//
//===----------------------------------------------------------------------===//
-#include "llvm/DebugInfo.h"
+#include "llvm/IR/DebugInfo.h"
+#include "LLVMContextImpl.h"
#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"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Intrinsics.h"
-#include "LLVMContextImpl.h"
#include "llvm/IR/Module.h"
+#include "llvm/IR/ValueHandle.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Dwarf.h"
-#include "llvm/Support/ValueHandle.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
using namespace llvm::dwarf;
// 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() ||
DILexicalBlockFile(DbgNode).Verify() ||
DISubrange(DbgNode).Verify() || DIEnumerator(DbgNode).Verify() ||
DIObjCProperty(DbgNode).Verify() ||
- DIUnspecifiedParameter(DbgNode).Verify() ||
DITemplateTypeParameter(DbgNode).Verify() ||
DITemplateValueParameter(DbgNode).Verify() ||
DIImportedEntity(DbgNode).Verify());
}
-static Value *getField(const MDNode *DbgNode, unsigned Elt) {
- if (DbgNode == 0 || Elt >= DbgNode->getNumOperands())
- return 0;
+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 == 0)
- 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 == 0)
- 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 == 0)
- return 0;
-
- if (Elt < DbgNode->getNumOperands())
- return dyn_cast_or_null<GlobalVariable>(DbgNode->getOperand(Elt));
- return 0;
+ return dyn_cast_or_null<GlobalVariable>(getConstantField(Elt));
}
Constant *DIDescriptor::getConstantField(unsigned Elt) const {
- if (DbgNode == 0)
- return 0;
+ if (!DbgNode)
+ return nullptr;
if (Elt < DbgNode->getNumOperands())
- return dyn_cast_or_null<Constant>(DbgNode->getOperand(Elt));
- return 0;
+ if (auto *C =
+ dyn_cast_or_null<ConstantAsMetadata>(DbgNode->getOperand(Elt)))
+ return C->getValue();
+ return nullptr;
}
Function *DIDescriptor::getFunctionField(unsigned Elt) const {
- if (DbgNode == 0)
- return 0;
-
- if (Elt < DbgNode->getNumOperands())
- return dyn_cast_or_null<Function>(DbgNode->getOperand(Elt));
- return 0;
-}
-
-void DIDescriptor::replaceFunctionField(unsigned Elt, Function *F) {
- if (DbgNode == 0)
- return;
-
- if (Elt < DbgNode->getNumOperands()) {
- MDNode *Node = const_cast<MDNode *>(DbgNode);
- Node->replaceOperandWith(Elt, F);
- }
-}
-
-unsigned DIVariable::getNumAddrElements() const {
- return DbgNode->getNumOperands() - 8;
-}
-
-/// getInlinedAt - If this variable is inlined then return inline location.
-MDNode *DIVariable::getInlinedAt() const { return getNodeField(DbgNode, 7); }
-
-//===----------------------------------------------------------------------===//
-// Predicates
-//===----------------------------------------------------------------------===//
-
-/// isBasicType - Return true if the specified tag is legal for
-/// DIBasicType.
-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;
- }
-}
-
-/// isDerivedType - Return true if the specified tag is legal for DIDerivedType.
-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();
- }
-}
-
-/// isCompositeType - Return true if the specified tag is legal for
-/// DICompositeType.
-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;
- }
+ return dyn_cast_or_null<Function>(getConstantField(Elt));
}
-/// isVariable - Return true if the specified tag is legal for DIVariable.
-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;
- }
-}
-
-/// isType - Return true if the specified tag is legal for DIType.
-bool DIDescriptor::isType() const {
- return isBasicType() || isCompositeType() || isDerivedType();
-}
-
-/// isSubprogram - Return true if the specified tag is legal for
-/// DISubprogram.
-bool DIDescriptor::isSubprogram() const {
- return DbgNode && getTag() == dwarf::DW_TAG_subprogram;
-}
-
-/// isGlobalVariable - Return true if the specified tag is legal for
-/// DIGlobalVariable.
-bool DIDescriptor::isGlobalVariable() const {
- return DbgNode && (getTag() == dwarf::DW_TAG_variable ||
- getTag() == dwarf::DW_TAG_constant);
-}
-
-/// isUnspecifiedParmeter - Return true if the specified tag is
-/// DW_TAG_unspecified_parameters.
-bool DIDescriptor::isUnspecifiedParameter() const {
- return DbgNode && getTag() == dwarf::DW_TAG_unspecified_parameters;
-}
-
-/// isScope - Return true if the specified tag is one of the scope
-/// related tag.
-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;
+/// \brief Return the size reported by the variable's type.
