3605 lines
141 KiB
C++
3605 lines
141 KiB
C++
//===- llvm/IR/DebugInfoMetadata.h - Debug info metadata --------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Declarations for metadata specific to debug info.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_IR_DEBUGINFOMETADATA_H
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#define LLVM_IR_DEBUGINFOMETADATA_H
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/ADT/BitmaskEnum.h"
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#include "llvm/ADT/None.h"
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#include "llvm/ADT/Optional.h"
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#include "llvm/ADT/PointerUnion.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/ADT/iterator_range.h"
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#include "llvm/BinaryFormat/Dwarf.h"
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#include "llvm/IR/Constants.h"
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#include "llvm/IR/Metadata.h"
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#include "llvm/Support/Casting.h"
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#include <cassert>
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#include <climits>
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#include <cstddef>
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#include <cstdint>
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#include <iterator>
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#include <type_traits>
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#include <vector>
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// Helper macros for defining get() overrides.
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#define DEFINE_MDNODE_GET_UNPACK_IMPL(...) __VA_ARGS__
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#define DEFINE_MDNODE_GET_UNPACK(ARGS) DEFINE_MDNODE_GET_UNPACK_IMPL ARGS
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#define DEFINE_MDNODE_GET_DISTINCT_TEMPORARY(CLASS, FORMAL, ARGS) \
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static CLASS *getDistinct(LLVMContext &Context, \
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DEFINE_MDNODE_GET_UNPACK(FORMAL)) { \
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return getImpl(Context, DEFINE_MDNODE_GET_UNPACK(ARGS), Distinct); \
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} \
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static Temp##CLASS getTemporary(LLVMContext &Context, \
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DEFINE_MDNODE_GET_UNPACK(FORMAL)) { \
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return Temp##CLASS( \
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getImpl(Context, DEFINE_MDNODE_GET_UNPACK(ARGS), Temporary)); \
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}
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#define DEFINE_MDNODE_GET(CLASS, FORMAL, ARGS) \
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static CLASS *get(LLVMContext &Context, DEFINE_MDNODE_GET_UNPACK(FORMAL)) { \
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return getImpl(Context, DEFINE_MDNODE_GET_UNPACK(ARGS), Uniqued); \
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} \
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static CLASS *getIfExists(LLVMContext &Context, \
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DEFINE_MDNODE_GET_UNPACK(FORMAL)) { \
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return getImpl(Context, DEFINE_MDNODE_GET_UNPACK(ARGS), Uniqued, \
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/* ShouldCreate */ false); \
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} \
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DEFINE_MDNODE_GET_DISTINCT_TEMPORARY(CLASS, FORMAL, ARGS)
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namespace llvm {
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class DITypeRefArray {
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const MDTuple *N = nullptr;
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public:
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DITypeRefArray() = default;
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DITypeRefArray(const MDTuple *N) : N(N) {}
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explicit operator bool() const { return get(); }
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explicit operator MDTuple *() const { return get(); }
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MDTuple *get() const { return const_cast<MDTuple *>(N); }
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MDTuple *operator->() const { return get(); }
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MDTuple &operator*() const { return *get(); }
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// FIXME: Fix callers and remove condition on N.
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unsigned size() const { return N ? N->getNumOperands() : 0u; }
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DIType *operator[](unsigned I) const {
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return cast_or_null<DIType>(N->getOperand(I));
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}
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class iterator : std::iterator<std::input_iterator_tag, DIType *,
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std::ptrdiff_t, void, DIType *> {
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MDNode::op_iterator I = nullptr;
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public:
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iterator() = default;
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explicit iterator(MDNode::op_iterator I) : I(I) {}
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DIType *operator*() const { return cast_or_null<DIType>(*I); }
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iterator &operator++() {
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++I;
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return *this;
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}
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iterator operator++(int) {
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iterator Temp(*this);
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++I;
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return Temp;
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}
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bool operator==(const iterator &X) const { return I == X.I; }
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bool operator!=(const iterator &X) const { return I != X.I; }
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};
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// FIXME: Fix callers and remove condition on N.
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iterator begin() const { return N ? iterator(N->op_begin()) : iterator(); }
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iterator end() const { return N ? iterator(N->op_end()) : iterator(); }
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};
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/// Tagged DWARF-like metadata node.
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///
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/// A metadata node with a DWARF tag (i.e., a constant named \c DW_TAG_*,
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/// defined in llvm/BinaryFormat/Dwarf.h). Called \a DINode because it's
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/// potentially used for non-DWARF output.
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class DINode : public MDNode {
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friend class LLVMContextImpl;
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friend class MDNode;
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protected:
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DINode(LLVMContext &C, unsigned ID, StorageType Storage, unsigned Tag,
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ArrayRef<Metadata *> Ops1, ArrayRef<Metadata *> Ops2 = None)
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: MDNode(C, ID, Storage, Ops1, Ops2) {
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assert(Tag < 1u << 16);
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SubclassData16 = Tag;
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}
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~DINode() = default;
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template <class Ty> Ty *getOperandAs(unsigned I) const {
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return cast_or_null<Ty>(getOperand(I));
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}
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StringRef getStringOperand(unsigned I) const {
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if (auto *S = getOperandAs<MDString>(I))
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return S->getString();
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return StringRef();
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}
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static MDString *getCanonicalMDString(LLVMContext &Context, StringRef S) {
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if (S.empty())
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return nullptr;
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return MDString::get(Context, S);
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}
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/// Allow subclasses to mutate the tag.
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void setTag(unsigned Tag) { SubclassData16 = Tag; }
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public:
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unsigned getTag() const { return SubclassData16; }
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/// Debug info flags.
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///
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/// The three accessibility flags are mutually exclusive and rolled together
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/// in the first two bits.
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enum DIFlags : uint32_t {
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#define HANDLE_DI_FLAG(ID, NAME) Flag##NAME = ID,
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#define DI_FLAG_LARGEST_NEEDED
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#include "llvm/IR/DebugInfoFlags.def"
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FlagAccessibility = FlagPrivate | FlagProtected | FlagPublic,
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FlagPtrToMemberRep = FlagSingleInheritance | FlagMultipleInheritance |
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FlagVirtualInheritance,
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LLVM_MARK_AS_BITMASK_ENUM(FlagLargest)
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};
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static DIFlags getFlag(StringRef Flag);
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static StringRef getFlagString(DIFlags Flag);
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/// Split up a flags bitfield.
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///
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/// Split \c Flags into \c SplitFlags, a vector of its components. Returns
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/// any remaining (unrecognized) bits.
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static DIFlags splitFlags(DIFlags Flags,
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SmallVectorImpl<DIFlags> &SplitFlags);
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static bool classof(const Metadata *MD) {
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switch (MD->getMetadataID()) {
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default:
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return false;
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case GenericDINodeKind:
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case DISubrangeKind:
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case DIEnumeratorKind:
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case DIBasicTypeKind:
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case DIStringTypeKind:
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case DIDerivedTypeKind:
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case DICompositeTypeKind:
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case DISubroutineTypeKind:
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case DIFileKind:
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case DICompileUnitKind:
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case DISubprogramKind:
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case DILexicalBlockKind:
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case DILexicalBlockFileKind:
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case DINamespaceKind:
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case DICommonBlockKind:
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case DITemplateTypeParameterKind:
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case DITemplateValueParameterKind:
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case DIGlobalVariableKind:
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case DILocalVariableKind:
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case DILabelKind:
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case DIObjCPropertyKind:
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case DIImportedEntityKind:
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case DIModuleKind:
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case DIGenericSubrangeKind:
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return true;
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}
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}
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};
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/// Generic tagged DWARF-like metadata node.
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///
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/// An un-specialized DWARF-like metadata node. The first operand is a
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/// (possibly empty) null-separated \a MDString header that contains arbitrary
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/// fields. The remaining operands are \a dwarf_operands(), and are pointers
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/// to other metadata.
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class GenericDINode : public DINode {
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friend class LLVMContextImpl;
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friend class MDNode;
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GenericDINode(LLVMContext &C, StorageType Storage, unsigned Hash,
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unsigned Tag, ArrayRef<Metadata *> Ops1,
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ArrayRef<Metadata *> Ops2)
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: DINode(C, GenericDINodeKind, Storage, Tag, Ops1, Ops2) {
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setHash(Hash);
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}
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~GenericDINode() { dropAllReferences(); }
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void setHash(unsigned Hash) { SubclassData32 = Hash; }
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void recalculateHash();
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static GenericDINode *getImpl(LLVMContext &Context, unsigned Tag,
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StringRef Header, ArrayRef<Metadata *> DwarfOps,
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StorageType Storage, bool ShouldCreate = true) {
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return getImpl(Context, Tag, getCanonicalMDString(Context, Header),
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DwarfOps, Storage, ShouldCreate);
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}
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static GenericDINode *getImpl(LLVMContext &Context, unsigned Tag,
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MDString *Header, ArrayRef<Metadata *> DwarfOps,
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StorageType Storage, bool ShouldCreate = true);
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TempGenericDINode cloneImpl() const {
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return getTemporary(getContext(), getTag(), getHeader(),
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SmallVector<Metadata *, 4>(dwarf_operands()));
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}
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public:
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unsigned getHash() const { return SubclassData32; }
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DEFINE_MDNODE_GET(GenericDINode, (unsigned Tag, StringRef Header,
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ArrayRef<Metadata *> DwarfOps),
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(Tag, Header, DwarfOps))
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DEFINE_MDNODE_GET(GenericDINode, (unsigned Tag, MDString *Header,
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ArrayRef<Metadata *> DwarfOps),
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(Tag, Header, DwarfOps))
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/// Return a (temporary) clone of this.
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TempGenericDINode clone() const { return cloneImpl(); }
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unsigned getTag() const { return SubclassData16; }
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StringRef getHeader() const { return getStringOperand(0); }
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MDString *getRawHeader() const { return getOperandAs<MDString>(0); }
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op_iterator dwarf_op_begin() const { return op_begin() + 1; }
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op_iterator dwarf_op_end() const { return op_end(); }
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op_range dwarf_operands() const {
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return op_range(dwarf_op_begin(), dwarf_op_end());
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}
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unsigned getNumDwarfOperands() const { return getNumOperands() - 1; }
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const MDOperand &getDwarfOperand(unsigned I) const {
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return getOperand(I + 1);
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}
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void replaceDwarfOperandWith(unsigned I, Metadata *New) {
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replaceOperandWith(I + 1, New);
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}
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static bool classof(const Metadata *MD) {
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return MD->getMetadataID() == GenericDINodeKind;
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}
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};
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/// Array subrange.
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///
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/// TODO: Merge into node for DW_TAG_array_type, which should have a custom
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/// type.
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class DISubrange : public DINode {
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friend class LLVMContextImpl;
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friend class MDNode;
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DISubrange(LLVMContext &C, StorageType Storage, ArrayRef<Metadata *> Ops)
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: DINode(C, DISubrangeKind, Storage, dwarf::DW_TAG_subrange_type, Ops) {}
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~DISubrange() = default;
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static DISubrange *getImpl(LLVMContext &Context, int64_t Count,
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int64_t LowerBound, StorageType Storage,
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bool ShouldCreate = true);
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static DISubrange *getImpl(LLVMContext &Context, Metadata *CountNode,
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int64_t LowerBound, StorageType Storage,
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bool ShouldCreate = true);
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static DISubrange *getImpl(LLVMContext &Context, Metadata *CountNode,
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Metadata *LowerBound, Metadata *UpperBound,
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Metadata *Stride, StorageType Storage,
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bool ShouldCreate = true);
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TempDISubrange cloneImpl() const {
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return getTemporary(getContext(), getRawCountNode(), getRawLowerBound(),
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getRawUpperBound(), getRawStride());
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}
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public:
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DEFINE_MDNODE_GET(DISubrange, (int64_t Count, int64_t LowerBound = 0),
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(Count, LowerBound))
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DEFINE_MDNODE_GET(DISubrange, (Metadata *CountNode, int64_t LowerBound = 0),
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(CountNode, LowerBound))
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DEFINE_MDNODE_GET(DISubrange,
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(Metadata * CountNode, Metadata *LowerBound,
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Metadata *UpperBound, Metadata *Stride),
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(CountNode, LowerBound, UpperBound, Stride))
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TempDISubrange clone() const { return cloneImpl(); }
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Metadata *getRawCountNode() const {
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return getOperand(0).get();
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}
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Metadata *getRawLowerBound() const { return getOperand(1).get(); }
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Metadata *getRawUpperBound() const { return getOperand(2).get(); }
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Metadata *getRawStride() const { return getOperand(3).get(); }
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typedef PointerUnion<ConstantInt*, DIVariable*> CountType;
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typedef PointerUnion<ConstantInt *, DIVariable *, DIExpression *> BoundType;
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CountType getCount() const;
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BoundType getLowerBound() const;
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BoundType getUpperBound() const;
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BoundType getStride() const;
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static bool classof(const Metadata *MD) {
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return MD->getMetadataID() == DISubrangeKind;
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}
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};
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class DIGenericSubrange : public DINode {
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friend class LLVMContextImpl;
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friend class MDNode;
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DIGenericSubrange(LLVMContext &C, StorageType Storage,
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ArrayRef<Metadata *> Ops)
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: DINode(C, DIGenericSubrangeKind, Storage,
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dwarf::DW_TAG_generic_subrange, Ops) {}
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~DIGenericSubrange() = default;
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static DIGenericSubrange *getImpl(LLVMContext &Context, Metadata *CountNode,
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Metadata *LowerBound, Metadata *UpperBound,
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Metadata *Stride, StorageType Storage,
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bool ShouldCreate = true);
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TempDIGenericSubrange cloneImpl() const {
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return getTemporary(getContext(), getRawCountNode(), getRawLowerBound(),
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getRawUpperBound(), getRawStride());
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}
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public:
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DEFINE_MDNODE_GET(DIGenericSubrange,
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(Metadata * CountNode, Metadata *LowerBound,
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Metadata *UpperBound, Metadata *Stride),
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(CountNode, LowerBound, UpperBound, Stride))
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TempDIGenericSubrange clone() const { return cloneImpl(); }
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Metadata *getRawCountNode() const { return getOperand(0).get(); }
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Metadata *getRawLowerBound() const { return getOperand(1).get(); }
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Metadata *getRawUpperBound() const { return getOperand(2).get(); }
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Metadata *getRawStride() const { return getOperand(3).get(); }
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using BoundType = PointerUnion<DIVariable *, DIExpression *>;
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BoundType getCount() const;
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BoundType getLowerBound() const;
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BoundType getUpperBound() const;
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BoundType getStride() const;
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static bool classof(const Metadata *MD) {
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return MD->getMetadataID() == DIGenericSubrangeKind;
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}
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};
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/// Enumeration value.
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///
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/// TODO: Add a pointer to the context (DW_TAG_enumeration_type) once that no
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/// longer creates a type cycle.
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class DIEnumerator : public DINode {
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friend class LLVMContextImpl;
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friend class MDNode;
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APInt Value;
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DIEnumerator(LLVMContext &C, StorageType Storage, const APInt &Value,
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bool IsUnsigned, ArrayRef<Metadata *> Ops)
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: DINode(C, DIEnumeratorKind, Storage, dwarf::DW_TAG_enumerator, Ops),
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Value(Value) {
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SubclassData32 = IsUnsigned;
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}
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DIEnumerator(LLVMContext &C, StorageType Storage, int64_t Value,
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bool IsUnsigned, ArrayRef<Metadata *> Ops)
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: DIEnumerator(C, Storage, APInt(64, Value, !IsUnsigned), IsUnsigned,
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Ops) {}
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~DIEnumerator() = default;
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static DIEnumerator *getImpl(LLVMContext &Context, const APInt &Value,
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bool IsUnsigned, StringRef Name,
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StorageType Storage, bool ShouldCreate = true) {
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return getImpl(Context, Value, IsUnsigned,
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getCanonicalMDString(Context, Name), Storage, ShouldCreate);
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}
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static DIEnumerator *getImpl(LLVMContext &Context, const APInt &Value,
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bool IsUnsigned, MDString *Name,
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StorageType Storage, bool ShouldCreate = true);
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TempDIEnumerator cloneImpl() const {
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return getTemporary(getContext(), getValue(), isUnsigned(), getName());
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}
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public:
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DEFINE_MDNODE_GET(DIEnumerator,
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(int64_t Value, bool IsUnsigned, StringRef Name),
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(APInt(64, Value, !IsUnsigned), IsUnsigned, Name))
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DEFINE_MDNODE_GET(DIEnumerator,
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(int64_t Value, bool IsUnsigned, MDString *Name),
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(APInt(64, Value, !IsUnsigned), IsUnsigned, Name))
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DEFINE_MDNODE_GET(DIEnumerator,
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(APInt Value, bool IsUnsigned, StringRef Name),
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(Value, IsUnsigned, Name))
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DEFINE_MDNODE_GET(DIEnumerator,
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(APInt Value, bool IsUnsigned, MDString *Name),
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(Value, IsUnsigned, Name))
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TempDIEnumerator clone() const { return cloneImpl(); }
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const APInt &getValue() const { return Value; }
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bool isUnsigned() const { return SubclassData32; }
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StringRef getName() const { return getStringOperand(0); }
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MDString *getRawName() const { return getOperandAs<MDString>(0); }
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static bool classof(const Metadata *MD) {
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return MD->getMetadataID() == DIEnumeratorKind;
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}
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};
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/// Base class for scope-like contexts.
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///
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/// Base class for lexical scopes and types (which are also declaration
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/// contexts).
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///
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/// TODO: Separate the concepts of declaration contexts and lexical scopes.
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class DIScope : public DINode {
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protected:
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DIScope(LLVMContext &C, unsigned ID, StorageType Storage, unsigned Tag,
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ArrayRef<Metadata *> Ops)
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: DINode(C, ID, Storage, Tag, Ops) {}
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~DIScope() = default;
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public:
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DIFile *getFile() const { return cast_or_null<DIFile>(getRawFile()); }
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inline StringRef getFilename() const;
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inline StringRef getDirectory() const;
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inline Optional<StringRef> getSource() const;
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StringRef getName() const;
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DIScope *getScope() const;
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/// Return the raw underlying file.
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///
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/// A \a DIFile is a \a DIScope, but it doesn't point at a separate file (it
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/// \em is the file). If \c this is an \a DIFile, we need to return \c this.
