[LLVMdev] CodeEmitterGen

[Christopher Lamb]

I noticed that the TableGen code emitter generator assumes that the  
instruction fields are declared in the instruction format in the same  
order that operands are defined. This seems like a bad dependence to  
me, and that TableGen should match the name of field declared in the  
instruction with the name of the operand in order to determine which  
operand of the MI to use
.
See CodeEmitterGen.cpp:170 and neighborhood.

Unfortunately there are naming discrepancies between the instruction  
format fields and the operand names in all existing code emitters  
that use TableGen, which would require some significant renaming  
cleanup.

Thoughts on binding operand names to instruction field names for the  
code emitter?
--
Christopher Lamb



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