__builtin_clzl code pattern

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To: gcc-help@xxxxxxxxxxx
Subject: __builtin_clzl code pattern
From: Florian Weimer via Gcc-help <gcc-help@xxxxxxxxxxx>
Date: Thu, 16 Jun 2022 21:49:20 +0200
Reply-to: Florian Weimer <fweimer@xxxxxxxxxx>
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux)

Is there a C code pattern that GCC recognizes as the __builtin_clz,
similar to what can happen for __builtin_popcountl?

Thanks,
Florian

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