[llvm-dev] ARM Static Base Register

[Stephen Crane via llvm-dev]

Hi all,

I'm trying to see if I can use a global static base register instead of
PC-relative addressing. I see that I can easily reserve R9 in the ARM
Subtarget, but this doesn't let me use it. I found a TODO in
ARMAsmPrinter.cpp that refers to this:
  // TODO: We currently only support either reserving the register, or
treating
  // it as another callee-saved register, but not as SB or a TLS pointer

Has anyone tried to do this before? Any pointers or suggestions? I figured
I would check with the list before diving into implementation.

Thanks,
Stephen
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