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111
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1 /* PR tree-optimization/68835 */
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2 /* { dg-do run { target int128 } } */
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3 /* { dg-options "-O2" } */
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4
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5 __attribute__((noinline, noclone)) unsigned __int128
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6 foo (void)
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7 {
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8 unsigned __int128 x = (unsigned __int128) 0xffffffffffffffffULL;
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9 struct { unsigned __int128 a : 65; } w;
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10 w.a = x;
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11 w.a += x;
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12 return w.a;
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13 }
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14
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15 int
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16 main ()
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17 {
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18 unsigned __int128 x = foo ();
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19 if ((unsigned long long) x != 0xfffffffffffffffeULL
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20 || (unsigned long long) (x >> 64) != 1)
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21 __builtin_abort ();
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22 return 0;
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23 }
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