1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -mptwrite " } */
       3  /* { dg-final { scan-assembler {ptwrite[^\n\r]+%eax} } } */
       4  /* { dg-final { scan-assembler {ptwrite[^\n\r]+%rax} { target lp64 } } } */
       5  
       6  #include <x86intrin.h>
       7  
       8  void ptwrite1(void)
       9  {
      10    _ptwrite32 (1);
      11  #ifdef __x86_64__
      12    _ptwrite64 (2);
      13  #endif
      14  }