llvm dev - May 2015 - [LLVMdev] How to propagate an information about an Instr. from IR to MachineInstr

Hello,


 
My objective is to duplicate some identified instructionsfor "fault
tolerance" purpose,
and for that, I plugged my pass after the register allocation to avoid the
SSAform.

So actually, what I want to do is to mark those instructionsI want to duplicate
at IR level and propagate that mark until MachineInstrlevel where the
duplication is done.

By mark I mean any information that can help me to find outthe instructions I
have already identified earlier.

Is there any way to do so?

Thank you in advance


Thierno Barry
http://thiernobarry.fr/
 
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