1 /* { dg-do compile } */
2 /* { dg-require-effective-target ia32 } */
3 /* { dg-skip-if "" { *-*-* } { "-march=*" } { "-march=i486" } } */
4 /* { dg-options "-O2 -march=i486" } */
5
6 void
foo(unsigned long long * p)7 foo (unsigned long long *p)
8 {
9 unsigned long long tmp;
10 tmp = *p;
11 tmp = (tmp >> 32) | (tmp << 32);
12 tmp = (((tmp & 0xff00ff00ff00ff00ULL) >> 8)
13 | ((tmp & 71777214294589695ULL) << 8));
14 *p = (((tmp & 0xffff0000ffff0000ULL) >> 16)
15 | ((tmp & 281470681808895ULL) << 16));
16 }
17
18 /* { dg-final { scan-assembler-times "bswap" 2 } } */
19