[llvm-commits] [llvm] r165645 - /llvm/trunk/include/llvm/TableGen/Record.h
Sean Silva
silvas at purdue.edu
Wed Oct 10 13:24:40 PDT 2012
Author: silvas
Date: Wed Oct 10 15:24:40 2012
New Revision: 165645
URL: http://llvm.org/viewvc/llvm-project?rev=165645&view=rev
Log:
tblgen: Put dyn_cast<> machinery in place for Init hierarchy.
Modified:
llvm/trunk/include/llvm/TableGen/Record.h
Modified: llvm/trunk/include/llvm/TableGen/Record.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/TableGen/Record.h?rev=165645&r1=165644&r2=165645&view=diff
==============================================================================
--- llvm/trunk/include/llvm/TableGen/Record.h (original)
+++ llvm/trunk/include/llvm/TableGen/Record.h Wed Oct 10 15:24:40 2012
@@ -485,12 +485,53 @@
//===----------------------------------------------------------------------===//
class Init {
+protected:
+ /// \brief Discriminator enum (for isa<>, dyn_cast<>, et al.)
+ ///
+ /// This enum is laid out by a preorder traversal of the inheritance
+ /// hierarchy, and does not contain an entry for abstract classes, as per
+ /// the recommendation in docs/HowToSetUpLLVMStyleRTTI.rst.
+ ///
+ /// We also explicitly include "first" and "last" values for each
+ /// interior node of the inheritance tree, to make it easier to read the
+ /// corresponding classof().
+ ///
+ /// We could pack these a bit tighter by not having the IK_FirstXXXInit
+ /// and IK_LastXXXInit be their own values, but that would degrade
+ /// readability for really no benefit.
+ enum InitKind {
+ IK_BitInit,
+ IK_BitsInit,
+ IK_FirstTypedInit,
+ IK_DagInit,
+ IK_DefInit,
+ IK_FieldInit,
+ IK_IntInit,
+ IK_ListInit,
+ IK_FirstOpInit,
+ IK_BinOpInit,
+ IK_TernOpInit,
+ IK_UnOpInit,
+ IK_LastOpInit,
+ IK_StringInit,
+ IK_VarInit,
+ IK_VarListElementInit,
+ IK_LastTypedInit,
+ IK_UnsetInit,
+ IK_VarBitInit
+ };
+
+private:
+ const InitKind Kind;
Init(const Init &) LLVM_DELETED_FUNCTION;
Init &operator=(const Init &) LLVM_DELETED_FUNCTION;
virtual void anchor();
+public:
+ InitKind getKind() const { return Kind; }
+
protected:
- Init(void) {}
+ explicit Init(InitKind K) : Kind(K) {}
public:
virtual ~Init() {}
@@ -591,9 +632,13 @@
TypedInit &operator=(const TypedInit &Other) LLVM_DELETED_FUNCTION;
protected:
- explicit TypedInit(RecTy *T) : Ty(T) {}
+ explicit TypedInit(InitKind K, RecTy *T) : Init(K), Ty(T) {}
public:
+ static bool classof(const Init *I) {
+ return I->getKind() >= IK_FirstTypedInit &&
+ I->getKind() <= IK_LastTypedInit;
+ }
RecTy *getType() const { return Ty; }
virtual Init *
@@ -618,12 +663,15 @@
/// UnsetInit - ? - Represents an uninitialized value
///
class UnsetInit : public Init {
- UnsetInit() : Init() {}
+ UnsetInit() : Init(IK_UnsetInit) {}
UnsetInit(const UnsetInit &) LLVM_DELETED_FUNCTION;
UnsetInit &operator=(const UnsetInit &Other) LLVM_DELETED_FUNCTION;
virtual void anchor();
public:
+ static bool classof(const Init *I) {
+ return I->getKind() == IK_UnsetInit;
+ }
static UnsetInit *get();
virtual Init *convertInitializerTo(RecTy *Ty) const {
@@ -644,12 +692,15 @@
class BitInit : public Init {
bool Value;
- explicit BitInit(bool V) : Value(V) {}
+ explicit BitInit(bool V) : Init(IK_BitInit), Value(V) {}
BitInit(const BitInit &Other) LLVM_DELETED_FUNCTION;
BitInit &operator=(BitInit &Other) LLVM_DELETED_FUNCTION;
virtual void anchor();
public:
+ static bool classof(const Init *I) {
+ return I->getKind() == IK_BitInit;
+ }
static BitInit *get(bool V);
bool getValue() const { return Value; }
@@ -672,12 +723,16 @@
class BitsInit : public Init, public FoldingSetNode {
std::vector<Init*> Bits;
- BitsInit(ArrayRef<Init *> Range) : Bits(Range.begin(), Range.end()) {}
+ BitsInit(ArrayRef<Init *> Range)
+ : Init(IK_BitsInit), Bits(Range.begin(), Range.end()) {}
