[llvm-dev] Need to help on how to write An LLVM Register Allocator pass

[Balasaheb Dabhade via llvm-dev]

Hello All,

I wanted to write new register allocation pass. To start with, I have used
graph coloring based allocation sample file[Gcra.cpp].  I am tring build
the LLVM after dropping this file into lib/CodeGen, and adding references
to createGcra to include/lib/CodeGen/Passes.h and
include/lib/CodeGen/LinkAllCodeGenComponents.h.

I am getting following error while building the LLVM.
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