== Activity ==
- [PR64946] abs vectorization fails for char/short types
* Trying to tackle this with ABSU_EXPR
* Experimented with implemented in FE vs in gimplification
* Hope to get a working prototype this week
- Misc
* gcc-patches/bug list
* Plan for 2017
== Plans for next week ==
- PR64946
- Catch up on pending patches
=== This Week ===
Back from month long holiday had a surgery during this period.
Add Pine64 as tester to LLDB buildbot [TCWG-1011] [3/10]
-- Configure Pine64 with Ubuntu 16.04 image
-- Configure network on Pine64 to be used with LLDB buildbot
-- Configure Pine64 for AArch32 mode execution
-- Configure LLDB buildbot to include Pine64 as tester in both AArch32
and AArch64 modes.
-- Run buildbot with Pine64 and monitor stability
Monitor LLDB buildbot for minimum down time. [TCWG-712]
-- Return from break reset buildbot and testers.
Investigate LLDB testsuite failures on Pine64 target (AArch32 and
AArch64 modes) [TCWG-1012] [2/10]
-- Some tests pass when run individually.
-- Some tests fail only when run in testsuite, similar steps pass when
run using LLDB commandline.
LLDB Arm/AArch64 Investigate and fix testsuite crashes (Pine64
Crashes) [TCWG-792] [1/10]
-- LLDB crashing unexpectedly on Pine64 as well.
-- Initial investigation suggests test run fine individually and in
single thread mode.
Meetings and other Miscellaneous Activities [1/10]
-- Browse through email backlog.
-- Prepared a future ToDo list.
BUD17 Travel - Schengen visa application for Budapest, Hungary. [3/10]
-- Information gathering and correspondance.
-- Form filling and preparation supporting documentation.
-- Application submission.
-- Interview date is on 10th Jan 2017.
=== Next Week ===
Investigate LLDB testsuite failures on Pine64 target (AArch32 and
AArch64 modes) [TCWG-1012]
-- Continue to investigate, possible fix trivial issues and mark rest
as xfail with appropriate bug reports.
LLDB Arm/AArch64 Investigate and fix testsuite crashes (Pine64
Crashes) [TCWG-792]
-- Find a reliable reason to the issue as this hampers our buildbot work.
BUD17 Travel - Schengen visa application for Budapest, Hungary.
-- Budapest visa interview travelling to Islamabad 9 - 10 Jan 2017.
== Activity ==
TCWG-919 Thunks to undefined symbols
Now committed upstream
TCWG-614 Long branch thunks
Sent RFC to llvm-dev
Have a good idea about how to proceed.
First step is to rewrite existing implementation using synthetic sections.
Currently thinking about the best way to do this.
Wrote first draft of Fosdem 2017 presentation
Booked travel for Fosdem
Registered for Linaro Connect
== Plans for next week ==
Linaro TCWG-614 Long branch thunks
Aim to get a patch out for review for thunks as synthetic sections
== Progress ==
* Out of office [2/10]
* [ARM GlobalISel] Use CC support for lowering args/return [TCWG-946] [1/10]
- Brushed up and committed upstream
* [ARM] Use AddDefaultPred everywhere [TCWG-987] [3/10]
- Patches in upstream review
* Misc [4/10]
- Mailing lists, meetings, 2017 objectives
- Code reviews
- FOSDEM slides
- Investigated buildbot failures and reverted some patches (and ran
a precommit on the next version)
== Plan ==
* Vacation until January 9th, 2017
~ Progress ~
* Fix foreign frame problem in C++ exception unwinding. PR 20939. [2/10]
Being discussed. We agreed on the approach fixing the bug. Need a
patch.
Find other issues during the investigation, and fixed them. PR 20953,
PR 20954, and PR 20955 are fixed.
* GDB exception handling is broken on i686-w64-mingw32. PR 20977. [3/10]
In short, we can't use longjmp in SJLJ exception handling. Need post
an RFC.
* Upstream patches review. [5/10]
** SVE GDB patches review.
Carefully read the patches line by line for the first time. Find some
issues on target descriptions, and post my comments upstreams. Hack
GDBserver to get SVE on normal juno board. Need more time to think
about how to move on.
** Review sparc target descriptions.
** 7.12.1 release discussion.
~ Plan ~
* PR 20939, PR 20977.
* On Holiday from Wed.
--
Yao Qi
== Progress ==
o Linaro GCC/Validation (7/10)
* Completed backports
* Merged FSF branches (5 and 6)
* Released 2016.12 source snapshots (5 and 6)
* Closed bugzillas #1925, #2575 and #1963
o Misc (3/10)
* Various meetings and discussions.
== Plan ==
o Finish on-going tasks before holiday (Tuesday evening).
Progress:
TCWG-985 PIE on ARM broken
- Now fixed
TCWG-911 Eglibc requires a .ARM.attributes section for dlopen
- Worked around this with a simple hack to retain the first build
attribute section seen. This should suffice for the majority of
use-cases on a host platform using the default compiler. More work is
needed later. Now upstreamed.
TCWG-919 Thunks to undefined symbols
- In upstream review, as expected got some push back, I had hoped to
have resolved this on Thursday and committed today, but no response
last night.
PR31332 X86 pic plt sequences broken
- Worked out a fix, but haven't sent upstream due to needing to spend
quite a bit of time writing tests.
Other:
About 3/4 way of writing up AArch64 Ifunc for possible inclusion in
some public facing documentation.
Got a new blank machine from IT with permission to install linux
myself. Have now built myself a 16.04 machine and got my environment
set up.
Planned absences:
- on holiday for two weeks, back on Tuesday 3rd December
Next year:
- Top priority is long range thunks in lld, followed by an ARM lld build bot.
== Progress ==
* [ARM GlobalISel] Add support for integers < 32 bits wide [TCWG-980] [4/10]
- A number of patches in upstream review
* [ARM] Refactor AddrMode3 [TCWG-989] [1/10]
- Did some preliminary investigations / tinkering for removing a
hack in the representation of LDRH
* Rewrite llvm-projs in Python [TCWG-833] [2/10]
- More refactoring etc
- It is finally done, yay
* Misc [3/10]
- Address review comments on outstanding patches (committed
TCWG-925, still waiting for TCWG-946)
- AArch64 3.9.1 release [TCWG-886]
- Meetings, mailing lists, code reviews
== Plan ==
* [ARM] Refactor AddrMode3 [TCWG-989]
* FOSDEM slides
* Vacation between December 24th and January 9th.
