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111
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1 /* Verify straight-line strength reduction for multiply candidates
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2 with variable stride and control flow, increment = -1. */
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3
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4 /* { dg-do compile } */
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5 /* { dg-options "-O3 -fdump-tree-optimized" } */
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6
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7 int
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8 f (int n, int x, int stride)
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9 {
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10 int a, x1, x2, x3;
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11
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12 a = x * stride;
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13
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14 if (n > 64)
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15 {
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16 x1 = x - 1;
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17 a += x1 * stride;
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18 x2 = x1 - 1;
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19 a += x2 * stride;
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20 }
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21 else
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22 {
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23 x3 = x - 1;
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24 a += x3 * stride;
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25 }
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26
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27 return a;
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28 }
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29
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30 /* { dg-final { scan-tree-dump-times " \\* " 1 "optimized" } } */
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