//===----------------------------------------------------------------------===//
#include "llvm/Analysis/DebugInfo.h"
+#include "llvm/Target/TargetMachine.h" // FIXME: LAYERING VIOLATION!
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Intrinsics.h"
#include "llvm/IntrinsicInst.h"
#include "llvm/Instructions.h"
-#include "llvm/LLVMContext.h"
#include "llvm/Module.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/ADT/SmallPtrSet.h"
+#include "llvm/Support/Debug.h"
#include "llvm/Support/Dwarf.h"
-#include "llvm/Support/DebugLoc.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
using namespace llvm::dwarf;
// DIDescriptor
//===----------------------------------------------------------------------===//
-/// ValidDebugInfo - Return true if V represents valid debug info value.
-/// FIXME : Add DIDescriptor.isValid()
-bool DIDescriptor::ValidDebugInfo(MDNode *N, CodeGenOpt::Level OptLevel) {
- if (!N)
- return false;
-
- DIDescriptor DI(N);
-
- // Check current version. Allow Version6 for now.
- unsigned Version = DI.getVersion();
- if (Version != LLVMDebugVersion && Version != LLVMDebugVersion6)
- return false;
-
- unsigned Tag = DI.getTag();
- switch (Tag) {
- case DW_TAG_variable:
- assert(DIVariable(N).Verify() && "Invalid DebugInfo value");
- break;
- case DW_TAG_compile_unit:
- assert(DICompileUnit(N).Verify() && "Invalid DebugInfo value");
- break;
- case DW_TAG_subprogram:
- assert(DISubprogram(N).Verify() && "Invalid DebugInfo value");
- break;
- case DW_TAG_lexical_block:
- // FIXME: This interfers with the quality of generated code during
- // optimization.
- if (OptLevel != CodeGenOpt::None)
- return false;
- // FALLTHROUGH
- default:
- break;
- }
-
- return true;
-}
-
-DIDescriptor::DIDescriptor(MDNode *N, unsigned RequiredTag) {
- DbgNode = N;
-
- // If this is non-null, check to see if the Tag matches. If not, set to null.
- if (N && getTag() != RequiredTag) {
- DbgNode = 0;
- }
-}
-
-const char *
+StringRef
DIDescriptor::getStringField(unsigned Elt) const {
if (DbgNode == 0)
- return NULL;
+ return StringRef();
- if (Elt < DbgNode->getNumElements())
- if (MDString *MDS = dyn_cast_or_null<MDString>(DbgNode->getElement(Elt))) {
- if (MDS->getLength() == 0)
- return NULL;
- return MDS->getString().data();
- }
+ if (Elt < DbgNode->getNumOperands())
+ if (MDString *MDS = dyn_cast_or_null<MDString>(DbgNode->getOperand(Elt)))
+ return MDS->getString();
- return NULL;
+ return StringRef();
}
uint64_t DIDescriptor::getUInt64Field(unsigned Elt) const {
if (DbgNode == 0)
return 0;
- if (Elt < DbgNode->getNumElements())
- if (ConstantInt *CI = dyn_cast<ConstantInt>(DbgNode->getElement(Elt)))
+ if (Elt < DbgNode->getNumOperands())
+ if (ConstantInt *CI = dyn_cast<ConstantInt>(DbgNode->getOperand(Elt)))
return CI->getZExtValue();
return 0;
if (DbgNode == 0)
return DIDescriptor();
- if (Elt < DbgNode->getNumElements() && DbgNode->getElement(Elt))
- return DIDescriptor(dyn_cast<MDNode>(DbgNode->getElement(Elt)));
-
+ if (Elt < DbgNode->getNumOperands())
+ return DIDescriptor(dyn_cast_or_null<const MDNode>(DbgNode->getOperand(Elt)));
return DIDescriptor();
}
if (DbgNode == 0)
return 0;
- if (Elt < DbgNode->getNumElements())
- return dyn_cast_or_null<GlobalVariable>(DbgNode->getElement(Elt));
+ if (Elt < DbgNode->getNumOperands())
+ return dyn_cast_or_null<GlobalVariable>(DbgNode->getOperand(Elt));
return 0;
}
+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;
+}
+
+unsigned DIVariable::getNumAddrElements() const {
+ return DbgNode->getNumOperands()-6;
+}
+
+
//===----------------------------------------------------------------------===//
// Predicates
//===----------------------------------------------------------------------===//
/// isBasicType - Return true if the specified tag is legal for
/// DIBasicType.
bool DIDescriptor::isBasicType() const {
- assert (!isNull() && "Invalid descriptor!");
- unsigned Tag = getTag();
-
- return Tag == dwarf::DW_TAG_base_type;
+ return DbgNode && getTag() == dwarf::DW_TAG_base_type;
}
/// isDerivedType - Return true if the specified tag is legal for DIDerivedType.
bool DIDescriptor::isDerivedType() const {
- assert (!isNull() && "Invalid descriptor!");
- unsigned Tag = getTag();
-
- switch (Tag) {
+ if (!DbgNode) return false;
+ switch (getTag()) {
case dwarf::DW_TAG_typedef:
case dwarf::DW_TAG_pointer_type:
case dwarf::DW_TAG_reference_type:
/// isCompositeType - Return true if the specified tag is legal for
/// DICompositeType.
bool DIDescriptor::isCompositeType() const {
- assert (!isNull() && "Invalid descriptor!");
- unsigned Tag = getTag();
-
- switch (Tag) {
+ if (!DbgNode) return false;
+ switch (getTag()) {
case dwarf::DW_TAG_array_type:
case dwarf::DW_TAG_structure_type:
case dwarf::DW_TAG_union_type:
/// isVariable - Return true if the specified tag is legal for DIVariable.
bool DIDescriptor::isVariable() const {
- assert (!isNull() && "Invalid descriptor!");
- unsigned Tag = getTag();
-
- switch (Tag) {
+ if (!DbgNode) return false;
+ switch (getTag()) {
case dwarf::DW_TAG_auto_variable:
case dwarf::DW_TAG_arg_variable:
case dwarf::DW_TAG_return_variable:
/// isSubprogram - Return true if the specified tag is legal for
/// DISubprogram.
bool DIDescriptor::isSubprogram() const {
- assert (!isNull() && "Invalid descriptor!");
- unsigned Tag = getTag();
-
- return Tag == dwarf::DW_TAG_subprogram;
+ return DbgNode && getTag() == dwarf::DW_TAG_subprogram;
}
/// isGlobalVariable - Return true if the specified tag is legal for
/// DIGlobalVariable.
bool DIDescriptor::isGlobalVariable() const {
- assert (!isNull() && "Invalid descriptor!");
- unsigned Tag = getTag();
-
- return Tag == dwarf::DW_TAG_variable;
+ return DbgNode && getTag() == dwarf::DW_TAG_variable;
}
/// isGlobal - Return true if the specified tag is legal for DIGlobal.
