https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109028

--- Comment #3 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Andrew Pinski from comment #1)
> X87 code generation is definitely not as optimized as other code really.

You are wrong here.

> Also fcmov is newish.

It is because fcmov would require two memory loads in front of fcmov.

And because conditional moves on x86 are real PITA performance wise.

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