[LLVMdev] adding an optional flag edge to a BRIND node

[Rafael Espíndola]

Is there any way to add an optional flag edge to a BRIND node? I In
the ARM backend I lower returns directly to BRINDs, so I need to add
an edge connecting the BRIND and the CopyToReg that sets the return
value. The other option is to create an ARM specific node that is
identical to BRIND except for having a flag edge.

Thanks,
Rafael