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annotate gcc/testsuite/c-c++-common/pr51628-3.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
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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;
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9 } __attribute__((packed, aligned (2)));
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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 (void)
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20 {
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21 struct pair_t arr[2] = { { 1, 10 }, { 2, 20 } };
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22 int *p0, *p1;
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23 p0 = &arr[0].i;
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24 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */
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25 bar (p0);
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26 p1 = &arr[1].i;
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27 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */
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28 bar (p1);
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29 bar (&p.i);
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30 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */
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31 x = &p.i;
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32 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */
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33 return &p.i;
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34 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */
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35 }