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tblgen: Move mini Type hierarchy to LLVM-style RTTI.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165648 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sean Silva
2012-10-10 20:24:49 +00:00
parent 3f7b7f8ce0
commit 8b43dbf9ea
1 changed files with 22 additions and 4 deletions
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26
utils/TableGen/TGValueTypes.cpp
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@@ -15,13 +15,25 @@
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
#include "llvm/CodeGen/ValueTypes.h" #include "llvm/CodeGen/ValueTypes.h"
#include "llvm/Support/Casting.h"
#include <map> #include <map>
using namespace llvm; using namespace llvm;
namespace llvm { namespace llvm {
class Type { class Type {
protected:
enum TypeKind {
TK_ExtendedIntegerType,
TK_ExtendedVectorType
};
private:
TypeKind Kind;
public: public:
TypeKind getKind() const {
return Kind;
}
Type(TypeKind K) : Kind(K) {}
virtual unsigned getSizeInBits() const = 0; virtual unsigned getSizeInBits() const = 0;
virtual ~Type() {} virtual ~Type() {}
}; };
@@ -32,7 +44,10 @@ class ExtendedIntegerType : public Type {
unsigned BitWidth; unsigned BitWidth;
public: public:
explicit ExtendedIntegerType(unsigned bits) explicit ExtendedIntegerType(unsigned bits)
: BitWidth(bits) {} : Type(TK_ExtendedIntegerType), BitWidth(bits) {}
static bool classof(const Type *T) {
return T->getKind() == TK_ExtendedIntegerType;
};
unsigned getSizeInBits() const { unsigned getSizeInBits() const {
return getBitWidth(); return getBitWidth();
} }
@@ -46,7 +61,10 @@ class ExtendedVectorType : public Type {
unsigned NumElements; unsigned NumElements;
public: public:
ExtendedVectorType(EVT elty, unsigned num) ExtendedVectorType(EVT elty, unsigned num)
: ElementType(elty), NumElements(num) {} : Type(TK_ExtendedVectorType), ElementType(elty), NumElements(num) {}
static bool classof(const Type *T) {
return T->getKind() == TK_ExtendedVectorType;
};
unsigned getSizeInBits() const { unsigned getSizeInBits() const {
return getNumElements() * getElementType().getSizeInBits(); return getNumElements() * getElementType().getSizeInBits();
} }
@@ -71,12 +89,12 @@ bool EVT::isExtendedFloatingPoint() const {
bool EVT::isExtendedInteger() const { bool EVT::isExtendedInteger() const {
assert(isExtended() && "Type is not extended!"); assert(isExtended() && "Type is not extended!");
return dynamic_cast<const ExtendedIntegerType *>(LLVMTy) != 0; return isa<ExtendedIntegerType>(LLVMTy);
} }
bool EVT::isExtendedVector() const { bool EVT::isExtendedVector() const {
assert(isExtended() && "Type is not extended!"); assert(isExtended() && "Type is not extended!");
return dynamic_cast<const ExtendedVectorType *>(LLVMTy) != 0; return isa<ExtendedVectorType>(LLVMTy);
} }
bool EVT::isExtended64BitVector() const { bool EVT::isExtended64BitVector() const {