[llvm] r275284 - Fix for Bug 26903, adds support to inline __builtin_mempcpy

[Krzysztof Parzyszek via llvm-commits]

On 7/13/2016 1:07 PM, Eli Friedman via llvm-commits wrote:
> Shouldn't the lowering be done in SimplifyLibCalls, as opposed to
> SelectionDAG?

It's not really a simplification. Actually, the code becomes more 
"complicated". There was some discussion about where to do this in the 
review, but there was no place that would stand out as the most logical 
choice.

-Krzysztof

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