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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2030 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-03-29 03:40:25 +00:00
parent 0d461f7f09
commit a637859c71
1 changed files with 26 additions and 30 deletions
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56
lib/Transforms/IPO/MutateStructTypes.cpp
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@ -14,7 +14,7 @@
#include "llvm/Transforms/IPO/MutateStructTypes.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Module.h"
#include "llvm/Method.h"
#include "llvm/Function.h"
#include "llvm/GlobalVariable.h"
#include "llvm/SymbolTable.h"
#include "llvm/iPHINode.h"
@ -66,16 +66,16 @@ const Type *MutateStructTypes::ConvertType(const Type *Ty) {
TypeMap.insert(std::make_pair(Ty, PlaceHolder.get()));
switch (Ty->getPrimitiveID()) {
case Type::MethodTyID: {
const MethodType *MT = cast<MethodType>(Ty);
case Type::FunctionTyID: {
const FunctionType *MT = cast<FunctionType>(Ty);
const Type *RetTy = ConvertType(MT->getReturnType());
vector<const Type*> ArgTypes;
for (MethodType::ParamTypes::const_iterator I = MT->getParamTypes().begin(),
for (FunctionType::ParamTypes::const_iterator I = MT->getParamTypes().begin(),
E = MT->getParamTypes().end(); I != E; ++I)
ArgTypes.push_back(ConvertType(*I));
DestTy = MethodType::get(RetTy, ArgTypes, MT->isVarArg());
DestTy = FunctionType::get(RetTy, ArgTypes, MT->isVarArg());
break;
}
case Type::StructTyID: {
@ -160,7 +160,7 @@ Value *MutateStructTypes::ConvertValue(const Value *V) {
assert(0 && "Unable to convert constpool val of this type!");
}
// Check to see if this is an out of method reference first...
// Check to see if this is an out of function reference first...
if (GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
// Check to see if the value is in the map...
map<const GlobalValue*, GlobalValue*>::iterator I = GlobalMap.find(GV);
@ -253,26 +253,26 @@ void MutateStructTypes::clearTransforms() {
// module, converting them to their new type.
//
void MutateStructTypes::processGlobals(Module *M) {
// Loop through the methods in the module and create a new version of the
// method to contained the transformed code. Don't use an iterator, because
// Loop through the functions in the module and create a new version of the
// function to contained the transformed code. Don't use an iterator, because
// we will be adding values to the end of the vector, and it could be
// reallocated. Also, we don't want to process the values that we add.
//
unsigned NumMethods = M->size();
for (unsigned i = 0; i < NumMethods; ++i) {
Method *Meth = M->begin()[i];
unsigned NumFunctions = M->size();
for (unsigned i = 0; i < NumFunctions; ++i) {
Function *Meth = M->begin()[i];
if (!Meth->isExternal()) {
const MethodType *NewMTy =
cast<MethodType>(ConvertType(Meth->getMethodType()));
const FunctionType *NewMTy =
cast<FunctionType>(ConvertType(Meth->getFunctionType()));
// Create a new method to put stuff into...
Method *NewMeth = new Method(NewMTy, Meth->hasInternalLinkage(),
// Create a new function to put stuff into...
Function *NewMeth = new Function(NewMTy, Meth->hasInternalLinkage(),
Meth->getName());
if (Meth->hasName())
Meth->setName("OLD."+Meth->getName());
// Insert the new method into the method list... to be filled in later...
// Insert the new function into the method list... to be filled in later..
M->getFunctionList().push_back(NewMeth);
// Keep track of the association...
@ -302,19 +302,15 @@ void MutateStructTypes::processGlobals(Module *M) {
// removeDeadGlobals - For this pass, all this does is remove the old versions
// of the methods and global variables that we no longer need.
// of the functions and global variables that we no longer need.
void MutateStructTypes::removeDeadGlobals(Module *M) {
// The first half of the methods in the module have to go.
//unsigned NumMethods = M->size();
//unsigned NumGVars = M->gsize();
// Prepare for deletion of globals by dropping their interdependencies...
for(Module::iterator I = M->begin(); I != M->end(); ++I) {
if (GlobalMap.find(*I) != GlobalMap.end())
(*I)->Method::dropAllReferences();
(*I)->Function::dropAllReferences();
}
// Run through and delete the methods and global variables...
// Run through and delete the functions and global variables...
#if 0 // TODO: HANDLE GLOBAL VARIABLES
M->getGlobalList().delete_span(M->gbegin(), M->gbegin()+NumGVars/2);
#endif
@ -328,16 +324,16 @@ void MutateStructTypes::removeDeadGlobals(Module *M) {
// transformMethod - This transforms the instructions of the method to use the
// transformMethod - This transforms the instructions of the function to use the
// new types.
//
void MutateStructTypes::transformMethod(Method *m) {
const Method *M = m;
void MutateStructTypes::transformMethod(Function *m) {
const Function *M = m;
map<const GlobalValue*, GlobalValue*>::iterator GMI = GlobalMap.find(M);
if (GMI == GlobalMap.end())
return; // Do not affect one of our new methods that we are creating
return; // Do not affect one of our new functions that we are creating
Method *NewMeth = cast<Method>(GMI->second);
Function *NewMeth = cast<Function>(GMI->second);
// Okay, first order of business, create the arguments...
for (unsigned i = 0; i < M->getArgumentList().size(); ++i) {
@ -350,13 +346,13 @@ void MutateStructTypes::transformMethod(Method *m) {
// Loop over all of the basic blocks copying instructions over...
for (Method::const_iterator BBI = M->begin(), BBE = M->end(); BBI != BBE;
for (Function::const_iterator BBI = M->begin(), BBE = M->end(); BBI != BBE;
++BBI) {
// Create a new basic block and establish a mapping between the old and new
const BasicBlock *BB = *BBI;
BasicBlock *NewBB = cast<BasicBlock>(ConvertValue(BB));
NewMeth->getBasicBlocks().push_back(NewBB); // Add block to method
NewMeth->getBasicBlocks().push_back(NewBB); // Add block to function
// Copy over all of the instructions in the basic block...
for (BasicBlock::const_iterator II = BB->begin(), IE = BB->end();