gcc/testsuite/gcc.c-torture/execute/pr56799.c

   1 /* { dg-require-effective-target int32plus } */
   2
   3 #include <stdio.h>
   4 typedef struct { int x; int y;} S;
   5 extern int foo(S*);
   6 int hi = 0, lo = 0;
   7
   8 int main()
   9 {
  10   S a;
  11   int r;
  12   a.x = (int) 0x00010000;
  13   a.y = 1;
  14   r = foo (&a);
  15   if (r == 2 && lo==0 && hi==1)
  16     {
  17       exit (0);
  18     }
  19   abort ();
  20 }
  21
  22 typedef unsigned short u16;
  23
  24 __attribute__ ((noinline)) int foo (S* ptr)
  25 {
  26   int a = ptr->x;
  27   int c = 0;
  28   u16 b = (u16) a;
  29   if (b != 0)
  30   {
  31     lo = 1;
  32     c += ptr->y;
  33   }
  34   b = a >> 16;
  35   if (b != 0)
  36   {
  37     hi = 1;
  38     c+= ptr->y;
  39   }
  40   c += ptr->y;
  41   return c;
  42 }
  43
  44