[LLVMdev] [llvmdev] Whole function SelectionDAG

[Zhongxing Xu]

I am trying to build a DAG for a whole function. The first problem I met is
to assign a user for the last instruction of each basic block, be it BRCOND
or other node. There is no natural user for such nodes. Without user, it
will be removed in later phases. My idea is to use it as chain for nodes in
the next basic block. Is this reasonable?

-Zhongxing Xu
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