[PATCH] During PHI elimination, split critical edges that move copies out of loops

[Daniel Jasper]

The old code is already removed in the latest version of the patch.

I think the "unlucky" ordering happens in three tests as per my previous comment and it also regresses benchmarks in our internal suite, although I haven't looked closely at which ones. Thus, I have guarded the new behavior by a flag now as Quentin suggested. I'll then try to fix the unlucky behavior and see whether that also improves benchmarks.


http://reviews.llvm.org/D8016

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