diff --git a/lib/IR/DebugInfo.cpp b/lib/IR/DebugInfo.cpp
index f63fa1a22d072274b1a6db157c8bdc5ceff787ad..ba45e828636f87d5de6b6d49bb9a62ca48b90e4a 100644 (file)
--- a/lib/IR/DebugInfo.cpp
+++ b/lib/IR/DebugInfo.cpp
// DIDescriptor
//===----------------------------------------------------------------------===//
-DIDescriptor::DIDescriptor(const DIFile F) : DbgNode(F.DbgNode) {
-}
-
-DIDescriptor::DIDescriptor(const DISubprogram F) : DbgNode(F.DbgNode) {
-}
-
-DIDescriptor::DIDescriptor(const DILexicalBlockFile F) : DbgNode(F.DbgNode) {
-}
-
-DIDescriptor::DIDescriptor(const DILexicalBlock F) : DbgNode(F.DbgNode) {
-}
-
-DIDescriptor::DIDescriptor(const DIVariable F) : DbgNode(F.DbgNode) {
-}
-
-DIDescriptor::DIDescriptor(const DIType F) : DbgNode(F.DbgNode) {
-}
-
bool DIDescriptor::Verify() const {
return DbgNode &&
(DIDerivedType(DbgNode).Verify() ||
return DbgNode->getOperand(Elt);
}
-static const MDNode *getNodeField(const MDNode *DbgNode, unsigned Elt) {
- if (const MDNode *R = dyn_cast_or_null<MDNode>(getField(DbgNode, Elt)))
- return R;
- return 0;
+static MDNode *getNodeField(const MDNode *DbgNode, unsigned Elt) {
+ return dyn_cast_or_null<MDNode>(getField(DbgNode, Elt));
}
static StringRef getStringField(const MDNode *DbgNode, unsigned Elt) {
return 0;
if (Elt < DbgNode->getNumOperands())
- if (ConstantInt *CI
- = dyn_cast_or_null<ConstantInt>(DbgNode->getOperand(Elt)))
+ if (ConstantInt *CI =
+ dyn_cast_or_null<ConstantInt>(DbgNode->getOperand(Elt)))
return CI->getZExtValue();
return 0;
return 0;
if (Elt < DbgNode->getNumOperands())
- if (ConstantInt *CI
- = dyn_cast_or_null<ConstantInt>(DbgNode->getOperand(Elt)))
+ if (ConstantInt *CI =
+ dyn_cast_or_null<ConstantInt>(DbgNode->getOperand(Elt)))
return CI->getSExtValue();
return 0;
}
DIDescriptor DIDescriptor::getDescriptorField(unsigned Elt) const {
- if (DbgNode == 0)
- return DIDescriptor();
-
- if (Elt < DbgNode->getNumOperands())
- return
- DIDescriptor(dyn_cast_or_null<const MDNode>(DbgNode->getOperand(Elt)));
- return DIDescriptor();
+ MDNode *Field = getNodeField(DbgNode, Elt);
+ return DIDescriptor(Field);
}
GlobalVariable *DIDescriptor::getGlobalVariableField(unsigned Elt) const {
return 0;
if (Elt < DbgNode->getNumOperands())
- return dyn_cast_or_null<GlobalVariable>(DbgNode->getOperand(Elt));
+ return dyn_cast_or_null<GlobalVariable>(DbgNode->getOperand(Elt));
return 0;
}
return 0;
if (Elt < DbgNode->getNumOperands())
- return dyn_cast_or_null<Constant>(DbgNode->getOperand(Elt));
+ return dyn_cast_or_null<Constant>(DbgNode->getOperand(Elt));
return 0;
}
return 0;
if (Elt < DbgNode->getNumOperands())
- return dyn_cast_or_null<Function>(DbgNode->getOperand(Elt));
+ return dyn_cast_or_null<Function>(DbgNode->getOperand(Elt));
return 0;
}
return;
if (Elt < DbgNode->getNumOperands()) {
- MDNode *Node = const_cast<MDNode*>(DbgNode);
+ MDNode *Node = const_cast<MDNode *>(DbgNode);
Node->replaceOperandWith(Elt, F);
}
}
unsigned DIVariable::getNumAddrElements() const {
- return DbgNode->getNumOperands()-8;
+ return DbgNode->getNumOperands() - 8;
}
/// getInlinedAt - If this variable is inlined then return inline location.
