[patch, gcc doc + fortran] Make -Ofast honor -fmax-stack-var-size

[Jerry DeLisle]

Looks OK, thanks.

Jerry

On 08/04/2017 12:32 PM, Thomas Koenig wrote:
> Am 04.08.2017 um 14:09 schrieb Thomas Koenig:
>> Hello world,
>>
>> the attached patch
> 
> This time, really attached, even with ChangeLog!
> 
> Regards
> 
>     Thomas
> 
> 2017-08-04  Thomas Koenig  <tkoenig@gcc.gnu.org>
> 
>         PR fortran/68829
>         * doc/invoke.texi: Document change in behvaior for -Ofast for
>         Fortran.
> 
> 2017-08-04  Thomas Koenig  <tkoenig@gcc.gnu.org>
> 
>         PR fortran/68829
>         PR fortran/81701
>         * options.c: Make -Ofast honor -fmax-stack-var-size.
>         * invoke.texi: Document change.
> 
> 2017-08-04  Thomas Koenig  <tkoenig@gcc.gnu.org>
> 
>         PR fortran/68829
>         PR fortran/81701
>         * gfortran.dg/o_fast_stacksize.90:  New test.
> 
> 
>> makes -Ofast honor -fmax-stack-var-size, and adjusts
>> the documentation in the gcc and fortran directories accordingly.
>> This is done to alleviate PR 68829, to make it possible to run -Ofast
>> with less stack usage.  I have also taken the opportunity to make
>> it a bit clearer what -fstack-arrays actually does.
>>
>> I intend to close PR 68829 once this is committed.
>>
>> Regression-tested, plus doc changes tested with "make pdf" and
>> "make dvi".
>>
>> OK for trunk for
>>
>> - the fortran subdirectory changes
>> - the gcc doc changes (if the one above is approved)
>>
>> ?
>>
>> Regards
>>
>>      Thomas
>>
>