mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-17 21:29:20 +00:00
* Cnstants are now global objects
* ConstantPools no longer exist * Constants are global objects in the LLVM system * Constants are structurally equilivant if they are pointer equilivant * Support abstract & opaque types * Support setName on constants even though they don't track names * Constnats don't get copy ctors anymore * ConstPoolVal::equals is no longer useful [use ptr equivalency] * Support generic factory classes to create and maintain constants git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@460 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
parent
6892b126e3
commit
531daef154
@ -6,199 +6,43 @@
|
||||
|
||||
#define __STDC_LIMIT_MACROS // Get defs for INT64_MAX and friends...
|
||||
#include "llvm/ConstPoolVals.h"
|
||||
#include "llvm/ConstantPool.h"
|
||||
#include "llvm/Support/StringExtras.h" // itostr
|
||||
#include "llvm/DerivedTypes.h"
|
||||
#include "llvm/SymbolTable.h"
|
||||
#include <algorithm>
|
||||
#include <assert.h>
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// ConstantPool Class
|
||||
//===----------------------------------------------------------------------===//
|
||||
ConstPoolBool *ConstPoolBool::True = new ConstPoolBool(true);
|
||||
ConstPoolBool *ConstPoolBool::False = new ConstPoolBool(false);
|
||||
|
||||
void ConstantPool::setParent(SymTabValue *STV) {
|
||||
Parent = STV;
|
||||
for (unsigned i = 0; i < Planes.size(); i++)
|
||||
Planes[i]->setParent(Parent);
|
||||
}
|
||||
|
||||
const Value *ConstantPool::getParentV() const { return Parent->getSTVParent(); }
|
||||
Value *ConstantPool::getParentV() { return Parent->getSTVParent(); }
|
||||
|
||||
|
||||
|
||||
// Constant getPlane - Returns true if the type plane does not exist, otherwise
|
||||
// updates the pointer to point to the correct plane.
|
||||
//
|
||||
bool ConstantPool::getPlane(const Type *T, const PlaneType *&Plane) const {
|
||||
unsigned Ty = T->getUniqueID();
|
||||
if (Ty >= Planes.size()) return true;
|
||||
Plane = Planes[Ty];
|
||||
return false;
|
||||
}
|
||||
|
||||
// Constant getPlane - Returns true if the type plane does not exist, otherwise
|
||||
// updates the pointer to point to the correct plane.
|
||||
//
|
||||
bool ConstantPool::getPlane(const Type *T, PlaneType *&Plane) {
|
||||
unsigned Ty = T->getUniqueID();
|
||||
if (Ty >= Planes.size()) return true;
|
||||
Plane = Planes[Ty];
|
||||
return false;
|
||||
}
|
||||
|
||||
void ConstantPool::resize(unsigned size) {
|
||||
unsigned oldSize = Planes.size();
|
||||
Planes.resize(size, 0);
|
||||
while (oldSize < size)
|
||||
Planes[oldSize++] = new PlaneType(Parent, Parent);
|
||||
}
|
||||
|
||||
ConstantPool::PlaneType &ConstantPool::getPlane(const Type *T) {
|
||||
unsigned Ty = T->getUniqueID();
|
||||
if (Ty >= Planes.size()) resize(Ty+1);
|
||||
return *Planes[Ty];
|
||||
}
|
||||
|
||||
// insert - Add constant into the symbol table...
