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[Demangle] Add support for D special identifiers 

Reviewed By: dblaikie

Differential Revision: https://reviews.llvm.org/D114308
This commit is contained in:
Luís Ferreira 2021-12-07 00:52:37 +00:00
parent 5911a29aa9
commit 8a7ddf9e22
2 changed files with 59 additions and 1 deletions
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49
llvm/lib/Demangle/DLangDemangle.cpp
View File

@ -247,6 +247,55 @@ const char *Demangler::parseIdentifier(OutputBuffer *Demangled,
const char *Demangler::parseLName(OutputBuffer *Demangled, const char *Mangled,
unsigned long Len) {
switch (Len) {
case 6:
if (strncmp(Mangled, "__initZ", Len + 1) == 0) {
// The static initializer for a given symbol.
Demangled->prepend("initializer for ");
Demangled->setCurrentPosition(Demangled->getCurrentPosition() - 1);
Mangled += Len;
return Mangled;
}
if (strncmp(Mangled, "__vtblZ", Len + 1) == 0) {
// The vtable symbol for a given class.
Demangled->prepend("vtable for ");
Demangled->setCurrentPosition(Demangled->getCurrentPosition() - 1);
Mangled += Len;
return Mangled;
}
break;
case 7:
if (strncmp(Mangled, "__ClassZ", Len + 1) == 0) {
// The classinfo symbol for a given class.
Demangled->prepend("ClassInfo for ");
Demangled->setCurrentPosition(Demangled->getCurrentPosition() - 1);
Mangled += Len;
return Mangled;
}
break;
case 11:
if (strncmp(Mangled, "__InterfaceZ", Len + 1) == 0) {
// The interface symbol for a given class.
Demangled->prepend("Interface for ");
Demangled->setCurrentPosition(Demangled->getCurrentPosition() - 1);
Mangled += Len;
return Mangled;
}
break;
case 12:
if (strncmp(Mangled, "__ModuleInfoZ", Len + 1) == 0) {
// The ModuleInfo symbol for a given module.
Demangled->prepend("ModuleInfo for ");
Demangled->setCurrentPosition(Demangled->getCurrentPosition() - 1);
Mangled += Len;
return Mangled;
}
break;
}
*Demangled << StringView(Mangled, Len);
Mangled += Len;

11
llvm/unittests/Demangle/DLangDemangleTest.cpp
View File

@ -36,4 +36,13 @@ INSTANTIATE_TEST_SUITE_P(
std::make_pair("_D8demangle4testZ", "demangle.test"),
std::make_pair("_D8demangle4test5test2Z", "demangle.test.test2"),
std::make_pair("_D8demangle4test0Z", "demangle.test"),
std::make_pair("_D8demangle4test03fooZ", "demangle.test.foo")));
std::make_pair("_D8demangle4test03fooZ", "demangle.test.foo"),
std::make_pair("_D8demangle4test6__initZ",
"initializer for demangle.test"),
std::make_pair("_D8demangle4test6__vtblZ", "vtable for demangle.test"),
std::make_pair("_D8demangle4test7__ClassZ",
"ClassInfo for demangle.test"),
std::make_pair("_D8demangle4test11__InterfaceZ",
"Interface for demangle.test"),
std::make_pair("_D8demangle4test12__ModuleInfoZ",
"ModuleInfo for demangle.test")));