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From: "florian.schanda at bmw dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug web/107436] New: Is -fsignaling-nans still experimental?
Date: Thu, 27 Oct 2022 15:17:52 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107436

            Bug ID: 107436
           Summary: Is -fsignaling-nans still experimental?
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: web
          Assignee: unassigned at gcc dot gnu.org
          Reporter: florian.schanda at bmw dot de
  Target Milestone: ---

Hi,

Is the following statement in the documentation on "-fsignaling-nans"
still correct?

> This option is experimental and does not currently guarantee to
> disable all GCC optimizations that affect signaling NaN behavior.

The context is that we have a safety mechanism in a third-party library
that relies signalling nans to work correctly; and if we cannot guarantee=20
it with this option it would be a major headache indeed.

Any advice (or even better statement that the experimental note is outdated
and can be deleted) would be appreciated.

Many thanks in advance!=