Displaying 1 result from an estimated 1 matches for "livein_begin".
2014 Aug 21
3
[LLVMdev] Liveness information still usable after register allocation?
Hi all,
Sorry to bother those not interested in this problem.
I have a problem while I want to reuse the liveness information after
register allocation.
When I use the livein_begin() from MachineBasicBlock to get the live-in
registers after
register alloction. I found that the liveness information is sometime
incorrect. For example,
some registers should be live-in to the machine basic block as these
registers are upward exposed
in this machine basic block.
Therefore, I wond...