[LLVMdev] Odd problem with command line options

[Richard Pennington]

Bill Wendling wrote:
> On Jul 6, 2008, at 4:30 AM, Richard Pennington wrote:
> 
>> OK, I finally found my problem. (Which means I took the time to  
>> track it
>> down.) At first glance I thought the above patch would work. It  
>> didn't.
>>
>> What it turned out to be is:
>>
>> ./lib/CodeGen/LLVMTargetMachine.cpp:41
>> EnableLICM("machine-licm",
>>            cl::init(false), cl::Hidden,
>>            cl::desc("Perform loop-invariant code motion on machine  
>> code"));
>>
>> and
>> ./lib/CodeGen/MachineLICM.cpp:156:
>> static RegisterPass<MachineLICM>
>> X("machine-licm", "Machine Loop Invariant Code Motion");
>>
>> Both are defining a command line option with the same name. I'm I the
>> only person who links both at the same time? :-(
>>
>> My suggestion: change the name of one or the other. I changed the  
>> first
>> one to "enable-machine-licm" since it was hidden.
>>
>> Does this sound OK?
>>
> I just fixed this. Try it now.
> 
> -bw
Fixed. Thanks Bill!

-Rich