Takeshi Yoneda 17b8591dcc Change OperationSwap to OperationSet (#775) ...

This commit changes wazeroir.OperationSwap to OperationSet which is the
combination of OperationSwap and Drop in the previous implementation.

Previously, OperationSwap was always followed by OperationDrop on the swapped value on top.
Because of that, we had a redundant register allocation in Swap.

As a result, we use only one register in OperationSet which is a part of translations of
local.tee and local.set.

Signed-off-by: Takeshi Yoneda takeshi@tetrate.io

2022-08-29 15:28:39 +09:00

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