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annotate gcc/testsuite/gcc.dg/pr48335-4.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 /* PR middle-end/48335 */
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2 /* { dg-do compile } */
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3 /* { dg-options "-O2 -fno-tree-sra" } */
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4
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5 typedef short U __attribute__((may_alias, aligned (1)));
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6
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7 struct S
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8 {
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9 double d;
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10 };
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11
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12 void bar (struct S);
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13
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14 void
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15 f1 (int x)
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16 {
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17 struct S s = { .d = 0.0 };
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18 ((U *)((char *) &s.d + 1))[-1] = x;
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19 __real__ s.d *= 7.0;
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20 bar (s);
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21 }
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22
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23 void
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24 f2 (int x)
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25 {
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26 struct S s = { .d = 0.0 };
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27 ((U *)((char *) &s.d + 1))[-2] = x;
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28 __real__ s.d *= 7.0;
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29 bar (s);
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30 }
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31
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32 void
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33 f3 (int x)
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34 {
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35 struct S s = { .d = 0.0 };
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36 ((U *)((char *) &s.d + 1))[5] = x;
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37 __real__ s.d *= 7.0;
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38 bar (s);
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39 }