1  /* { dg-do run } */
       2  /* { dg-require-effective-target ia32 } */
       3  /* { dg-require-effective-target sse2 } */
       4  /* { dg-options "-std=gnu99 -msse2 -mstackrealign -mpreferred-stack-boundary=4" } */
       5  
       6  #include "sse2-check.h"
       7  
       8  #include <emmintrin.h>
       9  
      10  __m128i __attribute__ ((__noinline__))
      11  vector_using_function ()
      12  {
      13    volatile __m128i vx;	/* We want to force a vector-aligned store into the stack.  */
      14    vx = _mm_xor_si128 (vx, vx);
      15    return vx;
      16  }
      17  int __attribute__ ((__noinline__))
      18  self_aligning_function (int x, int y)
      19  {
      20    __m128i ignored = vector_using_function ();
      21    return (x + y);
      22  }
      23  int g_1 = 20;
      24  int g_2 = 22;
      25  
      26  static void __attribute__ ((__optimize__ ("-fno-omit-frame-pointer")))
      27  sse2_test (void)
      28  {
      29    int result;
      30    register int reg asm ("ecx");
      31    asm ("pushl\t%0": : "r" (reg) : "memory"); /* Disalign runtime stack.  */
      32    result = self_aligning_function (g_1, g_2);
      33    if (result != 42)
      34      abort ();
      35    asm ("popl\t%0" : "=r" (reg));
      36  }