-MDNode *DIVariable::getInlinedAt() const {
- return dyn_cast_or_null<MDNode>(DbgNode->getOperand(7));
-}
+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;
+ if (!DbgNode)
+ return false;
switch (getTag()) {
case dwarf::DW_TAG_base_type:
case dwarf::DW_TAG_unspecified_type:
/// isDerivedType - Return true if the specified tag is legal for DIDerivedType.
bool DIDescriptor::isDerivedType() const {
- if (!DbgNode) return false;
+ if (!DbgNode)
+ return false;
switch (getTag()) {
case dwarf::DW_TAG_typedef:
case dwarf::DW_TAG_pointer_type:
/// isCompositeType - Return true if the specified tag is legal for
/// DICompositeType.
bool DIDescriptor::isCompositeType() const {
- if (!DbgNode) return false;
+ if (!DbgNode)
+ return false;
switch (getTag()) {
case dwarf::DW_TAG_array_type:
case dwarf::DW_TAG_structure_type:
/// isVariable - Return true if the specified tag is legal for DIVariable.
bool DIDescriptor::isVariable() const {
- if (!DbgNode) return false;
+ if (!DbgNode)
+ return false;
switch (getTag()) {
case dwarf::DW_TAG_auto_variable:
case dwarf::DW_TAG_arg_variable:
getTag() == dwarf::DW_TAG_constant);
}
-/// isGlobal - Return true if the specified tag is legal for DIGlobal.
-bool DIDescriptor::isGlobal() const {
- return isGlobalVariable();
-}
-
/// isUnspecifiedParmeter - Return true if the specified tag is
/// DW_TAG_unspecified_parameters.
bool DIDescriptor::isUnspecifiedParameter() const {
/// isScope - Return true if the specified tag is one of the scope
/// related tag.
bool DIDescriptor::isScope() const {
- if (!DbgNode) return false;
+ 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 false;
+ return isType();
}
/// isTemplateTypeParameter - Return true if the specified tag is
/// lexical block with an extra file.
bool DIDescriptor::isLexicalBlockFile() const {
return DbgNode && getTag() == dwarf::DW_TAG_lexical_block &&
- (DbgNode->getNumOperands() == 3);
+ (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);
+ (DbgNode->getNumOperands() > 3);
}
/// isSubrange - Return true if the specified tag is DW_TAG_subrange_type.
// Simple Descriptor Constructors and other Methods
//===----------------------------------------------------------------------===//
-DIType::DIType(const MDNode *N) : DIScope(N) {
- if (!N) return;
- if (!isType())
- DbgNode = 0;
-}
-
unsigned DIArray::getNumElements() const {
if (!DbgNode)
return 0;
return DbgNode->getNumOperands();
}
-/// replaceAllUsesWith - Replace all uses of debug info referenced by
-/// this descriptor.
+/// replaceAllUsesWith - Replace all uses of the MDNode used by this
+/// type with the one in the passed descriptor.
void DIType::replaceAllUsesWith(DIDescriptor &D) {
- if (!DbgNode)
- return;
+
+ 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
// this detail by allowing a value to be replaced with replaceAllUsesWith()
// itself.
if (DbgNode != D) {
- MDNode *Node = const_cast<MDNode*>(DbgNode);
+ MDNode *Node = const_cast<MDNode *>(DbgNode);
const MDNode *DN = D;
const Value *V = cast_or_null<Value>(DN);
- Node->replaceAllUsesWith(const_cast<Value*>(V));
+ Node->replaceAllUsesWith(const_cast<Value *>(V));
MDNode::deleteTemporary(Node);
}
}
-/// replaceAllUsesWith - Replace all uses of debug info referenced by
-/// this descriptor.
+/// replaceAllUsesWith - Replace all uses of the MDNode used by this
+/// type with the one in D.
void DIType::replaceAllUsesWith(MDNode *D) {
- if (!DbgNode)
- return;
+
+ 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
// this detail by allowing a value to be replaced with replaceAllUsesWith()
// itself.
if (DbgNode != D) {
- MDNode *Node = const_cast<MDNode*>(DbgNode);
+ MDNode *Node = const_cast<MDNode *>(DbgNode);
const MDNode *DN = D;
const Value *V = cast_or_null<Value>(DN);
- Node->replaceAllUsesWith(const_cast<Value*>(V));
+ Node->replaceAllUsesWith(const_cast<Value *>(V));
MDNode::deleteTemporary(Node);
}
}
-/// isUnsignedDIType - Return true if type encoding is unsigned.
