gcc/testsuite/gcc.target/i386/bmi-blsmsk-2.c

   1 /* { dg-do run { target { bmi } } } */
   2 /* { dg-options "-O2 -mbmi -fno-inline" } */
   3
   4 #include <x86intrin.h>
   5
   6 #include "bmi-check.h"
   7
   8 /*  Trick compiler in order not to generate target insn here. */
   9 int calc_blsmsk_u32 (int src1, int src2)
  10 {
  11   return (src1-1) ^ (src2);
  12 }
  13
  14 static void
  15 bmi_test ()
  16 {
  17   unsigned i;
  18   int src = 0xfacec0ff;
  19   int res, res_ref;
  20
  21   for (i=0; i<5; ++i) {
  22     src = i + src << i;
  23
  24     res_ref = calc_blsmsk_u32 (src, src);
  25     res = __blsmsk_u32 (src);
  26
  27     if (res != res_ref)
  28       abort();
  29   }
  30 }