gcc/testsuite/gcc.dg/tree-ssa/reassoc-35.c

   1 /* { dg-do run { target { ! "m68k*-*-* mmix*-*-* bfin*-*-* v850*-*-* moxie*-*-* cris*-*-* m32c*-*-* fr30*-*-* mcore*-*-* powerpc*-*-* xtensa*-*-* hppa*-*-* nios2*-*-*"} } } */
   2
   3 /* { dg-options "-O2 -fno-inline -fdump-tree-reassoc1-details" } */
   4 /* { dg-additional-options "-mbranch-cost=2" { target branch_cost } } */
   5
   6 int test (unsigned int a, int b, int c)
   7 {
   8   if ((a - 43) <= 3 || (a - 75) <= 3)
   9     return b;
  10   else
  11     return c;
  12 }
  13 int
  14 main ()
  15 {
  16   volatile int n43, n47, n75, n79;
  17   n43 = 43; n47 = n43 + 4; n75 = 75; n79 = n75 + 4;
  18   int i;
  19   for (i = -10; i <= 100; i++)
  20     if (test (i, 2, 3) != 3 - ((i >= n43 && i < n47) || (i >= n75 && i < n79)))
  21       __builtin_abort ();
  22   return 0;
  23 }
  24
  25 /* { dg-final { scan-tree-dump-times "Optimizing range tests" 1 "reassoc1"} }*/