[llvm-dev] [NPM] Register target specific pass with opt

[Ankit Aggarwal via llvm-dev]

Hi Chen,

Thanks for the quick response.

Halide which is a DSL for image processing has moved to the New Pass Manager. Earlier we were using TargetMachine's adjustPassManager to run HexagonVectorLoopCarriedReusePass. Now we want to be able to run this pass with the New Pass Manager.

Regards
Ankit

-----Original Message-----
From: Chen, Yuanfang <Yuanfang.Chen at sony.com>
Sent: Thursday, September 17, 2020 12:21 PM
To: llvm-dev at lists.llvm.org; Ankit Aggarwal <aankit at quicinc.com>
Subject: [EXT] Re: [NPM] Register target specific pass with opt

 Hi Ankit,

Testing target specific passes using opt+NPM is not currently supported. The work is still work-in-progress. What is the motivation for doing this?

- Yuanfang

________________________________________
From: llvm-dev <llvm-dev-bounces at lists.llvm.org> on behalf of Ankit Aggarwal via llvm-dev <llvm-dev at lists.llvm.org>
Sent: Thursday, September 17, 2020 12:14 PM
To: llvm-dev at lists.llvm.org
Subject: [llvm-dev] [NPM] Register target specific pass with opt

Hello LLVM community,

I was trying to port a target specific loop transformation pass (HexagonVectorLoopCarriedReusePass) to the New Pass Manager. However, I could not figure out a way to register this pass with opt. I can see that llvm/lib/Passes/PassRegistry.def is the registry for target independent passes. Can anyone point me to an example/API which can help me in registering this pass so that I can use it -passes option in opt?

Thanks
Ankit