1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
#define GNUC_VERSION (__GNUC__*1000 + __GNUC_MAJOR__*10)
#if (GNUC_VERSION >= 4060) || defined(__clang__)
# pragma GCC diagnostic ignored "-Wdeprecated"
#endif
#include <altivec.h>
int main(int argc, char* argv[])
{
#if defined(_ARCH_PWR9)
#ifdef __BUILTIN_CPU_SUPPORTS__
if (__builtin_cpu_is ("power9") || __builtin_cpu_supports ("arch_3_00"))
{
// PWR9
__vector unsigned long long r = {1, 2};
__vector unsigned __int128 x = { 1000UL };
#ifdef __clang__
// early clang did not support ctz/prty but did rev
__vector unsigned long long w = vec_revb (r);
__vector unsigned __int128 z = vec_revb (x);
#else
__vector unsigned long long w = vec_vctz(r);
__vector unsigned __int128 z = vec_vprtyb (x);
#endif
return 0;
}
#else
{
// PWR9
__vector unsigned long long r = {1, 2};
__vector unsigned __int128 x = { 1000UL };
#ifdef __clang__
// early clang did not support ctz/prty but did rev
__vector unsigned long long w = vec_revb (r);
__vector unsigned __int128 z = vec_revb (x);
#else
__vector unsigned long long w = vec_vctz(r);
__vector unsigned __int128 z = vec_vprtyb (x);
#endif
return 0;
}
#endif
#else
int x[-1]; // fail compile
#endif
return -1;
}
|