+unsigned DIVariable::getSizeInBits(const DITypeIdentifierMap &Map) {
+ DIType Ty = getType().resolve(Map);
+ // Follow derived types until we reach a type that
+ // reports back a size.
+ while (Ty.isDerivedType() && !Ty.getSizeInBits()) {
+ DIDerivedType DT(&*Ty);
+ Ty = DT.getTypeDerivedFrom().resolve(Map);
}
- return isType();
+ assert(Ty.getSizeInBits() && "type with size 0");
+ return Ty.getSizeInBits();
}
-/// isTemplateTypeParameter - Return true if the specified tag is
-/// DW_TAG_template_type_parameter.
-bool DIDescriptor::isTemplateTypeParameter() const {
- return DbgNode && getTag() == dwarf::DW_TAG_template_type_parameter;
+bool DIExpression::isBitPiece() const {
+ unsigned N = getNumElements();
+ return N >=3 && getElement(N-3) == dwarf::DW_OP_bit_piece;
}
-/// isTemplateValueParameter - Return true if the specified tag is
-/// DW_TAG_template_value_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);
+uint64_t DIExpression::getBitPieceOffset() const {
+ assert(isBitPiece() && "not a piece");
+ return getElement(getNumElements()-2);
}
-/// isCompileUnit - Return true if the specified tag is DW_TAG_compile_unit.
-bool DIDescriptor::isCompileUnit() const {
- return DbgNode && getTag() == dwarf::DW_TAG_compile_unit;
+uint64_t DIExpression::getBitPieceSize() const {
+ assert(isBitPiece() && "not a piece");
+ return getElement(getNumElements()-1);
}
-/// isFile - Return true if the specified tag is DW_TAG_file_type.
-bool DIDescriptor::isFile() const {
- return DbgNode && getTag() == dwarf::DW_TAG_file_type;
-}
-
-/// isNameSpace - Return true if the specified tag is DW_TAG_namespace.
-bool DIDescriptor::isNameSpace() const {
- return DbgNode && getTag() == dwarf::DW_TAG_namespace;
-}
-
-/// isLexicalBlockFile - Return true if the specified descriptor is a
-/// lexical block with an extra file.
-bool DIDescriptor::isLexicalBlockFile() const {
- return DbgNode && getTag() == dwarf::DW_TAG_lexical_block &&
- (DbgNode->getNumOperands() == 3);
-}
-
-/// isLexicalBlock - Return true if the specified tag is DW_TAG_lexical_block.
-bool DIDescriptor::isLexicalBlock() const {
- return DbgNode && getTag() == dwarf::DW_TAG_lexical_block &&
- (DbgNode->getNumOperands() > 3);
-}
-
-/// isSubrange - Return true if the specified tag is DW_TAG_subrange_type.
-bool DIDescriptor::isSubrange() const {
- return DbgNode && getTag() == dwarf::DW_TAG_subrange_type;
-}
-
-/// isEnumerator - Return true if the specified tag is DW_TAG_enumerator.
-bool DIDescriptor::isEnumerator() const {
- return DbgNode && getTag() == dwarf::DW_TAG_enumerator;
-}
-
-/// isObjCProperty - Return true if the specified tag is DW_TAG_APPLE_property.
-bool DIDescriptor::isObjCProperty() const {
- return DbgNode && getTag() == dwarf::DW_TAG_APPLE_property;
-}
-
-/// \brief Return true if the specified tag is DW_TAG_imported_module or
-/// DW_TAG_imported_declaration.
-bool DIDescriptor::isImportedEntity() const {
- return DbgNode && (getTag() == dwarf::DW_TAG_imported_module ||
- getTag() == dwarf::DW_TAG_imported_declaration);
+DIExpression::iterator DIExpression::Operand::getNext() const {
+ iterator it(I);
+ return ++it;
}
//===----------------------------------------------------------------------===//
// Simple Descriptor Constructors and other Methods
//===----------------------------------------------------------------------===//
-unsigned DIArray::getNumElements() const {
- if (!DbgNode)
- return 0;
- return DbgNode->getNumOperands();
-}
-
-/// replaceAllUsesWith - Replace all uses of the MDNode used by this
-/// type with the one in the passed descriptor.
-void DIType::replaceAllUsesWith(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.
- if (DbgNode != D) {
- 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);
+ if (Temp.get() == D.get()) {
+ DbgNode = MDNode::replaceWithUniqued(std::move(Temp));
+ return;
}
-}
-/// replaceAllUsesWith - Replace all uses of the MDNode used by this
-/// type with the one in D.
-void DIType::replaceAllUsesWith(MDNode *D) {
+ Temp->replaceAllUsesWith(D.get());
+ DbgNode = D.get();
+}
+void DIDescriptor::replaceAllUsesWith(MDNode *D) {
assert(DbgNode && "Trying to replace an unverified type!");
-
- // 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.