/// isScope - Return true if the specified tag is one of the scope
/// related tag.
bool DIDescriptor::isScope() const {
- assert (!isNull() && "Invalid descriptor!");
- unsigned Tag = getTag();
-
- switch (Tag) {
- case dwarf::DW_TAG_compile_unit:
- case dwarf::DW_TAG_lexical_block:
- case dwarf::DW_TAG_subprogram:
- return true;
- default:
- break;
+ 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:
+ return true;
+ default:
+ break;
}
return false;
}
/// isCompileUnit - Return true if the specified tag is DW_TAG_compile_unit.
bool DIDescriptor::isCompileUnit() const {
- assert (!isNull() && "Invalid descriptor!");
- unsigned Tag = getTag();
+ return DbgNode && getTag() == dwarf::DW_TAG_compile_unit;
+}
- return Tag == 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;
}
/// isLexicalBlock - Return true if the specified tag is DW_TAG_lexical_block.
bool DIDescriptor::isLexicalBlock() const {
- assert (!isNull() && "Invalid descriptor!");
- unsigned Tag = getTag();
-
- return Tag == dwarf::DW_TAG_lexical_block;
+ return DbgNode && getTag() == dwarf::DW_TAG_lexical_block;
}
/// isSubrange - Return true if the specified tag is DW_TAG_subrange_type.
bool DIDescriptor::isSubrange() const {
- assert (!isNull() && "Invalid descriptor!");
- unsigned Tag = getTag();
-
- return Tag == dwarf::DW_TAG_subrange_type;
+ return DbgNode && getTag() == dwarf::DW_TAG_subrange_type;
}
/// isEnumerator - Return true if the specified tag is DW_TAG_enumerator.
bool DIDescriptor::isEnumerator() const {
- assert (!isNull() && "Invalid descriptor!");
- unsigned Tag = getTag();
-
- return Tag == dwarf::DW_TAG_enumerator;
+ return DbgNode && getTag() == dwarf::DW_TAG_enumerator;
}
//===----------------------------------------------------------------------===//
// Simple Descriptor Constructors and other Methods
//===----------------------------------------------------------------------===//
-DIType::DIType(MDNode *N) : DIDescriptor(N) {
+DIType::DIType(const MDNode *N) : DIScope(N) {
if (!N) return;
if (!isBasicType() && !isDerivedType() && !isCompositeType()) {
DbgNode = 0;
}
unsigned DIArray::getNumElements() const {
- assert (DbgNode && "Invalid DIArray");
- return DbgNode->getNumElements();
+ if (!DbgNode)
+ return 0;
+ return DbgNode->getNumOperands();
}
/// replaceAllUsesWith - Replace all uses of debug info referenced by
/// this descriptor. After this completes, the current debug info value
/// is erased.
void DIDerivedType::replaceAllUsesWith(DIDescriptor &D) {
- if (isNull())
+ if (!DbgNode)
return;
- assert (!D.isNull() && "Can not replace with null");
-
// 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 (getNode() != D.getNode()) {
- MDNode *Node = DbgNode;
- Node->replaceAllUsesWith(D.getNode());
- delete Node;
+ 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));
+ Node->destroy();
}
}
/// Verify - Verify that a compile unit is well formed.
bool DICompileUnit::Verify() const {
- if (isNull())
+ if (!DbgNode)
return false;
- const char *N = getFilename();
- if (!N)
+ StringRef N = getFilename();
+ if (N.empty())
return false;
// It is possible that directory and produce string is empty.
return true;
/// Verify - Verify that a type descriptor is well formed.
bool DIType::Verify() const {
- if (isNull())
+ if (!DbgNode)
return false;
- if (getContext().isNull())
+ if (!getContext().Verify())
return false;
DICompileUnit CU = getCompileUnit();
- if (!CU.isNull() && !CU.Verify())
+ if (!CU.Verify())
return false;
return true;
}
/// Verify - Verify that a composite type descriptor is well formed.
bool DICompositeType::Verify() const {
- if (isNull())
+ if (!DbgNode)
return false;
- if (getContext().isNull())
+ if (!getContext().Verify())
return false;
DICompileUnit CU = getCompileUnit();
- if (!CU.isNull() && !CU.Verify())
+ if (!CU.Verify())
return false;
return true;
}
/// Verify - Verify that a subprogram descriptor is well formed.
bool DISubprogram::Verify() const {
- if (isNull())
+ if (!DbgNode)
return false;
- if (getContext().isNull())
+ if (!getContext().Verify())
return false;
DICompileUnit CU = getCompileUnit();
return false;
DICompositeType Ty = getType();
- if (!Ty.isNull() && !Ty.Verify())
+ if (!Ty.Verify())
return false;
return true;
}
/// Verify - Verify that a global variable descriptor is well formed.
bool DIGlobalVariable::Verify() const {
- if (isNull())
+ if (!DbgNode)
return false;
- if (!getDisplayName())
+ if (getDisplayName().empty())
return false;
- if (getContext().isNull())
+ if (!getContext().Verify())
return false;
DICompileUnit CU = getCompileUnit();
- if (!CU.isNull() && !CU.Verify())
+ if (!CU.Verify())
return false;
DIType Ty = getType();
/// Verify - Verify that a variable descriptor is well formed.
bool DIVariable::Verify() const {
- if (isNull())
+ if (!DbgNode)
return false;
- if (getContext().isNull())
+ if (!getContext().Verify())
+ return false;
+
+ if (!getCompileUnit().Verify())
return false;
DIType Ty = getType();
return true;
}
+/// 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 (!DbgNode)
+ return false;
+ if (getName().empty())
+ return false;
+ if (!getCompileUnit().Verify())
+ return false;
+ return true;
+}
+
/// getOriginalTypeSize - If this type is derived from a base type then
/// return base type size.
uint64_t DIDerivedType::getOriginalTypeSize() const {
DIType BaseType = getTypeDerivedFrom();
// If this type is not derived from any type then take conservative
// approach.
- if (BaseType.isNull())
+ if (!BaseType.isValid())
return getSizeInBits();
if (BaseType.isDerivedType())
- return DIDerivedType(BaseType.getNode()).getOriginalTypeSize();
+ return DIDerivedType(BaseType).getOriginalTypeSize();
else
return BaseType.getSizeInBits();
}
return getSizeInBits();
}
+/// isInlinedFnArgument - Return trule 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 false;
+ // This variable is not inlined function argument if its scope
+ // does not describe current function.
+ 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");
- const char *Name = getLinkageName();
- if (!Name)
+ assert(F && "Invalid function");
+ if (F == getFunction())
+ return true;
+ StringRef Name = getLinkageName();
+ if (Name.empty())
Name = getName();
- if (strcmp(F->getName().data(), Name) == 0)
+ if (F->getName() == Name)
return true;
return false;
}
-const char *DIScope::getFilename() const {
+unsigned DISubprogram::isOptimized() const {
+ assert (DbgNode && "Invalid subprogram descriptor!");
+ if (DbgNode->getNumOperands() == 16)
+ return getUnsignedField(15);
+ return 0;
+}
+
+StringRef DIScope::getFilename() const {
+ if (!DbgNode)
+ return StringRef();
if (isLexicalBlock())
return DILexicalBlock(DbgNode).getFilename();
- else if (isSubprogram())
+ if (isSubprogram())
return DISubprogram(DbgNode).getFilename();
- else if (isCompileUnit())
+ if (isCompileUnit())
return DICompileUnit(DbgNode).getFilename();
- else
- assert (0 && "Invalid DIScope!");
- return NULL;
-}
-
-const char *DIScope::getDirectory() const {
+ if (isNameSpace())
+ return DINameSpace(DbgNode).getFilename();
+ if (isType())
+ return DIType(DbgNode).getFilename();
+ if (isFile())
+ return DIFile(DbgNode).getFilename();
+ assert(0 && "Invalid DIScope!");
+ return StringRef();
+}
+
+StringRef DIScope::getDirectory() const {
+ if (!DbgNode)
+ return StringRef();
if (isLexicalBlock())
return DILexicalBlock(DbgNode).getDirectory();
- else if (isSubprogram())
+ if (isSubprogram())
return DISubprogram(DbgNode).getDirectory();
- else if (isCompileUnit())
+ if (isCompileUnit())
return DICompileUnit(DbgNode).getDirectory();
- else
- assert (0 && "Invalid DIScope!");
- return NULL;
+ if (isNameSpace())
+ return DINameSpace(DbgNode).getDirectory();
+ if (isType())
+ return DIType(DbgNode).getDirectory();
+ if (isFile())
+ return DIFile(DbgNode).getDirectory();
+ assert(0 && "Invalid DIScope!");
+ return StringRef();
}
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
-/// dump - Print descriptor.
-void DIDescriptor::dump() const {
- errs() << "[" << dwarf::TagString(getTag()) << "] ";
- errs().write_hex((intptr_t) &*DbgNode) << ']';
+/// print - Print descriptor.
+void DIDescriptor::print(raw_ostream &OS) const {
+ OS << "[" << dwarf::TagString(getTag()) << "] ";
+ OS.write_hex((intptr_t) &*DbgNode) << ']';
}
-/// dump - Print compile unit.
