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| author | Owen Anderson <resistor@mac.com> | 2010-10-21 20:21:49 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2010-10-21 20:21:49 +0000 |
| commit | d451f888b85d01caa586b0d45bacb41836fd2c31 (patch) | |
| tree | 871ddff72fec1c2379a429b7e25692e436aa144e /lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | |
| parent | 5b924809e4a62ddc0221cd355e834ecec22bbf40 (diff) | |
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
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp')
0 files changed, 0 insertions, 0 deletions