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Record.cpp
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//===- Record.cpp - Record implementation ---------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Implement the tablegen record classes.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/FoldingSet.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/StringSet.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/Support/Allocator.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/SMLoc.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/TableGen/Error.h"
#include "llvm/TableGen/Record.h"
#include <cassert>
#include <cstdint>
#include <memory>
#include <map>
#include <string>
#include <utility>
#include <vector>
using namespace llvm;
#define DEBUG_TYPE "tblgen-records"
//===----------------------------------------------------------------------===//
// Context
//===----------------------------------------------------------------------===//
namespace llvm {
namespace detail {
/// This class contains all of the contextual static state of the Record
/// classes. This allows for better lifetime management and control of the used
/// static data.
struct RecordContext {
RecordContext()
: AnyRecord(0), TrueBitInit(true, &SharedBitRecTy),
FalseBitInit(false, &SharedBitRecTy), StringInitStringPool(Allocator),
StringInitCodePool(Allocator), LastRecordID(0) {}
BumpPtrAllocator Allocator;
std::vector<BitsRecTy *> SharedBitsRecTys;
BitRecTy SharedBitRecTy;
IntRecTy SharedIntRecTy;
StringRecTy SharedStringRecTy;
DagRecTy SharedDagRecTy;
RecordRecTy AnyRecord;
UnsetInit TheUnsetInit;
BitInit TrueBitInit;
BitInit FalseBitInit;
FoldingSet<BitsInit> TheBitsInitPool;
std::map<int64_t, IntInit *> TheIntInitPool;
StringMap<StringInit *, BumpPtrAllocator &> StringInitStringPool;
StringMap<StringInit *, BumpPtrAllocator &> StringInitCodePool;
FoldingSet<ListInit> TheListInitPool;
FoldingSet<UnOpInit> TheUnOpInitPool;
FoldingSet<BinOpInit> TheBinOpInitPool;
FoldingSet<TernOpInit> TheTernOpInitPool;
FoldingSet<FoldOpInit> TheFoldOpInitPool;
FoldingSet<IsAOpInit> TheIsAOpInitPool;
DenseMap<std::pair<RecTy *, Init *>, VarInit *> TheVarInitPool;
DenseMap<std::pair<TypedInit *, unsigned>, VarBitInit *> TheVarBitInitPool;
DenseMap<std::pair<TypedInit *, unsigned>, VarListElementInit *>
TheVarListElementInitPool;
FoldingSet<VarDefInit> TheVarDefInitPool;
DenseMap<std::pair<Init *, StringInit *>, FieldInit *> TheFieldInitPool;
FoldingSet<CondOpInit> TheCondOpInitPool;
FoldingSet<DagInit> TheDagInitPool;
unsigned LastRecordID;
};
} // namespace detail
} // namespace llvm
ManagedStatic<detail::RecordContext> Context;
//===----------------------------------------------------------------------===//
// Type implementations
//===----------------------------------------------------------------------===//
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
LLVM_DUMP_METHOD void RecTy::dump() const { print(errs()); }
#endif
ListRecTy *RecTy::getListTy() {
if (!ListTy)
ListTy = new(Context->Allocator) ListRecTy(this);
return ListTy;
}