|
||||
void ConstantPool::insert(ConstPoolVal *N) {
|
||||
unsigned Ty = N->getType()->getUniqueID();
|
||||
if (Ty >= Planes.size()) resize(Ty+1);
|
||||
Planes[Ty]->push_back(N);
|
||||
}
|
||||
|
||||
bool ConstantPool::remove(ConstPoolVal *N) {
|
||||
unsigned Ty = N->getType()->getUniqueID();
|
||||
if (Ty >= Planes.size()) return true; // Doesn't contain any of that type
|
||||
|
||||
PlaneType::iterator I = ::find(Planes[Ty]->begin(), Planes[Ty]->end(), N);
|
||||
if (I == Planes[Ty]->end()) return true;
|
||||
Planes[Ty]->remove(I);
|
||||
return false;
|
||||
}
|
||||
|
||||
void ConstantPool::delete_all() {
|
||||
dropAllReferences();
|
||||
for (unsigned i = 0; i < Planes.size(); i++) {
|
||||
Planes[i]->delete_all();
|
||||
Planes[i]->setParent(0);
|
||||
delete Planes[i];
|
||||
}
|
||||
Planes.clear();
|
||||
}
|
||||
|
||||
void ConstantPool::dropAllReferences() {
|
||||
for (unsigned i = 0; i < Planes.size(); i++)
|
||||
for_each(Planes[i]->begin(), Planes[i]->end(),
|
||||
mem_fun(&ConstPoolVal::dropAllReferences));
|
||||
}
|
||||
|
||||
struct EqualsConstant {
|
||||
const ConstPoolVal *v;
|
||||
inline EqualsConstant(const ConstPoolVal *V) { v = V; }
|
||||
inline bool operator()(const ConstPoolVal *V) const {
|
||||
return v->equals(V);
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
ConstPoolVal *ConstantPool::find(const ConstPoolVal *V) {
|
||||
const PlaneType *P;
|
||||
if (getPlane(V->getType(), P)) return 0;
|
||||
PlaneType::const_iterator PI = find_if(P->begin(), P->end(),
|
||||
EqualsConstant(V));
|
||||
if (PI == P->end()) return 0;
|
||||
return *PI;
|
||||
}
|
||||
|
||||
const ConstPoolVal *ConstantPool::find(const ConstPoolVal *V) const {
|
||||
const PlaneType *P;
|
||||
if (getPlane(V->getType(), P)) return 0;
|
||||
PlaneType::const_iterator PI = find_if(P->begin(), P->end(),
|
||||
EqualsConstant(V));
|
||||
if (PI == P->end()) return 0;
|
||||
return *PI;
|
||||
}
|
||||
|
||||
ConstPoolVal *ConstantPool::find(const Type *Ty) {
|
||||
const PlaneType *P;
|
||||
if (getPlane(Type::TypeTy, P)) return 0;
|
||||
|
||||
// TODO: This is kinda silly
|
||||
ConstPoolType V(Ty);
|
||||
|
||||
PlaneType::const_iterator PI =
|
||||
find_if(P->begin(), P->end(), EqualsConstant(&V));
|
||||
if (PI == P->end()) return 0;
|
||||
return *PI;
|
||||
}
|
||||
|
||||
const ConstPoolVal *ConstantPool::find(const Type *Ty) const {
|
||||
const PlaneType *P;
|
||||
if (getPlane(Type::TypeTy, P)) return 0;
|
||||
|
||||
// TODO: This is kinda silly
|
||||
ConstPoolType V(Ty);
|
||||
|
||||
PlaneType::const_iterator PI =
|
||||
find_if(P->begin(), P->end(), EqualsConstant(&V));
|
||||
if (PI == P->end()) return 0;
|
||||
return *PI;
|
||||
}
|
||||
|
||||
struct EqualsType {
|
||||
const Type *T;
|
||||
inline EqualsType(const Type *t) { T = t; }
|
||||
inline bool operator()(const ConstPoolVal *CPV) const {
|
||||
return static_cast<const ConstPoolType*>(CPV)->getValue() == T;
|
||||
}
|
||||
};
|
||||
|
||||
// ensureTypeAvailable - This is used to make sure that the specified type is
|
||||
// in the constant pool. If it is not already in the constant pool, it is
|
||||
// added.
|
||||
//
|
||||
const Type *ConstantPool::ensureTypeAvailable(const Type *Ty) {
|
||||
// Get the type type plane...
|
||||
PlaneType &P = getPlane(Type::TypeTy);
|
||||
PlaneType::const_iterator PI = find_if(P.begin(), P.end(), EqualsType(Ty));
|
||||
|
||||
if (PI == P.end()) {
|
||||
ConstPoolVal *CPT = new ConstPoolType(Ty);
|
||||
insert(CPT);
|
||||
}
|
||||
return Ty;
|
||||
}
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// ConstPoolVal Class
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
// Specialize setName to take care of symbol table majik
|
||||
void ConstPoolVal::setName(const string &name) {
|
||||
SymTabValue *P;
|
||||
if ((P = getParent()) && hasName()) P->getSymbolTable()->remove(this);
|
||||
Value::setName(name);
|
||||
if (P && hasName()) P->getSymbolTable()->insert(this);
|
||||
void ConstPoolVal::setName(const string &Name, SymbolTable *ST) {
|
||||
assert(ST && "Type::setName - Must provide symbol table argument!");
|
||||
|
||||
if (Name.size()) ST->insert(Name, this);
|
||||
}
|
||||
|
||||
// Static constructor to create a '0' constant of arbitrary type...
