#include "llvm/ADT/SmallString.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"
return DbgNode &&
(DIDerivedType(DbgNode).Verify() ||
DICompositeType(DbgNode).Verify() || DIBasicType(DbgNode).Verify() ||
- DITrivialType(DbgNode).Verify() ||
DIVariable(DbgNode).Verify() || DISubprogram(DbgNode).Verify() ||
DIGlobalVariable(DbgNode).Verify() || DIFile(DbgNode).Verify() ||
DICompileUnit(DbgNode).Verify() || DINameSpace(DbgNode).Verify() ||
DIObjCProperty(DbgNode).Verify() ||
DITemplateTypeParameter(DbgNode).Verify() ||
DITemplateValueParameter(DbgNode).Verify() ||
- DIImportedEntity(DbgNode).Verify());
+ DIImportedEntity(DbgNode).Verify() || DIExpression(DbgNode).Verify());
}
static Value *getField(const MDNode *DbgNode, unsigned Elt) {
}
}
-uint64_t DIVariable::getAddrElement(unsigned Idx) const {
- DIDescriptor ComplexExpr = getDescriptorField(8);
- if (Idx < ComplexExpr->getNumOperands())
- if (auto *CI = dyn_cast_or_null<ConstantInt>(ComplexExpr->getOperand(Idx)))
- return CI->getZExtValue();
+static unsigned DIVariableInlinedAtIndex = 4;
+MDNode *DIVariable::getInlinedAt() const {
+ return getNodeField(DbgNode, DIVariableInlinedAtIndex);
+}
- assert(false && "non-existing complex address element requested");
- return 0;
+/// \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);
+ }
+ assert(Ty.getSizeInBits() && "type with size 0");
+ 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::isVariablePiece() const {
+ return getNumElements() && getElement(0) == dwarf::DW_OP_piece;
+}
+
+uint64_t DIExpression::getPieceOffset() const {
+ assert(isVariablePiece());
+ return getElement(1);
}
-/// getInlinedAt - If this variable is inlined then return inline location.
-MDNode *DIVariable::getInlinedAt() const { return getNodeField(DbgNode, 7); }
+uint64_t DIExpression::getPieceSize() const {
+ assert(isVariablePiece());
+ return getElement(2);
+}
//===----------------------------------------------------------------------===//
// Predicates
//===----------------------------------------------------------------------===//
-bool DIDescriptor::isTrivialType() const {
- return DbgNode && getTag() == dwarf::DW_TAG_unspecified_parameters;
+bool DIDescriptor::isSubroutineType() const {
+ return isCompositeType() && getTag() == dwarf::DW_TAG_subroutine_type;
}
-/// isBasicType - Return true if the specified tag is legal for
-/// DIBasicType.
bool DIDescriptor::isBasicType() const {
if (!DbgNode)
return false;
}
}
-/// isDerivedType - Return true if the specified tag is legal for DIDerivedType.
bool DIDescriptor::isDerivedType() const {
if (!DbgNode)
return false;
}
}
-/// isCompositeType - Return true if the specified tag is legal for
-/// DICompositeType.
bool DIDescriptor::isCompositeType() const {
if (!DbgNode)
return false;
}
}
-/// isVariable - Return true if the specified tag is legal for DIVariable.
bool DIDescriptor::isVariable() const {
if (!DbgNode)
return false;
}
}
-/// isType - Return true if the specified tag is legal for DIType.
bool DIDescriptor::isType() const {
- return isBasicType() || isCompositeType() || isDerivedType() ||
- isTrivialType();
+ 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;
return isType();
}
-/// 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;
}
-/// 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);
}
-/// isCompileUnit - Return true if the specified tag is DW_TAG_compile_unit.
bool DIDescriptor::isCompileUnit() const {
return DbgNode && getTag() == dwarf::DW_TAG_compile_unit;
}
-/// 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);
+ DbgNode->getNumOperands() == 3 && getNumHeaderFields() == 2;
}
-/// isLexicalBlock - Return true if the specified tag is DW_TAG_lexical_block.
