[LLVMdev] LiveIntervals for FunctionPass

Evan Cheng evan.cheng at apple.com
Wed Aug 20 00:06:11 PDT 2008


Ok. If it's at llvm ir level, it's very simple since everything is in  
SSA form. What are you trying to achieve though?

Evan

On Aug 19, 2008, at 6:51 PM, Sean Soria wrote:

> It's done at the MachineFunctionPass level as far as I can tell (http://llvm.org/doxygen/classllvm_1_1LiveIntervals.html 
> ).  I'd like something at the FunctionPass level.
>
> On Tue, Aug 19, 2008 at 6:11 PM, Evan Cheng <evan.cheng at apple.com>  
> wrote:
> I am not sure what you mean. Live interval analysis is done at the
> function level.
>
> Evan
>
> On Aug 19, 2008, at 1:26 AM, Sean Soria wrote:
>
> > Is there an equivalent to LiveIntervals that works at the Function
> > level?  If not, is there anything that makes it difficult to
> > implement compared to the MachineFunction version?
> >
> > Sean
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