-void DICompileUnit::dump() const {
+/// print - Print compile unit.
+void DICompileUnit::print(raw_ostream &OS) const {
if (getLanguage())
- errs() << " [" << dwarf::LanguageString(getLanguage()) << "] ";
+ OS << " [" << dwarf::LanguageString(getLanguage()) << "] ";
- errs() << " [" << getDirectory() << "/" << getFilename() << " ]";
+ OS << " [" << getDirectory() << "/" << getFilename() << "]";
}
-/// dump - Print type.
-void DIType::dump() const {
- if (isNull()) return;
+/// print - Print type.
+void DIType::print(raw_ostream &OS) const {
+ if (!DbgNode) return;
- if (const char *Res = getName())
- errs() << " [" << Res << "] ";
+ StringRef Res = getName();
+ if (!Res.empty())
+ OS << " [" << Res << "] ";
unsigned Tag = getTag();
- errs() << " [" << dwarf::TagString(Tag) << "] ";
+ OS << " [" << dwarf::TagString(Tag) << "] ";
// TODO : Print context
- getCompileUnit().dump();
- errs() << " ["
- << getLineNumber() << ", "
- << getSizeInBits() << ", "
- << getAlignInBits() << ", "
- << getOffsetInBits()
+ getCompileUnit().print(OS);
+ OS << " ["
+ << "line " << getLineNumber() << ", "
+ << getSizeInBits() << " bits, "
+ << getAlignInBits() << " bit alignment, "
+ << getOffsetInBits() << " bit offset"
<< "] ";
if (isPrivate())
- errs() << " [private] ";
+ OS << " [private] ";
else if (isProtected())
- errs() << " [protected] ";
+ OS << " [protected] ";
if (isForwardDecl())
- errs() << " [fwd] ";
+ OS << " [fwd] ";
if (isBasicType())
- DIBasicType(DbgNode).dump();
+ DIBasicType(DbgNode).print(OS);
else if (isDerivedType())
- DIDerivedType(DbgNode).dump();
+ DIDerivedType(DbgNode).print(OS);
else if (isCompositeType())
- DICompositeType(DbgNode).dump();
+ DICompositeType(DbgNode).print(OS);
else {
- errs() << "Invalid DIType\n";
+ OS << "Invalid DIType\n";
return;
}
- errs() << "\n";
+ OS << "\n";
}
-/// dump - Print basic type.
-void DIBasicType::dump() const {
- errs() << " [" << dwarf::AttributeEncodingString(getEncoding()) << "] ";
+/// print - Print basic type.
+void DIBasicType::print(raw_ostream &OS) const {
+ OS << " [" << dwarf::AttributeEncodingString(getEncoding()) << "] ";
}
-/// dump - Print derived type.
-void DIDerivedType::dump() const {
- errs() << "\n\t Derived From: "; getTypeDerivedFrom().dump();
+/// print - Print derived type.
+void DIDerivedType::print(raw_ostream &OS) const {
+ OS << "\n\t Derived From: "; getTypeDerivedFrom().print(OS);
}
-/// dump - Print composite type.
-void DICompositeType::dump() const {
+/// print - Print composite type.
+void DICompositeType::print(raw_ostream &OS) const {
DIArray A = getTypeArray();
- if (A.isNull())
- return;
- errs() << " [" << A.getNumElements() << " elements]";
+ OS << " [" << A.getNumElements() << " elements]";
}
-/// dump - Print global.
-void DIGlobal::dump() const {
- if (const char *Res = getName())
- errs() << " [" << Res << "] ";
+/// print - Print subprogram.
+void DISubprogram::print(raw_ostream &OS) const {
+ StringRef Res = getName();
+ if (!Res.empty())
+ OS << " [" << Res << "] ";
unsigned Tag = getTag();
- errs() << " [" << dwarf::TagString(Tag) << "] ";
+ OS << " [" << dwarf::TagString(Tag) << "] ";
// TODO : Print context
- getCompileUnit().dump();
- errs() << " [" << getLineNumber() << "] ";
+ getCompileUnit().print(OS);
+ OS << " [" << getLineNumber() << "] ";
if (isLocalToUnit())
- errs() << " [local] ";
+ OS << " [local] ";
if (isDefinition())
- errs() << " [def] ";
-
- if (isGlobalVariable())
- DIGlobalVariable(DbgNode).dump();
+ OS << " [def] ";
- errs() << "\n";
+ OS << "\n";
}
-/// dump - Print subprogram.
-void DISubprogram::dump() const {
- if (const char *Res = getName())
- errs() << " [" << Res << "] ";
+/// print - Print global variable.
+void DIGlobalVariable::print(raw_ostream &OS) const {
+ OS << " [";
+ StringRef Res = getName();
+ if (!Res.empty())
+ OS << " [" << Res << "] ";
unsigned Tag = getTag();
- errs() << " [" << dwarf::TagString(Tag) << "] ";
+ OS << " [" << dwarf::TagString(Tag) << "] ";
// TODO : Print context
- getCompileUnit().dump();
- errs() << " [" << getLineNumber() << "] ";
+ getCompileUnit().print(OS);
+ OS << " [" << getLineNumber() << "] ";
if (isLocalToUnit())
- errs() << " [local] ";
+ OS << " [local] ";
if (isDefinition())
- errs() << " [def] ";
+ OS << " [def] ";
+
+ if (isGlobalVariable())
+ DIGlobalVariable(DbgNode).print(OS);
+ OS << "]\n";
+}
+
+/// print - Print variable.
+void DIVariable::print(raw_ostream &OS) const {
+ StringRef Res = getName();
+ if (!Res.empty())
+ OS << " [" << Res << "] ";
+
+ getCompileUnit().print(OS);
+ OS << " [" << getLineNumber() << "] ";
+ getType().print(OS);
+ OS << "\n";
- errs() << "\n";
+ // FIXME: Dump complex addresses
+}
+
+/// dump - Print descriptor to dbgs() with a newline.
+void DIDescriptor::dump() const {
+ print(dbgs()); dbgs() << '\n';
+}
+
+/// dump - Print compile unit to dbgs() with a newline.
+void DICompileUnit::dump() const {
+ print(dbgs()); dbgs() << '\n';
+}
+
+/// dump - Print type to dbgs() with a newline.
+void DIType::dump() const {
+ print(dbgs()); dbgs() << '\n';
+}
+
+/// dump - Print basic type to dbgs() with a newline.
+void DIBasicType::dump() const {
+ print(dbgs()); dbgs() << '\n';
+}
+
+/// dump - Print derived type to dbgs() with a newline.
+void DIDerivedType::dump() const {
+ print(dbgs()); dbgs() << '\n';
+}
+
+/// dump - Print composite type to dbgs() with a newline.
+void DICompositeType::dump() const {
+ print(dbgs()); dbgs() << '\n';
+}
+
+/// dump - Print subprogram to dbgs() with a newline.
+void DISubprogram::dump() const {
+ print(dbgs()); dbgs() << '\n';
}
/// dump - Print global variable.
void DIGlobalVariable::dump() const {
- errs() << " [";
- getGlobal()->dump();
- errs() << "] ";
+ print(dbgs()); dbgs() << '\n';
}
/// dump - Print variable.
void DIVariable::dump() const {
- if (const char *Res = getName())
- errs() << " [" << Res << "] ";
-
- getCompileUnit().dump();
- errs() << " [" << getLineNumber() << "] ";
- getType().dump();
- errs() << "\n";
-
- // FIXME: Dump complex addresses
+ print(dbgs()); dbgs() << '\n';
}
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
DIFactory::DIFactory(Module &m)
- : M(m), VMContext(M.getContext()), DeclareFn(0) {
- EmptyStructPtr = PointerType::getUnqual(StructType::get(VMContext));
-}
+ : M(m), VMContext(M.getContext()), DeclareFn(0), ValueFn(0) {}
Constant *DIFactory::GetTagConstant(unsigned TAG) {
assert((TAG & LLVMDebugVersionMask) == 0 &&
Elts.push_back(llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)));
else
for (unsigned i = 0; i != NumTys; ++i)
- Elts.push_back(Tys[i].getNode());
+ Elts.push_back(Tys[i]);
return DIArray(MDNode::get(VMContext,Elts.data(), Elts.size()));
}
/// CreateCompileUnit - Create a new descriptor for the specified compile
/// unit. Note that this does not unique compile units within the module.
