[llvm-dev] Post SSA, not tracking liveness

[Lawrence, Peter via llvm-dev]

With   "-print-machineinstrs"  I'm seeing this message

# Machine code for function main: Post SSA, not tracking liveness"

But I see "<kill>", and "<dead>",   info in the printout,
The question is,  does "not tracking liveness" mean this info is invalid / out-of-date ???
If so, what do I do to ensure that it is valid ???
I ask because I'm writing a post-RA  MachineFunctionPass that requires this info.


Or to put it another way,
If the info is invalid why are we printing it out ?
Otherwise if the info is valid what does "not tracking liveness" mean ?


--Peter Lawrence.
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