bool RecTy::typeIsConvertibleTo(const RecTy *RHS) const {
assert(RHS && "NULL pointer");
return Kind == RHS->getRecTyKind();
}
bool RecTy::typeIsA(const RecTy *RHS) const { return this == RHS; }
BitRecTy *BitRecTy::get() { return &Context->SharedBitRecTy; }
bool BitRecTy::typeIsConvertibleTo(const RecTy *RHS) const{
if (RecTy::typeIsConvertibleTo(RHS) || RHS->getRecTyKind() == IntRecTyKind)
return true;
if (const BitsRecTy *BitsTy = dyn_cast<BitsRecTy>(RHS))
return BitsTy->getNumBits() == 1;
return false;
}
BitsRecTy *BitsRecTy::get(unsigned Sz) {
if (Sz >= Context->SharedBitsRecTys.size())
Context->SharedBitsRecTys.resize(Sz + 1);
BitsRecTy *&Ty = Context->SharedBitsRecTys[Sz];
if (!Ty)
Ty = new (Context->Allocator) BitsRecTy(Sz);
return Ty;
}
std::string BitsRecTy::getAsString() const {
return "bits<" + utostr(Size) + ">";
}
bool BitsRecTy::typeIsConvertibleTo(const RecTy *RHS) const {
if (RecTy::typeIsConvertibleTo(RHS)) //argument and the sender are same type
return cast<BitsRecTy>(RHS)->Size == Size;
RecTyKind kind = RHS->getRecTyKind();
return (kind == BitRecTyKind && Size == 1) || (kind == IntRecTyKind);
}
bool BitsRecTy::typeIsA(const RecTy *RHS) const {
if (const BitsRecTy *RHSb = dyn_cast<BitsRecTy>(RHS))
return RHSb->Size == Size;
return false;
}
IntRecTy *IntRecTy::get() { return &Context->SharedIntRecTy; }
bool IntRecTy::typeIsConvertibleTo(const RecTy *RHS) const {
RecTyKind kind = RHS->getRecTyKind();
return kind==BitRecTyKind || kind==BitsRecTyKind || kind==IntRecTyKind;
}
StringRecTy *StringRecTy::get() { return &Context->SharedStringRecTy; }
std::string StringRecTy::getAsString() const {
return "string";
}
bool StringRecTy::typeIsConvertibleTo(const RecTy *RHS) const {
RecTyKind Kind = RHS->getRecTyKind();
return Kind == StringRecTyKind;
}
std::string ListRecTy::getAsString() const {
return "list<" + ElementTy->getAsString() + ">";
}
bool ListRecTy::typeIsConvertibleTo(const RecTy *RHS) const {
if (const auto *ListTy = dyn_cast<ListRecTy>(RHS))
return ElementTy->typeIsConvertibleTo(ListTy->getElementType());
return false;
}
bool ListRecTy::typeIsA(const RecTy *RHS) const {
if (const ListRecTy *RHSl = dyn_cast<ListRecTy>(RHS))
return getElementType()->typeIsA(RHSl->getElementType());
return false;
}
DagRecTy *DagRecTy::get() { return &Context->SharedDagRecTy; }
std::string DagRecTy::getAsString() const {
return "dag";
}
static void ProfileRecordRecTy(FoldingSetNodeID &ID,
ArrayRef<Record *> Classes) {
ID.AddInteger(Classes.size());
for (Record *R : Classes)
ID.AddPointer(R);
}
RecordRecTy *RecordRecTy::get(ArrayRef<Record *> UnsortedClasses) {
if (UnsortedClasses.empty())
return &Context->AnyRecord;
FoldingSet<RecordRecTy> &ThePool =
UnsortedClasses[0]->getRecords().RecordTypePool;
SmallVector<Record *, 4> Classes(UnsortedClasses.begin(),
UnsortedClasses.end());
llvm::sort(Classes, [](Record *LHS, Record *RHS) {
return LHS->getNameInitAsString() < RHS->getNameInitAsString();
});
FoldingSetNodeID ID;
ProfileRecordRecTy(ID, Classes);
void *IP = nullptr;
if (RecordRecTy *Ty = ThePool.FindNodeOrInsertPos(ID, IP))
return Ty;
#ifndef NDEBUG
// Check for redundancy.
