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annotate gcc/testsuite/c-c++-common/pr51628-9.c @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
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145
1830386684a0 gcc-9.2.0
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1 /* PR c/51628. */
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2 /* { dg-do compile } */
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3 /* { dg-options "-O" } */
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4
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5 struct pair_t
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6 {
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7 int x;
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8 int i[4];
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9 } __attribute__ ((packed));
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10
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11 extern struct pair_t p;
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12 extern int *x;
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13 extern void bar (int *);
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14
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15 int *addr = p.i;
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16 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */
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17
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18 int *
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19 foo (struct pair_t *p)
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20 {
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21 int *p0, *p1;
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22 p0 = p->i;
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23 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */
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24 bar (p0);
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25 p1 = &p->i[1];
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26 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */
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27 bar (p1);
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28 bar (p->i);
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29 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */
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30 bar (&p->i[2]);
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31 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */
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32 x = p->i;
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33 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */
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34 return &p->i[3];
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35 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */
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36 }