[LLVMdev] [llvmdev] Whole function SelectionDAG
gohman at apple.com
Fri Jun 11 09:35:33 PDT 2010
On Jun 11, 2010, at 12:48 AM, Zhongxing Xu <xuzhongxing at gmail.com>
> I have another idea: let the BasicBlockSDNode points to the last
> node in its predecessor blocks. But this will introduce cycles into
> the selection DAG, making it not a DAG anymore.
> So what's the impact of a non-DAG on the existing DAG legalizers and
Lots of stuff would break, for example anything that uses the
topological sort facility.
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