//
// 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.
//
//===----------------------------------------------------------------------===//
//
Module *llvm::CloneModule(const Module *M) {
// Create the value map that maps things from the old module over to the new
// module.
- DenseMap<const Value*, Value*> ValueMap;
- return CloneModule(M, ValueMap);
+ ValueToValueMapTy VMap;
+ return CloneModule(M, VMap);
}
Module *llvm::CloneModule(const Module *M,
- DenseMap<const Value*, Value*> &ValueMap) {
+ ValueToValueMapTy &VMap) {
// First off, we need to create the new module...
- Module *New = new Module(M->getModuleIdentifier());
+ Module *New = new Module(M->getModuleIdentifier(), M->getContext());
New->setDataLayout(M->getDataLayout());
New->setTargetTriple(M->getTargetTriple());
New->setModuleInlineAsm(M->getModuleInlineAsm());
New->addLibrary(*I);
// Loop over all of the global variables, making corresponding globals in the
- // new module. Here we add them to the ValueMap and to the new Module. We
+ // new module. Here we add them to the VMap and to the new Module. We
// don't worry about attributes or initializers, they will come later.
//
for (Module::const_global_iterator I = M->global_begin(), E = M->global_end();
- I != E; ++I)
- ValueMap[I] = new GlobalVariable(I->getType()->getElementType(), false,
- GlobalValue::ExternalLinkage, 0,
- I->getName(), New);
+ I != E; ++I) {
+ GlobalVariable *GV = new GlobalVariable(*New,
+ I->getType()->getElementType(),
+ false,
+ GlobalValue::ExternalLinkage, 0,
+ I->getName());
+ GV->setAlignment(I->getAlignment());
+ VMap[I] = GV;
+ }
// Loop over the functions in the module, making external functions as before
for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I) {
Function *NF =
- new Function(cast<FunctionType>(I->getType()->getElementType()),
- GlobalValue::ExternalLinkage, I->getName(), New);
- NF->setCallingConv(I->getCallingConv());
- ValueMap[I]= NF;
+ Function::Create(cast<FunctionType>(I->getType()->getElementType()),
+ GlobalValue::ExternalLinkage, I->getName(), New);
+ NF->copyAttributesFrom(I);
+ VMap[I] = NF;
}
+ // Loop over the aliases in the module
+ for (Module::const_alias_iterator I = M->alias_begin(), E = M->alias_end();
+ I != E; ++I)
+ VMap[I] = new GlobalAlias(I->getType(), GlobalAlias::ExternalLinkage,
+ I->getName(), NULL, New);
+
// Now that all of the things that global variable initializer can refer to
// have been created, loop through and copy the global variable referrers
// over... We also set the attributes on the global now.
//
for (Module::const_global_iterator I = M->global_begin(), E = M->global_end();
I != E; ++I) {
- GlobalVariable *GV = cast<GlobalVariable>(ValueMap[I]);
+ GlobalVariable *GV = cast<GlobalVariable>(VMap[I]);
if (I->hasInitializer())
GV->setInitializer(cast<Constant>(MapValue(I->getInitializer(),
- ValueMap)));
+ VMap)));
GV->setLinkage(I->getLinkage());
+ GV->setThreadLocal(I->isThreadLocal());
+ GV->setConstant(I->isConstant());
}
// Similarly, copy over function bodies now...
//
for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I) {
- Function *F = cast<Function>(ValueMap[I]);
+ Function *F = cast<Function>(VMap[I]);
if (!I->isDeclaration()) {
Function::arg_iterator DestI = F->arg_begin();
for (Function::const_arg_iterator J = I->arg_begin(); J != I->arg_end();
++J) {
DestI->setName(J->getName());
- ValueMap[J] = DestI++;
+ VMap[J] = DestI++;
}
- std::vector<ReturnInst*> Returns; // Ignore returns cloned...
- CloneFunctionInto(F, I, ValueMap, Returns);
+ SmallVector<ReturnInst*, 8> Returns; // Ignore returns cloned.
+ CloneFunctionInto(F, I, VMap, Returns);
}
F->setLinkage(I->getLinkage());
}
+ // And aliases
+ for (Module::const_alias_iterator I = M->alias_begin(), E = M->alias_end();
+ I != E; ++I) {
+ GlobalAlias *GA = cast<GlobalAlias>(VMap[I]);
+ GA->setLinkage(I->getLinkage());
+ if (const Constant* C = I->getAliasee())
+ GA->setAliasee(cast<Constant>(MapValue(C, VMap)));
+ }
+
+ // And named metadata....
+ for (Module::const_named_metadata_iterator I = M->named_metadata_begin(),
+ E = M->named_metadata_end(); I != E; ++I) {
+ const NamedMDNode &NMD = *I;
+ NamedMDNode *NewNMD = New->getOrInsertNamedMetadata(NMD.getName());
+ for (unsigned i = 0, e = NMD.getNumOperands(); i != e; ++i)
+ NewNMD->addOperand(cast<MDNode>(MapValue(NMD.getOperand(i), VMap)));
+ }
+
+ // Update metadata attach with instructions.
+ for (Module::iterator MI = New->begin(), ME = New->end(); MI != ME; ++MI)
+ for (Function::iterator FI = MI->begin(), FE = MI->end();
+ FI != FE; ++FI)
+ for (BasicBlock::iterator BI = FI->begin(), BE = FI->end();
+ BI != BE; ++BI) {
+ SmallVector<std::pair<unsigned, MDNode *>, 4 > MDs;
+ BI->getAllMetadata(MDs);
+ for (SmallVector<std::pair<unsigned, MDNode *>, 4>::iterator
+ MDI = MDs.begin(), MDE = MDs.end(); MDI != MDE; ++MDI) {
+ Value *MappedValue = MapValue(MDI->second, VMap);
+ if (MDI->second != MappedValue && MappedValue)
+ BI->setMetadata(MDI->first, cast<MDNode>(MappedValue));
+ }
+ }
return New;
}
-
-// vim: sw=2
projects / oota-llvm.git / blobdiff