Support for enumerations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26466 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Laskey 2006-03-01 23:52:37 +00:00
parent 5df5940693
commit 6a3eb01084
3 changed files with 95 additions and 2 deletions

View File

@ -446,6 +446,44 @@ public:
#endif
};
//===----------------------------------------------------------------------===//
/// EnumeratorDesc - This class packages debug information associated with
/// named integer constants.
class EnumeratorDesc : public DebugInfoDesc {
private:
std::string Name; // Enumerator name.
int64_t Value; // Enumerator value.
public:
EnumeratorDesc();
// Accessors
const std::string &getName() const { return Name; }
int64_t getValue() const { return Value; }
void setName(const std::string &N) { Name = N; }
void setValue(int64_t V) { Value = V; }
// Implement isa/cast/dyncast.
static bool classof(const EnumeratorDesc *) { return true; }
static bool classof(const DebugInfoDesc *D);
/// ApplyToFields - Target the visitor to the fields of the EnumeratorDesc.
///
virtual void ApplyToFields(DIVisitor *Visitor);
/// getDescString - Return a string used to compose global names and labels.
///
virtual const char *getDescString() const;
/// getTypeString - Return a string used to label this descriptor's type.
///
virtual const char *getTypeString() const;
#ifndef NDEBUG
virtual void dump();
#endif
};
//===----------------------------------------------------------------------===//
/// GlobalDesc - This class is the base descriptor for global functions and
/// variables.

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@ -1109,8 +1109,8 @@ DIE *DwarfWriter::NewType(DIE *Context, TypeDesc *TyDesc) {
if (Lo != Hi) {
Subrange->AddDIEntry(DW_AT_type, DW_FORM_ref4, IndexTy);
// Only add low if non-zero.
if (Lo) Subrange->AddUInt(DW_AT_lower_bound, 0, Lo);
Subrange->AddUInt(DW_AT_upper_bound, 0, Hi);
if (Lo) Subrange->AddSInt(DW_AT_lower_bound, 0, Lo);
Subrange->AddSInt(DW_AT_upper_bound, 0, Hi);
}
Ty->AddChild(Subrange);
}
@ -1124,6 +1124,17 @@ DIE *DwarfWriter::NewType(DIE *Context, TypeDesc *TyDesc) {
break;
}
case DW_TAG_enumeration_type: {
// Add enumerators to enumeration type.
for(unsigned i = 0, N = Elements.size(); i < N; ++i) {
EnumeratorDesc *ED = cast<EnumeratorDesc>(Elements[i]);
const std::string &Name = ED->getName();
int64_t Value = ED->getValue();
DIE *Enumerator = new DIE(DW_TAG_enumerator);
Enumerator->AddString(DW_AT_name, DW_FORM_string, Name);
Enumerator->AddSInt(DW_AT_const_value, DW_FORM_sdata, Value);
Ty->AddChild(Enumerator);
}
break;
}
default: break;

View File

@ -516,6 +516,7 @@ DebugInfoDesc *DebugInfoDesc::DescFactory(unsigned Tag) {
case DW_TAG_union_type:
case DW_TAG_enumeration_type: return new CompositeTypeDesc(Tag);
case DW_TAG_subrange_type: return new SubrangeDesc();
case DW_TAG_enumerator: return new EnumeratorDesc();
default: break;
}
return NULL;
@ -909,6 +910,49 @@ void SubrangeDesc::dump() {
//===----------------------------------------------------------------------===//
EnumeratorDesc::EnumeratorDesc()
: DebugInfoDesc(DW_TAG_enumerator)
, Name("")
, Value(0)
{}
// Implement isa/cast/dyncast.
bool EnumeratorDesc::classof(const DebugInfoDesc *D) {
return D->getTag() == DW_TAG_enumerator;
}
/// ApplyToFields - Target the visitor to the fields of the EnumeratorDesc.
///
void EnumeratorDesc::ApplyToFields(DIVisitor *Visitor) {
DebugInfoDesc::ApplyToFields(Visitor);
Visitor->Apply(Name);
Visitor->Apply(Value);
}
/// getDescString - Return a string used to compose global names and labels.
///
const char *EnumeratorDesc::getDescString() const {
return "llvm.dbg.enumerator";
}
/// getTypeString - Return a string used to label this descriptor's type.
///
const char *EnumeratorDesc::getTypeString() const {
return "llvm.dbg.enumerator.type";
}
#ifndef NDEBUG
void EnumeratorDesc::dump() {
std::cerr << getDescString() << " "
<< "Tag(" << getTag() << "), "
<< "Name(" << Name << "), "
<< "Value(" << Value << ")\n";
}
#endif
//===----------------------------------------------------------------------===//
GlobalDesc::GlobalDesc(unsigned T)
: AnchoredDesc(T)
, Context(0)