#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/Support/Dwarf.h"
+#include "llvm/Support/DebugLoc.h"
#include "llvm/Support/Streams.h"
+
using namespace llvm;
+using namespace llvm::dwarf;
//===----------------------------------------------------------------------===//
// DIDescriptor
//===----------------------------------------------------------------------===//
-DIDescriptor::DIDescriptor(GlobalVariable *gv, unsigned RequiredTag) {
- GV = gv;
+/// ValidDebugInfo - Return true if V represents valid debug info value.
+bool DIDescriptor::ValidDebugInfo(Value *V, CodeGenOpt::Level OptLevel) {
+ if (!V)
+ return false;
+
+ GlobalVariable *GV = dyn_cast<GlobalVariable>(V->stripPointerCasts());
+ if (!GV)
+ return false;
+
+ if (!GV->hasInternalLinkage () && !GV->hasLinkOnceLinkage())
+ return false;
+
+ DIDescriptor DI(GV);
+
+ // 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(GV).Verify() && "Invalid DebugInfo value");
+ break;
+ case DW_TAG_compile_unit:
+ assert(DICompileUnit(GV).Verify() && "Invalid DebugInfo value");
+ break;
+ case DW_TAG_subprogram:
+ assert(DISubprogram(GV).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(GlobalVariable *GV, unsigned RequiredTag) {
+ DbgGV = GV;
- // If this is non-null, check to see if the Tag matches. If not, set to null.
+ // If this is non-null, check to see if the Tag matches. If not, set to null.
if (GV && getTag() != RequiredTag)
- GV = 0;
+ DbgGV = 0;
}
-const char *DIDescriptor::getStringField(unsigned Elt) const {
- if (GV == 0)
- return 0;
+const std::string &
+DIDescriptor::getStringField(unsigned Elt, std::string &Result) const {
+ if (DbgGV == 0) {
+ Result.clear();
+ return Result;
+ }
+
+ Constant *C = DbgGV->getInitializer();
+ if (C == 0 || Elt >= C->getNumOperands()) {
+ Result.clear();
+ return Result;
+ }
- Constant *C = GV->getInitializer();
- if (C == 0 || Elt >= C->getNumOperands())
- return 0;
-
// Fills in the string if it succeeds
- return GetConstantStringInfo(C->getOperand(Elt));
+ if (!GetConstantStringInfo(C->getOperand(Elt), Result))
+ Result.clear();
+
+ return Result;
}
uint64_t DIDescriptor::getUInt64Field(unsigned Elt) const {
- if (GV == 0) return 0;
- Constant *C = GV->getInitializer();
+ if (DbgGV == 0) return 0;
+
+ Constant *C = DbgGV->getInitializer();
if (C == 0 || Elt >= C->getNumOperands())
return 0;
+
if (ConstantInt *CI = dyn_cast<ConstantInt>(C->getOperand(Elt)))
return CI->getZExtValue();
return 0;
}
DIDescriptor DIDescriptor::getDescriptorField(unsigned Elt) const {
- if (GV == 0) return DIDescriptor();
- Constant *C = GV->getInitializer();
+ if (DbgGV == 0) return DIDescriptor();
+
+ Constant *C = DbgGV->getInitializer();
if (C == 0 || Elt >= C->getNumOperands())
return DIDescriptor();
+
C = C->getOperand(Elt);
return DIDescriptor(dyn_cast<GlobalVariable>(C->stripPointerCasts()));
}
GlobalVariable *DIDescriptor::getGlobalVariableField(unsigned Elt) const {
- if (GV == 0) return 0;
- Constant *C = GV->getInitializer();
+ if (DbgGV == 0) return 0;
+
+ Constant *C = DbgGV->getInitializer();
if (C == 0 || Elt >= C->getNumOperands())
return 0;
+
C = C->getOperand(Elt);
-
return dyn_cast<GlobalVariable>(C->stripPointerCasts());
}
-
-
//===----------------------------------------------------------------------===//
// Simple Descriptor Constructors and other Methods
//===----------------------------------------------------------------------===//
-DIAnchor::DIAnchor(GlobalVariable *GV)
- : DIDescriptor(GV, dwarf::DW_TAG_anchor) {}
-DIEnumerator::DIEnumerator(GlobalVariable *GV)
- : DIDescriptor(GV, dwarf::DW_TAG_enumerator) {}
-DISubrange::DISubrange(GlobalVariable *GV)
- : DIDescriptor(GV, dwarf::DW_TAG_subrange_type) {}
-DICompileUnit::DICompileUnit(GlobalVariable *GV)
- : DIDescriptor(GV, dwarf::DW_TAG_compile_unit) {}
-DIBasicType::DIBasicType(GlobalVariable *GV)
- : DIType(GV, dwarf::DW_TAG_base_type) {}
-DISubprogram::DISubprogram(GlobalVariable *GV)
- : DIGlobal(GV, dwarf::DW_TAG_subprogram) {}
-DIGlobalVariable::DIGlobalVariable(GlobalVariable *GV)
- : DIGlobal(GV, dwarf::DW_TAG_variable) {}
-DIBlock::DIBlock(GlobalVariable *GV)
- : DIDescriptor(GV, dwarf::DW_TAG_lexical_block) {}
-// needed by DIVariable::getType()
-DIType::DIType(GlobalVariable *gv) : DIDescriptor(gv) {
- if (!gv) return;
+// Needed by DIVariable::getType().
