[LLVMdev] [LLVMDev] Live Intervals and Finding the next usage

[Jeff Kunkel]

I am looking for the slot index of a register around the given slot index
Min. Is there a better way than the linear search:

...
findDefUsesAroundIndex( LiveInterval* li, SlotIndex Min )
...
  for( MachineOperand * mo = MRI->getRegUseDefListHead(li->reg);
    mo; mo = mo->getNextOperandForReg() )
  {
    SlotIndex si = SI->getInstructionIndex( use.getOperand().getParent() );
    if( Min.distance(si) >= 0 )
...

- Thanks
Jeff Kunkel


On Thu, Jan 20, 2011 at 8:37 AM, Jeff Kunkel <jdkunk3 at gmail.com> wrote:

> I have a live interval, and I would like to find out what SlotIndex the
> next use the register will occur? Is there any way to map a live interval
> back into instructions or SlotIndexes or blocks used by?
>
> - Thanks
> Jeff Kunkel
>
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