209120621a
The already allocatable DPair superclass contains odd-even D register pair in addition to the even-odd pairs in the QPR register class. There is no reason to constrain the set of D register pairs that can be used for NEON values. Any NEON instructions that require a Q register will automatically constrain the register class to QPR. The allocation order for DPair begins with the QPR registers, so register allocation is unlikely to change much. llvm-svn: 199186
431 KiB
431 KiB