From: Richard Biener <richard.guenther@gmail.com>
To: Marc Glisse <marc.glisse@inria.fr>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>
Subject: Re: Allow some NOP conversions in (X+CST1)+CST2 in match.pd
Date: Wed, 24 May 2017 08:47:00 -0000 [thread overview]
Message-ID: <CAFiYyc1faHMj2_cQ5XDQkC9y14n92qkW+pvFZ3w2Qr_etDr+YQ@mail.gmail.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1705212114270.1178@stedding.saclay.inria.fr>
On Sun, May 21, 2017 at 9:22 PM, Marc Glisse <marc.glisse@inria.fr> wrote:
> Hello,
>
> generalizing a bit one transformation, to avoid a regression with another
> patch I am working on. Handling conversions always gets messy :-( It would
> have been easier to stick to scalars and wide_int, but since the existing
> transformation handles vectors, I didn't want to regress.
The pattern looks a bit unwieldly now ;) I pondered a bit but
couldn't really find
a better way to handle things.
Thus, ok.
Richard.
> Bootstrap+testsuite on powerpc64le-unknown-linux-gnu.
>
> 2017-05-22 Marc Glisse <marc.glisse@inria.fr>
>
> gcc/
> * match.pd ((A +- CST1) +- CST2): Allow some conversions.
> * tree.c (drop_tree_overflow): Handle COMPLEX_CST and VECTOR_CST.
>
> gcc/testsuite/
> * gcc.dg/tree-ssa/addadd.c: New file.
>
> --
> Marc Glisse
next prev parent reply other threads:[~2017-05-24 8:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-21 19:45 Marc Glisse
2017-05-24 8:47 ` Richard Biener [this message]
2017-05-27 8:30 ` Jakub Jelinek
2017-05-27 8:41 ` Marc Glisse
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