//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
#include "llvm/InstrTypes.h"
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
+#include "llvm/LLVMContext.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/LeakDetector.h"
#include <algorithm>
#include <cstdarg>
#include <cstdlib>
-#include <map>
using namespace llvm;
//===----------------------------------------------------------------------===//
// Methods to implement the globals and functions lists.
//
-Function *ilist_traits<Function>::createSentinel() {
- FunctionType *FTy =
- FunctionType::get(Type::VoidTy, std::vector<const Type*>(), false);
- Function *Ret = new Function(FTy, GlobalValue::ExternalLinkage);
- // This should not be garbage monitored.
- LeakDetector::removeGarbageObject(Ret);
- return Ret;
-}
GlobalVariable *ilist_traits<GlobalVariable>::createSentinel() {
- GlobalVariable *Ret = new GlobalVariable(Type::Int32Ty, false,
- GlobalValue::ExternalLinkage);
+ GlobalVariable *Ret = new GlobalVariable(getGlobalContext(),
+ 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::Int32Ty, GlobalValue::ExternalLinkage);
+ GlobalAlias *Ret = new GlobalAlias(Type::getInt32Ty(getGlobalContext()),
+ GlobalValue::ExternalLinkage);
// This should not be garbage monitored.
LeakDetector::removeGarbageObject(Ret);
return Ret;
}
-iplist<Function> &ilist_traits<Function>::getList(Module *M) {
- return M->getFunctionList();
-}
-iplist<GlobalVariable> &ilist_traits<GlobalVariable>::getList(Module *M) {
- return M->getGlobalList();
-}
-iplist<GlobalAlias> &ilist_traits<GlobalAlias>::getList(Module *M) {
- return M->getAliasList();
-}
-
// Explicit instantiations of SymbolTableListTraits since some of the methods
// are not in the public header file.
template class SymbolTableListTraits<GlobalVariable, Module>;
// Primitive Module methods.
//
-Module::Module(const std::string &MID)
- : ModuleID(MID), DataLayout("") {
+Module::Module(const StringRef &MID, LLVMContext& C)
+ : Context(C), ModuleID(MID), DataLayout("") {
ValSymTab = new ValueSymbolTable();
TypeSymTab = new TypeSymbolTable();
}
FunctionList.clear();
AliasList.clear();
LibraryList.clear();
+ NamedMDList.clear();
delete ValSymTab;
delete TypeSymTab;
}
-// Module::dump() - Allow printing from debugger
-void Module::dump() const {
- print(*cerr.stream());
-}
-
/// Target endian information...
Module::Endianness Module::getEndianness() const {
std::string temp = DataLayout;
return ret;
}
+/// getNamedValue - Return the first global value in the module with
+/// the specified name, of arbitrary type. This method returns null
+/// if a global with the specified name is not found.
+GlobalValue *Module::getNamedValue(const StringRef &Name) const {
+ return cast_or_null<GlobalValue>(getValueSymbolTable().lookup(Name));
+}
+
//===----------------------------------------------------------------------===//
// Methods for easy access to the functions in the module.
//
// it. This is nice because it allows most passes to get away with not handling
// the symbol table directly for this common task.
//
-Constant *Module::getOrInsertFunction(const std::string &Name,
- const FunctionType *Ty) {
- ValueSymbolTable &SymTab = getValueSymbolTable();
-
+Constant *Module::getOrInsertFunction(const StringRef &Name,
+ const FunctionType *Ty,
+ AttrListPtr AttributeList) {
// See if we have a definition for the specified function already.
- GlobalValue *F = dyn_cast_or_null<GlobalValue>(SymTab.lookup(Name));
+ GlobalValue *F = getNamedValue(Name);
if (F == 0) {
// Nope, add it
- Function *New = new Function(Ty, GlobalVariable::ExternalLinkage, Name);
+ Function *New = Function::Create(Ty, GlobalVariable::ExternalLinkage, Name);
+ if (!New->isIntrinsic()) // Intrinsics get attrs set on construction
+ New->setAttributes(AttributeList);
FunctionList.push_back(New);
return New; // Return the new prototype.
