gcc/testsuite/gcc.dg/torture/stackalign/regparm-1.c

   1 /* { dg-do run { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
   2
   3 #include "check.h"
   4
   5 #ifndef ALIGNMENT
   6 #define ALIGNMENT       64
   7 #endif
   8
   9 typedef int aligned __attribute__((aligned(ALIGNMENT)));
  10
  11 int test_nested (int i)
  12 {
  13   aligned y;
  14
  15   int __attribute__ ((__noinline__, __regparm__(2))) foo (int j, int k, int l)
  16   {
  17     aligned x;
  18
  19     if (check_int (&x,  __alignof__(x)) != x)
  20       abort ();
  21
  22     if (x != 20)
  23       abort ();
  24
  25     return i + j + k + l;
  26   }
  27
  28   if (check_int (&y,  __alignof__(y)) != y)
  29     abort ();
  30
  31   if (y != 20)
  32     abort ();
  33
  34   return foo(i, i+1, i+2) * i;
  35 }
  36
  37 int __attribute__ ((__noinline__, __regparm__(3), __force_align_arg_pointer__))
  38 test_realigned (int j, int k, int l)
  39 {
  40   aligned y;
  41
  42   if (check_int (&y,  __alignof__(y)) != y)
  43     abort ();
  44
  45   if (y != 20)
  46     abort ();
  47
  48   return j + k + l;
  49 }
  50
  51 int main ()
  52 {
  53   if (test_nested(10) != 430)
  54     abort ();
  55
  56   if (test_realigned(10, 11, 12) != 33)
  57     abort ();
  58
  59   return 0;
  60 }