llvm dev - Mar 2021 - RISC-V LLVM sync-up call 18th March 2021 (*Note* US daylight savings time)

*Note*: The US recently entered daylight savings time, but we haven't
done so in Europe yet. This meeting is still at 4pm GMT - but may be
an hour later than you're used to if you've entered DST already.
We'll
discuss timing for the next meeting today.

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 every alternate Thursday at 4pm GMT, via
<https://meet.google.com/ske-zcog-spp>. If you have topics to discuss,
please email me ahead and I can add them to the agenda.

We have a shared calendar which may help in keeping track, which is
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>

* Patches or bugs to note / briefly discuss:
  * LLVM is gaining documentation on the recurring sync-ups
    <https://reviews.llvm.org/D98797>
  * Reported bug in V support - feels too late for 12.0.0 at this point?
    <https://bugs.llvm.org/show_bug.cgi?id=49623>
  * Parsing multi-lib config from GCC <https://reviews.llvm.org/D97916>
  * Search FilePaths for compiler-rt before falling back
    <https://reviews.llvm.org/D98113>
  * 'v' inline asm constraint <https://reviews.llvm.org/D98616>
  * Enabling VIU75 and vector support <https://reviews.llvm.org/D98236>
  * LocalStackSlotAllocation <https://reviews.llvm.org/D98101>
* Integer materialisation: <https://reviews.llvm.org/D98821> and whether
we
  should route all materialisation through selectImm
* RFC: Support of non-default floating point environment on RISC-V
  <https://lists.llvm.org/pipermail/llvm-dev/2021-March/149177.html>
* Passing 'half' in the lower 16 bits of an f32 value
  <https://reviews.llvm.org/D98670>
* RFC: `__fp16` on RISC-V
  <https://lists.llvm.org/pipermail/cfe-dev/2021-March/067847.html>
* Load/store/alloca for structs with all the same scalable vectors
  <https://reviews.llvm.org/D98169> - anything this group can do to help
  progress this discussion?
* Time and date of next meeting
* AOB

Best,

Alex