[Patch, Fortran, pr70397, gcc-5, v1] [5/6 Regression] ice while allocating ultimate polymorphic

[Andre Vehreschild]

Hi all,

and here is already the follow-up. In the initial patch a safe wasn't commenced
before pulling the patch, which lead to a refactoring of the new functions node
to be partial only. Sorry for the noise.

- Andre

Am Sun, 27 Mar 2016 18:49:18 +0200
schrieb Andre Vehreschild <vehre@gmx.de>:

> Hi all,
> 
> attached is a patch to fix an ICE on allocating an unlimited polymorphic
> entity from a non-poly class or type without an length component. The routine
> gfc_copy_class_to_class() assumed that both the source and destination
> object's type is unlimited polymorphic, but in this case it is true for the
> destination only, which made gfortran look for a non-existent _len component
> in the source object and therefore ICE. This is fixed by the patch by adding
> a function to return either the _len component, when it exists, or a constant
> zero node to init the destination object's _len component with.
> 
> Bootstrapped and regtested ok on x86_64-linux-gnu/F23. (Might have some
> line deltas, because my git is a bit older. Sorry, only have limited/slow
> net-access currently.)
> 
> The same patch should be adaptable to trunk. To come...
> 
> Ok for 5-trunk?
> 
> Regards,
> 	Andre



-- 
Andre Vehreschild * Kreuzherrenstr. 8 * 52062 Aachen
Email: vehre@gmx.de * Tel: +49 241 9291018
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