The register specified for a dregpair is the corresponding Q register, so to get the pair, we need to look up the sub-regs based on the qreg. Create a lookup function since we don't have access to TargetRegisterInfo here to be able to use getSubReg(ARM::dsub_[01]).
The register specified for a dregpair is the corresponding Q register, so to
get the pair, we need to look up the sub-regs based on the qreg. Create a
lookup function since we don't have access to TargetRegisterInfo here to
be able to use getSubReg(ARM::dsub_[01]).

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@113875 91177308-0d34-0410-b5e6-96231b3b80d8

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