- if (DbgNode != D) {
- 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 != D && "This replacement should always happen");
+ assert(DbgNode->isTemporary() && "Expected temporary node");
+ TempMDNode Node(get());
+ Node->replaceAllUsesWith(D);
}
-/// Verify - Verify that a compile unit is well formed.
bool DICompileUnit::Verify() const {
if (!isCompileUnit())
return false;
// Don't bother verifying the compilation directory or producer string
// as those could be empty.
- if (getFilename().empty())
- return false;
-
- return DbgNode->getNumOperands() == 14;
-}
-
-/// Verify - Verify that an ObjC property is well formed.
-bool DIObjCProperty::Verify() const {
- if (!isObjCProperty())
- return false;
-
- // Don't worry about the rest of the strings for now.
- return DbgNode->getNumOperands() == 8;
-}
-
-/// 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();
}
-/// 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);
-}
-
-/// 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());
-}
+bool DIObjCProperty::Verify() const { return isObjCProperty(); }
-/// Check if a field at position Elt of a MDNode can be a reference to a type.
-static bool fieldIsTypeRef(const MDNode *DbgNode, unsigned Elt) {
- Value *Fld = getField(DbgNode, Elt);
- return isTypeRef(Fld);
+/// \brief Check if a value can be a reference to a type.
+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);
}
-/// Check if a value can be a ScopeRef.
-static bool isScopeRef(const Value *Val) {
- return !Val ||
- (isa<MDString>(Val) && !cast<MDString>(Val)->getString().empty()) ||
- (isa<MDNode>(Val) && DIScope(cast<MDNode>(Val)).isScope());
+/// \brief Check if a value can be a ScopeRef.
+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);
}
-/// 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
-/// Verify - Verify that a type descriptor is well formed.
bool DIType::Verify() const {
- if (!isType())
+ auto *N = dyn_cast_or_null<MDType>(DbgNode);
+ if (!N)
return false;
- // Make sure Context @ field 2 is MDNode.
- if (!fieldIsScopeRef(DbgNode, 2))
+ if (!isScopeRef(N->getScope()))
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())
- 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;
}
-/// Verify - Verify that a basic type descriptor is well formed.
bool DIBasicType::Verify() const {
- return isBasicType() && DbgNode->getNumOperands() == 10;
+ return dyn_cast_or_null<MDBasicType>(DbgNode);
}
-/// Verify - Verify that a derived type descriptor is well formed.
bool DIDerivedType::Verify() const {
- // Make sure DerivedFrom @ field 9 is TypeRef.
- if (!fieldIsTypeRef(DbgNode, 9))
+ 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 10 is a TypeRef.
- if (!fieldIsTypeRef(DbgNode, 10))
+ if (getTag() == dwarf::DW_TAG_ptr_to_member_type) {
+ auto *D = dyn_cast<MDDerivedType>(N);
+ if (!D)
return false;
-
- return isDerivedType() && DbgNode->getNumOperands() >= 10 &&
- DbgNode->getNumOperands() <= 14;
+ if (!isTypeRef(D->getExtraData()))
+ return false;
+ }
+ return isTypeRef(N->getBaseType());
}
-/// Verify - Verify that a composite type descriptor is well formed.
bool DICompositeType::Verify() const {
- if (!isCompositeType())
- return false;
-
- // Make sure DerivedFrom @ field 9 and ContainingType @ field 12 are TypeRef.
- if (!fieldIsTypeRef(DbgNode, 9))
- return false;
- if (!fieldIsTypeRef(DbgNode, 12))
- return false;
-
- // Make sure the type identifier at field 14 is MDString, it can be null.
- if (!fieldIsMDString(DbgNode, 14))
- return false;
-
- // A subroutine type can't be both & and &&.
- if (isLValueReference() && isRValueReference())
- return false;
-
- return DbgNode->getNumOperands() == 15;
+ auto *N = dyn_cast_or_null<MDCompositeTypeBase>(DbgNode);
+ return N && isTypeRef(N->getBaseType()) && isTypeRef(N->getVTableHolder()) &&
+ !(isLValueReference() && isRValueReference());
}
-/// Verify - Verify that a subprogram descriptor is well formed.
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 7 is a MDNode.
- if (!fieldIsScopeRef(DbgNode, 2))
- return false;
- if (!fieldIsMDNode(DbgNode, 7))
+ if (!isScopeRef(N->getScope()))
return false;
- // Containing type @ field 12.