for (unsigned i = 0; i < Classes.size(); ++i) {
for (unsigned j = 0; j < Classes.size(); ++j) {
assert(i == j || !Classes[i]->isSubClassOf(Classes[j]));
}
assert(&Classes[0]->getRecords() == &Classes[i]->getRecords());
}
#endif
void *Mem = Context->Allocator.Allocate(
totalSizeToAlloc<Record *>(Classes.size()), alignof(RecordRecTy));
RecordRecTy *Ty = new(Mem) RecordRecTy(Classes.size());
std::uninitialized_copy(Classes.begin(), Classes.end(),
Ty->getTrailingObjects<Record *>());
ThePool.InsertNode(Ty, IP);
return Ty;
}
void RecordRecTy::Profile(FoldingSetNodeID &ID) const {
ProfileRecordRecTy(ID, getClasses());
}
std::string RecordRecTy::getAsString() const {
if (NumClasses == 1)
return getClasses()[0]->getNameInitAsString();
std::string Str = "{";
bool First = true;
for (Record *R : getClasses()) {
if (!First)
Str += ", ";
First = false;
Str += R->getNameInitAsString();
}
Str += "}";
return Str;
}
bool RecordRecTy::isSubClassOf(Record *Class) const {
return llvm::any_of(getClasses(), [Class](Record *MySuperClass) {
return MySuperClass == Class ||
MySuperClass->isSubClassOf(Class);
});
}
bool RecordRecTy::typeIsConvertibleTo(const RecTy *RHS) const {
if (this == RHS)
return true;
const RecordRecTy *RTy = dyn_cast<RecordRecTy>(RHS);
if (!RTy)
return false;
return llvm::all_of(RTy->getClasses(), [this](Record *TargetClass) {
return isSubClassOf(TargetClass);
});
}
bool RecordRecTy::typeIsA(const RecTy *RHS) const {
return typeIsConvertibleTo(RHS);
}
static RecordRecTy *resolveRecordTypes(RecordRecTy *T1, RecordRecTy *T2) {
SmallVector<Record *, 4> CommonSuperClasses;
SmallVector<Record *, 4> Stack(T1->classes_begin(), T1->classes_end());
while (!Stack.empty()) {
Record *R = Stack.pop_back_val();
if (T2->isSubClassOf(R)) {
CommonSuperClasses.push_back(R);
} else {
R->getDirectSuperClasses(Stack);
}
}
return RecordRecTy::get(CommonSuperClasses);
}
RecTy *llvm::resolveTypes(RecTy *T1, RecTy *T2) {
if (T1 == T2)
return T1;
if (RecordRecTy *RecTy1 = dyn_cast<RecordRecTy>(T1)) {
if (RecordRecTy *RecTy2 = dyn_cast<RecordRecTy>(T2))
return resolveRecordTypes(RecTy1, RecTy2);
}
if (T1->typeIsConvertibleTo(T2))
return T2;
if (T2->typeIsConvertibleTo(T1))
return T1;
if (ListRecTy *ListTy1 = dyn_cast<ListRecTy>(T1)) {
if (ListRecTy *ListTy2 = dyn_cast<ListRecTy>(T2)) {
RecTy* NewType = resolveTypes(ListTy1->getElementType(),
ListTy2->getElementType());
if (NewType)
return NewType->getListTy();
}
}
return nullptr;
}
//===----------------------------------------------------------------------===//
// Initializer implementations
//===----------------------------------------------------------------------===//
void Init::anchor() {}
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
LLVM_DUMP_METHOD void Init::dump() const { return print(errs()); }
#endif
UnsetInit *UnsetInit::get() { return &Context->TheUnsetInit; }
Init *UnsetInit::getCastTo(RecTy *Ty) const {
return const_cast<UnsetInit *>(this);
}
Init *UnsetInit::convertInitializerTo(RecTy *Ty) const {
return const_cast<UnsetInit *>(this);
}
BitInit *BitInit::get(bool V) {
return V ? &Context->TrueBitInit : &Context->FalseBitInit;
}
Init *BitInit::convertInitializerTo(RecTy *Ty) const {
if (isa<BitRecTy>(Ty))
return const_cast<BitInit *>(this);
if (isa<IntRecTy>(Ty))
return IntInit::get(getValue());
if (auto *BRT = dyn_cast<BitsRecTy>(Ty)) {
// Can only convert single bit.
if (BRT->getNumBits() == 1)
return BitsInit::get(const_cast<BitInit *>(this));
}
return nullptr;
}
static void
ProfileBitsInit(FoldingSetNodeID &ID, ArrayRef<Init *> Range) {
ID.AddInteger(Range.size());
for (Init *I : Range)
ID.AddPointer(I);
}
BitsInit *BitsInit::get(ArrayRef<Init *> Range) {
FoldingSetNodeID ID;
ProfileBitsInit(ID, Range);
void *IP = nullptr;
if (BitsInit *I = Context->TheBitsInitPool.FindNodeOrInsertPos(ID, IP))
return I;
void *Mem = Context->Allocator.Allocate(
totalSizeToAlloc<Init *>(Range.size()), alignof(BitsInit));
BitsInit *I = new(Mem) BitsInit(Range.size());
std::uninitialized_copy(Range.begin(), Range.end(),
I->getTrailingObjects<Init *>());
Context->TheBitsInitPool.InsertNode(I, IP);
return I;
}
void BitsInit::Profile(FoldingSetNodeID &ID) const {
ProfileBitsInit(ID, makeArrayRef(getTrailingObjects<Init *>(), NumBits));
}
Init *BitsInit::convertInitializerTo(RecTy *Ty) const {
if (isa<BitRecTy>(Ty)) {
if (getNumBits() != 1) return nullptr; // Only accept if just one bit!