+DIType::DIType(GlobalVariable *GV) : DIDescriptor(GV) {
+ if (!GV) return;
unsigned tag = getTag();
if (tag != dwarf::DW_TAG_base_type && !DIDerivedType::isDerivedType(tag) &&
!DICompositeType::isCompositeType(tag))
- GV = 0;
+ DbgGV = 0;
}
/// isDerivedType - Return true if the specified tag is legal for
}
}
-DIDerivedType::DIDerivedType(GlobalVariable *GV) : DIType(GV, true, true) {
- if (GV && !isDerivedType(getTag()))
- GV = 0;
-}
-
/// isCompositeType - Return true if the specified tag is legal for
/// DICompositeType.
bool DIType::isCompositeType(unsigned TAG) {
case dwarf::DW_TAG_enumeration_type:
case dwarf::DW_TAG_vector_type:
case dwarf::DW_TAG_subroutine_type:
+ case dwarf::DW_TAG_class_type:
return true;
default:
return false;
}
}
-DICompositeType::DICompositeType(GlobalVariable *GV)
- : DIDerivedType(GV, true, true) {
- if (GV && !isCompositeType(getTag()))
- GV = 0;
-}
-
/// isVariable - Return true if the specified tag is legal for DIVariable.
bool DIVariable::isVariable(unsigned Tag) {
switch (Tag) {
}
}
-DIVariable::DIVariable(GlobalVariable *gv) : DIDescriptor(gv) {
- if (gv && !isVariable(getTag()))
- GV = 0;
-}
-
unsigned DIArray::getNumElements() const {
- assert (GV && "Invalid DIArray");
- Constant *C = GV->getInitializer();
+ assert (DbgGV && "Invalid DIArray");
+ Constant *C = DbgGV->getInitializer();
assert (C && "Invalid DIArray initializer");
return C->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())
+ return;
+
+ assert (!D.isNull() && "Can not replace with null");
+ getGV()->replaceAllUsesWith(D.getGV());
+ getGV()->eraseFromParent();
+}
+
/// Verify - Verify that a compile unit is well formed.
bool DICompileUnit::Verify() const {
if (isNull())
return false;
-
+ std::string Res;
+ if (getFilename(Res).empty())
+ return false;
// It is possible that directory and produce string is empty.
- return getFilename();
+ return true;
}
/// Verify - Verify that a type descriptor is well formed.
return false;
DICompileUnit CU = getCompileUnit();
- if (!CU.Verify())
+ if (!CU.isNull() && !CU.Verify())
return false;
DIType Ty = getType();
if (!Ty.Verify())
return false;
-
return true;
}
return BT.getSizeInBits();
}
+/// describes - Return true if this subprogram provides debugging
+/// information for the function F.
+bool DISubprogram::describes(const Function *F) {
+ assert (F && "Invalid function");
+ std::string Name;
+ getLinkageName(Name);
+ if (Name.empty())
+ getName(Name);
+ if (!Name.empty() && (strcmp(Name.c_str(), F->getNameStart()) == false))
+ return true;
+ return false;
+}
+
+//===----------------------------------------------------------------------===//
+// DIDescriptor: dump routines for all descriptors.
+//===----------------------------------------------------------------------===//
+
+
+/// dump - Print descriptor.
+void DIDescriptor::dump() const {
+ cerr << "[" << dwarf::TagString(getTag()) << "] ";
+ cerr << std::hex << "[GV:" << DbgGV << "]" << std::dec;
+}
+
+/// dump - Print compile unit.
+void DICompileUnit::dump() const {
+ if (getLanguage())
+ cerr << " [" << dwarf::LanguageString(getLanguage()) << "] ";
+
+ std::string Res1, Res2;
+ cerr << " [" << getDirectory(Res1) << "/" << getFilename(Res2) << " ]";
+}
+
+/// dump - Print type.
+void DIType::dump() const {
+ if (isNull()) return;
+
+ std::string Res;
+ if (!getName(Res).empty())
+ cerr << " [" << Res << "] ";
+
+ unsigned Tag = getTag();
+ cerr << " [" << dwarf::TagString(Tag) << "] ";
+
+ // TODO : Print context
+ getCompileUnit().dump();
+ cerr << " ["
+ << getLineNumber() << ", "
+ << getSizeInBits() << ", "
+ << getAlignInBits() << ", "
+ << getOffsetInBits()
+ << "] ";
+
+ if (isPrivate())
+ cerr << " [private] ";
+ else if (isProtected())
+ cerr << " [protected] ";
+
+ if (isForwardDecl())
+ cerr << " [fwd] ";
+
+ if (isBasicType(Tag))
+ DIBasicType(DbgGV).dump();
+ else if (isDerivedType(Tag))
+ DIDerivedType(DbgGV).dump();
+ else if (isCompositeType(Tag))
+ DICompositeType(DbgGV).dump();
+ else {
+ cerr << "Invalid DIType\n";
+ return;
+ }
+
+ cerr << "\n";
+}
+
+/// dump - Print basic type.
