llvm dev - Sep 2020 - New PM for target-specific pre-isel IR passes

Hi,

Is there a mechanism in place to use the new pass manager with target-specific
passes added (at the moment) via addIRPasses in TargetPassConfig?

I did see any code related to that, did I miss something?  Is it in plan?


--
Krzysztof Parzyszek  kparzysz at quicinc.com   AI tools development

That's part of the codegen pipeline and not the optimization pipeline (even
though they are IR passes). ychen is working on making the codegen pipeline
work with the new pass manager, but that is not part of the immediate new
pass manager transition, which is just about the optimization pipeline.

On Mon, Sep 7, 2020 at 8:02 AM Krzysztof Parzyszek via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> Hi,
>
> Is there a mechanism in place to use the new pass manager with
> target-specific passes added (at the moment) via addIRPasses in
> TargetPassConfig?
>
> I did see any code related to that, did I miss something?  Is it in plan?
>
>
> --
> Krzysztof Parzyszek  kparzysz at quicinc.com   AI tools development
>
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
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Hello Krzysztof,

Yes, there is a plan to use the new pass manager for both target-specific IR and
MIR passes.  There will be a new class (counterpart to TargetPassConfig) to let
target `addIRPasses` (https://reviews.llvm.org/D83608). The TargetPassConfig is
and will continue to be specific to legacy pass manager though.

-Yuanfang

From: Arthur Eubanks <aeubanks at google.com>
Sent: Tuesday, September 8, 2020 11:08 AM
To: Krzysztof Parzyszek <kparzysz at quicinc.com>
Cc: llvm-dev at lists.llvm.org; Chen, Yuanfang <Yuanfang.Chen at sony.com>
Subject: Re: [llvm-dev] New PM for target-specific pre-isel IR passes

That's part of the codegen pipeline and not the optimization pipeline (even
though they are IR passes). ychen is working on making the codegen pipeline work
with the new pass manager, but that is not part of the immediate new pass
manager transition, which is just about the optimization pipeline.

On Mon, Sep 7, 2020 at 8:02 AM Krzysztof Parzyszek via llvm-dev <llvm-dev at
lists.llvm.org<mailto:llvm-dev at lists.llvm.org>> wrote:
Hi,

Is there a mechanism in place to use the new pass manager with target-specific
passes added (at the moment) via addIRPasses in TargetPassConfig?

I did see any code related to that, did I miss something?  Is it in plan?


--
Krzysztof Parzyszek  kparzysz at quicinc.com<mailto:kparzysz at
quicinc.com>   AI tools development

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