[Bug 268497] clang15 math.h isfinite() generates unreachable-code-generic-assoc warnings

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 21 Dec 2022 19:10:05 UTC

Dimitry Andric <dim@FreeBSD.org> changed:

           What    |Removed                     |Added
             Status|New                         |Open

--- Comment #1 from Dimitry Andric <dim@FreeBSD.org> ---
As noted in the llvm issue, this was already fixed in
https://cgit.freebsd.org/src/commit/?id=e50027e38d4f for 14-CURRENT, and
cherry-picked in
https://cgit.freebsd.org/src/commit/?h=stable/13&id=8432a5a4fa3c for 13-STABLE.

Unfortunately this didn't make it in time for 13.1-RELEASE, so building
programs using math.h with clang >= 15.0 on that version will result in those
-Wunreachable-code-generic-assoc warnings.

(Note that 13.1-RELEASE ships with clang 13.0.0 so most users should never run
into this warning.)

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