- if (!fieldIsTypeRef(DbgNode, 12))
+
+ 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;
- return DbgNode->getNumOperands() == 20;
+ // 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()) {
+ for (auto &BB : *F) {
+ for (auto &I : BB) {
+ DebugLoc DL = I.getDebugLoc();
+ if (DL.isUnknown())
+ continue;
+
+ MDNode *Scope = nullptr;
+ MDNode *IA = nullptr;
+ // walk the inlined-at scopes
+ while ((IA = DL.getInlinedAt()))
+ DL = DebugLoc::getFromDILocation(IA);
+ 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();
+ if (!Scope)
+ return false;
+ }
+ if (!DISubprogram(Scope).describes(F))
+ return false;
+ }
+ }
+ }
+
+ return true;
}
-/// Verify - Verify that a global variable descriptor is well formed.
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 2 and type @ field 8 are MDNodes.
- if (!fieldIsMDNode(DbgNode, 2))
- return false;
- if (!fieldIsMDNode(DbgNode, 8))
+ if (!N)
return false;
- // Make sure StaticDataMemberDeclaration @ field 12 is MDNode.
- if (!fieldIsMDNode(DbgNode, 12))
+
+ if (N->getDisplayName().empty())
return false;
- return DbgNode->getNumOperands() == 13;
+ 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());
}
-/// Verify - Verify that a variable descriptor is well formed.
bool DIVariable::Verify() const {
- if (!isVariable())
- return false;
+ auto *N = dyn_cast_or_null<MDLocalVariable>(DbgNode);
- // Make sure context @ field 1 and type @ field 5 are MDNodes.
- if (!fieldIsMDNode(DbgNode, 1))
- return false;
- if (!fieldIsMDNode(DbgNode, 5))
+ if (!N)
return false;
- return DbgNode->getNumOperands() >= 8;
-}
-/// Verify - Verify that a location descriptor is well formed.
-bool DILocation::Verify() const {
- if (!DbgNode)
- return false;
+ if (auto *Op = N->getScope())
+ if (!isa<MDNode>(Op))
+ return false;
- return DbgNode->getNumOperands() == 4;
+ return isTypeRef(N->getType());
}
-/// Verify - Verify that a namespace descriptor is well formed.
-bool DINameSpace::Verify() const {
- if (!isNameSpace())
- return false;
- return DbgNode->getNumOperands() == 5;
+bool DILocation::Verify() const {
+ return dyn_cast_or_null<MDLocation>(DbgNode);
}
-
-/// \brief Retrieve the MDNode for the directory/file pair.
-MDNode *DIFile::getFileNode() const { return getNodeField(DbgNode, 1); }
-
-/// \brief Verify that the file descriptor is well formed.
-bool DIFile::Verify() const {
- return isFile() && DbgNode->getNumOperands() == 2;
+bool DINameSpace::Verify() const {
+ return dyn_cast_or_null<MDNamespace>(DbgNode);
}
-
-/// \brief Verify that the enumerator descriptor is well formed.
+bool DIFile::Verify() const { return dyn_cast_or_null<MDFile>(DbgNode); }
bool DIEnumerator::Verify() const {
- return isEnumerator() && DbgNode->getNumOperands() == 3;
+ return dyn_cast_or_null<MDEnumerator>(DbgNode);
}
-
-/// \brief Verify that the subrange descriptor is well formed.
bool DISubrange::Verify() const {
- return isSubrange() && DbgNode->getNumOperands() == 3;
+ return dyn_cast_or_null<MDSubrange>(DbgNode);
}
-
-/// \brief Verify that the lexical block descriptor is well formed.
bool DILexicalBlock::Verify() const {
- return isLexicalBlock() && DbgNode->getNumOperands() == 7;
+ return dyn_cast_or_null<MDLexicalBlock>(DbgNode);
}
-
-/// \brief Verify that the file-scoped lexical block descriptor is well formed.
bool DILexicalBlockFile::Verify() const {
- return isLexicalBlockFile() && DbgNode->getNumOperands() == 3;
+ return dyn_cast_or_null<MDLexicalBlockFile>(DbgNode);
}
-
-/// \brief Verify that an unspecified parameter descriptor is well formed.
-bool DIUnspecifiedParameter::Verify() const {
- return isUnspecifiedParameter() && DbgNode->getNumOperands() == 1;
-}
-
-/// \brief Verify that the template type parameter descriptor is well formed.
bool DITemplateTypeParameter::Verify() const {
- return isTemplateTypeParameter() && DbgNode->getNumOperands() == 7;
+ return dyn_cast_or_null<MDTemplateTypeParameter>(DbgNode);
}
-
-/// \brief Verify that the template value parameter descriptor is well formed.
bool DITemplateValueParameter::Verify() const {
- return isTemplateValueParameter() && DbgNode->getNumOperands() == 8;
+ return dyn_cast_or_null<MDTemplateValueParameter>(DbgNode);
}
-
-/// \brief Verify that the imported module descriptor is well formed.
bool DIImportedEntity::Verify() const {
- return isImportedEntity() &&
- (DbgNode->getNumOperands() == 4 || DbgNode->getNumOperands() == 5);
-}
-
-/// getObjCProperty - Return property node, if this ivar is associated with one.
