This is a pretty large refactor / re-write of the Microsoft
demangler. The previous one was a little hackish because it
evolved as I was learning about all the various edge cases,
exceptions, etc. It didn't have a proper AST and so there was
lots of custom handling of things that should have been much
more clean.
Taking what was learned from that experience, it's now
re-written with a completely redesigned and much more sensible
AST. It's probably still not perfect, but at least it's
comprehensible now to someone else who wants to come along
and make some modifications or read the code.
Incidentally, this fixed a couple of bugs, so I've enabled
the tests which now pass.
llvm-svn: 340710
I found these by running llvm-undname over a couple hundred
megabytes of object files generated as part of building chromium.
The issues fixed in this patch are:
1) decltype-auto return types.
2) Indirect vtables (e.g. const A::`vftable'{for `B'})
3) Pointers, references, and rvalue-references to member pointers.
I have exactly one remaining symbol out of a few hundred MB of object
files that produces a name we can't demangle, and it's related to
back-referencing.
llvm-svn: 340341
Zachary Turner