llvm dev - Jun 2018 - pseudo Instruction usage

Hi, I have an question which sounds pretty naive.. (sorry, I just stepped into
LLVM Backend first time)

I saw many backend source codes having Pseudo Instruction Type.

But I wonder what this Instruction type means

I feel confused with 'pseudo code' with algorithm terminology.

Could anyone make this clear what is different from those two concepts?

 
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20180614/e8c631b8/attachment.html>

On 6/13/2018 6:36 PM, 유원호 via llvm-dev wrote:
>
> Hi, I have an question which sounds pretty naive.. (sorry, I just 
> stepped into LLVM Backend first time)
>
> I saw many backend source codes having Pseudo Instruction Type.
>
> But I wonder what this Instruction type means
>
> I feel confused with 'pseudo code' with algorithm terminology.
>
> Could anyone make this clear what is different from those two concepts?
>
A "pseudo-instruction" in LLVM is a MachineInstr which doesn't 
correspond to a specific assembly instruction.  It's a placeholder which 
will get converted to a real instruction or series of instructions by 
some later pass.


-Eli

-- 
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux
Foundation Collaborative Project

-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20180613/143bfa59/attachment.html>