-bool DIType::isUnsignedDIType() {
- DIDerivedType DTy(DbgNode);
- if (DTy.Verify())
- return DTy.getTypeDerivedFrom().isUnsignedDIType();
-
- DIBasicType BTy(DbgNode);
- if (BTy.Verify()) {
- unsigned Encoding = BTy.getEncoding();
- if (Encoding == dwarf::DW_ATE_unsigned ||
- Encoding == dwarf::DW_ATE_unsigned_char ||
- Encoding == dwarf::DW_ATE_boolean)
- return true;
- }
- return false;
-}
-
/// Verify - Verify that a compile unit is well formed.
bool DICompileUnit::Verify() const {
if (!isCompileUnit())
return false;
- StringRef N = getFilename();
- if (N.empty())
+
+ // Don't bother verifying the compilation directory or producer string
+ // as those could be empty.
+ if (getFilename().empty())
return false;
- // It is possible that directory and produce string is empty.
+
return DbgNode->getNumOperands() == 13;
}
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;
+}
+
+/// 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());
+}
+
+/// 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);
+}
+
+/// 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());
+}
+
+/// 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;
- unsigned Tag = getTag();
+ // Make sure Context @ field 2 is MDNode.
+ if (!fieldIsScopeRef(DbgNode, 2))
+ 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_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_inheritance && Tag != dwarf::DW_TAG_friend &&
getFilename().empty())
return false;
- return true;
+ // DIType is abstract, it should be a BasicType, a DerivedType or
+ // a CompositeType.
+ if (isBasicType())
+ return DIBasicType(DbgNode).Verify();
+ else if (isCompositeType())
+ return DICompositeType(DbgNode).Verify();
+ else if (isDerivedType())
+ return DIDerivedType(DbgNode).Verify();
+ else
+ return false;
}
/// Verify - Verify that a basic type descriptor is well formed.
/// 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))
+ return false;
+ if (getTag() == dwarf::DW_TAG_ptr_to_member_type)
+ // Make sure ClassType @ field 10 is a TypeRef.
+ if (!fieldIsTypeRef(DbgNode, 10))
+ return false;
+
return isDerivedType() && DbgNode->getNumOperands() >= 10 &&
DbgNode->getNumOperands() <= 14;
}
if (!isCompositeType())
return false;
- return DbgNode->getNumOperands() >= 10 && DbgNode->getNumOperands() <= 14;
+ // 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;
}
/// Verify - Verify that a subprogram descriptor is well formed.
if (!isSubprogram())
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))
+ return false;
+ // Containing type @ field 12.
+ if (!fieldIsTypeRef(DbgNode, 12))
+ return false;
+
+ // A subprogram can't be both & and &&.
+ if (isLValueReference() && isRValueReference())
+ return false;
+
return DbgNode->getNumOperands() == 20;
}
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))
+ return false;
+ // Make sure StaticDataMemberDeclaration @ field 12 is MDNode.
+ if (!fieldIsMDNode(DbgNode, 12))
+ return false;
return DbgNode->getNumOperands() == 13;
}
if (!isVariable())
return false;
+ // Make sure context @ field 1 and type @ field 5 are MDNodes.
+ if (!fieldIsMDNode(DbgNode, 1))
+ return false;
+ if (!fieldIsMDNode(DbgNode, 5))
+ return false;
return DbgNode->getNumOperands() >= 8;
}
}
/// \brief Retrieve the MDNode for the directory/file pair.
-MDNode *DIFile::getFileNode() const {
- return const_cast<MDNode*>(getNodeField(DbgNode, 1));
-}
+MDNode *DIFile::getFileNode() const { return getNodeField(DbgNode, 1); }
/// \brief Verify that the file descriptor is well formed.
bool DIFile::Verify() const {
(DbgNode->getNumOperands() == 4 || DbgNode->getNumOperands() == 5);
}
-/// getOriginalTypeSize - If this type is derived from a base type then
-/// return base type size.
