gcc/testsuite/gcc.target/i386/lzcnt-5.c

   1 /* { dg-do compile { target { ! ia32 } } } */
   2 /* { dg-options "-O2 -mlzcnt" } */
   3 /* { dg-final { scan-assembler "lzcntq\[^\\n]*(%|)rax" } } */
   4
   5 #include <x86intrin.h>
   6
   7 unsigned int
   8 func_lzcnt64 (unsigned long long X)
   9 {
  10   return __lzcnt64(X);
  11 }