return getBit(0);
}
if (auto *BRT = dyn_cast<BitsRecTy>(Ty)) {
// If the number of bits is right, return it. Otherwise we need to expand
// or truncate.
if (getNumBits() != BRT->getNumBits()) return nullptr;
return const_cast<BitsInit *>(this);
}
if (isa<IntRecTy>(Ty)) {
int64_t Result = 0;
for (unsigned i = 0, e = getNumBits(); i != e; ++i)
if (auto *Bit = dyn_cast<BitInit>(getBit(i)))
Result |= static_cast<int64_t>(Bit->getValue()) << i;
else
return nullptr;
return IntInit::get(Result);
}
return nullptr;
}
Init *
BitsInit::convertInitializerBitRange(ArrayRef<unsigned> Bits) const {
SmallVector<Init *, 16> NewBits(Bits.size());
for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
if (Bits[i] >= getNumBits())
return nullptr;
NewBits[i] = getBit(Bits[i]);
}
return BitsInit::get(NewBits);
}
bool BitsInit::isConcrete() const {
for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
if (!getBit(i)->isConcrete())
return false;
}
return true;
}
std::string BitsInit::getAsString() const {
std::string Result = "{ ";
for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
if (i) Result += ", ";
if (Init *Bit = getBit(e-i-1))
Result += Bit->getAsString();
else
Result += "*";
}
return Result + " }";
}
// resolveReferences - If there are any field references that refer to fields
// that have been filled in, we can propagate the values now.
Init *BitsInit::resolveReferences(Resolver &R) const {
bool Changed = false;
SmallVector<Init *, 16> NewBits(getNumBits());
Init *CachedBitVarRef = nullptr;
Init *CachedBitVarResolved = nullptr;
for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
Init *CurBit = getBit(i);
Init *NewBit = CurBit;
if (VarBitInit *CurBitVar = dyn_cast<VarBitInit>(CurBit)) {
if (CurBitVar->getBitVar() != CachedBitVarRef) {
CachedBitVarRef = CurBitVar->getBitVar();
CachedBitVarResolved = CachedBitVarRef->resolveReferences(R);
}
assert(CachedBitVarResolved && "Unresolved bitvar reference");
NewBit = CachedBitVarResolved->getBit(CurBitVar->getBitNum());
} else {
// getBit(0) implicitly converts int and bits<1> values to bit.
NewBit = CurBit->resolveReferences(R)->getBit(0);
}
if (isa<UnsetInit>(NewBit) && R.keepUnsetBits())
NewBit = CurBit;
NewBits[i] = NewBit;
Changed |= CurBit != NewBit;
}
if (Changed)
return BitsInit::get(NewBits);
return const_cast<BitsInit *>(this);
}
IntInit *IntInit::get(int64_t V) {
IntInit *&I = Context->TheIntInitPool[V];
if (!I)
I = new (Context->Allocator) IntInit(V);
return I;
}
std::string IntInit::getAsString() const {
return itostr(Value);
}
static bool canFitInBitfield(int64_t Value, unsigned NumBits) {
// For example, with NumBits == 4, we permit Values from [-7 .. 15].
return (NumBits >= sizeof(Value) * 8) ||
(Value >> NumBits == 0) || (Value >> (NumBits-1) == -1);
}
Init *IntInit::convertInitializerTo(RecTy *Ty) const {
if (isa<IntRecTy>(Ty))
return const_cast<IntInit *>(this);
if (isa<BitRecTy>(Ty)) {
int64_t Val = getValue();
if (Val != 0 && Val != 1) return nullptr; // Only accept 0 or 1 for a bit!