-uint64_t DIDerivedType::getOriginalTypeSize() const {
- unsigned Tag = getTag();
-
- if (Tag != dwarf::DW_TAG_member && Tag != dwarf::DW_TAG_typedef &&
- Tag != dwarf::DW_TAG_const_type && Tag != dwarf::DW_TAG_volatile_type &&
- Tag != dwarf::DW_TAG_restrict_type)
- return getSizeInBits();
-
- DIType BaseType = getTypeDerivedFrom();
-
- // If this type is not derived from any type then take conservative approach.
- if (!BaseType.isValid())
- return getSizeInBits();
-
- // If this is a derived type, go ahead and get the base type, unless it's a
- // reference then it's just the size of the field. Pointer types have no need
- // of this since they're a different type of qualification on the type.
- if (BaseType.getTag() == dwarf::DW_TAG_reference_type ||
- BaseType.getTag() == dwarf::DW_TAG_rvalue_reference_type)
- return getSizeInBits();
-
- if (BaseType.isDerivedType())
- return DIDerivedType(BaseType).getOriginalTypeSize();
+/// getObjCProperty - Return property node, if this ivar is associated with one.
+MDNode *DIDerivedType::getObjCProperty() const {
+ return getNodeField(DbgNode, 10);
+}
- return BaseType.getSizeInBits();
+MDString *DICompositeType::getIdentifier() const {
+ return cast_or_null<MDString>(getField(DbgNode, 14));
}
-/// getObjCProperty - Return property node, if this ivar is associated with one.
-MDNode *DIDerivedType::getObjCProperty() const {
- if (DbgNode->getNumOperands() <= 10)
- return NULL;
- return dyn_cast_or_null<MDNode>(DbgNode->getOperand(10));
+#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() == 14) &&
+ assert((!TParams || DbgNode->getNumOperands() == 15) &&
"If you're setting the template parameters this should include a slot "
"for that!");
TrackingVH<MDNode> N(*this);
- N->replaceOperandWith(10, Elements);
+ 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);
+ }
if (TParams)
N->replaceOperandWith(13, TParams);
DbgNode = N;
}
+void DICompositeType::addMember(DIDescriptor D) {
+ SmallVector<llvm::Value *, 16> M;
+ DIArray OrigM = getTypeArray();
+ unsigned Elements = OrigM.getNumElements();
+ if (Elements == 1 && !OrigM.getElement(0))
+ Elements = 0;
+ M.reserve(Elements + 1);
+ for (unsigned i = 0; i != Elements; ++i)
+ M.push_back(OrigM.getElement(i));
+ M.push_back(D);
+ setTypeArray(DIArray(MDNode::get(DbgNode->getContext(), M)));
+}
+
+/// 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);
+ DICompositeType DTy(DbgNode);
+ if (!DTy.getIdentifier())
+ 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);
+ N->replaceOperandWith(12, ContainingType.getRef());
DbgNode = N;
}
}
unsigned DISubprogram::isOptimized() const {
- assert (DbgNode && "Invalid subprogram descriptor!");
+ assert(DbgNode && "Invalid subprogram descriptor!");
if (DbgNode->getNumOperands() == 15)
return getUnsignedField(14);
return 0;
}
MDNode *DISubprogram::getVariablesNodes() const {
- if (!DbgNode || DbgNode->getNumOperands() <= 18)
- return NULL;
- return dyn_cast_or_null<MDNode>(DbgNode->getOperand(18));
+ return getNodeField(DbgNode, 18);
}
DIArray DISubprogram::getVariables() const {
- if (!DbgNode || DbgNode->getNumOperands() <= 18)
- return DIArray();
- if (MDNode *T = dyn_cast_or_null<MDNode>(DbgNode->getOperand(18)))
- return DIArray(T);
- return DIArray();
+ return DIArray(getNodeField(DbgNode, 18));
}
Value *DITemplateValueParameter::getValue() const {
return getField(DbgNode, 4);
}
-void DIScope::setFilename(StringRef Name, LLVMContext &Context) {
- if (!DbgNode)
- return;
- MDString *MDName(MDString::get(Context, Name));
- const_cast<MDNode*>(getNodeField(DbgNode, 1))->replaceOperandWith(0, MDName);
+// If the current node has a parent scope then return that,
+// else return an empty scope.
