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111
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1 /* Verify straight-line strength reduction for array
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2 subscripting.
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3
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4 elems[n-1] is reduced to elems + n * 4 + 0xffffffff * 4, only when
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5 pointers are of the same size as that of int (assuming 4 bytes). */
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6
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7 /* { dg-do run } */
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8 /* { dg-options "-O2" } */
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9
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10 struct data
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11 {
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12 unsigned long elms[1];
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13 } gData;
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14
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15 void __attribute__((noinline))
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16 foo (struct data *dst, unsigned int n)
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17 {
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18 dst->elms[n - 1] &= 1;
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19 }
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20
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21 int
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22 main ()
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23 {
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24 foo (&gData, 1);
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25 return 0;
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26 }
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27
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