|
||||
ConstPoolVal *ConstPoolVal::getNullConstant(const Type *Ty) {
|
||||
switch (Ty->getPrimitiveID()) {
|
||||
case Type::BoolTyID: return new ConstPoolBool(false);
|
||||
case Type::BoolTyID: return ConstPoolBool::get(false);
|
||||
case Type::SByteTyID:
|
||||
case Type::ShortTyID:
|
||||
case Type::IntTyID:
|
||||
case Type::LongTyID: return new ConstPoolSInt(Ty, 0);
|
||||
case Type::LongTyID: return ConstPoolSInt::get(Ty, 0);
|
||||
|
||||
case Type::UByteTyID:
|
||||
case Type::UShortTyID:
|
||||
case Type::UIntTyID:
|
||||
case Type::ULongTyID: return new ConstPoolUInt(Ty, 0);
|
||||
case Type::ULongTyID: return ConstPoolUInt::get(Ty, 0);
|
||||
|
||||
case Type::FloatTyID:
|
||||
case Type::DoubleTyID: return new ConstPoolFP(Ty, 0);
|
||||
case Type::DoubleTyID: return ConstPoolFP::get(Ty, 0);
|
||||
default:
|
||||
return 0;
|
||||
}
|
||||
@ -213,59 +57,41 @@ ConstPoolVal *ConstPoolVal::getNullConstant(const Type *Ty) {
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Normal Constructors
|
||||
|
||||
ConstPoolBool::ConstPoolBool(bool V, const string &Name = "")
|
||||
: ConstPoolVal(Type::BoolTy, Name) {
|
||||
ConstPoolBool::ConstPoolBool(bool V) : ConstPoolVal(Type::BoolTy) {
|
||||
Val = V;
|
||||
}
|
||||
ConstPoolBool::ConstPoolBool(const Type *Ty, bool V, const string &Name = "")
|
||||
: ConstPoolVal(Type::BoolTy, Name) {
|
||||
Val = V;
|
||||
assert(Ty == Type::BoolTy && "BoolTy is only valid type for bool constant");
|
||||
|
||||
ConstPoolInt::ConstPoolInt(const Type *Ty, uint64_t V) : ConstPoolVal(Ty) {
|
||||
Val.Unsigned = V;
|
||||
}
|
||||
|
||||
ConstPoolInt::ConstPoolInt(const Type *Ty, uint64_t V, const string &Name)
|
||||
: ConstPoolVal(Ty, Name) { Val.Unsigned = V; }
|
||||
ConstPoolInt::ConstPoolInt(const Type *Ty, int64_t V, const string &Name)
|
||||
: ConstPoolVal(Ty, Name) { Val.Signed = V; }
|
||||
|
||||
ConstPoolSInt::ConstPoolSInt(const Type *Ty, int64_t V, const string &Name)
|
||||
: ConstPoolInt(Ty, V, Name) {
|
||||
//cerr << "value = " << (int)V << ": " << Ty->getName() << endl;
|
||||
ConstPoolSInt::ConstPoolSInt(const Type *Ty, int64_t V) : ConstPoolInt(Ty, V) {
|
||||
assert(isValueValidForType(Ty, V) && "Value too large for type!");
|
||||
}
|
||||
|
||||
ConstPoolUInt::ConstPoolUInt(const Type *Ty, uint64_t V, const string &Name)
|
||||
: ConstPoolInt(Ty, V, Name) {
|
||||
//cerr << "Uvalue = " << (int)V << ": " << Ty->getName() << endl;
|
||||
ConstPoolUInt::ConstPoolUInt(const Type *Ty, uint64_t V) : ConstPoolInt(Ty, V) {
|
||||
assert(isValueValidForType(Ty, V) && "Value too large for type!");
|
||||
}
|
||||
|
||||
ConstPoolFP::ConstPoolFP(const Type *Ty, double V, const string &Name)
|
||||
: ConstPoolVal(Ty, Name) {
|
||||
ConstPoolFP::ConstPoolFP(const Type *Ty, double V) : ConstPoolVal(Ty) {
|
||||
assert(isValueValidForType(Ty, V) && "Value too large for type!");
|
||||
Val = V;
|
||||
}
|
||||
|
||||
ConstPoolType::ConstPoolType(const Type *V, const string &Name)
|
||||
: ConstPoolVal(Type::TypeTy, Name), Val(V) {
|
||||
}
|
||||
|