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/// Otherwise, return the first operand, which is where all other subclasses
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|
/// store their file pointer.
|
|
Metadata *getRawFile() const {
|
|
return isa<DIFile>(this) ? const_cast<DIScope *>(this)
|
|
: static_cast<Metadata *>(getOperand(0));
|
|
}
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
switch (MD->getMetadataID()) {
|
|
default:
|
|
return false;
|
|
case DIBasicTypeKind:
|
|
case DIStringTypeKind:
|
|
case DIDerivedTypeKind:
|
|
case DICompositeTypeKind:
|
|
case DISubroutineTypeKind:
|
|
case DIFileKind:
|
|
case DICompileUnitKind:
|
|
case DISubprogramKind:
|
|
case DILexicalBlockKind:
|
|
case DILexicalBlockFileKind:
|
|
case DINamespaceKind:
|
|
case DICommonBlockKind:
|
|
case DIModuleKind:
|
|
return true;
|
|
}
|
|
}
|
|
};
|
|
|
|
/// File.
|
|
///
|
|
/// TODO: Merge with directory/file node (including users).
|
|
/// TODO: Canonicalize paths on creation.
|
|
class DIFile : public DIScope {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
public:
|
|
/// Which algorithm (e.g. MD5) a checksum was generated with.
|
|
///
|
|
/// The encoding is explicit because it is used directly in Bitcode. The
|
|
/// value 0 is reserved to indicate the absence of a checksum in Bitcode.
|
|
enum ChecksumKind {
|
|
// The first variant was originally CSK_None, encoded as 0. The new
|
|
// internal representation removes the need for this by wrapping the
|
|
// ChecksumInfo in an Optional, but to preserve Bitcode compatibility the 0
|
|
// encoding is reserved.
|
|
CSK_MD5 = 1,
|
|
CSK_SHA1 = 2,
|
|
CSK_SHA256 = 3,
|
|
CSK_Last = CSK_SHA256 // Should be last enumeration.
|
|
};
|
|
|
|
/// A single checksum, represented by a \a Kind and a \a Value (a string).
|
|
template <typename T>
|
|
struct ChecksumInfo {
|
|
/// The kind of checksum which \a Value encodes.
|
|
ChecksumKind Kind;
|
|
/// The string value of the checksum.
|
|
T Value;
|
|
|
|
ChecksumInfo(ChecksumKind Kind, T Value) : Kind(Kind), Value(Value) { }
|
|
~ChecksumInfo() = default;
|
|
bool operator==(const ChecksumInfo<T> &X) const {
|
|
return Kind == X.Kind && Value == X.Value;
|
|
}
|
|
bool operator!=(const ChecksumInfo<T> &X) const { return !(*this == X); }
|
|
StringRef getKindAsString() const { return getChecksumKindAsString(Kind); }
|
|
};
|
|
|
|
private:
|
|
Optional<ChecksumInfo<MDString *>> Checksum;
|
|
Optional<MDString *> Source;
|
|
|
|
DIFile(LLVMContext &C, StorageType Storage,
|
|
Optional<ChecksumInfo<MDString *>> CS, Optional<MDString *> Src,
|
|
ArrayRef<Metadata *> Ops)
|
|
: DIScope(C, DIFileKind, Storage, dwarf::DW_TAG_file_type, Ops),
|
|
Checksum(CS), Source(Src) {}
|
|
~DIFile() = default;
|
|
|
|
static DIFile *getImpl(LLVMContext &Context, StringRef Filename,
|
|
StringRef Directory,
|
|
Optional<ChecksumInfo<StringRef>> CS,
|
|
Optional<StringRef> Source,
|
|
StorageType Storage, bool ShouldCreate = true) {
|
|
Optional<ChecksumInfo<MDString *>> MDChecksum;
|
|
if (CS)
|
|
MDChecksum.emplace(CS->Kind, getCanonicalMDString(Context, CS->Value));
|
|
return getImpl(Context, getCanonicalMDString(Context, Filename),
|
|
getCanonicalMDString(Context, Directory), MDChecksum,
|
|
Source ? Optional<MDString *>(getCanonicalMDString(Context, *Source)) : None,
|
|
Storage, ShouldCreate);
|
|
}
|
|
static DIFile *getImpl(LLVMContext &Context, MDString *Filename,
|
|
MDString *Directory,
|
|
Optional<ChecksumInfo<MDString *>> CS,
|
|
Optional<MDString *> Source, StorageType Storage,
|
|
bool ShouldCreate = true);
|
|
|
|
TempDIFile cloneImpl() const {
|
|
return getTemporary(getContext(), getFilename(), getDirectory(),
|
|
getChecksum(), getSource());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DIFile, (StringRef Filename, StringRef Directory,
|
|
Optional<ChecksumInfo<StringRef>> CS = None,
|
|
Optional<StringRef> Source = None),
|
|
(Filename, Directory, CS, Source))
|
|
DEFINE_MDNODE_GET(DIFile, (MDString * Filename, MDString *Directory,
|
|
Optional<ChecksumInfo<MDString *>> CS = None,
|
|
Optional<MDString *> Source = None),
|
|
(Filename, Directory, CS, Source))
|
|
|
|
TempDIFile clone() const { return cloneImpl(); }
|
|
|
|
StringRef getFilename() const { return getStringOperand(0); }
|
|
StringRef getDirectory() const { return getStringOperand(1); }
|
|
Optional<ChecksumInfo<StringRef>> getChecksum() const {
|
|
Optional<ChecksumInfo<StringRef>> StringRefChecksum;
|
|
if (Checksum)
|
|
StringRefChecksum.emplace(Checksum->Kind, Checksum->Value->getString());
|
|
return StringRefChecksum;
|
|
}
|
|
Optional<StringRef> getSource() const {
|
|
return Source ? Optional<StringRef>((*Source)->getString()) : None;
|
|
}
|
|
|
|
MDString *getRawFilename() const { return getOperandAs<MDString>(0); }
|
|
MDString *getRawDirectory() const { return getOperandAs<MDString>(1); }
|
|
Optional<ChecksumInfo<MDString *>> getRawChecksum() const { return Checksum; }
|
|
Optional<MDString *> getRawSource() const { return Source; }
|
|
|
|
static StringRef getChecksumKindAsString(ChecksumKind CSKind);
|
|
static Optional<ChecksumKind> getChecksumKind(StringRef CSKindStr);
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DIFileKind;
|
|
}
|
|
};
|
|
|
|
StringRef DIScope::getFilename() const {
|
|
if (auto *F = getFile())
|
|
return F->getFilename();
|
|
return "";
|
|
}
|
|
|
|
StringRef DIScope::getDirectory() const {
|
|
if (auto *F = getFile())
|
|
return F->getDirectory();
|
|
return "";
|
|
}
|
|
|
|
Optional<StringRef> DIScope::getSource() const {
|
|
if (auto *F = getFile())
|
|
return F->getSource();
|
|
return None;
|
|
}
|
|
|
|
/// Base class for types.
|
|
///
|
|
/// TODO: Remove the hardcoded name and context, since many types don't use
|
|
/// them.
|
|
/// TODO: Split up flags.
|
|
class DIType : public DIScope {
|
|
unsigned Line;
|
|
DIFlags Flags;
|
|
uint64_t SizeInBits;
|
|
uint64_t OffsetInBits;
|
|
uint32_t AlignInBits;
|
|
|
|
protected:
|
|
DIType(LLVMContext &C, unsigned ID, StorageType Storage, unsigned Tag,
|
|
unsigned Line, uint64_t SizeInBits, uint32_t AlignInBits,
|
|
uint64_t OffsetInBits, DIFlags Flags, ArrayRef<Metadata *> Ops)
|
|
: DIScope(C, ID, Storage, Tag, Ops) {
|
|
init(Line, SizeInBits, AlignInBits, OffsetInBits, Flags);
|
|
}
|
|
~DIType() = default;
|
|
|
|
void init(unsigned Line, uint64_t SizeInBits, uint32_t AlignInBits,
|
|
uint64_t OffsetInBits, DIFlags Flags) {
|
|
this->Line = Line;
|
|
this->Flags = Flags;
|
|
this->SizeInBits = SizeInBits;
|
|
this->AlignInBits = AlignInBits;
|
|
this->OffsetInBits = OffsetInBits;
|
|
}
|
|
|
|
/// Change fields in place.
|
|
void mutate(unsigned Tag, unsigned Line, uint64_t SizeInBits,
|
|
uint32_t AlignInBits, uint64_t OffsetInBits, DIFlags Flags) {
|
|
assert(isDistinct() && "Only distinct nodes can mutate");
|
|
setTag(Tag);
|
|
init(Line, SizeInBits, AlignInBits, OffsetInBits, Flags);
|
|
}
|
|
|
|
public:
|
|
TempDIType clone() const {
|
|
return TempDIType(cast<DIType>(MDNode::clone().release()));
|
|
}
|
|
|
|
unsigned getLine() const { return Line; }
|
|
uint64_t getSizeInBits() const { return SizeInBits; }
|
|
uint32_t getAlignInBits() const { return AlignInBits; }
|
|
uint32_t getAlignInBytes() const { return getAlignInBits() / CHAR_BIT; }
|
|
uint64_t getOffsetInBits() const { return OffsetInBits; }
|
|
DIFlags getFlags() const { return Flags; }
|
|
|
|
DIScope *getScope() const { return cast_or_null<DIScope>(getRawScope()); }
|
|
StringRef getName() const { return getStringOperand(2); }
|
|
|
|
|
|
Metadata *getRawScope() const { return getOperand(1); }
|
|
MDString *getRawName() const { return getOperandAs<MDString>(2); }
|
|
|
|
/// Returns a new temporary DIType with updated Flags
|
|
TempDIType cloneWithFlags(DIFlags NewFlags) const {
|
|
auto NewTy = clone();
|
|
NewTy->Flags = NewFlags;
|
|
return NewTy;
|
|
}
|
|
|
|
bool isPrivate() const {
|
|
return (getFlags() & FlagAccessibility) == FlagPrivate;
|
|
}
|
|
bool isProtected() const {
|
|
return (getFlags() & FlagAccessibility) == FlagProtected;
|
|
}
|
|
bool isPublic() const {
|
|
return (getFlags() & FlagAccessibility) == FlagPublic;
|
|
}
|
|
bool isForwardDecl() const { return getFlags() & FlagFwdDecl; }
|
|
bool isAppleBlockExtension() const { return getFlags() & FlagAppleBlock; }
|
|
bool isVirtual() const { return getFlags() & FlagVirtual; }
|
|
bool isArtificial() const { return getFlags() & FlagArtificial; }
|
|
bool isObjectPointer() const { return getFlags() & FlagObjectPointer; }
|
|
bool isObjcClassComplete() const {
|
|
return getFlags() & FlagObjcClassComplete;
|
|
}
|
|
bool isVector() const { return getFlags() & FlagVector; }
|
|
bool isBitField() const { return getFlags() & FlagBitField; }
|
|
bool isStaticMember() const { return getFlags() & FlagStaticMember; }
|
|
bool isLValueReference() const { return getFlags() & FlagLValueReference; }
|
|
bool isRValueReference() const { return getFlags() & FlagRValueReference; }
|
|
bool isTypePassByValue() const { return getFlags() & FlagTypePassByValue; }
|
|
bool isTypePassByReference() const {
|
|
return getFlags() & FlagTypePassByReference;
|
|
}
|
|
bool isBigEndian() const { return getFlags() & FlagBigEndian; }
|
|
bool isLittleEndian() const { return getFlags() & FlagLittleEndian; }
|
|
bool getExportSymbols() const { return getFlags() & FlagExportSymbols; }
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
switch (MD->getMetadataID()) {
|
|
default:
|
|
return false;
|
|
case DIBasicTypeKind:
|
|
case DIStringTypeKind:
|
|
case DIDerivedTypeKind:
|
|
case DICompositeTypeKind:
|
|
case DISubroutineTypeKind:
|
|
return true;
|
|
}
|
|
}
|
|
};
|
|
|
|
/// Basic type, like 'int' or 'float'.
|
|
///
|
|
/// TODO: Split out DW_TAG_unspecified_type.
|
|
/// TODO: Drop unused accessors.
|
|
class DIBasicType : public DIType {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
unsigned Encoding;
|
|
|
|
DIBasicType(LLVMContext &C, StorageType Storage, unsigned Tag,
|
|
uint64_t SizeInBits, uint32_t AlignInBits, unsigned Encoding,
|
|
DIFlags Flags, ArrayRef<Metadata *> Ops)
|
|
: DIType(C, DIBasicTypeKind, Storage, Tag, 0, SizeInBits, AlignInBits, 0,
|
|
Flags, Ops),
|
|
Encoding(Encoding) {}
|
|
~DIBasicType() = default;
|
|
|
|
static DIBasicType *getImpl(LLVMContext &Context, unsigned Tag,
|
|
StringRef Name, uint64_t SizeInBits,
|
|
uint32_t AlignInBits, unsigned Encoding,
|
|
DIFlags Flags, StorageType Storage,
|
|
bool ShouldCreate = true) {
|
|
return getImpl(Context, Tag, getCanonicalMDString(Context, Name),
|
|
SizeInBits, AlignInBits, Encoding, Flags, Storage,
|
|
ShouldCreate);
|
|
}
|
|
static DIBasicType *getImpl(LLVMContext &Context, unsigned Tag,
|
|
MDString *Name, uint64_t SizeInBits,
|
|
uint32_t AlignInBits, unsigned Encoding,
|
|
DIFlags Flags, StorageType Storage,
|
|
bool ShouldCreate = true);
|
|
|
|
TempDIBasicType cloneImpl() const {
|
|
return getTemporary(getContext(), getTag(), getName(), getSizeInBits(),
|
|
getAlignInBits(), getEncoding(), getFlags());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DIBasicType, (unsigned Tag, StringRef Name),
|
|
(Tag, Name, 0, 0, 0, FlagZero))
|
|
DEFINE_MDNODE_GET(DIBasicType,
|
|
(unsigned Tag, StringRef Name, uint64_t SizeInBits),
|
|
(Tag, Name, SizeInBits, 0, 0, FlagZero))
|
|
DEFINE_MDNODE_GET(DIBasicType,
|
|
(unsigned Tag, MDString *Name, uint64_t SizeInBits),
|
|
(Tag, Name, SizeInBits, 0, 0, FlagZero))
|
|
DEFINE_MDNODE_GET(DIBasicType,
|
|
(unsigned Tag, StringRef Name, uint64_t SizeInBits,
|
|
uint32_t AlignInBits, unsigned Encoding, DIFlags Flags),
|
|
(Tag, Name, SizeInBits, AlignInBits, Encoding, Flags))
|
|
DEFINE_MDNODE_GET(DIBasicType,
|
|
(unsigned Tag, MDString *Name, uint64_t SizeInBits,
|
|
uint32_t AlignInBits, unsigned Encoding, DIFlags Flags),
|
|
(Tag, Name, SizeInBits, AlignInBits, Encoding, Flags))
|
|
|
|
TempDIBasicType clone() const { return cloneImpl(); }
|
|
|
|
unsigned getEncoding() const { return Encoding; }
|
|
|
|
enum class Signedness { Signed, Unsigned };
|
|
|
|
/// Return the signedness of this type, or None if this type is neither
|
|
/// signed nor unsigned.
|
|
Optional<Signedness> getSignedness() const;
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DIBasicTypeKind;
|
|
}
|
|
};
|
|
|
|
/// String type, Fortran CHARACTER(n)
|
|
class DIStringType : public DIType {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
unsigned Encoding;
|
|
|
|
DIStringType(LLVMContext &C, StorageType Storage, unsigned Tag,
|
|
uint64_t SizeInBits, uint32_t AlignInBits, unsigned Encoding,
|
|
ArrayRef<Metadata *> Ops)
|
|
: DIType(C, DIStringTypeKind, Storage, Tag, 0, SizeInBits, AlignInBits, 0,
|
|
FlagZero, Ops),
|
|
Encoding(Encoding) {}
|
|
~DIStringType() = default;
|
|
|
|
static DIStringType *getImpl(LLVMContext &Context, unsigned Tag,
|
|
StringRef Name, Metadata *StringLength,
|
|
Metadata *StrLenExp, uint64_t SizeInBits,
|
|
uint32_t AlignInBits, unsigned Encoding,
|
|
StorageType Storage, bool ShouldCreate = true) {
|
|
return getImpl(Context, Tag, getCanonicalMDString(Context, Name),
|
|
StringLength, StrLenExp, SizeInBits, AlignInBits, Encoding,
|
|
Storage, ShouldCreate);
|
|
}
|
|
static DIStringType *getImpl(LLVMContext &Context, unsigned Tag,
|
|
MDString *Name, Metadata *StringLength,
|
|
Metadata *StrLenExp, uint64_t SizeInBits,
|
|
uint32_t AlignInBits, unsigned Encoding,
|
|
StorageType Storage, bool ShouldCreate = true);
|
|
|
|
TempDIStringType cloneImpl() const {
|
|
return getTemporary(getContext(), getTag(), getRawName(),
|
|
getRawStringLength(), getRawStringLengthExp(),
|
|
getSizeInBits(), getAlignInBits(), getEncoding());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DIStringType,
|
|
(unsigned Tag, StringRef Name, uint64_t SizeInBits,
|
|
uint32_t AlignInBits),
|
|
(Tag, Name, nullptr, nullptr, SizeInBits, AlignInBits, 0))
|
|
DEFINE_MDNODE_GET(DIStringType,
|
|
(unsigned Tag, MDString *Name, Metadata *StringLength,
|
|
Metadata *StringLengthExp, uint64_t SizeInBits,
|
|
uint32_t AlignInBits, unsigned Encoding),
|
|
(Tag, Name, StringLength, StringLengthExp, SizeInBits,
|
|
AlignInBits, Encoding))
|
|
DEFINE_MDNODE_GET(DIStringType,
|
|
(unsigned Tag, StringRef Name, Metadata *StringLength,
|
|
Metadata *StringLengthExp, uint64_t SizeInBits,
|
|
uint32_t AlignInBits, unsigned Encoding),
|
|
(Tag, Name, StringLength, StringLengthExp, SizeInBits,
|
|
AlignInBits, Encoding))
|
|
|
|
TempDIStringType clone() const { return cloneImpl(); }
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DIStringTypeKind;
|
|
}
|
|
|
|
DIVariable *getStringLength() const {
|
|
return cast_or_null<DIVariable>(getRawStringLength());
|
|
}
|
|
|
|
DIExpression *getStringLengthExp() const {
|
|
return cast_or_null<DIExpression>(getRawStringLengthExp());
|
|
}
|
|
|
|
unsigned getEncoding() const { return Encoding; }
|
|
|
|
Metadata *getRawStringLength() const { return getOperand(3); }
|
|
|
|
Metadata *getRawStringLengthExp() const { return getOperand(4); }
|
|
};
|
|
|
|
/// Derived types.
|
|
///
|
|
/// This includes qualified types, pointers, references, friends, typedefs, and
|
|
/// class members.
|
|
///
|
|
/// TODO: Split out members (inheritance, fields, methods, etc.).
|
|
class DIDerivedType : public DIType {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
/// The DWARF address space of the memory pointed to or referenced by a
|
|
/// pointer or reference type respectively.
|
|
Optional<unsigned> DWARFAddressSpace;
|
|
|
|
DIDerivedType(LLVMContext &C, StorageType Storage, unsigned Tag,
|
|
unsigned Line, uint64_t SizeInBits, uint32_t AlignInBits,
|
|
uint64_t OffsetInBits, Optional<unsigned> DWARFAddressSpace,
|
|
DIFlags Flags, ArrayRef<Metadata *> Ops)
|
|
: DIType(C, DIDerivedTypeKind, Storage, Tag, Line, SizeInBits,
|
|
AlignInBits, OffsetInBits, Flags, Ops),
|
|
DWARFAddressSpace(DWARFAddressSpace) {}
|
|
~DIDerivedType() = default;
|
|
|
|
static DIDerivedType *
|
|
getImpl(LLVMContext &Context, unsigned Tag, StringRef Name, DIFile *File,
|
|
unsigned Line, DIScope *Scope, DIType *BaseType, uint64_t SizeInBits,
|
|
uint32_t AlignInBits, uint64_t OffsetInBits,
|
|
Optional<unsigned> DWARFAddressSpace, DIFlags Flags,
|
|
Metadata *ExtraData, StorageType Storage, bool ShouldCreate = true) {
|
|
return getImpl(Context, Tag, getCanonicalMDString(Context, Name), File,
|
|
Line, Scope, BaseType, SizeInBits, AlignInBits, OffsetInBits,
|
|
DWARFAddressSpace, Flags, ExtraData, Storage, ShouldCreate);
|
|
}
|
|
static DIDerivedType *getImpl(LLVMContext &Context, unsigned Tag,
|
|
MDString *Name, Metadata *File, unsigned Line,
|
|
Metadata *Scope, Metadata *BaseType,
|
|
uint64_t SizeInBits, uint32_t AlignInBits,
|
|
uint64_t OffsetInBits,
|
|
Optional<unsigned> DWARFAddressSpace,
|
|
DIFlags Flags, Metadata *ExtraData,
|
|
StorageType Storage, bool ShouldCreate = true);
|
|
|
|
TempDIDerivedType cloneImpl() const {
|
|
return getTemporary(getContext(), getTag(), getName(), getFile(), getLine(),
|
|
getScope(), getBaseType(), getSizeInBits(),
|
|
getAlignInBits(), getOffsetInBits(),
|
|
getDWARFAddressSpace(), getFlags(), getExtraData());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DIDerivedType,
|
|
(unsigned Tag, MDString *Name, Metadata *File,
|
|
unsigned Line, Metadata *Scope, Metadata *BaseType,
|
|
uint64_t SizeInBits, uint32_t AlignInBits,
|
|
uint64_t OffsetInBits,
|
|
Optional<unsigned> DWARFAddressSpace, DIFlags Flags,
|
|
Metadata *ExtraData = nullptr),
|
|
(Tag, Name, File, Line, Scope, BaseType, SizeInBits,
|
|
AlignInBits, OffsetInBits, DWARFAddressSpace, Flags,
|
|
ExtraData))
|
|
DEFINE_MDNODE_GET(DIDerivedType,
|
|
(unsigned Tag, StringRef Name, DIFile *File, unsigned Line,
|
|
DIScope *Scope, DIType *BaseType, uint64_t SizeInBits,
|
|
uint32_t AlignInBits, uint64_t OffsetInBits,
|
|
Optional<unsigned> DWARFAddressSpace, DIFlags Flags,
|
|
Metadata *ExtraData = nullptr),
|
|
(Tag, Name, File, Line, Scope, BaseType, SizeInBits,
|
|
AlignInBits, OffsetInBits, DWARFAddressSpace, Flags,
|
|
ExtraData))
|
|
|
|
TempDIDerivedType clone() const { return cloneImpl(); }
|
|
|
|
/// Get the base type this is derived from.
