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rearrange code and make more legible.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54976 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2008-08-19 04:36:02 +00:00
parent b64871a6ad
commit 6ab910b946
1 changed files with 336 additions and 307 deletions
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521
lib/VMCore/AsmWriter.cpp
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@ -40,78 +40,6 @@ using namespace llvm;
// Make virtual table appear in this compilation unit.
AssemblyAnnotationWriter::~AssemblyAnnotationWriter() {}
namespace {
/// This class provides computation of slot numbers for LLVM Assembly writing.
///
class SlotTracker {
public:
/// ValueMap - A mapping of Values to slot numbers
typedef DenseMap<const Value*, unsigned> ValueMap;
private:
/// TheModule - The module for which we are holding slot numbers
const Module* TheModule;
/// TheFunction - The function for which we are holding slot numbers
const Function* TheFunction;
bool FunctionProcessed;
/// mMap - The TypePlanes map for the module level data
ValueMap mMap;
unsigned mNext;
/// fMap - The TypePlanes map for the function level data
ValueMap fMap;
unsigned fNext;
public:
/// Construct from a module
explicit SlotTracker(const Module *M);
/// Construct from a function, starting out in incorp state.
explicit SlotTracker(const Function *F);
/// Return the slot number of the specified value in it's type
/// plane. If something is not in the SlotTracker, return -1.
int getLocalSlot(const Value *V);
int getGlobalSlot(const GlobalValue *V);
/// If you'd like to deal with a function instead of just a module, use
/// this method to get its data into the SlotTracker.
void incorporateFunction(const Function *F) {
TheFunction = F;
FunctionProcessed = false;
}
/// After calling incorporateFunction, use this method to remove the
/// most recently incorporated function from the SlotTracker. This
/// will reset the state of the machine back to just the module contents.
void purgeFunction();
// Implementation Details
private:
/// This function does the actual initialization.
inline void initialize();
/// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
void CreateModuleSlot(const GlobalValue *V);
/// CreateFunctionSlot - Insert the specified Value* into the slot table.
void CreateFunctionSlot(const Value *V);
/// Add all of the module level global variables (and their initializers)
/// and function declarations, but not the contents of those functions.
void processModule();
/// Add all of the functions arguments, basic blocks, and instructions
void processFunction();
SlotTracker(const SlotTracker &); // DO NOT IMPLEMENT
void operator=(const SlotTracker &); // DO NOT IMPLEMENT
};
} // end anonymous namespace
char PrintModulePass::ID = 0;
static RegisterPass<PrintModulePass>
X("printm", "Print module to stderr");
@ -119,39 +47,28 @@ char PrintFunctionPass::ID = 0;
static RegisterPass<PrintFunctionPass>
Y("print","Print function to stderr");
static void WriteAsOperandInternal(std::ostream &Out, const Value *V,
std::map<const Type *, std::string> &TypeTable,
SlotTracker *Machine);
//===----------------------------------------------------------------------===//
// Helper Functions
//===----------------------------------------------------------------------===//
static const Module *getModuleFromVal(const Value *V) {
if (const Argument *MA = dyn_cast<Argument>(V))
return MA->getParent() ? MA->getParent()->getParent() : 0;
else if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
return BB->getParent() ? BB->getParent()->getParent() : 0;
else if (const Instruction *I = dyn_cast<Instruction>(V)) {
if (const Instruction *I = dyn_cast<Instruction>(V)) {
const Function *M = I->getParent() ? I->getParent()->getParent() : 0;
return M ? M->getParent() : 0;
} else if (const GlobalValue *GV = dyn_cast<GlobalValue>(V))
}
if (const GlobalValue *GV = dyn_cast<GlobalValue>(V))
return GV->getParent();
return 0;
}
static SlotTracker *createSlotTracker(const Value *V) {
if (const Argument *FA = dyn_cast<Argument>(V)) {
return new SlotTracker(FA->getParent());
} else if (const Instruction *I = dyn_cast<Instruction>(V)) {
return new SlotTracker(I->getParent()->getParent());
} else if (const BasicBlock *BB = dyn_cast<BasicBlock>(V)) {
return new SlotTracker(BB->getParent());
} else if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(V)){
return new SlotTracker(GV->getParent());
} else if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(V)){
return new SlotTracker(GA->getParent());
} else if (const Function *Func = dyn_cast<Function>(V)) {
return new SlotTracker(Func);
}
return 0;
}
/// NameNeedsQuotes - Return true if the specified llvm name should be wrapped
/// with ""'s.
