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From: Randy Bush <randy@psg.com>
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Subject: Re: clang tautology
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and, for a bonus, clang buildworld ...

/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcc/config/i386/i386.md:196:14: note: use '=' to turn this equality comparison into an assignment
(ix86_tune)) == (
             ^~
             =

randy