[PATCH] [MachO] Implement -order_file as a separate ordering pass.

[Rui Ueyama]

My understanding is that in all architectures we basically want to sort atoms in the same order as they are ordered in the command line (file order and then in-file order). I looked at the history of the LayoutPass and found that the pass actually did that before. I think we want to restore that behavior, and apply that pass for all archs.

Each arch then optionally run a pass to (stable-) sort atoms after the LayoutPass to tweak the sort result.

I think this separation should work for all architectures and I think this separation is clean and nice.


http://reviews.llvm.org/D7212

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