[llvm-dev] RISC-V LLVM sync-up call 23rd Jan 2020

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[llvm-dev] RISC-V LLVM sync-up call 23rd Jan 2020

Jeremy Morse via llvm-dev
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 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:
* LTO status and plan. See
http://lists.llvm.org/pipermail/llvm-dev/2020-January/138450.html and
- patches https://reviews.llvm.org/D72755
https://reviews.llvm.org/D72768 https://reviews.llvm.org/D70837 are
all landed and proposed for 10.0. Thanks to Sam and Zakk!
* Backport requests for 10.0
  * LTO (see above)
  * Fix for evaluating pcrel_lo against global and weak symbols
<https://bugs.llvm.org/show_bug.cgi?id=44631>
  * Asked if LLD folks are happy for https://reviews.llvm.org/D71820
to be backported, which emits an error for R_RISCV_ALIGN
  * Please highlight anything else you think of
* Scheduler status and backport possibility https://reviews.llvm.org/D68685
* Heads up: Rust codegen for riscv lp64d landed last year
https://github.com/rust-lang/rust/pull/66661 and Sam had been feeding
back on some ABI lowering issues
* Update: proposal to disallow ilp32e with the D instruction set
extension was accepted
https://github.com/riscv/riscv-elf-psabi-doc/pull/127
* Moving forwards with vector intrinsics (topic proposed by Michael at
the last meeting)

Best,

Alex
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Re: [llvm-dev] RISC-V LLVM sync-up call 23rd Jan 2020

Jeremy Morse via llvm-dev
On Thu, 23 Jan 2020 at 14:37, Alex Bradbury <[hidden email]> wrote:

>
> 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 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:
> * LTO status and plan. See
> http://lists.llvm.org/pipermail/llvm-dev/2020-January/138450.html and
> - patches https://reviews.llvm.org/D72755
> https://reviews.llvm.org/D72768 https://reviews.llvm.org/D70837 are
> all landed and proposed for 10.0. Thanks to Sam and Zakk!
> * Backport requests for 10.0
>   * LTO (see above)
>   * Fix for evaluating pcrel_lo against global and weak symbols
> <https://bugs.llvm.org/show_bug.cgi?id=44631>
>   * Asked if LLD folks are happy for https://reviews.llvm.org/D71820
> to be backported, which emits an error for R_RISCV_ALIGN
>   * Please highlight anything else you think of

Forgot to add here: update on RFC for upstreaming of
yet-to-be-ratified extension support
http://lists.llvm.org/pipermail/llvm-dev/2020-January/138364.html

> * Scheduler status and backport possibility https://reviews.llvm.org/D68685
> * Heads up: Rust codegen for riscv lp64d landed last year
> https://github.com/rust-lang/rust/pull/66661 and Sam had been feeding
> back on some ABI lowering issues
> * Update: proposal to disallow ilp32e with the D instruction set
> extension was accepted
> https://github.com/riscv/riscv-elf-psabi-doc/pull/127
> * Moving forwards with vector intrinsics (topic proposed by Michael at
> the last meeting)
>
> Best,
>
> Alex
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