gcc/testsuite/gcc.target/i386/pr24306.c

   1 /* { dg-do run } */
   2 /* { dg-options "-msse" } */
   3 /* { dg-require-effective-target sse } */
   4
   5 #include "sse-check.h"
   6
   7 extern void abort(void);
   8 typedef int __attribute__ ((vector_size (16))) foo_t;
   9
  10 struct s
  11 {
  12   foo_t f[0];
  13 } s1;
  14
  15 void
  16 check (int x, ...) __attribute__((noinline));
  17 void
  18 check (int x, ...)
  19 {
  20   int y;
  21   __builtin_va_list ap;
  22
  23   __builtin_va_start (ap, x);
  24   __builtin_va_arg (ap, struct s);
  25   y = __builtin_va_arg (ap, int);
  26
  27   if (y != 7)
  28     abort ();
  29 }
  30
  31 static void
  32 sse_test (void)
  33 {
  34   check (3, s1, 7);
  35 }