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