#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/StringSwitch.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DIBuilder.h"
// DIDescriptor
//===----------------------------------------------------------------------===//
+unsigned DIDescriptor::getFlag(StringRef Flag) {
+ return StringSwitch<unsigned>(Flag)
+#define HANDLE_DI_FLAG(ID, NAME) .Case("DIFlag" #NAME, Flag##NAME)
+#include "llvm/IR/DebugInfoFlags.def"
+ .Default(0);
+}
+
+const char *DIDescriptor::getFlagString(unsigned Flag) {
+ switch (Flag) {
+ default:
+ return "";
+#define HANDLE_DI_FLAG(ID, NAME) \
+ case Flag##NAME: \
+ return "DIFlag" #NAME;
+#include "llvm/IR/DebugInfoFlags.def"
+ }
+}
+
+unsigned DIDescriptor::splitFlags(unsigned Flags,
+ SmallVectorImpl<unsigned> &SplitFlags) {
+ // Accessibility flags need to be specially handled, since they're packed
+ // together.
+ if (unsigned A = Flags & FlagAccessibility) {
+ if (A == FlagPrivate)
+ SplitFlags.push_back(FlagPrivate);
+ else if (A == FlagProtected)
+ SplitFlags.push_back(FlagProtected);
+ else
+ SplitFlags.push_back(FlagPublic);
+ Flags &= ~A;
+ }
+
+#define HANDLE_DI_FLAG(ID, NAME) \
+ if (unsigned Bit = Flags & ID) { \
+ SplitFlags.push_back(Bit); \
+ Flags &= ~Bit; \
+ }
+#include "llvm/IR/DebugInfoFlags.def"
+
+ return Flags;
+}
+
bool DIDescriptor::Verify() const {
return DbgNode &&
(DIDerivedType(DbgNode).Verify() ||
DIObjCProperty(DbgNode).Verify() ||
DITemplateTypeParameter(DbgNode).Verify() ||
DITemplateValueParameter(DbgNode).Verify() ||
- DIImportedEntity(DbgNode).Verify() || DIExpression(DbgNode).Verify());
+ DIImportedEntity(DbgNode).Verify());
}
-static Value *getField(const MDNode *DbgNode, unsigned Elt) {
+static Metadata *getField(const MDNode *DbgNode, unsigned Elt) {
if (!DbgNode || Elt >= DbgNode->getNumOperands())
return nullptr;
return DbgNode->getOperand(Elt);
}
uint64_t DIDescriptor::getUInt64Field(unsigned Elt) const {
- if (!DbgNode)
- return 0;
-
- if (Elt < DbgNode->getNumOperands())
- if (ConstantInt *CI =
- dyn_cast_or_null<ConstantInt>(DbgNode->getOperand(Elt)))
+ if (auto *C = getConstantField(Elt))
+ if (ConstantInt *CI = dyn_cast<ConstantInt>(C))
return CI->getZExtValue();
return 0;
}
int64_t DIDescriptor::getInt64Field(unsigned Elt) const {
- if (!DbgNode)
- return 0;
-
- if (Elt < DbgNode->getNumOperands())
- if (ConstantInt *CI =
- dyn_cast_or_null<ConstantInt>(DbgNode->getOperand(Elt)))
- return CI->getSExtValue();
+ if (auto *C = getConstantField(Elt))
+ if (ConstantInt *CI = dyn_cast<ConstantInt>(C))
+ return CI->getZExtValue();
return 0;
}
}
GlobalVariable *DIDescriptor::getGlobalVariableField(unsigned Elt) const {
- if (!DbgNode)
- return nullptr;
-
- if (Elt < DbgNode->getNumOperands())
- return dyn_cast_or_null<GlobalVariable>(DbgNode->getOperand(Elt));
- return nullptr;
+ return dyn_cast_or_null<GlobalVariable>(getConstantField(Elt));
}
Constant *DIDescriptor::getConstantField(unsigned Elt) const {
return nullptr;
if (Elt < DbgNode->getNumOperands())
- return dyn_cast_or_null<Constant>(DbgNode->getOperand(Elt));
+ if (auto *C =
+ dyn_cast_or_null<ConstantAsMetadata>(DbgNode->getOperand(Elt)))
+ return C->getValue();
return nullptr;
}
Function *DIDescriptor::getFunctionField(unsigned Elt) const {
- if (!DbgNode)
- return nullptr;
-
- if (Elt < DbgNode->getNumOperands())
- return dyn_cast_or_null<Function>(DbgNode->getOperand(Elt));
- return nullptr;
-}
-
-void DIDescriptor::replaceFunctionField(unsigned Elt, Function *F) {
- if (!DbgNode)
- return;
-
- if (Elt < DbgNode->getNumOperands()) {
- MDNode *Node = const_cast<MDNode *>(DbgNode);
- Node->replaceOperandWith(Elt, F);
- }
-}
-
-static unsigned DIVariableInlinedAtIndex = 4;
-MDNode *DIVariable::getInlinedAt() const {
- return getNodeField(DbgNode, DIVariableInlinedAtIndex);
+ return dyn_cast_or_null<Function>(getConstantField(Elt));
}
/// \brief Return the size reported by the variable's type.