DICompileUnit DIFactory::CreateCompileUnit(unsigned LangID,
- const char * Filename,
- const char * Directory,
- const char * Producer,
+ StringRef Filename,
+ StringRef Directory,
+ StringRef Producer,
bool isMain,
bool isOptimized,
- const char *Flags,
+ StringRef Flags,
unsigned RunTimeVer) {
Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_compile_unit),
return DICompileUnit(MDNode::get(VMContext, &Elts[0], 10));
}
+/// CreateFile - Create a new descriptor for the specified file.
+DIFile DIFactory::CreateFile(StringRef Filename,
+ StringRef Directory,
+ DICompileUnit CU) {
+ Value *Elts[] = {
+ GetTagConstant(dwarf::DW_TAG_file_type),
+ MDString::get(VMContext, Filename),
+ MDString::get(VMContext, Directory),
+ CU
+ };
+
+ return DIFile(MDNode::get(VMContext, &Elts[0], 4));
+}
+
/// CreateEnumerator - Create a single enumerator value.
-DIEnumerator DIFactory::CreateEnumerator(const char * Name, uint64_t Val){
+DIEnumerator DIFactory::CreateEnumerator(StringRef Name, uint64_t Val){
Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_enumerator),
MDString::get(VMContext, Name),
/// CreateBasicType - Create a basic type like int, float, etc.
DIBasicType DIFactory::CreateBasicType(DIDescriptor Context,
- const char * Name,
- DICompileUnit CompileUnit,
+ StringRef Name,
+ DIFile F,
unsigned LineNumber,
uint64_t SizeInBits,
uint64_t AlignInBits,
unsigned Encoding) {
Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_base_type),
- Context.getNode(),
+ Context,
MDString::get(VMContext, Name),
- CompileUnit.getNode(),
+ F,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
/// CreateBasicType - Create a basic type like int, float, etc.
DIBasicType DIFactory::CreateBasicTypeEx(DIDescriptor Context,
- const char * Name,
- DICompileUnit CompileUnit,
+ StringRef Name,
+ DIFile F,
unsigned LineNumber,
Constant *SizeInBits,
Constant *AlignInBits,
unsigned Encoding) {
Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_base_type),
- Context.getNode(),
+ Context,
MDString::get(VMContext, Name),
- CompileUnit.getNode(),
+ F,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
SizeInBits,
AlignInBits,
return DIBasicType(MDNode::get(VMContext, &Elts[0], 10));
}
+/// CreateArtificialType - Create a new DIType with "artificial" flag set.
+DIType DIFactory::CreateArtificialType(DIType Ty) {
+ if (Ty.isArtificial())
+ return Ty;
+
+ SmallVector<Value *, 9> Elts;
+ MDNode *N = Ty;
+ assert (N && "Unexpected input DIType!");
+ for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
+ if (Value *V = N->getOperand(i))
+ Elts.push_back(V);
+ else
+ Elts.push_back(Constant::getNullValue(Type::getInt32Ty(VMContext)));
+ }
+
+ unsigned CurFlags = Ty.getFlags();
+ CurFlags = CurFlags | DIType::FlagArtificial;
+
+ // Flags are stored at this slot.
+ Elts[8] = ConstantInt::get(Type::getInt32Ty(VMContext), CurFlags);
+
+ return DIType(MDNode::get(VMContext, Elts.data(), Elts.size()));
+}
/// CreateDerivedType - Create a derived type like const qualified type,
/// pointer, typedef, etc.
DIDerivedType DIFactory::CreateDerivedType(unsigned Tag,
DIDescriptor Context,
- const char * Name,
- DICompileUnit CompileUnit,
+ StringRef Name,
+ DIFile F,
unsigned LineNumber,
uint64_t SizeInBits,
uint64_t AlignInBits,
DIType DerivedFrom) {
Value *Elts[] = {
GetTagConstant(Tag),
- Context.getNode(),
+ Context,
MDString::get(VMContext, Name),
- CompileUnit.getNode(),
+ F,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits),
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
- DerivedFrom.getNode(),
+ DerivedFrom,
};
return DIDerivedType(MDNode::get(VMContext, &Elts[0], 10));
}
/// pointer, typedef, etc.
DIDerivedType DIFactory::CreateDerivedTypeEx(unsigned Tag,
DIDescriptor Context,
- const char * Name,
- DICompileUnit CompileUnit,
+ StringRef Name,
+ DIFile F,
unsigned LineNumber,
Constant *SizeInBits,
Constant *AlignInBits,
DIType DerivedFrom) {
Value *Elts[] = {
GetTagConstant(Tag),
- Context.getNode(),
+ Context,
MDString::get(VMContext, Name),
- CompileUnit.getNode(),
+ F,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
SizeInBits,
AlignInBits,
OffsetInBits,
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
- DerivedFrom.getNode(),
+ DerivedFrom,
};
return DIDerivedType(MDNode::get(VMContext, &Elts[0], 10));
}
/// CreateCompositeType - Create a composite type like array, struct, etc.
DICompositeType DIFactory::CreateCompositeType(unsigned Tag,
DIDescriptor Context,
- const char * Name,
- DICompileUnit CompileUnit,
+ StringRef Name,
+ DIFile F,
unsigned LineNumber,
uint64_t SizeInBits,
uint64_t AlignInBits,
unsigned Flags,
DIType DerivedFrom,
DIArray Elements,
- unsigned RuntimeLang) {
+ unsigned RuntimeLang,
+ MDNode *ContainingType) {
Value *Elts[] = {
GetTagConstant(Tag),
- Context.getNode(),
+ Context,
MDString::get(VMContext, Name),
- CompileUnit.getNode(),
+ F,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits),
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
- DerivedFrom.getNode(),
- Elements.getNode(),
- ConstantInt::get(Type::getInt32Ty(VMContext), RuntimeLang)
+ DerivedFrom,
+ Elements,
+ ConstantInt::get(Type::getInt32Ty(VMContext), RuntimeLang),
+ ContainingType
};
- return DICompositeType(MDNode::get(VMContext, &Elts[0], 12));
+ return DICompositeType(MDNode::get(VMContext, &Elts[0], 13));
}
/// CreateCompositeType - Create a composite type like array, struct, etc.
DICompositeType DIFactory::CreateCompositeTypeEx(unsigned Tag,
DIDescriptor Context,
- const char * Name,
- DICompileUnit CompileUnit,
+ StringRef Name,
+ DIFile F,
unsigned LineNumber,
Constant *SizeInBits,
Constant *AlignInBits,
Value *Elts[] = {
GetTagConstant(Tag),
- Context.getNode(),
+ Context,
MDString::get(VMContext, Name),
- CompileUnit.getNode(),
+ F,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
SizeInBits,
AlignInBits,
OffsetInBits,
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
- DerivedFrom.getNode(),
- Elements.getNode(),
+ DerivedFrom,
+ Elements,
ConstantInt::get(Type::getInt32Ty(VMContext), RuntimeLang)
};
return DICompositeType(MDNode::get(VMContext, &Elts[0], 12));
/// See comments in DISubprogram for descriptions of these fields. This
/// method does not unique the generated descriptors.
