[PATCH] Add nonnull in CodeGen for __attribute__((nonnull))

Hal Finkel hfinkel at anl.gov
Fri Jul 11 10:13:19 PDT 2014

----- Original Message -----
> From: "Aaron Ballman" <aaron.ballman at gmail.com>
> To: reviews+D4472+public+47c3563e7d77bf55 at reviews.llvm.org
> Cc: "Hal Finkel" <hfinkel at anl.gov>, "Richard Smith" <richard at metafoo.co.uk>, "Nick Lewycky" <nlewycky at google.com>,
> "llvm cfe" <cfe-commits at cs.uiuc.edu>
> Sent: Friday, July 11, 2014 11:23:26 AM
> Subject: Re: [PATCH] Add nonnull in CodeGen for __attribute__((nonnull))
> On Fri, Jul 11, 2014 at 10:13 AM, hfinkel at anl.gov <hfinkel at anl.gov>
> wrote:
> > Hi rsmith, nlewycky, aaron.ballman,
> >
> > We now have an LLVM-level nonnull attribute that can be applied to
> > function parameters, and we emit it for reference types (as of
> > r209723), but we don't yet emit it when a __attribute__((nonnull))
> > is provided. This patch adds support for turning
> >     __attribute__((nonnull))  on the source level into nonnull at
> > the IR level.

Thanks. Interestingly, your fix in r212827 may have broken this. I'm investigating, but if you have any thoughts please let me know.


> ~Aaron

Hal Finkel
Assistant Computational Scientist
Leadership Computing Facility
Argonne National Laboratory

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