return Ty.getSizeInBits();
}
-uint64_t DIExpression::getElement(unsigned Idx) const {
- unsigned I = Idx + 1;
- assert(I < getNumHeaderFields() &&
- "non-existing complex address element requested");
- return getHeaderFieldAs<int64_t>(I);
+bool DIExpression::isBitPiece() const {
+ unsigned N = getNumElements();
+ return N >=3 && getElement(N-3) == dwarf::DW_OP_bit_piece;
}
-bool DIExpression::isVariablePiece() const {
- return getNumElements() && getElement(0) == dwarf::DW_OP_piece;
+uint64_t DIExpression::getBitPieceOffset() const {
+ assert(isBitPiece() && "not a piece");
+ return getElement(getNumElements()-2);
}
-uint64_t DIExpression::getPieceOffset() const {
- assert(isVariablePiece());
- return getElement(1);
+uint64_t DIExpression::getBitPieceSize() const {
+ assert(isBitPiece() && "not a piece");
+ return getElement(getNumElements()-1);
}
-uint64_t DIExpression::getPieceSize() const {
- assert(isVariablePiece());
- return getElement(2);
-}
-
-//===----------------------------------------------------------------------===//
-// Predicates
-//===----------------------------------------------------------------------===//
-
-bool DIDescriptor::isSubroutineType() const {
- return isCompositeType() && getTag() == dwarf::DW_TAG_subroutine_type;
-}
-
-bool DIDescriptor::isBasicType() const {
- if (!DbgNode)
- return false;
- switch (getTag()) {
- case dwarf::DW_TAG_base_type:
- case dwarf::DW_TAG_unspecified_type:
- return true;
- default:
- return false;
- }
-}
-
-bool DIDescriptor::isDerivedType() const {
- if (!DbgNode)
- return false;
- switch (getTag()) {
- case dwarf::DW_TAG_typedef:
- case dwarf::DW_TAG_pointer_type:
- case dwarf::DW_TAG_ptr_to_member_type:
- case dwarf::DW_TAG_reference_type:
- case dwarf::DW_TAG_rvalue_reference_type:
- case dwarf::DW_TAG_const_type:
- case dwarf::DW_TAG_volatile_type:
- case dwarf::DW_TAG_restrict_type:
- case dwarf::DW_TAG_member:
- case dwarf::DW_TAG_inheritance:
- case dwarf::DW_TAG_friend:
- return true;
- default:
- // CompositeTypes are currently modelled as DerivedTypes.
- return isCompositeType();
- }
-}
-
-bool DIDescriptor::isCompositeType() const {
- if (!DbgNode)
- return false;
- switch (getTag()) {
- case dwarf::DW_TAG_array_type:
- case dwarf::DW_TAG_structure_type:
- case dwarf::DW_TAG_union_type:
- case dwarf::DW_TAG_enumeration_type:
- case dwarf::DW_TAG_subroutine_type:
- case dwarf::DW_TAG_class_type:
- return true;
- default:
- return false;
- }
-}
-
-bool DIDescriptor::isVariable() const {
- if (!DbgNode)
- return false;
- switch (getTag()) {
- case dwarf::DW_TAG_auto_variable:
- case dwarf::DW_TAG_arg_variable:
- return true;
- default:
- return false;
- }
-}
-
-bool DIDescriptor::isType() const {
- return isBasicType() || isCompositeType() || isDerivedType();
-}
-
-bool DIDescriptor::isSubprogram() const {
- return DbgNode && getTag() == dwarf::DW_TAG_subprogram;
-}
-
-bool DIDescriptor::isGlobalVariable() const {
- return DbgNode && (getTag() == dwarf::DW_TAG_variable ||
- getTag() == dwarf::DW_TAG_constant);
-}
-
-bool DIDescriptor::isScope() const {
- if (!DbgNode)
- return false;
- switch (getTag()) {
- case dwarf::DW_TAG_compile_unit:
- case dwarf::DW_TAG_lexical_block:
- case dwarf::DW_TAG_subprogram:
- case dwarf::DW_TAG_namespace:
- case dwarf::DW_TAG_file_type:
- return true;
- default:
- break;
- }
- return isType();
-}
-
-bool DIDescriptor::isTemplateTypeParameter() const {
- return DbgNode && getTag() == dwarf::DW_TAG_template_type_parameter;
-}
-
-bool DIDescriptor::isTemplateValueParameter() const {
- return DbgNode && (getTag() == dwarf::DW_TAG_template_value_parameter ||
- getTag() == dwarf::DW_TAG_GNU_template_template_param ||
- getTag() == dwarf::DW_TAG_GNU_template_parameter_pack);
-}
-
-bool DIDescriptor::isCompileUnit() const {
- return DbgNode && getTag() == dwarf::DW_TAG_compile_unit;
-}
-
-bool DIDescriptor::isFile() const {
- return DbgNode && getTag() == dwarf::DW_TAG_file_type;
-}
-
-bool DIDescriptor::isNameSpace() const {
- return DbgNode && getTag() == dwarf::DW_TAG_namespace;
-}
-
-bool DIDescriptor::isLexicalBlockFile() const {
- return DbgNode && getTag() == dwarf::DW_TAG_lexical_block &&
- DbgNode->getNumOperands() == 3 && getNumHeaderFields() == 2;
-}
-
-bool DIDescriptor::isLexicalBlock() const {
- // FIXME: There are always exactly 4 header fields in DILexicalBlock, but
- // something relies on this returning true for DILexicalBlockFile.
- return DbgNode && getTag() == dwarf::DW_TAG_lexical_block &&
- DbgNode->getNumOperands() == 3 &&
- (getNumHeaderFields() == 2 || getNumHeaderFields() == 4);
-}
-
-bool DIDescriptor::isSubrange() const {
- return DbgNode && getTag() == dwarf::DW_TAG_subrange_type;
-}
-
-bool DIDescriptor::isEnumerator() const {
- return DbgNode && getTag() == dwarf::DW_TAG_enumerator;
-}
-
-bool DIDescriptor::isObjCProperty() const {
- return DbgNode && getTag() == dwarf::DW_TAG_APPLE_property;
-}
-
-bool DIDescriptor::isImportedEntity() const {
- return DbgNode && (getTag() == dwarf::DW_TAG_imported_module ||
- getTag() == dwarf::DW_TAG_imported_declaration);
-}
-
-bool DIDescriptor::isExpression() const {
- return DbgNode && (getTag() == dwarf::DW_TAG_expression);
+DIExpression::iterator DIExpression::Operand::getNext() const {
+ iterator it(I);
+ return ++it;
}
//===----------------------------------------------------------------------===//
// Simple Descriptor Constructors and other Methods
//===----------------------------------------------------------------------===//
-void DIDescriptor::replaceAllUsesWith(LLVMContext &VMContext, DIDescriptor D) {
-
+void DIDescriptor::replaceAllUsesWith(LLVMContext &, DIDescriptor D) {
assert(DbgNode && "Trying to replace an unverified type!");
+ assert(DbgNode->isTemporary() && "Expected temporary node");
+ TempMDNode Temp(get());
// Since we use a TrackingVH for the node, its easy for clients to manufacture
// legitimate situations where they want to replaceAllUsesWith() on something
// which, due to uniquing, has merged with the source. We shield clients from
// this detail by allowing a value to be replaced with replaceAllUsesWith()
// itself.