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);
+ DbgNode->getNumOperands() == 3 &&
+ (getNumHeaderFields() == 2 || getNumHeaderFields() == 4);
}
-/// 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);
}
+bool DIDescriptor::isExpression() const {
+ return DbgNode && (getTag() == dwarf::DW_TAG_expression);
+}
+
//===----------------------------------------------------------------------===//
// 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(LLVMContext &VMContext, DIDescriptor D) {
+void DIDescriptor::replaceAllUsesWith(LLVMContext &VMContext, DIDescriptor D) {
assert(DbgNode && "Trying to replace an unverified type!");
const Value *V = cast_or_null<Value>(DN);
Node->replaceAllUsesWith(const_cast<Value *>(V));
MDNode::deleteTemporary(Node);
- DbgNode = D;
+ DbgNode = DN;
}
-/// replaceAllUsesWith - Replace all uses of the MDNode used by this
-/// type with the one in D.
-void DIType::replaceAllUsesWith(MDNode *D) {
+void DIDescriptor::replaceAllUsesWith(MDNode *D) {
assert(DbgNode && "Trying to replace an unverified type!");
assert(DbgNode != D && "This replacement should always happen");
MDNode::deleteTemporary(Node);
}
-/// Verify - Verify that a compile unit is well formed.
bool DICompileUnit::Verify() const {
if (!isCompileUnit())
return false;
if (getFilename().empty())
return false;
- return DbgNode->getNumOperands() == 14;
+ return DbgNode->getNumOperands() == 7 && getNumHeaderFields() == 8;
}
-/// 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;
+ return DbgNode->getNumOperands() == 3 && getNumHeaderFields() == 6;
}
-/// Check if a field at position Elt of a MDNode is a MDNode.
+/// \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) {
return true;
}
-/// Check if a field at position Elt of a MDNode is a MDString.
+/// \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);
}
-/// Check if a value can be a reference to a type.
+/// \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());
}
-/// Check if a field at position Elt of a MDNode can be a reference to a type.
+/// \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);
}
-/// Check if a value can be a ScopeRef.
+/// \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()) ||
isa<MDNode>(Val);
}
-/// Check if a field at position Elt of a MDNode can be a ScopeRef.
+/// \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);
}
-/// Verify - Verify that a type descriptor is well formed.
bool DIType::Verify() const {
if (!isType())
return false;
// FIXME: Sink this into the various subclass verifies.
uint16_t Tag = getTag();
- if (!isBasicType() && !isTrivialType() && Tag != dwarf::DW_TAG_const_type &&
+ 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_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 (isTrivialType())
- return DITrivialType(DbgNode).Verify();
else if (isCompositeType())
return DICompositeType(DbgNode).Verify();
else if (isDerivedType())
return false;
}
-/// Verify - Verify that a basic type descriptor is well formed.
bool DIBasicType::Verify() const {
- return isBasicType() && DbgNode->getNumOperands() == 10;
+ return isBasicType() && DbgNode->getNumOperands() == 3 &&
+ getNumHeaderFields() == 8;
}
-bool DITrivialType::Verify() const {
- return isTrivialType() && DbgNode->getNumOperands() == 1;
-}
-
-/// 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))
+ // Make sure DerivedFrom @ field 3 is TypeRef.
+ if (!fieldIsTypeRef(DbgNode, 3))
return false;
if (getTag() == dwarf::DW_TAG_ptr_to_member_type)
- // Make sure ClassType @ field 10 is a TypeRef.
- if (!fieldIsTypeRef(DbgNode, 10))
+ // Make sure ClassType @ field 4 is a TypeRef.
+ if (!fieldIsTypeRef(DbgNode, 4))
return false;
- return isDerivedType() && DbgNode->getNumOperands() >= 10 &&
- DbgNode->getNumOperands() <= 14;
+ return isDerivedType() && DbgNode->getNumOperands() >= 4 &&
+ DbgNode->getNumOperands() <= 8 && getNumHeaderFields() >= 7 &&
+ getNumHeaderFields() <= 8;
}
-/// 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))
+ // Make sure DerivedFrom @ field 3 and ContainingType @ field 5 are TypeRef.
