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111
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1 #include "tree-vect.h"
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2
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3 extern void *memset(void *s, int c, __SIZE_TYPE__ n);
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4 extern void abort (void);
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5
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6 #define ASIZE 1028
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7 #define HALF (ASIZE/2)
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8
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9 int main() {
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10 unsigned int array[ASIZE];
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11 int i;
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12
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13 check_vect ();
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14
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15 memset(array, 0, sizeof(array));
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16
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17 /* initialize first half of the array */
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18 for (i = 0; i < HALF; i++)
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19 array[i] = i;
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20
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21 /* fill second half of array in by summing earlier elements of the array
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22 gcc 4.5.1 and 4.5.2 incorrectly vectorize this loop! aray[1025] is left
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23 at 0 for ASIZE=1028 */
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24 for (i = 0; i < HALF-1; i++)
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25 array[HALF+i] = array[2*i] + array[2*i + 1];
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26
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27 /* see if we have any failures */
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28 for (i = 0; i < HALF - 1; i++)
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29 if (array[HALF+i] != array[2*i] + array[2*i + 1])
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30 abort ();
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31
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32 return 0;
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33 }
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34
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