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435 lines
12 KiB
C++
435 lines
12 KiB
C++
//===-- iConstPool.cpp - Implement ConstPool instructions --------*- C++ -*--=//
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//
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// This file implements the ConstPool* classes...
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//
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//===----------------------------------------------------------------------===//
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#define __STDC_LIMIT_MACROS // Get defs for INT64_MAX and friends...
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#include "llvm/ConstPoolVals.h"
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#include "llvm/ConstantPool.h"
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#include "llvm/Tools/StringExtras.h" // itostr
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#include "llvm/DerivedTypes.h"
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#include "llvm/SymbolTable.h"
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#include <algorithm>
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#include <assert.h>
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//===----------------------------------------------------------------------===//
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// ConstantPool Class
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//===----------------------------------------------------------------------===//
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void ConstantPool::setParent(SymTabValue *STV) {
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Parent = STV;
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for (unsigned i = 0; i < Planes.size(); i++)
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Planes[i]->setParent(Parent);
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}
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// Constant getPlane - Returns true if the type plane does not exist, otherwise
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// updates the pointer to point to the correct plane.
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//
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bool ConstantPool::getPlane(const Type *T, const PlaneType *&Plane) const {
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unsigned Ty = T->getUniqueID();
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if (Ty >= Planes.size()) return true;
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Plane = Planes[Ty];
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return false;
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}
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// Constant getPlane - Returns true if the type plane does not exist, otherwise
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// updates the pointer to point to the correct plane.
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//
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bool ConstantPool::getPlane(const Type *T, PlaneType *&Plane) {
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unsigned Ty = T->getUniqueID();
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if (Ty >= Planes.size()) return true;
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Plane = Planes[Ty];
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return false;
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}
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void ConstantPool::resize(unsigned size) {
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unsigned oldSize = Planes.size();
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Planes.resize(size, 0);
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while (oldSize < size)
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Planes[oldSize++] = new PlaneType(Parent, Parent);
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}
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ConstantPool::PlaneType &ConstantPool::getPlane(const Type *T) {
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unsigned Ty = T->getUniqueID();
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if (Ty >= Planes.size()) resize(Ty+1);
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return *Planes[Ty];
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}
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// insert - Add constant into the symbol table...
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void ConstantPool::insert(ConstPoolVal *N) {
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unsigned Ty = N->getType()->getUniqueID();
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if (Ty >= Planes.size()) resize(Ty+1);
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Planes[Ty]->push_back(N);
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}
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bool ConstantPool::remove(ConstPoolVal *N) {
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unsigned Ty = N->getType()->getUniqueID();
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if (Ty >= Planes.size()) return true; // Doesn't contain any of that type
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PlaneType::iterator I = ::find(Planes[Ty]->begin(), Planes[Ty]->end(), N);
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if (I == Planes[Ty]->end()) return true;
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Planes[Ty]->remove(I);
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return false;
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}
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void ConstantPool::delete_all() {
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dropAllReferences();
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for (unsigned i = 0; i < Planes.size(); i++) {
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Planes[i]->delete_all();
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Planes[i]->setParent(0);
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delete Planes[i];
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}
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Planes.clear();
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}
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void ConstantPool::dropAllReferences() {
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for (unsigned i = 0; i < Planes.size(); i++)
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for (PlaneType::iterator I = Planes[i]->begin();
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I != Planes[i]->end(); I++)
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(*I)->dropAllReferences();
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}
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struct EqualsConstant {
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const ConstPoolVal *v;
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inline EqualsConstant(const ConstPoolVal *V) { v = V; }
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inline bool operator()(const ConstPoolVal *V) const {
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return v->equals(V);
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}
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};
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ConstPoolVal *ConstantPool::find(const ConstPoolVal *V) {
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const PlaneType *P;
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if (getPlane(V->getType(), P)) return 0;
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PlaneType::const_iterator PI = find_if(P->begin(), P->end(),
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EqualsConstant(V));
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if (PI == P->end()) return 0;
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return *PI;
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}
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const ConstPoolVal *ConstantPool::find(const ConstPoolVal *V) const {
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const PlaneType *P;
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if (getPlane(V->getType(), P)) return 0;
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PlaneType::const_iterator PI = find_if(P->begin(), P->end(),
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EqualsConstant(V));
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if (PI == P->end()) return 0;
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return *PI;
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}
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ConstPoolVal *ConstantPool::find(const Type *Ty) {
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const PlaneType *P;
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if (getPlane(Type::TypeTy, P)) return 0;
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// TODO: This is kinda silly
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ConstPoolType V(Ty);
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PlaneType::const_iterator PI =
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find_if(P->begin(), P->end(), EqualsConstant(&V));
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if (PI == P->end()) return 0;
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return *PI;
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}
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const ConstPoolVal *ConstantPool::find(const Type *Ty) const {
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const PlaneType *P;
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if (getPlane(Type::TypeTy, P)) return 0;
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// TODO: This is kinda silly
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ConstPoolType V(Ty);
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PlaneType::const_iterator PI =
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find_if(P->begin(), P->end(), EqualsConstant(&V));
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if (PI == P->end()) return 0;
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return *PI;
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}
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//===----------------------------------------------------------------------===//
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// ConstPoolVal Class
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//===----------------------------------------------------------------------===//
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// Specialize setName to take care of symbol table majik
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void ConstPoolVal::setName(const string &name) {
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SymTabValue *P;
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if ((P = getParent()) && hasName()) P->getSymbolTable()->remove(this);
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Value::setName(name);
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if (P && hasName()) P->getSymbolTable()->insert(this);
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}
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// Static constructor to create a '0' constant of arbitrary type...
