27 lines
666 B
C
27 lines
666 B
C
/* PR middle-end/99578 */
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/* { dg-do compile { target int32 } } */
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/* { dg-options "-O2 -Wstringop-overflow" } */
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struct S { int a, b[4]; };
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struct T { int a, b[8192], c[4]; };
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void
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foo (struct S *p)
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{
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if (p) return;
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__builtin_memset (p->b, 0, sizeof p->b); /* { dg-warning "writing 16 bytes into a region of size 0 overflows the destination" } */
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}
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void
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bar (struct T *p)
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{
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if (p) return;
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__builtin_memset (p->c, 0, sizeof p->c); /* { dg-warning "writing 16 bytes into a region of size 0 overflows the destination" "" { xfail *-*-* } } */
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}
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void
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baz (void)
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{
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__builtin_memset ((void *) 0x8004, 0, 16); /* { dg-bogus "overflows the destination" } */
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}
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