@ -268,12 +185,276 @@ static void PrintLLVMName(std::ostream &OS, const ValueName *Name,
OS << '"';
}
/// PrintLLVMName - Turn the specified name into an 'LLVM name', which is either
/// prefixed with % (if the string only contains simple characters) or is
/// surrounded with ""'s (if it has special chars in it). Print it out.
static void PrintLLVMName(std::ostream &OS, const Value *V) {
PrintLLVMName(OS, V->getValueName(),
isa<GlobalValue>(V) ? GlobalPrefix : LocalPrefix);
}
//===----------------------------------------------------------------------===//
// SlotTracker Class: Enumerate slot numbers for unnamed values
//===----------------------------------------------------------------------===//
namespace {
/// This class provides computation of slot numbers for LLVM Assembly writing.
///
class SlotTracker {
public:
/// ValueMap - A mapping of Values to slot numbers
typedef DenseMap<const Value*, unsigned> ValueMap;
private:
/// TheModule - The module for which we are holding slot numbers
const Module* TheModule;
/// TheFunction - The function for which we are holding slot numbers
const Function* TheFunction;
bool FunctionProcessed;
/// mMap - The TypePlanes map for the module level data
ValueMap mMap;
unsigned mNext;
/// fMap - The TypePlanes map for the function level data
ValueMap fMap;
unsigned fNext;
public:
/// Construct from a module
explicit SlotTracker(const Module *M);
/// Construct from a function, starting out in incorp state.
explicit SlotTracker(const Function *F);
/// Return the slot number of the specified value in it's type
/// plane. If something is not in the SlotTracker, return -1.
int getLocalSlot(const Value *V);
int getGlobalSlot(const GlobalValue *V);
/// If you'd like to deal with a function instead of just a module, use
/// this method to get its data into the SlotTracker.
void incorporateFunction(const Function *F) {
TheFunction = F;
FunctionProcessed = false;
}
/// After calling incorporateFunction, use this method to remove the
/// most recently incorporated function from the SlotTracker. This
/// will reset the state of the machine back to just the module contents.
void purgeFunction();
// Implementation Details
private:
/// This function does the actual initialization.
inline void initialize();
/// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
void CreateModuleSlot(const GlobalValue *V);
/// CreateFunctionSlot - Insert the specified Value* into the slot table.
void CreateFunctionSlot(const Value *V);
/// Add all of the module level global variables (and their initializers)
/// and function declarations, but not the contents of those functions.
void processModule();
/// Add all of the functions arguments, basic blocks, and instructions
void processFunction();
SlotTracker(const SlotTracker &); // DO NOT IMPLEMENT
void operator=(const SlotTracker &); // DO NOT IMPLEMENT
};
} // end anonymous namespace
static SlotTracker *createSlotTracker(const Value *V) {
if (const Argument *FA = dyn_cast<Argument>(V))
return new SlotTracker(FA->getParent());
if (const Instruction *I = dyn_cast<Instruction>(V))
return new SlotTracker(I->getParent()->getParent());
if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
return new SlotTracker(BB->getParent());
if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(V))
return new SlotTracker(GV->getParent());
if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(V))
return new SlotTracker(GA->getParent());
if (const Function *Func = dyn_cast<Function>(V))
return new SlotTracker(Func);
return 0;
}
#if 0
#define SC_DEBUG(X) cerr << X
#else
#define SC_DEBUG(X)
#endif
// Module level constructor. Causes the contents of the Module (sans functions)
// to be added to the slot table.
SlotTracker::SlotTracker(const Module *M)
: TheModule(M) ///< Saved for lazy initialization.
, TheFunction(0)
, FunctionProcessed(false)
, mNext(0), fNext(0)
{
}
// Function level constructor. Causes the contents of the Module and the one
// function provided to be added to the slot table.
SlotTracker::SlotTracker(const Function *F)
: TheModule(F ? F->getParent() : 0) ///< Saved for lazy initialization
, TheFunction(F) ///< Saved for lazy initialization
, FunctionProcessed(false)
, mNext(0), fNext(0)
{
}
inline void SlotTracker::initialize() {
if (TheModule) {
processModule();
TheModule = 0; ///< Prevent re-processing next time we're called.