- const MDNode *DN = D;
- if (DbgNode == DN) {
- SmallVector<Value*, 10> Ops(DbgNode->getNumOperands());
- for (size_t i = 0; i != Ops.size(); ++i)
- Ops[i] = DbgNode->getOperand(i);
- DN = MDNode::get(VMContext, Ops);
+ if (Temp.get() == D.get()) {
+ DbgNode = MDNode::replaceWithUniqued(std::move(Temp));
+ return;
}
- MDNode *Node = const_cast<MDNode *>(DbgNode);
- const Value *V = cast_or_null<Value>(DN);
- Node->replaceAllUsesWith(const_cast<Value *>(V));
- MDNode::deleteTemporary(Node);
- DbgNode = DN;
+ Temp->replaceAllUsesWith(D.get());
+ DbgNode = D.get();
}
void DIDescriptor::replaceAllUsesWith(MDNode *D) {
-
assert(DbgNode && "Trying to replace an unverified type!");
assert(DbgNode != D && "This replacement should always happen");
- MDNode *Node = const_cast<MDNode *>(DbgNode);
- const MDNode *DN = D;
- const Value *V = cast_or_null<Value>(DN);
- Node->replaceAllUsesWith(const_cast<Value *>(V));
- MDNode::deleteTemporary(Node);
+ assert(DbgNode->isTemporary() && "Expected temporary node");
+ TempMDNode Node(get());
+ Node->replaceAllUsesWith(D);
}
bool DICompileUnit::Verify() const {
// Don't bother verifying the compilation directory or producer string
// as those could be empty.
- if (getFilename().empty())
- return false;
-
- return DbgNode->getNumOperands() == 7 && getNumHeaderFields() == 8;
-}
-
-bool DIObjCProperty::Verify() const {
- if (!isObjCProperty())
- return false;
-
- // Don't worry about the rest of the strings for now.
- return DbgNode->getNumOperands() == 3 && getNumHeaderFields() == 6;
-}
-
-/// \brief Check if a field at position Elt of a MDNode is a MDNode.
-///
-/// We currently allow an empty string and an integer.
-/// But we don't allow a non-empty string in a MDNode field.
-static bool fieldIsMDNode(const MDNode *DbgNode, unsigned Elt) {
- // FIXME: This function should return true, if the field is null or the field
- // is indeed a MDNode: return !Fld || isa<MDNode>(Fld).
- Value *Fld = getField(DbgNode, Elt);
- if (Fld && isa<MDString>(Fld) && !cast<MDString>(Fld)->getString().empty())
- return false;
- return true;
+ return !getFilename().empty();
}
-/// \brief Check if a field at position Elt of a MDNode is a MDString.
-static bool fieldIsMDString(const MDNode *DbgNode, unsigned Elt) {
- Value *Fld = getField(DbgNode, Elt);
- return !Fld || isa<MDString>(Fld);
-}
+bool DIObjCProperty::Verify() const { return isObjCProperty(); }
/// \brief Check if a value can be a reference to a type.
-static bool isTypeRef(const Value *Val) {
- return !Val ||
- (isa<MDString>(Val) && !cast<MDString>(Val)->getString().empty()) ||
- (isa<MDNode>(Val) && DIType(cast<MDNode>(Val)).isType());
-}
-
-/// \brief Check if referenced field might be a type.
-static bool fieldIsTypeRef(const MDNode *DbgNode, unsigned Elt) {
- Value *Fld = getField(DbgNode, Elt);
- return isTypeRef(Fld);
+static bool isTypeRef(const Metadata *MD) {
+ if (!MD)
+ return true;
+ if (auto *S = dyn_cast<MDString>(MD))
+ return !S->getString().empty();
+ return isa<MDType>(MD);
}
/// \brief Check if a value can be a ScopeRef.
-static bool isScopeRef(const Value *Val) {
- return !Val ||
- (isa<MDString>(Val) && !cast<MDString>(Val)->getString().empty()) ||
- // Not checking for Val->isScope() here, because it would work
- // only for lexical scopes and not all subclasses of DIScope.
- isa<MDNode>(Val);
+static bool isScopeRef(const Metadata *MD) {
+ if (!MD)
+ return true;
+ if (auto *S = dyn_cast<MDString>(MD))
+ return !S->getString().empty();
+ return isa<MDScope>(MD);
}
-/// \brief Check if a field at position Elt of a MDNode can be a ScopeRef.
-static bool fieldIsScopeRef(const MDNode *DbgNode, unsigned Elt) {
- Value *Fld = getField(DbgNode, Elt);
- return isScopeRef(Fld);
+#ifndef NDEBUG
+/// \brief Check if a value can be a DescriptorRef.
+static bool isDescriptorRef(const Metadata *MD) {
+ if (!MD)
+ return true;
+ if (auto *S = dyn_cast<MDString>(MD))
+ return !S->getString().empty();
+ return isa<MDNode>(MD);
}
+#endif
bool DIType::Verify() const {
- if (!isType())
- return false;
- // Make sure Context @ field 2 is MDNode.
- if (!fieldIsScopeRef(DbgNode, 2))
+ auto *N = dyn_cast_or_null<MDType>(DbgNode);
+ if (!N)
return false;
-
- // FIXME: Sink this into the various subclass verifies.
- uint16_t Tag = getTag();
- if (!isBasicType() && Tag != dwarf::DW_TAG_const_type &&
- Tag != dwarf::DW_TAG_volatile_type && Tag != dwarf::DW_TAG_pointer_type &&
- Tag != dwarf::DW_TAG_ptr_to_member_type &&
- Tag != dwarf::DW_TAG_reference_type &&
- Tag != dwarf::DW_TAG_rvalue_reference_type &&
- Tag != dwarf::DW_TAG_restrict_type && Tag != dwarf::DW_TAG_array_type &&
- Tag != dwarf::DW_TAG_enumeration_type &&
- Tag != dwarf::DW_TAG_subroutine_type &&
- Tag != dwarf::DW_TAG_inheritance && Tag != dwarf::DW_TAG_friend &&
- getFilename().empty())
+ if (!isScopeRef(N->getScope()))
return false;
// DIType is abstract, it should be a BasicType, a DerivedType or
// a CompositeType.
if (isBasicType())
return DIBasicType(DbgNode).Verify();
- else if (isCompositeType())
+
+ // FIXME: Sink this into the various subclass verifies.
