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\[lq\]?\[\\t \]*\\$-128,\[\\t \]*%\[re\]?sp" } } */
       6  /* { dg-final { scan-assembler-not "and\[lq\]?\[\\t \]*\\$-64,\[\\t \]*%\[re\]?sp" } } */
       7  /* { dg-skip-if "Options about stack-boundary aren't support" { x86_64-*-mingw* } } */
       8  
       9  #include <stddef.h>
      10  
      11  #define ALIGNMENT 128
      12  
      13  typedef int aligned __attribute__((aligned(ALIGNMENT)));
      14  extern void abort(void);
      15  
      16  __attribute__ ((noinline))
      17  void check(void * a)
      18  {
      19    if (((ptrdiff_t)a & (ALIGNMENT-1)) != 0)
      20      abort();
      21  }
      22  
      23  int main()
      24  {
      25    aligned a = 1;
      26    check(&a);
      27    return 0;
      28  }