[Bug ipa/63851] [5 Regression] ipa-icf miscompiles gfortran.dg/assumed_rank_(8|9|10).f90 at -O2 and above

[howarth at bromo dot med.uc.edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63851

--- Comment #10 from howarth at bromo dot med.uc.edu ---
(In reply to Dominique d'Humieres from comment #8)
> Results with the patch in comment 5 at
> https://gcc.gnu.org/ml/gcc-testresults/2014-12/msg02164.html.
> 
> Note that the test gfortran.dg/assumed_rank_10.f90 fails at run time when
> compiled with '-O2 -funroll-loops -m32'. Without '-funroll-loops' the test
> succeeds at run time.

Also '-O1 -fipa-icf -funroll-loops -m32' produces a assumed_rank_10.exe which
fails the execution test while '-O0 -fipa-icf -funroll-loops -m32' produces one
which passes.