+DIScopeRef DIScope::getContext() const {
+
+ if (isType())
+ return DIType(DbgNode).getContext();
+
+ if (isSubprogram())
+ return DIScopeRef(DISubprogram(DbgNode).getContext());
+
+ if (isLexicalBlock())
+ return DIScopeRef(DILexicalBlock(DbgNode).getContext());
+
+ if (isLexicalBlockFile())
+ return DIScopeRef(DILexicalBlockFile(DbgNode).getContext());
+
+ if (isNameSpace())
+ return DIScopeRef(DINameSpace(DbgNode).getContext());
+
+ assert((isFile() || isCompileUnit()) && "Unhandled type of scope.");
+ return DIScopeRef(NULL);
+}
+
+// If the scope node has a name, return that, else return an empty string.
+StringRef DIScope::getName() const {
+ if (isType())
+ return DIType(DbgNode).getName();
+ if (isSubprogram())
+ return DISubprogram(DbgNode).getName();
+ if (isNameSpace())
+ return DINameSpace(DbgNode).getName();
+ assert((isLexicalBlock() || isLexicalBlockFile() || isFile() ||
+ isCompileUnit()) &&
+ "Unhandled type of scope.");
+ return StringRef();
}
StringRef DIScope::getFilename() const {
if (!DbgNode || DbgNode->getNumOperands() < 13)
return DIArray();
- if (MDNode *N = dyn_cast_or_null<MDNode>(DbgNode->getOperand(7)))
- return DIArray(N);
- return DIArray();
+ return DIArray(getNodeField(DbgNode, 7));
}
DIArray DICompileUnit::getRetainedTypes() const {
if (!DbgNode || DbgNode->getNumOperands() < 13)
return DIArray();
- if (MDNode *N = dyn_cast_or_null<MDNode>(DbgNode->getOperand(8)))
- return DIArray(N);
- return DIArray();
+ return DIArray(getNodeField(DbgNode, 8));
}
DIArray DICompileUnit::getSubprograms() const {
if (!DbgNode || DbgNode->getNumOperands() < 13)
return DIArray();
- if (MDNode *N = dyn_cast_or_null<MDNode>(DbgNode->getOperand(9)))
- return DIArray(N);
- return DIArray();
+ return DIArray(getNodeField(DbgNode, 9));
}
-
DIArray DICompileUnit::getGlobalVariables() const {
if (!DbgNode || DbgNode->getNumOperands() < 13)
return DIArray();
- if (MDNode *N = dyn_cast_or_null<MDNode>(DbgNode->getOperand(10)))
- return DIArray(N);
- return DIArray();
+ return DIArray(getNodeField(DbgNode, 10));
}
DIArray DICompileUnit::getImportedEntities() const {
if (!DbgNode || DbgNode->getNumOperands() < 13)
return DIArray();
- if (MDNode *N = dyn_cast_or_null<MDNode>(DbgNode->getOperand(11)))
- return DIArray(N);
- return DIArray();
+ return DIArray(getNodeField(DbgNode, 11));
}
/// fixupSubprogramName - Replace contains special characters used
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));
+ i == 7 ? Elts.push_back(InlinedScope) : Elts.push_back(DV->getOperand(i));
return DIVariable(MDNode::get(VMContext, Elts));
}
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));
+ i == 7 ? Elts.push_back(Constant::getNullValue(Type::getInt32Ty(VMContext)))
+ : Elts.push_back(DV->getOperand(i));
return DIVariable(MDNode::get(VMContext, Elts));
}
if (T.isCompositeType())
return DICompositeType(T);
- if (T.isDerivedType())
- return getDICompositeType(DIDerivedType(T).getTypeDerivedFrom());
+ if (T.isDerivedType()) {
+ // This function is currently used by dragonegg and dragonegg does
+ // not generate identifier for types, so using an empty map to resolve
+ // DerivedFrom should be fine.
+ DITypeIdentifierMap EmptyMap;
+ return getDICompositeType(
+ DIDerivedType(T).getTypeDerivedFrom().resolve(EmptyMap));
+ }
return DICompositeType();
}
-/// isSubprogramContext - Return true if Context is either a subprogram
-/// or another context nested inside a subprogram.