|
|
DIType *getBaseType() const { return cast_or_null<DIType>(getRawBaseType()); }
|
|
Metadata *getRawBaseType() const { return getOperand(3); }
|
|
|
|
/// \returns The DWARF address space of the memory pointed to or referenced by
|
|
/// a pointer or reference type respectively.
|
|
Optional<unsigned> getDWARFAddressSpace() const { return DWARFAddressSpace; }
|
|
|
|
/// Get extra data associated with this derived type.
|
|
///
|
|
/// Class type for pointer-to-members, objective-c property node for ivars,
|
|
/// global constant wrapper for static members, or virtual base pointer offset
|
|
/// for inheritance.
|
|
///
|
|
/// TODO: Separate out types that need this extra operand: pointer-to-member
|
|
/// types and member fields (static members and ivars).
|
|
Metadata *getExtraData() const { return getRawExtraData(); }
|
|
Metadata *getRawExtraData() const { return getOperand(4); }
|
|
|
|
/// Get casted version of extra data.
|
|
/// @{
|
|
DIType *getClassType() const {
|
|
assert(getTag() == dwarf::DW_TAG_ptr_to_member_type);
|
|
return cast_or_null<DIType>(getExtraData());
|
|
}
|
|
|
|
DIObjCProperty *getObjCProperty() const {
|
|
return dyn_cast_or_null<DIObjCProperty>(getExtraData());
|
|
}
|
|
|
|
uint32_t getVBPtrOffset() const {
|
|
assert(getTag() == dwarf::DW_TAG_inheritance);
|
|
if (auto *CM = cast_or_null<ConstantAsMetadata>(getExtraData()))
|
|
if (auto *CI = dyn_cast_or_null<ConstantInt>(CM->getValue()))
|
|
return static_cast<uint32_t>(CI->getZExtValue());
|
|
return 0;
|
|
}
|
|
|
|
Constant *getStorageOffsetInBits() const {
|
|
assert(getTag() == dwarf::DW_TAG_member && isBitField());
|
|
if (auto *C = cast_or_null<ConstantAsMetadata>(getExtraData()))
|
|
return C->getValue();
|
|
return nullptr;
|
|
}
|
|
|
|
Constant *getConstant() const {
|
|
assert(getTag() == dwarf::DW_TAG_member && isStaticMember());
|
|
if (auto *C = cast_or_null<ConstantAsMetadata>(getExtraData()))
|
|
return C->getValue();
|
|
return nullptr;
|
|
}
|
|
Constant *getDiscriminantValue() const {
|
|
assert(getTag() == dwarf::DW_TAG_member && !isStaticMember());
|
|
if (auto *C = cast_or_null<ConstantAsMetadata>(getExtraData()))
|
|
return C->getValue();
|
|
return nullptr;
|
|
}
|
|
/// @}
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DIDerivedTypeKind;
|
|
}
|
|
};
|
|
|
|
/// Composite types.
|
|
///
|
|
/// TODO: Detach from DerivedTypeBase (split out MDEnumType?).
|
|
/// TODO: Create a custom, unrelated node for DW_TAG_array_type.
|
|
class DICompositeType : public DIType {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
unsigned RuntimeLang;
|
|
|
|
DICompositeType(LLVMContext &C, StorageType Storage, unsigned Tag,
|
|
unsigned Line, unsigned RuntimeLang, uint64_t SizeInBits,
|
|
uint32_t AlignInBits, uint64_t OffsetInBits, DIFlags Flags,
|
|
ArrayRef<Metadata *> Ops)
|
|
: DIType(C, DICompositeTypeKind, Storage, Tag, Line, SizeInBits,
|
|
AlignInBits, OffsetInBits, Flags, Ops),
|
|
RuntimeLang(RuntimeLang) {}
|
|
~DICompositeType() = default;
|
|
|
|
/// Change fields in place.
|
|
void mutate(unsigned Tag, unsigned Line, unsigned RuntimeLang,
|
|
uint64_t SizeInBits, uint32_t AlignInBits,
|
|
uint64_t OffsetInBits, DIFlags Flags) {
|
|
assert(isDistinct() && "Only distinct nodes can mutate");
|
|
assert(getRawIdentifier() && "Only ODR-uniqued nodes should mutate");
|
|
this->RuntimeLang = RuntimeLang;
|
|
DIType::mutate(Tag, Line, SizeInBits, AlignInBits, OffsetInBits, Flags);
|
|
}
|
|
|
|
static DICompositeType *
|
|
getImpl(LLVMContext &Context, unsigned Tag, StringRef Name, Metadata *File,
|
|
unsigned Line, DIScope *Scope, DIType *BaseType, uint64_t SizeInBits,
|
|
uint32_t AlignInBits, uint64_t OffsetInBits, DIFlags Flags,
|
|
DINodeArray Elements, unsigned RuntimeLang, DIType *VTableHolder,
|
|
DITemplateParameterArray TemplateParams, StringRef Identifier,
|
|
DIDerivedType *Discriminator, Metadata *DataLocation,
|
|
Metadata *Associated, Metadata *Allocated, Metadata *Rank,
|
|
StorageType Storage, bool ShouldCreate = true) {
|
|
return getImpl(
|
|
Context, Tag, getCanonicalMDString(Context, Name), File, Line, Scope,
|
|
BaseType, SizeInBits, AlignInBits, OffsetInBits, Flags, Elements.get(),
|
|
RuntimeLang, VTableHolder, TemplateParams.get(),
|
|
getCanonicalMDString(Context, Identifier), Discriminator, DataLocation,
|
|
Associated, Allocated, Rank, Storage, ShouldCreate);
|
|
}
|
|
static DICompositeType *
|
|
getImpl(LLVMContext &Context, unsigned Tag, MDString *Name, Metadata *File,
|
|
unsigned Line, Metadata *Scope, Metadata *BaseType,
|
|
uint64_t SizeInBits, uint32_t AlignInBits, uint64_t OffsetInBits,
|
|
DIFlags Flags, Metadata *Elements, unsigned RuntimeLang,
|
|
Metadata *VTableHolder, Metadata *TemplateParams,
|
|
MDString *Identifier, Metadata *Discriminator, Metadata *DataLocation,
|
|
Metadata *Associated, Metadata *Allocated, Metadata *Rank,
|
|
StorageType Storage, bool ShouldCreate = true);
|
|
|
|
TempDICompositeType cloneImpl() const {
|
|
return getTemporary(getContext(), getTag(), getName(), getFile(), getLine(),
|
|
getScope(), getBaseType(), getSizeInBits(),
|
|
getAlignInBits(), getOffsetInBits(), getFlags(),
|
|
getElements(), getRuntimeLang(), getVTableHolder(),
|
|
getTemplateParams(), getIdentifier(),
|
|
getDiscriminator(), getRawDataLocation(),
|
|
getRawAssociated(), getRawAllocated(), getRawRank());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(
|
|
DICompositeType,
|
|
(unsigned Tag, StringRef Name, DIFile *File, unsigned Line,
|
|
DIScope *Scope, DIType *BaseType, uint64_t SizeInBits,
|
|
uint32_t AlignInBits, uint64_t OffsetInBits, DIFlags Flags,
|
|
DINodeArray Elements, unsigned RuntimeLang, DIType *VTableHolder,
|
|
DITemplateParameterArray TemplateParams = nullptr,
|
|
StringRef Identifier = "", DIDerivedType *Discriminator = nullptr,
|
|
Metadata *DataLocation = nullptr, Metadata *Associated = nullptr,
|
|
Metadata *Allocated = nullptr, Metadata *Rank = nullptr),
|
|
(Tag, Name, File, Line, Scope, BaseType, SizeInBits, AlignInBits,
|
|
OffsetInBits, Flags, Elements, RuntimeLang, VTableHolder, TemplateParams,
|
|
Identifier, Discriminator, DataLocation, Associated, Allocated, Rank))
|
|
DEFINE_MDNODE_GET(
|
|
DICompositeType,
|
|
(unsigned Tag, MDString *Name, Metadata *File, unsigned Line,
|
|
Metadata *Scope, Metadata *BaseType, uint64_t SizeInBits,
|
|
uint32_t AlignInBits, uint64_t OffsetInBits, DIFlags Flags,
|
|
Metadata *Elements, unsigned RuntimeLang, Metadata *VTableHolder,
|
|
Metadata *TemplateParams = nullptr, MDString *Identifier = nullptr,
|
|
Metadata *Discriminator = nullptr, Metadata *DataLocation = nullptr,
|
|
Metadata *Associated = nullptr, Metadata *Allocated = nullptr,
|
|
Metadata *Rank = nullptr),
|
|
(Tag, Name, File, Line, Scope, BaseType, SizeInBits, AlignInBits,
|
|
OffsetInBits, Flags, Elements, RuntimeLang, VTableHolder, TemplateParams,
|
|
Identifier, Discriminator, DataLocation, Associated, Allocated, Rank))
|
|
|
|
TempDICompositeType clone() const { return cloneImpl(); }
|
|
|
|
/// Get a DICompositeType with the given ODR identifier.
|
|
///
|
|
/// If \a LLVMContext::isODRUniquingDebugTypes(), gets the mapped
|
|
/// DICompositeType for the given ODR \c Identifier. If none exists, creates
|
|
/// a new node.
|
|
///
|
|
/// Else, returns \c nullptr.
|
|
static DICompositeType *
|
|
getODRType(LLVMContext &Context, MDString &Identifier, unsigned Tag,
|
|
MDString *Name, Metadata *File, unsigned Line, Metadata *Scope,
|
|
Metadata *BaseType, uint64_t SizeInBits, uint32_t AlignInBits,
|
|
uint64_t OffsetInBits, DIFlags Flags, Metadata *Elements,
|
|
unsigned RuntimeLang, Metadata *VTableHolder,
|
|
Metadata *TemplateParams, Metadata *Discriminator,
|
|
Metadata *DataLocation, Metadata *Associated, Metadata *Allocated,
|
|
Metadata *Rank);
|
|
static DICompositeType *getODRTypeIfExists(LLVMContext &Context,
|
|
MDString &Identifier);
|
|
|
|
/// Build a DICompositeType with the given ODR identifier.
|
|
///
|
|
/// Looks up the mapped DICompositeType for the given ODR \c Identifier. If
|
|
/// it doesn't exist, creates a new one. If it does exist and \a
|
|
/// isForwardDecl(), and the new arguments would be a definition, mutates the
|
|
/// the type in place. In either case, returns the type.
|
|
///
|
|
/// If not \a LLVMContext::isODRUniquingDebugTypes(), this function returns
|
|
/// nullptr.
|
|
static DICompositeType *
|
|
buildODRType(LLVMContext &Context, MDString &Identifier, unsigned Tag,
|
|
MDString *Name, Metadata *File, unsigned Line, Metadata *Scope,
|
|
Metadata *BaseType, uint64_t SizeInBits, uint32_t AlignInBits,
|
|
uint64_t OffsetInBits, DIFlags Flags, Metadata *Elements,
|
|
unsigned RuntimeLang, Metadata *VTableHolder,
|
|
Metadata *TemplateParams, Metadata *Discriminator,
|
|
Metadata *DataLocation, Metadata *Associated,
|
|
Metadata *Allocated, Metadata *Rank);
|
|
|
|
DIType *getBaseType() const { return cast_or_null<DIType>(getRawBaseType()); }
|
|
DINodeArray getElements() const {
|
|
return cast_or_null<MDTuple>(getRawElements());
|
|
}
|
|
DIType *getVTableHolder() const {
|
|
return cast_or_null<DIType>(getRawVTableHolder());
|
|
}
|
|
DITemplateParameterArray getTemplateParams() const {
|
|
return cast_or_null<MDTuple>(getRawTemplateParams());
|
|
}
|
|
StringRef getIdentifier() const { return getStringOperand(7); }
|
|
unsigned getRuntimeLang() const { return RuntimeLang; }
|
|
|
|
Metadata *getRawBaseType() const { return getOperand(3); }
|
|
Metadata *getRawElements() const { return getOperand(4); }
|
|
Metadata *getRawVTableHolder() const { return getOperand(5); }
|
|
Metadata *getRawTemplateParams() const { return getOperand(6); }
|
|
MDString *getRawIdentifier() const { return getOperandAs<MDString>(7); }
|
|
Metadata *getRawDiscriminator() const { return getOperand(8); }
|
|
DIDerivedType *getDiscriminator() const { return getOperandAs<DIDerivedType>(8); }
|
|
Metadata *getRawDataLocation() const { return getOperand(9); }
|
|
DIVariable *getDataLocation() const {
|
|
return dyn_cast_or_null<DIVariable>(getRawDataLocation());
|
|
}
|
|
DIExpression *getDataLocationExp() const {
|
|
return dyn_cast_or_null<DIExpression>(getRawDataLocation());
|
|
}
|
|
Metadata *getRawAssociated() const { return getOperand(10); }
|
|
DIVariable *getAssociated() const {
|
|
return dyn_cast_or_null<DIVariable>(getRawAssociated());
|
|
}
|
|
DIExpression *getAssociatedExp() const {
|
|
return dyn_cast_or_null<DIExpression>(getRawAssociated());
|
|
}
|
|
Metadata *getRawAllocated() const { return getOperand(11); }
|
|
DIVariable *getAllocated() const {
|
|
return dyn_cast_or_null<DIVariable>(getRawAllocated());
|
|
}
|
|
DIExpression *getAllocatedExp() const {
|
|
return dyn_cast_or_null<DIExpression>(getRawAllocated());
|
|
}
|
|
Metadata *getRawRank() const { return getOperand(12); }
|
|
ConstantInt *getRankConst() const {
|
|
if (auto *MD = dyn_cast_or_null<ConstantAsMetadata>(getRawRank()))
|
|
return dyn_cast_or_null<ConstantInt>(MD->getValue());
|
|
return nullptr;
|
|
}
|
|
DIExpression *getRankExp() const {
|
|
return dyn_cast_or_null<DIExpression>(getRawRank());
|
|
}
|
|
|
|
/// Replace operands.
|
|
///
|
|
/// If this \a isUniqued() and not \a isResolved(), on a uniquing collision
|
|
/// this will be RAUW'ed and deleted. Use a \a TrackingMDRef to keep track
|
|
/// of its movement if necessary.
|
|
/// @{
|
|
void replaceElements(DINodeArray Elements) {
|
|
#ifndef NDEBUG
|
|
for (DINode *Op : getElements())
|
|
assert(is_contained(Elements->operands(), Op) &&
|
|
"Lost a member during member list replacement");
|
|
#endif
|
|
replaceOperandWith(4, Elements.get());
|
|
}
|
|
|
|
void replaceVTableHolder(DIType *VTableHolder) {
|
|
replaceOperandWith(5, VTableHolder);
|
|
}
|
|
|
|
void replaceTemplateParams(DITemplateParameterArray TemplateParams) {
|
|
replaceOperandWith(6, TemplateParams.get());
|
|
}
|
|
/// @}
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DICompositeTypeKind;
|
|
}
|
|
};
|
|
|
|
/// Type array for a subprogram.
|
|
///
|
|
/// TODO: Fold the array of types in directly as operands.
|
|
class DISubroutineType : public DIType {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
/// The calling convention used with DW_AT_calling_convention. Actually of
|
|
/// type dwarf::CallingConvention.
|
|
uint8_t CC;
|
|
|
|
DISubroutineType(LLVMContext &C, StorageType Storage, DIFlags Flags,
|
|
uint8_t CC, ArrayRef<Metadata *> Ops)
|
|
: DIType(C, DISubroutineTypeKind, Storage, dwarf::DW_TAG_subroutine_type,
|
|
0, 0, 0, 0, Flags, Ops),
|
|
CC(CC) {}
|
|
~DISubroutineType() = default;
|
|
|
|
static DISubroutineType *getImpl(LLVMContext &Context, DIFlags Flags,
|
|
uint8_t CC, DITypeRefArray TypeArray,
|
|
StorageType Storage,
|
|
bool ShouldCreate = true) {
|
|
return getImpl(Context, Flags, CC, TypeArray.get(), Storage, ShouldCreate);
|
|
}
|
|
static DISubroutineType *getImpl(LLVMContext &Context, DIFlags Flags,
|
|
uint8_t CC, Metadata *TypeArray,
|
|
StorageType Storage,
|
|
bool ShouldCreate = true);
|
|
|
|
TempDISubroutineType cloneImpl() const {
|
|
return getTemporary(getContext(), getFlags(), getCC(), getTypeArray());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DISubroutineType,
|
|
(DIFlags Flags, uint8_t CC, DITypeRefArray TypeArray),
|
|
(Flags, CC, TypeArray))
|
|
DEFINE_MDNODE_GET(DISubroutineType,
|
|
(DIFlags Flags, uint8_t CC, Metadata *TypeArray),
|
|
(Flags, CC, TypeArray))
|
|
|
|
TempDISubroutineType clone() const { return cloneImpl(); }
|
|
|
|
uint8_t getCC() const { return CC; }
|
|
|
|
DITypeRefArray getTypeArray() const {
|
|
return cast_or_null<MDTuple>(getRawTypeArray());
|
|
}
|
|
|
|
Metadata *getRawTypeArray() const { return getOperand(3); }
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DISubroutineTypeKind;
|
|
}
|
|
};
|
|
|
|
/// Compile unit.
|
|
class DICompileUnit : public DIScope {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
public:
|
|
enum DebugEmissionKind : unsigned {
|
|
NoDebug = 0,
|
|
FullDebug,
|
|
LineTablesOnly,
|
|
DebugDirectivesOnly,
|
|
LastEmissionKind = DebugDirectivesOnly
|
|
};
|
|
|
|
enum class DebugNameTableKind : unsigned {
|
|
Default = 0,
|
|
GNU = 1,
|
|
None = 2,
|
|
LastDebugNameTableKind = None
|
|
};
|
|
|
|
static Optional<DebugEmissionKind> getEmissionKind(StringRef Str);
|
|
static const char *emissionKindString(DebugEmissionKind EK);
|
|
static Optional<DebugNameTableKind> getNameTableKind(StringRef Str);
|
|
static const char *nameTableKindString(DebugNameTableKind PK);
|
|
|
|
private:
|
|
unsigned SourceLanguage;
|
|
bool IsOptimized;
|
|
unsigned RuntimeVersion;
|
|
unsigned EmissionKind;
|
|
uint64_t DWOId;
|
|
bool SplitDebugInlining;
|
|
bool DebugInfoForProfiling;
|
|
unsigned NameTableKind;
|
|
bool RangesBaseAddress;
|
|
|
|
DICompileUnit(LLVMContext &C, StorageType Storage, unsigned SourceLanguage,
|
|
bool IsOptimized, unsigned RuntimeVersion,
|
|
unsigned EmissionKind, uint64_t DWOId, bool SplitDebugInlining,
|
|
bool DebugInfoForProfiling, unsigned NameTableKind,
|
|
bool RangesBaseAddress, ArrayRef<Metadata *> Ops)
|
|
: DIScope(C, DICompileUnitKind, Storage, dwarf::DW_TAG_compile_unit, Ops),
|
|
SourceLanguage(SourceLanguage), IsOptimized(IsOptimized),
|
|
RuntimeVersion(RuntimeVersion), EmissionKind(EmissionKind),
|
|
DWOId(DWOId), SplitDebugInlining(SplitDebugInlining),
|
|
DebugInfoForProfiling(DebugInfoForProfiling),
|
|
NameTableKind(NameTableKind), RangesBaseAddress(RangesBaseAddress) {
|
|
assert(Storage != Uniqued);
|
|
}
|
|
~DICompileUnit() = default;
|
|
|
|
static DICompileUnit *
|
|
getImpl(LLVMContext &Context, unsigned SourceLanguage, DIFile *File,
|
|
StringRef Producer, bool IsOptimized, StringRef Flags,
|
|
unsigned RuntimeVersion, StringRef SplitDebugFilename,
|
|
unsigned EmissionKind, DICompositeTypeArray EnumTypes,
|
|
DIScopeArray RetainedTypes,
|
|
DIGlobalVariableExpressionArray GlobalVariables,
|
|
DIImportedEntityArray ImportedEntities, DIMacroNodeArray Macros,
|
|
uint64_t DWOId, bool SplitDebugInlining, bool DebugInfoForProfiling,
|
|
unsigned NameTableKind, bool RangesBaseAddress, StringRef SysRoot,
|
|
StringRef SDK, StorageType Storage, bool ShouldCreate = true) {
|
|
return getImpl(
|
|
Context, SourceLanguage, File, getCanonicalMDString(Context, Producer),
|
|
IsOptimized, getCanonicalMDString(Context, Flags), RuntimeVersion,
|
|
getCanonicalMDString(Context, SplitDebugFilename), EmissionKind,
|
|
EnumTypes.get(), RetainedTypes.get(), GlobalVariables.get(),
|
|
ImportedEntities.get(), Macros.get(), DWOId, SplitDebugInlining,
|
|
DebugInfoForProfiling, NameTableKind, RangesBaseAddress,
|
|
getCanonicalMDString(Context, SysRoot),
|
|
getCanonicalMDString(Context, SDK), Storage, ShouldCreate);
|
|
}
|
|
static DICompileUnit *
|
|
getImpl(LLVMContext &Context, unsigned SourceLanguage, Metadata *File,
|
|
MDString *Producer, bool IsOptimized, MDString *Flags,
|
|
unsigned RuntimeVersion, MDString *SplitDebugFilename,
|
|
unsigned EmissionKind, Metadata *EnumTypes, Metadata *RetainedTypes,
|
|
Metadata *GlobalVariables, Metadata *ImportedEntities,
|
|
Metadata *Macros, uint64_t DWOId, bool SplitDebugInlining,
|
|
bool DebugInfoForProfiling, unsigned NameTableKind,
|
|
bool RangesBaseAddress, MDString *SysRoot, MDString *SDK,
|
|
StorageType Storage, bool ShouldCreate = true);
|
|
|
|
TempDICompileUnit cloneImpl() const {
|
|
return getTemporary(
|
|
getContext(), getSourceLanguage(), getFile(), getProducer(),
|
|
isOptimized(), getFlags(), getRuntimeVersion(), getSplitDebugFilename(),
|
|
getEmissionKind(), getEnumTypes(), getRetainedTypes(),
|
|
getGlobalVariables(), getImportedEntities(), getMacros(), DWOId,
|
|
getSplitDebugInlining(), getDebugInfoForProfiling(), getNameTableKind(),
|
|
getRangesBaseAddress(), getSysRoot(), getSDK());
|
|
}
|
|
|
|
public:
|
|
static void get() = delete;
|
|
static void getIfExists() = delete;
|
|
|
|
DEFINE_MDNODE_GET_DISTINCT_TEMPORARY(
|
|
DICompileUnit,
|
|
(unsigned SourceLanguage, DIFile *File, StringRef Producer,
|
|
bool IsOptimized, StringRef Flags, unsigned RuntimeVersion,
|
|
StringRef SplitDebugFilename, DebugEmissionKind EmissionKind,
|
|
DICompositeTypeArray EnumTypes, DIScopeArray RetainedTypes,
|
|
DIGlobalVariableExpressionArray GlobalVariables,
|
|
DIImportedEntityArray ImportedEntities, DIMacroNodeArray Macros,
|
|
uint64_t DWOId, bool SplitDebugInlining, bool DebugInfoForProfiling,
|
|
DebugNameTableKind NameTableKind, bool RangesBaseAddress,
|
|
StringRef SysRoot, StringRef SDK),
|
|
(SourceLanguage, File, Producer, IsOptimized, Flags, RuntimeVersion,
|
|
SplitDebugFilename, EmissionKind, EnumTypes, RetainedTypes,
|
|
GlobalVariables, ImportedEntities, Macros, DWOId, SplitDebugInlining,
|
|
DebugInfoForProfiling, (unsigned)NameTableKind, RangesBaseAddress,
|
|
SysRoot, SDK))
|
|
DEFINE_MDNODE_GET_DISTINCT_TEMPORARY(
|
|
DICompileUnit,
|
|
(unsigned SourceLanguage, Metadata *File, MDString *Producer,
|
|
bool IsOptimized, MDString *Flags, unsigned RuntimeVersion,
|
|
MDString *SplitDebugFilename, unsigned EmissionKind, Metadata *EnumTypes,
|
|
Metadata *RetainedTypes, Metadata *GlobalVariables,
|
|
Metadata *ImportedEntities, Metadata *Macros, uint64_t DWOId,
|
|
bool SplitDebugInlining, bool DebugInfoForProfiling,
|
|
unsigned NameTableKind, bool RangesBaseAddress, MDString *SysRoot,
|
|
MDString *SDK),
|
|
(SourceLanguage, File, Producer, IsOptimized, Flags, RuntimeVersion,
|
|
SplitDebugFilename, EmissionKind, EnumTypes, RetainedTypes,
|
|
GlobalVariables, ImportedEntities, Macros, DWOId, SplitDebugInlining,
|
|
DebugInfoForProfiling, NameTableKind, RangesBaseAddress, SysRoot, SDK))
|
|
|
|
TempDICompileUnit clone() const { return cloneImpl(); }
|
|
|
|
unsigned getSourceLanguage() const { return SourceLanguage; }
|
|
bool isOptimized() const { return IsOptimized; }
|
|
unsigned getRuntimeVersion() const { return RuntimeVersion; }
|
|
DebugEmissionKind getEmissionKind() const {
|
|
return (DebugEmissionKind)EmissionKind;
|
|
}
|
|
bool isDebugDirectivesOnly() const {
|
|
return EmissionKind == DebugDirectivesOnly;
|
|
}
|
|
bool getDebugInfoForProfiling() const { return DebugInfoForProfiling; }
|
|
DebugNameTableKind getNameTableKind() const {
|
|
return (DebugNameTableKind)NameTableKind;
|
|
}
|
|
bool getRangesBaseAddress() const { return RangesBaseAddress; }
|
|
StringRef getProducer() const { return getStringOperand(1); }
|
|
StringRef getFlags() const { return getStringOperand(2); }
|
|
StringRef getSplitDebugFilename() const { return getStringOperand(3); }
|
|
DICompositeTypeArray getEnumTypes() const {
|
|
return cast_or_null<MDTuple>(getRawEnumTypes());
|
|
}
|
|
DIScopeArray getRetainedTypes() const {
|
|
return cast_or_null<MDTuple>(getRawRetainedTypes());
|
|
}
|
|
DIGlobalVariableExpressionArray getGlobalVariables() const {
|
|
return cast_or_null<MDTuple>(getRawGlobalVariables());
|
|
}
|
|
DIImportedEntityArray getImportedEntities() const {
|
|
return cast_or_null<MDTuple>(getRawImportedEntities());
|
|
}
|
|
DIMacroNodeArray getMacros() const {
|
|
return cast_or_null<MDTuple>(getRawMacros());
|
|
}
|
|
uint64_t getDWOId() const { return DWOId; }
|
|
void setDWOId(uint64_t DwoId) { DWOId = DwoId; }
|
|
bool getSplitDebugInlining() const { return SplitDebugInlining; }
|
|
void setSplitDebugInlining(bool SplitDebugInlining) {
|
|
this->SplitDebugInlining = SplitDebugInlining;
|
|
}
|
|
StringRef getSysRoot() const { return getStringOperand(9); }
|
|
StringRef getSDK() const { return getStringOperand(10); }
|
|
|
|
MDString *getRawProducer() const { return getOperandAs<MDString>(1); }
|
|
MDString *getRawFlags() const { return getOperandAs<MDString>(2); }
|
|
MDString *getRawSplitDebugFilename() const {
|
|
return getOperandAs<MDString>(3);
|
|
}
|
|
Metadata *getRawEnumTypes() const { return getOperand(4); }
|
|
Metadata *getRawRetainedTypes() const { return getOperand(5); }
|
|
Metadata *getRawGlobalVariables() const { return getOperand(6); }
|
|
Metadata *getRawImportedEntities() const { return getOperand(7); }
|
|
Metadata *getRawMacros() const { return getOperand(8); }
|
|
MDString *getRawSysRoot() const { return getOperandAs<MDString>(9); }
|
|
MDString *getRawSDK() const { return getOperandAs<MDString>(10); }
|
|
|
|
/// Replace arrays.
|
|
///
|
|
/// If this \a isUniqued() and not \a isResolved(), it will be RAUW'ed and
|
|
/// deleted on a uniquing collision. In practice, uniquing collisions on \a
|
|
/// DICompileUnit should be fairly rare.
|
|
/// @{
|
|
void replaceEnumTypes(DICompositeTypeArray N) {
|
|
replaceOperandWith(4, N.get());
|
|
}
|
|
void replaceRetainedTypes(DITypeArray N) {
|
|
replaceOperandWith(5, N.get());
|
|
}
|
|
void replaceGlobalVariables(DIGlobalVariableExpressionArray N) {
|
|
replaceOperandWith(6, N.get());
|
|
}
|
|
void replaceImportedEntities(DIImportedEntityArray N) {
|
|
replaceOperandWith(7, N.get());
|
|
}
|
|
void replaceMacros(DIMacroNodeArray N) { replaceOperandWith(8, N.get()); }
|
|
/// @}
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DICompileUnitKind;
|
|
}
|
|
};
|
|
|
|
/// A scope for locals.
|
|
///
|
|
/// A legal scope for lexical blocks, local variables, and debug info
|
|
/// locations. Subclasses are \a DISubprogram, \a DILexicalBlock, and \a
|
|
/// DILexicalBlockFile.
|
|
class DILocalScope : public DIScope {
|
|
protected:
|
|
DILocalScope(LLVMContext &C, unsigned ID, StorageType Storage, unsigned Tag,
|
|
ArrayRef<Metadata *> Ops)
|
|
: DIScope(C, ID, Storage, Tag, Ops) {}
|
|
~DILocalScope() = default;
|
|
|
|
public:
|
|
/// Get the subprogram for this scope.
|
|
///
|
|
/// Return this if it's an \a DISubprogram; otherwise, look up the scope
|
|
/// chain.
|
|
DISubprogram *getSubprogram() const;
|
|
|
|
/// Get the first non DILexicalBlockFile scope of this scope.
|
|
///
|
|
/// Return this if it's not a \a DILexicalBlockFIle; otherwise, look up the
|
|
/// scope chain.
|
|
DILocalScope *getNonLexicalBlockFileScope() const;
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DISubprogramKind ||
|
|
MD->getMetadataID() == DILexicalBlockKind ||
|
|
MD->getMetadataID() == DILexicalBlockFileKind;
|
|
}
|
|
};
|
|
|
|
/// Debug location.
|
|
///
|
|
/// A debug location in source code, used for debug info and otherwise.
|
|
class DILocation : public MDNode {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
DILocation(LLVMContext &C, StorageType Storage, unsigned Line,
|
|
unsigned Column, ArrayRef<Metadata *> MDs, bool ImplicitCode);
|
|
~DILocation() { dropAllReferences(); }
|
|
|
|
static DILocation *getImpl(LLVMContext &Context, unsigned Line,
|
|
unsigned Column, Metadata *Scope,
|
|
Metadata *InlinedAt, bool ImplicitCode,
|
|
StorageType Storage, bool ShouldCreate = true);
|
|
static DILocation *getImpl(LLVMContext &Context, unsigned Line,
|
|
unsigned Column, DILocalScope *Scope,
|
|
DILocation *InlinedAt, bool ImplicitCode,
|
|
StorageType Storage, bool ShouldCreate = true) {
|
|
return getImpl(Context, Line, Column, static_cast<Metadata *>(Scope),
|
|
static_cast<Metadata *>(InlinedAt), ImplicitCode, Storage,
|
|
ShouldCreate);
|
|
}
|
|
|
|
/// With a given unsigned int \p U, use up to 13 bits to represent it.
|
|
/// old_bit 1~5 --> new_bit 1~5
|
|
/// old_bit 6~12 --> new_bit 7~13
|
|
/// new_bit_6 is 0 if higher bits (7~13) are all 0
|
|
static unsigned getPrefixEncodingFromUnsigned(unsigned U) {
|
|
U &= 0xfff;
|
|
return U > 0x1f ? (((U & 0xfe0) << 1) | (U & 0x1f) | 0x20) : U;
|
|
}
|
|
|
|
/// Reverse transformation as getPrefixEncodingFromUnsigned.
|
|
static unsigned getUnsignedFromPrefixEncoding(unsigned U) {
|
|
if (U & 1)
|
|
return 0;
|
|
U >>= 1;
|
|
return (U & 0x20) ? (((U >> 1) & 0xfe0) | (U & 0x1f)) : (U & 0x1f);
|
|
}
|
|
|
|
/// Returns the next component stored in discriminator.
|
|
static unsigned getNextComponentInDiscriminator(unsigned D) {
|
|
if ((D & 1) == 0)
|
|
return D >> ((D & 0x40) ? 14 : 7);
|
|
else
|
|
return D >> 1;
|
|
}
|
|
|
|
TempDILocation cloneImpl() const {
|
|
// Get the raw scope/inlinedAt since it is possible to invoke this on
|
|
// a DILocation containing temporary metadata.
|
|
return getTemporary(getContext(), getLine(), getColumn(), getRawScope(),
|
|
getRawInlinedAt(), isImplicitCode());
|
|
}
|
|
|
|
static unsigned encodeComponent(unsigned C) {
|
|
return (C == 0) ? 1U : (getPrefixEncodingFromUnsigned(C) << 1);
|
|
}
|
|
|
|
static unsigned encodingBits(unsigned C) {
|
|
return (C == 0) ? 1 : (C > 0x1f ? 14 : 7);
|
|
}
|
|
|
|
public:
|
|
// Disallow replacing operands.
|
|
void replaceOperandWith(unsigned I, Metadata *New) = delete;
|
|
|
|
DEFINE_MDNODE_GET(DILocation,
|
|
(unsigned Line, unsigned Column, Metadata *Scope,
|
|
Metadata *InlinedAt = nullptr, bool ImplicitCode = false),
|
|
(Line, Column, Scope, InlinedAt, ImplicitCode))
|
|
DEFINE_MDNODE_GET(DILocation,
|
|
(unsigned Line, unsigned Column, DILocalScope *Scope,
|
|
DILocation *InlinedAt = nullptr,
|
|
bool ImplicitCode = false),
|
|
(Line, Column, Scope, InlinedAt, ImplicitCode))
|
|
|
|
/// Return a (temporary) clone of this.
|
|
TempDILocation clone() const { return cloneImpl(); }
|
|
|
|
unsigned getLine() const { return SubclassData32; }
|
|
unsigned getColumn() const { return SubclassData16; }
|
|
DILocalScope *getScope() const { return cast<DILocalScope>(getRawScope()); }
|
|
|
|
DILocation *getInlinedAt() const {
|
|
return cast_or_null<DILocation>(getRawInlinedAt());
|
|
}
|
|
|
|
/// Check if the location corresponds to an implicit code.
|
|
/// When the ImplicitCode flag is true, it means that the Instruction
|
|
/// with this DILocation has been added by the front-end but it hasn't been
|
|
/// written explicitly by the user (e.g. cleanup stuff in C++ put on a closing
|
|
/// bracket). It's useful for code coverage to not show a counter on "empty"
|
|
/// lines.
|
|
bool isImplicitCode() const { return ImplicitCode; }
|
|
void setImplicitCode(bool ImplicitCode) { this->ImplicitCode = ImplicitCode; }
|
|
|
|
DIFile *getFile() const { return getScope()->getFile(); }
|
|
StringRef getFilename() const { return getScope()->getFilename(); }
|
|
StringRef getDirectory() const { return getScope()->getDirectory(); }
|
|
Optional<StringRef> getSource() const { return getScope()->getSource(); }
|
|
|
|
/// Get the scope where this is inlined.
|
|
///
|
|
/// Walk through \a getInlinedAt() and return \a getScope() from the deepest
|
|
/// location.
|
|
DILocalScope *getInlinedAtScope() const {
|
|
if (auto *IA = getInlinedAt())
|
|
return IA->getInlinedAtScope();
|
|
return getScope();
|
|
}
|
|
|
|
/// Get the DWARF discriminator.
|
|
///
|
|
/// DWARF discriminators distinguish identical file locations between
|
|
/// instructions that are on different basic blocks.
|
|
///
|
|
/// There are 3 components stored in discriminator, from lower bits:
|
|
///
|
|
/// Base discriminator: assigned by AddDiscriminators pass to identify IRs
|
|
/// that are defined by the same source line, but
|
|
/// different basic blocks.
|
|
/// Duplication factor: assigned by optimizations that will scale down
|
|
/// the execution frequency of the original IR.
|
|
/// Copy Identifier: assigned by optimizations that clones the IR.
|
|
/// Each copy of the IR will be assigned an identifier.
|
|
///
|
|
/// Encoding:
|
|
///
|
|
/// The above 3 components are encoded into a 32bit unsigned integer in
|
|
/// order. If the lowest bit is 1, the current component is empty, and the
|
|
/// next component will start in the next bit. Otherwise, the current
|
|
/// component is non-empty, and its content starts in the next bit. The
|
|
/// value of each components is either 5 bit or 12 bit: if the 7th bit
|
|
/// is 0, the bit 2~6 (5 bits) are used to represent the component; if the
|
|
/// 7th bit is 1, the bit 2~6 (5 bits) and 8~14 (7 bits) are combined to
|
|
/// represent the component. Thus, the number of bits used for a component
|
|
/// is either 0 (if it and all the next components are empty); 1 - if it is
|
|
/// empty; 7 - if its value is up to and including 0x1f (lsb and msb are both
|
|
/// 0); or 14, if its value is up to and including 0x1ff. Note that the last
|
|
/// component is also capped at 0x1ff, even in the case when both first
|
|
/// components are 0, and we'd technically have 29 bits available.
|
|
///
|
|
/// For precise control over the data being encoded in the discriminator,
|
|
/// use encodeDiscriminator/decodeDiscriminator.
|
|
|
|
inline unsigned getDiscriminator() const;
|
|
|
|
// For the regular discriminator, it stands for all empty components if all
|
|
// the lowest 3 bits are non-zero and all higher 29 bits are unused(zero by
|
|
// default). Here we fully leverage the higher 29 bits for pseudo probe use.
|
|
// This is the format:
|
|
// [2:0] - 0x7
|
|
// [31:3] - pseudo probe fields guaranteed to be non-zero as a whole
|
|
// So if the lower 3 bits is non-zero and the others has at least one
|
|
// non-zero bit, it guarantees to be a pseudo probe discriminator
|
|
inline static bool isPseudoProbeDiscriminator(unsigned Discriminator) {
|
|
return ((Discriminator & 0x7) == 0x7) && (Discriminator & 0xFFFFFFF8);
|
|
}
|
|
|
|
/// Returns a new DILocation with updated \p Discriminator.
|
|
inline const DILocation *cloneWithDiscriminator(unsigned Discriminator) const;
|
|
|
|
/// Returns a new DILocation with updated base discriminator \p BD. Only the
|
|
/// base discriminator is set in the new DILocation, the other encoded values
|
|
/// are elided.
|
|
/// If the discriminator cannot be encoded, the function returns None.
|
|
inline Optional<const DILocation *> cloneWithBaseDiscriminator(unsigned BD) const;
|
|
|
|
/// Returns the duplication factor stored in the discriminator, or 1 if no
|
|
/// duplication factor (or 0) is encoded.
|
|
inline unsigned getDuplicationFactor() const;
|
|
|
|
/// Returns the copy identifier stored in the discriminator.
|
|
inline unsigned getCopyIdentifier() const;
|
|
|
|
/// Returns the base discriminator stored in the discriminator.
|
|
inline unsigned getBaseDiscriminator() const;
|
|
|
|
/// Returns a new DILocation with duplication factor \p DF * current
|
|
/// duplication factor encoded in the discriminator. The current duplication
|
|
/// factor is as defined by getDuplicationFactor().
|
|
/// Returns None if encoding failed.
|
|
inline Optional<const DILocation *> cloneByMultiplyingDuplicationFactor(unsigned DF) const;
|
|
|
|
/// When two instructions are combined into a single instruction we also
|
|
/// need to combine the original locations into a single location.
|
|
///
|
|
/// When the locations are the same we can use either location. When they
|
|
/// differ, we need a third location which is distinct from either. If they
|
|
/// have the same file/line but have a different discriminator we could
|
|
/// create a location with a new discriminator. If they are from different
|
|
/// files/lines the location is ambiguous and can't be represented in a line
|
|
/// entry. In this case, if \p GenerateLocation is true, we will set the
|
|
/// merged debug location as line 0 of the nearest common scope where the two
|
|
/// locations are inlined from.
|
|
///
|
|
/// \p GenerateLocation: Whether the merged location can be generated when
|
|
/// \p LocA and \p LocB differ.
|
|
static const DILocation *getMergedLocation(const DILocation *LocA,
|
|
const DILocation *LocB);
|
|
|
|
/// Try to combine the vector of locations passed as input in a single one.
|
|
/// This function applies getMergedLocation() repeatedly left-to-right.
|
|
///
|
|
/// \p Locs: The locations to be merged.
|
|
static
|
|
const DILocation *getMergedLocations(ArrayRef<const DILocation *> Locs);
|
|
|
|
/// Returns the base discriminator for a given encoded discriminator \p D.
