From: "Hans Wennborg" <hans@chromium.org>
To: "george burgess iv" <george.burgess.iv@gmail.com>, "Nick Lewycky" <nicholas@mxc.ca>, "Daniel Berlin"
<dannyb@google.com>
Cc: "llvm cfe" <cfe-commits@cs.uiuc.edu>, "llvmdev" <llvmdev@cs.uiuc.edu>
Sent: Wednesday, February 18, 2015 6:39:17 PM
Subject: Re: [3.6 Release] Time to fix the release notes
> The 3.6 release is drawing nearer, but the release notes could
> still
> use a lot of improvement:
>
> LLVM:
> https://github.com/llvm-mirror/llvm/blob/release_36/docs/ReleaseNotes.rst
> Clang:
> https://github.com/llvm-mirror/clang/blob/release_36/docs/ReleaseNotes.rst
>
> The good news is that they can be updated all the way up until
> release. If you have a patch for the release notes, commit it
> directly
> to the branch, or send it to me and I'll commit it for you. It
> doesn't
> even have to be a patch proper, just send me some text!
>
> I've been going through Alex's excellent weekly news
> (http://llvmweekly.org) to figure out what changed.
>
> Here's a list of things that might be worth mentioning in the
> notes:
>
> LLVM:
> - the new CFL alias analysis
Is this hooked up by default? Should we mention it in the notes?
No, not yet. There are still bugs that are being worked out.
-Hal
You can request that CFLAA is run in opt/clang by passing in a few flags, but it’s not on by default, and there are known correctness issues that we’re currently working through.
Unless anyone feels strongly otherwise, I think it would be best to not add CFLAA until we’re highly confident that it doesn’t give incorrect results. Preferably it would be enabled by default (and/or shown to Make Things Faster™) at the time of mention as well, but correctness comes first. 
George
You can request that CFLAA is run in opt/clang by passing in a few flags, but it’s not on by default, and there are known correctness issues that we’re currently working through.
Unless anyone feels strongly otherwise, I think it would be best to not add CFLAA until we’re highly confident that it doesn’t give incorrect results. Preferably it would be enabled by default (and/or shown to Make Things Faster™) at the time of mention as well, but correctness comes first.
Sounds good to me. Thanks!
Clang:
- fpic and -fPIC are now different
Justin, Rafael: should we mention this in the release notes?
Probably. What do you guys think of the attached patch?
Cheers,
Rafael
t.patch (363 Bytes)
I think we're all good here. I've added some notes about C11 changes in
r229939.
C++14 support used to be feature-complete in Clang 3.4. It still is, but it
used to too. =)