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annotate gcc/testsuite/gcc.dg/vect/slp-widen-mult-u8.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children 1830386684a0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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111
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1 /* { dg-require-effective-target vect_int } */
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2
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3 #include <stdarg.h>
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4 #include "tree-vect.h"
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5
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6 #define N 64
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7
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8 unsigned char X[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63};
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9 unsigned char Y[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {64,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1};
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10
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11 unsigned short result[N];
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12
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13 /* char->short widening-mult */
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14 __attribute__ ((noinline)) int
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15 foo1(int len) {
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16 int i;
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17
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18 for (i=0; i<len/2; i++) {
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19 result[2*i] = X[2*i] * Y[2*i];
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20 result[2*i+1] = X[2*i+1] * Y[2*i+1];
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21 }
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22 }
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23
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24 int main (void)
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25 {
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26 int i;
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27
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28 check_vect ();
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29
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30 foo1 (N);
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31
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32 for (i=0; i<N; i++) {
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33 if (result[i] != X[i] * Y[i])
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34 abort ();
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35 }
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36
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37 return 0;
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38 }
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39
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40 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { vect_widen_mult_qi_to_hi || vect_unpack } } } } */
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41 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { target { vect_widen_mult_hi_to_si || vect_unpack } } } } */
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42