mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-29 10:32:47 +00:00
f8dfef7437
object is always constant. As such, evaluate it at compile time instead of storing it as an ivar in SymbolTableListTraits. This shrinks every SymbolTableListTraits ilist by a word, shrinking BasicBlock from 44->40 bytes, Function from 96->88 bytes, and Module from 60->52 bytes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36189 91177308-0d34-0410-b5e6-96231b3b80d8
77 lines
3.1 KiB
C++
77 lines
3.1 KiB
C++
//===-- llvm/SymbolTableListTraits.h - Traits for iplist --------*- C++ -*-===//
|
|
//
|
|
// 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 defines a generic class that is used to implement the automatic
|
|
// symbol table manipulation that occurs when you put (for example) a named
|
|
// instruction into a basic block.
|
|
//
|
|
// The way that this is implemented is by using a special traits class with the
|
|
// intrusive list that makes up the list of instructions in a basic block. When
|
|
// a new element is added to the list of instructions, the traits class is
|
|
// notified, allowing the symbol table to be updated.
|
|
//
|
|
// This generic class implements the traits class. It must be generic so that
|
|
// it can work for all uses it, which include lists of instructions, basic
|
|
// blocks, arguments, functions, global variables, etc...
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_SYMBOLTABLELISTTRAITS_H
|
|
#define LLVM_SYMBOLTABLELISTTRAITS_H
|
|
|
|
namespace llvm {
|
|
|
|
template<typename NodeTy> class ilist_iterator;
|
|
template<typename NodeTy, typename Traits> class iplist;
|
|
template<typename Ty> struct ilist_traits;
|
|
|
|
// ValueSubClass - The type of objects that I hold, e.g. Instruction.
|
|
// ItemParentType - The type of object that owns the list, e.g. BasicBlock.
|
|
// TraitBaseClass - The class this trait should inherit from, it should
|
|
// inherit from ilist_traits<ValueSubClass>
|
|
//
|
|
template<typename ValueSubClass, typename ItemParentClass>
|
|
class SymbolTableListTraits {
|
|
typedef ilist_traits<ValueSubClass> TraitsClass;
|
|
public:
|
|
SymbolTableListTraits() {}
|
|
|
|
/// getListOwner - Return the object that owns this list. If this is a list
|
|
/// of instructions, it returns the BasicBlock that owns them.
|
|
ItemParentClass *getListOwner() {
|
|
return reinterpret_cast<ItemParentClass*>((char*)this-
|
|
TraitsClass::getListOffset());
|
|
}
|
|
static ValueSubClass *getPrev(ValueSubClass *V) { return V->getPrev(); }
|
|
static ValueSubClass *getNext(ValueSubClass *V) { return V->getNext(); }
|
|
static const ValueSubClass *getPrev(const ValueSubClass *V) {
|
|
return V->getPrev();
|
|
}
|
|
static const ValueSubClass *getNext(const ValueSubClass *V) {
|
|
return V->getNext();
|
|
}
|
|
|
|
static void setPrev(ValueSubClass *V, ValueSubClass *P) { V->setPrev(P); }
|
|
static void setNext(ValueSubClass *V, ValueSubClass *N) { V->setNext(N); }
|
|
|
|
void addNodeToList(ValueSubClass *V);
|
|
void removeNodeFromList(ValueSubClass *V);
|
|
void transferNodesFromList(iplist<ValueSubClass,
|
|
ilist_traits<ValueSubClass> > &L2,
|
|
ilist_iterator<ValueSubClass> first,
|
|
ilist_iterator<ValueSubClass> last);
|
|
//private:
|
|
template<typename TPtr>
|
|
void setSymTabObject(TPtr *, TPtr);
|
|
};
|
|
|
|
} // End llvm namespace
|
|
|
|
#endif
|