[LLVMdev] Let expressions at file scope combined with defm

[Sky Flyer]

Hi all,

I try to run such a line in TableGen but seems it's not working.
What is the problem with this code?

multiclass cond {
    let Inst{1-0}=0b11 in defm fxy: ConditionalALU;
    ....
}

I receive this error:

test.td:162:11: error: expected '=' in let expression
  let Inst{1-0}=0b11 in defm fxy: ConditionalALU;
            ^
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