Matt Arsenault bfe3779459 AMDGPU: Use v_perm_b32 to implement bswap ...

Also greatly improve i64 lowering. LegalizeIntegerTypes does the
correct narrowing if i64 isn't legal. Just workaround this for
SelectionDAG by making i64 legal and splitting in the patterns.

2020-02-13 09:45:31 -08:00

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