[llvm-dev] Proper way to do thinlto (from code)

Peter Collingbourne via llvm-dev llvm-dev at lists.llvm.org
Fri Mar 30 01:02:31 PDT 2018


You need to make sure that your bitcode file has a module summary index.
You can do that either by creating a WriteBitcodePass with EmitSummaryIndex
set to true or by calling WriteBitcodeToFile with a module summary index
that you created yourself. It doesn't look like either of those options are
hooked up to the c API, though.

Peter

On Fri, Mar 30, 2018, 00:50 Carlo Kok via llvm-dev <llvm-dev at lists.llvm.org>
wrote:

> I'm using llvm-c (but if needed can call c++ stuff too if nedeed); what's
> the proper way to emit bitcode with thinlto info so the linker can
> parallelize ?
> I'm currently using:
> unwrap(PMB)->PrepareForThinLTO = b;
>
> on the pass manager builder, but that doesn't seem to be enough?
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://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/20180330/0b197a2d/attachment.html>


More information about the llvm-dev mailing list