-MDNode *DIDerivedType::getObjCProperty() const {
- return getNodeField(DbgNode, 10);
-}
-
-MDString *DICompositeType::getIdentifier() const {
- return cast_or_null<MDString>(getField(DbgNode, 14));
+ return dyn_cast_or_null<MDImportedEntity>(DbgNode);
}
-#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
-
-/// \brief Set the array of member DITypes.
-void DICompositeType::setTypeArray(DIArray Elements, DIArray TParams) {
- assert((!TParams || DbgNode->getNumOperands() == 15) &&
- "If you're setting the template parameters this should include a slot "
- "for that!");
- 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(10)))
- VerifySubsetOf(El, Elements);
-#endif
- N->replaceOperandWith(10, Elements);
- }
+void DICompositeType::setArraysHelper(MDNode *Elements, MDNode *TParams) {
+ TypedTrackingMDRef<MDCompositeTypeBase> N(get());
+ if (Elements)
+ N->replaceElements(cast<MDTuple>(Elements));
if (TParams)
- N->replaceOperandWith(13, TParams);
+ N->replaceTemplateParams(cast<MDTuple>(TParams));
DbgNode = N;
}
-/// Generate a reference to this DIType. Uses the type identifier instead
-/// of the actual MDNode if possible, to help type uniquing.
DIScopeRef DIScope::getRef() const {
if (!isCompositeType())
return DIScopeRef(*this);
return DIScopeRef(DTy.getIdentifier());
}
-/// \brief Set the containing type.
void DICompositeType::setContainingType(DICompositeType ContainingType) {
- TrackingVH<MDNode> N(*this);
- N->replaceOperandWith(12, ContainingType.getRef());
+ TypedTrackingMDRef<MDCompositeTypeBase> N(get());
+ N->replaceVTableHolder(ContainingType.getRef());
DbgNode = N;
}
-/// isInlinedFnArgument - Return true if this variable provides debugging
-/// information for an inlined function arguments.
bool DIVariable::isInlinedFnArgument(const Function *CurFn) {
assert(CurFn && "Invalid function");
if (!getContext().isSubprogram())
return !DISubprogram(getContext()).describes(CurFn);
}
-/// describes - Return true if this subprogram provides debugging
-/// information for the function F.
+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;
}
-unsigned DISubprogram::isOptimized() const {
- assert(DbgNode && "Invalid subprogram descriptor!");
- if (DbgNode->getNumOperands() == 15)
- return getUnsignedField(14);
- return 0;
-}
-
-MDNode *DISubprogram::getVariablesNodes() const {
- return getNodeField(DbgNode, 18);
+GlobalVariable *DIGlobalVariable::getGlobal() const {
+ return dyn_cast_or_null<GlobalVariable>(getConstant());
}
-DIArray DISubprogram::getVariables() const {
- return DIArray(getNodeField(DbgNode, 18));
-}
-
-Value *DITemplateValueParameter::getValue() const {
- return getField(DbgNode, 4);
-}
-
-// If the current node has a parent scope then return that,
-// else return an empty scope.
DIScopeRef DIScope::getContext() const {
if (isType())
return DIScopeRef(DINameSpace(DbgNode).getContext());
assert((isFile() || isCompileUnit()) && "Unhandled type of scope.");
- return DIScopeRef(NULL);
+ return DIScopeRef(nullptr);
}
-// If the scope node has a name, return that, else return an empty string.
