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annotate gcc/testsuite/gcc.c-torture/execute/pr86492.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 /* PR tree-optimization/86492 */
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2
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3 union U
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4 {
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5 unsigned int r;
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6 struct S
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7 {
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8 unsigned int a:12;
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9 unsigned int b:4;
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10 unsigned int c:16;
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11 } f;
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12 };
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13
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14 __attribute__((noipa)) unsigned int
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15 foo (unsigned int x)
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16 {
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17 union U u;
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18 u.r = 0;
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19 u.f.c = x;
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20 u.f.b = 0xe;
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21 return u.r;
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22 }
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23
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24 int
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25 main ()
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26 {
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27 union U u;
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28 if (__CHAR_BIT__ * __SIZEOF_INT__ != 32 || sizeof (u.r) != sizeof (u.f))
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29 return 0;
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30 u.r = foo (0x72);
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31 if (u.f.a != 0 || u.f.b != 0xe || u.f.c != 0x72)
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32 __builtin_abort ();
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33 return 0;
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34 }