mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-25 16:29:20 +00:00
into their new header subdirectory: include/llvm/IR. This matches the directory structure of lib, and begins to correct a long standing point of file layout clutter in LLVM. There are still more header files to move here, but I wanted to handle them in separate commits to make tracking what files make sense at each layer easier. The only really questionable files here are the target intrinsic tablegen files. But that's a battle I'd rather not fight today. I've updated both CMake and Makefile build systems (I think, and my tests think, but I may have missed something). I've also re-sorted the includes throughout the project. I'll be committing updates to Clang, DragonEgg, and Polly momentarily. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171366 91177308-0d34-0410-b5e6-96231b3b80d8
123 lines
4.7 KiB
C++
123 lines
4.7 KiB
C++
//===- CloneModule.cpp - Clone an entire module ---------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements the CloneModule interface which makes a copy of an
|
|
// entire module.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Transforms/Utils/Cloning.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
|
|
/// easy as it might seem because we have to worry about making copies of global
|
|
/// variables and functions, and making their (initializers and references,
|
|
/// respectively) refer to the right globals.
|
|
///
|
|
Module *llvm::CloneModule(const Module *M) {
|
|
// Create the value map that maps things from the old module over to the new
|
|
// module.
|
|
ValueToValueMapTy VMap;
|
|
return CloneModule(M, VMap);
|
|
}
|
|
|
|
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());
|
|
|
|
// Loop over all of the global variables, making corresponding globals in the
|
|
// 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) {
|
|
GlobalVariable *GV = new GlobalVariable(*New,
|
|
I->getType()->getElementType(),
|
|
I->isConstant(), I->getLinkage(),
|
|
(Constant*) 0, I->getName(),
|
|
(GlobalVariable*) 0,
|
|
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 =
|
|
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(), NULL, 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>(VMap[I]);
|
|
if (I->hasInitializer())
|
|
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>(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());
|
|
VMap[J] = DestI++;
|
|
}
|
|
|
|
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));
|
|
}
|
|
|
|
// 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;
|
|
}
|