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annotate gcc/testsuite/gcc.dg/tree-ssa/loop-interchange-1.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents
children 1830386684a0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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131
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1 /* { dg-do run } */
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2 /* { dg-options "-O2 -floop-interchange -fassociative-math -fno-signed-zeros -fno-trapping-math -fdump-tree-linterchange-details" } */
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3 /* { dg-skip-if "too big data segment" { avr-*-* visium-*-* } } */
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4
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5 /* Copied from graphite/interchange-4.c */
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6
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7 #define DEBUG 0
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8 #if DEBUG
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9 #include <stdio.h>
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10 #endif
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11
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12 double u[1782225];
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13
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14 static int __attribute__((noinline))
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15 foo (int N, int *res)
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16 {
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17 int i, j;
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18 double sum = 0;
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19 for (i = 0; i < N; i++)
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20 for (j = 0; j < N; j++)
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21 sum = sum + u[i + 1335 * j];
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22
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23 for (i = 0; i < N; i++)
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24 u[1336 * i] *= 2;
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25
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26 *res = sum + N + u[1336 * 2] + u[1336];
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27 }
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28
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29 extern void abort ();
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30
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31 int
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32 main (void)
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33 {
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34 int i, j, res;
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35
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36 for (i = 0; i < 1782225; i++)
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37 u[i] = 2;
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38
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39 foo (1335, &res);
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40
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41 #if DEBUG
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42 fprintf (stderr, "res = %d \n", res);
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43 #endif
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44
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45 if (res != 3565793)
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46 abort ();
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47
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48 return 0;
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49 }
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50
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51 /* { dg-final { scan-tree-dump-times "Loop_pair<outer:., inner:.> is interchanged" 1 "linterchange"} } */