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/* PR middle-end/80936 - bcmp, bcopy, and bzero not declared nonnull
Verify that with optimization, -Wnonnull is issued for calls with
non-constant arguments determined to be null.
{ dg-do compile }
{ dg-options "-O2 -Wall" } */
#define NOIPA __attribute__ ((noipa))
NOIPA void zero0 (void *p, unsigned n)
{
if (p == 0)
__builtin_memset (p, 0, n); // { dg-warning "\\\[-Wnonnull]" }
}
NOIPA void zero1 (void *p, unsigned n)
{
if (p == 0)
__builtin_bzero (p, n); // { dg-warning "\\\[-Wnonnull]" }
}
NOIPA void copy0 (void *p, const void *q, unsigned n)
{
if (p == 0)
__builtin_memcpy (p, q, n); // { dg-warning "\\\[-Wnonnull]" }
}
NOIPA void copy1 (void *p, const void *q, unsigned n)
{
if (q == 0)
__builtin_memcpy (p, q, n); // { dg-warning "\\\[-Wnonnull]" }
}
NOIPA void copy2 (void *p, const void *q, unsigned n)
{
if (p == 0)
__builtin_bcopy (q, p, n); // { dg-warning "\\\[-Wnonnull]" }
}
NOIPA void copy3 (void *p, const void *q, unsigned n)
{
if (q == 0)
__builtin_bcopy (q, p, n); // { dg-warning "\\\[-Wnonnull]" }
}
NOIPA int cmp0 (const void *p, const void *q, unsigned n)
{
if (p == 0)
return __builtin_memcmp (p, q, n); // { dg-warning "\\\[-Wnonnull]" }
return 0;
}
NOIPA int cmp1 (const void *p, const void *q, unsigned n)
{
if (q == 0)
return __builtin_memcmp (p, q, n); // { dg-warning "\\\[-Wnonnull]" }
return 0;
}
NOIPA int cmp2 (const void *p, const void *q, unsigned n)
{
if (p == 0)
return __builtin_bcmp (p, q, n); // { dg-warning "\\\[-Wnonnull]" }
return 0;
}
NOIPA int cmp3 (const void *p, const void *q, unsigned n)
{
if (q == 0)
return __builtin_bcmp (p, q, n); // { dg-warning "\\\[-Wnonnull]" }
return 0;
}
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