[llvm-commits] [llvm] r98889 - in /llvm/trunk/lib/Target/ARM: ARMISelLowering.cpp ARMISelLowering.h ARMInstrFormats.td ARMInstrInfo.td ARMInstrNEON.td ARMInstrVFP.td

[Anton Korobeynikov]

Hi, Bob

> This looks like a nice cleanup but it is causing performance regressions.  Since I don't get the impression from your commit message that this is critical to your work, I'm going to revert it for now.  If I can find a small testcase, I will certainly send it to you.  Otherwise, I may see if I can figure out what's going wrong.  Basically I'm seeing lots of things like:
>
>        vmov    r2, s2
>        vmov    s2, r2
Hrm, maybe we need to teach cross-rc coalescer to remove these moves away?

-- 
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University