llvm dev - Nov 2007 - [LLVMdev] Seeing double

Is there a reason that BlockExtractorPass is duplicated? See tools/ 
Bugpoint/ExtractFunction.cpp and lib/Transforms/IPO/LoopExtractor.cpp.

— Gordon

On Nov 4, 2007, at 8:25 AM, Gordon Henriksen wrote:
> Is there a reason that BlockExtractorPass is duplicated? See tools/
> Bugpoint/ExtractFunction.cpp and lib/Transforms/IPO/LoopExtractor.cpp.
Huh, how about that.  It looks like bugpoint should use the other one  
and drop its copy.

-Chris

On Nov 4, 2007, at 12:39, Chris Lattner wrote:
> On Nov 4, 2007, at 8:25 AM, Gordon Henriksen wrote:
>
>> Is there a reason that BlockExtractorPass is duplicated? See tools/ 
>> Bugpoint/ExtractFunction.cpp and lib/Transforms/IPO/ 
>> LoopExtractor.cpp.
>
> Huh, how about that.
This existed to communicate the "blocks to not extract" list via a  
static variable to the forked bugpoint subprocess. Since bugpoint  
subprocesses now exec, this form of IPC is no longer possible. I  
opened http://llvm.org/PR1775 for the matter.
> It looks like bugpoint should use the other one and drop its copy.

Done.

— Gordon