== Progress ==
- IPA-VRP: Re-based ipa-cp/ipa-prop on top of Prathameshes commit
(quite a few conflicts) and did full testing before posting to the
list. Patch approved for commit.
- Waiting for Early-VRP patch to commit rest of the patches in the series
- All other patches are OK now.
- Looking at tree-vrp in details. Created
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77387
- Looking at re-assoc wrong code generation issue (PR72835). Posted
another attempt to fix for review
= Next ==
- Work on tree-vrp improvements
- Follow up on pending patches
== This Week ==
* TCWG-779 (4/10)
- Upstream patch iterations
* NULL pointer propagation in ipa-bitwise-cp (4/10)
- WIP patch
* Benchmarking (1/10)
- Found how to set iterations for coremark
- Submitted job for setting up hack session on Juno
* Misc (1/10)
- Meetings
== Next Week ==
- NULL pointer propagation
- TCWG-779
- GNU Cauldron
* Holiday on Monday. [2/10]
# Progress #
* TCWG-685, GDB 7.12 release. No new issue. [1/10]
* TCWG-655, ARM linux kernel ptrace bug. [3/10]
Teach GDB testsuite to detect such kernel bug, and skip all tests
related to floating point. Patches are committed.
On the other hand, upgrade my arm kernel to 4.7.2, on which the ptrace
bug is fixed.
* TCWG-518, range stepping on ARM. [2/10].
Turned it on, but it causes some threads starvation. Investigating.
* Finish the reproducer to show odd behaviour of armv8 kernel in si_code
after PTRACE_SINGLESTEP and Will Deacon fixed it
http://lists.infradead.org/pipermail/linux-arm-kernel/2016-September/453289…
[1/10]
* Think about the GDB plan, and write down a list of things I need to
do. [1/10]
# Plan #
* TCWG-685, TCWG-518.
* GNU Cauldron.
--
Yao Qi
== Activity ==
[TCWG-610] Sent .ARM.exidx for upstream review.
Will need to rework and simplify bit to make more specific to ARM. In
summary abandon pretence of SHF_LINK_ORDER in general and concentrate
on supporting its one known use case in .ARM.exidx sections.
Made a couple of drafts of forthcoming LLVM Cauldron presentation
- Presented locally
- Modified slides after overrunning time
== Plans ==
[TCGWG-610] Rework and resend for review
llvm-cauldron on Thursday
Intending to take Friday as holiday to take advantage of visiting
parents whilst up North.
== Progress ==
* Validation
- patch reviews (Jenkins jobs, abe) mainly for the release process
* Backports
- resubmitted the pending ones
- started looking at v8.2 backports
* GCC
- resumed PR 67591 (ARM v8 Thumb IT blocks deprecated)
* arm-neon-tests
- small update to support clang, as requested by Chromium
* misc (conf-calls, meetings, emails, ....)
- catching up after holidays
== Next ==
- monitor trunk regressions
- pr 67591
- release scripts
- backports
== Progress ==
o Linaro GCC/Validation (7/10)
- Reviewed on-going Backports.
- Analysis on remaining backports dependencies on-going.
- Merged FSF GCC 6 branch.
- Last FSF GCC 4.9 merge still on-going (some conflicts to solve).
- Defining and experimenting new revisions/backports tracking
format in yaml.
o Misc (3/10)
* Various meetings and discussions.
== Plan ==
o FInish backports, and FSF branch merge for next week snapshot.
== This Week ==
* TCWG-666 (2/10)
- Martin confirmed the assert was spurious that caused some obj-c tests to fail,
removing it passes bootstrap+test.
- Changed option name to -fipa-bit-cp following Honza's suggestion
- Committed as r239769.
* TCWG-779 (4/10)
- Patch iterations based on upstream suggestions.
* Public Holiday (2/10)
* Misc (2/10)
- Background reading on mod/ref analysis
- Meetings
# Progress #
* TCWG-685, GDB 7.12 release. [4/10]
Finish all native testing on ARM. Triaged tests result. Only find
one fail that test assumes HW watchpoint is always available.
Reported it upstream, but need more thoughts on how to fix it.
Both AArch64 and ARM GDB is in a good state, in terms of test results.
* TCWG-533, Remove global variable arm_override_mode. [2/10]
It is paused by 7.12 release, and work on it again. 10 patches are
ready. Being regression tested.
* Analyse the kernel behaviour on single step over fork. [4/10]
Upgrade juno kernel to 4.7.0-rc4+, and verified Will Deacon's patch.
http://lists.infradead.org/pipermail/linux-arm-kernel/2016-August/451711.ht…
With the patch, GDB can correctly single step over fork, however,
GDB is still broken if there is a breakpoint. Write a small
reproducer, but doesn't trigger the problem. It might be a GDB bug
or kernel bug.
# Plan #
* Resume works interrupted by 7.12 release.
--
Yao Qi
== Progress ==
- Got back from Sabbatical and caught up with email/events
- TCWG-610 Support for ARM Exceptions in lld.
Implemented support for SHF_LINK_ORDER and .ARM.exidx in lld, have
this working and tested for
images (both with default and linker scripts) and relocatable ld -r
with the default layout. Currently it looks like relocatable outputs
with linker scripts aren't working at all right now.
== Plan ==
- Hope to send to upstream review next week.
- Write the first pass of the LLVM Cauldron presentation.
== Planned absence ==
Monday 29th August is UK national holiday
