[llvm-commits] [llvm] r40521 - in /llvm/trunk: include/llvm/CodeGen/Passes.h lib/CodeGen/LLVMTargetMachine.cpp lib/CodeGen/LowerSubregs.cpp

[Evan Cheng]

Sent from my iPhone

On Jul 26, 2007, at 8:41 PM, Christopher Lamb <christopher.lamb at gmail.com 
 > wrote:

>
> On Jul 26, 2007, at 6:30 PM, Evan Cheng wrote:
>
>> Should this be right after register allocation? Any reason to keep  
>> the pseudo instructions around after allocation?
>
> It should probably be after prolog/epilog insertion. As for the post  
> RA scheduler and branch folding, I'd think it'd be OK to put it  
> before them. Thoughts?

Not sure. Why do you think it's necessary for it to be after PEI?

It should definitely be run before post-ra scheduler,IMHO.

Evan

>
>> Evan
>>
>> On Jul 26, 2007, at 1:18 AM, Christopher Lamb wrote:
>>
>>>    if (addPreEmitPass(PM, Fast) && PrintMachineCode)
>>>      PM.add(createMachineFunctionPrinterPass(cerr));
>>> +
>>> +  PM.add(createLowerSubregsPass());
>>
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>
> --
> Christopher Lamb
>
>
>
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