[llvm-dev] Instruction selection for 'load' based on static vs. dynamic data

[Krzysztof Parzyszek via llvm-dev]

On 5/9/2017 8:16 AM, Dr. ERDI Gergo wrote:
> 
> Can I also use something more complex than a single machine load 
> instruction here? I.e. can I write something like
> 
> def: Pat<(ld (add (WRAPPER RC:$addr), (sign_extend RC:$offset))),
>           (load_instruction_rr (special_add RC:$addr, RC:$offset))>;
> 
> ? Or do I have to go via some pseudo-instruction for that?

You can have any tree of machine instructions as the output.

-Krzysztof

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