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scavengedrestore
2011 Dec 09
2
[LLVMdev] Spilling predicate registers
...o support 2 scavenged registers, as you already said, we would need:
> * target hook to indicate the maximum number of simultanously live
> scavenged registers needed
> * support in RegScavenger for more than one registers: instead of state
> for one register (ScavangedReg, ScavengedRC, ScavengedRestore) we need
> need an array of such states that are handled correctly
> * PEI::scavengeFrameVirtualRegs must be adopted to handle more than one
> register
> * PEI::calculateFrameObjectOffsets needs to handle the reserved scavenger
> spill slot frame indexes
I am not sure extending the...