[llvm-commits] [llvm] r40521 - in /llvm/trunk: include/llvm/CodeGen/Passes.h lib/CodeGen/LLVMTargetMachine.cpp lib/CodeGen/LowerSubregs.cpp
evan.cheng at apple.com
Thu Jul 26 22:47:07 PDT 2007
Sent from my iPhone
On Jul 26, 2007, at 8:41 PM, Christopher Lamb <christopher.lamb at gmail.com
> 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.
>> On Jul 26, 2007, at 1:18 AM, Christopher Lamb wrote:
>>> if (addPreEmitPass(PM, Fast) && PrintMachineCode)
>>> + PM.add(createLowerSubregsPass());
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> Christopher Lamb
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