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

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