llvm dev - Jan 2020 - RISC-V LLVM sync-up call 9th Jan 2020

For background on these calls, see
<http://lists.llvm.org/pipermail/llvm-dev/2019-September/135087.html>.

Reminder: the purpose is to co-ordinate between active contributors.
If you have support questions etc then it's best to post to llvm-dev.

We have a call each Thursday at 4pm GMT, via
<https://meet.google.com/ske-zcog-spp>.

I've created a shared calendar which may help in keeping track, which
is hopefully accessible at:
  *
<https://calendar.google.com/calendar/b/1?cid=bG93cmlzYy5vcmdfMG41cGtlc2ZqY25wMGJoNWhwczFwMGJkODBAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ>
  *
<https://calendar.google.com/calendar/ical/lowrisc.org_0n5pkesfjcnp0bh5hps1p0bd80%40group.calendar.google.com/public/basic.ics>

Issues to discuss today include the following:
* LLVM 10.0 is scheduled to branch on Jan 15th. Are there any patches
no in this email we particularly want to land?
* [Like to land] Save/restore of callee registers
https://reviews.llvm.org/D62686 now has new parent
https://reviews.llvm.org/D71593
* [Like to land] Shrink wrapping https://reviews.llvm.org/D62190
* Encoding target-abi in LLVM bitcode for LLVM
<http://lists.llvm.org/pipermail/llvm-dev/2020-January/137951.html>
related to <https://reviews.llvm.org/D71387>.
* CSR read/write intrinsics https://reviews.llvm.org/D71778
* Luis is about to investigate driver issues that crop up when running
clang on a RISC-V host. Do let us know if you're already looking at
that.

Best,

Alex