[Bug rtl-optimization/104405] Inefficient register allocation on complex arithmetic

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104405

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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           Severity|normal                      |enhancement
                 CC|                            |ebotcazou at gcc dot gnu.org

--- Comment #6 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> But seems to me a simple enough thing that we should be able to handle.

Register allocation is a global problem though, so what happens on toy examples
is not always representative of what happens in real world code because there
is a lot of heuristics involved and you want to tune it for the latter case,
not for the former case.