[LLVMbugs] [Bug 12461] clang does not optimize some recursive function

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=12461

Chandler Carruth <chandlerc at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |chandlerc at gmail.com
         Resolution|                            |INVALID

--- Comment #1 from Chandler Carruth <chandlerc at gmail.com> 2012-04-05 06:31:10 CDT ---
There is already a FIXME in the new inliner to start handling cases like this
where the result is a constant.

The case of rotating a recursive function to a loop is probably interesting,
but we don't usually track missed optimizations in bugzilla unless they are
responsible for severe performance problems somewhere, or regressions. This
would be better added to the target README as a missed optimization.

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