[gcc r13-4003] Fortran: fix treatment of character, value, optional dummy arguments [PR107444]

[Harald Anlauf]

https://gcc.gnu.org/g:04e2fd20d3d5fce2c99c856361d5f3d3ce955906

commit r13-4003-g04e2fd20d3d5fce2c99c856361d5f3d3ce955906
Author: Harald Anlauf <anlauf@gmx.de>
Date:   Sun Nov 13 21:53:58 2022 +0100

    Fortran: fix treatment of character, value, optional dummy arguments [PR107444]
    
    gcc/fortran/ChangeLog:
    
            PR fortran/107444
            * trans-openmp.cc (gfc_omp_check_optional_argument): Adjust to change
            of prefix of internal symbol for presence status to '.'.

Diff:
---
 gcc/fortran/trans-openmp.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/fortran/trans-openmp.cc b/gcc/fortran/trans-openmp.cc
index 4bfdf85cd9b..9070c03353d 100644
--- a/gcc/fortran/trans-openmp.cc
+++ b/gcc/fortran/trans-openmp.cc
@@ -123,7 +123,7 @@ gfc_omp_check_optional_argument (tree decl, bool for_present_check)
       char name[GFC_MAX_SYMBOL_LEN + 2];
       tree tree_name;
 
-      name[0] = '_';
+      name[0] = '.';
       strcpy (&name[1], IDENTIFIER_POINTER (DECL_NAME (decl)));
       tree_name = get_identifier (name);