[llvm-dev] [RFC] Deprecating the legacy pass manager for the optimization pipeline (original) (raw)

Arthur Eubanks via llvm-dev llvm-dev at lists.llvm.org
Tue Aug 24 12:09:58 PDT 2021

I probably should have said "deprecating and removing".

My intention was to remove it completely. -DLLVM_ENABLE_NEW_PASS_MANAGER wouldn't do anything and we'd remove the -flegacy-pass-manaager/-fexperimental-new-pass-manager flags, as well as the corresponding lld flags.

On Tue, Aug 24, 2021 at 12:02 PM Fangrui Song <maskray at google.com> wrote:

On 2021-08-24, Arthur Eubanks via llvm-dev wrote: >The new pass manager has been on by default since the 13 branch. Now that >we've branched for 14, I'd like to start the process of deprecating and >removing legacy pass manager support for the optimization pipeline. This >includes clang, opt, and lld LTO support. > >Note that this doesn't apply to the codegen pipeline since there's no new >pass manager support for that yet. > >Are there any objections?

"deprecating" and 'removing" are different. For 14.0.0, do you plan that -DLLVMENABLENEWPASSMANAGER=off will give a warning or will be completely unsupported? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20210824/cca681e1/attachment.html>

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