+void DIBasicType::dump() const {
+ cerr << " [" << dwarf::AttributeEncodingString(getEncoding()) << "] ";
+}
+
+/// dump - Print derived type.
+void DIDerivedType::dump() const {
+ cerr << "\n\t Derived From: "; getTypeDerivedFrom().dump();
+}
+
+/// dump - Print composite type.
+void DICompositeType::dump() const {
+ DIArray A = getTypeArray();
+ if (A.isNull())
+ return;
+ cerr << " [" << A.getNumElements() << " elements]";
+}
+
+/// dump - Print global.
+void DIGlobal::dump() const {
+ std::string Res;
+ if (!getName(Res).empty())
+ cerr << " [" << Res << "] ";
+
+ unsigned Tag = getTag();
+ cerr << " [" << dwarf::TagString(Tag) << "] ";
+
+ // TODO : Print context
+ getCompileUnit().dump();
+ cerr << " [" << getLineNumber() << "] ";
+
+ if (isLocalToUnit())
+ cerr << " [local] ";
+
+ if (isDefinition())
+ cerr << " [def] ";
+
+ if (isGlobalVariable(Tag))
+ DIGlobalVariable(DbgGV).dump();
+
+ cerr << "\n";
+}
+
+/// dump - Print subprogram.
+void DISubprogram::dump() const {
+ DIGlobal::dump();
+}
+
+/// dump - Print global variable.
+void DIGlobalVariable::dump() const {
+ cerr << " ["; getGlobal()->dump(); cerr << "] ";
+}
+
+/// dump - Print variable.
+void DIVariable::dump() const {
+ std::string Res;
+ if (!getName(Res).empty())
+ cerr << " [" << Res << "] ";
+
+ getCompileUnit().dump();
+ cerr << " [" << getLineNumber() << "] ";
+ getType().dump();
+ cerr << "\n";
+}
+
//===----------------------------------------------------------------------===//
// DIFactory: Basic Helpers
//===----------------------------------------------------------------------===//
-DIFactory::DIFactory(Module &m) : M(m) {
- StopPointFn = FuncStartFn = RegionStartFn = RegionEndFn = DeclareFn = 0;
- EmptyStructPtr = PointerType::getUnqual(StructType::get(NULL, NULL));
+DIFactory::DIFactory(Module &m)
+ : M(m), VMContext(M.getContext()), StopPointFn(0), FuncStartFn(0),
+ RegionStartFn(0), RegionEndFn(0),
+ DeclareFn(0) {
+ EmptyStructPtr = VMContext.getPointerTypeUnqual(VMContext.getStructType());
}
/// getCastToEmpty - Return this descriptor as a Constant* with type '{}*'.
/// This is only valid when the descriptor is non-null.
Constant *DIFactory::getCastToEmpty(DIDescriptor D) {
- if (D.isNull()) return Constant::getNullValue(EmptyStructPtr);
- return ConstantExpr::getBitCast(D.getGV(), EmptyStructPtr);
+ if (D.isNull()) return VMContext.getNullValue(EmptyStructPtr);
+ return VMContext.getConstantExprBitCast(D.getGV(), EmptyStructPtr);
}
Constant *DIFactory::GetTagConstant(unsigned TAG) {
// Return Constant if previously defined.
if (Slot) return Slot;
- const PointerType *DestTy = PointerType::getUnqual(Type::Int8Ty);
+ const PointerType *DestTy = VMContext.getPointerTypeUnqual(Type::Int8Ty);
- // If empty string then use a sbyte* null instead.
+ // If empty string then use a i8* null instead.
if (String.empty())
- return Slot = ConstantPointerNull::get(DestTy);
+ return Slot = VMContext.getConstantPointerNull(DestTy);
// Construct string as an llvm constant.
- Constant *ConstStr = ConstantArray::get(String);
+ Constant *ConstStr = VMContext.getConstantArray(String);
// Otherwise create and return a new string global.
- GlobalVariable *StrGV = new GlobalVariable(ConstStr->getType(), true,
+ GlobalVariable *StrGV = new GlobalVariable(M, ConstStr->getType(), true,
GlobalVariable::InternalLinkage,
- ConstStr, ".str", &M);
+ ConstStr, ".str");
StrGV->setSection("llvm.metadata");
- return Slot = ConstantExpr::getBitCast(StrGV, DestTy);
+ return Slot = VMContext.getConstantExprBitCast(StrGV, DestTy);
}
-/// GetOrCreateAnchor - Look up an anchor for the specified tag and name. If it
-/// already exists, return it. If not, create a new one and return it.