||||
ConstPoolArray::ConstPoolArray(const ArrayType *T,
|
||||
vector<ConstPoolVal*> &V,
|
||||
const string &Name)
|
||||
: ConstPoolVal(T, Name) {
|
||||
ConstPoolArray::ConstPoolArray(const ArrayType *T,
|
||||
const vector<ConstPoolVal*> &V)
|
||||
: ConstPoolVal(T) {
|
||||
for (unsigned i = 0; i < V.size(); i++) {
|
||||
assert(V[i]->getType() == T->getElementType());
|
||||
Operands.push_back(Use(V[i], this));
|
||||
}
|
||||
}
|
||||
|
||||
ConstPoolStruct::ConstPoolStruct(const StructType *T,
|
||||
vector<ConstPoolVal*> &V,
|
||||
const string &Name)
|
||||
: ConstPoolVal(T, Name) {
|
||||
ConstPoolStruct::ConstPoolStruct(const StructType *T,
|
||||
const vector<ConstPoolVal*> &V)
|
||||
: ConstPoolVal(T) {
|
||||
const StructType::ElementTypes &ETypes = T->getElementTypes();
|
||||
|
||||
|
||||
for (unsigned i = 0; i < V.size(); i++) {
|
||||
assert(V[i]->getType() == ETypes[i]);
|
||||
Operands.push_back(Use(V[i], this));
|
||||
@ -273,40 +99,6 @@ ConstPoolStruct::ConstPoolStruct(const StructType *T,
|
||||
}
|
||||
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Copy Constructors
|
||||
|
||||
ConstPoolBool::ConstPoolBool(const ConstPoolBool &CPB)
|
||||
: ConstPoolVal(Type::BoolTy) {
|
||||
Val = CPB.Val;
|
||||
}
|
||||
|
||||
ConstPoolInt::ConstPoolInt(const ConstPoolInt &CPI)
|
||||
: ConstPoolVal(CPI.getType()) {
|
||||
Val.Signed = CPI.Val.Signed;
|
||||
}
|
||||
|
||||
ConstPoolFP::ConstPoolFP(const ConstPoolFP &CPFP)
|
||||
: ConstPoolVal(CPFP.getType()) {
|
||||
Val = CPFP.Val;
|
||||
}
|
||||
|
||||
ConstPoolType::ConstPoolType(const ConstPoolType &CPT)
|
||||
: ConstPoolVal(Type::TypeTy), Val(CPT.Val) {
|
||||
}
|
||||
|
||||
ConstPoolArray::ConstPoolArray(const ConstPoolArray &CPA)
|
||||
: ConstPoolVal(CPA.getType()) {
|
||||
for (unsigned i = 0; i < CPA.Operands.size(); i++)
|
||||
Operands.push_back(Use(CPA.Operands[i], this));
|
||||
}
|
||||
|
||||
ConstPoolStruct::ConstPoolStruct(const ConstPoolStruct &CPS)
|
||||
: ConstPoolVal(CPS.getType()) {
|
||||
for (unsigned i = 0; i < CPS.Operands.size(); i++)
|
||||
Operands.push_back(Use(CPS.Operands[i], this));
|
||||
}
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// getStrValue implementations
|
||||
|
||||
@ -326,17 +118,13 @@ string ConstPoolFP::getStrValue() const {
|
||||
return ftostr(Val);
|
||||
}
|
||||
|
||||
string ConstPoolType::getStrValue() const {
|
||||
return Val->getName();
|
||||
}
|
||||
|
||||
string ConstPoolArray::getStrValue() const {
|
||||
string Result = "[";
|
||||
if (Operands.size()) {
|
||||
Result += " " + Operands[0]->getType()->getName() +
|
||||
Result += " " + Operands[0]->getType()->getDescription() +
|
||||
" " + Operands[0]->castConstantAsserting()->getStrValue();
|
||||
for (unsigned i = 1; i < Operands.size(); i++)
|
||||
Result += ", " + Operands[i]->getType()->getName() +
|
||||
Result += ", " + Operands[i]->getType()->getDescription() +
|
||||
" " + Operands[i]->castConstantAsserting()->getStrValue();
|
||||
}
|
||||
|
||||
@ -346,63 +134,16 @@ string ConstPoolArray::getStrValue() const {
