//
// 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/Transforms/Utils/Cloning.h"
-#include "llvm/Module.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/SymbolTable.h"
-#include "llvm/TypeSymbolTable.h"
-#include "llvm/Constant.h"
-#include "ValueMapper.h"
+#include "llvm/IR/Constant.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/Module.h"
+#include "llvm/Transforms/Utils/ValueMapper.h"
using namespace llvm;
/// CloneModule - Return an exact copy of the specified module. This is not as
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) {
- // First off, we need to create the new module...
- Module *New = new Module(M->getModuleIdentifier());
+Module *llvm::CloneModule(const Module *M, ValueToValueMapTy &VMap) {
+ // First off, we need to create the new module.
+ Module *New = new Module(M->getModuleIdentifier(), M->getContext());
New->setDataLayout(M->getDataLayout());
New->setTargetTriple(M->getTargetTriple());
New->setModuleInlineAsm(M->getModuleInlineAsm());
-
- // Copy all of the type symbol table entries over.
- const TypeSymbolTable &TST = M->getTypeSymbolTable();
- for (TypeSymbolTable::const_iterator TI = TST.begin(), TE = TST.end();
- TI != TE; ++TI)
- New->addTypeName(TI->first, TI->second);
-
- // Copy all of the dependent libraries over.
- for (Module::lib_iterator I = M->lib_begin(), E = M->lib_end(); I != E; ++I)
- 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(),
+ I->isConstant(), I->getLinkage(),
+ (Constant*) nullptr, I->getName(),
+ (GlobalVariable*) nullptr,
+ I->getThreadLocalMode(),
+ I->getType()->getAddressSpace());
+ GV->copyAttributesFrom(I);
+ 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()),
+ I->getLinkage(), 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) {
+ GlobalAlias *GA = new GlobalAlias(I->getType(), I->getLinkage(),
+ I->getName(), nullptr, New);
+ GA->copyAttributesFrom(I);
+ VMap[I] = GA;
+ }
+
// 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)));
- GV->setLinkage(I->getLinkage());
+ GV->setInitializer(MapValue(I->getInitializer(), VMap));
}
// 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, /*ModuleLevelChanges=*/true, Returns);
}
+ }
+
+ // And aliases
+ for (Module::const_alias_iterator I = M->alias_begin(), E = M->alias_end();
+ I != E; ++I) {
+ GlobalAlias *GA = cast<GlobalAlias>(VMap[I]);
+ if (const Constant *C = I->getAliasee())
+ GA->setAliasee(MapValue(C, VMap));
+ }
- F->setLinkage(I->getLinkage());
+ // 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(MapValue(NMD.getOperand(i), VMap));
}
return New;
}
-
-// vim: sw=2
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