+ if (getFilename().empty()) {
+ // Check whether the filename is allowed to be empty.
+ uint16_t Tag = getTag();
+ if (Tag != dwarf::DW_TAG_const_type && Tag != dwarf::DW_TAG_volatile_type &&
+ Tag != dwarf::DW_TAG_pointer_type &&
+ Tag != dwarf::DW_TAG_ptr_to_member_type &&
+ Tag != dwarf::DW_TAG_reference_type &&
+ Tag != dwarf::DW_TAG_rvalue_reference_type &&
+ Tag != dwarf::DW_TAG_restrict_type && Tag != dwarf::DW_TAG_array_type &&
+ Tag != dwarf::DW_TAG_enumeration_type &&
+ Tag != dwarf::DW_TAG_subroutine_type &&
+ Tag != dwarf::DW_TAG_inheritance && Tag != dwarf::DW_TAG_friend &&
+ Tag != dwarf::DW_TAG_structure_type && Tag != dwarf::DW_TAG_member &&
+ Tag != dwarf::DW_TAG_typedef)
+ return false;
+ }
+
+ if (isCompositeType())
return DICompositeType(DbgNode).Verify();
- else if (isDerivedType())
+ if (isDerivedType())
return DIDerivedType(DbgNode).Verify();
- else
- return false;
+ return false;
}
bool DIBasicType::Verify() const {
- return isBasicType() && DbgNode->getNumOperands() == 3 &&
- getNumHeaderFields() == 8;
+ return dyn_cast_or_null<MDBasicType>(DbgNode);
}
bool DIDerivedType::Verify() const {
- // Make sure DerivedFrom @ field 3 is TypeRef.
- if (!fieldIsTypeRef(DbgNode, 3))
+ auto *N = dyn_cast_or_null<MDDerivedTypeBase>(DbgNode);
+ if (!N)
return false;
- if (getTag() == dwarf::DW_TAG_ptr_to_member_type)
- // Make sure ClassType @ field 4 is a TypeRef.
- if (!fieldIsTypeRef(DbgNode, 4))
+ if (getTag() == dwarf::DW_TAG_ptr_to_member_type) {
+ auto *D = dyn_cast<MDDerivedType>(N);
+ if (!D)
return false;
-
- return isDerivedType() && DbgNode->getNumOperands() >= 4 &&
- DbgNode->getNumOperands() <= 8 && getNumHeaderFields() >= 7 &&
- getNumHeaderFields() <= 8;
+ if (!isTypeRef(D->getExtraData()))
+ return false;
+ }
+ return isTypeRef(N->getBaseType());
}
bool DICompositeType::Verify() const {
- if (!isCompositeType())
- return false;
-
- // Make sure DerivedFrom @ field 3 and ContainingType @ field 5 are TypeRef.
- if (!fieldIsTypeRef(DbgNode, 3))
- return false;
- if (!fieldIsTypeRef(DbgNode, 5))
- return false;
-
- // Make sure the type identifier at field 7 is MDString, it can be null.
- if (!fieldIsMDString(DbgNode, 7))
- return false;
-
- // A subroutine type can't be both & and &&.
- if (isLValueReference() && isRValueReference())
- return false;
-
- return DbgNode->getNumOperands() == 8 && getNumHeaderFields() == 8;
+ auto *N = dyn_cast_or_null<MDCompositeTypeBase>(DbgNode);
+ return N && isTypeRef(N->getBaseType()) && isTypeRef(N->getVTableHolder()) &&
+ !(isLValueReference() && isRValueReference());
}
bool DISubprogram::Verify() const {
- if (!isSubprogram())
+ auto *N = dyn_cast_or_null<MDSubprogram>(DbgNode);
+ if (!N)
return false;
- // Make sure context @ field 2 is a ScopeRef and type @ field 3 is a MDNode.
- if (!fieldIsScopeRef(DbgNode, 2))
+ if (!isScopeRef(N->getScope()))
return false;
- if (!fieldIsMDNode(DbgNode, 3))
- return false;
- // Containing type @ field 4.
- if (!fieldIsTypeRef(DbgNode, 4))
+
+ if (auto *Op = N->getType())
+ if (!isa<MDNode>(Op))
+ return false;
+
+ if (!isTypeRef(getContainingType()))
return false;
- // A subprogram can't be both & and &&.
if (isLValueReference() && isRValueReference())
return false;
// If a DISubprogram has an llvm::Function*, then scope chains from all
// instructions within the function should lead to this DISubprogram.
if (auto *F = getFunction()) {
- LLVMContext &Ctxt = F->getContext();
for (auto &BB : *F) {
for (auto &I : BB) {
DebugLoc DL = I.getDebugLoc();
MDNode *Scope = nullptr;
MDNode *IA = nullptr;
// walk the inlined-at scopes
- while (DL.getScopeAndInlinedAt(Scope, IA, F->getContext()), IA)
+ while ((IA = DL.getInlinedAt()))
DL = DebugLoc::getFromDILocation(IA);
- DL.getScopeAndInlinedAt(Scope, IA, Ctxt);
+ DL.getScopeAndInlinedAt(Scope, IA);
+ if (!Scope)
+ return false;
assert(!IA);
while (!DIDescriptor(Scope).isSubprogram()) {
DILexicalBlockFile D(Scope);
Scope = D.isLexicalBlockFile()
? D.getScope()
- : DebugLoc::getFromDILexicalBlock(Scope).getScope(Ctxt);
+ : DebugLoc::getFromDILexicalBlock(Scope).getScope();
+ if (!Scope)
+ return false;
}
if (!DISubprogram(Scope).describes(F))
return false;
}
}
}
- return DbgNode->getNumOperands() == 9 && getNumHeaderFields() == 12;
+
+ return true;
}
bool DIGlobalVariable::Verify() const {
- if (!isGlobalVariable())
- return false;
+ auto *N = dyn_cast_or_null<MDGlobalVariable>(DbgNode);
- if (getDisplayName().empty())
- return false;
- // Make sure context @ field 1 is an MDNode.
