diff options
author | John Criswell <criswell@uiuc.edu> | 2005-11-02 18:05:50 +0000 |
---|---|---|
committer | John Criswell <criswell@uiuc.edu> | 2005-11-02 18:05:50 +0000 |
commit | cfa435f79bf39fead32263a8b71c9ae440b55214 (patch) | |
tree | 2f1ef0a4c3fb5549b8bbb014891f92866d46e042 /lib/Transforms/Utils/CloneModule.cpp |
Mark these as failing on sparc instead of sparcv9.
The configure script no longer tells us that we're configuring for SparcV9
specifically.
2004-06-17-UnorderedCompares may work on SparcV8, but it's experiental
anyway.
2005-02-20-AggregateSAVEEXPR should fail on any Solaris machine, as Solaris
doesn't provide complex number support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_16@24155 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Utils/CloneModule.cpp')
-rw-r--r-- | lib/Transforms/Utils/CloneModule.cpp | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/lib/Transforms/Utils/CloneModule.cpp b/lib/Transforms/Utils/CloneModule.cpp new file mode 100644 index 0000000000..309b280cc0 --- /dev/null +++ b/lib/Transforms/Utils/CloneModule.cpp @@ -0,0 +1,100 @@ +//===- CloneModule.cpp - Clone an entire module ---------------------------===// +// +// 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 implements the CloneModule interface which makes a copy of an +// entire module. +// +//===----------------------------------------------------------------------===// + +#include "llvm/Transforms/Utils/Cloning.h" +#include "llvm/Module.h" +#include "llvm/DerivedTypes.h" +#include "llvm/SymbolTable.h" +#include "llvm/Constant.h" +#include "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) { + // First off, we need to create the new module... + Module *New = new Module(M->getModuleIdentifier()); + New->setEndianness(M->getEndianness()); + New->setPointerSize(M->getPointerSize()); + + // Copy all of the type symbol table entries over... + const SymbolTable &SymTab = M->getSymbolTable(); + SymbolTable::type_const_iterator TypeI = SymTab.type_begin(); + SymbolTable::type_const_iterator TypeE = SymTab.type_end(); + for ( ; TypeI != TypeE; ++TypeI ) { + New->addTypeName(TypeI->first, TypeI->second); + } + + // Create the value map that maps things from the old module over to the new + // module. + std::map<const Value*, Value*> ValueMap; + + // 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 + // 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); + + // 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; + } + + // 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]); + if (I->hasInitializer()) + GV->setInitializer(cast<Constant>(MapValue(I->getInitializer(), + ValueMap))); + GV->setLinkage(I->getLinkage()); + } + + // 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]); + if (!I->isExternal()) { + 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++; + } + + std::vector<ReturnInst*> Returns; // Ignore returns cloned... + CloneFunctionInto(F, I, ValueMap, Returns); + } + + F->setLinkage(I->getLinkage()); + } + + return New; +} + +// vim: sw=2 |