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Re: [PATCH 01/13] recog: Increased max number of alternatives.


On 05/11/2015 04:01 PM, Segher Boessenkool wrote:
> On Mon, May 11, 2015 at 03:23:29PM +0200, Andreas Krebbel wrote:
>> With the vector facility support z13 mov patterns have more than 30
>> alternatives.
> 
> Wow, that is a lot!
> 
>> --- a/gcc/recog.h
>> +++ b/gcc/recog.h
>> @@ -23,7 +23,7 @@ along with GCC; see the file COPYING3.  If not see
>>  /* Random number that should be large enough for all purposes.  Also define
>>     a type that has at least MAX_RECOG_ALTERNATIVES + 1 bits, with the extra
>>     bit giving an invalid value that can be used to mean "uninitialized".  */
>> -#define MAX_RECOG_ALTERNATIVES 30
>> +#define MAX_RECOG_ALTERNATIVES 35
>>  typedef unsigned int alternative_mask;
> 
> "int" isn't at least 36 bits.

Right. That should be unsigned HOST_WIDE_INT instead.

Thanks!

-Andreas-


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