|
|
static unsigned getBaseDiscriminatorFromDiscriminator(unsigned D) {
|
|
return getUnsignedFromPrefixEncoding(D);
|
|
}
|
|
|
|
/// Raw encoding of the discriminator. APIs such as cloneWithDuplicationFactor
|
|
/// have certain special case behavior (e.g. treating empty duplication factor
|
|
/// as the value '1').
|
|
/// This API, in conjunction with cloneWithDiscriminator, may be used to encode
|
|
/// the raw values provided. \p BD: base discriminator \p DF: duplication factor
|
|
/// \p CI: copy index
|
|
/// The return is None if the values cannot be encoded in 32 bits - for
|
|
/// example, values for BD or DF larger than 12 bits. Otherwise, the return
|
|
/// is the encoded value.
|
|
static Optional<unsigned> encodeDiscriminator(unsigned BD, unsigned DF, unsigned CI);
|
|
|
|
/// Raw decoder for values in an encoded discriminator D.
|
|
static void decodeDiscriminator(unsigned D, unsigned &BD, unsigned &DF,
|
|
unsigned &CI);
|
|
|
|
/// Returns the duplication factor for a given encoded discriminator \p D, or
|
|
/// 1 if no value or 0 is encoded.
|
|
static unsigned getDuplicationFactorFromDiscriminator(unsigned D) {
|
|
D = getNextComponentInDiscriminator(D);
|
|
unsigned Ret = getUnsignedFromPrefixEncoding(D);
|
|
if (Ret == 0)
|
|
return 1;
|
|
return Ret;
|
|
}
|
|
|
|
/// Returns the copy identifier for a given encoded discriminator \p D.
|
|
static unsigned getCopyIdentifierFromDiscriminator(unsigned D) {
|
|
return getUnsignedFromPrefixEncoding(getNextComponentInDiscriminator(
|
|
getNextComponentInDiscriminator(D)));
|
|
}
|
|
|
|
|
|
Metadata *getRawScope() const { return getOperand(0); }
|
|
Metadata *getRawInlinedAt() const {
|
|
if (getNumOperands() == 2)
|
|
return getOperand(1);
|
|
return nullptr;
|
|
}
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DILocationKind;
|
|
}
|
|
};
|
|
|
|
/// Subprogram description.
|
|
class DISubprogram : public DILocalScope {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
unsigned Line;
|
|
unsigned ScopeLine;
|
|
unsigned VirtualIndex;
|
|
|
|
/// In the MS ABI, the implicit 'this' parameter is adjusted in the prologue
|
|
/// of method overrides from secondary bases by this amount. It may be
|
|
/// negative.
|
|
int ThisAdjustment;
|
|
|
|
public:
|
|
/// Debug info subprogram flags.
|
|
enum DISPFlags : uint32_t {
|
|
#define HANDLE_DISP_FLAG(ID, NAME) SPFlag##NAME = ID,
|
|
#define DISP_FLAG_LARGEST_NEEDED
|
|
#include "llvm/IR/DebugInfoFlags.def"
|
|
SPFlagNonvirtual = SPFlagZero,
|
|
SPFlagVirtuality = SPFlagVirtual | SPFlagPureVirtual,
|
|
LLVM_MARK_AS_BITMASK_ENUM(SPFlagLargest)
|
|
};
|
|
|
|
static DISPFlags getFlag(StringRef Flag);
|
|
static StringRef getFlagString(DISPFlags Flag);
|
|
|
|
/// Split up a flags bitfield for easier printing.
|
|
///
|
|
/// Split \c Flags into \c SplitFlags, a vector of its components. Returns
|
|
/// any remaining (unrecognized) bits.
|
|
static DISPFlags splitFlags(DISPFlags Flags,
|
|
SmallVectorImpl<DISPFlags> &SplitFlags);
|
|
|
|
// Helper for converting old bitfields to new flags word.
|
|
static DISPFlags toSPFlags(bool IsLocalToUnit, bool IsDefinition,
|
|
bool IsOptimized,
|
|
unsigned Virtuality = SPFlagNonvirtual,
|
|
bool IsMainSubprogram = false) {
|
|
// We're assuming virtuality is the low-order field.
|
|
static_assert(
|
|
int(SPFlagVirtual) == int(dwarf::DW_VIRTUALITY_virtual) &&
|
|
int(SPFlagPureVirtual) == int(dwarf::DW_VIRTUALITY_pure_virtual),
|
|
"Virtuality constant mismatch");
|
|
return static_cast<DISPFlags>(
|
|
(Virtuality & SPFlagVirtuality) |
|
|
(IsLocalToUnit ? SPFlagLocalToUnit : SPFlagZero) |
|
|
(IsDefinition ? SPFlagDefinition : SPFlagZero) |
|
|
(IsOptimized ? SPFlagOptimized : SPFlagZero) |
|
|
(IsMainSubprogram ? SPFlagMainSubprogram : SPFlagZero));
|
|
}
|
|
|
|
private:
|
|
DIFlags Flags;
|
|
DISPFlags SPFlags;
|
|
|
|
DISubprogram(LLVMContext &C, StorageType Storage, unsigned Line,
|
|
unsigned ScopeLine, unsigned VirtualIndex, int ThisAdjustment,
|
|
DIFlags Flags, DISPFlags SPFlags, ArrayRef<Metadata *> Ops)
|
|
: DILocalScope(C, DISubprogramKind, Storage, dwarf::DW_TAG_subprogram,
|
|
Ops),
|
|
Line(Line), ScopeLine(ScopeLine), VirtualIndex(VirtualIndex),
|
|
ThisAdjustment(ThisAdjustment), Flags(Flags), SPFlags(SPFlags) {
|
|
static_assert(dwarf::DW_VIRTUALITY_max < 4, "Virtuality out of range");
|
|
}
|
|
~DISubprogram() = default;
|
|
|
|
static DISubprogram *
|
|
getImpl(LLVMContext &Context, DIScope *Scope, StringRef Name,
|
|
StringRef LinkageName, DIFile *File, unsigned Line,
|
|
DISubroutineType *Type, unsigned ScopeLine, DIType *ContainingType,
|
|
unsigned VirtualIndex, int ThisAdjustment, DIFlags Flags,
|
|
DISPFlags SPFlags, DICompileUnit *Unit,
|
|
DITemplateParameterArray TemplateParams, DISubprogram *Declaration,
|
|
DINodeArray RetainedNodes, DITypeArray ThrownTypes,
|
|
StorageType Storage, bool ShouldCreate = true) {
|
|
return getImpl(Context, Scope, getCanonicalMDString(Context, Name),
|
|
getCanonicalMDString(Context, LinkageName), File, Line, Type,
|
|
ScopeLine, ContainingType, VirtualIndex, ThisAdjustment,
|
|
Flags, SPFlags, Unit, TemplateParams.get(), Declaration,
|
|
RetainedNodes.get(), ThrownTypes.get(), Storage,
|
|
ShouldCreate);
|
|
}
|
|
static DISubprogram *getImpl(LLVMContext &Context, Metadata *Scope,
|
|
MDString *Name, MDString *LinkageName,
|
|
Metadata *File, unsigned Line, Metadata *Type,
|
|
unsigned ScopeLine, Metadata *ContainingType,
|
|
unsigned VirtualIndex, int ThisAdjustment,
|
|
DIFlags Flags, DISPFlags SPFlags, Metadata *Unit,
|
|
Metadata *TemplateParams, Metadata *Declaration,
|
|
Metadata *RetainedNodes, Metadata *ThrownTypes,
|
|
StorageType Storage, bool ShouldCreate = true);
|
|
|
|
TempDISubprogram cloneImpl() const {
|
|
return getTemporary(getContext(), getScope(), getName(), getLinkageName(),
|
|
getFile(), getLine(), getType(), getScopeLine(),
|
|
getContainingType(), getVirtualIndex(),
|
|
getThisAdjustment(), getFlags(), getSPFlags(),
|
|
getUnit(), getTemplateParams(), getDeclaration(),
|
|
getRetainedNodes(), getThrownTypes());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(
|
|
DISubprogram,
|
|
(DIScope * Scope, StringRef Name, StringRef LinkageName, DIFile *File,
|
|
unsigned Line, DISubroutineType *Type, unsigned ScopeLine,
|
|
DIType *ContainingType, unsigned VirtualIndex, int ThisAdjustment,
|
|
DIFlags Flags, DISPFlags SPFlags, DICompileUnit *Unit,
|
|
DITemplateParameterArray TemplateParams = nullptr,
|
|
DISubprogram *Declaration = nullptr, DINodeArray RetainedNodes = nullptr,
|
|
DITypeArray ThrownTypes = nullptr),
|
|
(Scope, Name, LinkageName, File, Line, Type, ScopeLine, ContainingType,
|
|
VirtualIndex, ThisAdjustment, Flags, SPFlags, Unit, TemplateParams,
|
|
Declaration, RetainedNodes, ThrownTypes))
|
|
|
|
DEFINE_MDNODE_GET(
|
|
DISubprogram,
|
|
(Metadata * Scope, MDString *Name, MDString *LinkageName, Metadata *File,
|
|
unsigned Line, Metadata *Type, unsigned ScopeLine,
|
|
Metadata *ContainingType, unsigned VirtualIndex, int ThisAdjustment,
|
|
DIFlags Flags, DISPFlags SPFlags, Metadata *Unit,
|
|
Metadata *TemplateParams = nullptr, Metadata *Declaration = nullptr,
|
|
Metadata *RetainedNodes = nullptr, Metadata *ThrownTypes = nullptr),
|
|
(Scope, Name, LinkageName, File, Line, Type, ScopeLine, ContainingType,
|
|
VirtualIndex, ThisAdjustment, Flags, SPFlags, Unit, TemplateParams,
|
|
Declaration, RetainedNodes, ThrownTypes))
|
|
|
|
TempDISubprogram clone() const { return cloneImpl(); }
|
|
|
|
/// Returns a new temporary DISubprogram with updated Flags
|
|
TempDISubprogram cloneWithFlags(DIFlags NewFlags) const {
|
|
auto NewSP = clone();
|
|
NewSP->Flags = NewFlags;
|
|
return NewSP;
|
|
}
|
|
|
|
public:
|
|
unsigned getLine() const { return Line; }
|
|
unsigned getVirtuality() const { return getSPFlags() & SPFlagVirtuality; }
|
|
unsigned getVirtualIndex() const { return VirtualIndex; }
|
|
int getThisAdjustment() const { return ThisAdjustment; }
|
|
unsigned getScopeLine() const { return ScopeLine; }
|
|
DIFlags getFlags() const { return Flags; }
|
|
DISPFlags getSPFlags() const { return SPFlags; }
|
|
bool isLocalToUnit() const { return getSPFlags() & SPFlagLocalToUnit; }
|
|
bool isDefinition() const { return getSPFlags() & SPFlagDefinition; }
|
|
bool isOptimized() const { return getSPFlags() & SPFlagOptimized; }
|
|
bool isMainSubprogram() const { return getSPFlags() & SPFlagMainSubprogram; }
|
|
|
|
bool isArtificial() const { return getFlags() & FlagArtificial; }
|
|
bool isPrivate() const {
|
|
return (getFlags() & FlagAccessibility) == FlagPrivate;
|
|
}
|
|
bool isProtected() const {
|
|
return (getFlags() & FlagAccessibility) == FlagProtected;
|
|
}
|
|
bool isPublic() const {
|
|
return (getFlags() & FlagAccessibility) == FlagPublic;
|
|
}
|
|
bool isExplicit() const { return getFlags() & FlagExplicit; }
|
|
bool isPrototyped() const { return getFlags() & FlagPrototyped; }
|
|
bool areAllCallsDescribed() const {
|
|
return getFlags() & FlagAllCallsDescribed;
|
|
}
|
|
bool isPure() const { return getSPFlags() & SPFlagPure; }
|
|
bool isElemental() const { return getSPFlags() & SPFlagElemental; }
|
|
bool isRecursive() const { return getSPFlags() & SPFlagRecursive; }
|
|
bool isObjCDirect() const { return getSPFlags() & SPFlagObjCDirect; }
|
|
|
|
/// Check if this is deleted member function.
|
|
///
|
|
/// Return true if this subprogram is a C++11 special
|
|
/// member function declared deleted.
|
|
bool isDeleted() const { return getSPFlags() & SPFlagDeleted; }
|
|
|
|
/// Check if this is reference-qualified.
|
|
///
|
|
/// Return true if this subprogram is a C++11 reference-qualified non-static
|
|
/// member function (void foo() &).
|
|
bool isLValueReference() const { return getFlags() & FlagLValueReference; }
|
|
|
|
/// Check if this is rvalue-reference-qualified.
|
|
///
|
|
/// Return true if this subprogram is a C++11 rvalue-reference-qualified
|
|
/// non-static member function (void foo() &&).
|
|
bool isRValueReference() const { return getFlags() & FlagRValueReference; }
|
|
|
|
/// Check if this is marked as noreturn.
|
|
///
|
|
/// Return true if this subprogram is C++11 noreturn or C11 _Noreturn
|
|
bool isNoReturn() const { return getFlags() & FlagNoReturn; }
|
|
|
|
// Check if this routine is a compiler-generated thunk.
|
|
//
|
|
// Returns true if this subprogram is a thunk generated by the compiler.
|
|
bool isThunk() const { return getFlags() & FlagThunk; }
|
|
|
|
DIScope *getScope() const { return cast_or_null<DIScope>(getRawScope()); }
|
|
|
|
StringRef getName() const { return getStringOperand(2); }
|
|
StringRef getLinkageName() const { return getStringOperand(3); }
|
|
|
|
DISubroutineType *getType() const {
|
|
return cast_or_null<DISubroutineType>(getRawType());
|
|
}
|
|
DIType *getContainingType() const {
|
|
return cast_or_null<DIType>(getRawContainingType());
|
|
}
|
|
|
|
DICompileUnit *getUnit() const {
|
|
return cast_or_null<DICompileUnit>(getRawUnit());
|
|
}
|
|
void replaceUnit(DICompileUnit *CU) { replaceOperandWith(5, CU); }
|
|
DITemplateParameterArray getTemplateParams() const {
|
|
return cast_or_null<MDTuple>(getRawTemplateParams());
|
|
}
|
|
DISubprogram *getDeclaration() const {
|
|
return cast_or_null<DISubprogram>(getRawDeclaration());
|
|
}
|
|
DINodeArray getRetainedNodes() const {
|
|
return cast_or_null<MDTuple>(getRawRetainedNodes());
|
|
}
|
|
DITypeArray getThrownTypes() const {
|
|
return cast_or_null<MDTuple>(getRawThrownTypes());
|
|
}
|
|
|
|
Metadata *getRawScope() const { return getOperand(1); }
|
|
MDString *getRawName() const { return getOperandAs<MDString>(2); }
|
|
MDString *getRawLinkageName() const { return getOperandAs<MDString>(3); }
|
|
Metadata *getRawType() const { return getOperand(4); }
|
|
Metadata *getRawUnit() const { return getOperand(5); }
|
|
Metadata *getRawDeclaration() const { return getOperand(6); }
|
|
Metadata *getRawRetainedNodes() const { return getOperand(7); }
|
|
Metadata *getRawContainingType() const {
|
|
return getNumOperands() > 8 ? getOperandAs<Metadata>(8) : nullptr;
|
|
}
|
|
Metadata *getRawTemplateParams() const {
|
|
return getNumOperands() > 9 ? getOperandAs<Metadata>(9) : nullptr;
|
|
}
|
|
Metadata *getRawThrownTypes() const {
|
|
return getNumOperands() > 10 ? getOperandAs<Metadata>(10) : nullptr;
|
|
}
|
|
|
|
void replaceRawLinkageName(MDString *LinkageName) {
|
|
replaceOperandWith(3, LinkageName);
|
|
}
|
|
|
|
/// Check if this subprogram describes the given function.
|
|
///
|
|
/// FIXME: Should this be looking through bitcasts?
|
|
bool describes(const Function *F) const;
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DISubprogramKind;
|
|
}
|
|
};
|
|
|
|
class DILexicalBlockBase : public DILocalScope {
|
|
protected:
|
|
DILexicalBlockBase(LLVMContext &C, unsigned ID, StorageType Storage,
|
|
ArrayRef<Metadata *> Ops)
|
|
: DILocalScope(C, ID, Storage, dwarf::DW_TAG_lexical_block, Ops) {}
|
|
~DILexicalBlockBase() = default;
|
|
|
|
public:
|
|
DILocalScope *getScope() const { return cast<DILocalScope>(getRawScope()); }
|
|
|
|
Metadata *getRawScope() const { return getOperand(1); }
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DILexicalBlockKind ||
|
|
MD->getMetadataID() == DILexicalBlockFileKind;
|
|
}
|
|
};
|
|
|
|
class DILexicalBlock : public DILexicalBlockBase {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
unsigned Line;
|
|
uint16_t Column;
|
|
|
|
DILexicalBlock(LLVMContext &C, StorageType Storage, unsigned Line,
|
|
unsigned Column, ArrayRef<Metadata *> Ops)
|
|
: DILexicalBlockBase(C, DILexicalBlockKind, Storage, Ops), Line(Line),
|
|
Column(Column) {
|
|
assert(Column < (1u << 16) && "Expected 16-bit column");
|
|
}
|
|
~DILexicalBlock() = default;
|
|
|
|
static DILexicalBlock *getImpl(LLVMContext &Context, DILocalScope *Scope,
|
|
DIFile *File, unsigned Line, unsigned Column,
|
|
StorageType Storage,
|
|
bool ShouldCreate = true) {
|
|
return getImpl(Context, static_cast<Metadata *>(Scope),
|
|
static_cast<Metadata *>(File), Line, Column, Storage,
|
|
ShouldCreate);
|
|
}
|
|
|
|
static DILexicalBlock *getImpl(LLVMContext &Context, Metadata *Scope,
|
|
Metadata *File, unsigned Line, unsigned Column,
|
|
StorageType Storage, bool ShouldCreate = true);
|
|
|
|
TempDILexicalBlock cloneImpl() const {
|
|
return getTemporary(getContext(), getScope(), getFile(), getLine(),
|
|
getColumn());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DILexicalBlock, (DILocalScope * Scope, DIFile *File,
|
|
unsigned Line, unsigned Column),
|
|
(Scope, File, Line, Column))
|
|
DEFINE_MDNODE_GET(DILexicalBlock, (Metadata * Scope, Metadata *File,
|
|
unsigned Line, unsigned Column),
|
|
(Scope, File, Line, Column))
|
|
|
|
TempDILexicalBlock clone() const { return cloneImpl(); }
|
|
|
|
unsigned getLine() const { return Line; }
|
|
unsigned getColumn() const { return Column; }
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DILexicalBlockKind;
|
|
}
|
|
};
|
|
|
|
class DILexicalBlockFile : public DILexicalBlockBase {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
unsigned Discriminator;
|
|
|
|
DILexicalBlockFile(LLVMContext &C, StorageType Storage,
|
|
unsigned Discriminator, ArrayRef<Metadata *> Ops)
|
|
: DILexicalBlockBase(C, DILexicalBlockFileKind, Storage, Ops),
|
|
Discriminator(Discriminator) {}
|
|
~DILexicalBlockFile() = default;
|
|
|
|
static DILexicalBlockFile *getImpl(LLVMContext &Context, DILocalScope *Scope,
|
|
DIFile *File, unsigned Discriminator,
|
|
StorageType Storage,
|
|
bool ShouldCreate = true) {
|
|
return getImpl(Context, static_cast<Metadata *>(Scope),
|
|
static_cast<Metadata *>(File), Discriminator, Storage,
|
|
ShouldCreate);
|
|
}
|
|
|
|
static DILexicalBlockFile *getImpl(LLVMContext &Context, Metadata *Scope,
|
|
Metadata *File, unsigned Discriminator,
|
|
StorageType Storage,
|
|
bool ShouldCreate = true);
|
|
|
|
TempDILexicalBlockFile cloneImpl() const {
|
|
return getTemporary(getContext(), getScope(), getFile(),
|
|
getDiscriminator());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DILexicalBlockFile, (DILocalScope * Scope, DIFile *File,
|
|
unsigned Discriminator),
|
|
(Scope, File, Discriminator))
|
|
DEFINE_MDNODE_GET(DILexicalBlockFile,
|
|
(Metadata * Scope, Metadata *File, unsigned Discriminator),
|
|
(Scope, File, Discriminator))
|
|
|
|
TempDILexicalBlockFile clone() const { return cloneImpl(); }
|
|
|
|
// TODO: Remove these once they're gone from DILexicalBlockBase.
