diff options
Diffstat (limited to 'gcc-4.8/gcc/testsuite/gcc.target/i386/bmi2-bzhi32-1.c')
-rw-r--r-- | gcc-4.8/gcc/testsuite/gcc.target/i386/bmi2-bzhi32-1.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/gcc-4.8/gcc/testsuite/gcc.target/i386/bmi2-bzhi32-1.c b/gcc-4.8/gcc/testsuite/gcc.target/i386/bmi2-bzhi32-1.c new file mode 100644 index 000000000..68df8b71d --- /dev/null +++ b/gcc-4.8/gcc/testsuite/gcc.target/i386/bmi2-bzhi32-1.c @@ -0,0 +1,35 @@ +/* { dg-do run { target { bmi2 } } } */ +/* { dg-options "-mbmi2 -O2" } */ + +#include <x86intrin.h> +#include "bmi2-check.h" + +__attribute__((noinline)) +unsigned +calc_bzhi_u32 (unsigned a, int l) +{ + unsigned res = a; + int i; + for (i = 0; i < 32 - l; ++i) + res &= ~(1 << (31 - i)); + + return res; +} + +static void +bmi2_test () +{ + unsigned i; + unsigned src = 0xce7ace0f; + unsigned res, res_ref; + + for (i = 0; i < 5; ++i) { + src = src * (i + 1); + + res_ref = calc_bzhi_u32 (src, i * 2); + res = _bzhi_u32 (src, i * 2); + + if (res != res_ref) + abort(); + } +} |