gcc/testsuite/gcc.target/i386/20060125-2.c

   1 /* PR rtl-optimization/25703 */
   2 /* { dg-do run { target i?86-*-* x86_64-*-* } } */
   3 /* { dg-require-effective-target ilp32 } */
   4 /* { dg-options "-O2 -mtune=pentiumpro" } */
   5
   6 extern void abort (void);
   7
   8 struct a
   9 {
  10         int a;
  11         char b,c,d,e;
  12 };
  13
  14 __attribute__ ((noinline))
  15 __attribute__ ((regparm(1))) t(struct a a)
  16 {
  17         if (a.a!=1 || a.b!=1 || a.c!=1)
  18                         abort();
  19 }
  20
  21 int main()
  22 {
  23         struct a a;
  24         a.c=1;
  25         a.a=1;
  26         a.b=1;
  27         t(a);
  28         return 0;
  29 }
  30