diff options
Diffstat (limited to 'gcc-4.8/gcc/testsuite/gcc.target/i386/bmi-bextr-2.c')
-rw-r--r-- | gcc-4.8/gcc/testsuite/gcc.target/i386/bmi-bextr-2.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/gcc-4.8/gcc/testsuite/gcc.target/i386/bmi-bextr-2.c b/gcc-4.8/gcc/testsuite/gcc.target/i386/bmi-bextr-2.c new file mode 100644 index 000000000..2ce625966 --- /dev/null +++ b/gcc-4.8/gcc/testsuite/gcc.target/i386/bmi-bextr-2.c @@ -0,0 +1,49 @@ +/* { dg-do run { target { bmi } } } */ +/* { dg-require-effective-target bmi } */ +/* { dg-options "-O2 -mbmi -fno-inline" } */ + +#include <x86intrin.h> + +#include "bmi-check.h" + +unsigned calc_bextr_u32 (unsigned src1, unsigned src2) +{ + unsigned res = 0; + unsigned char start = (src2 & 0xff); + unsigned char len = (int) ((src2 >> 8) & 0xff); + if (start < 32) { + unsigned i; + unsigned last = (start+len) < 32 ? start+len : 32; + + src1 >>= start; + for (i=start; i<last; ++i) { + res |= (src1 & 1) << (i-start); + src1 >>= 1; + } + } + + return res; +} + +static void +bmi_test () +{ + unsigned i; + unsigned char start, len; + unsigned src1 = 0xfacec0ff; + unsigned res, res_ref, src2; + + for (i=0; i<5; ++i) { + start = (i * 1983) % 32; + len = i + (i * 1983) % 32; + + src1 = src1 * 3; + src2 = start | (((unsigned)len) << 8); + + res_ref = calc_bextr_u32 (src1, src2); + res = __bextr_u32 (src1, src2); + + if (res != res_ref) + abort(); + } +} |