ID_rem is not used

The C front-end generates ID_floatbv_mod and ID_floatbv_rem; ID_rem is never
generated.

Author: kroening

src/goto-programs/adjust_float_expressions.cpp

@@ -41,9 +41,9 @@ static bool have_to_adjust_float_expressions(const exprt &expr)
     type.id() == ID_floatbv ||
     (type.id() == ID_complex && type.subtype().id() == ID_floatbv))
   {
-    if(expr.id()==ID_plus || expr.id()==ID_minus ||
-       expr.id()==ID_mult || expr.id()==ID_div ||
-       expr.id()==ID_rem)
+    if(
+      expr.id() == ID_plus || expr.id() == ID_minus || expr.id() == ID_mult ||
+      expr.id() == ID_div)
       return true;
   }
 
@@ -95,9 +95,9 @@ void adjust_float_expressions(exprt &expr, const exprt &rounding_mode)
     type.id() == ID_floatbv ||
     (type.id() == ID_complex && type.subtype().id() == ID_floatbv))
   {
-    if(expr.id()==ID_plus || expr.id()==ID_minus ||
-       expr.id()==ID_mult || expr.id()==ID_div ||
-       expr.id()==ID_rem)
+    if(
+      expr.id() == ID_plus || expr.id() == ID_minus || expr.id() == ID_mult ||
+      expr.id() == ID_div)
     {
       DATA_INVARIANT(
         expr.operands().size() >= 2,
@@ -115,7 +115,6 @@ void adjust_float_expressions(exprt &expr, const exprt &rounding_mode)
               expr.id()==ID_minus?ID_floatbv_minus:
               expr.id()==ID_mult?ID_floatbv_mult:
               expr.id()==ID_div?ID_floatbv_div:
-              expr.id()==ID_rem?ID_floatbv_rem:
                                 irep_idt());
 
       expr.operands().resize(3);