StringRef DIScope::getName() const {
if (isType())
return DIType(DbgNode).getName();
}
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() < 13)
- return DIArray();
-
- return DIArray(getNodeField(DbgNode, 7));
-}
-
-DIArray DICompileUnit::getRetainedTypes() const {
- if (!DbgNode || DbgNode->getNumOperands() < 13)
- return DIArray();
-
- return DIArray(getNodeField(DbgNode, 8));
-}
-
-DIArray DICompileUnit::getSubprograms() const {
- if (!DbgNode || DbgNode->getNumOperands() < 13)
- return DIArray();
-
- return DIArray(getNodeField(DbgNode, 9));
+ if (auto *N = get())
+ return ::getStringField(dyn_cast_or_null<MDNode>(N->getFile()), 1);
+ return "";
}
-DIArray DICompileUnit::getGlobalVariables() const {
- if (!DbgNode || DbgNode->getNumOperands() < 13)
- return DIArray();
-
- return DIArray(getNodeField(DbgNode, 10));
+void DICompileUnit::replaceSubprograms(DIArray Subprograms) {
+ assert(Verify() && "Expected compile unit");
+ get()->replaceSubprograms(cast_or_null<MDTuple>(Subprograms.get()));
}
-DIArray DICompileUnit::getImportedEntities() const {
- if (!DbgNode || DbgNode->getNumOperands() < 13)
- return DIArray();
-
- return DIArray(getNodeField(DbgNode, 11));
+void DICompileUnit::replaceGlobalVariables(DIArray GlobalVariables) {
+ assert(Verify() && "Expected compile unit");
+ get()->replaceGlobalVariables(cast_or_null<MDTuple>(GlobalVariables.get()));
}
-/// copyWithNewScope - Return a copy of this location, replacing the
-/// current scope with the given one.
DILocation DILocation::copyWithNewScope(LLVMContext &Ctx,
- DILexicalBlock NewScope) {
- SmallVector<Value *, 10> Elts;
+ DILexicalBlockFile NewScope) {
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()));
}
-/// computeNewDiscriminator - Generate a new discriminator value for this
-/// file and line location.
unsigned DILocation::computeNewDiscriminator(LLVMContext &Ctx) {
std::pair<const char *, unsigned> Key(getFilename().data(), getLineNumber());
return ++Ctx.pImpl->DiscriminatorTable[Key];
}
-/// fixupSubprogramName - Replace contains special characters used
-/// in a typical Objective-C names with '.' in a given string.
-static void fixupSubprogramName(DISubprogram Fn, SmallVectorImpl<char> &Out) {
- StringRef FName =
- Fn.getFunction() ? Fn.getFunction()->getName() : Fn.getName();
- FName = Function::getRealLinkageName(FName);
-
- StringRef Prefix("llvm.dbg.lv.");
- Out.reserve(FName.size() + Prefix.size());
- Out.append(Prefix.begin(), Prefix.end());
-
- bool isObjCLike = false;
- for (size_t i = 0, e = FName.size(); i < e; ++i) {
- char C = FName[i];
- if (C == '[')
- isObjCLike = true;
-
- if (isObjCLike && (C == '[' || C == ']' || C == ' ' || C == ':' ||
- C == '+' || C == '(' || C == ')'))
- Out.push_back('.');
- else
- Out.push_back(C);
- }
-}
-
-/// getFnSpecificMDNode - Return a NameMDNode, if available, that is
-/// suitable to hold function specific information.
-NamedMDNode *llvm::getFnSpecificMDNode(const Module &M, DISubprogram Fn) {
- SmallString<32> Name;
- fixupSubprogramName(Fn, Name);
- return M.getNamedMetadata(Name.str());
-}
-
-/// getOrInsertFnSpecificMDNode - Return a NameMDNode that is suitable
-/// to hold function specific information.
-NamedMDNode *llvm::getOrInsertFnSpecificMDNode(Module &M, DISubprogram Fn) {
- SmallString<32> Name;
- fixupSubprogramName(Fn, Name);
- return M.getOrInsertNamedMetadata(Name.str());
-}
-
-/// createInlinedVariable - Create a new inlined variable based on current
-/// variable.
-/// @param DV Current Variable.
-/// @param InlinedScope Location at current variable is inlined.
DIVariable llvm::createInlinedVariable(MDNode *DV, MDNode *InlinedScope,
LLVMContext &VMContext) {
- SmallVector<Value *, 16> Elts;
- // Insert inlined scope as 7th element.
- for (unsigned i = 0, e = DV->getNumOperands(); i != e; ++i)
- i == 7 ? Elts.push_back(InlinedScope) : Elts.push_back(DV->getOperand(i));
- return DIVariable(MDNode::get(VMContext, Elts));
+ assert(DIVariable(DV).Verify() && "Expected a DIVariable");
+ return cast<MDLocalVariable>(DV)
+ ->withInline(cast_or_null<MDLocation>(InlinedScope));
}
-/// cleanseInlinedVariable - Remove inlined scope from the variable.
DIVariable llvm::cleanseInlinedVariable(MDNode *DV, LLVMContext &VMContext) {
- SmallVector<Value *, 16> Elts;
- // Insert inlined scope as 7th element.
