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111
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1 /* A simple check to see whether indirect calls are
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2 being sibcall optimized on targets that do support
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3 this notion, i.e. have the according call patterns
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4 in place.
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5
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6 Copyright (C) 2002 Free Software Foundation Inc.
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7 Contributed by Andreas Bauer <baueran@in.tum.de> */
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8
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9 /* { dg-do run { target epiphany-*-* i?86-*-* x86_64-*-* s390*-*-* } } */
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10 /* { dg-skip-if "" { { i?86-*-* x86_64-*-* } && { ia32 && { ! nonpic } } } } */
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11 /* { dg-options "-O2 -foptimize-sibling-calls -fno-ipa-cp" } */
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12
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13 extern void abort (void);
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14 extern void exit (int);
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15
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16 int foo (int);
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17 int bar (int);
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18
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19 int (*ptr) (int);
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20 int *f_addr;
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21
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22 int
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23 main ()
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24 {
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25 ptr = bar;
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26 foo (7);
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27 exit (0);
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28 }
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29
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30 int __attribute__ ((noinline))
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31 bar (b)
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32 int b;
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33 {
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34 if (f_addr == (int*) __builtin_return_address (0))
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35 return b;
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36 else
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37 abort ();
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38 }
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39
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40 int __attribute__ ((noinline))
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41 foo (f)
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42 int f;
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43 {
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44 f_addr = (int*) __builtin_return_address (0);
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45 return (*ptr)(f);
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46 }
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