* gcc.c-torture/execute/nestfunc-4.c: New test.

From-SVN: r48556

gcc/testsuite/ChangeLog

@@ -1,3 +1,7 @@
+2002-01-05  Hans-Peter Nilsson  <hp@bitrange.com>
+
+	* gcc.c-torture/execute/nestfunc-4.c: New test.
+
 2002-01-04  Loren J. Rittle  <ljrittle@acm.org>
 
         * g++.old-deja/g++.abi/aggregates.C: Corrected last patch: removed

gcc/testsuite/gcc.c-torture/execute/nestfunc-4.c

@@ -0,0 +1,37 @@
+/* Origin: hp@bitrange.com
+   Test that return values come out right from a 1000-level call chain to
+   functions without parameters that each need at least one "long"
+   preserved.  Exposed problems related to the MMIX port.  */
+
+long level = 0;
+extern long foo (void);
+extern long bar (void);
+
+#ifdef STACK_SIZE
+#define DEPTH ((STACK_SIZE) / 512 + 1)
+#else
+#define DEPTH 500
+#endif
+
+int
+main (void)
+{
+  if (foo () == -42)
+    exit (0);
+
+  abort ();
+}
+
+long
+foo (void)
+{
+  long tmp = ++level;
+  return bar () + tmp;
+}
+
+long
+bar (void)
+{
+  long tmp = level;
+  return tmp > DEPTH - 1 ? -42 - tmp : foo () - tmp;
+}