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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/96633] missed optimization?
Date: Thu, 20 Aug 2020 11:36:11 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96633

--- Comment #3 from Martin Li=C5=A1ka <marxin at gcc dot gnu.org> ---
(In reply to Alexander Monakov from comment #2)
> Martin added me to CC so I assume he wants me to chime in.

Yes, you understood very well and thanks for the reply.

...=20

> With that out of the way: striving to get efficient branchless code on th=
is
> code is not very valuable in practice, because the caller is likely to
> perform a conditional branch on the result anyway. So making isWhitespace
> branchless simply moves the misprediction cost to the caller, making the
> overall code slower.

That's very important observation!=