1 /* Test that the correct data prefetch instructions are generated for i386
2    variants that use SSE prefetch instructions.  */
3 
4 /* { dg-do compile { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
5 
6 extern void exit (int);
7 
8 char *msg = "howdy there";
9 
foo(char * p)10 void foo (char *p)
11 {
12   __builtin_prefetch (p, 0, 0);
13   __builtin_prefetch (p, 0, 1);
14   __builtin_prefetch (p, 0, 2);
15   __builtin_prefetch (p, 0, 3);
16   __builtin_prefetch (p, 1, 0);
17   __builtin_prefetch (p, 1, 1);
18   __builtin_prefetch (p, 1, 2);
19   __builtin_prefetch (p, 1, 3);
20 }
21 
main()22 int main ()
23 {
24   foo (msg);
25   exit (0);
26 }
27 
28 /* { dg-final { scan-assembler "prefetchnta" } } */
29 /* { dg-final { scan-assembler "prefetcht0" } } */
30 /* { dg-final { scan-assembler "prefetcht1" } } */
31 /* { dg-final { scan-assembler "prefetcht2" } } */
32 /* { dg-final { scan-assembler-not "prefetchw" } } */
33