- if (!fieldIsMDNode(DbgNode, 1))
- return false;
- // Make sure that type @ field 3 is a DITypeRef.
- if (!fieldIsTypeRef(DbgNode, 3))
+ if (!N)
return false;
- // Make sure StaticDataMemberDeclaration @ field 5 is MDNode.
- if (!fieldIsMDNode(DbgNode, 5))
+
+ if (N->getDisplayName().empty())
return false;
- return DbgNode->getNumOperands() == 6 && getNumHeaderFields() == 7;
+ if (auto *Op = N->getScope())
+ if (!isa<MDNode>(Op))
+ return false;
+
+ if (auto *Op = N->getStaticDataMemberDeclaration())
+ if (!isa<MDNode>(Op))
+ return false;
+
+ return isTypeRef(N->getType());
}
bool DIVariable::Verify() const {
- if (!isVariable())
- return false;
-
- // Make sure context @ field 1 is an MDNode.
- if (!fieldIsMDNode(DbgNode, 1))
- return false;
- // Make sure that type @ field 3 is a DITypeRef.
- if (!fieldIsTypeRef(DbgNode, 3))
- return false;
+ auto *N = dyn_cast_or_null<MDLocalVariable>(DbgNode);
- // Check the number of header fields, which is common between complex and
- // simple variables.
- if (getNumHeaderFields() != 4)
+ if (!N)
return false;
- // Variable without an inline location.
- if (DbgNode->getNumOperands() == 4)
- return true;
-
- // Variable with an inline location.
- return getInlinedAt() != nullptr && DbgNode->getNumOperands() == 5;
-}
-
-bool DIExpression::Verify() const {
- // Empty DIExpressions may be represented as a nullptr.
- if (!DbgNode)
- return true;
+ if (auto *Op = N->getScope())
+ if (!isa<MDNode>(Op))
+ return false;
- return isExpression() && DbgNode->getNumOperands() == 1;
+ return isTypeRef(N->getType());
}
bool DILocation::Verify() const {
- if (!DbgNode)
- return false;
-
- return DbgNode->getNumOperands() == 4;
+ return dyn_cast_or_null<MDLocation>(DbgNode);
}
-
bool DINameSpace::Verify() const {
- if (!isNameSpace())
- return false;
- return DbgNode->getNumOperands() == 3 && getNumHeaderFields() == 3;
+ return dyn_cast_or_null<MDNamespace>(DbgNode);
}
-
-MDNode *DIFile::getFileNode() const { return getNodeField(DbgNode, 1); }
-
-bool DIFile::Verify() const {
- return isFile() && DbgNode->getNumOperands() == 2;
-}
-
+bool DIFile::Verify() const { return dyn_cast_or_null<MDFile>(DbgNode); }
bool DIEnumerator::Verify() const {
- return isEnumerator() && DbgNode->getNumOperands() == 1 &&
- getNumHeaderFields() == 3;
+ return dyn_cast_or_null<MDEnumerator>(DbgNode);
}
-
bool DISubrange::Verify() const {
- return isSubrange() && DbgNode->getNumOperands() == 1 &&
- getNumHeaderFields() == 3;
+ return dyn_cast_or_null<MDSubrange>(DbgNode);
}
-
bool DILexicalBlock::Verify() const {
- return isLexicalBlock() && DbgNode->getNumOperands() == 3 &&
- getNumHeaderFields() == 4;
+ return dyn_cast_or_null<MDLexicalBlock>(DbgNode);
}
-
bool DILexicalBlockFile::Verify() const {
- return isLexicalBlockFile() && DbgNode->getNumOperands() == 3 &&
- getNumHeaderFields() == 2;
+ return dyn_cast_or_null<MDLexicalBlockFile>(DbgNode);
}
-
bool DITemplateTypeParameter::Verify() const {
- return isTemplateTypeParameter() && DbgNode->getNumOperands() == 4 &&
- getNumHeaderFields() == 4;
+ return dyn_cast_or_null<MDTemplateTypeParameter>(DbgNode);
}
-
bool DITemplateValueParameter::Verify() const {
- return isTemplateValueParameter() && DbgNode->getNumOperands() == 5 &&
- getNumHeaderFields() == 4;
+ return dyn_cast_or_null<MDTemplateValueParameter>(DbgNode);
}
-
bool DIImportedEntity::Verify() const {
- return isImportedEntity() && DbgNode->getNumOperands() == 3 &&
- getNumHeaderFields() == 3;
+ return dyn_cast_or_null<MDImportedEntity>(DbgNode);
}
-MDNode *DIDerivedType::getObjCProperty() const {
- return getNodeField(DbgNode, 4);
-}
-
-MDString *DICompositeType::getIdentifier() const {
- return cast_or_null<MDString>(getField(DbgNode, 7));
-}
-
-#ifndef NDEBUG
-static void VerifySubsetOf(const MDNode *LHS, const MDNode *RHS) {
- for (unsigned i = 0; i != LHS->getNumOperands(); ++i) {
- // Skip the 'empty' list (that's a single i32 0, rather than truly empty).
- if (i == 0 && isa<ConstantInt>(LHS->getOperand(i)))
- continue;
- const MDNode *E = cast<MDNode>(LHS->getOperand(i));
- bool found = false;
- for (unsigned j = 0; !found && j != RHS->getNumOperands(); ++j)
- found = E == RHS->getOperand(j);
- assert(found && "Losing a member during member list replacement");
- }
-}
-#endif
-
void DICompositeType::setArraysHelper(MDNode *Elements, MDNode *TParams) {
- TrackingVH<MDNode> N(*this);
- if (Elements) {
-#ifndef NDEBUG
- // Check that the new list of members contains all the old members as well.