return BitInit::get(Val != 0);
}
if (auto *BRT = dyn_cast<BitsRecTy>(Ty)) {
int64_t Value = getValue();
// Make sure this bitfield is large enough to hold the integer value.
if (!canFitInBitfield(Value, BRT->getNumBits()))
return nullptr;
SmallVector<Init *, 16> NewBits(BRT->getNumBits());
for (unsigned i = 0; i != BRT->getNumBits(); ++i)
NewBits[i] = BitInit::get(Value & ((i < 64) ? (1LL << i) : 0));
return BitsInit::get(NewBits);
}
return nullptr;
}
Init *
IntInit::convertInitializerBitRange(ArrayRef<unsigned> Bits) const {
SmallVector<Init *, 16> NewBits(Bits.size());
for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
if (Bits[i] >= 64)
return nullptr;
NewBits[i] = BitInit::get(Value & (INT64_C(1) << Bits[i]));
}
return BitsInit::get(NewBits);
}
AnonymousNameInit *AnonymousNameInit::get(unsigned V) {
return new (Context->Allocator) AnonymousNameInit(V);
}
StringInit *AnonymousNameInit::getNameInit() const {
return StringInit::get(getAsString());
}
std::string AnonymousNameInit::getAsString() const {
return "anonymous_" + utostr(Value);
}
Init *AnonymousNameInit::resolveReferences(Resolver &R) const {
auto *Old = const_cast<Init *>(static_cast<const Init *>(this));
auto *New = R.resolve(Old);
New = New ? New : Old;
if (R.isFinal())
if (auto *Anonymous = dyn_cast<AnonymousNameInit>(New))
return Anonymous->getNameInit();
return New;
}
StringInit *StringInit::get(StringRef V, StringFormat Fmt) {
auto &InitMap = Fmt == SF_String ? Context->StringInitStringPool
: Context->StringInitCodePool;
auto &Entry = *InitMap.insert(std::make_pair(V, nullptr)).first;
if (!Entry.second)
Entry.second = new (Context->Allocator) StringInit(Entry.getKey(), Fmt);
return Entry.second;
}
Init *StringInit::convertInitializerTo(RecTy *Ty) const {
if (isa<StringRecTy>(Ty))
return const_cast<StringInit *>(this);
return nullptr;
}
static void ProfileListInit(FoldingSetNodeID &ID,
ArrayRef<Init *> Range,
RecTy *EltTy) {
ID.AddInteger(Range.size());
ID.AddPointer(EltTy);
for (Init *I : Range)
ID.AddPointer(I);
}
ListInit *ListInit::get(ArrayRef<Init *> Range, RecTy *EltTy) {
FoldingSetNodeID ID;
ProfileListInit(ID, Range, EltTy);
void *IP = nullptr;
if (ListInit *I = Context->TheListInitPool.FindNodeOrInsertPos(ID, IP))
return I;
assert(Range.empty() || !isa<TypedInit>(Range[0]) ||
cast<TypedInit>(Range[0])->getType()->typeIsConvertibleTo(EltTy));
void *Mem = Context->Allocator.Allocate(
totalSizeToAlloc<Init *>(Range.size()), alignof(ListInit));
ListInit *I = new (Mem) ListInit(Range.size(), EltTy);
std::uninitialized_copy(Range.begin(), Range.end(),
I->getTrailingObjects<Init *>());
Context->TheListInitPool.InsertNode(I, IP);
return I;
}
void ListInit::Profile(FoldingSetNodeID &ID) const {
RecTy *EltTy = cast<ListRecTy>(getType())->getElementType();
ProfileListInit(ID, getValues(), EltTy);
}
Init *ListInit::convertInitializerTo(RecTy *Ty) const {
if (getType() == Ty)
return const_cast<ListInit*>(this);
if (auto *LRT = dyn_cast<ListRecTy>(Ty)) {
SmallVector<Init*, 8> Elements;
Elements.reserve(getValues().size());
// Verify that all of the elements of the list are subclasses of the
// appropriate class!