|
||||
string ConstPoolStruct::getStrValue() const {
|
||||
string Result = "{";
|
||||
if (Operands.size()) {
|
||||
Result += " " + Operands[0]->getType()->getName() +
|
||||
Result += " " + Operands[0]->getType()->getDescription() +
|
||||
" " + Operands[0]->castConstantAsserting()->getStrValue();
|
||||
for (unsigned i = 1; i < Operands.size(); i++)
|
||||
Result += ", " + Operands[i]->getType()->getName() +
|
||||
Result += ", " + Operands[i]->getType()->getDescription() +
|
||||
" " + Operands[i]->castConstantAsserting()->getStrValue();
|
||||
}
|
||||
|
||||
return Result + " }";
|
||||
}
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// equals implementations
|
||||
|
||||
bool ConstPoolBool::equals(const ConstPoolVal *V) const {
|
||||
assert(getType() == V->getType());
|
||||
return ((ConstPoolBool*)V)->getValue() == Val;
|
||||
}
|
||||
|
||||
bool ConstPoolInt::equals(const ConstPoolVal *V) const {
|
||||
assert(getType() == V->getType());
|
||||
return ((ConstPoolInt*)V)->Val.Signed == Val.Signed;
|
||||
}
|
||||
|
||||
bool ConstPoolFP::equals(const ConstPoolVal *V) const {
|
||||
assert(getType() == V->getType());
|
||||
return ((ConstPoolFP*)V)->getValue() == Val;
|
||||
}
|
||||
|
||||
bool ConstPoolType::equals(const ConstPoolVal *V) const {
|
||||
assert(getType() == V->getType());
|
||||
return ((ConstPoolType*)V)->getValue() == Val;
|
||||
}
|
||||
|
||||
bool ConstPoolArray::equals(const ConstPoolVal *V) const {
|
||||
assert(getType() == V->getType());
|
||||
ConstPoolArray *AV = (ConstPoolArray*)V;
|
||||
if (Operands.size() != AV->Operands.size()) return false;
|
||||
for (unsigned i = 0; i < Operands.size(); i++)
|
||||
if (!Operands[i]->castConstantAsserting()->equals(
|
||||
AV->Operands[i]->castConstantAsserting()))
|
||||
return false;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool ConstPoolStruct::equals(const ConstPoolVal *V) const {
|
||||
assert(getType() == V->getType());
|
||||
ConstPoolStruct *SV = (ConstPoolStruct*)V;
|
||||
if (Operands.size() != SV->Operands.size()) return false;
|
||||
for (unsigned i = 0; i < Operands.size(); i++)
|
||||
if (!Operands[i]->castConstantAsserting()->equals(
|
||||
SV->Operands[i]->castConstantAsserting()))
|
||||
return false;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// isValueValidForType implementations
|
||||
|
||||
@ -459,12 +200,214 @@ bool ConstPoolFP::isValueValidForType(const Type *Ty, double Val) {
|
||||
}
|
||||
};
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Hash Function Implementations
|
||||
#if 0
|
||||
unsigned ConstPoolSInt::hash(const Type *Ty, int64_t V) {
|
||||
return unsigned(Ty->getPrimitiveID() ^ V);
|
||||
}
|
||||
|
||||
unsigned ConstPoolUInt::hash(const Type *Ty, uint64_t V) {
|
||||
return unsigned(Ty->getPrimitiveID() ^ V);
|
||||
}
|
||||
|
||||
unsigned ConstPoolFP::hash(const Type *Ty, double V) {
|
||||
return Ty->getPrimitiveID() ^ unsigned(V);
|
||||
}
|
||||
|
||||
unsigned ConstPoolArray::hash(const ArrayType *Ty,
|
||||
