Add missing file

From-SVN: r243002

gcc/testsuite/gcc.dg/pr78582.c

+/* PR target/78582. */
+/* { dg-options "-fprofile-generate" } */
+/* { dg-compile } */
+
+#include <setjmp.h>
+
+void reader_loop () {}
+
+int
+main (int argc, char argv, char env)
+{
+  int a;
+  sigsetjmp (0, 0);
+  argc = a = argc;
+  reader_loop ();
+
+  return 0;
+}