Mercurial > hg > CbC > CbC_gcc
comparison gcc/testsuite/c-c++-common/pr51628-9.c @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
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date | Thu, 13 Feb 2020 11:34:05 +0900 |
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131:84e7813d76e9 | 145:1830386684a0 |
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1 /* PR c/51628. */ | |
2 /* { dg-do compile } */ | |
3 /* { dg-options "-O" } */ | |
4 | |
5 struct pair_t | |
6 { | |
7 int x; | |
8 int i[4]; | |
9 } __attribute__ ((packed)); | |
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 (struct pair_t *p) | |
20 { | |
21 int *p0, *p1; | |
22 p0 = p->i; | |
23 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */ | |
24 bar (p0); | |
25 p1 = &p->i[1]; | |
26 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */ | |
27 bar (p1); | |
28 bar (p->i); | |
29 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */ | |
30 bar (&p->i[2]); | |
31 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */ | |
32 x = p->i; | |
33 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */ | |
34 return &p->i[3]; | |
35 /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */ | |
36 } |