|
|
unsigned getLine() const = delete;
|
|
unsigned getColumn() const = delete;
|
|
|
|
unsigned getDiscriminator() const { return Discriminator; }
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DILexicalBlockFileKind;
|
|
}
|
|
};
|
|
|
|
unsigned DILocation::getDiscriminator() const {
|
|
if (auto *F = dyn_cast<DILexicalBlockFile>(getScope()))
|
|
return F->getDiscriminator();
|
|
return 0;
|
|
}
|
|
|
|
const DILocation *
|
|
DILocation::cloneWithDiscriminator(unsigned Discriminator) const {
|
|
DIScope *Scope = getScope();
|
|
// Skip all parent DILexicalBlockFile that already have a discriminator
|
|
// assigned. We do not want to have nested DILexicalBlockFiles that have
|
|
// mutliple discriminators because only the leaf DILexicalBlockFile's
|
|
// dominator will be used.
|
|
for (auto *LBF = dyn_cast<DILexicalBlockFile>(Scope);
|
|
LBF && LBF->getDiscriminator() != 0;
|
|
LBF = dyn_cast<DILexicalBlockFile>(Scope))
|
|
Scope = LBF->getScope();
|
|
DILexicalBlockFile *NewScope =
|
|
DILexicalBlockFile::get(getContext(), Scope, getFile(), Discriminator);
|
|
return DILocation::get(getContext(), getLine(), getColumn(), NewScope,
|
|
getInlinedAt());
|
|
}
|
|
|
|
unsigned DILocation::getBaseDiscriminator() const {
|
|
return getBaseDiscriminatorFromDiscriminator(getDiscriminator());
|
|
}
|
|
|
|
unsigned DILocation::getDuplicationFactor() const {
|
|
return getDuplicationFactorFromDiscriminator(getDiscriminator());
|
|
}
|
|
|
|
unsigned DILocation::getCopyIdentifier() const {
|
|
return getCopyIdentifierFromDiscriminator(getDiscriminator());
|
|
}
|
|
|
|
Optional<const DILocation *> DILocation::cloneWithBaseDiscriminator(unsigned D) const {
|
|
unsigned BD, DF, CI;
|
|
decodeDiscriminator(getDiscriminator(), BD, DF, CI);
|
|
if (D == BD)
|
|
return this;
|
|
if (Optional<unsigned> Encoded = encodeDiscriminator(D, DF, CI))
|
|
return cloneWithDiscriminator(*Encoded);
|
|
return None;
|
|
}
|
|
|
|
Optional<const DILocation *> DILocation::cloneByMultiplyingDuplicationFactor(unsigned DF) const {
|
|
DF *= getDuplicationFactor();
|
|
if (DF <= 1)
|
|
return this;
|
|
|
|
unsigned BD = getBaseDiscriminator();
|
|
unsigned CI = getCopyIdentifier();
|
|
if (Optional<unsigned> D = encodeDiscriminator(BD, DF, CI))
|
|
return cloneWithDiscriminator(*D);
|
|
return None;
|
|
}
|
|
|
|
class DINamespace : public DIScope {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
unsigned ExportSymbols : 1;
|
|
|
|
DINamespace(LLVMContext &Context, StorageType Storage, bool ExportSymbols,
|
|
ArrayRef<Metadata *> Ops)
|
|
: DIScope(Context, DINamespaceKind, Storage, dwarf::DW_TAG_namespace,
|
|
Ops),
|
|
ExportSymbols(ExportSymbols) {}
|
|
~DINamespace() = default;
|
|
|
|
static DINamespace *getImpl(LLVMContext &Context, DIScope *Scope,
|
|
StringRef Name, bool ExportSymbols,
|
|
StorageType Storage, bool ShouldCreate = true) {
|
|
return getImpl(Context, Scope, getCanonicalMDString(Context, Name),
|
|
ExportSymbols, Storage, ShouldCreate);
|
|
}
|
|
static DINamespace *getImpl(LLVMContext &Context, Metadata *Scope,
|
|
MDString *Name, bool ExportSymbols,
|
|
StorageType Storage, bool ShouldCreate = true);
|
|
|
|
TempDINamespace cloneImpl() const {
|
|
return getTemporary(getContext(), getScope(), getName(),
|
|
getExportSymbols());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DINamespace,
|
|
(DIScope *Scope, StringRef Name, bool ExportSymbols),
|
|
(Scope, Name, ExportSymbols))
|
|
DEFINE_MDNODE_GET(DINamespace,
|
|
(Metadata *Scope, MDString *Name, bool ExportSymbols),
|
|
(Scope, Name, ExportSymbols))
|
|
|
|
TempDINamespace clone() const { return cloneImpl(); }
|
|
|
|
bool getExportSymbols() const { return ExportSymbols; }
|
|
DIScope *getScope() const { return cast_or_null<DIScope>(getRawScope()); }
|
|
StringRef getName() const { return getStringOperand(2); }
|
|
|
|
Metadata *getRawScope() const { return getOperand(1); }
|
|
MDString *getRawName() const { return getOperandAs<MDString>(2); }
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DINamespaceKind;
|
|
}
|
|
};
|
|
|
|
/// Represents a module in the programming language, for example, a Clang
|
|
/// module, or a Fortran module.
|
|
class DIModule : public DIScope {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
unsigned LineNo;
|
|
bool IsDecl;
|
|
|
|
DIModule(LLVMContext &Context, StorageType Storage, unsigned LineNo,
|
|
bool IsDecl, ArrayRef<Metadata *> Ops)
|
|
: DIScope(Context, DIModuleKind, Storage, dwarf::DW_TAG_module, Ops),
|
|
LineNo(LineNo), IsDecl(IsDecl) {}
|
|
~DIModule() = default;
|
|
|
|
static DIModule *getImpl(LLVMContext &Context, DIFile *File, DIScope *Scope,
|
|
StringRef Name, StringRef ConfigurationMacros,
|
|
StringRef IncludePath, StringRef APINotesFile,
|
|
unsigned LineNo, bool IsDecl, StorageType Storage,
|
|
bool ShouldCreate = true) {
|
|
return getImpl(Context, File, Scope, getCanonicalMDString(Context, Name),
|
|
getCanonicalMDString(Context, ConfigurationMacros),
|
|
getCanonicalMDString(Context, IncludePath),
|
|
getCanonicalMDString(Context, APINotesFile), LineNo, IsDecl,
|
|
Storage, ShouldCreate);
|
|
}
|
|
static DIModule *getImpl(LLVMContext &Context, Metadata *File,
|
|
Metadata *Scope, MDString *Name,
|
|
MDString *ConfigurationMacros, MDString *IncludePath,
|
|
MDString *APINotesFile, unsigned LineNo, bool IsDecl,
|
|
StorageType Storage, bool ShouldCreate = true);
|
|
|
|
TempDIModule cloneImpl() const {
|
|
return getTemporary(getContext(), getFile(), getScope(), getName(),
|
|
getConfigurationMacros(), getIncludePath(),
|
|
getAPINotesFile(), getLineNo(), getIsDecl());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DIModule,
|
|
(DIFile * File, DIScope *Scope, StringRef Name,
|
|
StringRef ConfigurationMacros, StringRef IncludePath,
|
|
StringRef APINotesFile, unsigned LineNo,
|
|
bool IsDecl = false),
|
|
(File, Scope, Name, ConfigurationMacros, IncludePath,
|
|
APINotesFile, LineNo, IsDecl))
|
|
DEFINE_MDNODE_GET(DIModule,
|
|
(Metadata * File, Metadata *Scope, MDString *Name,
|
|
MDString *ConfigurationMacros, MDString *IncludePath,
|
|
MDString *APINotesFile, unsigned LineNo,
|
|
bool IsDecl = false),
|
|
(File, Scope, Name, ConfigurationMacros, IncludePath,
|
|
APINotesFile, LineNo, IsDecl))
|
|
|
|
TempDIModule clone() const { return cloneImpl(); }
|
|
|
|
DIScope *getScope() const { return cast_or_null<DIScope>(getRawScope()); }
|
|
StringRef getName() const { return getStringOperand(2); }
|
|
StringRef getConfigurationMacros() const { return getStringOperand(3); }
|
|
StringRef getIncludePath() const { return getStringOperand(4); }
|
|
StringRef getAPINotesFile() const { return getStringOperand(5); }
|
|
unsigned getLineNo() const { return LineNo; }
|
|
bool getIsDecl() const { return IsDecl; }
|
|
|
|
Metadata *getRawScope() const { return getOperand(1); }
|
|
MDString *getRawName() const { return getOperandAs<MDString>(2); }
|
|
MDString *getRawConfigurationMacros() const {
|
|
return getOperandAs<MDString>(3);
|
|
}
|
|
MDString *getRawIncludePath() const { return getOperandAs<MDString>(4); }
|
|
MDString *getRawAPINotesFile() const { return getOperandAs<MDString>(5); }
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DIModuleKind;
|
|
}
|
|
};
|
|
|
|
/// Base class for template parameters.
|
|
class DITemplateParameter : public DINode {
|
|
protected:
|
|
bool IsDefault;
|
|
|
|
DITemplateParameter(LLVMContext &Context, unsigned ID, StorageType Storage,
|
|
unsigned Tag, bool IsDefault, ArrayRef<Metadata *> Ops)
|
|
: DINode(Context, ID, Storage, Tag, Ops), IsDefault(IsDefault) {}
|
|
~DITemplateParameter() = default;
|
|
|
|
public:
|
|
StringRef getName() const { return getStringOperand(0); }
|
|
DIType *getType() const { return cast_or_null<DIType>(getRawType()); }
|
|
|
|
MDString *getRawName() const { return getOperandAs<MDString>(0); }
|
|
Metadata *getRawType() const { return getOperand(1); }
|
|
bool isDefault() const { return IsDefault; }
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DITemplateTypeParameterKind ||
|
|
MD->getMetadataID() == DITemplateValueParameterKind;
|
|
}
|
|
};
|
|
|
|
class DITemplateTypeParameter : public DITemplateParameter {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
DITemplateTypeParameter(LLVMContext &Context, StorageType Storage,
|
|
bool IsDefault, ArrayRef<Metadata *> Ops)
|
|
: DITemplateParameter(Context, DITemplateTypeParameterKind, Storage,
|
|
dwarf::DW_TAG_template_type_parameter, IsDefault,
|
|
Ops) {}
|
|
~DITemplateTypeParameter() = default;
|
|
|
|
static DITemplateTypeParameter *getImpl(LLVMContext &Context, StringRef Name,
|
|
DIType *Type, bool IsDefault,
|
|
StorageType Storage,
|
|
bool ShouldCreate = true) {
|
|
return getImpl(Context, getCanonicalMDString(Context, Name), Type,
|
|
IsDefault, Storage, ShouldCreate);
|
|
}
|
|
static DITemplateTypeParameter *getImpl(LLVMContext &Context, MDString *Name,
|
|
Metadata *Type, bool IsDefault,
|
|
StorageType Storage,
|
|
bool ShouldCreate = true);
|
|
|
|
TempDITemplateTypeParameter cloneImpl() const {
|
|
return getTemporary(getContext(), getName(), getType(), isDefault());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DITemplateTypeParameter,
|
|
(StringRef Name, DIType *Type, bool IsDefault),
|
|
(Name, Type, IsDefault))
|
|
DEFINE_MDNODE_GET(DITemplateTypeParameter,
|
|
(MDString *Name, Metadata *Type, bool IsDefault),
|
|
(Name, Type, IsDefault))
|
|
|
|
TempDITemplateTypeParameter clone() const { return cloneImpl(); }
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DITemplateTypeParameterKind;
|
|
}
|
|
};
|
|
|
|
class DITemplateValueParameter : public DITemplateParameter {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
DITemplateValueParameter(LLVMContext &Context, StorageType Storage,
|
|
unsigned Tag, bool IsDefault,
|
|
ArrayRef<Metadata *> Ops)
|
|
: DITemplateParameter(Context, DITemplateValueParameterKind, Storage, Tag,
|
|
IsDefault, Ops) {}
|
|
~DITemplateValueParameter() = default;
|
|
|
|
static DITemplateValueParameter *getImpl(LLVMContext &Context, unsigned Tag,
|
|
StringRef Name, DIType *Type,
|
|
bool IsDefault, Metadata *Value,
|
|
StorageType Storage,
|
|
bool ShouldCreate = true) {
|
|
return getImpl(Context, Tag, getCanonicalMDString(Context, Name), Type,
|
|
IsDefault, Value, Storage, ShouldCreate);
|
|
}
|
|
static DITemplateValueParameter *getImpl(LLVMContext &Context, unsigned Tag,
|
|
MDString *Name, Metadata *Type,
|
|
bool IsDefault, Metadata *Value,
|
|
StorageType Storage,
|
|
bool ShouldCreate = true);
|
|
|
|
TempDITemplateValueParameter cloneImpl() const {
|
|
return getTemporary(getContext(), getTag(), getName(), getType(),
|
|
isDefault(), getValue());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DITemplateValueParameter,
|
|
(unsigned Tag, StringRef Name, DIType *Type, bool IsDefault,
|
|
Metadata *Value),
|
|
(Tag, Name, Type, IsDefault, Value))
|
|
DEFINE_MDNODE_GET(DITemplateValueParameter,
|
|
(unsigned Tag, MDString *Name, Metadata *Type,
|
|
bool IsDefault, Metadata *Value),
|
|
(Tag, Name, Type, IsDefault, Value))
|
|
|
|
TempDITemplateValueParameter clone() const { return cloneImpl(); }
|
|
|
|
Metadata *getValue() const { return getOperand(2); }
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DITemplateValueParameterKind;
|
|
}
|
|
};
|
|
|
|
/// Base class for variables.
|
|
class DIVariable : public DINode {
|
|
unsigned Line;
|
|
uint32_t AlignInBits;
|
|
|
|
protected:
|
|
DIVariable(LLVMContext &C, unsigned ID, StorageType Storage, unsigned Line,
|
|
ArrayRef<Metadata *> Ops, uint32_t AlignInBits = 0)
|
|
: DINode(C, ID, Storage, dwarf::DW_TAG_variable, Ops), Line(Line),
|
|
AlignInBits(AlignInBits) {}
|
|
~DIVariable() = default;
|
|
|
|
public:
|
|
unsigned getLine() const { return Line; }
|
|
DIScope *getScope() const { return cast_or_null<DIScope>(getRawScope()); }
|
|
StringRef getName() const { return getStringOperand(1); }
|
|
DIFile *getFile() const { return cast_or_null<DIFile>(getRawFile()); }
|
|
DIType *getType() const { return cast_or_null<DIType>(getRawType()); }
|
|
uint32_t getAlignInBits() const { return AlignInBits; }
|
|
uint32_t getAlignInBytes() const { return getAlignInBits() / CHAR_BIT; }
|
|
/// Determines the size of the variable's type.
|
|
Optional<uint64_t> getSizeInBits() const;
|
|
|
|
/// Return the signedness of this variable's type, or None if this type is
|
|
/// neither signed nor unsigned.
|
|
Optional<DIBasicType::Signedness> getSignedness() const {
|
|
if (auto *BT = dyn_cast<DIBasicType>(getType()))
|
|
return BT->getSignedness();
|
|
return None;
|
|
}
|
|
|
|
StringRef getFilename() const {
|
|
if (auto *F = getFile())
|
|
return F->getFilename();
|
|
return "";
|
|
}
|
|
|
|
StringRef getDirectory() const {
|
|
if (auto *F = getFile())
|
|
return F->getDirectory();
|
|
return "";
|
|
}
|
|
|
|
Optional<StringRef> getSource() const {
|
|
if (auto *F = getFile())
|
|
return F->getSource();
|
|
return None;
|
|
}
|
|
|
|
Metadata *getRawScope() const { return getOperand(0); }
|
|
MDString *getRawName() const { return getOperandAs<MDString>(1); }
|
|
Metadata *getRawFile() const { return getOperand(2); }
|
|
Metadata *getRawType() const { return getOperand(3); }
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DILocalVariableKind ||
|
|
MD->getMetadataID() == DIGlobalVariableKind;
|
|
}
|
|
};
|
|
|
|
/// DWARF expression.
|
|
///
|
|
/// This is (almost) a DWARF expression that modifies the location of a
|
|
/// variable, or the location of a single piece of a variable, or (when using
|
|
/// DW_OP_stack_value) is the constant variable value.
|
|
///
|
|
/// TODO: Co-allocate the expression elements.
|
|
/// TODO: Separate from MDNode, or otherwise drop Distinct and Temporary
|
|
/// storage types.
|
|
class DIExpression : public MDNode {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
std::vector<uint64_t> Elements;
|
|
|
|
DIExpression(LLVMContext &C, StorageType Storage, ArrayRef<uint64_t> Elements)
|
|
: MDNode(C, DIExpressionKind, Storage, None),
|
|
Elements(Elements.begin(), Elements.end()) {}
|
|
~DIExpression() = default;
|
|
|
|
static DIExpression *getImpl(LLVMContext &Context,
|
|
ArrayRef<uint64_t> Elements, StorageType Storage,
|
|
bool ShouldCreate = true);
|
|
|
|
TempDIExpression cloneImpl() const {
|
|
return getTemporary(getContext(), getElements());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DIExpression, (ArrayRef<uint64_t> Elements), (Elements))
|
|
|
|
TempDIExpression clone() const { return cloneImpl(); }
|
|
|
|
ArrayRef<uint64_t> getElements() const { return Elements; }
|
|
|
|
unsigned getNumElements() const { return Elements.size(); }
|
|
|
|
uint64_t getElement(unsigned I) const {
|
|
assert(I < Elements.size() && "Index out of range");
|
|
return Elements[I];
|
|
}
|
|
|
|
/// Determine whether this represents a standalone constant value.
|
|
bool isConstant() const;
|
|
|
|
/// Determine whether this represents a standalone signed constant value.
|
|
bool isSignedConstant() const;
|
|
|
|
using element_iterator = ArrayRef<uint64_t>::iterator;
|
|
|
|
element_iterator elements_begin() const { return getElements().begin(); }
|
|
element_iterator elements_end() const { return getElements().end(); }
|
|
|
|
/// A lightweight wrapper around an expression operand.
|
|
///
|
|
/// TODO: Store arguments directly and change \a DIExpression to store a
|
|
/// range of these.
|
|
class ExprOperand {
|
|
const uint64_t *Op = nullptr;
|
|
|
|
public:
|
|
ExprOperand() = default;
|
|
explicit ExprOperand(const uint64_t *Op) : Op(Op) {}
|
|
|
|
const uint64_t *get() const { return Op; }
|
|
|
|
/// Get the operand code.
|
|
uint64_t getOp() const { return *Op; }
|
|
|
|
/// Get an argument to the operand.
|
|
///
|
|
/// Never returns the operand itself.
|
|
uint64_t getArg(unsigned I) const { return Op[I + 1]; }
|
|
|
|
unsigned getNumArgs() const { return getSize() - 1; }
|
|
|
|
/// Return the size of the operand.
|
|
///
|
|
/// Return the number of elements in the operand (1 + args).
|
|
unsigned getSize() const;
|
|
|
|
/// Append the elements of this operand to \p V.
|
|
void appendToVector(SmallVectorImpl<uint64_t> &V) const {
|
|
V.append(get(), get() + getSize());
|
|
}
|
|
};
|
|
|
|
/// An iterator for expression operands.
|
|
class expr_op_iterator
|
|
: public std::iterator<std::input_iterator_tag, ExprOperand> {
|
|
ExprOperand Op;
|
|
|
|
public:
|
|
expr_op_iterator() = default;
|
|
explicit expr_op_iterator(element_iterator I) : Op(I) {}
|
|
|
|
element_iterator getBase() const { return Op.get(); }
|
|
const ExprOperand &operator*() const { return Op; }
|
|
const ExprOperand *operator->() const { return &Op; }
|
|
|
|
expr_op_iterator &operator++() {
|
|
increment();
|
|
return *this;
|
|
}
|
|
expr_op_iterator operator++(int) {
|
|
expr_op_iterator T(*this);
|
|
increment();
|
|
return T;
|
|
}
|
|
|
|
/// Get the next iterator.
|
|
///
|
|
/// \a std::next() doesn't work because this is technically an
|
|
/// input_iterator, but it's a perfectly valid operation. This is an
|
|
/// accessor to provide the same functionality.
|
|
expr_op_iterator getNext() const { return ++expr_op_iterator(*this); }
|
|
|
|
bool operator==(const expr_op_iterator &X) const {
|
|
return getBase() == X.getBase();
|
|
}
|
|
bool operator!=(const expr_op_iterator &X) const {
|
|
return getBase() != X.getBase();
|
|
}
|
|
|
|
private:
|
|
void increment() { Op = ExprOperand(getBase() + Op.getSize()); }
|
|
};
|
|
|
|
/// Visit the elements via ExprOperand wrappers.
|
|
///
|
|
/// These range iterators visit elements through \a ExprOperand wrappers.
