[PATCH] D70651: [Power8] Add the MacroFusion support for Power8

[qshanz via Phabricator via llvm-commits]

steven.zhang added a comment.

The best way to do this is to add a tblgen backend which consume the TD that describe the fused instruction and produce a table that has 1:1 map for all the fused instruction pair. However, it is overkill I think. And in fact, we could add a multiple map to map one opcode with several fusion candidates but I don't think it is a good idea as we only have small groups of fusion candidates.


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  https://reviews.llvm.org/D70651/new/

https://reviews.llvm.org/D70651