mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-10-31 09:11:13 +00:00
8169cf810c
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7949 91177308-0d34-0410-b5e6-96231b3b80d8
251 lines
8.9 KiB
C++
251 lines
8.9 KiB
C++
//===-- Function.cpp - Implement the Global object classes -------*- C++ -*--=//
|
|
//
|
|
// This file implements the Function & GlobalVariable classes for the VMCore
|
|
// library.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Module.h"
|
|
#include "llvm/DerivedTypes.h"
|
|
#include "llvm/iOther.h"
|
|
#include "llvm/Intrinsics.h"
|
|
#include "Support/LeakDetector.h"
|
|
#include "SymbolTableListTraitsImpl.h"
|
|
|
|
BasicBlock *ilist_traits<BasicBlock>::createNode() {
|
|
BasicBlock *Ret = new BasicBlock();
|
|
// This should not be garbage monitored.
|
|
LeakDetector::removeGarbageObject(Ret);
|
|
return Ret;
|
|
}
|
|
|
|
iplist<BasicBlock> &ilist_traits<BasicBlock>::getList(Function *F) {
|
|
return F->getBasicBlockList();
|
|
}
|
|
|
|
Argument *ilist_traits<Argument>::createNode() {
|
|
Argument *Ret = new Argument(Type::IntTy);
|
|
// This should not be garbage monitored.
|
|
LeakDetector::removeGarbageObject(Ret);
|
|
return Ret;
|
|
}
|
|
|
|
iplist<Argument> &ilist_traits<Argument>::getList(Function *F) {
|
|
return F->getArgumentList();
|
|
}
|
|
|
|
// Explicit instantiations of SymbolTableListTraits since some of the methods
|
|
// are not in the public header file...
|
|
template SymbolTableListTraits<Argument, Function, Function>;
|
|
template SymbolTableListTraits<BasicBlock, Function, Function>;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Argument Implementation
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
Argument::Argument(const Type *Ty, const std::string &Name, Function *Par)
|
|
: Value(Ty, Value::ArgumentVal, Name) {
|
|
Parent = 0;
|
|
|
|
// Make sure that we get added to a function
|
|
LeakDetector::addGarbageObject(this);
|
|
|
|
if (Par)
|
|
Par->getArgumentList().push_back(this);
|
|
}
|
|
|
|
|
|
// Specialize setName to take care of symbol table majik
|
|
void Argument::setName(const std::string &name, SymbolTable *ST) {
|
|
Function *P;
|
|
assert((ST == 0 || (!getParent() || ST == &getParent()->getSymbolTable())) &&
|
|
"Invalid symtab argument!");
|
|
if ((P = getParent()) && hasName()) P->getSymbolTable().remove(this);
|
|
Value::setName(name);
|
|
if (P && hasName()) P->getSymbolTable().insert(this);
|
|
}
|
|
|
|
void Argument::setParent(Function *parent) {
|
|
if (getParent())
|
|
LeakDetector::addGarbageObject(this);
|
|
Parent = parent;
|
|
if (getParent())
|
|
LeakDetector::removeGarbageObject(this);
|
|
}
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Function Implementation
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
Function::Function(const FunctionType *Ty, LinkageTypes Linkage,
|
|
const std::string &name, Module *ParentModule)
|
|
: GlobalValue(PointerType::get(Ty), Value::FunctionVal, Linkage, name) {
|
|
BasicBlocks.setItemParent(this);
|
|
BasicBlocks.setParent(this);
|
|
ArgumentList.setItemParent(this);
|
|
ArgumentList.setParent(this);
|
|
SymTab = new SymbolTable();
|
|
|
|
// Create the arguments vector, all arguments start out unnamed.
