| /* { dg-do run { target { bmi2 && { ! ia32 } } } } */ |
| /* { dg-options "-mbmi2 -O2 -dp" } */ |
| |
| #include "bmi2-check.h" |
| |
| __attribute__((noinline)) |
| unsigned long long |
| calc_rorx_u64 (unsigned long long a, int l) |
| { |
| unsigned long long volatile res = a; |
| int i; |
| for (i = 0; i < l; ++i) |
| res = (res >> 1) | ((res&1)<< 63); |
| |
| return res; |
| } |
| |
| #define SHIFT_VAL 0x1e |
| |
| static void |
| bmi2_test () |
| { |
| unsigned i; |
| unsigned long long src = 0xce7ace0ce7ace0; |
| unsigned long long res, res_ref; |
| |
| for (i = 0; i < 5; ++i) { |
| src = src * (i + 1); |
| |
| res_ref = calc_rorx_u64 (src, SHIFT_VAL); |
| res = (src >> SHIFT_VAL) | (src << (64 - SHIFT_VAL)); |
| |
| if (res != res_ref) |
| abort(); |
| } |
| } |