| /* PR middle-end/80936 - bcmp, bcopy, and bzero not declared nonnull |
| Verify that -Wnonnull is issued for calls with constant null pointers |
| with no optimization. |
| { dg-do compile } |
| { dg-options "-O0 -Wall" } */ |
| |
| void zero0 (void *p, unsigned n) |
| { |
| __builtin_memset (0, 0, n); // { dg-warning "\\\[-Wnonnull]" } |
| } |
| |
| void zero1 (void *p, unsigned n) |
| { |
| __builtin_bzero (0, n); // { dg-warning "\\\[-Wnonnull]" } |
| } |
| |
| void copy0 (void *p, const void *q, unsigned n) |
| { |
| __builtin_memcpy (0, q, n); // { dg-warning "\\\[-Wnonnull]" } |
| } |
| |
| void copy1 (void *p, const void *q, unsigned n) |
| { |
| __builtin_memcpy (0, q, n); // { dg-warning "\\\[-Wnonnull]" } |
| } |
| |
| void copy2 (void *p, const void *q, unsigned n) |
| { |
| __builtin_bcopy (q, 0, n); // { dg-warning "\\\[-Wnonnull]" } |
| } |
| |
| void copy3 (void *p, const void *q, unsigned n) |
| { |
| __builtin_bcopy (q, 0, n); // { dg-warning "\\\[-Wnonnull]" } |
| } |
| |
| int cmp0 (const void *p, const void *q, unsigned n) |
| { |
| return __builtin_memcmp (0, q, n); // { dg-warning "\\\[-Wnonnull]" } |
| } |
| |
| int cmp1 (const void *p, const void *q, unsigned n) |
| { |
| return __builtin_memcmp (0, q, n); // { dg-warning "\\\[-Wnonnull]" } |
| } |
| |
| int cmp2 (const void *p, const void *q, unsigned n) |
| { |
| return __builtin_bcmp (0, q, n); // { dg-warning "\\\[-Wnonnull]" } |
| } |
| |
| int cmp3 (const void *p, const void *q, unsigned n) |
| { |
| return __builtin_bcmp (p, 0, n); // { dg-warning "\\\[-Wnonnull]" } |
| } |