[LLVMdev] Does the pass -postdomfrontier exist?

[shadowkernel]

On 07/13/2012 05:09 PM, 陳韋任 (Wei-Ren Chen) wrote:
>> I found the -postdomfrontier pass in *llvm*.org/docs/Passes.html, but
>> 'opt' does not accept it. I could not find the relevant codes in
>> PostDominance.cpp in SVN trunk, but I found some relevant codes  here
>> http://opensource.apple.com/source/clang/clang-137/src/lib/Analysis/PostDominators.cpp.
>    LLVM 3.0 release note said postdomfrontier had been removed [1].
>
>      The unused PostOrder Dominator Frontiers and LowerSetJmp passes
>      were removed.
>
>    I'll send patch to update the document.
>
> Regards,
> chenwj
>
> [1] http://llvm.org/releases/3.0/docs/ReleaseNotes.html
>
So it means the postdomfrontier algorithm in <3.0 version is correct, 
but it is removed because no one uses it. And I can add the codes to my 
personal code base for my personal use. Am I correct? Thanks!