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ConstPoolVal *ConstPoolVal::getNullConstant(const Type *Ty) {
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switch (Ty->getPrimitiveID()) {
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case Type::BoolTyID: return new ConstPoolBool(false);
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case Type::SByteTyID:
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case Type::ShortTyID:
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case Type::IntTyID:
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case Type::LongTyID: return new ConstPoolSInt(Ty, 0);
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case Type::UByteTyID:
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case Type::UShortTyID:
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case Type::UIntTyID:
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case Type::ULongTyID: return new ConstPoolUInt(Ty, 0);
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case Type::FloatTyID:
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case Type::DoubleTyID: return new ConstPoolFP(Ty, 0);
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default:
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return 0;
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}
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}
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//===----------------------------------------------------------------------===//
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// ConstPoolXXX Classes
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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// Normal Constructors
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ConstPoolBool::ConstPoolBool(bool V, const string &Name = "")
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: ConstPoolVal(Type::BoolTy, Name) {
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Val = V;
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}
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ConstPoolSInt::ConstPoolSInt(const Type *Ty, int64_t V, const string &Name)
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: ConstPoolVal(Ty, Name) {
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//cerr << "value = " << (int)V << ": " << Ty->getName() << endl;
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assert(isValueValidForType(Ty, V) && "Value to large for type!");
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Val = V;
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}
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ConstPoolUInt::ConstPoolUInt(const Type *Ty, uint64_t V, const string &Name)
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: ConstPoolVal(Ty, Name) {
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//cerr << "Uvalue = " << (int)V << ": " << Ty->getName() << endl;
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assert(isValueValidForType(Ty, V) && "Value to large for type!");
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Val = V;
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}
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ConstPoolFP::ConstPoolFP(const Type *Ty, double V, const string &Name)
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: ConstPoolVal(Ty, Name) {
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assert(isValueValidForType(Ty, V) && "Value to large for type!");
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Val = V;
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}
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ConstPoolType::ConstPoolType(const Type *V, const string &Name)
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: ConstPoolVal(Type::TypeTy, Name), Val(V) {
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}
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ConstPoolArray::ConstPoolArray(const ArrayType *T,
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vector<ConstPoolVal*> &V,
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const string &Name)
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: ConstPoolVal(T, Name) {
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for (unsigned i = 0; i < V.size(); i++) {
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assert(V[i]->getType() == T->getElementType());
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Val.push_back(ConstPoolUse(V[i], this));
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}
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}
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ConstPoolStruct::ConstPoolStruct(const StructType *T,
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vector<ConstPoolVal*> &V,
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const string &Name)
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: ConstPoolVal(T, Name) {
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const StructType::ElementTypes &ETypes = T->getElementTypes();
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for (unsigned i = 0; i < V.size(); i++) {
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assert(V[i]->getType() == ETypes[i]);
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Val.push_back(ConstPoolUse(V[i], this));
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}
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}
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//===----------------------------------------------------------------------===//
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// Copy Constructors
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ConstPoolBool::ConstPoolBool(const ConstPoolBool &CPB)
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: ConstPoolVal(Type::BoolTy) {
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Val = CPB.Val;
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}
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ConstPoolSInt::ConstPoolSInt(const ConstPoolSInt &CPSI)
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: ConstPoolVal(CPSI.getType()) {
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Val = CPSI.Val;
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}
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ConstPoolUInt::ConstPoolUInt(const ConstPoolUInt &CPUI)
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: ConstPoolVal(CPUI.getType()) {
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Val = CPUI.Val;
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}
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ConstPoolFP::ConstPoolFP(const ConstPoolFP &CPFP)
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: ConstPoolVal(CPFP.getType()) {
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Val = CPFP.Val;
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}
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ConstPoolType::ConstPoolType(const ConstPoolType &CPT)
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: ConstPoolVal(Type::TypeTy), Val(CPT.Val) {
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}
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ConstPoolArray::ConstPoolArray(const ConstPoolArray &CPA)
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: ConstPoolVal(CPA.getType()) {
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for (unsigned i = 0; i < CPA.Val.size(); i++)
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Val.push_back(ConstPoolUse((ConstPoolVal*)CPA.Val[i], this));
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}
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ConstPoolStruct::ConstPoolStruct(const ConstPoolStruct &CPS)
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: ConstPoolVal(CPS.getType()) {
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for (unsigned i = 0; i < CPS.Val.size(); i++)
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Val.push_back(ConstPoolUse((ConstPoolVal*)CPS.Val[i], this));
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}
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//===----------------------------------------------------------------------===//
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// getStrValue implementations
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string ConstPoolBool::getStrValue() const {
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if (Val)
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return "true";
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else
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return "false";
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}
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string ConstPoolSInt::getStrValue() const {
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return itostr(Val);
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}
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string ConstPoolUInt::getStrValue() const {
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return utostr(Val);
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}
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string ConstPoolFP::getStrValue() const {
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assert(0 && "FP Constants Not implemented yet!!!!!!!!!!!");
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return "% FP Constants NI!" /* + dtostr(Val)*/;
