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...ext iteration of register >> allocator? > > This is one approach. Another approach is to have to spiller scavange > registers, which is the subject of this enhancement request: > http://llvm.org/PR768 Can you given some references for this "scavange" thing? Google and ResearchIndex are silent on the topic. >> Also, while RegAllocLocal and RegAllocSimple directly call >> storeRegToStackSlot, I would not found any calls to that method in >> RegAllocLinearScan. Am I missing something? > > RegAllocLinearScan just does register assignment, then the code i...

On Tue, 23 May 2006, Vladimir Prus wrote: > right now, LLVM does register spilling by: > > 1. Creating stack object > 2. Passing index of that stack object to MRegisterInfo::storeRegToStackSlot > 3. At later stage, frame indices are replaced by calling to > MRegisterInfo::eliminateFrameIndex. > > This works for me, but there's slight problem. The target does not have

Hi, right now, LLVM does register spilling by: 1. Creating stack object 2. Passing index of that stack object to MRegisterInfo::storeRegToStackSlot 3. At later stage, frame indices are replaced by calling to MRegisterInfo::eliminateFrameIndex. This works for me, but there's slight problem. The target does not have "register + contant" addressing mode, so accessing frame index