1 /* PR regression/21897 */
2 /* This testcase generates MMX instructions together with x87 instructions.
3    Currently, there is no "emms" generated to switch between register sets,
4    so the testcase fails for targets where MMX insns are enabled.  */
5 /* { dg-options "-mno-mmx" { target { x86_64-*-* i?86-*-* } } } */
6 
7 extern void abort (void);
8 
9 typedef unsigned short v4hi __attribute__ ((vector_size (8)));
10 typedef float v4sf __attribute__ ((vector_size (16)));
11 
12 union
13 {
14   v4hi v;
15   short s[4];
16 } u;
17 
18 union
19 {
20   v4sf v;
21   float f[4];
22 } v;
23 
24 void
foo(void)25 foo (void)
26 {
27   unsigned int i;
28   for (i = 0; i < 2; i++)
29     u.v += (v4hi) { 12, 32768 };
30   for (i = 0; i < 2; i++)
31     v.v += (v4sf) { 18.0, 20.0, 22 };
32 }
33 
34 int
main(void)35 main (void)
36 {
37   foo ();
38   if (u.s[0] != 24 || u.s[1] != 0 || u.s[2] || u.s[3])
39     abort ();
40   if (v.f[0] != 36.0 || v.f[1] != 40.0 || v.f[2] != 44.0 || v.f[3] != 0.0)
41     abort ();
42   return 0;
43 }
44