[LLVMdev] Why llvm-pass don't work when applied on itself(passfile)

[John Criswell]

On 6/15/14, 12:04 PM, Prashanth Sharma wrote:
> Let's take Hello.cpp  pass file from llvm/lib/Transform/Hello. Now I 
> want to run clang -emit-llvm -c Hello.cpp(Hello.c).Means I want to 
> apply this pass on itself.Then there are too many errors.

You need to be more specific about how you are running your pass on the 
bitcode file and what errors you are seeing.  No one can figure out what 
the problem is with the small amount of information that you have provided.

Regards,

John Criswell

>
>
> On Sun, Jun 15, 2014 at 10:27 PM, John Criswell <criswell at illinois.edu 
> <mailto:criswell at illinois.edu>> wrote:
>
>     On 6/14/14, 6:02 AM, Prashanth Sharma wrote:
>>     Hi,
>>     I applied some pass i.e.  Hello pass on Hello.cpp(the pass
>>     file).It doesnot work as using command clang -emit-llvm -c
>>     Hello.c(Hell.cpp) does not create any .bc file .Can any body have
>>     some suggestion ?
>
>     Is the problem that you can't create a bitcode file or that you
>     can't get clang to run your pass?
>
>     Assuming you can't generate a bitcode file, clang -emit-llvm -c
>     <file.c> should create a file ending with .o that is an LLVM
>     bitcode file.  It will not have a .bc suffix.
>
>     Regards,
>
>     John Criswell
>
>
>>
>>     -- 
>>     Thanks
>>     Prashant Sharma
>>
>>
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>
>
>
>
> -- 
> Thanks
> Prashant Sharma

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