[LLVMdev] PHI instruction -- How to avoid and how to remove?

[SHEN Hao]

Dear all,

Is there anyone knows how to configure the llvm-gcc to avoid generate
the PHI instruction in the bytecode?
If not possible, can you explain me what's the real idea of the PHI
instruction and how to replace this instruction with a group of other
instructions?

Thanks a lot.
-- 
Hao Shen