- for (unsigned i = 0, e = DV->getNumOperands(); i != e; ++i)
- i == 7 ? Elts.push_back(Constant::getNullValue(Type::getInt32Ty(VMContext)))
- : Elts.push_back(DV->getOperand(i));
- return DIVariable(MDNode::get(VMContext, Elts));
+ assert(DIVariable(DV).Verify() && "Expected a DIVariable");
+ return cast<MDLocalVariable>(DV)->withoutInline();
}
-/// getDISubprogram - Find subprogram that is enclosing this scope.
DISubprogram llvm::getDISubprogram(const MDNode *Scope) {
DIDescriptor D(Scope);
if (D.isSubprogram())
return DISubprogram();
}
-/// getDICompositeType - Find underlying composite type.
+DISubprogram llvm::getDISubprogram(const Function *F) {
+ // We look for the first instr that has a debug annotation leading back to F.
+ for (auto &BB : *F) {
+ auto Inst = std::find_if(BB.begin(), BB.end(), [](const Instruction &Inst) {
+ return !Inst.getDebugLoc().isUnknown();
+ });
+ if (Inst == BB.end())
+ continue;
+ DebugLoc DLoc = Inst->getDebugLoc();
+ const MDNode *Scope = DLoc.getScopeNode();
+ DISubprogram Subprogram = getDISubprogram(Scope);
+ return Subprogram.describes(F) ? Subprogram : DISubprogram();
+ }
+
+ return DISubprogram();
+}
+
DICompositeType llvm::getDICompositeType(DIType T) {
if (T.isCompositeType())
return DICompositeType(T);
return DICompositeType();
}
-/// Update DITypeIdentifierMap by going through retained types of each CU.
DITypeIdentifierMap
llvm::generateDITypeIdentifierMap(const NamedMDNode *CU_Nodes) {
DITypeIdentifierMap Map;
}
}
-/// processModule - Process entire module and collect debug info.
void DebugInfoFinder::processModule(const Module &M) {
InitializeTypeMap(M);
if (NamedMDNode *CU_Nodes = M.getNamedMetadata("llvm.dbg.cu")) {
DIGlobalVariable DIG(GVs.getElement(i));
if (addGlobalVariable(DIG)) {
processScope(DIG.getContext());
- processType(DIG.getType());
+ processType(DIG.getType().resolve(TypeIdentifierMap));
}
}
DIArray SPs = CU.getSubprograms();
DIArray Imports = CU.getImportedEntities();
for (unsigned i = 0, e = Imports.getNumElements(); i != e; ++i) {
DIImportedEntity Import = DIImportedEntity(Imports.getElement(i));
- DIDescriptor Entity = Import.getEntity();
+ if (!Import)
+ continue;
+ DIDescriptor Entity = Import.getEntity().resolve(TypeIdentifierMap);
if (Entity.isType())
processType(DIType(Entity));
else if (Entity.isSubprogram())
}
}
-/// processLocation - Process DILocation.
void DebugInfoFinder::processLocation(const Module &M, DILocation Loc) {
if (!Loc)
return;
processLocation(M, Loc.getOrigLocation());
}
-/// processType - Process DIType.
void DebugInfoFinder::processType(DIType DT) {
if (!addType(DT))
return;
if (DT.isCompositeType()) {
DICompositeType DCT(DT);
processType(DCT.getTypeDerivedFrom().resolve(TypeIdentifierMap));
- DIArray DA = DCT.getTypeArray();
+ if (DT.isSubroutineType()) {
+ DITypeArray DTA = DISubroutineType(DT).getTypeArray();
+ for (unsigned i = 0, e = DTA.getNumElements(); i != e; ++i)
+ processType(DTA.getElement(i).resolve(TypeIdentifierMap));
+ return;
+ }
+ DIArray DA = DCT.getElements();
for (unsigned i = 0, e = DA.getNumElements(); i != e; ++i) {
DIDescriptor D = DA.getElement(i);
if (D.isType())
}
}
-/// processLexicalBlock
-void DebugInfoFinder::processLexicalBlock(DILexicalBlock LB) {
- DIScope Context = LB.getContext();
- if (Context.isLexicalBlock())
- return processLexicalBlock(DILexicalBlock(Context));
- else if (Context.isLexicalBlockFile()) {
- DILexicalBlockFile DBF = DILexicalBlockFile(Context);
- return processLexicalBlock(DILexicalBlock(DBF.getScope()));
- } else
- return processSubprogram(DISubprogram(Context));
-}
-
-/// processSubprogram - Process DISubprogram.
void DebugInfoFinder::processSubprogram(DISubprogram SP) {
if (!addSubprogram(SP))
return;
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));
}
}
}
-/// processDeclare - Process DbgDeclareInst.
