[LLVMdev] MachineLoopInfo Analysis Not Done

[Owen Anderson]

Fixed now!

--Owen

On Dec 6, 2007, at 9:30 PM, Chris Lattner wrote:

>
> On Dec 6, 2007, at 5:56 PM, Bill Wendling wrote:
>
>> I'm trying to create the Machine LICM pass and I have this defined:
>>
>> But when I go to use it:
>>
>> bool MachineLICM::runOnMachineFunction(MachineFunction &MF) {
>>   ...
>>   // Get our Loop information...
>>   LI = &getAnalysis<MachineLoopInfo>();
>>   ...
>>   for (MachineLoopInfo::iterator
>>      I = LI->begin(), E = LI->end(); I != E; ++I) {
>>     ...
>>
>> it doesn't execute the loop. In fact, the analysis is never ran. How
>> do I force it to be run?
>
> Maybe this is because it has runOnFunction disabled?:
>
> class MachineLoopInfo : public MachineFunctionPass {
> ...
>   bool runOnFunction(Function& F) { return false; }
>
> -Chris
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