Skip site navigation (1)Skip section navigation (2)
Date:      Wed, 17 Apr 2024 21:54:03 +0000
From:      bugzilla-noreply@freebsd.org
To:        toolchain@FreeBSD.org
Subject:   [Bug 278417] The _cvtsh_ss() intrinsic function generates illegal instructions
Message-ID:  <bug-278417-29464-iMNzqJYdy0@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-278417-29464@https.bugs.freebsd.org/bugzilla/>
References:  <bug-278417-29464@https.bugs.freebsd.org/bugzilla/>

next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D278417

--- Comment #3 from Dimitry Andric <dim@FreeBSD.org> ---
Indeed, this intrinsic is defined in f16cintrin.h, but that header is only
included by immintrin.h if __F16C__ is defined, and that macro is normally =
only
available when the CPU features support F16C.

If you force the support by adding -mf16c on the command line, you have to =
make
sure your CPU actually has this instruction, or have some other mechanism to
ensure that the function is never called unless the feature is detected at
run-time.

--=20
You are receiving this mail because:
You are the assignee for the bug.=



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-278417-29464-iMNzqJYdy0>