void DebugInfoFinder::processDeclare(const Module &M,
const DbgDeclareInst *DDI) {
MDNode *N = dyn_cast<MDNode>(DDI->getVariable());
if (!DV.isVariable())
return;
- if (!NodesSeen.insert(DV))
+ if (!NodesSeen.insert(DV).second)
return;
processScope(DIVariable(N).getContext());
- processType(DIVariable(N).getType());
+ processType(DIVariable(N).getType().resolve(TypeIdentifierMap));
}
void DebugInfoFinder::processValue(const Module &M, const DbgValueInst *DVI) {
if (!DV.isVariable())
return;
- if (!NodesSeen.insert(DV))
+ if (!NodesSeen.insert(DV).second)
return;
processScope(DIVariable(N).getContext());
- processType(DIVariable(N).getType());
+ processType(DIVariable(N).getType().resolve(TypeIdentifierMap));
}
-/// addType - Add type into Tys.
bool DebugInfoFinder::addType(DIType DT) {
if (!DT)
return false;
- if (!NodesSeen.insert(DT))
+ if (!NodesSeen.insert(DT).second)
return false;
TYs.push_back(DT);
return true;
}
-/// addCompileUnit - Add compile unit into CUs.
bool DebugInfoFinder::addCompileUnit(DICompileUnit CU) {
if (!CU)
return false;
- if (!NodesSeen.insert(CU))
+ if (!NodesSeen.insert(CU).second)
return false;
CUs.push_back(CU);
return true;
}
-/// addGlobalVariable - Add global variable into GVs.
bool DebugInfoFinder::addGlobalVariable(DIGlobalVariable DIG) {
if (!DIG)
return false;
- if (!NodesSeen.insert(DIG))
+ if (!NodesSeen.insert(DIG).second)
return false;
GVs.push_back(DIG);
return true;
}
-// addSubprogram - Add subprgoram into SPs.
bool DebugInfoFinder::addSubprogram(DISubprogram SP) {
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;
// DIDescriptor: dump routines for all descriptors.
//===----------------------------------------------------------------------===//
-/// dump - Print descriptor to dbgs() with a newline.
void DIDescriptor::dump() const {
print(dbgs());
dbgs() << '\n';
}
-/// print - Print descriptor.
void DIDescriptor::print(raw_ostream &OS) const {
- if (!DbgNode)
+ if (!get())
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);
- }
-}
-
-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)
- 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]";
-
- 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 = getTypeArray();
- 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]";
-
- 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 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,
}
}
-/// Specialize constructor to make sure it has the correct type.
-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");
}
-/// Specialize getFieldAs to handle fields that are references to DIScopes.
+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)));
}
-/// Specialize getFieldAs to handle fields that are references to DITypes.
template <> DITypeRef DIDescriptor::getFieldAs<DITypeRef>(unsigned Elt) const {
- return DITypeRef(getField(DbgNode, Elt));
+ return DITypeRef(cast_or_null<Metadata>(getField(DbgNode, Elt)));
}
-/// Strip debug info in the module if it exists.
-/// To do this, we remove all calls to the debugger intrinsics and any named
-/// metadata for debugging. We also remove debug locations for instructions.
-/// Return true if module is modified.
bool llvm::StripDebugInfo(Module &M) {
-
bool Changed = false;
// Remove all of the calls to the debugger intrinsics, and remove them from
// the module.
if (Function *Declare = M.getFunction("llvm.dbg.declare")) {
while (!Declare->use_empty()) {
- CallInst *CI = cast<CallInst>(Declare->use_back());
+ CallInst *CI = cast<CallInst>(Declare->user_back());
CI->eraseFromParent();
}
Declare->eraseFromParent();
if (Function *DbgVal = M.getFunction("llvm.dbg.value")) {
while (!DbgVal->use_empty()) {
- CallInst *CI = cast<CallInst>(DbgVal->use_back());
+ CallInst *CI = cast<CallInst>(DbgVal->user_back());
CI->eraseFromParent();
}
DbgVal->eraseFromParent();
return Changed;
}
-/// Return Debug Info Metadata Version by checking module flags.
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>
+llvm::makeSubprogramMap(const Module &M) {
+ DenseMap<const Function *, DISubprogram> R;
+
+ NamedMDNode *CU_Nodes = M.getNamedMetadata("llvm.dbg.cu");
+ if (!CU_Nodes)
+ return R;
+
+ for (MDNode *N : CU_Nodes->operands()) {
+ DICompileUnit CUNode(N);
+ DIArray SPs = CUNode.getSubprograms();
+ for (unsigned i = 0, e = SPs.getNumElements(); i != e; ++i) {
+ DISubprogram SP(SPs.getElement(i));
+ if (Function *F = SP.getFunction())
+ R.insert(std::make_pair(F, SP));
+ }
+ }
+ return R;
}
projects / oota-llvm.git / blobdiff