-DIAnchor DIFactory::GetOrCreateAnchor(unsigned TAG, const char *Name) {
- const Type *EltTy = StructType::get(Type::Int32Ty, Type::Int32Ty, NULL);
-
- // Otherwise, create the global or return it if already in the module.
- Constant *C = M.getOrInsertGlobal(Name, EltTy);
- assert(isa<GlobalVariable>(C) && "Incorrectly typed anchor?");
- GlobalVariable *GV = cast<GlobalVariable>(C);
-
- // If it has an initializer, it is already in the module.
- if (GV->hasInitializer())
- return SubProgramAnchor = DIAnchor(GV);
-
- GV->setLinkage(GlobalValue::LinkOnceAnyLinkage);
- GV->setSection("llvm.metadata");
- GV->setConstant(true);
- M.addTypeName("llvm.dbg.anchor.type", EltTy);
-
- // Otherwise, set the initializer.
- Constant *Elts[] = {
- GetTagConstant(dwarf::DW_TAG_anchor),
- ConstantInt::get(Type::Int32Ty, TAG)
- };
-
- GV->setInitializer(ConstantStruct::get(Elts, 2));
- return DIAnchor(GV);
-}
-
-
-
//===----------------------------------------------------------------------===//
// DIFactory: Primary Constructors
//===----------------------------------------------------------------------===//
-/// GetOrCreateCompileUnitAnchor - Return the anchor for compile units,
-/// creating a new one if there isn't already one in the module.
-DIAnchor DIFactory::GetOrCreateCompileUnitAnchor() {
- // If we already created one, just return it.
- if (!CompileUnitAnchor.isNull())
- return CompileUnitAnchor;
- return CompileUnitAnchor = GetOrCreateAnchor(dwarf::DW_TAG_compile_unit,
- "llvm.dbg.compile_units");
-}
-
-/// GetOrCreateSubprogramAnchor - Return the anchor for subprograms,
-/// creating a new one if there isn't already one in the module.
-DIAnchor DIFactory::GetOrCreateSubprogramAnchor() {
- // If we already created one, just return it.
- if (!SubProgramAnchor.isNull())
- return SubProgramAnchor;
- return SubProgramAnchor = GetOrCreateAnchor(dwarf::DW_TAG_subprogram,
- "llvm.dbg.subprograms");
-}
-
-/// GetOrCreateGlobalVariableAnchor - Return the anchor for globals,
-/// creating a new one if there isn't already one in the module.
-DIAnchor DIFactory::GetOrCreateGlobalVariableAnchor() {
- // If we already created one, just return it.
- if (!GlobalVariableAnchor.isNull())
- return GlobalVariableAnchor;
- return GlobalVariableAnchor = GetOrCreateAnchor(dwarf::DW_TAG_variable,
- "llvm.dbg.global_variables");
-}
-
/// GetOrCreateArray - Create an descriptor for an array of descriptors.
/// This implicitly uniques the arrays created.
DIArray DIFactory::GetOrCreateArray(DIDescriptor *Tys, unsigned NumTys) {
for (unsigned i = 0; i != NumTys; ++i)
Elts.push_back(getCastToEmpty(Tys[i]));
- Constant *Init = ConstantArray::get(ArrayType::get(EmptyStructPtr,
+ Constant *Init = VMContext.getConstantArray(VMContext.getArrayType(EmptyStructPtr,
Elts.size()),
- &Elts[0], Elts.size());
+ Elts.data(), Elts.size());
// If we already have this array, just return the uniqued version.
DIDescriptor &Entry = SimpleConstantCache[Init];
if (!Entry.isNull()) return DIArray(Entry.getGV());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
+ GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
GlobalValue::InternalLinkage,
- Init, "llvm.dbg.array", &M);
+ Init, "llvm.dbg.array");
GV->setSection("llvm.metadata");
Entry = DIDescriptor(GV);
return DIArray(GV);
ConstantInt::get(Type::Int64Ty, Hi)
};
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
+ Constant *Init = VMContext.getConstantStruct(Elts,
+ sizeof(Elts)/sizeof(Elts[0]));
// If we already have this range, just return the uniqued version.