BitsInit(const BitsInit &Other) LLVM_DELETED_FUNCTION;
BitsInit &operator=(const BitsInit &Other) LLVM_DELETED_FUNCTION;
public:
+ static bool classof(const Init *I) {
+ return I->getKind() == IK_BitsInit;
+ }
static BitsInit *get(ArrayRef<Init *> Range);
void Profile(FoldingSetNodeID &ID) const;
@@ -716,12 +771,16 @@
class IntInit : public TypedInit {
int64_t Value;
- explicit IntInit(int64_t V) : TypedInit(IntRecTy::get()), Value(V) {}
+ explicit IntInit(int64_t V)
+ : TypedInit(IK_IntInit, IntRecTy::get()), Value(V) {}
IntInit(const IntInit &Other) LLVM_DELETED_FUNCTION;
IntInit &operator=(const IntInit &Other) LLVM_DELETED_FUNCTION;
public:
+ static bool classof(const Init *I) {
+ return I->getKind() == IK_IntInit;
+ }
static IntInit *get(int64_t V);
int64_t getValue() const { return Value; }
@@ -754,13 +813,16 @@
std::string Value;
explicit StringInit(const std::string &V)
- : TypedInit(StringRecTy::get()), Value(V) {}
+ : TypedInit(IK_StringInit, StringRecTy::get()), Value(V) {}
StringInit(const StringInit &Other) LLVM_DELETED_FUNCTION;
StringInit &operator=(const StringInit &Other) LLVM_DELETED_FUNCTION;
virtual void anchor();
public:
+ static bool classof(const Init *I) {
+ return I->getKind() == IK_StringInit;
+ }
static StringInit *get(StringRef);
const std::string &getValue() const { return Value; }
@@ -794,12 +856,16 @@
private:
explicit ListInit(ArrayRef<Init *> Range, RecTy *EltTy)
- : TypedInit(ListRecTy::get(EltTy)), Values(Range.begin(), Range.end()) {}
+ : TypedInit(IK_ListInit, ListRecTy::get(EltTy)),
+ Values(Range.begin(), Range.end()) {}
ListInit(const ListInit &Other) LLVM_DELETED_FUNCTION;
ListInit &operator=(const ListInit &Other) LLVM_DELETED_FUNCTION;
public:
+ static bool classof(const Init *I) {
+ return I->getKind() == IK_ListInit;
+ }
static ListInit *get(ArrayRef<Init *> Range, RecTy *EltTy);
void Profile(FoldingSetNodeID &ID) const;
@@ -855,9 +921,13 @@
OpInit &operator=(OpInit &Other) LLVM_DELETED_FUNCTION;
protected:
- explicit OpInit(RecTy *Type) : TypedInit(Type) {}
+ explicit OpInit(InitKind K, RecTy *Type) : TypedInit(K, Type) {}
public:
+ static bool classof(const Init *I) {
+ return I->getKind() >= IK_FirstOpInit &&
+ I->getKind() <= IK_LastOpInit;
+ }
// Clone - Clone this operator, replacing arguments with the new list
virtual OpInit *clone(std::vector<Init *> &Operands) const = 0;
@@ -889,12 +959,15 @@
Init *LHS;
UnOpInit(UnaryOp opc, Init *lhs, RecTy *Type)
- : OpInit(Type), Opc(opc), LHS(lhs) {}
+ : OpInit(IK_UnOpInit, Type), Opc(opc), LHS(lhs) {}
UnOpInit(const UnOpInit &Other) LLVM_DELETED_FUNCTION;
UnOpInit &operator=(const UnOpInit &Other) LLVM_DELETED_FUNCTION;
public:
+ static bool classof(const Init *I) {
+ return I->getKind() == IK_UnOpInit;
+ }
static UnOpInit *get(UnaryOp opc, Init *lhs, RecTy *Type);
// Clone - Clone this operator, replacing arguments with the new list
@@ -932,12 +1005,15 @@
Init *LHS, *RHS;
BinOpInit(BinaryOp opc, Init *lhs, Init *rhs, RecTy *Type) :
- OpInit(Type), Opc(opc), LHS(lhs), RHS(rhs) {}
+ OpInit(IK_BinOpInit, Type), Opc(opc), LHS(lhs), RHS(rhs) {}
BinOpInit(const BinOpInit &Other) LLVM_DELETED_FUNCTION;
BinOpInit &operator=(const BinOpInit &Other) LLVM_DELETED_FUNCTION;
public:
+ static bool classof(const Init *I) {
+ return I->getKind() == IK_BinOpInit;
+ }
static BinOpInit *get(BinaryOp opc, Init *lhs, Init *rhs,
RecTy *Type);
@@ -982,12 +1058,15 @@
TernOpInit(TernaryOp opc, Init *lhs, Init *mhs, Init *rhs,
RecTy *Type) :
- OpInit(Type), Opc(opc), LHS(lhs), MHS(mhs), RHS(rhs) {}
+ OpInit(IK_TernOpInit, Type), Opc(opc), LHS(lhs), MHS(mhs), RHS(rhs) {}
TernOpInit(const TernOpInit &Other) LLVM_DELETED_FUNCTION;
TernOpInit &operator=(const TernOpInit &Other) LLVM_DELETED_FUNCTION;
public:
+ static bool classof(const Init *I) {
