llvm dev - Jul 2015 - [LLVMdev] How to configure the functionPass manager to omit some functions in a module input?

Hi all, now I am using LLVM to draw a program dependence graph. In my
ModulePass I hope to omit some special functions like "main" and only
run
some special functions.

For example, as shown in the following dump result, how can i selectively
omit function "@const_expr" in the input module? Is there a general
way to
run some function only but omit others?  Thanks!




Stack dump:
0.  Program arguments: opt --load mypass.so -mypass --debug-pass=Structure
1.  Running pass 'Function Pass Manager' on module
'<stdin>'.
2.  Running pass 'My test analysis' on function '@const_expr'
Segmentation fault (core dumped)
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Dear Shen,

This isn't sufficient information to help you fix your problem. Is 
@const_expr a function, and LLVM constant expression, or something 
else?  If it's a function, did you verify that it has a body (i.e., it's
not a function declaration)?

Regards,

John Criswell

On 7/14/15 4:41 PM, Shen Liu wrote:
> Hi all, now I am using LLVM to draw a program dependence graph. In my 
> ModulePass I hope to omit some special functions like "main" and
only
> run some special functions.
>
> For example, as shown in the following dump result, how can i 
> selectively omit function "@const_expr" in the input module? Is
there
> a general way to run some function only but omit others?  Thanks!
>
>
>
>
> |Stack dump:
> 0.  Program arguments: opt --load mypass.so -mypass --debug-pass=Structure
> 1.  Running pass 'Function Pass Manager' on module
'<stdin>'.
> 2.  Running pass 'My test analysis' on function
'@const_expr'
> Segmentation fault (core dumped)|
>
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev

-- 
John Criswell
Assistant Professor
Department of Computer Science, University of Rochester
http://www.cs.rochester.edu/u/criswell

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