[llvm-commits] [llvm] r104704 - in /llvm/trunk: include/llvm/Target/Target.td lib/Target/ARM/ARMRegisterInfo.td lib/Target/Blackfin/BlackfinRegisterInfo.td lib/Target/MBlaze/MBlazeRegisterInfo.td lib/Target/MSP430/MSP430RegisterInfo.td lib/Target

[Anton Korobeynikov]

> Is it wrong that we have ssub_0 to ssub_3? It sounds like ssub_2 and ssub_3 are not legal?
Well, this is pretty good question :) For some operations we need to
restrict to some part of register file (all that _VFP2 / _8
regclasses). And thus we have to model the whole hierarchy of subregs.

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