+ if (!fieldIsTypeRef(DbgNode, 3))
return false;
- if (!fieldIsTypeRef(DbgNode, 12))
+ if (!fieldIsTypeRef(DbgNode, 5))
return false;
- // Make sure the type identifier at field 14 is MDString, it can be null.
- if (!fieldIsMDString(DbgNode, 14))
+ // 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() == 15;
+ return DbgNode->getNumOperands() == 8 && getNumHeaderFields() == 8;
}
-/// Verify - Verify that a subprogram descriptor is well formed.
bool DISubprogram::Verify() const {
if (!isSubprogram())
return false;
- // Make sure context @ field 2 is a ScopeRef and type @ field 7 is a MDNode.
+ // Make sure context @ field 2 is a ScopeRef and type @ field 3 is a MDNode.
if (!fieldIsScopeRef(DbgNode, 2))
return false;
- if (!fieldIsMDNode(DbgNode, 7))
+ if (!fieldIsMDNode(DbgNode, 3))
return false;
- // Containing type @ field 12.
- if (!fieldIsTypeRef(DbgNode, 12))
+ // Containing type @ field 4.
+ if (!fieldIsTypeRef(DbgNode, 4))
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()) {
+ LLVMContext &Ctxt = F->getContext();
+ 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 (DL.getScopeAndInlinedAt(Scope, IA, F->getContext()), IA)
+ DL = DebugLoc::getFromDILocation(IA);
+ DL.getScopeAndInlinedAt(Scope, IA, Ctxt);
+ assert(!IA);
+ while (!DIDescriptor(Scope).isSubprogram()) {
+ DILexicalBlockFile D(Scope);
+ Scope = D.isLexicalBlockFile()
+ ? D.getScope()
+ : DebugLoc::getFromDILexicalBlock(Scope).getScope(Ctxt);
+ }
+ if (!DISubprogram(Scope).describes(F))
+ return false;
+ }
+ }
+ }
+ return DbgNode->getNumOperands() == 9 && getNumHeaderFields() == 12;
}
-/// Verify - Verify that a global variable descriptor is well formed.
bool DIGlobalVariable::Verify() const {
if (!isGlobalVariable())
return false;
if (getDisplayName().empty())
return false;
- // Make sure context @ field 2 is an MDNode.
- if (!fieldIsMDNode(DbgNode, 2))
+ // Make sure context @ field 1 is an MDNode.
+ if (!fieldIsMDNode(DbgNode, 1))
return false;
- // Make sure that type @ field 8 is a DITypeRef.
- if (!fieldIsTypeRef(DbgNode, 8))
+ // Make sure that type @ field 3 is a DITypeRef.
+ if (!fieldIsTypeRef(DbgNode, 3))
return false;
- // Make sure StaticDataMemberDeclaration @ field 12 is MDNode.
- if (!fieldIsMDNode(DbgNode, 12))
+ // Make sure StaticDataMemberDeclaration @ field 5 is MDNode.
+ if (!fieldIsMDNode(DbgNode, 5))
return false;
- return DbgNode->getNumOperands() == 13;
+ return DbgNode->getNumOperands() == 6 && getNumHeaderFields() == 7;
}
-/// Verify - Verify that a variable descriptor is well formed.
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 5 is a DITypeRef.
- if (!fieldIsTypeRef(DbgNode, 5))
+ // Make sure that type @ field 3 is a DITypeRef.
+ if (!fieldIsTypeRef(DbgNode, 3))
return false;
- // Variable without a complex expression.
- if (DbgNode->getNumOperands() == 8)
+ // Check the number of header fields, which is common between complex and
+ // simple variables.
+ if (getNumHeaderFields() != 4)
+ return false;
+
+ // Variable without an inline location.
