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view gcc/testsuite/c-c++-common/pr51628-9.c @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 1830386684a0 |
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/* PR c/51628. */ /* { dg-do compile } */ /* { dg-options "-O" } */ struct pair_t { int x; int i[4]; } __attribute__ ((packed)); extern struct pair_t p; extern int *x; extern void bar (int *); int *addr = p.i; /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */ int * foo (struct pair_t *p) { int *p0, *p1; p0 = p->i; /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */ bar (p0); p1 = &p->i[1]; /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */ bar (p1); bar (p->i); /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */ bar (&p->i[2]); /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */ x = p->i; /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */ return &p->i[3]; /* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */ }