[patch, libgfortran] PR53029 missed optimization in internal read (without implied-do-loop)

[Thomas Koenig]

Hi Jerry,

> Regression tested on x86_64. I have added a test case which will check 
> the execution time of the loop. The previous results of the REAd were 
> correct, just took a long time on large arrays.
> 
> OK for trunk?

OK.

It might be good if you followed Manfred's suggestion and turned
down the timeout to something like 0.5 seconds.

Thanks for the patch!

I would also consider backporting, the speedup is just so
large.  What do others think?

Regards

	Thomas