DIDescriptor &Entry = SimpleConstantCache[Init];
M.addTypeName("llvm.dbg.subrange.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
+ GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
GlobalValue::InternalLinkage,
- Init, "llvm.dbg.subrange", &M);
+ Init, "llvm.dbg.subrange");
GV->setSection("llvm.metadata");
Entry = DIDescriptor(GV);
return DISubrange(GV);
unsigned RunTimeVer) {
Constant *Elts[] = {
GetTagConstant(dwarf::DW_TAG_compile_unit),
- getCastToEmpty(GetOrCreateCompileUnitAnchor()),
+ VMContext.getNullValue(EmptyStructPtr),
ConstantInt::get(Type::Int32Ty, LangID),
GetStringConstant(Filename),
GetStringConstant(Directory),
ConstantInt::get(Type::Int32Ty, RunTimeVer)
};
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
+ Constant *Init = VMContext.getConstantStruct(Elts,
+ sizeof(Elts)/sizeof(Elts[0]));
M.addTypeName("llvm.dbg.compile_unit.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.compile_unit", &M);
+ GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
+ GlobalValue::LinkOnceAnyLinkage,
+ Init, "llvm.dbg.compile_unit");
GV->setSection("llvm.metadata");
return DICompileUnit(GV);
}
ConstantInt::get(Type::Int64Ty, Val)
};
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
+ Constant *Init = VMContext.getConstantStruct(Elts,
+ sizeof(Elts)/sizeof(Elts[0]));
M.addTypeName("llvm.dbg.enumerator.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
+ GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
GlobalValue::InternalLinkage,
- Init, "llvm.dbg.enumerator", &M);
+ Init, "llvm.dbg.enumerator");
GV->setSection("llvm.metadata");
return DIEnumerator(GV);
}
/// CreateBasicType - Create a basic type like int, float, etc.
DIBasicType DIFactory::CreateBasicType(DIDescriptor Context,
- const std::string &Name,
+ const std::string &Name,
DICompileUnit CompileUnit,
unsigned LineNumber,
uint64_t SizeInBits,
ConstantInt::get(Type::Int32Ty, Encoding)
};
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
+ Constant *Init = VMContext.getConstantStruct(Elts,
+ sizeof(Elts)/sizeof(Elts[0]));
M.addTypeName("llvm.dbg.basictype.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
+ GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
GlobalValue::InternalLinkage,
- Init, "llvm.dbg.basictype", &M);
+ Init, "llvm.dbg.basictype");
GV->setSection("llvm.metadata");
return DIBasicType(GV);
}
getCastToEmpty(DerivedFrom)
};
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
+ Constant *Init = VMContext.getConstantStruct(Elts,
+ sizeof(Elts)/sizeof(Elts[0]));
M.addTypeName("llvm.dbg.derivedtype.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
+ GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
GlobalValue::InternalLinkage,
- Init, "llvm.dbg.derivedtype", &M);
+ Init, "llvm.dbg.derivedtype");
GV->setSection("llvm.metadata");
return DIDerivedType(GV);
}
ConstantInt::get(Type::Int32Ty, RuntimeLang)
};
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
+ Constant *Init = VMContext.getConstantStruct(Elts,
+ sizeof(Elts)/sizeof(Elts[0]));
M.addTypeName("llvm.dbg.composite.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
+ GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
GlobalValue::InternalLinkage,
- Init, "llvm.dbg.composite", &M);
+ Init, "llvm.dbg.composite");
GV->setSection("llvm.metadata");
return DICompositeType(GV);
}
Constant *Elts[] = {
GetTagConstant(dwarf::DW_TAG_subprogram),
- getCastToEmpty(GetOrCreateSubprogramAnchor()),
+ VMContext.getNullValue(EmptyStructPtr),
getCastToEmpty(Context),
GetStringConstant(Name),
GetStringConstant(DisplayName),
ConstantInt::get(Type::Int1Ty, isDefinition)
};
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
+ Constant *Init = VMContext.getConstantStruct(Elts,
+ sizeof(Elts)/sizeof(Elts[0]));
M.addTypeName("llvm.dbg.subprogram.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.subprogram", &M);
+ GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
+ GlobalValue::LinkOnceAnyLinkage,
+ Init, "llvm.dbg.subprogram");
GV->setSection("llvm.metadata");
return DISubprogram(GV);
}
bool isDefinition, llvm::GlobalVariable *Val) {
Constant *Elts[] = {
GetTagConstant(dwarf::DW_TAG_variable),
- getCastToEmpty(GetOrCreateGlobalVariableAnchor()),
+ VMContext.getNullValue(EmptyStructPtr),
getCastToEmpty(Context),
GetStringConstant(Name),
GetStringConstant(DisplayName),
getCastToEmpty(Type),
ConstantInt::get(Type::Int1Ty, isLocalToUnit),
ConstantInt::get(Type::Int1Ty, isDefinition),
- ConstantExpr::getBitCast(Val, EmptyStructPtr)
+ VMContext.getConstantExprBitCast(Val, EmptyStructPtr)
};
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
+ Constant *Init = VMContext.getConstantStruct(Elts,
+ sizeof(Elts)/sizeof(Elts[0]));
M.addTypeName("llvm.dbg.global_variable.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.global_variable", &M);
+ GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
+ GlobalValue::LinkOnceAnyLinkage,
+ Init, "llvm.dbg.global_variable");
GV->setSection("llvm.metadata");
return DIGlobalVariable(GV);
}
getCastToEmpty(Type)
};
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
+ Constant *Init = VMContext.getConstantStruct(Elts,
+ sizeof(Elts)/sizeof(Elts[0]));
M.addTypeName("llvm.dbg.variable.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
+ GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
GlobalValue::InternalLinkage,
- Init, "llvm.dbg.variable", &M);
+ Init, "llvm.dbg.variable");
GV->setSection("llvm.metadata");
return DIVariable(GV);
}
/// CreateBlock - This creates a descriptor for a lexical block with the
-/// specified parent context.
