All,
During Connect the suggestion was made that each working group should have
its own IRC Channel for discussions and topics relating to the group in
particular (as opposed to #linaro which is 'generic' Linaro conversations).
Therefore I have just set up #linaro-tcwg on Freenode for the Toolchain
Working Group.
This channel is public and open to anyone who wants to talk with the TCWG
group about anything toolchain related.
Thanks,
Matt
--
Matthew Gretton-Dann
Toolchain Working Group, Linaro
== Progress ==
LLDB development
-- Testing and bug fixing lldb on hikey AArch64 [TCWG-886] [7/10]
-- Improve error handling of AArch64 watchpoint code. Submitted,
got reviewed and committed http://reviews.llvm.org/D12328
-- Looked into ways to improve watchpoint installation lag.
-- Looked into issues pertaining to un-alligned watchpoints installation.
-- Committed upstream arm hardware breakpoint and watchpoint support
[TCWG-770] [TCWG-794] [1/10]
-- Ran lldb testsuite in various combinations to figure out Arm and
AArch64 status [1/10]
-- Testing on chromebook with precise chroot works.
Miscellaneous [1/10]
-- Meetings, emails, discussions etc.
== Plan ==
LLDB development
-- Try to find ways to debug lldb-server platform forked gdbserver instance.
-- Test, debug and fix testsuite failures on Arm and AArch64.
== Progress ==
LLDB development
-- Testing and bug fixing lldb on hikey AArch64 [TCWG-886] [2/10]
-- Looked into watchpoint tests which are still failing after
committing watchpoint support and bug fixes.
-- Modifications to arm hardware breakpoint and watchpoint support
[TCWG-770] [TCWG-794] [7/10]
-- Resubmitted the pending patch http://reviews.llvm.org/D9703
-- Testing on chromebook with precise chroot works.
Miscellaneous [1/10]
-- Meetings, emails, discussions etc.
-- Looking into slow data transfer issues on chromebook and highkey board
== Plan ==
LLDB development
-- Get patches reviewed and committ them.
-- Continue looking into tests which are still failing on Arm and AArch64
-- Run test comparison between linux x86, android arm and linux arm
o 3 days off (6/10)
== Progress ==
o Linaro GCC validation (3/10)
* Reviewed, validated and committed on-going backports
* backported more revisions
o Misc (1/10)
* Various meetings
== Plan ==
o Continue backports/validation
== Progress ==
* Annual Leave (2/10)
* Widening pass (TCWG-547) - 6/10
- Fixed all execution test failure.
- bootstrap failure due to “Drop copy-rename” is still not resolved.
Found a workaround.
- Sorted debug_stmt handling
* TACT 1/10
- Started looking to cross execution set-up
* Misc - 1/10
- gcc-patches, gcc-bugs list
== Plan ==
* Continue with widening pass
== This Week ==
* TCWG-777 (3/10)
- Fixed ICE with the patch - toolchain builds with the patch.
- Sent patch to tcwg list for review
- Investigating why combine fails to combine
arm_andsi3_insn/arm_cmpsi_insn into zeroextractsi_compare0_scratch
when the pass uses ud-chains to find def but works
when def is found using ad-hoc way.
* TCWG-871 (4/10)
- Getting familiar with firefox build system
- LTO build lto/non-lto on x86 and arm (doc)
- Figuring out how to resolve "plugin needed to handle lto object" error.
tried the following:
binutils configured with: --enable-plugin, --enable-lto
gcc configured with: --enable-lto --with-ld-plugin=<just built ld>
Doesn't appear to work.
* TCWG-835 (1/10)
- Build failure with spec (PR67399)
* Misc (2/10)
- Meetings
- Looked at rtl dataflow (df.h and df*.c) and ree.c
== Next Week ==
Continue with TCWG-777, TCWG-835, TCWG-871
== This week ==
* TCWG-832 -Exploit vector multiply by scalar instructions when multiple
scalars are used as
coefficients in a loop (2/10)
- Initial investigation.
* TCWG-833 - Exploit Wide Add operations when appropriate (4/10)
- Ramana is reviewing Aarch32 patch
- Recoded Aarch64 support to use vect_select
- Debugging Aarch64 lto, tree-dump regression suite failures
* TCWG-834 - Use non-unit stride loads by preference when applicable (1/10)
- TCWG 834 is Bugzilla 67323 upstream; Richard Biener took ownership
as a vectorizer failure
- My plan was to write a test case that failed until fixed, but
Richard indicated this is not
standard practice
- Bugzilla 57195 (mode iterator bug) blocked compiling new pattern (1/10)
- Separated patch from Bugzilla 67321 patch and sent upstream
- Pinged upstream for comments
- Bugzilla 67320 - Incorrect standard names for wide addition (1/10)
- committed upstream in trunk
* Misc (1/10)
- Conference calls
== Next week ==
- Resolve Aarch64 TCWG-833 patch, validate and upstream
- Additional investigation into TCWG-832
# Progress #
* TCWG-857 [3/10]
With one kernel fix, HW breakpoint works for unaligned address
(2-byte aligned).
Debug linux kernel with KGDB. KGDB exposes an existing GDB bug, I
fixed it, but need some time thinking about how to submit it upstream.
* TCWG-567, arm watchpoint fixes [4/10]. All fails are fixed, but need
another round of test to confirm. ARM HW watchpoint doesn't work on
4.0.0 kernel, but I don't investigate on it.
* TCWG-757 [2/10], some patches review.
* Misc, meeting, [1/10]
# Plan #
* TCWG-857.
* Upstream the leftover of aarch64 multi-arch patches.
--
Yao