const vector<ConstPoolVal*> &V) {
|
||||
unsigned Result = (Ty->getUniqueID() << 5) ^ (Ty->getUniqueID() * 7);
|
||||
for (unsigned i = 0; i < V.size(); ++i)
|
||||
Result ^= V[i]->getHash() << (i & 7);
|
||||
return Result;
|
||||
}
|
||||
|
||||
unsigned ConstPoolStruct::hash(const StructType *Ty,
|
||||
const vector<ConstPoolVal*> &V) {
|
||||
unsigned Result = (Ty->getUniqueID() << 5) ^ (Ty->getUniqueID() * 7);
|
||||
for (unsigned i = 0; i < V.size(); ++i)
|
||||
Result ^= V[i]->getHash() << (i & 7);
|
||||
return Result;
|
||||
}
|
||||
#endif
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Factory Function Implementation
|
||||
|
||||
template<class ValType, class ConstPoolClass>
|
||||
struct ValueMap {
|
||||
typedef pair<const Type*, ValType> ConstHashKey;
|
||||
map<ConstHashKey, ConstPoolClass *> Map;
|
||||
|
||||
inline ConstPoolClass *get(const Type *Ty, ValType V) {
|
||||
map<ConstHashKey,ConstPoolClass *>::iterator I =
|
||||
Map.find(ConstHashKey(Ty, V));
|
||||
return (I != Map.end()) ? I->second : 0;
|
||||
}
|
||||
|
||||
inline void add(const Type *Ty, ValType V, ConstPoolClass *CP) {
|
||||
Map.insert(make_pair(ConstHashKey(Ty, V), CP));
|
||||
}
|
||||
};
|
||||
|
||||
//---- ConstPoolUInt::get() and ConstPoolSInt::get() implementations...
|
||||
//
|
||||
static ValueMap<uint64_t, ConstPoolInt> IntConstants;
|
||||
|
||||
ConstPoolSInt *ConstPoolSInt::get(const Type *Ty, int64_t V) {
|
||||
ConstPoolSInt *Result = (ConstPoolSInt*)IntConstants.get(Ty, (uint64_t)V);
|
||||
if (!Result) // If no preexisting value, create one now...
|
||||
IntConstants.add(Ty, V, Result = new ConstPoolSInt(Ty, V));
|
||||
return Result;
|
||||
}
|
||||
|
||||
ConstPoolUInt *ConstPoolUInt::get(const Type *Ty, uint64_t V) {
|
||||
ConstPoolUInt *Result = (ConstPoolUInt*)IntConstants.get(Ty, V);
|
||||
if (!Result) // If no preexisting value, create one now...
|
||||
IntConstants.add(Ty, V, Result = new ConstPoolUInt(Ty, V));
|
||||
return Result;
|
||||
}
|
||||
|
||||
ConstPoolInt *ConstPoolInt::get(const Type *Ty, unsigned char V) {
|
||||
assert(V <= 127 && "Can only be used with very small positive constants!");
|
||||
if (Ty->isSigned()) return ConstPoolSInt::get(Ty, V);
|
||||
return ConstPoolUInt::get(Ty, V);
|
||||
}
|
||||
|
||||
//---- ConstPoolFP::get() implementation...
|
||||
//
|
||||
static ValueMap<double, ConstPoolFP> FPConstants;
|
||||
|
||||
ConstPoolFP *ConstPoolFP::get(const Type *Ty, double V) {
|
||||
ConstPoolFP *Result = FPConstants.get(Ty, V);
|
||||
if (!Result) // If no preexisting value, create one now...
|
||||
FPConstants.add(Ty, V, Result = new ConstPoolFP(Ty, V));
|
||||
return Result;
|
||||
}
|
||||
|
||||
//---- ConstPoolArray::get() implementation...
|
||||
//
|
||||
static ValueMap<vector<ConstPoolVal*>, ConstPoolArray> ArrayConstants;
|
||||
|
||||
ConstPoolArray *ConstPoolArray::get(const ArrayType *Ty,
|
||||
const vector<ConstPoolVal*> &V) {
|
||||
ConstPoolArray *Result = ArrayConstants.get(Ty, V);
|
||||
if (!Result) // If no preexisting value, create one now...