}
if (TheFunction && !FunctionProcessed)
processFunction();
}
// Iterate through all the global variables, functions, and global
// variable initializers and create slots for them.
void SlotTracker::processModule() {
SC_DEBUG("begin processModule!\n");
// Add all of the unnamed global variables to the value table.
for (Module::const_global_iterator I = TheModule->global_begin(),
E = TheModule->global_end(); I != E; ++I)
if (!I->hasName())
CreateModuleSlot(I);
// Add all the unnamed functions to the table.
for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
I != E; ++I)
if (!I->hasName())
CreateModuleSlot(I);
SC_DEBUG("end processModule!\n");
}
// Process the arguments, basic blocks, and instructions of a function.
void SlotTracker::processFunction() {
SC_DEBUG("begin processFunction!\n");
fNext = 0;
// Add all the function arguments with no names.
for(Function::const_arg_iterator AI = TheFunction->arg_begin(),
AE = TheFunction->arg_end(); AI != AE; ++AI)
if (!AI->hasName())
CreateFunctionSlot(AI);
SC_DEBUG("Inserting Instructions:\n");
// Add all of the basic blocks and instructions with no names.
for (Function::const_iterator BB = TheFunction->begin(),
E = TheFunction->end(); BB != E; ++BB) {
if (!BB->hasName())
CreateFunctionSlot(BB);
for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I)
if (I->getType() != Type::VoidTy && !I->hasName())
CreateFunctionSlot(I);
}
FunctionProcessed = true;
SC_DEBUG("end processFunction!\n");
}
/// Clean up after incorporating a function. This is the only way to get out of
/// the function incorporation state that affects get*Slot/Create*Slot. Function
/// incorporation state is indicated by TheFunction != 0.
void SlotTracker::purgeFunction() {
SC_DEBUG("begin purgeFunction!\n");
fMap.clear(); // Simply discard the function level map
TheFunction = 0;
FunctionProcessed = false;
SC_DEBUG("end purgeFunction!\n");
}
/// getGlobalSlot - Get the slot number of a global value.
int SlotTracker::getGlobalSlot(const GlobalValue *V) {
// Check for uninitialized state and do lazy initialization.
initialize();
// Find the type plane in the module map
ValueMap::iterator MI = mMap.find(V);
return MI == mMap.end() ? -1 : MI->second;
}
/// getLocalSlot - Get the slot number for a value that is local to a function.
int SlotTracker::getLocalSlot(const Value *V) {
assert(!isa<Constant>(V) && "Can't get a constant or global slot with this!");
// Check for uninitialized state and do lazy initialization.
initialize();
ValueMap::iterator FI = fMap.find(V);
return FI == fMap.end() ? -1 : FI->second;
}
/// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
void SlotTracker::CreateModuleSlot(const GlobalValue *V) {
assert(V && "Can't insert a null Value into SlotTracker!");
assert(V->getType() != Type::VoidTy && "Doesn't need a slot!");
assert(!V->hasName() && "Doesn't need a slot!");
unsigned DestSlot = mNext++;
mMap[V] = DestSlot;
SC_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
DestSlot << " [");
// G = Global, F = Function, A = Alias, o = other
SC_DEBUG((isa<GlobalVariable>(V) ? 'G' :
(isa<Function>(V) ? 'F' :
(isa<GlobalAlias>(V) ? 'A' : 'o'))) << "]\n");
}
/// CreateSlot - Create a new slot for the specified value if it has no name.
void SlotTracker::CreateFunctionSlot(const Value *V) {
assert(V->getType() != Type::VoidTy && !V->hasName() &&
"Doesn't need a slot!");
unsigned DestSlot = fNext++;
fMap[V] = DestSlot;
// G = Global, F = Function, o = other
SC_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
DestSlot << " [o]\n");
}
//===----------------------------------------------------------------------===//
// AsmWriter Implementation
//===----------------------------------------------------------------------===//
static void WriteAsOperandInternal(std::ostream &Out, const Value *V,
std::map<const Type *, std::string> &TypeTable,
SlotTracker *Machine);
/// fillTypeNameTable - If the module has a symbol table, take all global types
/// and stuff their names into the TypeNames map.
///
@ -1585,155 +1766,3 @@ void Value::dump() const { print(*cerr.stream()); cerr << '\n'; }
// Located here because so much of the needed functionality is here.
void Type::dump() const { print(*cerr.stream()); cerr << '\n'; }
//===----------------------------------------------------------------------===//
// SlotTracker Implementation
//===----------------------------------------------------------------------===//
#if 0
#define SC_DEBUG(X) cerr << X
#else
#define SC_DEBUG(X)
#endif
// Module level constructor. Causes the contents of the Module (sans functions)
// to be added to the slot table.