|
|
for (unsigned i = 0, e = Ty->getNumParams(); i != e; ++i) {
|
|
assert(Ty->getParamType(i) != Type::VoidTy &&
|
|
"Cannot have void typed arguments!");
|
|
ArgumentList.push_back(new Argument(Ty->getParamType(i)));
|
|
}
|
|
|
|
// Make sure that we get added to a function
|
|
LeakDetector::addGarbageObject(this);
|
|
|
|
if (ParentModule)
|
|
ParentModule->getFunctionList().push_back(this);
|
|
}
|
|
|
|
Function::~Function() {
|
|
dropAllReferences(); // After this it is safe to delete instructions.
|
|
|
|
BasicBlocks.clear(); // Delete all basic blocks...
|
|
|
|
// Delete all of the method arguments and unlink from symbol table...
|
|
ArgumentList.clear();
|
|
ArgumentList.setParent(0);
|
|
delete SymTab;
|
|
}
|
|
|
|
// Specialize setName to take care of symbol table majik
|
|
void Function::setName(const std::string &name, SymbolTable *ST) {
|
|
Module *P;
|
|
assert((ST == 0 || (!getParent() || ST == &getParent()->getSymbolTable())) &&
|
|
"Invalid symtab argument!");
|
|
if ((P = getParent()) && hasName()) P->getSymbolTable().remove(this);
|
|
Value::setName(name);
|
|
if (P && getName() != "") P->getSymbolTable().insert(this);
|
|
}
|
|
|
|
void Function::setParent(Module *parent) {
|
|
if (getParent())
|
|
LeakDetector::addGarbageObject(this);
|
|
Parent = parent;
|
|
if (getParent())
|
|
LeakDetector::removeGarbageObject(this);
|
|
}
|
|
|
|
const FunctionType *Function::getFunctionType() const {
|
|
return cast<FunctionType>(getType()->getElementType());
|
|
}
|
|
|
|
const Type *Function::getReturnType() const {
|
|
return getFunctionType()->getReturnType();
|
|
}
|
|
|
|
// dropAllReferences() - This function causes all the subinstructions to "let
|
|
// go" of all references that they are maintaining. This allows one to
|
|
// 'delete' a whole class at a time, even though there may be circular
|
|
// references... first all references are dropped, and all use counts go to
|
|
// zero. Then everything is delete'd for real. Note that no operations are
|
|
// valid on an object that has "dropped all references", except operator
|
|
// delete.
|
|
//
|
|
void Function::dropAllReferences() {
|
|
for (iterator I = begin(), E = end(); I != E; ++I)
|
|
I->dropAllReferences();
|
|
}
|
|
|
|
/// getIntrinsicID - This method returns the ID number of the specified
|
|
/// function, or LLVMIntrinsic::not_intrinsic if the function is not an
|
|
/// instrinsic, or if the pointer is null. This value is always defined to be
|
|
/// zero to allow easy checking for whether a function is intrinsic or not. The
|
|
/// particular intrinsic functions which correspond to this value are defined in
|
|
/// llvm/Intrinsics.h.
|
|
///
|
|
unsigned Function::getIntrinsicID() const {
|
|
if (getName().size() <= 5 || getName()[4] != '.' || getName()[0] != 'l' ||
|
|
getName()[1] != 'l' || getName()[2] != 'v' || getName()[3] != 'm')
|
|
return 0; // All intrinsics start with 'llvm.'
