[LLVMdev] code-altering Passes for llc

[Artjom Kochtchi]

Dan Gohman-2 wrote:
> 
> You don't need a ModulePass to modify a CFG. A MachineFunctionPass
> is fine for this.
> 
Well, okay. But I need to insert some BasicBlock that contains the error
handling (that the runtime check jumpts to on failure). Just putting another
MachineBasicBlock at the beginning of some arbitrary MachineFunction doesn't
seem to be the right way to go, does it?
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