diff options
Diffstat (limited to 'gcc-4.8/gcc/testsuite/gcc.target/i386/bmi2-pdep64-1.c')
-rw-r--r-- | gcc-4.8/gcc/testsuite/gcc.target/i386/bmi2-pdep64-1.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/gcc-4.8/gcc/testsuite/gcc.target/i386/bmi2-pdep64-1.c b/gcc-4.8/gcc/testsuite/gcc.target/i386/bmi2-pdep64-1.c new file mode 100644 index 000000000..f718b2f35 --- /dev/null +++ b/gcc-4.8/gcc/testsuite/gcc.target/i386/bmi2-pdep64-1.c @@ -0,0 +1,38 @@ +/* { dg-do run { target { bmi2 && { ! ia32 } } } } */ +/* { dg-options "-mbmi2 -O2" } */ + +#include <x86intrin.h> +#include "bmi2-check.h" + +__attribute__((noinline)) +unsigned long long +calc_pdep_u64 (unsigned long long a, unsigned long long mask) +{ + unsigned long long res = 0; + unsigned long long i, k = 0; + + for (i = 0; i < 64; ++i) + if (mask & (1LL << i)) { + res |= ((a & (1LL << k)) >> k) << i; + ++k; + } + return res; +} + +static void +bmi2_test () +{ + unsigned long long i; + unsigned long long src = 0xce7acce7acce7ac; + unsigned long long res, res_ref; + + for (i = 0; i < 5; ++i) { + src = src * (i + 1); + + res_ref = calc_pdep_u64 (src, ~(i * 3)); + res = _pdep_u64 (src, ~(i * 3)); + + if (res != res_ref) + abort(); + } +} |