+ if (DbgNode->getNumOperands() == 4)
return true;
- // Make sure the complex expression is an MDNode.
- return (DbgNode->getNumOperands() == 9 && fieldIsMDNode(DbgNode, 8));
+ // 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;
+
+ return isExpression() && DbgNode->getNumOperands() == 1;
}
-/// Verify - Verify that a location descriptor is well formed.
bool DILocation::Verify() const {
if (!DbgNode)
return false;
return DbgNode->getNumOperands() == 4;
}
-/// Verify - Verify that a namespace descriptor is well formed.
bool DINameSpace::Verify() const {
if (!isNameSpace())
return false;
- return DbgNode->getNumOperands() == 5;
+ return DbgNode->getNumOperands() == 3 && getNumHeaderFields() == 3;
}
-/// \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;
}
-/// \brief Verify that the enumerator descriptor is well formed.
bool DIEnumerator::Verify() const {
- return isEnumerator() && DbgNode->getNumOperands() == 3;
+ return isEnumerator() && DbgNode->getNumOperands() == 1 &&
+ getNumHeaderFields() == 3;
}
-/// \brief Verify that the subrange descriptor is well formed.
bool DISubrange::Verify() const {
- return isSubrange() && DbgNode->getNumOperands() == 3;
+ return isSubrange() && DbgNode->getNumOperands() == 1 &&
+ getNumHeaderFields() == 3;
}
-/// \brief Verify that the lexical block descriptor is well formed.
bool DILexicalBlock::Verify() const {
- return isLexicalBlock() && DbgNode->getNumOperands() == 7;
+ return isLexicalBlock() && DbgNode->getNumOperands() == 3 &&
+ getNumHeaderFields() == 4;
}
-/// \brief Verify that the file-scoped lexical block descriptor is well formed.
bool DILexicalBlockFile::Verify() const {
- return isLexicalBlockFile() && DbgNode->getNumOperands() == 3;
+ return isLexicalBlockFile() && DbgNode->getNumOperands() == 3 &&
+ getNumHeaderFields() == 2;
}
-/// \brief Verify that the template type parameter descriptor is well formed.
bool DITemplateTypeParameter::Verify() const {
- return isTemplateTypeParameter() && DbgNode->getNumOperands() == 7;
+ return isTemplateTypeParameter() && DbgNode->getNumOperands() == 4 &&
+ getNumHeaderFields() == 4;
}
-/// \brief Verify that the template value parameter descriptor is well formed.
bool DITemplateValueParameter::Verify() const {
- return isTemplateValueParameter() && DbgNode->getNumOperands() == 8;
+ return isTemplateValueParameter() && DbgNode->getNumOperands() == 5 &&
+ getNumHeaderFields() == 4;
}
-/// \brief Verify that the imported module descriptor is well formed.
bool DIImportedEntity::Verify() const {
- return isImportedEntity() &&
- (DbgNode->getNumOperands() == 4 || DbgNode->getNumOperands() == 5);
+ return isImportedEntity() && DbgNode->getNumOperands() == 3 &&
+ getNumHeaderFields() == 3;
}
-/// getObjCProperty - Return property node, if this ivar is associated with one.
MDNode *DIDerivedType::getObjCProperty() const {
- return getNodeField(DbgNode, 10);
+ return getNodeField(DbgNode, 4);
}
MDString *DICompositeType::getIdentifier() const {
- return cast_or_null<MDString>(getField(DbgNode, 14));
+ return cast_or_null<MDString>(getField(DbgNode, 7));
}
#ifndef NDEBUG
}
#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!");
+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(10)))
+ if (const MDNode *El = cast_or_null<MDNode>(N->getOperand(4)))
VerifySubsetOf(El, Elements);
#endif
- N->replaceOperandWith(10, Elements);
+ N->replaceOperandWith(4, Elements);
}
if (TParams)
- N->replaceOperandWith(13, TParams);
+ N->replaceOperandWith(6, 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());
+ N->replaceOperandWith(5, 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.
