| /* { dg-do compile } */ |
| /* { dg-options "-O2" } */ |
| /* { dg-final { scan-assembler-not "memcmp" } } */ |
| /* { dg-final { scan-assembler "1752394086" } } */ |
| |
| /* This should turn into four compare/jump pairs with -m32, within the |
| limit of what the tuning considers acceptable for -O2. */ |
| int cmp (char *p, char *q) |
| { |
| char *pa = __builtin_assume_aligned (p, 4); |
| char *qa = __builtin_assume_aligned (q, 4); |
| if (__builtin_memcmp (pa, qa, 16) != 0) |
| return 1; |
| return 0; |
| } |
| /* Since we have fast unaligned access, we should make a single |
| constant comparison. The constant becomes 1752394086. */ |
| int cmp2 (char *p) |
| { |
| if (__builtin_memcmp (p, "fish", 4) != 0) |
| return 1; |
| return 0; |
| } |
