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x86iseldagtodag
2012 Apr 18
0
[LLVMdev] [cfe-dev] LLVM Backend for Z80
...ses/3.0/docs/CodeGenerator.html#selectiondag_process)
This takes some minimal effort to setup but is incredibly useful:
Run llc with all -view… options on. This will get you a first idea on where the problem occurs.
Then if you find the causing SelectionDAG pass, let's say your Select method in Z80IselDAGToDAG,
then you can set a breakpoint there and watch the state of the selection DAG on each iteration
via CurDAG->viewGraph().
Maybe that gives you an idea where the problem could be.
Cheers,
Jonas
Am 16.04.2012 um 12:51 schrieb Peter Hanzel:
> Hello.
>
> I am playing with LLVM and try...