| /* PR middle-end/95189 - memcmp being wrongly stripped like strcmp |
| { dg-do run } |
| { dg-options "-O2 -Wall" } */ |
| |
| #define AB_D "ab\0d" |
| #define ABCDEF_H "abcdef\0h" |
| #define ABCDEFGHIJKLMN_P "abcdefghijklmn\0p" |
| |
| char ab_d[] = AB_D; |
| char abcdef_h[] = ABCDEF_H; |
| |
| extern int strncmp (const char*, const char*, __SIZE_TYPE__); |
| |
| __attribute__((noipa)) void sink (const void *p, ...) { (void)&p; } |
| |
| #define strncmp(a, b, n) (sink (a, b), strncmp (a, b, n)) |
| |
| int main (void) |
| { |
| int zero = 0; |
| |
| zero += strncmp (ab_d, AB_D, 1); |
| zero += strncmp (ab_d, AB_D, 2); |
| zero += strncmp (ab_d, AB_D, 3); |
| zero += strncmp (ab_d, AB_D, 4); |
| zero += strncmp (ab_d, AB_D, 5); |
| |
| zero += strncmp (ab_d, ABCDEF_H, 1); |
| zero += strncmp (ab_d, ABCDEF_H, 2); |
| |
| zero += strncmp (abcdef_h, AB_D, 2); |
| |
| zero += strncmp (abcdef_h, ABCDEF_H, 2); |
| zero += strncmp (abcdef_h, ABCDEF_H, 3); |
| zero += strncmp (abcdef_h, ABCDEF_H, 4); |
| zero += strncmp (abcdef_h, ABCDEF_H, 5); |
| zero += strncmp (abcdef_h, ABCDEF_H, 6); |
| zero += strncmp (abcdef_h, ABCDEF_H, 7); |
| zero += strncmp (abcdef_h, ABCDEF_H, 8); |
| zero += strncmp (abcdef_h, ABCDEF_H, 9); |
| |
| if (zero != 0) |
| __builtin_abort (); |
| |
| int neg = 0; |
| |
| neg -= strncmp (ab_d, ABCDEF_H, 3) < 0; |
| neg -= strncmp (ab_d, ABCDEF_H, 4) < 0; |
| neg -= strncmp (ab_d, ABCDEF_H, 5) < 0; |
| neg -= strncmp (ab_d, ABCDEF_H, 6) < 0; |
| neg -= strncmp (ab_d, ABCDEF_H, 7) < 0; |
| neg -= strncmp (ab_d, ABCDEF_H, 8) < 0; |
| neg -= strncmp (ab_d, ABCDEF_H, 9) < 0; |
| |
| if (neg != -7) |
| __builtin_abort (); |
| } |