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);
+ return getNodeField(DbgNode, 8);
}
DIArray DISubprogram::getVariables() const {
- return DIArray(getNodeField(DbgNode, 18));
+ return DIArray(getNodeField(DbgNode, 8));
}
Value *DITemplateValueParameter::getValue() const {
- return getField(DbgNode, 4);
+ return getField(DbgNode, 3);
}
-// If the current node has a parent scope then return that,
-// else return an empty scope.
DIScopeRef DIScope::getContext() const {
if (isType())
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();
}
DIArray DICompileUnit::getEnumTypes() const {
- if (!DbgNode || DbgNode->getNumOperands() < 13)
+ if (!DbgNode || DbgNode->getNumOperands() < 7)
return DIArray();
- return DIArray(getNodeField(DbgNode, 7));
+ return DIArray(getNodeField(DbgNode, 2));
}
DIArray DICompileUnit::getRetainedTypes() const {
- if (!DbgNode || DbgNode->getNumOperands() < 13)
+ if (!DbgNode || DbgNode->getNumOperands() < 7)
return DIArray();
- return DIArray(getNodeField(DbgNode, 8));
+ return DIArray(getNodeField(DbgNode, 3));
}
DIArray DICompileUnit::getSubprograms() const {
- if (!DbgNode || DbgNode->getNumOperands() < 13)
+ if (!DbgNode || DbgNode->getNumOperands() < 7)
return DIArray();
- return DIArray(getNodeField(DbgNode, 9));
+ return DIArray(getNodeField(DbgNode, 4));
}
DIArray DICompileUnit::getGlobalVariables() const {
- if (!DbgNode || DbgNode->getNumOperands() < 13)
+ if (!DbgNode || DbgNode->getNumOperands() < 7)
return DIArray();
- return DIArray(getNodeField(DbgNode, 10));
+ return DIArray(getNodeField(DbgNode, 5));
}
DIArray DICompileUnit::getImportedEntities() const {
- if (!DbgNode || DbgNode->getNumOperands() < 13)
+ if (!DbgNode || DbgNode->getNumOperands() < 7)
return DIArray();
- return DIArray(getNodeField(DbgNode, 11));
+ return DIArray(getNodeField(DbgNode, 6));
+}
+
+void DICompileUnit::replaceSubprograms(DIArray Subprograms) {
+ assert(Verify() && "Expected compile unit");
+ if (Subprograms == getSubprograms())
+ return;
+
+ const_cast<MDNode *>(DbgNode)->replaceOperandWith(4, Subprograms);
+}
+
+void DICompileUnit::replaceGlobalVariables(DIArray GlobalVariables) {
+ assert(Verify() && "Expected compile unit");
+ if (GlobalVariables == getGlobalVariables())
+ return;
+
+ const_cast<MDNode *>(DbgNode)->replaceOperandWith(5, GlobalVariables);
}
-/// copyWithNewScope - Return a copy of this location, replacing the
-/// current scope with the given one.
DILocation DILocation::copyWithNewScope(LLVMContext &Ctx,
- DILexicalBlock NewScope) {
+ DILexicalBlockFile NewScope) {
SmallVector<Value *, 10> Elts;
assert(Verify());
for (unsigned I = 0; I < DbgNode->getNumOperands(); ++I) {
return DILocation(NewDIL);
}
-/// 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());
+DIVariable llvm::createInlinedVariable(MDNode *DV, MDNode *InlinedScope,
+ LLVMContext &VMContext) {
+ assert(DIVariable(DV).Verify() && "Expected a DIVariable");
+ if (!InlinedScope)
+ return cleanseInlinedVariable(DV, VMContext);
- bool isObjCLike = false;
- for (size_t i = 0, e = FName.size(); i < e; ++i) {
- char C = FName[i];
- if (C == '[')
- isObjCLike = true;
+ // 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);
- if (isObjCLike && (C == '[' || C == ']' || C == ' ' || C == ':' ||
- C == '+' || C == '(' || C == ')'))
- Out.push_back('.');
- else
- Out.push_back(C);
- }
+ DIVariable Inlined(MDNode::get(VMContext, Elts));
+ assert(Inlined.Verify() && "Expected to create a DIVariable");
+ return Inlined;
}
-/// 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());
-}
+DIVariable llvm::cleanseInlinedVariable(MDNode *DV, LLVMContext &VMContext) {
+ assert(DIVariable(DV).Verify() && "Expected a DIVariable");
+ if (!DIVariable(DV).getInlinedAt())
+ return DIVariable(DV);
-/// 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());
-}
+ // Remove inlined scope.