|
||||
ArrayConstants.add(Ty, V, Result = new ConstPoolArray(Ty, V));
|
||||
return Result;
|
||||
}
|
||||
|
||||
//---- ConstPoolStruct::get() implementation...
|
||||
//
|
||||
static ValueMap<vector<ConstPoolVal*>, ConstPoolStruct> StructConstants;
|
||||
|
||||
ConstPoolStruct *ConstPoolStruct::get(const StructType *Ty,
|
||||
const vector<ConstPoolVal*> &V) {
|
||||
ConstPoolStruct *Result = StructConstants.get(Ty, V);
|
||||
if (!Result) // If no preexisting value, create one now...
|
||||
StructConstants.add(Ty, V, Result = new ConstPoolStruct(Ty, V));
|
||||
return Result;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Extra Method implementations
|
||||
|
||||
ConstPoolInt *ConstPoolInt::get(const Type *Ty, unsigned char V) {
|
||||
assert(V <= 127 && "equals: Can only be used with very small constants!");
|
||||
if (Ty->isSigned()) return new ConstPoolSInt(Ty, V);
|
||||
return new ConstPoolUInt(Ty, V);
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
// Convenience functions to get the value of an integer constant, for an
|
||||
// appropriate integer or non-integer type that can be held in an integer.
|
||||
// The type of the argument must be the following:
|
||||
// GetSignedIntConstantValue: signed integer or bool
|
||||
// GetUnsignedIntConstantValue: unsigned integer, bool, or pointer
|
||||
// GetConstantValueAsSignedInt: any of the above, but the value
|
||||
// must fit into a int64_t.
|
||||
//
|
||||
// isValidConstant is set to true if a valid constant was found.
|
||||
//
|
||||
int64_t
|
||||
GetSignedIntConstantValue(const Value* val, bool& isValidConstant)
|
||||
{
|
||||
int64_t intValue = 0;
|
||||
isValidConstant = false;
|
||||
|
||||
if (val->getValueType() == Value::ConstantVal)
|
||||
{
|
||||
switch(val->getType()->getPrimitiveID())
|
||||
{
|
||||
case Type::BoolTyID:
|
||||
intValue = ((ConstPoolBool*) val)->getValue()? 1 : 0;
|
||||
isValidConstant = true;
|
||||
break;
|
||||
case Type::SByteTyID:
|
||||
case Type::ShortTyID:
|
||||
case Type::IntTyID:
|
||||
case Type::LongTyID:
|
||||
intValue = ((ConstPoolSInt*) val)->getValue();
|
||||
isValidConstant = true;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return intValue;
|
||||
}
|
||||
|
||||
uint64_t
|
||||
GetUnsignedIntConstantValue(const Value* val, bool& isValidConstant)
|
||||
{
|
||||
uint64_t intValue = 0;
|
||||
isValidConstant = false;
|
||||
|
||||
if (val->getValueType() == Value::ConstantVal)
|
||||
{
|
||||
switch(val->getType()->getPrimitiveID())
|
||||
{
|
||||
case Type::BoolTyID:
|
||||
intValue = ((ConstPoolBool*) val)->getValue()? 1 : 0;
|
||||
isValidConstant = true;
|
||||
break;
|
||||
case Type::UByteTyID:
|
||||
case Type::UShortTyID:
|
||||
case Type::UIntTyID:
|
||||
case Type::ULongTyID:
|
||||
case Type::PointerTyID:
|
||||
intValue = ((ConstPoolUInt*) val)->getValue();
|
||||
isValidConstant = true;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return intValue;
|
||||
}
|
||||
|
||||
|
||||
int64_t
|
||||
GetConstantValueAsSignedInt(const Value* val, bool& isValidConstant)
|
||||
{
|
||||
int64_t intValue = 0;
|
||||
|
||||
if (val->getType()->isSigned())
|
||||
{
|
||||
intValue = GetSignedIntConstantValue(val, isValidConstant);
|
||||
}
|
||||
else // non-numeric types will fall here
|
||||
{
|
||||
uint64_t uintValue = GetUnsignedIntConstantValue(val, isValidConstant);
|
||||
if (isValidConstant && uintValue < INT64_MAX) // then safe to cast to signed
|
||||
intValue = (int64_t) uintValue;
|
||||
else
|
||||
isValidConstant = false;
|
||||
}
|
||||
|
||||
return intValue;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user