[llvm-dev] is a MachineBasicBlock a kind of superblock?

[Chris Sears via llvm-dev]

Thanks Hal,

Ok, I think I get this now and so it makes sense that getFirstTerminal()
iterates from the terminal to the end. Also, I found a quote from Chris
Lattner on the dev list:

    This informs the code generator that any spill code has to go above the
instructions

Target.td says, somewhat tautologically:

    bit isTerminator = 0; // Is this part of the terminator for a basic
block?

Maybe that can be replaced with Chris Lattner's explanation.

C
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