gcc/testsuite/gcc.dg/div-cmp-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -funsafe-math-optimizations -fdump-tree-optimized-raw" } */
   3
   4 int
   5 cmp_mul_1 (float x)
   6 {
   7   return x * 3 <= 100;
   8 }
   9
  10 int
  11 cmp_mul_2 (float x)
  12 {
  13   return x * -5 > 100;
  14 }
  15
  16 int
  17 div_cmp_1 (float x, float y)
  18 {
  19   return x / 3 <= y;
  20 }
  21
  22 int
  23 div_cmp_2 (float x, float y)
  24 {
  25   return x / 3 <= 1;
  26 }
  27
  28 /* { dg-final { scan-tree-dump-times "mult_expr" 1 "optimized" } } */
  29 /* { dg-final { scan-tree-dump-not "rdiv_expr" "optimized" } } */