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annotate gcc/testsuite/gcc.dg/vshift-7.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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111
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1 /* { dg-do compile } */
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2 /* { dg-options "-O1 -Wshift-count-negative -Wshift-count-overflow" } */
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3
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4 typedef unsigned int v1qi_t __attribute__((mode(QI), vector_size(1)));
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5 typedef unsigned int v1hi_t __attribute__((mode(HI), vector_size(2)));
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6 typedef unsigned int v1si_t __attribute__((mode(SI), vector_size(4)));
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7
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8 static const signed shift_neg = -1;
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9 static const unsigned shift_qi = 8;
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10 static const unsigned shift_hi = 16;
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11 static const unsigned shift_si = 32;
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12
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13 v1qi_t test1qi(v1qi_t x, int c) {
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14 switch(c) {
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15 case 0: return x << shift_neg; /* { dg-warning "shift count is negative" } */
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16 case 1: return x << (shift_qi - 1);
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17 case 2: return x << shift_qi; /* { dg-warning "shift count >= width" } */
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18 case ~0: return x >> shift_neg; /* { dg-warning "shift count is negative" } */
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19 case ~1: return x >> (shift_qi - 1);
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20 case ~2: return x >> shift_qi; /* { dg-warning "shift count >= width" } */
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21 }
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22 return c < 0 ? x >> -c : x << c;
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23 }
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24
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25 v1hi_t test1hi(v1hi_t x, int c) {
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26 switch(c) {
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27 case 0: return x << shift_neg; /* { dg-warning "shift count is negative" } */
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28 case 1: return x << (shift_hi - 1);
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29 case 2: return x << shift_hi; /* { dg-warning "shift count >= width" } */
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30 case ~0: return x >> shift_neg; /* { dg-warning "shift count is negative" } */
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31 case ~1: return x >> (shift_hi - 1);
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32 case ~2: return x >> shift_hi; /* { dg-warning "shift count >= width" } */
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33 }
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34 return c < 0 ? x >> -c : x << c;
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35 }
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36
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37 v1si_t test1si(v1si_t x, int c) {
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38 switch(c) {
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39 case 0: return x << shift_neg; /* { dg-warning "shift count is negative" } */
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40 case 1: return x << (shift_si - 1);
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41 case 2: return x << shift_si; /* { dg-warning "shift count >= width" } */
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42 case ~0: return x >> shift_neg; /* { dg-warning "shift count is negative" } */
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43 case ~1: return x >> (shift_si - 1);
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44 case ~2: return x >> shift_si; /* { dg-warning "shift count >= width" } */
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45 }
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46 return c < 0 ? x >> -c : x << c;
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47 }