- if (const MDNode *El = cast_or_null<MDNode>(N->getOperand(4)))
- VerifySubsetOf(El, Elements);
-#endif
- N->replaceOperandWith(4, Elements);
- }
+ TypedTrackingMDRef<MDCompositeTypeBase> N(get());
+ if (Elements)
+ N->replaceElements(cast<MDTuple>(Elements));
if (TParams)
- N->replaceOperandWith(6, TParams);
+ N->replaceTemplateParams(cast<MDTuple>(TParams));
DbgNode = N;
}
}
void DICompositeType::setContainingType(DICompositeType ContainingType) {
- TrackingVH<MDNode> N(*this);
- N->replaceOperandWith(5, ContainingType.getRef());
+ TypedTrackingMDRef<MDCompositeTypeBase> N(get());
+ N->replaceVTableHolder(ContainingType.getRef());
DbgNode = N;
}
return !DISubprogram(getContext()).describes(CurFn);
}
+Function *DISubprogram::getFunction() const {
+ if (auto *N = get())
+ if (auto *C = dyn_cast_or_null<ConstantAsMetadata>(N->getFunction()))
+ return dyn_cast<Function>(C->getValue());
+ return nullptr;
+}
+
bool DISubprogram::describes(const Function *F) {
assert(F && "Invalid function");
if (F == getFunction())
return false;
}
-MDNode *DISubprogram::getVariablesNodes() const {
- return getNodeField(DbgNode, 8);
-}
-
-DIArray DISubprogram::getVariables() const {
- return DIArray(getNodeField(DbgNode, 8));
-}
-
-Value *DITemplateValueParameter::getValue() const {
- return getField(DbgNode, 3);
+GlobalVariable *DIGlobalVariable::getGlobal() const {
+ return dyn_cast_or_null<GlobalVariable>(getConstant());
}
DIScopeRef DIScope::getContext() const {
}
StringRef DIScope::getFilename() const {
- if (!DbgNode)
- return StringRef();
- return ::getStringField(getNodeField(DbgNode, 1), 0);
+ if (auto *N = get())
+ return ::getStringField(dyn_cast_or_null<MDNode>(N->getFile()), 0);
+ return "";
}
StringRef DIScope::getDirectory() const {
- if (!DbgNode)
- return StringRef();
- return ::getStringField(getNodeField(DbgNode, 1), 1);
-}
-
-DIArray DICompileUnit::getEnumTypes() const {
- if (!DbgNode || DbgNode->getNumOperands() < 7)
- return DIArray();
-
- return DIArray(getNodeField(DbgNode, 2));
-}
-
-DIArray DICompileUnit::getRetainedTypes() const {
- if (!DbgNode || DbgNode->getNumOperands() < 7)
- return DIArray();
-
- return DIArray(getNodeField(DbgNode, 3));
-}
-
-DIArray DICompileUnit::getSubprograms() const {
- if (!DbgNode || DbgNode->getNumOperands() < 7)
- return DIArray();
-
- return DIArray(getNodeField(DbgNode, 4));
-}
-
-DIArray DICompileUnit::getGlobalVariables() const {
- if (!DbgNode || DbgNode->getNumOperands() < 7)
- return DIArray();
-
- return DIArray(getNodeField(DbgNode, 5));
-}
-
-DIArray DICompileUnit::getImportedEntities() const {
- if (!DbgNode || DbgNode->getNumOperands() < 7)
- return DIArray();
-
- return DIArray(getNodeField(DbgNode, 6));
+ if (auto *N = get())
+ return ::getStringField(dyn_cast_or_null<MDNode>(N->getFile()), 1);
+ return "";
}
void DICompileUnit::replaceSubprograms(DIArray Subprograms) {
assert(Verify() && "Expected compile unit");
- if (Subprograms == getSubprograms())
- return;
-
- const_cast<MDNode *>(DbgNode)->replaceOperandWith(4, Subprograms);
+ get()->replaceSubprograms(cast_or_null<MDTuple>(Subprograms.get()));
}
void DICompileUnit::replaceGlobalVariables(DIArray GlobalVariables) {
assert(Verify() && "Expected compile unit");
- if (GlobalVariables == getGlobalVariables())
- return;
-
- const_cast<MDNode *>(DbgNode)->replaceOperandWith(5, GlobalVariables);
+ get()->replaceGlobalVariables(cast_or_null<MDTuple>(GlobalVariables.get()));
}
DILocation DILocation::copyWithNewScope(LLVMContext &Ctx,
DILexicalBlockFile NewScope) {
- SmallVector<Value *, 10> Elts;
assert(Verify());
- for (unsigned I = 0; I < DbgNode->getNumOperands(); ++I) {
- if (I != 2)
- Elts.push_back(DbgNode->getOperand(I));
- else
- Elts.push_back(NewScope);
- }
- MDNode *NewDIL = MDNode::get(Ctx, Elts);
- return DILocation(NewDIL);
+ assert(NewScope && "Expected valid scope");
+
+ const auto *Old = cast<MDLocation>(DbgNode);
+ return DILocation(MDLocation::get(Ctx, Old->getLine(), Old->getColumn(),
+ NewScope, Old->getInlinedAt()));
}
unsigned DILocation::computeNewDiscriminator(LLVMContext &Ctx) {
DIVariable llvm::createInlinedVariable(MDNode *DV, MDNode *InlinedScope,
LLVMContext &VMContext) {
assert(DIVariable(DV).Verify() && "Expected a DIVariable");
- if (!InlinedScope)
- return cleanseInlinedVariable(DV, VMContext);
-
- // Insert inlined scope.
- SmallVector<Value *, 8> Elts;
- for (unsigned I = 0, E = DIVariableInlinedAtIndex; I != E; ++I)
- Elts.push_back(DV->getOperand(I));
- Elts.push_back(InlinedScope);
-
- DIVariable Inlined(MDNode::get(VMContext, Elts));
- assert(Inlined.Verify() && "Expected to create a DIVariable");
- return Inlined;
+ return cast<MDLocalVariable>(DV)
+ ->withInline(cast_or_null<MDLocation>(InlinedScope));
}
DIVariable llvm::cleanseInlinedVariable(MDNode *DV, LLVMContext &VMContext) {
assert(DIVariable(DV).Verify() && "Expected a DIVariable");
- if (!DIVariable(DV).getInlinedAt())
- return DIVariable(DV);
-
- // Remove inlined scope.