DISubprogram DIFactory::CreateSubprogram(DIDescriptor Context,
- const char * Name,
- const char * DisplayName,
- const char * LinkageName,
- DICompileUnit CompileUnit,
- unsigned LineNo, DIType Type,
+ StringRef Name,
+ StringRef DisplayName,
+ StringRef LinkageName,
+ DIFile F,
+ unsigned LineNo, DIType Ty,
bool isLocalToUnit,
- bool isDefinition) {
+ bool isDefinition,
+ unsigned VK, unsigned VIndex,
+ DIType ContainingType,
+ bool isArtificial,
+ bool isOptimized,
+ Function *Fn) {
Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_subprogram),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
- Context.getNode(),
+ Context,
MDString::get(VMContext, Name),
MDString::get(VMContext, DisplayName),
MDString::get(VMContext, LinkageName),
- CompileUnit.getNode(),
+ F,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
- Type.getNode(),
+ Ty,
ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
- ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition)
+ ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
+ ConstantInt::get(Type::getInt32Ty(VMContext), (unsigned)VK),
+ ConstantInt::get(Type::getInt32Ty(VMContext), VIndex),
+ ContainingType,
+ ConstantInt::get(Type::getInt1Ty(VMContext), isArtificial),
+ ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
+ Fn
+ };
+ MDNode *Node = MDNode::get(VMContext, &Elts[0], 17);
+
+ // Create a named metadata so that we do not lose this mdnode.
+ NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.sp");
+ NMD->addOperand(Node);
+ return DISubprogram(Node);
+}
+
+/// CreateSubprogramDefinition - Create new subprogram descriptor for the
+/// given declaration.
+DISubprogram DIFactory::CreateSubprogramDefinition(DISubprogram &SPDeclaration) {
+ if (SPDeclaration.isDefinition())
+ return DISubprogram(SPDeclaration);
+
+ MDNode *DeclNode = SPDeclaration;
+ Value *Elts[] = {
+ GetTagConstant(dwarf::DW_TAG_subprogram),
+ llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+ DeclNode->getOperand(2), // Context
+ DeclNode->getOperand(3), // Name
+ DeclNode->getOperand(4), // DisplayName
+ DeclNode->getOperand(5), // LinkageName
+ DeclNode->getOperand(6), // CompileUnit
+ DeclNode->getOperand(7), // LineNo
+ DeclNode->getOperand(8), // Type
+ DeclNode->getOperand(9), // isLocalToUnit
+ ConstantInt::get(Type::getInt1Ty(VMContext), true),
+ DeclNode->getOperand(11), // Virtuality
+ DeclNode->getOperand(12), // VIndex
+ DeclNode->getOperand(13), // Containting Type
+ DeclNode->getOperand(14), // isArtificial
+ DeclNode->getOperand(15), // isOptimized
+ SPDeclaration.getFunction()
};
- return DISubprogram(MDNode::get(VMContext, &Elts[0], 11));
+ MDNode *Node =MDNode::get(VMContext, &Elts[0], 16);
+
+ // Create a named metadata so that we do not lose this mdnode.
+ NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.sp");
+ NMD->addOperand(Node);
+ return DISubprogram(Node);
}
/// CreateGlobalVariable - Create a new descriptor for the specified global.
DIGlobalVariable
-DIFactory::CreateGlobalVariable(DIDescriptor Context, const char * Name,
- const char * DisplayName,
- const char * LinkageName,
- DICompileUnit CompileUnit,
- unsigned LineNo, DIType Type,bool isLocalToUnit,
+DIFactory::CreateGlobalVariable(DIDescriptor Context, StringRef Name,
+ StringRef DisplayName,
+ StringRef LinkageName,
+ DIFile F,
+ unsigned LineNo, DIType Ty,bool isLocalToUnit,
bool isDefinition, llvm::GlobalVariable *Val) {
Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_variable),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
- Context.getNode(),
+ Context,
MDString::get(VMContext, Name),
MDString::get(VMContext, DisplayName),
MDString::get(VMContext, LinkageName),
- CompileUnit.getNode(),
+ F,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
- Type.getNode(),
+ Ty,
ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
Val
// Create a named metadata so that we do not lose this mdnode.
NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.gv");
- NMD->addElement(Node);
+ NMD->addOperand(Node);
return DIGlobalVariable(Node);
}
/// CreateVariable - Create a new descriptor for the specified variable.
DIVariable DIFactory::CreateVariable(unsigned Tag, DIDescriptor Context,
- const char * Name,
- DICompileUnit CompileUnit, unsigned LineNo,
- DIType Type) {
+ StringRef Name,
+ DIFile F,
+ unsigned LineNo,
+ DIType Ty, bool AlwaysPreserve) {
Value *Elts[] = {
GetTagConstant(Tag),
- Context.getNode(),
+ Context,
MDString::get(VMContext, Name),
- CompileUnit.getNode(),
+ F,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
- Type.getNode(),
+ Ty,
};
- return DIVariable(MDNode::get(VMContext, &Elts[0], 6));
+ MDNode *Node = MDNode::get(VMContext, &Elts[0], 6);
+ if (AlwaysPreserve) {
+ // The optimizer may remove local variable. If there is an interest
+ // to preserve variable info in such situation then stash it in a
+ // named mdnode.
+ DISubprogram Fn(getDISubprogram(Context));
+ StringRef FName = "fn";
+ if (Fn.getFunction())
+ FName = Fn.getFunction()->getName();
+ char One = '\1';
+ if (FName.startswith(StringRef(&One, 1)))
+ FName = FName.substr(1);
+ NamedMDNode *FnLocals = M.getNamedMetadata(Twine("llvm.dbg.lv.", FName));
+ if (!FnLocals)
+ FnLocals = NamedMDNode::Create(VMContext, Twine("llvm.dbg.lv.", FName),
+ NULL, 0, &M);
+ FnLocals->addOperand(Node);
+ }
+ return DIVariable(Node);
}
/// which has a complex address expression for its address.
DIVariable DIFactory::CreateComplexVariable(unsigned Tag, DIDescriptor Context,
const std::string &Name,
- DICompileUnit CompileUnit,
+ DIFile F,
unsigned LineNo,
- DIType Type, SmallVector<Value *, 9> &addr) {
+ DIType Ty,
+ SmallVector<Value *, 9> &addr) {
SmallVector<Value *, 9> Elts;
Elts.push_back(GetTagConstant(Tag));
- Elts.push_back(Context.getNode());
+ Elts.push_back(Context);
Elts.push_back(MDString::get(VMContext, Name));
- Elts.push_back(CompileUnit.getNode());
+ Elts.push_back(F);
Elts.push_back(ConstantInt::get(Type::getInt32Ty(VMContext), LineNo));
- Elts.push_back(Type.getNode());
+ Elts.push_back(Ty);
Elts.insert(Elts.end(), addr.begin(), addr.end());
return DIVariable(MDNode::get(VMContext, &Elts[0], 6+addr.size()));
/// CreateBlock - This creates a descriptor for a lexical block with the
/// specified parent VMContext.
-DILexicalBlock DIFactory::CreateLexicalBlock(DIDescriptor Context) {
+DILexicalBlock DIFactory::CreateLexicalBlock(DIDescriptor Context,
+ DIFile F, unsigned LineNo,
+ unsigned Col) {
+ // Defeat MDNode uniqing for lexical blocks.
+ static unsigned int unique_id = 0;
Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_lexical_block),
- Context.getNode()
+ Context,
+ ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
+ ConstantInt::get(Type::getInt32Ty(VMContext), Col),
+ F,
+ ConstantInt::get(Type::getInt32Ty(VMContext), unique_id++)
+ };
+ return DILexicalBlock(MDNode::get(VMContext, &Elts[0], 6));
+}
+
+/// CreateNameSpace - This creates new descriptor for a namespace
+/// with the specified parent context.
+DINameSpace DIFactory::CreateNameSpace(DIDescriptor Context, StringRef Name,
+ DIFile F,
+ unsigned LineNo) {
+ Value *Elts[] = {
+ GetTagConstant(dwarf::DW_TAG_namespace),
+ Context,
+ MDString::get(VMContext, Name),
+ F,
+ ConstantInt::get(Type::getInt32Ty(VMContext), LineNo)
};
- return DILexicalBlock(MDNode::get(VMContext, &Elts[0], 2));
+ return DINameSpace(MDNode::get(VMContext, &Elts[0], 5));
}
/// CreateLocation - Creates a debug info location.