|
|
|
|
// a table of all Alpha intrinsic functions
|
|
struct {
|
|
std::string name; // The name of the intrinsic
|
|
unsigned id; // Its ID number
|
|
} alpha_intrinsics[] = {
|
|
{ "llvm.alpha.ctlz", LLVMIntrinsic::alpha_ctlz },
|
|
{ "llvm.alpha.cttz", LLVMIntrinsic::alpha_cttz },
|
|
{ "llvm.alpha.ctpop", LLVMIntrinsic::alpha_ctpop },
|
|
{ "llvm.alpha.umulh", LLVMIntrinsic::alpha_umulh },
|
|
{ "llvm.alpha.vecop", LLVMIntrinsic::alpha_vecop },
|
|
{ "llvm.alpha.pup", LLVMIntrinsic::alpha_pup },
|
|
{ "llvm.alpha.bytezap", LLVMIntrinsic::alpha_bytezap },
|
|
{ "llvm.alpha.bytemanip", LLVMIntrinsic::alpha_bytemanip },
|
|
{ "llvm.alpha.dfp_bop", LLVMIntrinsic::alpha_dfpbop },
|
|
{ "llvm.alpha.dfp_uop", LLVMIntrinsic::alpha_dfpuop },
|
|
{ "llvm.alpha.unordered", LLVMIntrinsic::alpha_unordered },
|
|
{ "llvm.alpha.uqtodfp", LLVMIntrinsic::alpha_uqtodfp },
|
|
{ "llvm.alpha.uqtosfp", LLVMIntrinsic::alpha_uqtosfp },
|
|
{ "llvm.alpha.dfptosq", LLVMIntrinsic::alpha_dfptosq },
|
|
{ "llvm.alpha.sfptosq", LLVMIntrinsic::alpha_sfptosq },
|
|
};
|
|
const unsigned num_alpha_intrinsics =
|
|
sizeof(alpha_intrinsics) / sizeof(*alpha_intrinsics);
|
|
|
|
switch (getName()[5]) {
|
|
case 'a':
|
|
for (unsigned i = 0; i < num_alpha_intrinsics; ++i) {
|
|
if (getName() == alpha_intrinsics[i].name)
|
|
return alpha_intrinsics[i].id;
|
|
}
|
|
break;
|
|
case 'l':
|
|
if (getName() == "llvm.longjmp") return LLVMIntrinsic::longjmp;
|
|
break;
|
|
case 's':
|
|
if (getName() == "llvm.setjmp") return LLVMIntrinsic::setjmp;
|
|
if (getName() == "llvm.sigsetjmp") return LLVMIntrinsic::sigsetjmp;
|
|
if (getName() == "llvm.siglongjmp") return LLVMIntrinsic::siglongjmp;
|
|
break;
|
|
case 'v':
|
|
if (getName() == "llvm.va_copy") return LLVMIntrinsic::va_copy;
|
|
if (getName() == "llvm.va_end") return LLVMIntrinsic::va_end;
|
|
if (getName() == "llvm.va_start") return LLVMIntrinsic::va_start;
|
|
break;
|
|
}
|
|
// The "llvm." namespace is reserved!
|
|
assert(0 && "Unknown LLVM intrinsic function!");
|
|
return 0;
|
|
}
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// GlobalVariable Implementation
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
GlobalVariable::GlobalVariable(const Type *Ty, bool constant, LinkageTypes Link,
|
|
Constant *Initializer,
|
|
const std::string &Name, Module *ParentModule)
|
|
: GlobalValue(PointerType::get(Ty), Value::GlobalVariableVal, Link, Name),
|
|
isConstantGlobal(constant) {
|
|
if (Initializer) Operands.push_back(Use((Value*)Initializer, this));
|
|
|
|
LeakDetector::addGarbageObject(this);
|
|
|
|
if (ParentModule)
|
|
ParentModule->getGlobalList().push_back(this);
|
|
}
|
|
|
|
void GlobalVariable::setParent(Module *parent) {
|
|
if (getParent())
|
|
LeakDetector::addGarbageObject(this);
|
|
Parent = parent;
|
|
if (getParent())
|
|
LeakDetector::removeGarbageObject(this);
|
|
}
|
|
|
|
// Specialize setName to take care of symbol table majik
|
|
void GlobalVariable::setName(const std::string &name, SymbolTable *ST) {
|
|
Module *P;
|
|
assert((ST == 0 || (!getParent() || ST == &getParent()->getSymbolTable())) &&
|
|
"Invalid symtab argument!");
|
|
if ((P = getParent()) && hasName()) P->getSymbolTable().remove(this);
|
|
Value::setName(name);
|
|
if (P && getName() != "") P->getSymbolTable().insert(this);
|
|
}
|