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From: "crazylht at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug d/109221] std.math.floor, core.math.ldexp, std.math.poly poor inlining
Date: Tue, 21 Mar 2023 07:19:18 +0000 [thread overview]
Message-ID: <bug-109221-4-cNe7f7IIeq@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-109221-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109221
Hongtao.liu <crazylht at gmail dot com> changed:
What |Removed |Added
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CC| |crazylht at gmail dot com
--- Comment #5 from Hongtao.liu <crazylht at gmail dot com> ---
(In reply to Andrew Pinski from comment #4)
> With -ffast-math -mfpmath=387,sse (or -mavx512f instead of -mfpmath=387 as
> there is a avx512f instruction too) added, ldexp gets inlined.
Note, vscaless accept a float32 operand for exp which is int32 in ldexpf, there
maybe some precision loss to convert an int32 to float32, that's why Ofast is
needed here.
prev parent reply other threads:[~2023-03-21 7:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-21 1:09 [Bug d/109221] New: " witold.baryluk+gcc at gmail dot com
2023-03-21 1:15 ` [Bug d/109221] " witold.baryluk+gcc at gmail dot com
2023-03-21 1:18 ` witold.baryluk+gcc at gmail dot com
2023-03-21 1:26 ` pinskia at gcc dot gnu.org
2023-03-21 1:37 ` pinskia at gcc dot gnu.org
2023-03-21 7:19 ` crazylht at gmail dot com [this message]
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