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Re: [PATCH] libiberty: support demangling of rvalue reference typenames
- From: Artemiy Volkov <artemiyv at acm dot org>
- To: Ian Lance Taylor <ian at airs dot com>
- Cc: gcc-patches at gcc dot gnu dot org, dj at redhat dot com
- Date: Tue, 5 Jan 2016 10:57:27 +0300
- Subject: Re: [PATCH] libiberty: support demangling of rvalue reference typenames
- Authentication-results: sourceware.org; auth=none
- References: <1451958209-29170-1-git-send-email-artemiyv at acm dot org> <m3y4c45zm3 dot fsf at pepe dot airs dot com>
On Mon, Jan 04, 2016 at 10:06:44PM -0800, Ian Lance Taylor wrote:
> Artemiy Volkov <artemiyv@acm.org> writes:
>
> > This patch adds handling of 'O' (rvalue ref) type codes in the C++ demangling
> > code which is done similarly to the 'R' (regular references) case. It also adds
> > a few testcases for various demangling styles which are just mirrored versions
> > of the corresponding regular references demangling tests.
> >
> > libiberty/ChangeLog:
> >
> > 2016-01-04 Artemiy Volkov <artemiyv@acm.org>
> >
> > * cplus-dem.c (enum type_kind_t): Add tk_rvalue_reference
> > constant.
> > (demangle_template_value_parm): Handle tk_rvalue_reference
> > type kind.
> > (do_type): Support 'O' type id (rvalue references).
>
> Is there a compiler that actually generate these symbols?
Sure, at least gcc and clang generate this. E.g. when compiling:
void f(int&& b) { }
you then have:
â nm 1.o
0000000000000000 T _Z1fOi
>
> Ian