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Does the error function *have* to be auto-generated in your pass? Perhaps the original code should use invokes, and your pass insert the error check with a jne to the "unwind" block. On Mon, Aug 3, 2009 at 5:18 AM, Artjom Kochtchi<artjom.kochtchi at googlemail.com> wrote: > > > Dan Gohman-2 wrote: >> >> You don't need a ModulePass to modify a CFG. A

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

...ditional (Machine)BasicBlock (or rather a MachineFunction?) somewhere in the program that contains the program termination and that I can jump to on check failure. Can't I do that during a Pass in llc? -Artjom -- View this message in context: http://www.nabble.com/code-altering-Passes-for-llc-tp24778261p24845838.html Sent from the LLVM - Dev mailing list archive at Nabble.com.