mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-30 02:32:08 +00:00
9aa4142dad
* Move Method::inst_* to new "llvm/Support/InstIterator.h" file * Method.h no longer #includes BasicBlock.h git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1743 91177308-0d34-0410-b5e6-96231b3b80d8
109 lines
4.5 KiB
C++
109 lines
4.5 KiB
C++
//===-- llvm/Method.h - Class to represent a single VM method ----*- C++ -*--=//
|
|
//
|
|
// This file contains the declaration of the Method class, which represents a
|
|
// single Method/function/procedure in the VM.
|
|
//
|
|
// Note that basic blocks themselves are Def's, because they are referenced
|
|
// by instructions like calls and can go in virtual function tables and stuff.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_METHOD_H
|
|
#define LLVM_METHOD_H
|
|
|
|
#include "llvm/SymTabValue.h"
|
|
#include "llvm/GlobalValue.h"
|
|
#include "llvm/ValueHolder.h"
|
|
|
|
class Instruction;
|
|
class BasicBlock;
|
|
class MethodArgument;
|
|
class MethodType;
|
|
class Module;
|
|
|
|
class Method : public GlobalValue, public SymTabValue {
|
|
public:
|
|
typedef ValueHolder<MethodArgument, Method, Method> ArgumentListType;
|
|
typedef ValueHolder<BasicBlock , Method, Method> BasicBlocksType;
|
|
|
|
// BasicBlock iterators...
|
|
typedef BasicBlocksType::iterator iterator;
|
|
typedef BasicBlocksType::const_iterator const_iterator;
|
|
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
|
|
typedef std::reverse_iterator<iterator> reverse_iterator;
|
|
|
|
private:
|
|
|
|
// Important things that make up a method!
|
|
BasicBlocksType BasicBlocks; // The basic blocks
|
|
ArgumentListType ArgumentList; // The formal arguments
|
|
|
|
friend class ValueHolder<Method, Module, Module>;
|
|
void setParent(Module *parent);
|
|
|
|
public:
|
|
Method(const MethodType *Ty, bool isInternal, const std::string &Name = "");
|
|
~Method();
|
|
|
|
// Specialize setName to handle symbol table majik...
|
|
virtual void setName(const std::string &name, SymbolTable *ST = 0);
|
|
|
|
const Type *getReturnType() const; // Return the return type of method
|
|
const MethodType *getMethodType() const; // Return the MethodType for me
|
|
|
|
// Is the body of this method unknown? (the basic block list is empty if so)
|
|
// this is true for external methods, defined as forward "declare"ations
|
|
bool isExternal() const { return BasicBlocks.empty(); }
|
|
|
|
// Get the underlying elements of the Method... both the argument list and
|
|
// basic block list are empty for external methods.
|
|
//
|
|
inline const ArgumentListType &getArgumentList() const{ return ArgumentList; }
|
|
inline ArgumentListType &getArgumentList() { return ArgumentList; }
|
|
|
|
inline const BasicBlocksType &getBasicBlocks() const { return BasicBlocks; }
|
|
inline BasicBlocksType &getBasicBlocks() { return BasicBlocks; }
|
|
|
|
inline const BasicBlock *getEntryNode() const { return front(); }
|
|
inline BasicBlock *getEntryNode() { return front(); }
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// BasicBlock iterator forwarding functions
|
|
//
|
|
inline iterator begin() { return BasicBlocks.begin(); }
|
|
inline const_iterator begin() const { return BasicBlocks.begin(); }
|
|
inline iterator end () { return BasicBlocks.end(); }
|
|
inline const_iterator end () const { return BasicBlocks.end(); }
|
|
|
|
inline reverse_iterator rbegin() { return BasicBlocks.rbegin(); }
|
|
inline const_reverse_iterator rbegin() const { return BasicBlocks.rbegin(); }
|
|
inline reverse_iterator rend () { return BasicBlocks.rend(); }
|
|
inline const_reverse_iterator rend () const { return BasicBlocks.rend(); }
|
|
|
|
inline unsigned size() const { return BasicBlocks.size(); }
|
|
inline bool empty() const { return BasicBlocks.empty(); }
|
|
inline const BasicBlock *front() const { return BasicBlocks.front(); }
|
|
inline BasicBlock *front() { return BasicBlocks.front(); }
|
|
inline const BasicBlock *back() const { return BasicBlocks.back(); }
|
|
inline BasicBlock *back() { return BasicBlocks.back(); }
|
|
|
|
|
|
// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const Method *T) { return true; }
|
|
static inline bool classof(const Value *V) {
|
|
return V->getValueType() == Value::MethodVal;
|
|
}
|
|
|
|
// 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 dropAllReferences();
|
|
};
|
|
|
|
#endif
|