gcc/testsuite/gcc.dg/tree-ssa/update-threading.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3
   4 typedef struct { unsigned short a; } A;
   5
   6 extern void abort (void);
   7 extern void exit (int);
   8
   9 void foo (unsigned int x)
  10 {
  11   if (x != 0x800 && x != 0x810)
  12     abort ();
  13 }
  14
  15 int
  16 main (int argc, char **argv)
  17 {
  18   int i;
  19   for (i = 0; i < 2; ++i)
  20     foo (((A) { ((!(i >> 4) ? 8 : 64 + (i >> 4)) << 8) + (i << 4) } ).a);
  21   exit (0);
  22 }
  23 /* { dg-final { scan-tree-dump-times "Invalid sum" 0 "optimized" } } */