Dear Paul, thanks for the review!
I cry foul at this point :-) I have gone gallivanting off to try to fix really horrid regressions like 52012, whilst you are have fun doing interesting things.....
Well, that way my revenge for not getting a review for my default-initializer patch since over a week ... ;-)
I hope that fixing the regression will not be too complicated, it didn't look trivial, though. I have to admit that I didn't quite see whether gfortran currently does a reallocation or not. In principle it shouldn't if the shape doesn't change - especially not if the left-hand side has the target attribute.
I notice that you are making good use of recent additions to trans-expr.c. Should we do trans-class.c before the release?
Maybe. Though, I have to admit, having those macros in trans-expr.c is also fine with me.
Tobias
