[LLVMdev] adding a codegen pass into llvm

[marwayusuf at feng.bu.edu.eg]

Dear All
I really need your help in this issue. I'm stuck in this step. I tried a lot of suggestions but nothing worked.
The question is: How I apply my pass (which is a machine function pass) on some program?
Any help is - really - appreciated. 

Regards,
Marwa Yusuf
Teaching Assistant - Computer Engineering Department
Faculty of Engineering - Benha University
E-JUST MSc Student
Computer Science & Engineering Dept.
________________________________________
From: llvmdev-bounces at cs.uiuc.edu [llvmdev-bounces at cs.uiuc.edu] on behalf of marwayusuf at feng.bu.edu.eg [marwayusuf at feng.bu.edu.eg]
Sent: Thursday, February 14, 2013 2:25 PM
To: John Criswell
Cc: llvmdev at cs.uiuc.edu
Subject: Re: [LLVMdev] adding a codegen pass into llvm

Thanks a million for replying. Your answer helped me. I inspected the errors more closely - with the help of my supervisor - and managed to solve some problems.
Finally the making was successful, by just following steps 1,2 and 3.
I found that one of the problems was that I modify in a wrong Passes.h, as there are 2.
My question now is: How I can apply this pass? (call, use ... etc)
>From what I've read I found that I can't call it from opt.


Regards,
Marwa Yusuf
Teaching Assistant - Computer Engineering Department
Faculty of Engineering - Benha University
E-JUST MSc Student
Computer Science & Engineering Dept.
________________________________________
From: John Criswell [criswell at illinois.edu]
Sent: Thursday, February 07, 2013 7:33 PM
To: marwayusuf at feng.bu.edu.eg
Cc: llvmdev at cs.uiuc.edu
Subject: Re: [LLVMdev] adding a codegen pass into llvm

On 2/7/13 5:49 AM, marwayusuf at feng.bu.edu.eg<mailto:marwayusuf at feng.bu.edu.eg> wrote:

Dear All
in this - quite old - message
http://lists.cs.uiuc.edu/pipermail/llvmdev/2011-January/037496.html
I followed all the steps except the last one, as I don't think my pass depends on anything else, and I didn't fully understand it.
And I tried to rebuild the llvm to make it take my pass into account. I placed my pass in the llvm/lib/CodeGen folder.
But - as I predicted - it didn't work. It stopped here
"make[1]: *** [Transforms/.makeall] Error 2"

I'm not sure if I can help, but looking over the files, I think you're going to have to provide more information on the error.  Is the LLVM build system attempting to compile your files?  If so, what error does it print out (aside from the fact that make is failing; make fails when something fails to compile or link).

Without more information, I doubt anyone will be able to figure out what the problem is.

-- John T.




Attached are my two files

Any help is appreciated.



Regards,
Marwa Yusuf
E-JUST MSc Student
Computer Science & Engineering Dept.
Teaching Assistant - Computer Engineering Department
Faculty of Engineering - Benha University



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