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170

answers:

1
Q: 

Building interference graph

How can I build an interference graph so I may use it in register allocation ? How do I determine live-ranges?

+1  A: 

Live ranges are usually detected with liveness analysis for basic blocks. Liveness analysis can be computed using dominance frontiers.

A Simple, Fast Dominance Algorithm is a good read. I implemented both dominance and liveness analysis for a code analysis framework. You may have a look here and here.

Joa Ebert  2009-12-27 20:09:32

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