usr/src/cmd/dtrace/test/tst/common/cg/err.baddif.d

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * This file and its contents are supplied under the terms of the
   5  * Common Development and Distribution License ("CDDL"), version 1.0.
   6  * You may only use this file in accordance with the terms of version
   7  * 1.0 of the CDDL.
   8  *
   9  * A full copy of the text of the CDDL should have accompanied this
  10  * source.  A copy of the CDDL is also available via the Internet at
  11  * http://www.illumos.org/license/CDDL.
  12  *
  13  * CDDL HEADER END
  14  */
  15
  16 /*
  17  * Copyright (c) 2012 by Delphix. All rights reserved.
  18  */
  19
  20 /*
  21  * Compile some code that requires exactly 9 registers. This should generate
  22  * invalid DIF because the kernel will flag the fact that we're using more
  23  * registers than are available internally.
  24  *
  25  * Changes to the code generator might cause this test to succeeed in which
  26  * case the code should be changed to another sequence that exhausts the
  27  * available internal registers.
  28  *
  29  * Note that this and err.D_NOREG.noreg.d should be kept in sync.
  30  */
  31
  32 #pragma D option iregs=9
  33
  34 BEGIN
  35 {
  36         a = 4;
  37         trace((a + a) * ((a + a) * ((a + a) * ((a + a) * ((a + a) *
  38             ((a + a) * (a + a)))))));
  39 }
  40
  41 BEGIN
  42 {
  43         exit(0);
  44 }