https://gcc.gnu.org/g:b8d52c26b578db45a3a57f66d14de7ff17fb7efc

commit b8d52c26b578db45a3a57f66d14de7ff17fb7efc
Author: Paul-Antoine Arras <[email protected]>
Date:   Fri Oct 24 11:05:27 2025 +0200

    OpenMP/C++: Fix label mangling in metadirective body [PR122378]
    
    Testcase c-c++-common/gomp/attrs-metadirective-2.c failed in C++ when
    OFFLOAD_TARGET_NAMES=nvptx-none. That was caused by label mangling being 
applied
    to the use but not to the declaration.
    This is now fixed by mangling the declaration as well.
    
            PR c++/122378
    
    gcc/cp/ChangeLog:
    
            * parser.cc (cp_parser_label_declaration): Mangle label declaration 
in a
            metadirective region.
    
    (cherry picked from commit d9f720f2ce39b56e91209c0283049f8e0ae8e7fc)

Diff:
---
 gcc/cp/parser.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gcc/cp/parser.cc b/gcc/cp/parser.cc
index da65d4e4fcc2..9cd5d7cb27ff 100644
--- a/gcc/cp/parser.cc
+++ b/gcc/cp/parser.cc
@@ -32369,6 +32369,8 @@ cp_parser_label_declaration (cp_parser* parser)
       /* If we failed, stop.  */
       if (identifier == error_mark_node)
        break;
+      if (parser->omp_metadirective_state)
+       identifier = mangle_metadirective_region_label (parser, identifier);
       /* Declare it as a label.  */
       finish_label_decl (identifier);
       /* If the next token is a `;', stop.  */

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