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152
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1 /* { dg-do run } */
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2 /* { dg-additional-options "-ftree-vectorize" } */
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3
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4 unsigned a[1024];
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5 unsigned b[1024];
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6
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7 void __attribute__((noipa))
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8 foo (unsigned *q, unsigned *r)
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9 {
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10 unsigned sum1 = 0, sum2 = 0;
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11 for (int i = 0; i < 512; ++i)
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12 {
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13 sum1 += a[2*i];
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14 sum2 += a[2*i+1];
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15 b[2*i] = a[2*i+1];
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16 b[2*i+1] = a[2*i];
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17 }
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18 *q = sum1;
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19 *r = sum2;
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20 }
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21
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22 int main()
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23 {
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24 unsigned sum1, sum2;
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25 a[0] = 0;
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26 a[1] = 1;
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27 foo (&sum1, &sum2);
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28 if (b[0] != 1 || b[1] != 0)
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29 __builtin_abort ();
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30 return 0;
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31 }
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