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230a0a4b40
It is simpler to define a composite index directly:
def ssub_2 : SubRegIndex<[dsub_1, ssub_0]>;
def ssub_3 : SubRegIndex<[dsub_1, ssub_1]>;
Than specifying the composite indices on each register:
CompositeIndices = [(ssub_2 dsub_1, ssub_0),
(ssub_3 dsub_1, ssub_1)] in ...
This also makes it clear that SubRegIndex composition is supposed to be
unique.
llvm-svn: 149556