Hello Jakub,
Please see my responses below.
Thanks,
Balaji V. Iyer.
> -----Original Message-----
> From: Jakub Jelinek [mailto:ja...@redhat.com]
> Sent: Friday, December 14, 2012 11:59 AM
> To: Iyer, Balaji V
> Cc: gcc-patches@gcc.gnu.org
> Subject: Re: [PATCH][Cilkplus] Fix pragma simd info being lost
>
> On Fri, Dec 14, 2012 at 04:59:02AM +0000, Iyer, Balaji V wrote:
> > --- tree-vect-loop.c (revision 194483)
> > +++ tree-vect-loop.c (working copy)
> > @@ -234,8 +234,8 @@
> > if (flag_enable_cilk && pragma_simd_assert_requested_p
> > (loop->pragma_simd_index))
> > {
> > - error ("Loop not vectorized. "
> > - "Exiting as requested by Pragma SIMD");
> > + fatal_error ("Loop not vectorized. "
> > + "Exiting as requested by Pragma SIMD");
> > }
> > return false;
> > }
>
> Why do you think fatal_error is the right thing here? Why doesn't normal
> error
> work? Generally, if one function contains 10 #pragma simd loops that require
> vectorization and 5 out of them aren't vectorized, it is nicer for users to
> be told
> about all 5 of them, rather than just the first one.
> fatal_error will exit immediately.
The #pragma simd assert requires the compiler to halt compilation if the loop
is not vectorized. This is why I used fatal_error. The default case is noassert.
>
> Jakub