SlotTracker::SlotTracker(const Module *M)
: TheModule(M) ///< Saved for lazy initialization.
, TheFunction(0)
, FunctionProcessed(false)
, mNext(0), fNext(0)
{
}
// Function level constructor. Causes the contents of the Module and the one
// function provided to be added to the slot table.
SlotTracker::SlotTracker(const Function *F)
: TheModule(F ? F->getParent() : 0) ///< Saved for lazy initialization
, TheFunction(F) ///< Saved for lazy initialization
, FunctionProcessed(false)
, mNext(0), fNext(0)
{
}
inline void SlotTracker::initialize() {
if (TheModule) {
processModule();
TheModule = 0; ///< Prevent re-processing next time we're called.
}
if (TheFunction && !FunctionProcessed)
processFunction();
}
// Iterate through all the global variables, functions, and global
// variable initializers and create slots for them.
void SlotTracker::processModule() {
SC_DEBUG("begin processModule!\n");
// Add all of the unnamed global variables to the value table.
for (Module::const_global_iterator I = TheModule->global_begin(),
E = TheModule->global_end(); I != E; ++I)
if (!I->hasName())
CreateModuleSlot(I);
// Add all the unnamed functions to the table.
for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
I != E; ++I)
if (!I->hasName())
CreateModuleSlot(I);
SC_DEBUG("end processModule!\n");
}
// Process the arguments, basic blocks, and instructions of a function.
void SlotTracker::processFunction() {
SC_DEBUG("begin processFunction!\n");
fNext = 0;
// Add all the function arguments with no names.
for(Function::const_arg_iterator AI = TheFunction->arg_begin(),
AE = TheFunction->arg_end(); AI != AE; ++AI)
if (!AI->hasName())
CreateFunctionSlot(AI);
SC_DEBUG("Inserting Instructions:\n");
// Add all of the basic blocks and instructions with no names.
for (Function::const_iterator BB = TheFunction->begin(),
E = TheFunction->end(); BB != E; ++BB) {
if (!BB->hasName())
CreateFunctionSlot(BB);
for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I)
if (I->getType() != Type::VoidTy && !I->hasName())
CreateFunctionSlot(I);
}
FunctionProcessed = true;
SC_DEBUG("end processFunction!\n");
}
/// Clean up after incorporating a function. This is the only way to get out of
/// the function incorporation state that affects get*Slot/Create*Slot. Function
/// incorporation state is indicated by TheFunction != 0.
void SlotTracker::purgeFunction() {
SC_DEBUG("begin purgeFunction!\n");
fMap.clear(); // Simply discard the function level map
TheFunction = 0;
FunctionProcessed = false;
SC_DEBUG("end purgeFunction!\n");
}
/// getGlobalSlot - Get the slot number of a global value.
int SlotTracker::getGlobalSlot(const GlobalValue *V) {
// Check for uninitialized state and do lazy initialization.
initialize();
// Find the type plane in the module map
ValueMap::iterator MI = mMap.find(V);
return MI == mMap.end() ? -1 : MI->second;
}
/// getLocalSlot - Get the slot number for a value that is local to a function.
int SlotTracker::getLocalSlot(const Value *V) {
assert(!isa<Constant>(V) && "Can't get a constant or global slot with this!");
// Check for uninitialized state and do lazy initialization.
initialize();
ValueMap::iterator FI = fMap.find(V);
return FI == fMap.end() ? -1 : FI->second;
}
/// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
void SlotTracker::CreateModuleSlot(const GlobalValue *V) {
assert(V && "Can't insert a null Value into SlotTracker!");
assert(V->getType() != Type::VoidTy && "Doesn't need a slot!");
assert(!V->hasName() && "Doesn't need a slot!");
unsigned DestSlot = mNext++;
mMap[V] = DestSlot;
SC_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
DestSlot << " [");
// G = Global, F = Function, A = Alias, o = other
SC_DEBUG((isa<GlobalVariable>(V) ? 'G' :
(isa<Function>(V) ? 'F' :
(isa<GlobalAlias>(V) ? 'A' : 'o'))) << "]\n");
}
/// CreateSlot - Create a new slot for the specified value if it has no name.
void SlotTracker::CreateFunctionSlot(const Value *V) {
assert(V->getType() != Type::VoidTy && !V->hasName() &&
"Doesn't need a slot!");
unsigned DestSlot = fNext++;
fMap[V] = DestSlot;
// G = Global, F = Function, o = other
SC_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
DestSlot << " [o]\n");
}