Value *Elts[] = {
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
ConstantInt::get(Type::getInt32Ty(VMContext), ColumnNo),
- S.getNode(),
- OrigLoc.getNode(),
+ S,
+ OrigLoc,
};
return DILocation(MDNode::get(VMContext, &Elts[0], 4));
}
-
//===----------------------------------------------------------------------===//
// DIFactory: Routines for inserting code into a function
//===----------------------------------------------------------------------===//
/// InsertDeclare - Insert a new llvm.dbg.declare intrinsic call.
Instruction *DIFactory::InsertDeclare(Value *Storage, DIVariable D,
- Instruction *InsertBefore) {
- // Cast the storage to a {}* for the call to llvm.dbg.declare.
- Storage = new BitCastInst(Storage, EmptyStructPtr, "", InsertBefore);
-
+ Instruction *InsertBefore) {
+ assert(Storage && "no storage passed to dbg.declare");
+ assert(D.Verify() && "empty DIVariable passed to dbg.declare");
if (!DeclareFn)
DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
- Value *Args[] = { Storage, D.getNode() };
+ Value *Args[] = { MDNode::get(Storage->getContext(), &Storage, 1),
+ D };
return CallInst::Create(DeclareFn, Args, Args+2, "", InsertBefore);
}
/// InsertDeclare - Insert a new llvm.dbg.declare intrinsic call.
Instruction *DIFactory::InsertDeclare(Value *Storage, DIVariable D,
- BasicBlock *InsertAtEnd) {
- // Cast the storage to a {}* for the call to llvm.dbg.declare.
- Storage = new BitCastInst(Storage, EmptyStructPtr, "", InsertAtEnd);
-
+ BasicBlock *InsertAtEnd) {
+ assert(Storage && "no storage passed to dbg.declare");
+ assert(D.Verify() && "invalid DIVariable passed to dbg.declare");
if (!DeclareFn)
DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
- Value *Args[] = { Storage, D.getNode() };
- return CallInst::Create(DeclareFn, Args, Args+2, "", InsertAtEnd);
-}
+ Value *Args[] = { MDNode::get(Storage->getContext(), &Storage, 1),
+ D };
+ // If this block already has a terminator then insert this intrinsic
+ // before the terminator.
+ if (TerminatorInst *T = InsertAtEnd->getTerminator())
+ return CallInst::Create(DeclareFn, Args, Args+2, "", T);
+ else
+ return CallInst::Create(DeclareFn, Args, Args+2, "", InsertAtEnd);}
+
+/// InsertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
+Instruction *DIFactory::InsertDbgValueIntrinsic(Value *V, uint64_t Offset,
+ DIVariable D,
+ Instruction *InsertBefore) {
+ assert(V && "no value passed to dbg.value");
+ assert(D.Verify() && "invalid DIVariable passed to dbg.value");
+ if (!ValueFn)
+ ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value);
+
+ Value *Args[] = { MDNode::get(V->getContext(), &V, 1),
+ ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset),
+ D };
+ return CallInst::Create(ValueFn, Args, Args+3, "", InsertBefore);
+}
+
+/// InsertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
+Instruction *DIFactory::InsertDbgValueIntrinsic(Value *V, uint64_t Offset,
+ DIVariable D,
+ BasicBlock *InsertAtEnd) {
+ assert(V && "no value passed to dbg.value");
+ assert(D.Verify() && "invalid DIVariable passed to dbg.value");
+ if (!ValueFn)
+ ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value);
+
+ Value *Args[] = { MDNode::get(V->getContext(), &V, 1),
+ ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset),
+ D };
+ return CallInst::Create(ValueFn, Args, Args+3, "", InsertAtEnd);
+}
//===----------------------------------------------------------------------===//
// DebugInfoFinder implementations.
/// processModule - Process entire module and collect debug info.
void DebugInfoFinder::processModule(Module &M) {
-
- MetadataContext &TheMetadata = M.getContext().getMetadata();
- unsigned MDDbgKind = TheMetadata.getMDKind("dbg");
-
for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
for (Function::iterator FI = (*I).begin(), FE = (*I).end(); FI != FE; ++FI)
for (BasicBlock::iterator BI = (*FI).begin(), BE = (*FI).end(); BI != BE;
++BI) {
if (DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(BI))
processDeclare(DDI);
- else if (MDDbgKind)
- if (MDNode *L = TheMetadata.getMD(MDDbgKind, BI))
- processLocation(DILocation(L));
+
+ DebugLoc Loc = BI->getDebugLoc();
+ if (Loc.isUnknown())
+ continue;
+
+ LLVMContext &Ctx = BI->getContext();
+ DIDescriptor Scope(Loc.getScope(Ctx));
+
+ if (Scope.isCompileUnit())
+ addCompileUnit(DICompileUnit(Scope));
+ else if (Scope.isSubprogram())
+ processSubprogram(DISubprogram(Scope));
+ else if (Scope.isLexicalBlock())
+ processLexicalBlock(DILexicalBlock(Scope));
+
+ if (MDNode *IA = Loc.getInlinedAt(Ctx))
+ processLocation(DILocation(IA));
}
- NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.gv");
- if (!NMD)
- return;
-
- for (unsigned i = 0, e = NMD->getNumElements(); i != e; ++i) {
- DIGlobalVariable DIG(cast<MDNode>(NMD->getElement(i)));
- if (addGlobalVariable(DIG)) {
- addCompileUnit(DIG.getCompileUnit());
- processType(DIG.getType());
+ if (NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.gv")) {
+ for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
+ DIGlobalVariable DIG(cast<MDNode>(NMD->getOperand(i)));
+ if (addGlobalVariable(DIG)) {
+ addCompileUnit(DIG.getCompileUnit());
+ processType(DIG.getType());
+ }
}
}
+
+ if (NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.sp"))
+ for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i)
+ processSubprogram(DISubprogram(NMD->getOperand(i)));
}
/// processLocation - Process DILocation.
void DebugInfoFinder::processLocation(DILocation Loc) {
- if (Loc.isNull()) return;
- DIScope S(Loc.getScope().getNode());
- if (S.isNull()) return;
+ if (!Loc.Verify()) return;
+ DIDescriptor S(Loc.getScope());
if (S.isCompileUnit())
- addCompileUnit(DICompileUnit(S.getNode()));
+ addCompileUnit(DICompileUnit(S));
else if (S.isSubprogram())
- processSubprogram(DISubprogram(S.getNode()));
+ processSubprogram(DISubprogram(S));
else if (S.isLexicalBlock())
- processLexicalBlock(DILexicalBlock(S.getNode()));
+ processLexicalBlock(DILexicalBlock(S));
processLocation(Loc.getOrigLocation());
}
addCompileUnit(DT.getCompileUnit());
if (DT.isCompositeType()) {
- DICompositeType DCT(DT.getNode());
+ DICompositeType DCT(DT);
processType(DCT.getTypeDerivedFrom());
DIArray DA = DCT.getTypeArray();
- if (!DA.isNull())
- for (unsigned i = 0, e = DA.getNumElements(); i != e; ++i) {
- DIDescriptor D = DA.getElement(i);
- DIType TypeE = DIType(D.getNode());
- if (!TypeE.isNull())
- processType(TypeE);
- else
- processSubprogram(DISubprogram(D.getNode()));
- }
+ for (unsigned i = 0, e = DA.getNumElements(); i != e; ++i) {
+ DIDescriptor D = DA.getElement(i);
+ if (D.isType())
+ processType(DIType(D));
+ else if (D.isSubprogram())
+ processSubprogram(DISubprogram(D));
+ }
} else if (DT.isDerivedType()) {
- DIDerivedType DDT(DT.getNode());
- if (!DDT.isNull())
- processType(DDT.getTypeDerivedFrom());
+ DIDerivedType DDT(DT);
+ processType(DDT.getTypeDerivedFrom());
}
}
/// processLexicalBlock
void DebugInfoFinder::processLexicalBlock(DILexicalBlock LB) {
- if (LB.isNull())
- return;
DIScope Context = LB.getContext();
if (Context.isLexicalBlock())
- return processLexicalBlock(DILexicalBlock(Context.getNode()));
+ return processLexicalBlock(DILexicalBlock(Context));
else
- return processSubprogram(DISubprogram(Context.getNode()));
+ return processSubprogram(DISubprogram(Context));
}
/// processSubprogram - Process DISubprogram.
