[gfortran, testsuite] Fix bounds checking for substrings, enable bounds chekcing in dg testsuite, assorted fixes

[Tobias Schlüter]

Dorit Nuzman <DORIT@il.ibm.com> wrote on Tue, 12 Dec 2006:

> Tobias Schlüter <tobias.schlueter@physik.uni-muenchen.de> wrote on
> 12/12/2006 16:00:15:
>
>> Dorit Nuzman <DORIT@il.ibm.com> wrote on Sun, 10 Dec 2006:
>> >> WRT the rest of the discussion, I'd like to point out that -O3
>> >> -ftree-vectorize currently ICEs on a few testcases (PR30087), which is
>> >
>> > Does this patch fix the problem?:
>> > http://gcc.gnu.org/ml/gcc/2006-12/msg00267.html
>>
>> I can't tell.  After a few days of not being able to bootstrap, I'm
>> now running into trouble with the testsuite: the linker invoked in the
>> testsuite doesn't find libgfortranbegin.
>>
>> > To overcome the problem Andrew mentions here -
>> > http://gcc.gnu.org/ml/gcc-patches/2006-12/msg00532.html,
>> > you can look at how gcc.dg/vect/vect.exp computes which target options
> to
>> > use with -ftree-vectorize.
>>
>> This looks very useful, thanks for the pointer.  Do you think that it
>> makes sense to test gfortran with -ftree-vectorize or are vect
>> testsuites comprehensive enough?
>>
>
> The vect testsuite is supposed to exercise all the different features of
> the vectorizer, but surely we could use more testing (especially if it's
> loop intensive code).
>
> dorit
>
>> Thanks,
>> - Tobi
>>
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>
>
>



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