<div dir="ltr">I probably should have said "deprecating and removing".<div><br></div><div>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.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Aug 24, 2021 at 12:02 PM Fangrui Song <<a href="mailto:maskray@google.com">maskray@google.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On 2021-08-24, Arthur Eubanks via llvm-dev wrote:<br>
>The new pass manager has been on by default since the 13 branch. Now that<br>
>we've branched for 14, I'd like to start the process of deprecating and<br>
>removing legacy pass manager support for the optimization pipeline. This<br>
>includes clang, opt, and lld LTO support.<br>
><br>
>Note that this doesn't apply to the codegen pipeline since there's no new<br>
>pass manager support for that yet.<br>
><br>
>Are there any objections?<br>
<br>
"deprecating" and 'removing" are different.<br>
<br>
For 14.0.0, do you plan that -DLLVM_ENABLE_NEW_PASS_MANAGER=off will<br>
give a warning or will be completely unsupported?<br>
</blockquote></div>