== Progress ==
* [Lab] ASAN test fails with glibc 2.23 [TCWG-811] [4/10]
- This issue is keeping us from moving one of the TK1 bots into production
- Committed a patch upstream, but it broke on an x86_64 bot when
compiling with -m32
- I tracked the problem to the wrong glibc function being used when
-fsanitize=address is provided on the command line
- Reported the problem on the mailing list
* Add worktree module to tcwg-release-tools [TCWG-783] [4/10]
- Made good progress on this, should be ready for review soon
* Misc [2/10]
- Code reviews, preparing for Connect
== Activity ==
Exceptions.
Another attempt at ARM exceptions support. I did get some more fine
grained comments back which have been addressed, but no approval to
commit yet.
Some follow up over whether ld -r support for merging output sections
is necessary, answer seems to be yes as kernel modules depend on it.
I've volunteered to post a simpler patch without ld -r support as this
is a very niche use case. Not had any feedback yet so will just post
it next week.
TLS
Fixed TLS support in lld so that it does not attempt to follow lld's
generic relaxation model, which can't be implemented in ARM. Still
some work to do for static linking.
== Next Week ==
Out of office at Linaro Connect in Las Vegas
== Planned Absences ==
Holiday 10th to 14th October
* Two days off [4/10]
# Progress #
* TCWG-685, GDB 7.12 release. [2/10]
Patch "keep RES0 bits in CPSR" is pushed into mainline and 7.12.
Find a GDBserver bug, and open PR 20627. It is target independent,
but may block the release. :(
* TCWG-518, Range stepping in ARM. [3/10]
Regression test is done. Find some other issues exposed by my
patches, and fix them. Need to post patches upstream for review.
* Misc [1/10]
Close gdbserver in mi_gdb_exit. The bug breaks the aarch64 multi-arch
testing. Patch is pushed in.
File expense for GNU Cauldron travel.
# Plan #
* Linaro Connect.
--
Yao Qi
Hello,
I'm using Linaro GCC 4.9-2015.01-3 for AArch64, and trying to disable the
generation of guarded instructions. More specifically, I'd like not to see
instructions such as 'cset', 'csinc', 'ccmp', 'fccmp', etc.
So far, it seemed that the flag '-fno-if-conversion2' could do the job, but
I still see those instructions in my disassembled program functions (I
guess that it may not be possible to remove them from standard libs).
My command line:
aarch64-linux-gnu-gcc -static -march=armv8-a -O3 -fno-strict-aliasing
-fno-if-conversion2
I also tried '-fno-if-conversion' and both '-fno-if-conversion
-fno-if-conversion2' without success.
Regards,
--
Fernando A. Endo, Post-doc
INRIA Rennes-Bretagne Atlantique
France
o Travel from Cauldron (2/10)
o One day off (2/10)
== Progress ==
o Linaro GCC/Validation (7/10)
- Started backports for 2016.10
- Investigating 4.9.4 branch marge validation issues
- Extended validation monitoring, tried to reproduce an OOM issue.
o Misc (3/10)
* Various meetings and discussions.
* Connect preparation
== Plan ==
o Tuesday off
o Continue on-going tasks and travel to LAS16
== Progress ==
* Validation
- patch reviews (Jenkins jobs, abe)
* GCC
- reported a few regressions on trunk
- looked at making reporting scripts more robust
at handling DejaGnu errors that could otherwise
be un-noticed
* Binutils
- backported a fix from trunk to linaro-2.27 branch, to close bug
2518 (linker SEGV)
- investigating https://sourceware.org/bugzilla/show_bug.cgi?id=20608
"Relocation truncated to fit: R_ARM_THM_JUMP24 for relocation to PLT entry"
* misc (conf-calls, meetings, emails, ....)
- Connect preparation
== Next ==
- monitor GCC trunk regressions
- release scripts/abe
- backports/reviews
- Binutils bug 20608
== Progress ==
* Validation
- patch reviews (Jenkins jobs, abe)
- helped on release infra/scripts
* GNU Cauldron
- useful discussion with several maintainers
* GCC
- progress on PR 67591 (ARM v8 Thumb IT blocks deprecated)
First patch posted, I will need benchmark results.
* misc (conf-calls, meetings, emails, ....)
== Progress ==
- Connect slides
- Return jump function - working on prototype
- Revised and posted early-vrp
- Revised and posted patch for PR72835
== Next ==
- Work on IPA/LTO improvements
- Wrap-up connect slides
- Follow up on pending patches
== This Week ==
* TCWG-807 (4/10)
- Wrote patch for extending ipa-bits-cp with pointer alignment propagation,
* TCWG-779 (2/10)
- Removed obstack for fmt building and added %I to pp_format for
printing vec<int>
- Posted patch upstream for feedback
* TCWG-319 (1/10)
- Tried random hacks to lib/target-supports.exp, none of which worked :(
* TCWG-72 (1/10)
- Upstream discussion about optab_libfunc() issue with
Richard Sandiford and Richi
* Misc (2/10)
- Travel from Cauldron
- Meetings
- Lava job #1118698 failed with infrastructure error: "Unable to download",
restarted as #1123350
== Next Week ==
- Prepare slides for connect
- Continue ongoing tasks
== Progress ==
* [AArch64] Support for label arithmetic in the assembler [TCWG-710]
- 2 patches in upstream review
* Handle special cases in AArch64InstrInfo::GetInstSizeInBytes [TCWG-757]
- Committed a patch for stackmap / patchpoint sizes
- Since this was a bit cumbersome to test otherwise, I had to add
unit tests for it, which took a bit of CMake plumbing because these
are the first target-specific unit tests in LLVM
* Add worktree module to tcwg-release-tools [TCWG-783]
- Started working on it
* Misc
- Helped test/setup the new TK1 buildbots
== Plan ==
* Add worktree module to tcwg-release-tools [TCWG-783]
* Help get the TK1 buildbots into a stable state
* Ping upstream patches
