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annotate gcc/testsuite/gcc.dg/tree-ssa/ldist-5.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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111
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1 /* { dg-do compile { target int32plus } } */
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2 /* { dg-options "-O2 -ftree-loop-distribution -fdump-tree-ldist-all" } */
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3
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4 int loop1 (int k)
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5 {
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6 unsigned int i;
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7 unsigned int j;
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8 int a[100][100], b[100][100], c[100][100], d[100][100];
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9
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10 a[0][0] = k;
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11 for (i = 1; i < 100; i ++)
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12 for (j = 1; j < (100-1); j++)
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13 {
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14 a[i][j] = k * i; /* S1 */
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15 b[i][j] = a[i][j-1] + k; /* S2 */
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16 c[i][j] = b[i][j] + a[i][j+1]; /* S3 */
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17 d[i][j] = c[i][j] + k + i; /* S4 */
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18 }
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19 /* Dependences:
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20 S1->S2 (flow, level 2)
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21 S1->S3 (anti, level 2)
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22 S2->S3 (flow, level 0)
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23 S3->S4 (flow, level 0)
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24 */
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25
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26 return a[100-1][100-1] + b[100-1][100-1] + c[100-1][100-1] + d[100-1][100-1];
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27 }
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28
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29 /* FIXME: This is XFAILed because of a data dependence analysis
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30 problem: the dependence test fails with a "don't know" relation. */
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31
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32 /* { dg-final { scan-tree-dump-times "distributed: split to 2 loops" 1 "ldist" { xfail *-*-* } } } */