[cfe-users] Parsing C code looking for Basic Blocks

[Harald Servat]

El dt 19 de 03 de 2013 a les 12:43 +0100, en/na Harald Servat va
escriure:
> Dear list,
> 
>   I'm a newcommer to Clang/LLVM and I'm not sure whether this is the
> correct place to ask this topic. If it's not, would you mind to point me
> to the correct place/list?
> 
>   I'm looking for a mechanism to detect basic blocks in C codes
> (optionally C++, and eventually Fortran, in a future). I'm wondering
> whether how can Clang help me? Is it an appropriate tool for doing such
> thing? I'm not looking for something very difficult (I think). 
> 
>   Imagine I have the following code (line numbering on the left, source
> code on the right)
> 
> 01: void foo(void)
> 02: {
> 03:    int a = 10;
> 04:    int b = 11;
> 05:    if (a > b)
> 06:    {
> 07:       printf ("a is greater than b\n");
> 08:    }
> 09:    else
> 10:   {
> 11:      printf ("b is greater or equal than a\n");
> 12:   }
> 13: }
> 
>   I'd like to have a obtain a list of pairs that delimit the basic
> blocks of the code. For the previous example, for instance it should
> return something like : [01-05], [06-08], [10-12]. 
> 
>   Is there any Clang mechanism to provide such information? If not, is
> it possible to do it through Clang?
> 
> Thank you very much!
> 
> 
> 
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Hello,

  I found the following command exceptionally useful for the purposes I
wanted:
  
    clang -cc1 -ast-dump file.c

  With that and some scripting I can do what I was looking for.

Thank you and sorry for disturbing your mailboxes



WARNING / LEGAL TEXT: This message is intended only for the use of the
individual or entity to which it is addressed and may contain
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intended recipient, you are strictly prohibited from disclosing,
distributing, copying, or in any way using this message. If you have
received this communication in error, please notify the sender and
destroy and delete any copies you may have received.

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