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ARM encodes Q registers as 2xregno (i.e. the number of the D register that correspond...
authorOwen Anderson <resistor@mac.com>
Thu, 21 Oct 2010 20:21:49 +0000 (20:21 +0000)
committerOwen Anderson <resistor@mac.com>
Thu, 21 Oct 2010 20:21:49 +0000 (20:21 +0000)
commitd451f888b85d01caa586b0d45bacb41836fd2c31
tree871ddff72fec1c2379a429b7e25692e436aa144e
parent5b924809e4a62ddc0221cd355e834ecec22bbf40
ARM encodes Q registers as 2xregno (i.e. the number of the D register that corresponds to the lower
half of the Q register), rather than with just regno.  This allows us to unify the encodings for
a lot of different NEON instrucitons that differ only in whether they have Q or D register operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117056 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/ARM/ARMBaseInfo.h
lib/Target/ARM/ARMInstrFormats.td
lib/Target/ARM/ARMInstrNEON.td