[VIRT-198 # QEMU: SVE Emulation Support ]
Cleaning up patches and fixing RISU failures.
Most of these have thankfully been errors in
last week's first pass reordering of the
sve_access_check. Typically wrt when we find
the address of a register vs the location of
the check vs assert_fp_access_checked.
[Upstream]
Examined a bug affecting aa64 guest on ppc64 host,
but only when using gcc 4.8.5 and not gcc 7.2.
Fixed; in the end a minor typo on the code,
but highly annoying to track down.
r~
o 1 day off
== Progress ==
o LLVM
* Buildbots babysitting:
- Investigate LNT failure due to virtualenv and pip versions (Now fixed).
* Working on LLVM benchmarking job
o Misc
* Various meetings and discussions.
Progress: (short week, 2 days)
* VIRT-65 [QEMU upstream maintainership]
+ email/code review/etc catchup following holiday
+ the usual run of admin work for the release process for rc2
+ investigated a problem where in 'icount' mode we weren't
firing timer interrupts in a timely manner; with assistance
from Paolo, tracked down the cause and sent a patch
(https://bugs.launchpad.net/qemu/+bug/1754038)
+ investigated a problem with v7M emulation reported by the LITE team;
this turned out to be a combination of a known limitation combined
with a badly worded warning message; sent QEMU patch which rewords
the message so it's clearer that it's telling you that you're running
into the limitation.
+ tracked down why aarch64 guest binaries run in icount mode on
a 32-bit host misbehave; I have a working but slightly ugly patch
which I'll send out next week unless somebody has a neater approach
thanks
-- PMM
Note1: working for Linaro every other week
Note2: had some important work to do on GCC this week so I'll do some LLVM
work next week as well to catch up
=== Work done during this LLVM+GCC week ===
* LLVM PR34170 (crashes with inline asm with double output operand in GPR):
upstream review
+ finish patch and submit for upstream review
=== Plan for next week (week 12) ===
* (maybe) follow-up patch for PR34170 to also support case with several
output operands
* investigate failure to build clang in shared lib mode with gcc
o 1 post-connect day off
== Progress ==
o GNU Release transition
* Supported Mark for 2018.04 RCs
o LLVM
* Catching-up on devpt (TCWG-1286, ...)
* Benchmarking job for LLVM
* Buildbots babysitting
o Misc
* Various meetings and discussions.
* HK18 debriefing
Progress:
[VIRT-198 # QEMU: SVE Emulation Support ]
Rebasing and addressing feedback from v2 posting.
- Finished first pass moving sve_access_check
after any checks for over decode.
- Still lots of cleanup to do across the 70 patches.
[Upstream]
Fixed a target/hppa bug affecting glibc 2.27.
Fixed a tcg optimization bug affecting high-part multiply.
r~