- SmallVector<Value *, 8> Elts;
- for (unsigned I = 0, E = DIVariableInlinedAtIndex; I != E; ++I)
- Elts.push_back(DV->getOperand(I));
-
- DIVariable Cleansed(MDNode::get(VMContext, Elts));
- assert(Cleansed.Verify() && "Expected to create a DIVariable");
- return Cleansed;
+ return cast<MDLocalVariable>(DV)->withoutInline();
}
DISubprogram llvm::getDISubprogram(const MDNode *Scope) {
if (Inst == BB.end())
continue;
DebugLoc DLoc = Inst->getDebugLoc();
- const MDNode *Scope = DLoc.getScopeNode(F->getParent()->getContext());
+ const MDNode *Scope = DLoc.getScopeNode();
DISubprogram Subprogram = getDISubprogram(Scope);
return Subprogram.describes(F) ? Subprogram : DISubprogram();
}
DIArray Imports = CU.getImportedEntities();
for (unsigned i = 0, e = Imports.getNumElements(); i != e; ++i) {
DIImportedEntity Import = DIImportedEntity(Imports.getElement(i));
+ if (!Import)
+ continue;
DIDescriptor Entity = Import.getEntity().resolve(TypeIdentifierMap);
if (Entity.isType())
processType(DIType(Entity));
DIDescriptor Element = TParams.getElement(I);
if (Element.isTemplateTypeParameter()) {
DITemplateTypeParameter TType(Element);
- processScope(TType.getContext().resolve(TypeIdentifierMap));
processType(TType.getType().resolve(TypeIdentifierMap));
} else if (Element.isTemplateValueParameter()) {
DITemplateValueParameter TVal(Element);
- processScope(TVal.getContext().resolve(TypeIdentifierMap));
processType(TVal.getType().resolve(TypeIdentifierMap));
}
}
if (!DV.isVariable())
return;
- if (!NodesSeen.insert(DV))
+ if (!NodesSeen.insert(DV).second)
return;
processScope(DIVariable(N).getContext());
processType(DIVariable(N).getType().resolve(TypeIdentifierMap));
if (!DV.isVariable())
return;
- if (!NodesSeen.insert(DV))
+ if (!NodesSeen.insert(DV).second)
return;
processScope(DIVariable(N).getContext());
processType(DIVariable(N).getType().resolve(TypeIdentifierMap));
if (!DT)
return false;
- if (!NodesSeen.insert(DT))
+ if (!NodesSeen.insert(DT).second)
return false;
TYs.push_back(DT);
bool DebugInfoFinder::addCompileUnit(DICompileUnit CU) {
if (!CU)
return false;
- if (!NodesSeen.insert(CU))
+ if (!NodesSeen.insert(CU).second)
return false;
CUs.push_back(CU);
if (!DIG)
return false;
- if (!NodesSeen.insert(DIG))
+ if (!NodesSeen.insert(DIG).second)
return false;
GVs.push_back(DIG);
if (!SP)
return false;
- if (!NodesSeen.insert(SP))
+ if (!NodesSeen.insert(SP).second)
return false;
SPs.push_back(SP);
// as null for now.
if (Scope->getNumOperands() == 0)
return false;
- if (!NodesSeen.insert(Scope))
+ if (!NodesSeen.insert(Scope).second)
return false;
Scopes.push_back(Scope);
return true;
}
void DIDescriptor::print(raw_ostream &OS) const {
- if (!DbgNode)
- return;
-
- if (const char *Tag = dwarf::TagString(getTag()))
- OS << "[ " << Tag << " ]";
-
- if (this->isSubrange()) {
- DISubrange(DbgNode).printInternal(OS);
- } else if (this->isCompileUnit()) {
- DICompileUnit(DbgNode).printInternal(OS);
- } else if (this->isFile()) {
- DIFile(DbgNode).printInternal(OS);
- } else if (this->isEnumerator()) {
- DIEnumerator(DbgNode).printInternal(OS);
- } else if (this->isBasicType()) {
- DIType(DbgNode).printInternal(OS);
- } else if (this->isDerivedType()) {
- DIDerivedType(DbgNode).printInternal(OS);
- } else if (this->isCompositeType()) {
- DICompositeType(DbgNode).printInternal(OS);
- } else if (this->isSubprogram()) {
- DISubprogram(DbgNode).printInternal(OS);
- } else if (this->isGlobalVariable()) {
- DIGlobalVariable(DbgNode).printInternal(OS);
- } else if (this->isVariable()) {
- DIVariable(DbgNode).printInternal(OS);
- } else if (this->isObjCProperty()) {
- DIObjCProperty(DbgNode).printInternal(OS);
- } else if (this->isNameSpace()) {
- DINameSpace(DbgNode).printInternal(OS);
- } else if (this->isScope()) {
- DIScope(DbgNode).printInternal(OS);
- } else if (this->isExpression()) {
- DIExpression(DbgNode).printInternal(OS);
- }
-}
-
-void DISubrange::printInternal(raw_ostream &OS) const {
- int64_t Count = getCount();
- if (Count != -1)
- OS << " [" << getLo() << ", " << Count - 1 << ']';
- else
- OS << " [unbounded]";
-}
-
-void DIScope::printInternal(raw_ostream &OS) const {
- OS << " [" << getDirectory() << "/" << getFilename() << ']';
-}
-
-void DICompileUnit::printInternal(raw_ostream &OS) const {
- DIScope::printInternal(OS);
- OS << " [";
- unsigned Lang = getLanguage();
- if (const char *LangStr = dwarf::LanguageString(Lang))
- OS << LangStr;
- else
- (OS << "lang 0x").write_hex(Lang);
- OS << ']';
-}
-
-void DIEnumerator::printInternal(raw_ostream &OS) const {
- OS << " [" << getName() << " :: " << getEnumValue() << ']';
-}
-
-void DIType::printInternal(raw_ostream &OS) const {
- if (!DbgNode)
+ if (!get())
return;
-
- StringRef Res = getName();
- if (!Res.empty())
- OS << " [" << Res << "]";
-
- // TODO: Print context?
