[PATCH] DAGCombiner: Continue combining if FoldConstantArithmetic() fails.

[Matthias Braun]

That would obviously involve changing all targets to recognize that new node type, in all sorts of different addressing modes. I also don't know whether all of this was already discussed when OpaqueConstants were introduced. Anyway I just wanted to fix a few bugs here and not rewrite all this stuff, so this patch won't get a LGTM unless it's a rewrite of the whole OpaqueConstants concepts?

- Matthias


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http://reviews.llvm.org/D6946

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