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From: "amonakov at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/106277] missed-optimization: redundant movzx
Date: Wed, 13 Jul 2022 16:06:05 +0000 [thread overview]
Message-ID: <bug-106277-4-RNxiRJzaSp@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-106277-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106277
Alexander Monakov <amonakov at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |amonakov at gcc dot gnu.org
--- Comment #2 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
You probably mean the addition, not the load.
It cannot: it really is an 8-bit addition, and if pseudo 91 is allocated to
e.g. AH or another "high" 8-bit register, there really will need to be an
explicit zero-extend.
prev parent reply other threads:[~2022-07-13 16:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-13 2:16 [Bug middle-end/106277] New: " jl1184 at duke dot edu
2022-07-13 15:49 ` [Bug target/106277] " pinskia at gcc dot gnu.org
2022-07-13 16:06 ` amonakov at gcc dot gnu.org [this message]
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