+/// specified parent VMContext.
DIBlock DIFactory::CreateBlock(DIDescriptor Context) {
Constant *Elts[] = {
GetTagConstant(dwarf::DW_TAG_lexical_block),
getCastToEmpty(Context)
};
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
+ Constant *Init = VMContext.getConstantStruct(Elts,
+ sizeof(Elts)/sizeof(Elts[0]));
M.addTypeName("llvm.dbg.block.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
+ GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
GlobalValue::InternalLinkage,
- Init, "llvm.dbg.block", &M);
+ Init, "llvm.dbg.block");
GV->setSection("llvm.metadata");
return DIBlock(GV);
}
// Invoke llvm.dbg.stoppoint
Value *Args[] = {
- llvm::ConstantInt::get(llvm::Type::Int32Ty, LineNo),
- llvm::ConstantInt::get(llvm::Type::Int32Ty, ColNo),
+ ConstantInt::get(llvm::Type::Int32Ty, LineNo),
+ ConstantInt::get(llvm::Type::Int32Ty, ColNo),
getCastToEmpty(CU)
};
CallInst::Create(StopPointFn, Args, Args+3, "", BB);
void DIFactory::InsertSubprogramStart(DISubprogram SP, BasicBlock *BB) {
// Lazily construct llvm.dbg.func.start.
if (!FuncStartFn)
- FuncStartFn = llvm::Intrinsic::getDeclaration(&M,
- llvm::Intrinsic::dbg_func_start);
+ FuncStartFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_func_start);
// Call llvm.dbg.func.start which also implicitly sets a stoppoint.
CallInst::Create(FuncStartFn, getCastToEmpty(SP), "", BB);
void DIFactory::InsertRegionStart(DIDescriptor D, BasicBlock *BB) {
// Lazily construct llvm.dbg.region.start function.
if (!RegionStartFn)
- RegionStartFn = llvm::Intrinsic::getDeclaration(&M,
- llvm::Intrinsic::dbg_region_start);
+ RegionStartFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_region_start);
+
// Call llvm.dbg.func.start.
CallInst::Create(RegionStartFn, getCastToEmpty(D), "", BB);
}
-
/// InsertRegionEnd - Insert a new llvm.dbg.region.end intrinsic call to
/// mark the end of a region for the specified scoping descriptor.
void DIFactory::InsertRegionEnd(DIDescriptor D, BasicBlock *BB) {
// Lazily construct llvm.dbg.region.end function.
if (!RegionEndFn)
- RegionEndFn = llvm::Intrinsic::getDeclaration(&M,
- llvm::Intrinsic::dbg_region_end);
-
+ RegionEndFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_region_end);
+
+ // Call llvm.dbg.region.end.
CallInst::Create(RegionEndFn, getCastToEmpty(D), "", BB);
}
/// InsertDeclare - Insert a new llvm.dbg.declare intrinsic call.
-void DIFactory::InsertDeclare(llvm::Value *Storage, DIVariable D,
- BasicBlock *BB) {
+void DIFactory::InsertDeclare(Value *Storage, DIVariable D, BasicBlock *BB) {
// Cast the storage to a {}* for the call to llvm.dbg.declare.
- Storage = new llvm::BitCastInst(Storage, EmptyStructPtr, "", BB);
+ Storage = new BitCastInst(Storage, EmptyStructPtr, "", BB);
if (!DeclareFn)
- DeclareFn = llvm::Intrinsic::getDeclaration(&M,
- llvm::Intrinsic::dbg_declare);
+ DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
+
Value *Args[] = { Storage, getCastToEmpty(D) };
CallInst::Create(DeclareFn, Args, Args+2, "", BB);
}
namespace llvm {
- /// Finds the stoppoint coressponding to this instruction, that is the
- /// stoppoint that dominates this instruction
- const DbgStopPointInst *findStopPoint(const Instruction *Inst)
- {
+ /// 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;
- do {
+ while (BB) {
B = BB->begin();
+
// A BB consisting only of a terminator can't have a stoppoint.
- if (I != B) {
- do {
- --I;
- if (const DbgStopPointInst *DSI = dyn_cast<DbgStopPointInst>(I))
- return DSI;
- } while (I != B);
+ 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.
+
+ // 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();
- } while (BB != 0);
+ }
+
return 0;
}
- /// Finds the stoppoint corresponding to first real (non-debug intrinsic)
- /// instruction in this Basic Block, and returns the stoppoint for it.
- const DbgStopPointInst *findBBStopPoint(const BasicBlock *BB)
- {
- for(BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I) {
+ /// 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.
+
+ // 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());
+
return 0;
}
- Value *findDbgGlobalDeclare(GlobalVariable *V)
- {
+ Value *findDbgGlobalDeclare(GlobalVariable *V) {
const Module *M = V->getParent();
+ LLVMContext& Context = M->getContext();
+
const Type *Ty = M->getTypeByName("llvm.dbg.global_variable.type");
- if (!Ty)
- return 0;
- Ty = PointerType::get(Ty, 0);
+ if (!Ty) return 0;
+
+ Ty = Context.getPointerType(Ty, 0);
Value *Val = V->stripPointerCasts();
- for (Value::use_iterator I = Val->use_begin(), E =Val->use_end();
+ for (Value::use_iterator I = Val->use_begin(), E = Val->use_end();
I != E; ++I) {
if (ConstantExpr *CE = dyn_cast<ConstantExpr>(I)) {
if (CE->getOpcode() == Instruction::BitCast) {
Value *VV = CE;
- while (VV->hasOneUse()) {
+
+ while (VV->hasOneUse())
VV = *VV->use_begin();
- }
+
if (VV->getType() == Ty)
return VV;
}
if (Val->getType() == Ty)
return Val;
+
return 0;
}
- /// Finds the dbg.declare intrinsic corresponding to this value if any.
+ /// 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)
- {
+ 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) {
+ I != E; ++I)
if (isa<BitCastInst>(I))
return findDbgDeclare(*I, false);
- }
+
return 0;
}
- // Find dbg.declare among uses of the instruction.
+ // 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) {
+ I != E; ++I)
if (const DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(I))
return DDI;
- }
+
return 0;
}
- bool getLocationInfo(const Value *V, std::string &DisplayName, std::string &Type,
- unsigned &LineNo, std::string &File, std::string &Dir) {
+ 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;
+ if (!DIGV) return false;
DIGlobalVariable Var(cast<GlobalVariable>(DIGV));
- const char *DN = Var.getDisplayName();
- if (DN)
- DisplayName = DN;
- else
- DisplayName.clear();
+
+ Var.getDisplayName(DisplayName);
LineNo = Var.getLineNumber();
Unit = Var.getCompileUnit();
TypeD = Var.getType();
} else {
const DbgDeclareInst *DDI = findDbgDeclare(V);
- if (!DDI)
- return false;
+ if (!DDI) return false;
DIVariable Var(cast<GlobalVariable>(DDI->getVariable()));
- const char *DN = Var.getName();
- if (DN)
- DisplayName = DN;
- else
- DisplayName.clear();
+
+ Var.getName(DisplayName);
LineNo = Var.getLineNumber();
Unit = Var.getCompileUnit();
TypeD = Var.getType();
}
- Type.clear();
- File.clear();
- Dir.clear();
- const char *Str = TypeD.getName();
- if (Str) Type = Str;
- Str = Unit.getFilename();
- if (Str) File = Str;
- Str = Unit.getDirectory();
- if (Str) Dir = Str;
+
+ TypeD.getName(Type);
+ Unit.getFilename(File);
+ Unit.getDirectory(Dir);
return true;
}
-}
-
-/// dump - print compile unit.
-void DICompileUnit::dump() const {
- if (getLanguage())
- cerr << " [" << dwarf::LanguageString(getLanguage()) << "] ";
-
- const char *Dir = getDirectory();
- const char *FN = getFilename();
- cerr << " [" << (Dir ? Dir : "") << "/" << (FN ? FN : "") << " ]";
-}
-
-/// dump - print type.
-void DIType::dump() const {
- if (isNull()) return;
-
- if (const char *N = getName())
- cerr << " [" << N << "] ";
-
- unsigned Tag = getTag();
- cerr << " [" << dwarf::TagString(Tag) << "] ";
-
- // TODO : Print context
- getCompileUnit().dump();
- cerr << " ["
- << getLineNumber() << ", "
- << getSizeInBits() << ", "
- << getAlignInBits() << ", "
- << getOffsetInBits()
- << "] ";
-
- if (isPrivate())
- cerr << " [private] ";
- else if (isProtected())
- cerr << " [protected] ";
- if (isForwardDecl())
- cerr << " [fwd] ";
-
- if (isBasicType(Tag))
- DIBasicType(GV).dump();
- else if (isDerivedType(Tag))
- DIDerivedType(GV).dump();
- else if (isCompositeType(Tag))
- DICompositeType(GV).dump();
- else {
- cerr << "Invalid DIType\n";
- return;
+ /// CollectDebugInfoAnchors - Collect debugging information anchors.
+ void CollectDebugInfoAnchors(Module &M,
+ SmallVector<GlobalVariable *, 2> &CUs,
+ SmallVector<GlobalVariable *, 4> &GVs,
+ SmallVector<GlobalVariable *, 4> &SPs) {
+
+ for (Module::global_iterator GVI = M.global_begin(), E = M.global_end();
+ GVI != E; GVI++) {
+ GlobalVariable *GV = GVI;
+ if (GV->hasName() && strncmp(GV->getNameStart(), "llvm.dbg", 8) == 0
+ && GV->isConstant() && GV->hasInitializer()) {
+ DICompileUnit C(GV);
+ if (C.isNull() == false) {
+ CUs.push_back(GV);
+ continue;
+ }
+ DIGlobalVariable G(GV);
+ if (G.isNull() == false) {
+ GVs.push_back(GV);
+ continue;
+ }
+ DISubprogram S(GV);
+ if (S.isNull() == false) {
+ SPs.push_back(GV);
+ continue;
+ }
+ }
+ }
}
- cerr << "\n";
-}
-
-/// dump - print basic type.
