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[MS Demangler] Demangle special operator 'dynamic initializer'.

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This is encoded as __E and should print something like
"dynamic initializer for 'Foo'(void)"

This also adds support for dynamic atexit destructor, which is
basically identical but encoded as __F with slightly different
description.

llvm-svn: 340239
This commit is contained in:
Zachary Turner 2018-08-20 23:59:21 +00:00
parent ac6c3f6394
commit 234e63078e
2 changed files with 24 additions and 1 deletions
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19
lib/Demangle/MicrosoftDemangle.cpp
View File

@ -271,6 +271,8 @@ enum class OperatorTy : uint8_t {
LocalVftableCtorClosure, // ?_T # local vftable constructor closure
ArrayNew, // ?_U operator new[]
ArrayDelete, // ?_V operator delete[]
DynamicInitializer, // ?__E dynamic initializer for `T'
DynamicAtexitDestructor, // ?__F dynamic atexit destructor for `T'
LiteralOperator, // ?__K operator ""_name
CoAwait, // ?__L co_await
Spaceship, // operator<=>
@ -360,6 +362,8 @@ OperatorMapEntry OperatorMap[] = {
{"_T", "`local vftable ctor closure'", OperatorTy::LocalVftableCtorClosure},
{"_U", "operator new[]", OperatorTy::ArrayNew},
{"_V", "operator delete[]", OperatorTy::ArrayDelete},
{"__E", "dynamic initializer", OperatorTy::DynamicInitializer},
{"__F", "dynamic atexit destructor", OperatorTy::DynamicAtexitDestructor},
{"__K", "operator \"\"", OperatorTy::LiteralOperator},
{"__L", "co_await", OperatorTy::CoAwait},
};
@ -883,12 +887,20 @@ static void outputName(OutputStream &OS, const Name *TheName, const Type *Ty) {
const OperatorInfo *Operator = lastComponentAsOperator(TheName);
const VirtualMemberPtrThunk *Thunk = nullptr;
bool PrintLastScopeSeparator = true;
if (Operator) {
if (Operator->Info->Operator == OperatorTy::Vcall) {
Thunk = static_cast<const VirtualMemberPtrThunk *>(Operator);
OS << "[thunk]: ";
outputCallingConvention(OS, Thunk->CC);
OS << " ";
} else if (Operator->Info->Operator == OperatorTy::DynamicInitializer) {
OS << "`dynamic initializer for '";
PrintLastScopeSeparator = false;
} else if (Operator->Info->Operator ==
OperatorTy::DynamicAtexitDestructor) {
OS << "`dynamic atexit destructor for '";
PrintLastScopeSeparator = false;
}
}
@ -897,7 +909,8 @@ static void outputName(OutputStream &OS, const Name *TheName, const Type *Ty) {
for (; TheName->Next; TheName = TheName->Next) {
Previous = TheName;
outputNameComponent(OS, *TheName);
OS << "::";
if (TheName->Next != Operator || PrintLastScopeSeparator)
OS << "::";
}
// Print out a regular name.
@ -946,6 +959,10 @@ static void outputName(OutputStream &OS, const Name *TheName, const Type *Ty) {
OS << Thunk->OffsetInVTable << ", {flat}}";
break;
}
case OperatorTy::DynamicInitializer:
case OperatorTy::DynamicAtexitDestructor:
OS << "''";
break;
case OperatorTy::LocalStaticGuard: {
const LocalStaticGuardVariable &LSG =

6
test/Demangle/ms-operators.test
View File

@ -215,6 +215,12 @@
??_R4Base@@6B@
; CHECK: const Base::`RTTI Complete Object Locator'
??__EFoo@@YAXXZ
void __cdecl `dynamic initializer for 'Foo''(void)
??__FFoo@@YAXXZ
void __cdecl `dynamic atexit destructor for 'Foo''(void)
??__K_deg@@YAHO@Z
; CHECK: int __cdecl operator ""_deg(long double)