[gcc r14-1988] Fortran: Fix parse-dump-tree for OpenMP ALLOCATE clause

[gcc r14-1988] Fortran: Fix parse-dump-tree for OpenMP ALLOCATE clause

[Tobias Burnus]

https://gcc.gnu.org/g:99e3214f582b08b69b11b53eb3fc73b0919ef4f1

commit r14-1988-g99e3214f582b08b69b11b53eb3fc73b0919ef4f1
Author: Tobias Burnus <tobias@codesourcery.com>
Date:   Tue Jun 20 13:46:11 2023 +0200

    Fortran: Fix parse-dump-tree for OpenMP ALLOCATE clause
    
    Commit r14-1301-gd64e8e1224708e added u2.allocator to gfc_omp_namelist
    for better readability and to permit to use namelist->expr for code
    like the following:
      !$omp allocators allocate(align(32) : dt%alloc_comp)
        allocate (dt%alloc_comp(5))
      !$omp allocate(dt%alloc_comp2) align(64)
        allocate (dt%alloc_comp2(10))
    However, for the parse-tree dump the change was incomplete.
    
    gcc/fortran/ChangeLog:
    
            * dump-parse-tree.cc (show_omp_namelist): Fix dump of the allocator
            modifier of OMP_LIST_ALLOCATE.

Diff:
---
 gcc/fortran/dump-parse-tree.cc | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/gcc/fortran/dump-parse-tree.cc b/gcc/fortran/dump-parse-tree.cc
index 99c8bdaadce..effcebe9325 100644
--- a/gcc/fortran/dump-parse-tree.cc
+++ b/gcc/fortran/dump-parse-tree.cc
@@ -1374,7 +1374,7 @@ show_omp_namelist (int list_type, gfc_omp_namelist *n)
 	}
       if (list_type == OMP_LIST_ALLOCATE)
 	{
-	  if (n->expr)
+	  if (n->u2.allocator)
 	    {
 	      fputs ("allocator(", dumpfile);
 	      show_expr (n->u2.allocator);
@@ -1388,9 +1388,12 @@ show_omp_namelist (int list_type, gfc_omp_namelist *n)
 	      show_expr (n->u.align);
 	      fputc (')', dumpfile);
 	    }
-	  if (n->expr || n->u.align)
+	  if (n->u2.allocator || n->u.align)
 	    fputc (':', dumpfile);
-	  fputs (n->sym->name, dumpfile);
+	  if (n->expr)
+	    show_expr (n->expr);
+	  else
+	    fputs (n->sym->name, dumpfile);
 	  if (n->next)
 	    fputs (") ALLOCATE(", dumpfile);
 	  continue;