[PATCH] (Partial) Implementation of simplificaiton of CSHIFT

[Tim Prince]

On 11/21/2015 1:07 PM, H.J. Lu wrote:
> On Sat, Nov 21, 2015 at 8:26 AM, Steve Kargl
> <sgk@troutmask.apl.washington.edu> wrote:
>> On Sat, Nov 21, 2015 at 11:41:51AM +0100, Paul Richard Thomas wrote:
>>> Just a couple of small typos:
>>> "Unexpected expr_type cause an ICE" ;  causes?
>>> "! An array of derived types workd too." ; works?
>>>
>>> Apart from that it's OK for trunk.
>>>
>>> Thanks for the patch
>>>
>> Thanks for the the review.  I don't have a clue as
>> to how to do simplification for rank > 2. :(
>>
> It breaks bootstrap:
>
>   int dm;
>
>   /* DIM is only useful for rank > 1, but deal with it here as one can
>      set DIM = 1 for rank = 1.  */
>   if (dim)
>     {
>       if (!gfc_is_constant_expr (dim))
> return NULL;
>       dm = mpz_get_si (dim->value.integer);
>     }
>   else
>     dm = 1;
>
> dm is set, but never used.
>
> H.J.
It's bootstrapping OK for me, after cleaning out build directory.  I
have --disable-werror, as there are plenty of other places it would trigger.

-- 
Tim Prince