RE: [PATCH] c++, libcpp: Implement C++29 P3540R3 - #embed offset parameter

[Jiang, Haochen]

> From: Jakub Jelinek <ja...@redhat.com>
> Sent: Saturday, June 13, 2026 12:47 AM
> 
> Hi!
> 
> The following patch on top of the just posted -std=c++29 patch
> implements the C++29 P3540R3 - #embed offset parameter paper.
> 
> Ok for trunk?
> 

Hi Jakub,

Should we also add cxx29 in get_cxx_dialect_name() in
gcc/cp/name-lookup.cc to avoid ICEs? (Or this is expected?)

https://gcc.gnu.org/pipermail/gcc-regression/2026-June/083970.html

/* Describe DIALECT.  */

const char *
get_cxx_dialect_name (enum cxx_dialect dialect)
{
  switch (dialect)
    {
    default:
      gcc_unreachable ();
    case cxx98:
      return "C++98";
    case cxx11:
      return "C++11";
    case cxx14:
      return "C++14";
    case cxx17:
      return "C++17";
    case cxx20:
      return "C++20";
    case cxx23:
      return "C++23";
    case cxx26:
      return "C++26";
+    case cxx29:
+      return "C++29";
    }
}

Thx,
Haochen