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

[Amy Huang via llvm-dev]

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)
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20210715/e67f96e8/attachment.html>