[llvm-dev] Add support for in-process profile merging in profile-runtime

[Justin Bogner via llvm-dev]

Xinliang David Li <davidxl at google.com> writes:
> Justin, looks like there is some misunderstanding in my email. I want to
> clarify it here first:
>
> 1) I am not proposing changing the default profile dumping model as used
> today. The online merging is totally optional;
> 2) the on-line profile merging is not doing conversion from raw to index
> format. It does very simple raw-to-raw merging using existing runtime APIs.
> 3) the change to existing profile runtime code is just a few lines. All the
> new functionality is isolated in one new file. It will become clear when
> the patch is sent out later.

This doesn't sound quite as scary with this explanation. I'll wait for
the patch.