36 lines
1.0 KiB
C
36 lines
1.0 KiB
C
/* PR c/51628. */
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/* { dg-do compile } */
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/* { dg-options "-O" } */
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struct pair_t
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{
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char x;
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int i;
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} __attribute__((packed));
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extern struct pair_t p;
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extern int *x;
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extern void bar (int *);
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int *addr = &p.i;
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/* { dg-warning "may result in an unaligned pointer value" "" { target { ! default_packed } } .-1 } */
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int *
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foo (void)
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{
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struct pair_t arr[2] = { { 1, 10 }, { 2, 20 } };
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int *p0, *p1;
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p0 = &arr[0].i;
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/* { dg-warning "may result in an unaligned pointer value" "" { target { ! default_packed } } .-1 } */
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bar (p0);
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p1 = &arr[1].i;
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/* { dg-warning "may result in an unaligned pointer value" "" { target { ! default_packed } } .-1 } */
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bar (p1);
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bar (&p.i);
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/* { dg-warning "may result in an unaligned pointer value" "" { target { ! default_packed } } .-1 } */
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x = &p.i;
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/* { dg-warning "may result in an unaligned pointer value" "" { target { ! default_packed } } .-1 } */
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return &p.i;
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/* { dg-warning "may result in an unaligned pointer value" "" { target { ! default_packed } } .-1 } */
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}
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