-void DIBasicType::dump() const {
- cerr << " [" << dwarf::AttributeEncodingString(getEncoding()) << "] ";
-
-}
-
-/// dump - print derived type.
-void DIDerivedType::dump() const {
- cerr << "\n\t Derived From: "; getTypeDerivedFrom().dump();
-}
+ /// isValidDebugInfoIntrinsic - Return true if SPI is a valid debug
+ /// info intrinsic.
+ bool isValidDebugInfoIntrinsic(DbgStopPointInst &SPI,
+ CodeGenOpt::Level OptLev) {
+ return DIDescriptor::ValidDebugInfo(SPI.getContext(), OptLev);
+ }
-/// dump - print composite type.
-void DICompositeType::dump() const {
- DIArray A = getTypeArray();
- if (A.isNull())
- return;
- cerr << " [" << A.getNumElements() << " elements]";
-}
+ /// isValidDebugInfoIntrinsic - Return true if FSI is a valid debug
+ /// info intrinsic.
+ bool isValidDebugInfoIntrinsic(DbgFuncStartInst &FSI,
+ CodeGenOpt::Level OptLev) {
+ return DIDescriptor::ValidDebugInfo(FSI.getSubprogram(), OptLev);
+ }
-/// dump - print global.
-void DIGlobal::dump() const {
- if (const char *N = getName())
- cerr << " [" << N << "] ";
+ /// isValidDebugInfoIntrinsic - Return true if RSI is a valid debug
+ /// info intrinsic.
+ bool isValidDebugInfoIntrinsic(DbgRegionStartInst &RSI,
+ CodeGenOpt::Level OptLev) {
+ return DIDescriptor::ValidDebugInfo(RSI.getContext(), OptLev);
+ }
- unsigned Tag = getTag();
- cerr << " [" << dwarf::TagString(Tag) << "] ";
+ /// isValidDebugInfoIntrinsic - Return true if REI is a valid debug
+ /// info intrinsic.
+ bool isValidDebugInfoIntrinsic(DbgRegionEndInst &REI,
+ CodeGenOpt::Level OptLev) {
+ return DIDescriptor::ValidDebugInfo(REI.getContext(), OptLev);
+ }
- // TODO : Print context
- getCompileUnit().dump();
- cerr << " [" << getLineNumber() << "] ";
- if (isLocalToUnit())
- cerr << " [local] ";
+ /// isValidDebugInfoIntrinsic - Return true if DI is a valid debug
+ /// info intrinsic.
+ bool isValidDebugInfoIntrinsic(DbgDeclareInst &DI,
+ CodeGenOpt::Level OptLev) {
+ return DIDescriptor::ValidDebugInfo(DI.getVariable(), OptLev);
+ }
- if (isDefinition())
- cerr << " [def] ";
+ /// 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<GlobalVariable>(Context), 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);
+ }
- if (isGlobalVariable(Tag))
- DIGlobalVariable(GV).dump();
+ /// 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<GlobalVariable>(SP));
+ unsigned Line = Subprogram.getLineNumber();
+ DICompileUnit CU(Subprogram.getCompileUnit());
+
+ // If this location is already tracked then use it.
+ DebugLocTuple Tuple(CU.getGV(), 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);
+ }
- cerr << "\n";
-}
+ /// isInlinedFnStart - Return true if FSI is starting an inlined function.
+ bool isInlinedFnStart(DbgFuncStartInst &FSI, const Function *CurrentFn) {
+ DISubprogram Subprogram(cast<GlobalVariable>(FSI.getSubprogram()));
+ if (Subprogram.describes(CurrentFn))
+ return false;
-/// dump - print subprogram.
-void DISubprogram::dump() const {
- DIGlobal::dump();
-}
+ return true;
+ }
-/// dump - print global variable.
-void DIGlobalVariable::dump() const {
- cerr << " ["; getGlobal()->dump(); cerr << "] ";
-}
+ /// isInlinedFnEnd - Return true if REI is ending an inlined function.
+ bool isInlinedFnEnd(DbgRegionEndInst &REI, const Function *CurrentFn) {
+ DISubprogram Subprogram(cast<GlobalVariable>(REI.getContext()));
+ if (Subprogram.isNull() || Subprogram.describes(CurrentFn))
+ return false;
-/// dump - print variable.
-void DIVariable::dump() const {
- if (const char *N = getName())
- cerr << " [" << N << "] ";
+ return true;
+ }
- getCompileUnit().dump();
- cerr << " [" << getLineNumber() << "] ";
- getType().dump();
- cerr << "\n";
}
projects / oota-llvm.git / blobdiff