Re: Pitfalls in interference graph ?

"Mohamed Shafi" <shafitvm@gmail.com> writes:


> Hello all,
>
> I am trying to implement Briggs Optimistic register allocator after
> reading the the thesis written by Preston Briggs.
>
> Now for building the interference graph what other than register pairs
> is there any other issues that one has to look out for?


  - Calling conventions, i.e., caller-saves versus callee-saves
      registers, parameter-transfer registers and registers used for
      return address and stack/frame pointer.


  - Special-purpose registers, such as multiplication using specific
      registers for arguments and results.


  - Register types such as address/integer/FP registers.


Torben

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