[gcc r16-1840] Fix "void debug (const tree_node *ptr)"

[H.J. Lu via Gcc-cvs]

https://gcc.gnu.org/g:76671eb3142f9827691fcb08ca7938624221104e

commit r16-1840-g76671eb3142f9827691fcb08ca7938624221104e
Author: H.J. Lu <hjl.to...@gmail.com>
Date:   Tue Jul 1 08:14:09 2025 +0800

    Fix "void debug (const tree_node *ptr)"
    
    Calling "debug (const tree_node *ptr)" does nothing.  Change it to
    call debug_tree so that we can do this in gdb:
    
    (gdb) whatis type
    type = const_tree
    (gdb) call debug (type)
     <real_type 0x7fffe982f2a0 float sizes-gimplified SF
        size <integer_cst 0x7fffe98204e0 type <integer_type 0x7fffe98280a8 
bitsizetype> constant 32>
        unit-size <integer_cst 0x7fffe98204f8 type <integer_type 0x7fffe9828000 
sizetype> constant 4>
        align:32 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type 
0x7fffe982f2a0 precision:32
        pointer_to_this <pointer_type 0x7fffe982f930>>
    (gdb)
    
            PR debug/120902
            * print-tree.cc (debug with const tree_node *): Call debug_tree
            instead of debug.
    
    Signed-off-by: H.J. Lu <hjl.to...@gmail.com>

Diff:
---
 gcc/print-tree.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/print-tree.cc b/gcc/print-tree.cc
index 6ec96f0ba171..f84be762741c 100644
--- a/gcc/print-tree.cc
+++ b/gcc/print-tree.cc
@@ -1193,7 +1193,7 @@ DEBUG_FUNCTION void
 debug (const tree_node *ptr)
 {
   if (ptr)
-    debug (*ptr);
+    debug_tree (const_cast <tree> (ptr));
   else
     fprintf (stderr, "<nil>\n");
 }