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}
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string ConstPoolType::getStrValue() const {
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return Val->getName();
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}
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string ConstPoolArray::getStrValue() const {
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string Result = "[";
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if (Val.size()) {
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Result += " " + Val[0]->getType()->getName() +
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" " + Val[0]->getStrValue();
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for (unsigned i = 1; i < Val.size(); i++)
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Result += ", " + Val[i]->getType()->getName() +
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" " + Val[i]->getStrValue();
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}
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return Result + " ]";
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}
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string ConstPoolStruct::getStrValue() const {
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string Result = "{";
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if (Val.size()) {
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Result += " " + Val[0]->getType()->getName() +
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" " + Val[0]->getStrValue();
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for (unsigned i = 1; i < Val.size(); i++)
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Result += ", " + Val[i]->getType()->getName() +
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" " + Val[i]->getStrValue();
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}
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return Result + " }";
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}
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//===----------------------------------------------------------------------===//
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// equals implementations
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bool ConstPoolBool::equals(const ConstPoolVal *V) const {
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assert(getType() == V->getType());
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return ((ConstPoolBool*)V)->getValue() == Val;
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}
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bool ConstPoolSInt::equals(const ConstPoolVal *V) const {
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assert(getType() == V->getType());
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return ((ConstPoolSInt*)V)->getValue() == Val;
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}
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bool ConstPoolUInt::equals(const ConstPoolVal *V) const {
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assert(getType() == V->getType());
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return ((ConstPoolUInt*)V)->getValue() == Val;
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}
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bool ConstPoolFP::equals(const ConstPoolVal *V) const {
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assert(getType() == V->getType());
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return ((ConstPoolFP*)V)->getValue() == Val;
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}
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bool ConstPoolType::equals(const ConstPoolVal *V) const {
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assert(getType() == V->getType());
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return ((ConstPoolType*)V)->getValue() == Val;
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}
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bool ConstPoolArray::equals(const ConstPoolVal *V) const {
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assert(getType() == V->getType());
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ConstPoolArray *AV = (ConstPoolArray*)V;
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if (Val.size() != AV->Val.size()) return false;
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for (unsigned i = 0; i < Val.size(); i++)
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if (!Val[i]->equals(AV->Val[i])) return false;
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return true;
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}
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bool ConstPoolStruct::equals(const ConstPoolVal *V) const {
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assert(getType() == V->getType());
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ConstPoolStruct *SV = (ConstPoolStruct*)V;
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if (Val.size() != SV->Val.size()) return false;
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for (unsigned i = 0; i < Val.size(); i++)
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if (!Val[i]->equals(SV->Val[i])) return false;
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return true;
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}
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//===----------------------------------------------------------------------===//
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// isValueValidForType implementations
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bool ConstPoolSInt::isValueValidForType(const Type *Ty, int64_t Val) {
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switch (Ty->getPrimitiveID()) {
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default:
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return false; // These can't be represented as integers!!!
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// Signed types...
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case Type::SByteTyID:
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return (Val <= INT8_MAX && Val >= INT8_MIN);
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case Type::ShortTyID:
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return (Val <= INT16_MAX && Val >= INT16_MIN);
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case Type::IntTyID:
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return (Val <= INT32_MAX && Val >= INT32_MIN);
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case Type::LongTyID:
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return true; // This is the largest type...
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}
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assert(0 && "WTF?");
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return false;
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}
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bool ConstPoolUInt::isValueValidForType(const Type *Ty, uint64_t Val) {
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switch (Ty->getPrimitiveID()) {
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default:
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return false; // These can't be represented as integers!!!
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// Unsigned types...
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case Type::UByteTyID:
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return (Val <= UINT8_MAX);
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case Type::UShortTyID:
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return (Val <= UINT16_MAX);
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case Type::UIntTyID:
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return (Val <= UINT32_MAX);
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case Type::ULongTyID:
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return true; // This is the largest type...
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}
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assert(0 && "WTF?");
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return false;
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}
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bool ConstPoolFP::isValueValidForType(const Type *Ty, double Val) {
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switch (Ty->getPrimitiveID()) {
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default:
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return false; // These can't be represented as floating point!
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// TODO: Figure out how to test if a double can be cast to a float!
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/*
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case Type::FloatTyID:
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return (Val <= UINT8_MAX);
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*/
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case Type::DoubleTyID:
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return true; // This is the largest type...
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}
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};
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