void DebugInfoFinder::processSubprogram(DISubprogram SP) {
- if (SP.isNull())
- return;
if (!addSubprogram(SP))
return;
addCompileUnit(SP.getCompileUnit());
/// processDeclare - Process DbgDeclareInst.
void DebugInfoFinder::processDeclare(DbgDeclareInst *DDI) {
- DIVariable DV(cast<MDNode>(DDI->getVariable()));
- if (DV.isNull())
+ MDNode *N = dyn_cast<MDNode>(DDI->getVariable());
+ if (!N) return;
+
+ DIDescriptor DV(N);
+ if (!DV.isVariable())
return;
- if (!NodesSeen.insert(DV.getNode()))
+ if (!NodesSeen.insert(DV))
return;
- addCompileUnit(DV.getCompileUnit());
- processType(DV.getType());
+ addCompileUnit(DIVariable(N).getCompileUnit());
+ processType(DIVariable(N).getType());
}
/// addType - Add type into Tys.
bool DebugInfoFinder::addType(DIType DT) {
- if (DT.isNull())
+ if (!DT.isValid())
return false;
- if (!NodesSeen.insert(DT.getNode()))
+ if (!NodesSeen.insert(DT))
return false;
- TYs.push_back(DT.getNode());
+ TYs.push_back(DT);
return true;
}
/// addCompileUnit - Add compile unit into CUs.
bool DebugInfoFinder::addCompileUnit(DICompileUnit CU) {
- if (CU.isNull())
+ if (!CU.Verify())
return false;
- if (!NodesSeen.insert(CU.getNode()))
+ if (!NodesSeen.insert(CU))
return false;
- CUs.push_back(CU.getNode());
+ CUs.push_back(CU);
return true;
}
/// addGlobalVariable - Add global variable into GVs.
bool DebugInfoFinder::addGlobalVariable(DIGlobalVariable DIG) {
- if (DIG.isNull())
+ if (!DIDescriptor(DIG).isGlobalVariable())
return false;
- if (!NodesSeen.insert(DIG.getNode()))
+ if (!NodesSeen.insert(DIG))
return false;
- GVs.push_back(DIG.getNode());
+ GVs.push_back(DIG);
return true;
}
// addSubprogram - Add subprgoram into SPs.
bool DebugInfoFinder::addSubprogram(DISubprogram SP) {
- if (SP.isNull())
+ if (!DIDescriptor(SP).isSubprogram())
return false;
- if (!NodesSeen.insert(SP.getNode()))
+ if (!NodesSeen.insert(SP))
return false;
- SPs.push_back(SP.getNode());
+ SPs.push_back(SP);
return true;
}
-namespace llvm {
- /// findStopPoint - Find the stoppoint coressponding to this instruction, that
- /// is the stoppoint that dominates this instruction.
- const DbgStopPointInst *findStopPoint(const Instruction *Inst) {
- if (const DbgStopPointInst *DSI = dyn_cast<DbgStopPointInst>(Inst))
- return DSI;
-
- const BasicBlock *BB = Inst->getParent();
- BasicBlock::const_iterator I = Inst, B;
- while (BB) {
- B = BB->begin();
-
- // A BB consisting only of a terminator can't have a stoppoint.
- while (I != B) {
- --I;
- if (const DbgStopPointInst *DSI = dyn_cast<DbgStopPointInst>(I))
- return DSI;
- }
-
- // This BB didn't have a stoppoint: if there is only one predecessor, look
- // for a stoppoint there. We could use getIDom(), but that would require
- // dominator info.
- BB = I->getParent()->getUniquePredecessor();
- if (BB)
- I = BB->getTerminator();
- }
-
- return 0;
- }
-
- /// findBBStopPoint - Find the stoppoint corresponding to first real
- /// (non-debug intrinsic) instruction in this Basic Block, and return the
- /// stoppoint for it.
- const DbgStopPointInst *findBBStopPoint(const BasicBlock *BB) {
- for(BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I)
- if (const DbgStopPointInst *DSI = dyn_cast<DbgStopPointInst>(I))
- return DSI;
-
- // Fallback to looking for stoppoint of unique predecessor. Useful if this
- // BB contains no stoppoints, but unique predecessor does.
- BB = BB->getUniquePredecessor();
- if (BB)
- return findStopPoint(BB->getTerminator());
-
+/// Find the debug info descriptor corresponding to this global variable.
+static Value *findDbgGlobalDeclare(GlobalVariable *V) {
+ const Module *M = V->getParent();
+ NamedMDNode *NMD = M->getNamedMetadata("llvm.dbg.gv");
+ if (!NMD)
return 0;
- }
- Value *findDbgGlobalDeclare(GlobalVariable *V) {
- const Module *M = V->getParent();
- NamedMDNode *NMD = M->getNamedMetadata("llvm.dbg.gv");
- if (!NMD)
- return 0;
-
- for (unsigned i = 0, e = NMD->getNumElements(); i != e; ++i) {
- DIGlobalVariable DIG(cast_or_null<MDNode>(NMD->getElement(i)));
- if (DIG.isNull())
- continue;
- if (DIG.getGlobal() == V)
- return DIG.getNode();
- }
- return 0;
+ for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
+ DIDescriptor DIG(cast_or_null<MDNode>(NMD->getOperand(i)));
+ if (!DIG.isGlobalVariable())
+ continue;
+ if (DIGlobalVariable(DIG).getGlobal() == V)
+ return DIG;
}
+ return 0;
+}
- /// Finds the llvm.dbg.declare intrinsic corresponding to this value if any.
- /// It looks through pointer casts too.
- const DbgDeclareInst *findDbgDeclare(const Value *V, bool stripCasts) {
- if (stripCasts) {
- V = V->stripPointerCasts();
-
- // Look for the bitcast.
- for (Value::use_const_iterator I = V->use_begin(), E =V->use_end();
- I != E; ++I)
- if (isa<BitCastInst>(I)) {
- const DbgDeclareInst *DDI = findDbgDeclare(*I, false);
- if (DDI) return DDI;
- }
- return 0;
- }
-
- // Find llvm.dbg.declare among uses of the instruction.
- for (Value::use_const_iterator I = V->use_begin(), E =V->use_end();
- I != E; ++I)
- if (const DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(I))
- return DDI;
-
+/// Finds the llvm.dbg.declare intrinsic corresponding to this value if any.
+/// It looks through pointer casts too.
+static const DbgDeclareInst *findDbgDeclare(const Value *V) {
+ V = V->stripPointerCasts();
+
+ if (!isa<Instruction>(V) && !isa<Argument>(V))
return 0;
- }
-
-bool getLocationInfo(const Value *V, std::string &DisplayName,
- std::string &Type, unsigned &LineNo, std::string &File,
- std::string &Dir) {
- DICompileUnit Unit;
- DIType TypeD;
-
- if (GlobalVariable *GV = dyn_cast<GlobalVariable>(const_cast<Value*>(V))) {
- Value *DIGV = findDbgGlobalDeclare(GV);
- if (!DIGV) return false;
- DIGlobalVariable Var(cast<MDNode>(DIGV));
-
- if (const char *D = Var.getDisplayName())
- DisplayName = D;
- LineNo = Var.getLineNumber();
- Unit = Var.getCompileUnit();
- TypeD = Var.getType();
- } else {
- const DbgDeclareInst *DDI = findDbgDeclare(V);
- if (!DDI) return false;
- DIVariable Var(cast<MDNode>(DDI->getVariable()));
-
- if (const char *D = Var.getName())
- DisplayName = D;
- LineNo = Var.getLineNumber();
- Unit = Var.getCompileUnit();
- TypeD = Var.getType();
- }
-
- if (const char *T = TypeD.getName())
- Type = T;
- if (const char *F = Unit.getFilename())
- File = F;
- if (const char *D = Unit.getDirectory())
- Dir = D;
- return true;
- }
-
- /// isValidDebugInfoIntrinsic - Return true if SPI is a valid debug
- /// info intrinsic.
