gcc/testsuite/gcc.target/i386/vararg-2.c

   1 /* PR middle-end/36859 */
   2 /* { dg-do run } */
   3 /* { dg-options "-w" { target { lp64 } } } */
   4 /* { dg-options "-w" { target { llp64 } } } */
   5 /* { dg-options "-w -msse2 -mpreferred-stack-boundary=2" { target { ilp32 } } } */
   6 /* { dg-require-effective-target sse2 } */
   7
   8 #include "sse2-check.h"
   9 #include <stdarg.h>
  10 #include <emmintrin.h>
  11
  12 __m128
  13 __attribute__((noinline))
  14 test (int a, ...)
  15 {
  16   __m128 x;
  17   va_list va_arglist;
  18
  19   va_start (va_arglist, a);
  20   x = va_arg (va_arglist, __m128);
  21   va_end (va_arglist);
  22   return x;
  23 }
  24
  25 __m128 n1 = { -283.3, -23.3, 213.4, 1119.03 };
  26
  27 int
  28 __attribute__((noinline))
  29 foo (void)
  30 {
  31   __m128 x = test (1, n1);
  32   if (__builtin_memcmp (&x, &n1, sizeof (x)) != 0)
  33     abort ();
  34   return 0;
  35 }
  36
  37 static void
  38 __attribute__((noinline))
  39 sse2_test (void)
  40 {
  41   foo ();
  42 }