[Bug c++/77321] [7 Regression] crash in warn_for_memset

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77321

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mpolacek at gcc dot gnu.org

--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
The fix should be just

--- a/gcc/c-family/c-common.c
+++ b/gcc/c-family/c-common.c
@@ -11991,7 +11991,7 @@ warn_for_memset (location_t loc, tree arg0, tree arg2,
       if (TREE_CODE (arg0) == ADDR_EXPR)
    arg0 = TREE_OPERAND (arg0, 0);
       tree type = TREE_TYPE (arg0);
-      if (TREE_CODE (type) == ARRAY_TYPE)
+      if (type != NULL_TREE && TREE_CODE (type) == ARRAY_TYPE)
    {
      tree elt_type = TREE_TYPE (type);
      tree domain = TYPE_DOMAIN (type);