[LLVMbugs] [Bug 14159] [AVX] Frame Pointer unnecessarily created for AVX functions

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=14159

Anton Korobeynikov <asl at math.spbu.ru> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |asl at math.spbu.ru
         Resolution|                            |WONTFIX

--- Comment #2 from Anton Korobeynikov <asl at math.spbu.ru> 2012-10-24 02:47:09 CDT ---
This is chicken-and-egg problem. The frame pointer will be required in the case
when reg alloc would introduce spill of AVX reg. However, this is too late to
reserve frame pointer and reserving of such will change the regalloc decisions.

Please reopen if you will have better ideas how to solve such problem.

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