|
|
/// This is not guaranteed to be a valid range unless \a isValid() gives \c
|
|
/// true.
|
|
///
|
|
/// \pre \a isValid() gives \c true.
|
|
/// @{
|
|
expr_op_iterator expr_op_begin() const {
|
|
return expr_op_iterator(elements_begin());
|
|
}
|
|
expr_op_iterator expr_op_end() const {
|
|
return expr_op_iterator(elements_end());
|
|
}
|
|
iterator_range<expr_op_iterator> expr_ops() const {
|
|
return {expr_op_begin(), expr_op_end()};
|
|
}
|
|
/// @}
|
|
|
|
bool isValid() const;
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DIExpressionKind;
|
|
}
|
|
|
|
/// Return whether the first element a DW_OP_deref.
|
|
bool startsWithDeref() const {
|
|
return getNumElements() > 0 && getElement(0) == dwarf::DW_OP_deref;
|
|
}
|
|
|
|
/// Holds the characteristics of one fragment of a larger variable.
|
|
struct FragmentInfo {
|
|
uint64_t SizeInBits;
|
|
uint64_t OffsetInBits;
|
|
};
|
|
|
|
/// Retrieve the details of this fragment expression.
|
|
static Optional<FragmentInfo> getFragmentInfo(expr_op_iterator Start,
|
|
expr_op_iterator End);
|
|
|
|
/// Retrieve the details of this fragment expression.
|
|
Optional<FragmentInfo> getFragmentInfo() const {
|
|
return getFragmentInfo(expr_op_begin(), expr_op_end());
|
|
}
|
|
|
|
/// Return whether this is a piece of an aggregate variable.
|
|
bool isFragment() const { return getFragmentInfo().hasValue(); }
|
|
|
|
/// Return whether this is an implicit location description.
|
|
bool isImplicit() const;
|
|
|
|
/// Return whether the location is computed on the expression stack, meaning
|
|
/// it cannot be a simple register location.
|
|
bool isComplex() const;
|
|
|
|
/// Append \p Ops with operations to apply the \p Offset.
|
|
static void appendOffset(SmallVectorImpl<uint64_t> &Ops, int64_t Offset);
|
|
|
|
/// If this is a constant offset, extract it. If there is no expression,
|
|
/// return true with an offset of zero.
|
|
bool extractIfOffset(int64_t &Offset) const;
|
|
|
|
/// Checks if the last 4 elements of the expression are DW_OP_constu <DWARF
|
|
/// Address Space> DW_OP_swap DW_OP_xderef and extracts the <DWARF Address
|
|
/// Space>.
|
|
static const DIExpression *extractAddressClass(const DIExpression *Expr,
|
|
unsigned &AddrClass);
|
|
|
|
/// Used for DIExpression::prepend.
|
|
enum PrependOps : uint8_t {
|
|
ApplyOffset = 0,
|
|
DerefBefore = 1 << 0,
|
|
DerefAfter = 1 << 1,
|
|
StackValue = 1 << 2,
|
|
EntryValue = 1 << 3
|
|
};
|
|
|
|
/// Prepend \p DIExpr with a deref and offset operation and optionally turn it
|
|
/// into a stack value or/and an entry value.
|
|
static DIExpression *prepend(const DIExpression *Expr, uint8_t Flags,
|
|
int64_t Offset = 0);
|
|
|
|
/// Prepend \p DIExpr with the given opcodes and optionally turn it into a
|
|
/// stack value.
|
|
static DIExpression *prependOpcodes(const DIExpression *Expr,
|
|
SmallVectorImpl<uint64_t> &Ops,
|
|
bool StackValue = false,
|
|
bool EntryValue = false);
|
|
|
|
/// Append the opcodes \p Ops to \p DIExpr. Unlike \ref appendToStack, the
|
|
/// returned expression is a stack value only if \p DIExpr is a stack value.
|
|
/// If \p DIExpr describes a fragment, the returned expression will describe
|
|
/// the same fragment.
|
|
static DIExpression *append(const DIExpression *Expr, ArrayRef<uint64_t> Ops);
|
|
|
|
/// Convert \p DIExpr into a stack value if it isn't one already by appending
|
|
/// DW_OP_deref if needed, and appending \p Ops to the resulting expression.
|
|
/// If \p DIExpr describes a fragment, the returned expression will describe
|
|
/// the same fragment.
|
|
static DIExpression *appendToStack(const DIExpression *Expr,
|
|
ArrayRef<uint64_t> Ops);
|
|
|
|
/// Create a DIExpression to describe one part of an aggregate variable that
|
|
/// is fragmented across multiple Values. The DW_OP_LLVM_fragment operation
|
|
/// will be appended to the elements of \c Expr. If \c Expr already contains
|
|
/// a \c DW_OP_LLVM_fragment \c OffsetInBits is interpreted as an offset
|
|
/// into the existing fragment.
|
|
///
|
|
/// \param OffsetInBits Offset of the piece in bits.
|
|
/// \param SizeInBits Size of the piece in bits.
|
|
/// \return Creating a fragment expression may fail if \c Expr
|
|
/// contains arithmetic operations that would be truncated.
|
|
static Optional<DIExpression *>
|
|
createFragmentExpression(const DIExpression *Expr, unsigned OffsetInBits,
|
|
unsigned SizeInBits);
|
|
|
|
/// Determine the relative position of the fragments passed in.
|
|
/// Returns -1 if this is entirely before Other, 0 if this and Other overlap,
|
|
/// 1 if this is entirely after Other.
|
|
static int fragmentCmp(const FragmentInfo &A, const FragmentInfo &B) {
|
|
uint64_t l1 = A.OffsetInBits;
|
|
uint64_t l2 = B.OffsetInBits;
|
|
uint64_t r1 = l1 + A.SizeInBits;
|
|
uint64_t r2 = l2 + B.SizeInBits;
|
|
if (r1 <= l2)
|
|
return -1;
|
|
else if (r2 <= l1)
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
using ExtOps = std::array<uint64_t, 6>;
|
|
|
|
/// Returns the ops for a zero- or sign-extension in a DIExpression.
|
|
static ExtOps getExtOps(unsigned FromSize, unsigned ToSize, bool Signed);
|
|
|
|
/// Append a zero- or sign-extension to \p Expr. Converts the expression to a
|
|
/// stack value if it isn't one already.
|
|
static DIExpression *appendExt(const DIExpression *Expr, unsigned FromSize,
|
|
unsigned ToSize, bool Signed);
|
|
|
|
/// Check if fragments overlap between a pair of FragmentInfos.
|
|
static bool fragmentsOverlap(const FragmentInfo &A, const FragmentInfo &B) {
|
|
return fragmentCmp(A, B) == 0;
|
|
}
|
|
|
|
/// Determine the relative position of the fragments described by this
|
|
/// DIExpression and \p Other. Calls static fragmentCmp implementation.
|
|
int fragmentCmp(const DIExpression *Other) const {
|
|
auto Fragment1 = *getFragmentInfo();
|
|
auto Fragment2 = *Other->getFragmentInfo();
|
|
return fragmentCmp(Fragment1, Fragment2);
|
|
}
|
|
|
|
/// Check if fragments overlap between this DIExpression and \p Other.
|
|
bool fragmentsOverlap(const DIExpression *Other) const {
|
|
if (!isFragment() || !Other->isFragment())
|
|
return true;
|
|
return fragmentCmp(Other) == 0;
|
|
}
|
|
|
|
/// Check if the expression consists of exactly one entry value operand.
|
|
/// (This is the only configuration of entry values that is supported.)
|
|
bool isEntryValue() const {
|
|
return getNumElements() > 0 &&
|
|
getElement(0) == dwarf::DW_OP_LLVM_entry_value;
|
|
}
|
|
};
|
|
|
|
inline bool operator==(const DIExpression::FragmentInfo &A,
|
|
const DIExpression::FragmentInfo &B) {
|
|
return std::tie(A.SizeInBits, A.OffsetInBits) ==
|
|
std::tie(B.SizeInBits, B.OffsetInBits);
|
|
}
|
|
|
|
inline bool operator<(const DIExpression::FragmentInfo &A,
|
|
const DIExpression::FragmentInfo &B) {
|
|
return std::tie(A.SizeInBits, A.OffsetInBits) <
|
|
std::tie(B.SizeInBits, B.OffsetInBits);
|
|
}
|
|
|
|
template <> struct DenseMapInfo<DIExpression::FragmentInfo> {
|
|
using FragInfo = DIExpression::FragmentInfo;
|
|
static const uint64_t MaxVal = std::numeric_limits<uint64_t>::max();
|
|
|
|
static inline FragInfo getEmptyKey() { return {MaxVal, MaxVal}; }
|
|
|
|
static inline FragInfo getTombstoneKey() { return {MaxVal - 1, MaxVal - 1}; }
|
|
|
|
static unsigned getHashValue(const FragInfo &Frag) {
|
|
return (Frag.SizeInBits & 0xffff) << 16 | (Frag.OffsetInBits & 0xffff);
|
|
}
|
|
|
|
static bool isEqual(const FragInfo &A, const FragInfo &B) { return A == B; }
|
|
};
|
|
|
|
/// Global variables.
|
|
///
|
|
/// TODO: Remove DisplayName. It's always equal to Name.
|
|
class DIGlobalVariable : public DIVariable {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
bool IsLocalToUnit;
|
|
bool IsDefinition;
|
|
|
|
DIGlobalVariable(LLVMContext &C, StorageType Storage, unsigned Line,
|
|
bool IsLocalToUnit, bool IsDefinition, uint32_t AlignInBits,
|
|
ArrayRef<Metadata *> Ops)
|
|
: DIVariable(C, DIGlobalVariableKind, Storage, Line, Ops, AlignInBits),
|
|
IsLocalToUnit(IsLocalToUnit), IsDefinition(IsDefinition) {}
|
|
~DIGlobalVariable() = default;
|
|
|
|
static DIGlobalVariable *
|
|
getImpl(LLVMContext &Context, DIScope *Scope, StringRef Name,
|
|
StringRef LinkageName, DIFile *File, unsigned Line, DIType *Type,
|
|
bool IsLocalToUnit, bool IsDefinition,
|
|
DIDerivedType *StaticDataMemberDeclaration, MDTuple *TemplateParams,
|
|
uint32_t AlignInBits, StorageType Storage, bool ShouldCreate = true) {
|
|
return getImpl(Context, Scope, getCanonicalMDString(Context, Name),
|
|
getCanonicalMDString(Context, LinkageName), File, Line, Type,
|
|
IsLocalToUnit, IsDefinition, StaticDataMemberDeclaration,
|
|
cast_or_null<Metadata>(TemplateParams), AlignInBits, Storage,
|
|
ShouldCreate);
|
|
}
|
|
static DIGlobalVariable *
|
|
getImpl(LLVMContext &Context, Metadata *Scope, MDString *Name,
|
|
MDString *LinkageName, Metadata *File, unsigned Line, Metadata *Type,
|
|
bool IsLocalToUnit, bool IsDefinition,
|
|
Metadata *StaticDataMemberDeclaration, Metadata *TemplateParams,
|
|
uint32_t AlignInBits, StorageType Storage, bool ShouldCreate = true);
|
|
|
|
TempDIGlobalVariable cloneImpl() const {
|
|
return getTemporary(getContext(), getScope(), getName(), getLinkageName(),
|
|
getFile(), getLine(), getType(), isLocalToUnit(),
|
|
isDefinition(), getStaticDataMemberDeclaration(),
|
|
getTemplateParams(), getAlignInBits());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DIGlobalVariable,
|
|
(DIScope * Scope, StringRef Name, StringRef LinkageName,
|
|
DIFile *File, unsigned Line, DIType *Type,
|
|
bool IsLocalToUnit, bool IsDefinition,
|
|
DIDerivedType *StaticDataMemberDeclaration,
|
|
MDTuple *TemplateParams, uint32_t AlignInBits),
|
|
(Scope, Name, LinkageName, File, Line, Type, IsLocalToUnit,
|
|
IsDefinition, StaticDataMemberDeclaration, TemplateParams,
|
|
AlignInBits))
|
|
DEFINE_MDNODE_GET(DIGlobalVariable,
|
|
(Metadata * Scope, MDString *Name, MDString *LinkageName,
|
|
Metadata *File, unsigned Line, Metadata *Type,
|
|
bool IsLocalToUnit, bool IsDefinition,
|
|
Metadata *StaticDataMemberDeclaration,
|
|
Metadata *TemplateParams, uint32_t AlignInBits),
|
|
(Scope, Name, LinkageName, File, Line, Type, IsLocalToUnit,
|
|
IsDefinition, StaticDataMemberDeclaration, TemplateParams,
|
|
AlignInBits))
|
|
|
|
TempDIGlobalVariable clone() const { return cloneImpl(); }
|
|
|
|
bool isLocalToUnit() const { return IsLocalToUnit; }
|
|
bool isDefinition() const { return IsDefinition; }
|
|
StringRef getDisplayName() const { return getStringOperand(4); }
|
|
StringRef getLinkageName() const { return getStringOperand(5); }
|
|
DIDerivedType *getStaticDataMemberDeclaration() const {
|
|
return cast_or_null<DIDerivedType>(getRawStaticDataMemberDeclaration());
|
|
}
|
|
|
|
MDString *getRawLinkageName() const { return getOperandAs<MDString>(5); }
|
|
Metadata *getRawStaticDataMemberDeclaration() const { return getOperand(6); }
|
|
Metadata *getRawTemplateParams() const { return getOperand(7); }
|
|
MDTuple *getTemplateParams() const { return getOperandAs<MDTuple>(7); }
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DIGlobalVariableKind;
|
|
}
|
|
};
|
|
|
|
class DICommonBlock : public DIScope {
|
|
unsigned LineNo;
|
|
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
DICommonBlock(LLVMContext &Context, StorageType Storage, unsigned LineNo,
|
|
ArrayRef<Metadata *> Ops)
|
|
: DIScope(Context, DICommonBlockKind, Storage, dwarf::DW_TAG_common_block,
|
|
Ops), LineNo(LineNo) {}
|
|
|
|
static DICommonBlock *getImpl(LLVMContext &Context, DIScope *Scope,
|
|
DIGlobalVariable *Decl, StringRef Name,
|
|
DIFile *File, unsigned LineNo,
|
|
StorageType Storage,
|
|
bool ShouldCreate = true) {
|
|
return getImpl(Context, Scope, Decl, getCanonicalMDString(Context, Name),
|
|
File, LineNo, Storage, ShouldCreate);
|
|
}
|
|
static DICommonBlock *getImpl(LLVMContext &Context, Metadata *Scope,
|
|
Metadata *Decl, MDString *Name, Metadata *File,
|
|
unsigned LineNo,
|
|
StorageType Storage, bool ShouldCreate = true);
|
|
|
|
TempDICommonBlock cloneImpl() const {
|
|
return getTemporary(getContext(), getScope(), getDecl(), getName(),
|
|
getFile(), getLineNo());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DICommonBlock,
|
|
(DIScope *Scope, DIGlobalVariable *Decl, StringRef Name,
|
|
DIFile *File, unsigned LineNo),
|
|
(Scope, Decl, Name, File, LineNo))
|
|
DEFINE_MDNODE_GET(DICommonBlock,
|
|
(Metadata *Scope, Metadata *Decl, MDString *Name,
|
|
Metadata *File, unsigned LineNo),
|
|
(Scope, Decl, Name, File, LineNo))
|
|
|
|
TempDICommonBlock clone() const { return cloneImpl(); }
|
|
|
|
DIScope *getScope() const { return cast_or_null<DIScope>(getRawScope()); }
|
|
DIGlobalVariable *getDecl() const {
|
|
return cast_or_null<DIGlobalVariable>(getRawDecl());
|
|
}
|
|
StringRef getName() const { return getStringOperand(2); }
|
|
DIFile *getFile() const { return cast_or_null<DIFile>(getRawFile()); }
|
|
unsigned getLineNo() const { return LineNo; }
|
|
|
|
Metadata *getRawScope() const { return getOperand(0); }
|
|
Metadata *getRawDecl() const { return getOperand(1); }
|
|
MDString *getRawName() const { return getOperandAs<MDString>(2); }
|
|
Metadata *getRawFile() const { return getOperand(3); }
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DICommonBlockKind;
|
|
}
|
|
};
|
|
|
|
/// Local variable.
|
|
///
|
|
/// TODO: Split up flags.
|
|
class DILocalVariable : public DIVariable {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
unsigned Arg : 16;
|
|
DIFlags Flags;
|
|
|
|
DILocalVariable(LLVMContext &C, StorageType Storage, unsigned Line,
|
|
unsigned Arg, DIFlags Flags, uint32_t AlignInBits,
|
|
ArrayRef<Metadata *> Ops)
|
|
: DIVariable(C, DILocalVariableKind, Storage, Line, Ops, AlignInBits),
|
|
Arg(Arg), Flags(Flags) {
|
|
assert(Arg < (1 << 16) && "DILocalVariable: Arg out of range");
|
|
}
|
|
~DILocalVariable() = default;
|
|
|
|
static DILocalVariable *getImpl(LLVMContext &Context, DIScope *Scope,
|
|
StringRef Name, DIFile *File, unsigned Line,
|
|
DIType *Type, unsigned Arg, DIFlags Flags,
|
|
uint32_t AlignInBits, StorageType Storage,
|
|
bool ShouldCreate = true) {
|
|
return getImpl(Context, Scope, getCanonicalMDString(Context, Name), File,
|
|
Line, Type, Arg, Flags, AlignInBits, Storage, ShouldCreate);
|
|
}
|
|
static DILocalVariable *getImpl(LLVMContext &Context, Metadata *Scope,
|
|
MDString *Name, Metadata *File, unsigned Line,
|
|
Metadata *Type, unsigned Arg, DIFlags Flags,
|
|
uint32_t AlignInBits, StorageType Storage,
|
|
bool ShouldCreate = true);
|
|
|
|
TempDILocalVariable cloneImpl() const {
|
|
return getTemporary(getContext(), getScope(), getName(), getFile(),
|
|
getLine(), getType(), getArg(), getFlags(),
|
|
getAlignInBits());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DILocalVariable,
|
|
(DILocalScope * Scope, StringRef Name, DIFile *File,
|
|
unsigned Line, DIType *Type, unsigned Arg, DIFlags Flags,
|
|
uint32_t AlignInBits),
|
|
(Scope, Name, File, Line, Type, Arg, Flags, AlignInBits))
|
|
DEFINE_MDNODE_GET(DILocalVariable,
|
|
(Metadata * Scope, MDString *Name, Metadata *File,
|
|
unsigned Line, Metadata *Type, unsigned Arg,
|
|
DIFlags Flags, uint32_t AlignInBits),
|
|
(Scope, Name, File, Line, Type, Arg, Flags, AlignInBits))
|
|
|
|
TempDILocalVariable clone() const { return cloneImpl(); }
|
|
|
|
/// Get the local scope for this variable.
|
|
///
|
|
/// Variables must be defined in a local scope.
|
|
DILocalScope *getScope() const {
|
|
return cast<DILocalScope>(DIVariable::getScope());
|
|
}
|
|
|
|
bool isParameter() const { return Arg; }
|
|
unsigned getArg() const { return Arg; }
|
|
DIFlags getFlags() const { return Flags; }
|
|
|
|
bool isArtificial() const { return getFlags() & FlagArtificial; }
|
|
bool isObjectPointer() const { return getFlags() & FlagObjectPointer; }
|
|
|
|
/// Check that a location is valid for this variable.
|
|
///
|
|
/// Check that \c DL exists, is in the same subprogram, and has the same
|
|
/// inlined-at location as \c this. (Otherwise, it's not a valid attachment
|
|
/// to a \a DbgInfoIntrinsic.)
|
|
bool isValidLocationForIntrinsic(const DILocation *DL) const {
|
|
return DL && getScope()->getSubprogram() == DL->getScope()->getSubprogram();
|
|
}
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DILocalVariableKind;
|
|
}
|
|
};
|
|
|
|
/// Label.
