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DebugInfo: Simplify a few more explicit constructions, underconstrained types, and make DIType(MDNode*) explicit like all the other DI* node ctors.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195055 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2013-11-18 23:33:32 +00:00
parent a7b7a7d629
commit 4adba52570
4 changed files with 26 additions and 29 deletions
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39
lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
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@ -592,33 +592,31 @@ void CompileUnit::addBlockByrefAddress(const DbgVariable &DV, DIE *Die,
StringRef varName = DV.getName();
if (Tag == dwarf::DW_TAG_pointer_type) {
DIDerivedType DTy = DIDerivedType(Ty);
DIDerivedType DTy(Ty);
TmpTy = resolve(DTy.getTypeDerivedFrom());
isPointer = true;
}
DICompositeType blockStruct = DICompositeType(TmpTy);
DICompositeType blockStruct(TmpTy);
// Find the __forwarding field and the variable field in the __Block_byref
// struct.
DIArray Fields = blockStruct.getTypeArray();
DIDescriptor varField;
DIDescriptor forwardingField;
DIDerivedType varField;
DIDerivedType forwardingField;
for (unsigned i = 0, N = Fields.getNumElements(); i < N; ++i) {
DIDescriptor Element = Fields.getElement(i);
DIDerivedType DT = DIDerivedType(Element);
DIDerivedType DT(Fields.getElement(i));
StringRef fieldName = DT.getName();
if (fieldName == "__forwarding")
forwardingField = Element;
forwardingField = DT;
else if (fieldName == varName)
varField = Element;
varField = DT;
}
// Get the offsets for the forwarding field and the variable field.
unsigned forwardingFieldOffset =
DIDerivedType(forwardingField).getOffsetInBits() >> 3;
unsigned varFieldOffset = DIDerivedType(varField).getOffsetInBits() >> 3;
unsigned forwardingFieldOffset = forwardingField.getOffsetInBits() >> 3;
unsigned varFieldOffset = varField.getOffsetInBits() >> 2;
// Decode the original location, and use that as the start of the byref
// variable's location.
@ -1145,9 +1143,9 @@ void CompileUnit::constructTypeDIE(DIE &Buffer, DICompositeType CTy) {
case dwarf::DW_TAG_subroutine_type: {
// Add return type. A void return won't have a type.
DIArray Elements = CTy.getTypeArray();
DIDescriptor RTy = Elements.getElement(0);
DIType RTy(Elements.getElement(0));
if (RTy)
addType(&Buffer, DIType(RTy));
addType(&Buffer, RTy);
bool isPrototyped = true;
// Add arguments.
@ -1181,7 +1179,7 @@ void CompileUnit::constructTypeDIE(DIE &Buffer, DICompositeType CTy) {
DIE *ElemDie = NULL;
if (Element.isSubprogram()) {
DISubprogram SP(Element);
ElemDie = getOrCreateSubprogramDIE(DISubprogram(Element));
ElemDie = getOrCreateSubprogramDIE(SP);
if (SP.isProtected())
addUInt(ElemDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
dwarf::DW_ACCESS_protected);
@ -1247,9 +1245,9 @@ void CompileUnit::constructTypeDIE(DIE &Buffer, DICompositeType CTy) {
addFlag(&Buffer, dwarf::DW_AT_APPLE_block);
DICompositeType ContainingType(resolve(CTy.getContainingType()));
if (ContainingType.isCompositeType())
if (ContainingType)
addDIEEntry(&Buffer, dwarf::DW_AT_containing_type,
getOrCreateTypeDIE(DIType(ContainingType)));
getOrCreateTypeDIE(ContainingType));
if (CTy.isObjcClassComplete())
addFlag(&Buffer, dwarf::DW_AT_APPLE_objc_complete_type);
@ -1457,7 +1455,7 @@ DIE *CompileUnit::getOrCreateSubprogramDIE(DISubprogram SP) {
// be handled while processing variables.
for (unsigned i = 1, N = Args.getNumElements(); i < N; ++i) {
DIE *Arg = createAndAddDIE(dwarf::DW_TAG_formal_parameter, *SPDie);
DIType ATy = DIType(Args.getElement(i));
DIType ATy(Args.getElement(i));
addType(Arg, ATy);
if (ATy.isArtificial())
addFlag(Arg, dwarf::DW_AT_artificial);
@ -1708,13 +1706,12 @@ void CompileUnit::constructEnumTypeDIE(DIE &Buffer, DICompositeType CTy) {
// Add enumerators to enumeration type.
for (unsigned i = 0, N = Elements.getNumElements(); i < N; ++i) {
DIDescriptor Enum(Elements.getElement(i));
DIEnumerator ETy = DIEnumerator(Enum);
DIEnumerator Enum(Elements.getElement(i));
if (Enum.isEnumerator()) {
DIE *Enumerator = createAndAddDIE(dwarf::DW_TAG_enumerator, Buffer);
StringRef Name = ETy.getName();
StringRef Name = Enum.getName();
addString(Enumerator, dwarf::DW_AT_name, Name);
int64_t Value = ETy.getEnumValue();
int64_t Value = Enum.getEnumValue();
addSInt(Enumerator, dwarf::DW_AT_const_value, dwarf::DW_FORM_sdata, Value);
}
}