bool Changed = false;
RecTy *ElementType = LRT->getElementType();
for (Init *I : getValues())
if (Init *CI = I->convertInitializerTo(ElementType)) {
Elements.push_back(CI);
if (CI != I)
Changed = true;
} else
return nullptr;
if (!Changed)
return const_cast<ListInit*>(this);
return ListInit::get(Elements, ElementType);
}
return nullptr;
}
Init *ListInit::convertInitListSlice(ArrayRef<unsigned> Elements) const {
if (Elements.size() == 1) {
if (Elements[0] >= size())
return nullptr;
return getElement(Elements[0]);
}
SmallVector<Init*, 8> Vals;
Vals.reserve(Elements.size());
for (unsigned Element : Elements) {
if (Element >= size())
return nullptr;
Vals.push_back(getElement(Element));
}
return ListInit::get(Vals, getElementType());
}
Record *ListInit::getElementAsRecord(unsigned i) const {
assert(i < NumValues && "List element index out of range!");
DefInit *DI = dyn_cast<DefInit>(getElement(i));
if (!DI)
PrintFatalError("Expected record in list!");
return DI->getDef();
}
Init *ListInit::resolveReferences(Resolver &R) const {
SmallVector<Init*, 8> Resolved;
Resolved.reserve(size());
bool Changed = false;
for (Init *CurElt : getValues()) {
Init *E = CurElt->resolveReferences(R);
Changed |= E != CurElt;
Resolved.push_back(E);
}
if (Changed)
return ListInit::get(Resolved, getElementType());
return const_cast<ListInit *>(this);
}
bool ListInit::isComplete() const {
for (Init *Element : *this) {
if (!Element->isComplete())
return false;
}
return true;
}
bool ListInit::isConcrete() const {
for (Init *Element : *this) {
if (!Element->isConcrete())
return false;
}
return true;
}
std::string ListInit::getAsString() const {
std::string Result = "[";
const char *sep = "";
for (Init *Element : *this) {
Result += sep;
sep = ", ";
Result += Element->getAsString();
}
return Result + "]";
}
Init *OpInit::getBit(unsigned Bit) const {
if (getType() == BitRecTy::get())
return const_cast<OpInit*>(this);
return VarBitInit::get(const_cast<OpInit*>(this), Bit);
}
static void
ProfileUnOpInit(FoldingSetNodeID &ID, unsigned Opcode, Init *Op, RecTy *Type) {
ID.AddInteger(Opcode);
ID.AddPointer(Op);
ID.AddPointer(Type);
}
UnOpInit *UnOpInit::get(UnaryOp Opc, Init *LHS, RecTy *Type) {
FoldingSetNodeID ID;
ProfileUnOpInit(ID, Opc, LHS, Type);
void *IP = nullptr;
if (UnOpInit *I = Context->TheUnOpInitPool.FindNodeOrInsertPos(ID, IP))
return I;
UnOpInit *I = new (Context->Allocator) UnOpInit(Opc, LHS, Type);
Context->TheUnOpInitPool.InsertNode(I, IP);
return I;
}
void UnOpInit::Profile(FoldingSetNodeID &ID) const {
ProfileUnOpInit(ID, getOpcode(), getOperand(), getType());
}
Init *UnOpInit::Fold(Record *CurRec, bool IsFinal) const {
switch (getOpcode()) {
case CAST:
if (isa<StringRecTy>(getType())) {
if (StringInit *LHSs = dyn_cast<StringInit>(LHS))
return LHSs;
if (DefInit *LHSd = dyn_cast<DefInit>(LHS))
return StringInit::get(LHSd->getAsString());
if (IntInit *LHSi =
dyn_cast_or_null<IntInit>(LHS->convertInitializerTo(IntRecTy::get())))
return StringInit::get(LHSi->getAsString());
} else if (isa<RecordRecTy>(getType())) {
if (StringInit *Name = dyn_cast<StringInit>(LHS)) {
if (!CurRec && !IsFinal)
break;
assert(CurRec && "NULL pointer");
Record *D;
// Self-references are allowed, but their resolution is delayed until
// the final resolve to ensure that we get the correct type for them.
