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annotate gcc/testsuite/c-c++-common/spec-barrier-1.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
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131
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1 /* { dg-do run } */
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2 /* { dg-options "-O" } */
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3
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4 /* Test that __builtin_speculation_safe_value returns the correct value. */
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5 /* This test will cause an unfiltered warning to be emitted on targets
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6 that have not implemented support for speculative execution
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7 barriers. They should fix that rather than disabling this
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8 test. */
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9 char a = 1;
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10 short b = 2;
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11 int c = 3;
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12 long d = 4;
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13 long long e = 5;
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14 int *f = (int*) &c;
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15 #ifdef __SIZEOF_INT128__
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16 __int128 g = 9;
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17 #endif
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18
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19 int main ()
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20 {
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21 if (__builtin_speculation_safe_value (a) != 1)
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22 __builtin_abort ();
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23 if (__builtin_speculation_safe_value (b) != 2)
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24 __builtin_abort ();
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25 if (__builtin_speculation_safe_value (c) != 3)
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26 __builtin_abort ();
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27 if (__builtin_speculation_safe_value (d) != 4)
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28 __builtin_abort ();
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29 if (__builtin_speculation_safe_value (e) != 5)
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30 __builtin_abort ();
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31 if (__builtin_speculation_safe_value (f) != &c)
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32 __builtin_abort ();
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33 #ifdef __SIZEOF_INT128__
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34 if (__builtin_speculation_safe_value (g) != 9)
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35 __builtin_abort ();
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36 #endif
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37 return 0;
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38 }