On Tue, Jul 10, 2018 at 1:29 PM, David Major <dma...@mozilla.com> wrote:
> Bug 1443590 is switching our official Windows builds to use clang-cl > as the compiler. > > Please keep an eye out for regressions and file a blocking bug for > anything that might be fallout from this change. I'm especially > interested in hearing about the quality of the debugging experience. > > It's possible that the patch may bounce and we'll go back and forth to > MSVC for a while. You can check your build's compiler at > `about:buildconfig`. Treeherder is running an additional set of MSVC > jobs on mozilla-central to make sure we can fall back to a green MSVC > if needed. > > Watch for more toolchain changes to come. The next steps after this > will be to switch to lld-link and enable ThinLTO. That will open the > door to a cross-language LTO that could inline calls between Rust and > C++. In the longer term we can look into cross-compiling from Linux. > > But for now, shipping our most-used platform with an open-source > compiler is a huge milestone in and of itself. Big thanks to everyone > who has contributed to this effort on the Mozilla side, and also big > thanks to the developers of LLVM and Chromium who helped make clang on > Windows a realistic possibility. > A lot of people have wanted to see this day for years (for various reasons - an open source toolchain, potential for cross compiling, unified toolchains across platforms, etc). This is a *major* milestone. And while the transition will likely have a few bumps, the payoff should be well worth it. Thank you to everyone who helped us get here. From the initial work to support Clang on Windows a few years ago. To the upstream work that was put into LLVM and Clang (especially by Google/Chromium). To those that worked through all the issues to transition the compiler today. This was a significant effort by a lot of people. We should all be ecstatic we're finally crossing this bridge. I know I am! Congratulations! _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
