re PR middle-end/17564 (New treatment of function pointers when used with…

re PR middle-end/17564 (New treatment of function pointers when used with equality operators, when casts are involved)

	PR middle-end/17564
	* gcc.c-torture/execute/20041212-1.c: New test.

From-SVN: r92076

gcc/testsuite/ChangeLog

+2004-12-12  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
+
+	PR middle-end/17564
+	* gcc.c-torture/execute/20041212-1.c: New test.
+
 2004-12-12  Tobias Schlueter  <tobias.schlueter@physik.uni-muenchen.de>
 
 	PR fortran/18869

gcc/testsuite/gcc.c-torture/execute/20041212-1.c

+/* A function pointer compared with a void pointer should not be canonicalized.
+   See PR middle-end/17564.  */
+void *f (void) __attribute__ ((__noinline__));
+void *
+f (void)
+{
+  return f;
+}
+int
+main (void)
+{
+  if (f () != f)
+    abort ();
+  exit (0);
+}