-bool llvm::isSubprogramContext(const MDNode *Context) {
- if (!Context)
- return false;
- DIDescriptor D(Context);
- if (D.isSubprogram())
- return true;
- if (D.isType())
- return isSubprogramContext(DIType(Context).getContext());
- return false;
+/// Update DITypeIdentifierMap by going through retained types of each CU.
+DITypeIdentifierMap
+llvm::generateDITypeIdentifierMap(const NamedMDNode *CU_Nodes) {
+ DITypeIdentifierMap Map;
+ for (unsigned CUi = 0, CUe = CU_Nodes->getNumOperands(); CUi != CUe; ++CUi) {
+ DICompileUnit CU(CU_Nodes->getOperand(CUi));
+ DIArray Retain = CU.getRetainedTypes();
+ for (unsigned Ti = 0, Te = Retain.getNumElements(); Ti != Te; ++Ti) {
+ if (!Retain.getElement(Ti).isCompositeType())
+ continue;
+ DICompositeType Ty(Retain.getElement(Ti));
+ if (MDString *TypeId = Ty.getIdentifier()) {
+ // Definition has priority over declaration.
+ // Try to insert (TypeId, Ty) to Map.
+ std::pair<DITypeIdentifierMap::iterator, bool> P =
+ Map.insert(std::make_pair(TypeId, Ty));
+ // If TypeId already exists in Map and this is a definition, replace
+ // whatever we had (declaration or definition) with the definition.
+ if (!P.second && !Ty.isForwardDecl())
+ P.first->second = Ty;
+ }
+ }
+ }
+ return Map;
}
//===----------------------------------------------------------------------===//
// DebugInfoFinder implementations.
//===----------------------------------------------------------------------===//
+void DebugInfoFinder::reset() {
+ CUs.clear();
+ SPs.clear();
+ GVs.clear();
+ TYs.clear();
+ Scopes.clear();
+ NodesSeen.clear();
+ TypeIdentifierMap.clear();
+ TypeMapInitialized = false;
+}
+
+void DebugInfoFinder::InitializeTypeMap(const Module &M) {
+ if (!TypeMapInitialized)
+ if (NamedMDNode *CU_Nodes = M.getNamedMetadata("llvm.dbg.cu")) {
+ TypeIdentifierMap = generateDITypeIdentifierMap(CU_Nodes);
+ TypeMapInitialized = true;
+ }
+}
+
/// 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")) {
for (unsigned i = 0, e = CU_Nodes->getNumOperands(); i != e; ++i) {
DICompileUnit CU(CU_Nodes->getOperand(i));
DIArray RetainedTypes = CU.getRetainedTypes();
for (unsigned i = 0, e = RetainedTypes.getNumElements(); i != e; ++i)
processType(DIType(RetainedTypes.getElement(i)));
- // FIXME: We really shouldn't be bailing out after visiting just one CU
- return;
+ 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 (Entity.isType())
+ processType(DIType(Entity));
+ else if (Entity.isSubprogram())
+ processSubprogram(DISubprogram(Entity));
+ else if (Entity.isNameSpace())
+ processScope(DINameSpace(Entity).getContext());
+ }
}
}
}
/// processLocation - Process DILocation.
-void DebugInfoFinder::processLocation(DILocation Loc) {
- if (!Loc.Verify()) return;
- DIDescriptor S(Loc.getScope());
- if (S.isCompileUnit())
- addCompileUnit(DICompileUnit(S));
- else if (S.isSubprogram())
- processSubprogram(DISubprogram(S));
- else if (S.isLexicalBlock())
- processLexicalBlock(DILexicalBlock(S));
- else if (S.isLexicalBlockFile()) {
- DILexicalBlockFile DBF = DILexicalBlockFile(S);
- processLexicalBlock(DILexicalBlock(DBF.getScope()));
- }
- processLocation(Loc.getOrigLocation());
+void DebugInfoFinder::processLocation(const Module &M, DILocation Loc) {
+ if (!Loc)
+ return;
+ InitializeTypeMap(M);
+ processScope(Loc.getScope());
+ processLocation(M, Loc.getOrigLocation());
}
/// processType - Process DIType.
