[LLVMdev] Some questions on SelectionDAG (original) (raw)

Andrew Trick atrick at apple.com
Tue Sep 6 11:21:18 PDT 2011


On Sep 2, 2011, at 3:14 AM, Zakk wrote:

2. The MVT::glue value is used to ensure two nodes are scheduled together and in order.

In the other word, we can’t insert any instruction of them in the scheduling, is it correct? preRA scheduling should keep them adjacent. But later MachineInstr passes, such as postRA scheduling may shuffle them around.

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