[LLVMdev] Need guidance regarding MachineFunctionPass implementation

[sachin arora]

Thank you Mr. John and Mr. David !

Regards,
Vipin

On Wed, Sep 17, 2014 at 6:21 PM, John Criswell <jtcriswel at gmail.com> wrote:

>  Dear Sachin,
>
> You will want to read up on the LLVM Code Generator infrastructure:
> http://llvm.org/docs/CodeGenerator.html#machine-code-description-classes
>
> Also, a MachineFunctionPass is nearly the same as an LLVM FunctionPass
> except that it operations on MachineFunction objects instead of Function
> objects.  If you read the "Writing an LLVM Pass" document (
> http://llvm.org/docs/WritingAnLLVMPass.html) and understand how to use
> MachineInstr's, MachineBasicBlocks, and MachineInstr's, you should be able
> to figure it out.
>
> Finally, take a look at the doxygen documentation anytime you need details
> on how to use a specific LLVM class, and as David suggested, take a look at
> existing code.
>
> Regards,
>
> John Criswell
>
>
>
> On 9/17/14, 4:44 PM, sachin arora wrote:
>
> Hello all,
>
>  I need to modify llvm bytecode / native code just before it is emitted
> i.e. after all the regular operations and optimizations are done. I was
> told that this can be achieved by implementing a MachineFunctionPass.
> I searched the internet for some tutorials or some example
> MachineFunctionPass but found nothing. Kindly point some links, or anything
> that may help. Thank you.
>
>  Regards,
> Sachin
>
>
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>
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