|
|
///
|
|
class DILabel : public DINode {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
unsigned Line;
|
|
|
|
DILabel(LLVMContext &C, StorageType Storage, unsigned Line,
|
|
ArrayRef<Metadata *> Ops)
|
|
: DINode(C, DILabelKind, Storage, dwarf::DW_TAG_label, Ops), Line(Line) {}
|
|
~DILabel() = default;
|
|
|
|
static DILabel *getImpl(LLVMContext &Context, DIScope *Scope,
|
|
StringRef Name, DIFile *File, unsigned Line,
|
|
StorageType Storage,
|
|
bool ShouldCreate = true) {
|
|
return getImpl(Context, Scope, getCanonicalMDString(Context, Name), File,
|
|
Line, Storage, ShouldCreate);
|
|
}
|
|
static DILabel *getImpl(LLVMContext &Context, Metadata *Scope,
|
|
MDString *Name, Metadata *File, unsigned Line,
|
|
StorageType Storage,
|
|
bool ShouldCreate = true);
|
|
|
|
TempDILabel cloneImpl() const {
|
|
return getTemporary(getContext(), getScope(), getName(), getFile(),
|
|
getLine());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DILabel,
|
|
(DILocalScope * Scope, StringRef Name, DIFile *File,
|
|
unsigned Line),
|
|
(Scope, Name, File, Line))
|
|
DEFINE_MDNODE_GET(DILabel,
|
|
(Metadata * Scope, MDString *Name, Metadata *File,
|
|
unsigned Line),
|
|
(Scope, Name, File, Line))
|
|
|
|
TempDILabel clone() const { return cloneImpl(); }
|
|
|
|
/// Get the local scope for this label.
|
|
///
|
|
/// Labels must be defined in a local scope.
|
|
DILocalScope *getScope() const {
|
|
return cast_or_null<DILocalScope>(getRawScope());
|
|
}
|
|
unsigned getLine() const { return Line; }
|
|
StringRef getName() const { return getStringOperand(1); }
|
|
DIFile *getFile() const { return cast_or_null<DIFile>(getRawFile()); }
|
|
|
|
Metadata *getRawScope() const { return getOperand(0); }
|
|
MDString *getRawName() const { return getOperandAs<MDString>(1); }
|
|
Metadata *getRawFile() const { return getOperand(2); }
|
|
|
|
/// Check that a location is valid for this label.
|
|
///
|
|
/// Check that \c DL exists, is in the same subprogram, and has the same
|
|
/// inlined-at location as \c this. (Otherwise, it's not a valid attachment
|
|
/// to a \a DbgInfoIntrinsic.)
|
|
bool isValidLocationForIntrinsic(const DILocation *DL) const {
|
|
return DL && getScope()->getSubprogram() == DL->getScope()->getSubprogram();
|
|
}
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DILabelKind;
|
|
}
|
|
};
|
|
|
|
class DIObjCProperty : public DINode {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
unsigned Line;
|
|
unsigned Attributes;
|
|
|
|
DIObjCProperty(LLVMContext &C, StorageType Storage, unsigned Line,
|
|
unsigned Attributes, ArrayRef<Metadata *> Ops)
|
|
: DINode(C, DIObjCPropertyKind, Storage, dwarf::DW_TAG_APPLE_property,
|
|
Ops),
|
|
Line(Line), Attributes(Attributes) {}
|
|
~DIObjCProperty() = default;
|
|
|
|
static DIObjCProperty *
|
|
getImpl(LLVMContext &Context, StringRef Name, DIFile *File, unsigned Line,
|
|
StringRef GetterName, StringRef SetterName, unsigned Attributes,
|
|
DIType *Type, StorageType Storage, bool ShouldCreate = true) {
|
|
return getImpl(Context, getCanonicalMDString(Context, Name), File, Line,
|
|
getCanonicalMDString(Context, GetterName),
|
|
getCanonicalMDString(Context, SetterName), Attributes, Type,
|
|
Storage, ShouldCreate);
|
|
}
|
|
static DIObjCProperty *getImpl(LLVMContext &Context, MDString *Name,
|
|
Metadata *File, unsigned Line,
|
|
MDString *GetterName, MDString *SetterName,
|
|
unsigned Attributes, Metadata *Type,
|
|
StorageType Storage, bool ShouldCreate = true);
|
|
|
|
TempDIObjCProperty cloneImpl() const {
|
|
return getTemporary(getContext(), getName(), getFile(), getLine(),
|
|
getGetterName(), getSetterName(), getAttributes(),
|
|
getType());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DIObjCProperty,
|
|
(StringRef Name, DIFile *File, unsigned Line,
|
|
StringRef GetterName, StringRef SetterName,
|
|
unsigned Attributes, DIType *Type),
|
|
(Name, File, Line, GetterName, SetterName, Attributes,
|
|
Type))
|
|
DEFINE_MDNODE_GET(DIObjCProperty,
|
|
(MDString * Name, Metadata *File, unsigned Line,
|
|
MDString *GetterName, MDString *SetterName,
|
|
unsigned Attributes, Metadata *Type),
|
|
(Name, File, Line, GetterName, SetterName, Attributes,
|
|
Type))
|
|
|
|
TempDIObjCProperty clone() const { return cloneImpl(); }
|
|
|
|
unsigned getLine() const { return Line; }
|
|
unsigned getAttributes() const { return Attributes; }
|
|
StringRef getName() const { return getStringOperand(0); }
|
|
DIFile *getFile() const { return cast_or_null<DIFile>(getRawFile()); }
|
|
StringRef getGetterName() const { return getStringOperand(2); }
|
|
StringRef getSetterName() const { return getStringOperand(3); }
|
|
DIType *getType() const { return cast_or_null<DIType>(getRawType()); }
|
|
|
|
StringRef getFilename() const {
|
|
if (auto *F = getFile())
|
|
return F->getFilename();
|
|
return "";
|
|
}
|
|
|
|
StringRef getDirectory() const {
|
|
if (auto *F = getFile())
|
|
return F->getDirectory();
|
|
return "";
|
|
}
|
|
|
|
Optional<StringRef> getSource() const {
|
|
if (auto *F = getFile())
|
|
return F->getSource();
|
|
return None;
|
|
}
|
|
|
|
MDString *getRawName() const { return getOperandAs<MDString>(0); }
|
|
Metadata *getRawFile() const { return getOperand(1); }
|
|
MDString *getRawGetterName() const { return getOperandAs<MDString>(2); }
|
|
MDString *getRawSetterName() const { return getOperandAs<MDString>(3); }
|
|
Metadata *getRawType() const { return getOperand(4); }
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DIObjCPropertyKind;
|
|
}
|
|
};
|
|
|
|
/// An imported module (C++ using directive or similar).
|
|
class DIImportedEntity : public DINode {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
unsigned Line;
|
|
|
|
DIImportedEntity(LLVMContext &C, StorageType Storage, unsigned Tag,
|
|
unsigned Line, ArrayRef<Metadata *> Ops)
|
|
: DINode(C, DIImportedEntityKind, Storage, Tag, Ops), Line(Line) {}
|
|
~DIImportedEntity() = default;
|
|
|
|
static DIImportedEntity *getImpl(LLVMContext &Context, unsigned Tag,
|
|
DIScope *Scope, DINode *Entity, DIFile *File,
|
|
unsigned Line, StringRef Name,
|
|
StorageType Storage,
|
|
bool ShouldCreate = true) {
|
|
return getImpl(Context, Tag, Scope, Entity, File, Line,
|
|
getCanonicalMDString(Context, Name), Storage, ShouldCreate);
|
|
}
|
|
static DIImportedEntity *getImpl(LLVMContext &Context, unsigned Tag,
|
|
Metadata *Scope, Metadata *Entity,
|
|
Metadata *File, unsigned Line,
|
|
MDString *Name, StorageType Storage,
|
|
bool ShouldCreate = true);
|
|
|
|
TempDIImportedEntity cloneImpl() const {
|
|
return getTemporary(getContext(), getTag(), getScope(), getEntity(),
|
|
getFile(), getLine(), getName());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DIImportedEntity,
|
|
(unsigned Tag, DIScope *Scope, DINode *Entity, DIFile *File,
|
|
unsigned Line, StringRef Name = ""),
|
|
(Tag, Scope, Entity, File, Line, Name))
|
|
DEFINE_MDNODE_GET(DIImportedEntity,
|
|
(unsigned Tag, Metadata *Scope, Metadata *Entity,
|
|
Metadata *File, unsigned Line, MDString *Name),
|
|
(Tag, Scope, Entity, File, Line, Name))
|
|
|
|
TempDIImportedEntity clone() const { return cloneImpl(); }
|
|
|
|
unsigned getLine() const { return Line; }
|
|
DIScope *getScope() const { return cast_or_null<DIScope>(getRawScope()); }
|
|
DINode *getEntity() const { return cast_or_null<DINode>(getRawEntity()); }
|
|
StringRef getName() const { return getStringOperand(2); }
|
|
DIFile *getFile() const { return cast_or_null<DIFile>(getRawFile()); }
|
|
|
|
Metadata *getRawScope() const { return getOperand(0); }
|
|
Metadata *getRawEntity() const { return getOperand(1); }
|
|
MDString *getRawName() const { return getOperandAs<MDString>(2); }
|
|
Metadata *getRawFile() const { return getOperand(3); }
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DIImportedEntityKind;
|
|
}
|
|
};
|
|
|
|
/// A pair of DIGlobalVariable and DIExpression.
|
|
class DIGlobalVariableExpression : public MDNode {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
DIGlobalVariableExpression(LLVMContext &C, StorageType Storage,
|
|
ArrayRef<Metadata *> Ops)
|
|
: MDNode(C, DIGlobalVariableExpressionKind, Storage, Ops) {}
|
|
~DIGlobalVariableExpression() = default;
|
|
|
|
static DIGlobalVariableExpression *
|
|
getImpl(LLVMContext &Context, Metadata *Variable, Metadata *Expression,
|
|
StorageType Storage, bool ShouldCreate = true);
|
|
|
|
TempDIGlobalVariableExpression cloneImpl() const {
|
|
return getTemporary(getContext(), getVariable(), getExpression());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DIGlobalVariableExpression,
|
|
(Metadata * Variable, Metadata *Expression),
|
|
(Variable, Expression))
|
|
|
|
TempDIGlobalVariableExpression clone() const { return cloneImpl(); }
|
|
|
|
Metadata *getRawVariable() const { return getOperand(0); }
|
|
|
|
DIGlobalVariable *getVariable() const {
|
|
return cast_or_null<DIGlobalVariable>(getRawVariable());
|
|
}
|
|
|
|
Metadata *getRawExpression() const { return getOperand(1); }
|
|
|
|
DIExpression *getExpression() const {
|
|
return cast<DIExpression>(getRawExpression());
|
|
}
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DIGlobalVariableExpressionKind;
|
|
}
|
|
};
|
|
|
|
/// Macro Info DWARF-like metadata node.
|
|
///
|
|
/// A metadata node with a DWARF macro info (i.e., a constant named
|
|
/// \c DW_MACINFO_*, defined in llvm/BinaryFormat/Dwarf.h). Called \a
|
|
/// DIMacroNode
|
|
/// because it's potentially used for non-DWARF output.
|
|
class DIMacroNode : public MDNode {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
protected:
|
|
DIMacroNode(LLVMContext &C, unsigned ID, StorageType Storage, unsigned MIType,
|
|
ArrayRef<Metadata *> Ops1, ArrayRef<Metadata *> Ops2 = None)
|
|
: MDNode(C, ID, Storage, Ops1, Ops2) {
|
|
assert(MIType < 1u << 16);
|
|
SubclassData16 = MIType;
|
|
}
|
|
~DIMacroNode() = default;
|
|
|
|
template <class Ty> Ty *getOperandAs(unsigned I) const {
|
|
return cast_or_null<Ty>(getOperand(I));
|
|
}
|
|
|
|
StringRef getStringOperand(unsigned I) const {
|
|
if (auto *S = getOperandAs<MDString>(I))
|
|
return S->getString();
|
|
return StringRef();
|
|
}
|
|
|
|
static MDString *getCanonicalMDString(LLVMContext &Context, StringRef S) {
|
|
if (S.empty())
|
|
return nullptr;
|
|
return MDString::get(Context, S);
|
|
}
|
|
|
|
public:
|
|
unsigned getMacinfoType() const { return SubclassData16; }
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
switch (MD->getMetadataID()) {
|
|
default:
|
|
return false;
|
|
case DIMacroKind:
|
|
case DIMacroFileKind:
|
|
return true;
|
|
}
|
|
}
|
|
};
|
|
|
|
class DIMacro : public DIMacroNode {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
unsigned Line;
|
|
|
|
DIMacro(LLVMContext &C, StorageType Storage, unsigned MIType, unsigned Line,
|
|
ArrayRef<Metadata *> Ops)
|
|
: DIMacroNode(C, DIMacroKind, Storage, MIType, Ops), Line(Line) {}
|
|
~DIMacro() = default;
|
|
|
|
static DIMacro *getImpl(LLVMContext &Context, unsigned MIType, unsigned Line,
|
|
StringRef Name, StringRef Value, StorageType Storage,
|
|
bool ShouldCreate = true) {
|
|
return getImpl(Context, MIType, Line, getCanonicalMDString(Context, Name),
|
|
getCanonicalMDString(Context, Value), Storage, ShouldCreate);
|
|
}
|
|
static DIMacro *getImpl(LLVMContext &Context, unsigned MIType, unsigned Line,
|
|
MDString *Name, MDString *Value, StorageType Storage,
|
|
bool ShouldCreate = true);
|
|
|
|
TempDIMacro cloneImpl() const {
|
|
return getTemporary(getContext(), getMacinfoType(), getLine(), getName(),
|
|
getValue());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DIMacro, (unsigned MIType, unsigned Line, StringRef Name,
|
|
StringRef Value = ""),
|
|
(MIType, Line, Name, Value))
|
|
DEFINE_MDNODE_GET(DIMacro, (unsigned MIType, unsigned Line, MDString *Name,
|
|
MDString *Value),
|
|
(MIType, Line, Name, Value))
|
|
|
|
TempDIMacro clone() const { return cloneImpl(); }
|
|
|
|
unsigned getLine() const { return Line; }
|
|
|
|
StringRef getName() const { return getStringOperand(0); }
|
|
StringRef getValue() const { return getStringOperand(1); }
|
|
|
|
MDString *getRawName() const { return getOperandAs<MDString>(0); }
|
|
MDString *getRawValue() const { return getOperandAs<MDString>(1); }
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DIMacroKind;
|
|
}
|
|
};
|
|
|
|
class DIMacroFile : public DIMacroNode {
|
|
friend class LLVMContextImpl;
|
|
friend class MDNode;
|
|
|
|
unsigned Line;
|
|
|
|
DIMacroFile(LLVMContext &C, StorageType Storage, unsigned MIType,
|
|
unsigned Line, ArrayRef<Metadata *> Ops)
|
|
: DIMacroNode(C, DIMacroFileKind, Storage, MIType, Ops), Line(Line) {}
|
|
~DIMacroFile() = default;
|
|
|
|
static DIMacroFile *getImpl(LLVMContext &Context, unsigned MIType,
|
|
unsigned Line, DIFile *File,
|
|
DIMacroNodeArray Elements, StorageType Storage,
|
|
bool ShouldCreate = true) {
|
|
return getImpl(Context, MIType, Line, static_cast<Metadata *>(File),
|
|
Elements.get(), Storage, ShouldCreate);
|
|
}
|
|
|
|
static DIMacroFile *getImpl(LLVMContext &Context, unsigned MIType,
|
|
unsigned Line, Metadata *File, Metadata *Elements,
|
|
StorageType Storage, bool ShouldCreate = true);
|
|
|
|
TempDIMacroFile cloneImpl() const {
|
|
return getTemporary(getContext(), getMacinfoType(), getLine(), getFile(),
|
|
getElements());
|
|
}
|
|
|
|
public:
|
|
DEFINE_MDNODE_GET(DIMacroFile, (unsigned MIType, unsigned Line, DIFile *File,
|
|
DIMacroNodeArray Elements),
|
|
(MIType, Line, File, Elements))
|
|
DEFINE_MDNODE_GET(DIMacroFile, (unsigned MIType, unsigned Line,
|
|
Metadata *File, Metadata *Elements),
|
|
(MIType, Line, File, Elements))
|
|
|
|
TempDIMacroFile clone() const { return cloneImpl(); }
|
|
|
|
void replaceElements(DIMacroNodeArray Elements) {
|
|
#ifndef NDEBUG
|
|
for (DIMacroNode *Op : getElements())
|
|
assert(is_contained(Elements->operands(), Op) &&
|
|
"Lost a macro node during macro node list replacement");
|
|
#endif
|
|
replaceOperandWith(1, Elements.get());
|
|
}
|
|
|
|
unsigned getLine() const { return Line; }
|
|
DIFile *getFile() const { return cast_or_null<DIFile>(getRawFile()); }
|
|
|
|
DIMacroNodeArray getElements() const {
|
|
return cast_or_null<MDTuple>(getRawElements());
|
|
}
|
|
|
|
Metadata *getRawFile() const { return getOperand(0); }
|
|
Metadata *getRawElements() const { return getOperand(1); }
|
|
|
|
static bool classof(const Metadata *MD) {
|
|
return MD->getMetadataID() == DIMacroFileKind;
|
|
}
|
|
};
|
|
|
|
/// Identifies a unique instance of a variable.
|
|
///
|
|
/// Storage for identifying a potentially inlined instance of a variable,
|
|
/// or a fragment thereof. This guarantees that exactly one variable instance
|
|
/// may be identified by this class, even when that variable is a fragment of
|
|
/// an aggregate variable and/or there is another inlined instance of the same
|
|
/// source code variable nearby.
|
|
/// This class does not necessarily uniquely identify that variable: it is
|
|
/// possible that a DebugVariable with different parameters may point to the
|
|
/// same variable instance, but not that one DebugVariable points to multiple
|
|
/// variable instances.
|
|
class DebugVariable {
|
|
using FragmentInfo = DIExpression::FragmentInfo;
|
|
|
|
const DILocalVariable *Variable;
|
|
Optional<FragmentInfo> Fragment;
|
|
const DILocation *InlinedAt;
|
|
|
|
/// Fragment that will overlap all other fragments. Used as default when
|
|
/// caller demands a fragment.
|
|
static const FragmentInfo DefaultFragment;
|
|
|
|
public:
|
|
DebugVariable(const DILocalVariable *Var, Optional<FragmentInfo> FragmentInfo,
|
|
const DILocation *InlinedAt)
|
|
: Variable(Var), Fragment(FragmentInfo), InlinedAt(InlinedAt) {}
|
|
|
|
DebugVariable(const DILocalVariable *Var, const DIExpression *DIExpr,
|
|
const DILocation *InlinedAt)
|
|
: Variable(Var),
|
|
Fragment(DIExpr ? DIExpr->getFragmentInfo() : NoneType()),
|
|
InlinedAt(InlinedAt) {}
|
|
|
|
const DILocalVariable *getVariable() const { return Variable; }
|
|
const Optional<FragmentInfo> getFragment() const { return Fragment; }
|
|
const DILocation *getInlinedAt() const { return InlinedAt; }
|
|
|
|
const FragmentInfo getFragmentOrDefault() const {
|
|
return Fragment.getValueOr(DefaultFragment);
|
|
}
|
|
|
|
static bool isDefaultFragment(const FragmentInfo F) {
|
|
return F == DefaultFragment;
|
|
}
|
|
|
|
bool operator==(const DebugVariable &Other) const {
|
|
return std::tie(Variable, Fragment, InlinedAt) ==
|
|
std::tie(Other.Variable, Other.Fragment, Other.InlinedAt);
|
|
}
|
|
|
|
bool operator<(const DebugVariable &Other) const {
|
|
return std::tie(Variable, Fragment, InlinedAt) <
|
|
std::tie(Other.Variable, Other.Fragment, Other.InlinedAt);
|
|
}
|
|
};
|
|
|
|
template <> struct DenseMapInfo<DebugVariable> {
|
|
using FragmentInfo = DIExpression::FragmentInfo;
|
|
|
|
/// Empty key: no key should be generated that has no DILocalVariable.
|
|
static inline DebugVariable getEmptyKey() {
|
|
return DebugVariable(nullptr, NoneType(), nullptr);
|
|
}
|
|
|
|
/// Difference in tombstone is that the Optional is meaningful.
|
|
static inline DebugVariable getTombstoneKey() {
|
|
return DebugVariable(nullptr, {{0, 0}}, nullptr);
|
|
}
|
|
|
|
static unsigned getHashValue(const DebugVariable &D) {
|
|
unsigned HV = 0;
|
|
const Optional<FragmentInfo> Fragment = D.getFragment();
|
|
if (Fragment)
|
|
HV = DenseMapInfo<FragmentInfo>::getHashValue(*Fragment);
|
|
|
|
return hash_combine(D.getVariable(), HV, D.getInlinedAt());
|
|
}
|
|
|
|
static bool isEqual(const DebugVariable &A, const DebugVariable &B) {
|
|
return A == B;
|
|
}
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#undef DEFINE_MDNODE_GET_UNPACK_IMPL
|
|
#undef DEFINE_MDNODE_GET_UNPACK
|
|
#undef DEFINE_MDNODE_GET
|
|
|
|
#endif // LLVM_IR_DEBUGINFOMETADATA_H
|