gcc/testsuite/gcc.dg/fold-minus-6.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-cddce1" } */
   3
   4 int
   5 fn1 (int x)
   6 {
   7   return 42L - (42 / x) * x;
   8 }
   9
  10 long
  11 fn2 (int x)
  12 {
  13   return 42L - (42 / x) * x;
  14 }
  15
  16 int
  17 fn3 (long int x)
  18 {
  19   return 42L - (42 / x) * x;
  20 }
  21
  22 int
  23 fn4 (unsigned int a, int b)
  24 {
  25   return a - (unsigned) ((a / b) * b);
  26 }
  27
  28 int
  29 fn5 (int a, unsigned int b)
  30 {
  31   return a - ((a / b) * b);
  32 }
  33
  34 unsigned int
  35 fn6 (int a, int b)
  36 {
  37   return a - ((a / b) * b);
  38 }
  39
  40 /* { dg-final { scan-tree-dump-not " / " "cddce1" } } */
  41 /* { dg-final { scan-tree-dump-not " - " "cddce1" } } */
  42 /* { dg-final { scan-tree-dump-not " \\+ " "cddce1" } } */