auto *Anonymous = dyn_cast<AnonymousNameInit>(CurRec->getNameInit());
if (Name == CurRec->getNameInit() ||
(Anonymous && Name == Anonymous->getNameInit())) {
if (!IsFinal)
break;
D = CurRec;
} else {
D = CurRec->getRecords().getDef(Name->getValue());
if (!D) {
if (IsFinal)
PrintFatalError(CurRec->getLoc(),
Twine("Undefined reference to record: '") +
Name->getValue() + "'\n");
break;
}
}
DefInit *DI = DefInit::get(D);
if (!DI->getType()->typeIsA(getType())) {
PrintFatalError(CurRec->getLoc(),
Twine("Expected type '") +
getType()->getAsString() + "', got '" +
DI->getType()->getAsString() + "' in: " +
getAsString() + "\n");
}
return DI;
}
}
if (Init *NewInit = LHS->convertInitializerTo(getType()))
return NewInit;
break;
case NOT:
if (IntInit *LHSi =
dyn_cast_or_null<IntInit>(LHS->convertInitializerTo(IntRecTy::get())))
return IntInit::get(LHSi->getValue() ? 0 : 1);
break;
case HEAD:
if (ListInit *LHSl = dyn_cast<ListInit>(LHS)) {
assert(!LHSl->empty() && "Empty list in head");
return LHSl->getElement(0);
}
break;
case TAIL:
if (ListInit *LHSl = dyn_cast<ListInit>(LHS)) {
assert(!LHSl->empty() && "Empty list in tail");
// Note the +1. We can't just pass the result of getValues()
// directly.
return ListInit::get(LHSl->getValues().slice(1), LHSl->getElementType());
}
break;
case SIZE:
if (ListInit *LHSl = dyn_cast<ListInit>(LHS))
return IntInit::get(LHSl->size());
if (DagInit *LHSd = dyn_cast<DagInit>(LHS))
return IntInit::get(LHSd->arg_size());
if (StringInit *LHSs = dyn_cast<StringInit>(LHS))
return IntInit::get(LHSs->getValue().size());
break;
case EMPTY:
if (ListInit *LHSl = dyn_cast<ListInit>(LHS))
return IntInit::get(LHSl->empty());
if (DagInit *LHSd = dyn_cast<DagInit>(LHS))
return IntInit::get(LHSd->arg_empty());
if (StringInit *LHSs = dyn_cast<StringInit>(LHS))
return IntInit::get(LHSs->getValue().empty());
break;
case GETDAGOP:
if (DagInit *Dag = dyn_cast<DagInit>(LHS)) {
DefInit *DI = DefInit::get(Dag->getOperatorAsDef({}));
if (!DI->getType()->typeIsA(getType())) {
PrintFatalError(CurRec->getLoc(),
Twine("Expected type '") +
getType()->getAsString() + "', got '" +
DI->getType()->getAsString() + "' in: " +
getAsString() + "\n");
} else {
return DI;
}
}
break;
}
return const_cast<UnOpInit *>(this);
}
Init *UnOpInit::resolveReferences(Resolver &R) const {
Init *lhs = LHS->resolveReferences(R);
if (LHS != lhs || (R.isFinal() && getOpcode() == CAST))
return (UnOpInit::get(getOpcode(), lhs, getType()))
->Fold(R.getCurrentRecord(), R.isFinal());
return const_cast<UnOpInit *>(this);
}
std::string UnOpInit::getAsString() const {
std::string Result;
switch (getOpcode()) {
case CAST: Result = "!cast<" + getType()->getAsString() + ">"; break;
case NOT: Result = "!not"; break;
case HEAD: Result = "!head"; break;
case TAIL: Result = "!tail"; break;
case SIZE: Result = "!size"; break;
case EMPTY: Result = "!empty"; break;
case GETDAGOP: Result = "!getdagop"; break;
}
return Result + "(" + LHS->getAsString() + ")";
}
static void
ProfileBinOpInit(FoldingSetNodeID &ID, unsigned Opcode, Init *LHS, Init *RHS,
RecTy *Type) {
ID.AddInteger(Opcode);
ID.AddPointer(LHS);
ID.AddPointer(RHS);
ID.AddPointer(Type);
}
BinOpInit *BinOpInit::get(BinaryOp Opc, Init *LHS, Init *RHS, RecTy *Type) {
FoldingSetNodeID ID;
ProfileBinOpInit(ID, Opc, LHS, RHS, Type);