}
// Okay, the function exists. Does it have externally visible linkage?
- if (F->hasInternalLinkage()) {
- // Rename the function.
- F->setName(SymTab.getUniqueName(F->getName()));
+ if (F->hasLocalLinkage()) {
+ // Clear the function's name.
+ F->setName("");
// Retry, now there won't be a conflict.
- return getOrInsertFunction(Name, Ty);
+ Constant *NewF = getOrInsertFunction(Name, Ty);
+ F->setName(Name);
+ return NewF;
}
// If the function exists but has the wrong type, return a bitcast to the
// right type.
- if (F->getType() != PointerType::get(Ty))
- return ConstantExpr::getBitCast(F, PointerType::get(Ty));
+ 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;
}
+Constant *Module::getOrInsertTargetIntrinsic(const StringRef &Name,
+ const FunctionType *Ty,
+ AttrListPtr AttributeList) {
+ // See if we have a definition for the specified function already.
+ GlobalValue *F = getNamedValue(Name);
+ if (F == 0) {
+ // Nope, add it
+ Function *New = Function::Create(Ty, GlobalVariable::ExternalLinkage, Name);
+ New->setAttributes(AttributeList);
+ FunctionList.push_back(New);
+ return New; // Return the new prototype.
+ }
+
+ // Otherwise, we just found the existing function or a prototype.
+ return F;
+}
+
+Constant *Module::getOrInsertFunction(const StringRef &Name,
+ const FunctionType *Ty) {
+ AttrListPtr AttributeList = AttrListPtr::get((AttributeWithIndex *)0, 0);
+ return getOrInsertFunction(Name, Ty, AttributeList);
+}
+
// getOrInsertFunction - Look up the specified function in the module symbol
// table. If it does not exist, add a prototype for the function and return it.
// This version of the method takes a null terminated list of function
// arguments, which makes it easier for clients to use.
//
-Constant *Module::getOrInsertFunction(const std::string &Name,
+Constant *Module::getOrInsertFunction(const StringRef &Name,
+ AttrListPtr AttributeList,
const Type *RetTy, ...) {
va_list Args;
va_start(Args, RetTy);
va_end(Args);
// Build the function type and chain to the other getOrInsertFunction...
- return getOrInsertFunction(Name, FunctionType::get(RetTy, ArgTys, false));
+ return getOrInsertFunction(Name,
+ FunctionType::get(RetTy, ArgTys, false),
+ AttributeList);
}
+Constant *Module::getOrInsertFunction(const StringRef &Name,
+ const 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*))
+ ArgTys.push_back(ArgTy);
+
+ va_end(Args);
+
+ // Build the function type and chain to the other getOrInsertFunction...
+ return getOrInsertFunction(Name,
+ FunctionType::get(RetTy, ArgTys, false),
+ AttrListPtr::get((AttributeWithIndex *)0, 0));
+}
// getFunction - Look up the specified function in the module symbol table.
// If it does not exist, return null.
//
-Function *Module::getFunction(const std::string &Name) const {
- const ValueSymbolTable &SymTab = getValueSymbolTable();
- return dyn_cast_or_null<Function>(SymTab.lookup(Name));
+Function *Module::getFunction(const StringRef &Name) const {
+ return dyn_cast_or_null<Function>(getNamedValue(Name));
}
//===----------------------------------------------------------------------===//
/// symbol table. If it does not exist, return null. The type argument
/// should be the underlying type of the global, i.e., it should not have
/// the top-level PointerType, which represents the address of the global.
-/// If AllowInternal is set to true, this function will return types that
-/// have InternalLinkage. By default, these types are not returned.
+/// If AllowLocal is set to true, this function will return types that
+/// have an local. By default, these types are not returned.
