mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 04:30:12 +00:00
ba0f991a78
This patch places class definitions in implementation files into anonymous namespaces to prevent weak vtables. This eliminates the need of providing an out-of-line definition to pin the vtable explicitly to the file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195092 91177308-0d34-0410-b5e6-96231b3b80d8
129 lines
3.5 KiB
C++
129 lines
3.5 KiB
C++
//===- ValueTypes.cpp - Tablegen extended ValueType implementation --------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// The EVT type is used by tablegen as well as in LLVM. In order to handle
|
|
// extended types, the EVT type uses support functions that call into
|
|
// LLVM's type system code. These aren't accessible in tablegen, so this
|
|
// file provides simple replacements.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/CodeGen/ValueTypes.h"
|
|
#include "llvm/Support/Casting.h"
|
|
#include <map>
|
|
using namespace llvm;
|
|
|
|
namespace llvm {
|
|
|
|
class Type {
|
|
protected:
|
|
enum TypeKind {
|
|
TK_ExtendedIntegerType,
|
|
TK_ExtendedVectorType
|
|
};
|
|
private:
|
|
TypeKind Kind;
|
|
public:
|
|
TypeKind getKind() const {
|
|
return Kind;
|
|
}
|
|
Type(TypeKind K) : Kind(K) {}
|
|
virtual unsigned getSizeInBits() const = 0;
|
|
virtual ~Type();
|
|
};
|
|
|
|
// Provide out-of-line definition to prevent weak vtable.
|
|
Type::~Type() {}
|
|
|
|
}
|
|
|
|
namespace {
|
|
class ExtendedIntegerType : public Type {
|
|
unsigned BitWidth;
|
|
public:
|
|
explicit ExtendedIntegerType(unsigned bits)
|
|
: Type(TK_ExtendedIntegerType), BitWidth(bits) {}
|
|
static bool classof(const Type *T) {
|
|
return T->getKind() == TK_ExtendedIntegerType;
|
|
}
|
|
virtual unsigned getSizeInBits() const {
|
|
return getBitWidth();
|
|
}
|
|
unsigned getBitWidth() const {
|
|
return BitWidth;
|
|
}
|
|
};
|
|
|
|
class ExtendedVectorType : public Type {
|
|
EVT ElementType;
|
|
unsigned NumElements;
|
|
public:
|
|
ExtendedVectorType(EVT elty, unsigned num)
|
|
: Type(TK_ExtendedVectorType), ElementType(elty), NumElements(num) {}
|
|
static bool classof(const Type *T) {
|
|
return T->getKind() == TK_ExtendedVectorType;
|
|
}
|
|
virtual unsigned getSizeInBits() const {
|
|
return getNumElements() * getElementType().getSizeInBits();
|
|
}
|
|
EVT getElementType() const {
|
|
return ElementType;
|
|
}
|
|
unsigned getNumElements() const {
|
|
return NumElements;
|
|
}
|
|
};
|
|
} // end anonymous namespace
|
|
|
|
static std::map<unsigned, const Type *>
|
|
ExtendedIntegerTypeMap;
|
|
static std::map<std::pair<uintptr_t, uintptr_t>, const Type *>
|
|
ExtendedVectorTypeMap;
|
|
|
|
bool EVT::isExtendedFloatingPoint() const {
|
|
assert(isExtended() && "Type is not extended!");
|
|
// Extended floating-point types are not supported yet.
|
|
return false;
|
|
}
|
|
|
|
bool EVT::isExtendedInteger() const {
|
|
assert(isExtended() && "Type is not extended!");
|
|
return isa<ExtendedIntegerType>(LLVMTy);
|
|
}
|
|
|
|
bool EVT::isExtendedVector() const {
|
|
assert(isExtended() && "Type is not extended!");
|
|
return isa<ExtendedVectorType>(LLVMTy);
|
|
}
|
|
|
|
bool EVT::isExtended64BitVector() const {
|
|
assert(isExtended() && "Type is not extended!");
|
|
return isExtendedVector() && getSizeInBits() == 64;
|
|
}
|
|
|
|
bool EVT::isExtended128BitVector() const {
|
|
assert(isExtended() && "Type is not extended!");
|
|
return isExtendedVector() && getSizeInBits() == 128;
|
|
}
|
|
|
|
EVT EVT::getExtendedVectorElementType() const {
|
|
assert(isExtendedVector() && "Type is not an extended vector!");
|
|
return static_cast<const ExtendedVectorType *>(LLVMTy)->getElementType();
|
|
}
|
|
|
|
unsigned EVT::getExtendedVectorNumElements() const {
|
|
assert(isExtendedVector() && "Type is not an extended vector!");
|
|
return static_cast<const ExtendedVectorType *>(LLVMTy)->getNumElements();
|
|
}
|
|
|
|
unsigned EVT::getExtendedSizeInBits() const {
|
|
assert(isExtended() && "Type is not extended!");
|
|
return LLVMTy->getSizeInBits();
|
|
}
|