+ SmallVector<Value *, 8> Elts;
+ for (unsigned I = 0, E = DIVariableInlinedAtIndex; I != E; ++I)
+ Elts.push_back(DV->getOperand(I));
-/// 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));
+ DIVariable Cleansed(MDNode::get(VMContext, Elts));
+ assert(Cleansed.Verify() && "Expected to create a DIVariable");
+ return Cleansed;
}
-/// 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));
-}
-
-/// 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(F->getParent()->getContext());
+ 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")) {
}
}
-/// 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())
}
}
-/// processSubprogram - Process DISubprogram.
void DebugInfoFinder::processSubprogram(DISubprogram SP) {
if (!addSubprogram(SP))
return;
}
}
-/// processDeclare - Process DbgDeclareInst.
void DebugInfoFinder::processDeclare(const Module &M,
const DbgDeclareInst *DDI) {
MDNode *N = dyn_cast<MDNode>(DDI->getVariable());
processType(DIVariable(N).getType().resolve(TypeIdentifierMap));
}
-/// addType - Add type into Tys.
bool DebugInfoFinder::addType(DIType DT) {
if (!DT)
return false;
return true;
}
-/// addCompileUnit - Add compile unit into CUs.
bool DebugInfoFinder::addCompileUnit(DICompileUnit CU) {
if (!CU)
return false;
return true;
}
-/// addGlobalVariable - Add global variable into GVs.
bool DebugInfoFinder::addGlobalVariable(DIGlobalVariable DIG) {
if (!DIG)
return false;
return true;
}
-// addSubprogram - Add subprgoram into SPs.
bool DebugInfoFinder::addSubprogram(DISubprogram SP) {
if (!SP)
return false;
// 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)
return;
DINameSpace(DbgNode).printInternal(OS);
} else if (this->isScope()) {
DIScope(DbgNode).printInternal(OS);
+ } else if (this->isExpression()) {
+ DIExpression(DbgNode).printInternal(OS);
}
}
}
void DIType::printInternal(raw_ostream &OS) const {
- if (!DbgNode || isTrivialType())
+ if (!DbgNode)
return;
StringRef Res = getName();
OS << " [private]";
else if (isProtected())
OS << " [protected]";
+ else if (isPublic())
+ OS << " [public]";
if (isArtificial())
OS << " [artificial]";
void DICompositeType::printInternal(raw_ostream &OS) const {
DIType::printInternal(OS);
- DIArray A = getTypeArray();
+ DIArray A = getElements();
OS << " [" << A.getNumElements() << " elements]";
}
OS << " [private]";
else if (isProtected())
OS << " [protected]";
+ else if (isPublic())
+ OS << " [public]";
if (isLValueReference())
OS << " [reference]";
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())
}
}
-/// Specialize constructor to make sure it has the correct type.
template <> DIRef<DIScope>::DIRef(const Value *V) : Val(V) {
assert(isScopeRef(V) && "DIScopeRef should be a MDString or MDNode");
}
assert(isTypeRef(V) && "DITypeRef should be a MDString or MDNode");
}
-/// Specialize getFieldAs to handle fields that are references to DIScopes.
template <>
DIScopeRef DIDescriptor::getFieldAs<DIScopeRef>(unsigned Elt) const {
return DIScopeRef(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));
}
-/// 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
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)
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