[Bug middle-end/77558] c-c++-common/va-arg-va-list-type.c fails for aarch64

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77558

Tom de Vries <vries at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |christophe.lyon at st dot com

--- Comment #1 from Tom de Vries <vries at gcc dot gnu.org> ---
This patch seems to fix the problem:
...
diff --git a/gcc/builtins.c b/gcc/builtins.c
index e779c71..93a5f3b 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -4089,10 +4089,7 @@ std_canonical_va_list_type (tree type)

   wtype = va_list_type_node;
   htype = type;
-  /* Treat structure va_list types.  */
-  if (TREE_CODE (wtype) == RECORD_TYPE && POINTER_TYPE_P (htype))
-    htype = TREE_TYPE (htype);
-  else if (TREE_CODE (wtype) == ARRAY_TYPE)
+  if (TREE_CODE (wtype) == ARRAY_TYPE)
     {
       /* If va_list is an array type, the argument may have decayed
         to a pointer type, e.g. by being passed to another function.
...

Should get some testing on aarch64.