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comparison 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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131:84e7813d76e9 145:1830386684a0
1 /* PR c/51628. */
2 /* { dg-do compile } */
3 /* { dg-options "-O" } */
4
5 struct pair_t
6 {
7 int x;
8 int i;
9 } __attribute__((packed, aligned (2)));
10
11 extern struct pair_t p;
12 extern int *x;
13 extern void bar (int *);
14
15 int *addr = &p.i;
16 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */
17
18 int *
19 foo (void)
20 {
21 struct pair_t arr[2] = { { 1, 10 }, { 2, 20 } };
22 int *p0, *p1;
23 p0 = &arr[0].i;
24 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */
25 bar (p0);
26 p1 = &arr[1].i;
27 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */
28 bar (p1);
29 bar (&p.i);
30 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */
31 x = &p.i;
32 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */
33 return &p.i;
34 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */
35 }