias_end(); I != E; ++I)
I->dropAllReferences();
}
-
-void Module::addLibrary(StringRef Lib) {
- for (Module::lib_iterator I = lib_begin(), E = lib_end(); I != E; ++I)
- if (*I == Lib)
- return;
- LibraryList.push_back(Lib);
-}
-
-void Module::removeLibrary(StringRef Lib) {
- LibraryListType::iterator I = LibraryList.begin();
- LibraryListType::iterator E = LibraryList.end();
- for (;I != E; ++I)
- if (*I == Lib) {
- LibraryList.erase(I);
- return;
- }
-}
-
-//===----------------------------------------------------------------------===//
-// Type finding functionality.
-//===----------------------------------------------------------------------===//
-
-namespace {
- /// TypeFinder - Walk over a module, identifying all of the types that are
- /// used by the module.
- class TypeFinder {
- // To avoid walking constant expressions multiple times and other IR
- // objects, we keep several helper maps.
- DenseSet<const Value*> VisitedConstants;
- DenseSet<const Type*> VisitedTypes;
-
- std::vector<StructType*> &StructTypes;
- public:
- TypeFinder(std::vector<StructType*> &structTypes)
- : StructTypes(structTypes) {}
-
- void run(const Module &M) {
- // Get types from global variables.
- for (Module::const_global_iterator I = M.global_begin(),
- E = M.global_end(); I != E; ++I) {
- incorporateType(I->getType());
- if (I->hasInitializer())
- incorporateValue(I->getInitializer());
- }
-
- // Get types from aliases.
- for (Module::const_alias_iterator I = M.alias_begin(),
- E = M.alias_end(); I != E; ++I) {
- incorporateType(I->getType());
- if (const Value *Aliasee = I->getAliasee())
- incorporateValue(Aliasee);
- }
-
- SmallVector<std::pair<unsigned, MDNode*>, 4> MDForInst;
-
- // Get types from functions.
- for (Module::const_iterator FI = M.begin(), E = M.end(); FI != E; ++FI) {
- incorporateType(FI->getType());
-
- for (Function::const_iterator BB = FI->begin(), E = FI->end();
- BB != E;++BB)
- for (BasicBlock::const_iterator II = BB->begin(),
- E = BB->end(); II != E; ++II) {
- const Instruction &I = *II;
- // Incorporate the type of the instruction and all its operands.
- incorporateType(I.getType());
- for (User::const_op_iterator OI = I.op_begin(), OE = I.op_end();
- OI != OE; ++OI)
- incorporateValue(*OI);
-
- // Incorporate types hiding in metadata.
- I.getAllMetadata(MDForInst);
- for (unsigned i = 0, e = MDForInst.size(); i != e; ++i)
- incorporateMDNode(MDForInst[i].second);
- MDForInst.clear();
- }
- }
-
- for (Module::const_named_metadata_iterator I = M.named_metadata_begin(),
- E = M.named_metadata_end(); I != E; ++I) {
- const NamedMDNode *NMD = I;
- for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i)
- incorporateMDNode(NMD->getOperand(i));
- }
- }
-
- private:
- void incorporateType(Type *Ty) {
- // Check to see if we're already visited this type.
- if (!VisitedTypes.insert(Ty).second)
- return;
-
- // If this is a structure or opaque type, add a name for the type.
- if (StructType *STy = dyn_cast<StructType>(Ty))
- StructTypes.push_back(STy);
-
- // Recursively walk all contained types.
- for (Type::subtype_iterator I = Ty->subtype_begin(),
- E = Ty->subtype_end(); I != E; ++I)
- incorporateType(*I);
- }
-
- /// incorporateValue - This method is used to walk operand lists finding
- /// types hiding in constant expressions and other operands that won't be
- /// walked in other ways. GlobalValues, basic blocks, instructions, and
- /// inst operands are all explicitly enumerated.
- void incorporateValue(const Value *V) {
- if (const MDNode *M = dyn_cast<MDNode>(V))
- return incorporateMDNode(M);
- if (!isa<Constant>(V) || isa<GlobalValue>(V)) return;
-
- // Already visited?
- if (!VisitedConstants.insert(V).second)
- return;
-
- // Check this type.
- incorporateType(V->getType());
-
- // Look in operands for types.
- const User *U = cast<User>(V);
- for (Constant::const_op_iterator I = U->op_begin(),
- E = U->op_end(); I != E;++I)
- incorporateValue(*I);
- }
-
- void incorporateMDNode(const MDNode *V) {
-
- // Already visited?
- if (!VisitedConstants.insert(V).second)
- return;
-
- // Look in operands for types.
- for (unsigned i = 0, e = V->getNumOperands(); i != e; ++i)
- if (Value *Op = V->getOperand(i))
- incorporateValue(Op);
- }
- };
-} // end anonymous namespace
-
-void Module::findUsedStructTypes(std::vector<StructType*> &StructTypes) const {
- TypeFinder(StructTypes).run(*this);
-}
-
-
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