gcc/testsuite/gcc.dg/pr38932.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2" } */
   3
   4 /* This variable needed only to exercise FRE instead of CCP.  */
   5 unsigned char g;
   6
   7 extern void abort();
   8
   9 void f (long long int p)
  10 {
  11   g = 255;
  12   if (p >= (-9223372036854775807LL - 1) - (signed char) g)
  13     p = 1;
  14
  15   if (p)
  16     abort ();
  17 }
  18
  19