[PATCH 2/5] Add function tree_code_in_cst.

[Erick Ochoa]

On 02/06/2020 14:29, Richard Biener wrote:
> On Sat, May 30, 2020 at 12:18 AM Jan Hubicka <hubicka@ucw.cz> wrote:
>>
>>>
>>> ---
>>>   gcc/tree.h | 11 +++++++++++
>>>   1 file changed, 11 insertions(+)
>>>
>>> diff --git a/gcc/tree.h b/gcc/tree.h
>>> index bd0c51b2a18..86a4542f58b 100644
>>> --- a/gcc/tree.h
>>> +++ b/gcc/tree.h
>>> @@ -6156,6 +6156,17 @@ int_bit_position (const_tree field)
>>>          + wi::to_offset (DECL_FIELD_BIT_OFFSET (field))).to_shwi ();
>>>   }
>>>
>>> +/* Determine if tree code is a constant */
>>> +inline bool
>>> +tree_code_is_cst (tree op)
>>> +{
>>> +  int code = TREE_CODE (op);
>>> +  if (code == INTEGER_CST || code == REAL_CST || code == COMPLEX_CST
>>> +      || code == VECTOR_CST)
>>> +    return true;
>>> +  return false;
>>
>> We have is_gimple_ip_invariant which I think should suit your purpose -
>> it return true if tree is a constant, it also accepts things like
>> addresses of (global) variables, functions and labels.
> 
> And otherwise there's CONSTANT_CLASS_P ().
> 
> Richard.

Thanks, I'll check these suggestions and remove unnecessary code!

> 
>>> +}
>>> +
>>>   /* Return true if it makes sense to consider alias set for a type T.  */
>>>
>>>   inline bool
>>> --
>>> 2.18.1
>>>