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

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Wed Oct 24 00:47:09 PDT 2012


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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