Fixes the following bug:
namespace Name {
int __attribute((target_version("default"))) foo() { return 0; }
}
namespace Name {
int __attribute((target_version("sve"))) foo() { return 1; }
}
int bar() { return Name::foo(); }
error: redefinition of 'foo'
int __attribute((target_version("sve"))) foo() { return 1; }
note: previous definition is here
int __attribute((target_version("default"))) foo() { return 0; }
While fixing this I also found that in the absence of default version
declaration, the one we implicitly create has incorrect mangling if
we are in a namespace:
namespace OtherName {
int __attribute((target_version("sve"))) foo() { return 2; }
}
int baz() { return OtherName::foo(); }
In this example instead of creating a declaration for the symbol
@_ZN9OtherName3fooEv.default we are creating one for the symbol
@_Z3foov.default (the namespace mangling prefix is omitted).
This has now been fixed.
