[llvm-dev] Developing a pass for the backend

陳韋任 via llvm-dev llvm-dev at lists.llvm.org
Mon Feb 5 04:45:47 PST 2018

​See if this thread
http://lists.llvm.org/pipermail/llvm-dev/2017-November/119274.html help.​

2018-02-05 4:12 GMT+08:00 Pedro Lopes via llvm-dev <llvm-dev at lists.llvm.org>

> Hi,
> Is there a way to map a MachineInstr to the respective LLVM IR using a
> MachineFunctionPass (or something else) in my backend?
> I need to read some metadata associated with LLVM IR instructions and
> I was thinking of using some debug information (DebugLoc?) to do so.
> However, By inspecting the LLVM source code I have not been able to
> find any mapping between a MachineInstr and a LLVM IR Instruction.
> Thanks,
> Tiago
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Wei-Ren Chen (陳韋任)
Homepage: https://people.cs.nctu.edu.tw/~chenwj
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