Regressions with [patch, libgfortran] PR35132, PR34954, and PR34974

[Jerry DeLisle]

Hans-Peter Nilsson wrote:
> On Tue, 19 Feb 2008, Jerry DeLisle wrote:
>> The attached patch combines the fixes for each of these bugs.  They have been
>> accumulating waiting for 4.4 to open and are all simple and in the same file.
>> Normally I would not clump these in one submittal, but it saves me time.
> 
> But may cause headaches at reghunts for others.
> (Not sure it would have mattered in this case, though.)
> 

All three of the patches are in the one or two lines category, it would not have 
mattered at all.

>> I have attached test cases where practical:
>>

Thank you very much for the report

--- snip ---

> A change on trunk in the range 132503:132513, which seems to
> only match this patch, caused these regressions and failures for
> cris-elf:
> 

--- snip ---
> 
> Of all the streamio_N tests, these are the only ones that fail.
> I'll have a brief look at a simulator trace.  I'll open a PR
> unless this can be resolved quickly.
> 

Please open the PR.  This appears to be target specific and I can not "see" a 
problem.  We have been calling truncate in several other places and not seen a 
problem.

I will be studying your other posts with the simulation runs and see if I can 
make anything from it.  Can you revert that portion of the patch?  Or I can send 
you a simplified reversion patch to try and confirm at least the point of 
breakage, though I think you have narrowed it down.

I am going to need your help to try some things to see what happens.

Jerry