[llvm-dev] Return value from TargetLowering::LowerOperation?

[Matt Arsenault via llvm-dev]

> On Jan 22, 2016, at 08:02, Tom Stellard via llvm-dev <llvm-dev at lists.llvm.org> wrote:
> 
>> * The same SDValue as LowerOperation was called on.
> 
> This tells the legalizer that the input node is legal.

I thought SDValue() does this. The same op is supposed to defer to the generic legalization
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