Support for embedding bitcode section during LTO

LLVM Project
,
1

Hi there,
is there any support to generate the bitcode for the whole program. This is important for whole program analysis.
This is related to
:gear: D68213 [LTO] Support for embedding bitcode section during LTO (llvm.org)
Is this feature added to clang and if so from which version of clang.

Thanks

Bernard