[Bug middle-end/41082] [4.5 Regression] FAIL: gfortran.fortran-torture/execute/where_2.f90 execution, -O3 -g with -m64

[rguenther at suse dot de]

------- Comment #27 from rguenther at suse dot de  2009-12-20 13:48 -------
Subject: Re:  [4.5 Regression] FAIL:
 gfortran.fortran-torture/execute/where_2.f90 execution,  -O3 -g with -m64

On Sun, 20 Dec 2009, irar at il dot ibm dot com wrote:

> ------- Comment #26 from irar at il dot ibm dot com  2009-12-20 13:46 -------
> I think the problem is in alignment. We force alignment of temp.6 and temp.20 -
> the arrays of relevant comaprison results - even though we don't vectorize
> their loop. The decision whether we can force alignment is made in
> vect_can_force_dr_alignment_p(), and it seems that the only target specific
> query there is comparison with MAX_STACK_ALIGNMENT.

That sounds odd.  If we don't make use of the extra alignment how
should it affect generated code or even correctness?

Richard.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41082