void DebugInfoFinder::processType(DIType DT) {
if (!addType(DT))
return;
- processScope(DT.getContext());
+ processScope(DT.getContext().resolve(TypeIdentifierMap));
if (DT.isCompositeType()) {
DICompositeType DCT(DT);
- processType(DCT.getTypeDerivedFrom());
+ processType(DCT.getTypeDerivedFrom().resolve(TypeIdentifierMap));
DIArray DA = DCT.getTypeArray();
for (unsigned i = 0, e = DA.getNumElements(); i != e; ++i) {
DIDescriptor D = DA.getElement(i);
}
} else if (DT.isDerivedType()) {
DIDerivedType DDT(DT);
- processType(DDT.getTypeDerivedFrom());
+ processType(DDT.getTypeDerivedFrom().resolve(TypeIdentifierMap));
}
}
processType(Ty);
return;
}
+ if (Scope.isCompileUnit()) {
+ addCompileUnit(DICompileUnit(Scope));
+ return;
+ }
+ if (Scope.isSubprogram()) {
+ processSubprogram(DISubprogram(Scope));
+ return;
+ }
if (!addScope(Scope))
return;
if (Scope.isLexicalBlock()) {
else if (Context.isLexicalBlockFile()) {
DILexicalBlockFile DBF = DILexicalBlockFile(Context);
return processLexicalBlock(DILexicalBlock(DBF.getScope()));
- }
- else
+ } else
return processSubprogram(DISubprogram(Context));
}
void DebugInfoFinder::processSubprogram(DISubprogram SP) {
if (!addSubprogram(SP))
return;
- processScope(SP.getContext());
+ processScope(SP.getContext().resolve(TypeIdentifierMap));
processType(SP.getType());
+ DIArray TParams = SP.getTemplateParams();
+ for (unsigned I = 0, E = TParams.getNumElements(); I != E; ++I) {
+ 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 DbgDeclareInst *DDI) {
+void DebugInfoFinder::processDeclare(const Module &M,
+ const DbgDeclareInst *DDI) {
MDNode *N = dyn_cast<MDNode>(DDI->getVariable());
- if (!N) return;
+ if (!N)
+ return;
+ InitializeTypeMap(M);
DIDescriptor DV(N);
if (!DV.isVariable())
if (!NodesSeen.insert(DV))
return;
+ processScope(DIVariable(N).getContext());
+ processType(DIVariable(N).getType());
+}
+
+void DebugInfoFinder::processValue(const Module &M, const DbgValueInst *DVI) {
+ MDNode *N = dyn_cast<MDNode>(DVI->getVariable());
+ if (!N)
+ return;
+ InitializeTypeMap(M);
+
+ DIDescriptor DV(N);
+ if (!DV.isVariable())
+ return;
+
+ if (!NodesSeen.insert(DV))
+ return;
+ processScope(DIVariable(N).getContext());
processType(DIVariable(N).getType());
}
/// addType - Add type into Tys.
bool DebugInfoFinder::addType(DIType DT) {
- if (!DT.isValid())
+ if (!DT)
return false;
if (!NodesSeen.insert(DT))
/// addCompileUnit - Add compile unit into CUs.
bool DebugInfoFinder::addCompileUnit(DICompileUnit CU) {
- if (!CU.Verify())
+ if (!CU)
return false;
-
if (!NodesSeen.insert(CU))
return false;
/// addGlobalVariable - Add global variable into GVs.
bool DebugInfoFinder::addGlobalVariable(DIGlobalVariable DIG) {
- if (!DIDescriptor(DIG).isGlobalVariable())
+ if (!DIG)
return false;
if (!NodesSeen.insert(DIG))
// addSubprogram - Add subprgoram into SPs.
bool DebugInfoFinder::addSubprogram(DISubprogram SP) {
- if (!DIDescriptor(SP).isSubprogram())
+ if (!SP)
return false;
if (!NodesSeen.insert(SP))
bool DebugInfoFinder::addScope(DIScope Scope) {
if (!Scope)
return false;
+ // FIXME: Ocaml binding generates a scope with no content, we treat it
+ // as null for now.