+ return I->getKind() == IK_TernOpInit;
+ }
static TernOpInit *get(TernaryOp opc, Init *lhs,
Init *mhs, Init *rhs,
RecTy *Type);
@@ -1036,14 +1115,17 @@
Init *VarName;
explicit VarInit(const std::string &VN, RecTy *T)
- : TypedInit(T), VarName(StringInit::get(VN)) {}
+ : TypedInit(IK_VarInit, T), VarName(StringInit::get(VN)) {}
explicit VarInit(Init *VN, RecTy *T)
- : TypedInit(T), VarName(VN) {}
+ : TypedInit(IK_VarInit, T), VarName(VN) {}
VarInit(const VarInit &Other) LLVM_DELETED_FUNCTION;
VarInit &operator=(const VarInit &Other) LLVM_DELETED_FUNCTION;
public:
+ static bool classof(const Init *I) {
+ return I->getKind() == IK_VarInit;
+ }
static VarInit *get(const std::string &VN, RecTy *T);
static VarInit *get(Init *VN, RecTy *T);
@@ -1083,7 +1165,7 @@
TypedInit *TI;
unsigned Bit;
- VarBitInit(TypedInit *T, unsigned B) : TI(T), Bit(B) {
+ VarBitInit(TypedInit *T, unsigned B) : Init(IK_VarBitInit), TI(T), Bit(B) {
assert(T->getType() &&
(isa<IntRecTy>(T->getType()) ||
(isa<BitsRecTy>(T->getType()) &&
@@ -1095,6 +1177,9 @@
VarBitInit &operator=(const VarBitInit &Other) LLVM_DELETED_FUNCTION;
public:
+ static bool classof(const Init *I) {
+ return I->getKind() == IK_VarBitInit;
+ }
static VarBitInit *get(TypedInit *T, unsigned B);
virtual Init *convertInitializerTo(RecTy *Ty) const {
@@ -1120,8 +1205,9 @@
unsigned Element;
VarListElementInit(TypedInit *T, unsigned E)
- : TypedInit(cast<ListRecTy>(T->getType())->getElementType()),
- TI(T), Element(E) {
+ : TypedInit(IK_VarListElementInit,
+ cast<ListRecTy>(T->getType())->getElementType()),
+ TI(T), Element(E) {
assert(T->getType() && isa<ListRecTy>(T->getType()) &&
"Illegal VarBitInit expression!");
}
@@ -1130,6 +1216,9 @@
void operator=(const VarListElementInit &Other) LLVM_DELETED_FUNCTION;
public:
+ static bool classof(const Init *I) {
+ return I->getKind() == IK_VarListElementInit;
+ }
static VarListElementInit *get(TypedInit *T, unsigned E);
virtual Init *convertInitializerTo(RecTy *Ty) const {
@@ -1157,13 +1246,16 @@
class DefInit : public TypedInit {
Record *Def;
- DefInit(Record *D, RecordRecTy *T) : TypedInit(T), Def(D) {}
+ DefInit(Record *D, RecordRecTy *T) : TypedInit(IK_DefInit, T), Def(D) {}
friend class Record;
DefInit(const DefInit &Other) LLVM_DELETED_FUNCTION;
DefInit &operator=(const DefInit &Other) LLVM_DELETED_FUNCTION;
public:
+ static bool classof(const Init *I) {
+ return I->getKind() == IK_DefInit;
+ }
static DefInit *get(Record*);
virtual Init *convertInitializerTo(RecTy *Ty) const {
@@ -1201,7 +1293,7 @@
std::string FieldName; // Field we are accessing
FieldInit(Init *R, const std::string &FN)
- : TypedInit(R->getFieldType(FN)), Rec(R), FieldName(FN) {
+ : TypedInit(IK_FieldInit, R->getFieldType(FN)), Rec(R), FieldName(FN) {
assert(getType() && "FieldInit with non-record type!");
}
@@ -1209,6 +1301,9 @@
FieldInit &operator=(const FieldInit &Other) LLVM_DELETED_FUNCTION;
public:
+ static bool classof(const Init *I) {
+ return I->getKind() == IK_FieldInit;
+ }
static FieldInit *get(Init *R, const std::string &FN);
static FieldInit *get(Init *R, const Init *FN);
@@ -1242,7 +1337,7 @@
DagInit(Init *V, const std::string &VN,
ArrayRef<Init *> ArgRange,
ArrayRef<std::string> NameRange)
- : TypedInit(DagRecTy::get()), Val(V), ValName(VN),
+ : TypedInit(IK_DagInit, DagRecTy::get()), Val(V), ValName(VN),
Args(ArgRange.begin(), ArgRange.end()),
ArgNames(NameRange.begin(), NameRange.end()) {}
@@ -1250,6 +1345,9 @@
DagInit &operator=(const DagInit &Other) LLVM_DELETED_FUNCTION;
public:
+ static bool classof(const Init *I) {
+ return I->getKind() == IK_DagInit;
+ }
static DagInit *get(Init *V, const std::string &VN,
ArrayRef<Init *> ArgRange,
ArrayRef<std::string> NameRange);
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