[Bug middle-end/78917] missing -Wnonnull passing null to a nonnull function

["egallager at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78917

Eric Gallager <egallager at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-08-28
                 CC|                            |egallager at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Eric Gallager <egallager at gcc dot gnu.org> ---
Confirmed, although I'm wondering how this is different from bug 78998? Sure,
the original source is slightly different, but they optimize to pretty much the
same thing... doing -fdump-tree-optimized to text files instead of /dev/stdout
and then comparing them gives:

$ diff -u 78998_opt.txt 78917_opt.txt
--- 78998_opt.txt       2017-08-28 15:50:10.000000000 -0400
+++ 78917_opt.txt       2017-08-28 15:50:23.000000000 -0400
@@ -1,15 +1,15 @@

-;; Function f (f, funcdef_no=0, decl_uid=1769, cgraph_uid=0, symbol_order=0)
+;; Function g (g, funcdef_no=0, decl_uid=1770, cgraph_uid=0, symbol_order=0)

-f (int i)
+g (int i, int j)
 {
   long unsigned int _1;
-  int _6;
+  int _7;

   <bb 2> [100.00%] [count: INV]:
   _1 = __builtin_strlen (0B); [tail call]
-  _6 = (int) _1;
-  return _6;
+  _7 = (int) _1;
+  return _7;

 }

$