[llvm-commits] [llvm] r59208 - /llvm/trunk/lib/Transforms/IPO/StripSymbols.cpp

[Devang Patel]

On Nov 17, 2008, at 5:00 PM, Chris Lattner wrote:

> On Nov 17, 2008, at 4:45 PM, Devang Patel wrote:
>>> I don't think that matching on the names is really a sound way to  
>>> go.
>>> How about just looping over all the globals, removing dead globals  
>>> in
>>> the llvm.metadata section?
>>
>>
>> If it start remove dead globals then it becomes difficult to compare
>> "-
>> strip-debug -std-compile-opts" output with "-std-compile-opts -strip-
>> debug" output.
>
> What other dead metadata can exist?


llvm.used  uses llvm.metadata. It is possible that symbols marked as  
attribute used does not have any use. In such cases we want to  
preserve them. Until alternative mechanism is available, name matching  
will be required anyway.
-
Devang