[llvm-dev] [DebugInfo] Enabling constructor homing by default in clang

David Blaikie via llvm-dev
Thu, 15 Jul 2021 18:14:34 -0000

Thanks Amy! + a few folks to highlight this.

On Thu, Jul 15, 2021 at 11:06 AM Amy Huang via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> A while back I tried turning on constructor homing
> (-debug-info-kind=constructor) by default in clang. Ctor homing is a debug
> info optimization that reduces the amount of debug info that is emitted for
> class types.
>
> The main blocker was that for some libc++ types we avoid calling the
> constructor. Since then I've added a attribute for classes that ignores
> ctor homing (`__attribute__((standlone_debug))`) and added it to the libc++
> types (7c2f58278e66).
>
> I think at this point we can try enabling it by default in Clang --
it's
> currently being used in chromium and google codebases. Thought I'd
email
> the llvm-dev list in case people have thoughts/opinions/concerns about
> this. (patch is at https://reviews.llvm.org/D106084)
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20210715/d20116f3/attachment.html>