- bool isValidDebugInfoIntrinsic(DbgStopPointInst &SPI,
- CodeGenOpt::Level OptLev) {
- return DIDescriptor::ValidDebugInfo(SPI.getContext(), OptLev);
- }
-
- /// isValidDebugInfoIntrinsic - Return true if FSI is a valid debug
- /// info intrinsic.
- bool isValidDebugInfoIntrinsic(DbgFuncStartInst &FSI,
- CodeGenOpt::Level OptLev) {
- return DIDescriptor::ValidDebugInfo(FSI.getSubprogram(), OptLev);
- }
-
- /// isValidDebugInfoIntrinsic - Return true if RSI is a valid debug
- /// info intrinsic.
- bool isValidDebugInfoIntrinsic(DbgRegionStartInst &RSI,
- CodeGenOpt::Level OptLev) {
- return DIDescriptor::ValidDebugInfo(RSI.getContext(), OptLev);
- }
-
- /// isValidDebugInfoIntrinsic - Return true if REI is a valid debug
- /// info intrinsic.
- bool isValidDebugInfoIntrinsic(DbgRegionEndInst &REI,
- CodeGenOpt::Level OptLev) {
- return DIDescriptor::ValidDebugInfo(REI.getContext(), OptLev);
- }
-
+
+ const Function *F = NULL;
+ if (const Instruction *I = dyn_cast<Instruction>(V))
+ F = I->getParent()->getParent();
+ else if (const Argument *A = dyn_cast<Argument>(V))
+ F = A->getParent();
+
+ for (Function::const_iterator FI = F->begin(), FE = F->end(); FI != FE; ++FI)
+ for (BasicBlock::const_iterator BI = (*FI).begin(), BE = (*FI).end();
+ BI != BE; ++BI)
+ if (const DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(BI))
+ if (DDI->getAddress() == V)
+ return DDI;
- /// isValidDebugInfoIntrinsic - Return true if DI is a valid debug
- /// info intrinsic.
- bool isValidDebugInfoIntrinsic(DbgDeclareInst &DI,
- CodeGenOpt::Level OptLev) {
- return DIDescriptor::ValidDebugInfo(DI.getVariable(), OptLev);
- }
+ return 0;
+}
- /// ExtractDebugLocation - Extract debug location information
- /// from llvm.dbg.stoppoint intrinsic.
- DebugLoc ExtractDebugLocation(DbgStopPointInst &SPI,
- DebugLocTracker &DebugLocInfo) {
- DebugLoc DL;
- Value *Context = SPI.getContext();
-
- // If this location is already tracked then use it.
- DebugLocTuple Tuple(cast<MDNode>(Context), NULL, SPI.getLine(),
- SPI.getColumn());
- DenseMap<DebugLocTuple, unsigned>::iterator II
- = DebugLocInfo.DebugIdMap.find(Tuple);
- if (II != DebugLocInfo.DebugIdMap.end())
- return DebugLoc::get(II->second);
-
- // Add a new location entry.
- unsigned Id = DebugLocInfo.DebugLocations.size();
- DebugLocInfo.DebugLocations.push_back(Tuple);
- DebugLocInfo.DebugIdMap[Tuple] = Id;
-
- return DebugLoc::get(Id);
+bool llvm::getLocationInfo(const Value *V, std::string &DisplayName,
+ std::string &Type, unsigned &LineNo,
+ std::string &File, std::string &Dir) {
+ DICompileUnit Unit;
+ DIType TypeD;
+
+ if (GlobalVariable *GV = dyn_cast<GlobalVariable>(const_cast<Value*>(V))) {
+ Value *DIGV = findDbgGlobalDeclare(GV);
+ if (!DIGV) return false;
+ DIGlobalVariable Var(cast<MDNode>(DIGV));
+
+ StringRef D = Var.getDisplayName();
+ if (!D.empty())
+ DisplayName = D;
+ LineNo = Var.getLineNumber();
+ Unit = Var.getCompileUnit();
+ TypeD = Var.getType();
+ } else {
+ const DbgDeclareInst *DDI = findDbgDeclare(V);
+ if (!DDI) return false;
+ DIVariable Var(cast<MDNode>(DDI->getVariable()));
+
+ StringRef D = Var.getName();
+ if (!D.empty())
+ DisplayName = D;
+ LineNo = Var.getLineNumber();
+ Unit = Var.getCompileUnit();
+ TypeD = Var.getType();
}
- /// ExtractDebugLocation - Extract debug location information
- /// from DILocation.
- DebugLoc ExtractDebugLocation(DILocation &Loc,
- DebugLocTracker &DebugLocInfo) {
- DebugLoc DL;
- MDNode *Context = Loc.getScope().getNode();
- MDNode *InlinedLoc = NULL;
- if (!Loc.getOrigLocation().isNull())
- InlinedLoc = Loc.getOrigLocation().getNode();
- // If this location is already tracked then use it.
- DebugLocTuple Tuple(Context, InlinedLoc, Loc.getLineNumber(),
- Loc.getColumnNumber());
- DenseMap<DebugLocTuple, unsigned>::iterator II
- = DebugLocInfo.DebugIdMap.find(Tuple);
- if (II != DebugLocInfo.DebugIdMap.end())
- return DebugLoc::get(II->second);
-
- // Add a new location entry.
- unsigned Id = DebugLocInfo.DebugLocations.size();
- DebugLocInfo.DebugLocations.push_back(Tuple);
- DebugLocInfo.DebugIdMap[Tuple] = Id;
-
- return DebugLoc::get(Id);
- }
+ StringRef T = TypeD.getName();
+ if (!T.empty())
+ Type = T;
+ StringRef F = Unit.getFilename();
+ if (!F.empty())
+ File = F;
+ StringRef D = Unit.getDirectory();
+ if (!D.empty())
+ Dir = D;
+ return true;
+}
- /// ExtractDebugLocation - Extract debug location information
- /// from llvm.dbg.func_start intrinsic.
- DebugLoc ExtractDebugLocation(DbgFuncStartInst &FSI,
- DebugLocTracker &DebugLocInfo) {
- DebugLoc DL;
- Value *SP = FSI.getSubprogram();
-
- DISubprogram Subprogram(cast<MDNode>(SP));
- unsigned Line = Subprogram.getLineNumber();
- DICompileUnit CU(Subprogram.getCompileUnit());
-
- // If this location is already tracked then use it.
- DebugLocTuple Tuple(CU.getNode(), NULL, Line, /* Column */ 0);
- DenseMap<DebugLocTuple, unsigned>::iterator II
- = DebugLocInfo.DebugIdMap.find(Tuple);
- if (II != DebugLocInfo.DebugIdMap.end())
- return DebugLoc::get(II->second);
-
- // Add a new location entry.
- unsigned Id = DebugLocInfo.DebugLocations.size();
- DebugLocInfo.DebugLocations.push_back(Tuple);
- DebugLocInfo.DebugIdMap[Tuple] = Id;
-
- return DebugLoc::get(Id);
- }
+/// getDISubprogram - Find subprogram that is enclosing this scope.
+DISubprogram llvm::getDISubprogram(const MDNode *Scope) {
+ DIDescriptor D(Scope);
+ if (D.isSubprogram())
+ return DISubprogram(Scope);
+
+ if (D.isLexicalBlock())
+ return getDISubprogram(DILexicalBlock(Scope).getContext());
+
+ return DISubprogram();
+}
+
+/// getDICompositeType - Find underlying composite type.
+DICompositeType llvm::getDICompositeType(DIType T) {
+ if (T.isCompositeType())
+ return DICompositeType(T);
+
+ if (T.isDerivedType())
+ return getDICompositeType(DIDerivedType(T).getTypeDerivedFrom());
+
+ return DICompositeType();
}
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