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annotate gcc/testsuite/gcc.dg/vect/vect-avg-1.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
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131
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1 /* { dg-require-effective-target vect_int } */
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2
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3 #include "tree-vect.h"
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4
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5 #define N 50
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6
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7 #ifndef SIGNEDNESS
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8 #define SIGNEDNESS unsigned
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9 #endif
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10 #ifndef BIAS
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11 #define BIAS 0
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12 #endif
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13
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14 void __attribute__ ((noipa))
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15 f (SIGNEDNESS char *restrict a, SIGNEDNESS char *restrict b,
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16 SIGNEDNESS char *restrict c)
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17 {
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18 for (__INTPTR_TYPE__ i = 0; i < N; ++i)
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19 a[i] = (b[i] + c[i] + BIAS) >> 1;
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20 }
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21
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22 #define BASE1 ((SIGNEDNESS int) -1 < 0 ? -126 : 4)
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23 #define BASE2 ((SIGNEDNESS int) -1 < 0 ? -101 : 26)
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24
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25 int
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26 main (void)
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27 {
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28 check_vect ();
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29
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30 SIGNEDNESS char a[N], b[N], c[N];
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31 for (int i = 0; i < N; ++i)
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32 {
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33 b[i] = BASE1 + i * 5;
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34 c[i] = BASE2 + i * 4;
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35 asm volatile ("" ::: "memory");
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36 }
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37 f (a, b, c);
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38 for (int i = 0; i < N; ++i)
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39 if (a[i] != ((BASE1 + BASE2 + i * 9 + BIAS) >> 1))
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40 __builtin_abort ();
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41 return 0;
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42 }
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43
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44 /* { dg-final { scan-tree-dump "vect_recog_average_pattern: detected" "vect" } } */
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45 /* { dg-final { scan-tree-dump {\.AVG_FLOOR} "vect" { target vect_avg_qi } } } */
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46 /* { dg-final { scan-tree-dump-not {vector\([^\n]*short} "vect" { target vect_avg_qi } } } */
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47 /* { dg-final { scan-tree-dump-times "vectorized 1 loop" 1 "vect" { target vect_avg_qi } } } */