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From: "tschwinge at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/107344] GCC/nvptx SESE region optimization
Date: Fri, 21 Oct 2022 09:34:05 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107344

Thomas Schwinge <tschwinge at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2022-10-21
             Status|UNCONFIRMED                 |NEW

--- Comment #2 from Thomas Schwinge <tschwinge at gcc dot gnu.org> ---
Regression 'libgomp.oacc-c-c++-common/nvptx-sese-1.c' addressed, but this
remains to be looked into:

(In reply to Thomas Schwinge from comment #0)
> GCC/nvptx has a "SESE region optimization", <https://inbox.sourceware.org=
/gcc-patches/564CC75D.3020309@acm.org>.
>=20
> [...]
>=20
> During investigation of that issue (which I suppose is just one random ex=
ample), I found that earlier code transformations/optimizations may inhibit=
 this "Neuter whole SESE regions" optimization.
>=20
> It's unclear to me if this is an actual "problem", which optimization is =
"more important".=