-
- OS << " [line " << getLineNumber() << ", size " << getSizeInBits()
- << ", align " << getAlignInBits() << ", offset " << getOffsetInBits();
- if (isBasicType())
- if (const char *Enc =
- dwarf::AttributeEncodingString(DIBasicType(DbgNode).getEncoding()))
- OS << ", enc " << Enc;
- OS << "]";
-
- if (isPrivate())
- OS << " [private]";
- else if (isProtected())
- OS << " [protected]";
- else if (isPublic())
- OS << " [public]";
-
- if (isArtificial())
- OS << " [artificial]";
-
- if (isForwardDecl())
- OS << " [decl]";
- else if (getTag() == dwarf::DW_TAG_structure_type ||
- getTag() == dwarf::DW_TAG_union_type ||
- getTag() == dwarf::DW_TAG_enumeration_type ||
- getTag() == dwarf::DW_TAG_class_type)
- OS << " [def]";
- if (isVector())
- OS << " [vector]";
- if (isStaticMember())
- OS << " [static]";
-
- if (isLValueReference())
- OS << " [reference]";
-
- if (isRValueReference())
- OS << " [rvalue reference]";
-}
-
-void DIDerivedType::printInternal(raw_ostream &OS) const {
- DIType::printInternal(OS);
- OS << " [from " << getTypeDerivedFrom().getName() << ']';
-}
-
-void DICompositeType::printInternal(raw_ostream &OS) const {
- DIType::printInternal(OS);
- DIArray A = getElements();
- OS << " [" << A.getNumElements() << " elements]";
-}
-
-void DINameSpace::printInternal(raw_ostream &OS) const {
- StringRef Name = getName();
- if (!Name.empty())
- OS << " [" << Name << ']';
-
- OS << " [line " << getLineNumber() << ']';
-}
-
-void DISubprogram::printInternal(raw_ostream &OS) const {
- // TODO : Print context
- OS << " [line " << getLineNumber() << ']';
-
- if (isLocalToUnit())
- OS << " [local]";
-
- if (isDefinition())
- OS << " [def]";
-
- if (getScopeLineNumber() != getLineNumber())
- OS << " [scope " << getScopeLineNumber() << "]";
-
- if (isPrivate())
- OS << " [private]";
- else if (isProtected())
- OS << " [protected]";
- else if (isPublic())
- OS << " [public]";
-
- if (isLValueReference())
- OS << " [reference]";
-
- if (isRValueReference())
- OS << " [rvalue reference]";
-
- StringRef Res = getName();
- if (!Res.empty())
- OS << " [" << Res << ']';
-}
-
-void DIGlobalVariable::printInternal(raw_ostream &OS) const {
- StringRef Res = getName();
- if (!Res.empty())
- OS << " [" << Res << ']';
-
- OS << " [line " << getLineNumber() << ']';
-
- // TODO : Print context
-
- if (isLocalToUnit())
- OS << " [local]";
-
- if (isDefinition())
- OS << " [def]";
-}
-
-void DIVariable::printInternal(raw_ostream &OS) const {
- StringRef Res = getName();
- if (!Res.empty())
- OS << " [" << Res << ']';
-
- OS << " [line " << getLineNumber() << ']';
-}
-
-void DIExpression::printInternal(raw_ostream &OS) const {
- for (unsigned I = 0; I < getNumElements(); ++I) {
- uint64_t OpCode = getElement(I);
- OS << " [" << OperationEncodingString(OpCode);
- switch (OpCode) {
- case DW_OP_plus: {
- OS << " " << getElement(++I);
- break;
- }
- case DW_OP_piece: {
- unsigned Offset = getElement(++I);
- unsigned Size = getElement(++I);
- OS << " offset=" << Offset << ", size=" << Size;
- break;
- }
- default:
- // Else bail out early. This may be a line table entry.
- OS << "Unknown]";
- return;
- }
- OS << "]";
- }
-}
-
-void DIObjCProperty::printInternal(raw_ostream &OS) const {
- StringRef Name = getObjCPropertyName();
- if (!Name.empty())
- OS << " [" << Name << ']';
-
- OS << " [line " << getLineNumber() << ", properties " << getUnsignedField(6)
- << ']';
+ get()->print(OS);
}
static void printDebugLoc(DebugLoc DL, raw_ostream &CommentOS,
}
}
-template <> DIRef<DIScope>::DIRef(const Value *V) : Val(V) {
+template <> DIRef<DIDescriptor>::DIRef(const Metadata *V) : Val(V) {
+ assert(isDescriptorRef(V) &&
+ "DIDescriptorRef should be a MDString or MDNode");
+}
+template <> DIRef<DIScope>::DIRef(const Metadata *V) : Val(V) {
assert(isScopeRef(V) && "DIScopeRef should be a MDString or MDNode");
}
-template <> DIRef<DIType>::DIRef(const Value *V) : Val(V) {
+template <> DIRef<DIType>::DIRef(const Metadata *V) : Val(V) {
assert(isTypeRef(V) && "DITypeRef should be a MDString or MDNode");
}
+template <>
+DIDescriptorRef DIDescriptor::getFieldAs<DIDescriptorRef>(unsigned Elt) const {
+ return DIDescriptorRef(cast_or_null<Metadata>(getField(DbgNode, Elt)));
+}
template <>
DIScopeRef DIDescriptor::getFieldAs<DIScopeRef>(unsigned Elt) const {
- return DIScopeRef(getField(DbgNode, Elt));
+ return DIScopeRef(cast_or_null<Metadata>(getField(DbgNode, Elt)));
}
template <> DITypeRef DIDescriptor::getFieldAs<DITypeRef>(unsigned Elt) const {
- return DITypeRef(getField(DbgNode, Elt));
+ return DITypeRef(cast_or_null<Metadata>(getField(DbgNode, Elt)));
}
bool llvm::StripDebugInfo(Module &M) {
}
unsigned llvm::getDebugMetadataVersionFromModule(const Module &M) {
- Value *Val = M.getModuleFlag("Debug Info Version");
- if (!Val)
- return 0;
- return cast<ConstantInt>(Val)->getZExtValue();
+ if (auto *Val = mdconst::dyn_extract_or_null<ConstantInt>(
+ M.getModuleFlag("Debug Info Version")))
+ return Val->getZExtValue();
+ return 0;
}
llvm::DenseMap<const llvm::Function *, llvm::DISubprogram>
projects / oota-llvm.git / blobdiff