[LLVMdev] request for help on getting started

[Rekha R]

Hi,
I intend to write an optimization using LLVM. But before doing that I felt
like understanding the tools. I wrote a hello world program to be compiled
and executed. But then one of the tutorials suggested using Clang, an other
said dragonegg, a third suggested using llvm-gcc. I am confused as to which
one to use. Can some one help me in

1. What are the differences between these three?
2. Which one best serves my ultimate purpose of developing an machine
independent optimizer using LLVM?
3. Can someone give me step-by-step instructions to compile and execute
this simple hello world C program?

thanks,
Rekha

-- 
Rekha
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