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List: gcc-bugs
Subject: [Bug target/115065] AVR clz is not always fast as can be
From: "gjl at gcc dot gnu.org via Gcc-bugs" <gcc-bugs () gcc ! gnu ! org>
Date: 2024-05-18 10:24:19
Message-ID: bug-115065-4-Da7npptjI6 () http ! gcc ! gnu ! org/bugzilla/
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115065
--- Comment #1 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
IIUC, this is just about the timing of a branch, which in the general != 0 is
currently taken (takes 2 ticks), but it's better to only take it in the
non-common (= 0) case? So that the common case falls through and thus takes 1
cycle less.=
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