[PATCH] s390/testsuite: Fix oscbreak-1.c.

[Robin Dapp]

Hi,

> Yeah, that's because of the very limited analysis we do in the backend to detect such cases. In fact
> we probably would want to have an OSC break in many of them as well.
> 
> For me the testcase appears to work with -O2 on all the -march levels. I think -O2 would be
> preferred because that's what is most frequently used.
> 
>>
>> Is it OK?
> 
> Yes, either with -O2 or the options you have proposed if -O2 doesn't work out for you.

-O2 did not work reliably for me with different --with_arch settings. 
I'm going to commit the -O1 -fschedule-insns version then.

Regards
  Robin