gcc/testsuite/gcc.target/i386/aggregate-ret1.c

   1 /* target/36834 */
   2 /* Check that, with keep_aggregate_return_pointer attribute,  callee does
   3    not pop the stack for the implicit pointer arg when returning a large
   4    structure in memory.  */
   5 /* { dg-do compile } */
   6 /* { dg-require-effective-target ia32 } */
   7
   8 struct foo {
   9   int a;
  10   int b;
  11   int c;
  12   int d;
  13 };
  14
  15 __attribute__ ((callee_pop_aggregate_return(0)))
  16 struct foo
  17 bar (void)
  18 {
  19   struct foo retval;
  20   retval.a = 1;
  21   retval.b = 2;
  22   retval.c = 3;
  23   retval.d = 4;
  24   return retval;
  25 }
  26
  27 /* { dg-final { scan-assembler-not "ret\[ \t\]\\\$4" } } */
  28
  29