[LLVMdev] About implementing new intrinsic

[Chris Lattner]

On Sat, 31 Mar 2007, Ferad Zyulkyarov wrote:
>> IntrinsicLowering already does this.  It lets you lower intrinsics to
>> arbitrary LLVM calls, including calls to external functions.
>
> I will try to do that in IntrinscLowering class. May you point me an
> intrinsic implementation that lowers to an llvm call.

bswap expands into a series of shifts and or's, for example.  It would be 
straight-forward to expand it into a libcall if you desired.

-Chris

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