1 /* { dg-do compile } */
2 /* { dg-options "-O2 -msse2 -mfpmath=sse" } */
3
4 float
foo(float a,float b,float c,float d)5 foo (float a, float b, float c, float d)
6 {
7 float ac, bd, ad, bc, y;
8
9 ac = a * c;
10 bd = b * d;
11 ad = a * d;
12 bc = b * c;
13
14 if (__builtin_expect (!__builtin_expect ((a) != (a), 0)
15 & !__builtin_expect (!__builtin_expect (((a) - (a)) != ((a) - (a)), 0), 1), 0)
16 || __builtin_expect (!__builtin_expect ((b) != (b), 0)
17 & !__builtin_expect (!__builtin_expect (((b) - (b)) != ((b) - (b)), 0), 1), 0))
18 a = __builtin_copysignf (__builtin_expect (!__builtin_expect ((a) != (a), 0)
19 & !__builtin_expect (!__builtin_expect (((a) - (a)) != ((a) - (a)), 0), 1), 0) ? 1 : 0, a);
20
21 c = __builtin_copysignf (__builtin_expect (!__builtin_expect ((c) != (c), 0) & !__builtin_expect (!__builtin_expect (((c) - (c)) != ((c) - (c)), 0), 1), 0) ? 1 : 0, c);
22 if ((__builtin_expect (!__builtin_expect ((ac) != (ac), 0)
23 & !__builtin_expect (!__builtin_expect (((ac) - (ac)) != ((ac) - (ac)), 0), 1), 0)
24 || __builtin_expect (!__builtin_expect ((bd) != (bd), 0)
25 & !__builtin_expect (!__builtin_expect (((bd) - (bd)) != ((bd) - (bd)), 0), 1), 0)
26 || __builtin_expect (!__builtin_expect ((bc) != (bc), 0) & !__builtin_expect (!__builtin_expect (((bc) - (bc)) != ((bc) - (bc)), 0), 1), 0)))
27 d = __builtin_copysignf (0, d);
28
29 y = a * d + b * c;
30
31 return y;
32 }
33