search for: machinecfg

On Aug 6, 2009, at 5:45 AM, Artjom Kochtchi wrote: > So I was searching for a possibility to include an additional > (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? If you just have a magic block of instructions you want to

Kenneth Uildriks wrote: > > 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. > If I understand correctly, unwind is some kind of exception handling in LLVM IR? I'm not sure if this is the right thing. First, I include runtime

...I'll try to finish it by early next week at the latest. In the meantime, these are the specific bugzilla issues I've opened: 22716 <http://llvm.org/bugs/show_bug.cgi?id=22716>librarieGlobal A dnovillo at google.comNEW---Need a mechanism to represent global profile counts in CFG and MachineCFG <http://llvm.org/bugs/show_bug.cgi?id=22716> 16:47:0122718 <http://llvm.org/bugs/show_bug.cgi?id=22718>librarieGlobal A dnovillo at google.comNEW---Information loss and performance issues in branch probability representation <http://llvm.org/bugs/show_bug.cgi?id=22718> 17:37:39227...

We (Google) have started to look more closely at the profiling infrastructure in LLVM. Internally, we have a large dependency on PGO to get peak performance in generated code. Some of the dependencies we have on profiling are still not present in LLVM (e.g., the inliner) but we will still need to incorporate changes to support our work on these optimizations. Some of the changes may be addressed