+ if (Scope->getNumOperands() == 0)
+ return false;
if (!NodesSeen.insert(Scope))
return false;
Scopes.push_back(Scope);
/// dump - Print descriptor to dbgs() with a newline.
void DIDescriptor::dump() const {
- print(dbgs()); dbgs() << '\n';
+ print(dbgs());
+ dbgs() << '\n';
}
/// print - Print descriptor.
void DIDescriptor::print(raw_ostream &OS) const {
- if (!DbgNode) return;
+ if (!DbgNode)
+ return;
if (const char *Tag = dwarf::TagString(getTag()))
OS << "[ " << Tag << " ]";
}
void DIType::printInternal(raw_ostream &OS) const {
- if (!DbgNode) return;
+ if (!DbgNode)
+ return;
StringRef Res = getName();
if (!Res.empty())
// TODO: Print context?
- OS << " [line " << getLineNumber()
- << ", size " << getSizeInBits()
- << ", align " << getAlignInBits()
- << ", offset " << getOffsetInBits();
+ OS << " [line " << getLineNumber() << ", size " << getSizeInBits()
+ << ", align " << getAlignInBits() << ", offset " << getOffsetInBits();
if (isBasicType())
if (const char *Enc =
- dwarf::AttributeEncodingString(DIBasicType(DbgNode).getEncoding()))
+ dwarf::AttributeEncodingString(DIBasicType(DbgNode).getEncoding()))
OS << ", enc " << Enc;
OS << "]";
OS << " [vector]";
if (isStaticMember())
OS << " [static]";
+
+ if (isLValueReference())
+ OS << " [reference]";
+
+ if (isRValueReference())
+ OS << " [rvalue reference]";
}
void DIDerivedType::printInternal(raw_ostream &OS) const {
else if (isProtected())
OS << " [protected]";
+ if (isLValueReference())
+ OS << " [reference]";
+
+ if (isRValueReference())
+ OS << " [rvalue reference]";
+
StringRef Res = getName();
if (!Res.empty())
OS << " [" << Res << ']';
if (!Name.empty())
OS << " [" << Name << ']';
- OS << " [line " << getLineNumber()
- << ", properties " << getUnsignedField(6) << ']';
+ OS << " [line " << getLineNumber() << ", properties " << getUnsignedField(6)
+ << ']';
}
static void printDebugLoc(DebugLoc DL, raw_ostream &CommentOS,
const LLVMContext &Ctx) {
- if (!DL.isUnknown()) { // Print source line info.
+ if (!DL.isUnknown()) { // Print source line info.
DIScope Scope(DL.getScope(Ctx));
- assert(Scope.isScope() &&
- "Scope of a DebugLoc should be a DIScope.");
+ assert(Scope.isScope() && "Scope of a DebugLoc should be a DIScope.");
// Omit the directory, because it's likely to be long and uninteresting.
CommentOS << Scope.getFilename();
CommentOS << ':' << DL.getLine();
}
}
}
+
+/// 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");
+}
+template <> DIRef<DIType>::DIRef(const Value *V) : Val(V) {
+ 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
+ // the module.
+ if (Function *Declare = M.getFunction("llvm.dbg.declare")) {
+ while (!Declare->use_empty()) {
+ CallInst *CI = cast<CallInst>(Declare->use_back());
+ CI->eraseFromParent();
+ }
+ Declare->eraseFromParent();
+ Changed = true;
+ }
+
+ if (Function *DbgVal = M.getFunction("llvm.dbg.value")) {
+ while (!DbgVal->use_empty()) {
+ CallInst *CI = cast<CallInst>(DbgVal->use_back());
+ CI->eraseFromParent();
+ }
+ DbgVal->eraseFromParent();
+ Changed = true;
+ }
+
+ for (Module::named_metadata_iterator NMI = M.named_metadata_begin(),
+ NME = M.named_metadata_end(); NMI != NME;) {
+ NamedMDNode *NMD = NMI;
+ ++NMI;
+ if (NMD->getName().startswith("llvm.dbg.")) {
+ NMD->eraseFromParent();
+ Changed = true;
+ }
+ }
+
+ for (Module::iterator MI = M.begin(), ME = M.end(); MI != ME; ++MI)
+ for (Function::iterator FI = MI->begin(), FE = MI->end(); FI != FE;
+ ++FI)
+ for (BasicBlock::iterator BI = FI->begin(), BE = FI->end(); BI != BE;
+ ++BI) {
+ if (!BI->getDebugLoc().isUnknown()) {
+ Changed = true;
+ BI->setDebugLoc(DebugLoc());
+ }
+ }
+
+ 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();
+}