1  /* Test for stack alignment when PREFERRED_STACK_BOUNDARY > alignment
       2     of local variable.  */
       3  /* { dg-do compile } */
       4  /* { dg-options "-O2 -mpreferred-stack-boundary=6 -mincoming-stack-boundary=6" } */
       5  /* { dg-final { scan-assembler "and\[lq\]?\[\\t \]*\\$-64,\[\\t \]*%\[re\]?sp" } } */
       6  /* { dg-final { scan-assembler-not "and\[lq\]?\[\\t \]*\\$-128,\[\\t \]*%\[re\]?sp" } } */
       7  /* { dg-skip-if "Options about stack-boundary aren't support" { x86_64-*-mingw* } } */
       8  #include <stddef.h>
       9  
      10  #define ALIGNMENT 32
      11  typedef int aligned __attribute__((aligned(ALIGNMENT)));
      12  extern void abort(void);
      13  
      14  __attribute__ ((noinline))
      15  void check(void * a)
      16  {
      17    if (((ptrdiff_t)a & (ALIGNMENT-1)) != 0)
      18      abort();
      19  }
      20  
      21  int main()
      22  {
      23    aligned a = 1;
      24    check(&a);
      25    return 0;
      26  }