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111
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1 /* { dg-do compile } */
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131
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2 /* { dg-require-effective-target bswap } */
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111
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3 /* { dg-require-effective-target stdint_types } */
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4 /* { dg-options "-O2 -fdump-tree-bswap" } */
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5 /* { dg-additional-options "-mzarch" { target s390*-*-* } } */
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6
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7 #include <stdint.h>
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8
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9 unsigned char data[8];
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10
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11 struct uint64_st {
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12 unsigned char u0, u1, u2, u3, u4, u5, u6, u7;
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13 };
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14
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15 uint64_t read_le64_1 (void)
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16 {
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17 return (uint64_t) data[0] | ((uint64_t) data[1] << 8)
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18 | ((uint64_t) data[2] << 16) | ((uint64_t) data[3] << 24)
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19 | ((uint64_t) data[4] << 32) | ((uint64_t) data[5] << 40)
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20 | ((uint64_t) data[6] << 48) | ((uint64_t) data[7] << 56);
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21 }
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22
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23 uint64_t read_le64_2 (struct uint64_st data)
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24 {
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25 return (uint64_t) data.u0 | ((uint64_t) data.u1 << 8)
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26 | ((uint64_t) data.u2 << 16) | ((uint64_t) data.u3 << 24)
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27 | ((uint64_t) data.u4 << 32) | ((uint64_t) data.u5 << 40)
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28 | ((uint64_t) data.u6 << 48) | ((uint64_t) data.u7 << 56);
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29 }
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30
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31 uint64_t read_le64_3 (unsigned char *data)
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32 {
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33 return (uint64_t) *data | ((uint64_t) *(data + 1) << 8)
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34 | ((uint64_t) *(data + 2) << 16) | ((uint64_t) *(data + 3) << 24)
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35 | ((uint64_t) *(data + 4) << 32) | ((uint64_t) *(data + 5) << 40)
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36 | ((uint64_t) *(data + 6) << 48) | ((uint64_t) *(data + 7) << 56);
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37 }
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38
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39 uint64_t read_be64_1 (void)
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40 {
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41 return (uint64_t) data[7] | ((uint64_t) data[6] << 8)
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42 | ((uint64_t) data[5] << 16) | ((uint64_t) data[4] << 24)
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43 | ((uint64_t) data[3] << 32) | ((uint64_t) data[2] << 40)
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44 | ((uint64_t) data[1] << 48) | ((uint64_t) data[0] << 56);
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45 }
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46
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47 uint64_t read_be64_2 (struct uint64_st data)
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48 {
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49 return (uint64_t) data.u7 | ((uint64_t) data.u6 << 8)
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50 | ((uint64_t) data.u5 << 16) | ((uint64_t) data.u4 << 24)
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51 | ((uint64_t) data.u3 << 32) | ((uint64_t) data.u2 << 40)
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52 | ((uint64_t) data.u1 << 48) | ((uint64_t) data.u0 << 56);
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53 }
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54
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55 uint64_t read_be64_3 (unsigned char *data)
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56 {
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57 return (uint64_t) *(data + 7) | ((uint64_t) *(data + 6) << 8)
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58 | ((uint64_t) *(data + 5) << 16) | ((uint64_t) *(data + 4) << 24)
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59 | ((uint64_t) *(data + 3) << 32) | ((uint64_t) *(data + 2) << 40)
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60 | ((uint64_t) *(data + 1) << 48) | ((uint64_t) *data << 56);
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61 }
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62
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63 /* { dg-final { scan-tree-dump-times "64 bit load in target endianness found at" 3 "bswap" } } */
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64 /* { dg-final { scan-tree-dump-times "64 bit bswap implementation found at" 3 "bswap" } } */
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