[LLVMdev] Lowering Call Return

Krzysztof Parzyszek kparzysz at codeaurora.org
Tue Sep 4 11:35:46 PDT 2012

On 9/4/2012 11:16 AM, Khaled Mohammed wrote:
> Is there an option to do sret demotion via a register? if yes, do we
> have a Target to see an example implementation?

Hi Khaled,

Check out X86TargetLowering::LowerReturn, and the call to getSRetReturnReg.

The SRetReturnReg looks like a hack (each target that uses it, declares 
this variable individually), but that seems to be the current way of 
handling it.


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