[LLVMdev] machine pass

Villmow, Micah Micah.Villmow at amd.com
Wed Apr 28 19:35:48 PDT 2010

 Please look at llvm\lib\Target\X86\X86FloatingPointRegKill.cpp as an example on how to write a Machine pass.

In the backend that you want to add the pass to, modify the <X>TargetMachine.cpp file and add the pass to addPreEmitPass()


From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On Behalf Of dan mihai
Sent: Wednesday, April 28, 2010 2:47 PM
To: llvmdev at cs.uiuc.edu
Subject: [LLVMdev] machine pass


LLVM documentation is not clear. Is it possible to write a machine pass?
I am trying to insert some machine code before the return instruction.
ideally, I'd like a pass that runs the last one before generating assembly.
How can this be done?

Thank you,

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