Selectively disable vectorization

[Ulrich Weigand]

Mans Rullgard <mans.rullgard at linaro.org> wrote on 11.04.2012 18:21:46:
> On 11 April 2012 16:16, Ulrich Weigand <Ulrich.Weigand at de.ibm.com> wrote:
> > "Singh, Ravi Kumar (Ravi)" <Ravi.Singh at lsi.com> wrote:
> >
> >> Are there any pragmas for selectively disabling (in one chunk of
> >> code) the vectorization, when its enabled globally.
> >
> > No, there are not (just like for all optimization settings).
>
> Are you saying __attribute__((optimise("foo"))) is a lie?

No, you're of course correct.   __attribute__((optimize)) is
supposed to work, as is #pragma GCC optimize.

[ The reason I said otherwise was that I erroneously thought
this attribute required back-end support which we don't have
on ARM yet.  I guess I mixed this up with __attribute__((target)),
which indeed is not supported on ARM. ]

Sorry for causing extra confusion.


Mit freundlichen Gruessen / Best Regards

Ulrich Weigand

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