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annotate gcc/testsuite/gcc.dg/loop-versioning-11.c @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
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145
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1 /* { dg-options "-O3 -fdump-tree-lversion-details" } */
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2
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3 /* Test that we don't try to version for something that is never 1. */
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4
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5 void
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6 f1 (double *x, int stepx, int n)
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7 {
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8 if (stepx == 1)
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9 for (int i = 0; i < n; ++i)
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10 x[i] = 100;
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11 else
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12 for (int i = 0; i < n; ++i)
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13 x[stepx * i] = 100;
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14 }
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15
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16 void
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17 f2 (double *x, int stepx, int n)
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18 {
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19 if (stepx <= 1)
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20 for (int i = 0; i < n; ++i)
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21 x[i] = 100;
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22 else
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23 for (int i = 0; i < n; ++i)
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24 x[stepx * i] = 100;
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25 }
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26
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27 /* { dg-final { scan-tree-dump-times {want to version containing loop} 2 "lversion" } } */
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28 /* { dg-final { scan-tree-dump-times {can never be 1} 2 "lversion" } } */
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29 /* { dg-final { scan-tree-dump-not {versioned} "lversion" } } */