void *IP = nullptr;
if (BinOpInit *I = Context->TheBinOpInitPool.FindNodeOrInsertPos(ID, IP))
return I;
BinOpInit *I = new (Context->Allocator) BinOpInit(Opc, LHS, RHS, Type);
Context->TheBinOpInitPool.InsertNode(I, IP);
return I;
}
void BinOpInit::Profile(FoldingSetNodeID &ID) const {
ProfileBinOpInit(ID, getOpcode(), getLHS(), getRHS(), getType());
}
static StringInit *ConcatStringInits(const StringInit *I0,
const StringInit *I1) {
SmallString<80> Concat(I0->getValue());
Concat.append(I1->getValue());
return StringInit::get(Concat,
StringInit::determineFormat(I0->getFormat(),
I1->getFormat()));
}
static StringInit *interleaveStringList(const ListInit *List,
const StringInit *Delim) {
if (List->size() == 0)
return StringInit::get("");
StringInit *Element = dyn_cast<StringInit>(List->getElement(0));
if (!Element)
return nullptr;
SmallString<80> Result(Element->getValue());
StringInit::StringFormat Fmt = StringInit::SF_String;
for (unsigned I = 1, E = List->size(); I < E; ++I) {
Result.append(Delim->getValue());
StringInit *Element = dyn_cast<StringInit>(List->getElement(I));
if (!Element)
return nullptr;
Result.append(Element->getValue());
Fmt = StringInit::determineFormat(Fmt, Element->getFormat());
}
return StringInit::get(Result, Fmt);
}
static StringInit *interleaveIntList(const ListInit *List,
const StringInit *Delim) {
if (List->size() == 0)
return StringInit::get("");
IntInit *Element =
dyn_cast_or_null<IntInit>(List->getElement(0)
->convertInitializerTo(IntRecTy::get()));
if (!Element)
return nullptr;
SmallString<80> Result(Element->getAsString());
for (unsigned I = 1, E = List->size(); I < E; ++I) {
Result.append(Delim->getValue());
IntInit *Element =
dyn_cast_or_null<IntInit>(List->getElement(I)
->convertInitializerTo(IntRecTy::get()));
if (!Element)
return nullptr;
Result.append(Element->getAsString());
}
return StringInit::get(Result);
}
Init *BinOpInit::getStrConcat(Init *I0, Init *I1) {
// Shortcut for the common case of concatenating two strings.
if (const StringInit *I0s = dyn_cast<StringInit>(I0))
if (const StringInit *I1s = dyn_cast<StringInit>(I1))
return ConcatStringInits(I0s, I1s);
return BinOpInit::get(BinOpInit::STRCONCAT, I0, I1, StringRecTy::get());
}
static ListInit *ConcatListInits(const ListInit *LHS,
const ListInit *RHS) {
SmallVector<Init *, 8> Args;
llvm::append_range(Args, *LHS);
llvm::append_range(Args, *RHS);
return ListInit::get(Args, LHS->getElementType());
}
Init *BinOpInit::getListConcat(TypedInit *LHS, Init *RHS) {
assert(isa<ListRecTy>(LHS->getType()) && "First arg must be a list");
// Shortcut for the common case of concatenating two lists.
if (const ListInit *LHSList = dyn_cast<ListInit>(LHS))
if (const ListInit *RHSList = dyn_cast<ListInit>(RHS))
return ConcatListInits(LHSList, RHSList);
return BinOpInit::get(BinOpInit::LISTCONCAT, LHS, RHS, LHS->getType());
}
Init *BinOpInit::Fold(Record *CurRec) const {
switch (getOpcode()) {
case CONCAT: {
DagInit *LHSs = dyn_cast<DagInit>(LHS);
DagInit *RHSs = dyn_cast<DagInit>(RHS);
if (LHSs && RHSs) {
DefInit *LOp = dyn_cast<DefInit>(LHSs->getOperator());
DefInit *ROp = dyn_cast<DefInit>(RHSs->getOperator());
if ((!LOp && !isa<UnsetInit>(LHSs->getOperator())) ||
(!ROp && !isa<UnsetInit>(RHSs->getOperator())))
break;