///
-GlobalVariable *Module::getGlobalVariable(const std::string &Name,
- bool AllowInternal) const {
- if (Value *V = ValSymTab->lookup(Name)) {
- GlobalVariable *Result = dyn_cast<GlobalVariable>(V);
- if (Result && (AllowInternal || !Result->hasInternalLinkage()))
+GlobalVariable *Module::getGlobalVariable(const StringRef &Name,
+ bool AllowLocal) const {
+ if (GlobalVariable *Result =
+ dyn_cast_or_null<GlobalVariable>(getNamedValue(Name)))
+ if (AllowLocal || !Result->hasLocalLinkage())
return Result;
- }
return 0;
}
+/// getOrInsertGlobal - Look up the specified global in the module symbol table.
+/// 1. If it does not exist, add a declaration of the global and return it.
+/// 2. Else, the global exists but has the wrong type: return the function
+/// 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(const StringRef &Name, const 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) {
+ // Nope, add it
+ GlobalVariable *New =
+ new GlobalVariable(*this, Ty, false, GlobalVariable::ExternalLinkage,
+ 0, Name);
+ return New; // Return the new declaration.
+ }
+
+ // If the variable exists but has the wrong type, return a bitcast to the
+ // 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;
+}
+
//===----------------------------------------------------------------------===//
// Methods for easy access to the global variables in the module.
//
// getNamedAlias - Look up the specified global in the module symbol table.
// If it does not exist, return null.
//
-GlobalAlias *Module::getNamedAlias(const std::string &Name) const {
- const ValueSymbolTable &SymTab = getValueSymbolTable();
- return dyn_cast_or_null<GlobalAlias>(SymTab.lookup(Name));
+GlobalAlias *Module::getNamedAlias(const StringRef &Name) const {
+ return dyn_cast_or_null<GlobalAlias>(getNamedValue(Name));
+}
+
+/// getNamedMetadata - Return the first NamedMDNode in the module with the
+/// specified name. This method returns null if a NamedMDNode with the
+//// specified name is not found.
+NamedMDNode *Module::getNamedMetadata(const StringRef &Name) const {
+ return dyn_cast_or_null<NamedMDNode>(getValueSymbolTable().lookup(Name));
+}
+
+/// 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(const StringRef &Name) {
+ NamedMDNode *NMD =
+ dyn_cast_or_null<NamedMDNode>(getValueSymbolTable().lookup(Name));
+ if (!NMD)
+ NMD = NamedMDNode::Create(getContext(), Name, NULL, 0, this);
+ return NMD;
}
//===----------------------------------------------------------------------===//
// there is already an entry for this name, true is returned and the symbol
// table is not modified.
//
-bool Module::addTypeName(const std::string &Name, const Type *Ty) {
+bool Module::addTypeName(const StringRef &Name, const Type *Ty) {
TypeSymbolTable &ST = getTypeSymbolTable();
if (ST.lookup(Name)) return true; // Already in symtab...
/// getTypeByName - Return the type with the specified name in this module, or
/// null if there is none by that name.
-const Type *Module::getTypeByName(const std::string &Name) const {
+const Type *Module::getTypeByName(const StringRef &Name) const {
const TypeSymbolTable &ST = getTypeSymbolTable();
return cast_or_null<Type>(ST.lookup(Name));
}
for(Module::global_iterator I = global_begin(), E = global_end(); I != E; ++I)
I->dropAllReferences();
+
+ for(Module::alias_iterator I = alias_begin(), E = alias_end(); I != E; ++I)
+ I->dropAllReferences();
}
-void Module::addLibrary(const std::string& Lib) {
+void Module::addLibrary(const 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(const std::string& Lib) {
+void Module::removeLibrary(const StringRef& Lib) {
LibraryListType::iterator I = LibraryList.begin();
LibraryListType::iterator E = LibraryList.end();
for (;I != E; ++I)
return;
}
}
-
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