https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115344

Andi Kleen <andi-gcc at firstfloor dot org> changed:

           What    |Removed                     |Added
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                 CC|                            |andi-gcc at firstfloor dot org

--- Comment #2 from Andi Kleen <andi-gcc at firstfloor dot org> ---

If you go back long enough the RTL loop optimizer used to support that. It
broke at some point, even before that one was removed.

>so the doloop candidate isn't added?

x86 doesn't have hardware do loops, it's only for some obscure targets like
some DSPs.

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