[llvm-dev] [GlobalISel][RFC] Thoughts on MachineModulePass

[Sean Silva via llvm-dev]

On Fri, Jan 22, 2016 at 3:16 PM, Quentin Colombet via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> Hi,
>
> In the initial thread of the proposal for GlobalISel, I have mentioned
> that it may be interesting to have a kind of MachineModulePass.
> Marcello mentioned this would be useful for their current pipeline.
>
> I am interested in knowing:
> 1. If anyone else is interested for such concept?
> 2. What kind of information should we make accessible in an hypothetical
> MachineModule? I.e., how do you plan to use the MachineModulePass so that
> we make the right design decisions for the MachineModule feeding those
> passes?
>

In an LTO context with most functions internalized, aggressively changing
calling conventions in a fine-grained way would be interesting (or, in
other words, doing some amount of interprocedural register allocation).

-- Sean Silva


> 3. Who would be willing to work on that?
>
> Thanks,
> -Quentin
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