== This week ==
* TCWG-515 - Neon intrinsic testing part 1 (1/10)
- Completed testing on ARM targets
- Identified failure on vclz intrinsic at all optimization levels
* TCWG-524 - Neon intrinsic testing part 4 (1/10)
- Completed ARM testing with no regressions found
* TCWG-525 - Neon intrinsic testing part 5 (1/10)
- Completed ARM testing with no regressions found
* TCWG-528 - Neon intrinsic testing part 6 (1/10)
- Completed ARM testing with no regressions found
* TCWG-529 - Neon intrinsic testing part 7 (1/10)
- Completed ARM testing with no regressions found
* Launchpad 1312931- gcc 4.8 internal compiler error: in add_stores, at
var-tracking.c (2/10)
- Resolved and tested on linaro 4.9 branch
* Linaro Connect Presentation (2/10)
- Completed "Optimization Levels" portion of presentatio
* Misc. (2/10)
- Launchpad to bugzilla transition
- Conference calls with Ryan and Christophe
* Issues
- Delay in validating Launcpad 1312931 due to SchrootFarm instability
- Unable to issue code review on Gerrit after server upgrade
== Next week ==
- USA Holiday, Monday, september 1s
- Continue Neon intrinsic testing
- Finalize Linaro Connect presentation
- Bug fixing
== Progress ==
* TCWG-181 - Bench marking core mark with LTO (2/10)
Measuring -O3 -flto vs -O3 on Aarch64 machine with Linaro GCC and
Trunk FSF GCC.
* TCWG-520 ICE in linaro compiler for ARMv7 target (4/10).
Completed fixing. patch tested on schroot. Backported revision from
trunk using gerrit and jenkins. upstreamed the patch.
* Others (2/10)
* Meetings Christophe, Ryan, Maxim and GCC status meeting
* Misc and internal meeting.
* Discussed with Yvan on using gerrit and backflip script.
4 day week, Friday 29/8 was holiday.
== Plan ==
* Another Bug fixing task .
* Continue Benchmark Core mark with LTO (TCWG-181).
* Upstream patch review.
* Cbuildv2 preparation for hack session in LCU14.
== Progress ==
* Regression on alphaev68-linux-gnu due to uxt/sxt commit (7/10)
- built cross alphaev68-linux-gnu and reproduces it with qemu.
- Issue is due to PROMOTE_MODE definition and VRP truncating values.
- discussed upstream and after a failed patch, it was suggested that
the value ranges have to be calculated in promoted_mode precision.
- Patch to do VRP in promoted_mode is in testing. There are few
failures to fix.
- An easier fix probably is to check the promoted mode against
word_mode and disable uxt/sxt elimination.
* TCWG-521 - Analysed Coremark and Spec2k for uxt/sxt optimizations
TCWG-521(2/10)
- Continue with Coremark and have additional patches in development for
missing cases.
* bswap pr43550 (No card yet) (1/10)
- Finished regression testing. Will post the patch after resolving
regression with alpha.
== Paln ==
* Continue with VRP in promoted mode, TCWG-521 and bswap pr43550.
== Issues ==
* Multiple validation infrastructure issues (gerrit/jenkins/git.linaro.org)
now fixed.
* aarch64-none-elf is now really long to complete (~11hrs) whereas it
was less than 1hr last week.
== Progress ==
* GCC 4.9 2014.09 (3/10)
- Committed last week backports
- More backports under validation
- vca* intrinsics test are faiures analysis ongoing.
* Misc
- Linaro GCC git repo migration: (2/10)
+ Discussed and test the migration with Milo,
we'll be ready to move the coming week.
- Upstream bugzilla: (2/10)
+ Fixed PR 62248 : Configure error with --with-fpu=fp-armv8
- Linaro bugzilla: (1/10)
+ Fixed #562 : New tests failed on linaro 4_9 branch
- Various meetings: (1/10)
- Helped Venkat with backports (1/10)
- launchpad bug migration duty.
== Next ==
* Off on Monday
* Complete backports.
* Back on AArch64 libunwind
* Prepare Connect Hacking session
== Progress ==
* Monday bank holiday (2/10)
* Email, meetings, etc. (1/10)
* Upstream work (1/10, CARD-341)
- Patch review
* Built releases of newlib, binutils and gdb for 2014.09 (2/10)
* LCU14 research and slides (4/10)
== Issues ==
* None
== Plan ==
* Finish LCU slides
* malloc benchmarking
--
Will Newton
Toolchain Working Group, Linaro
== Progress ==
* GCC trunk/4.9 cross-validation (1/10)
- checking results
* bug #306 (bootstrap failure on i686) (3/10)
- fixed an incorrect backport than made GCC build to fail in stage1
- now trying to reproduce the original bug reported
* AArch64 libsanitizer (2/10)
- resumed work, debugged sysroot / chroot problems with cbuild2
thanks to Maxim
* Misc (conf calls, meetings, ...) (4/10)
- usual 1:1 and team calls
- wrote some doc for Wang
== Next ==
* GCC trunk/4.9 cross-validation monitoring
* bug #306 (bootstrap failure on i686)
* AArch64 libsanitizer
* Neon intrinsic tests
== Progress ==
GDB Tracepoints/Fast Tracepoints support on arm [TCWG-480] [4/10]
* FAST tracepoints try out on arm chromebook with trampoline code
borrowed from kernel.
AArch64 gdb record-replay bug fix [TCWG-503][TCWG-498] [2/10]
* Debugging of issues
Miscellaneous [4/10]
* Reading on PreLink for LCU14 Presentation
* Reading on PERF tools for LCU14 Presentation
* LCU14 slides preparation.
* Emails/Patch scrolling/Meetings etc
== Plan ==
GDB Tracepoints/Fast Tracepoints support on arm [TCWG-480]
Some progress on AArch64 gdb record-replay bug fix [TCWG-503] [TCWG-498]
LCU14 slides preparation and study for presentation.
= Progress ==
* Upstream work (2/10, CARD-341)
- Bug investigations
- Applied a couple of patches
* Booting upstream kernel on Chromebook (2/10)
- Kernel booting and running
- No builtin wifi but dongle works ok
- Breakpoint issue fixed but the test still fails for some other
reason, created upstream issue
* Malloc application benchmarking (3/10, TCWG-441)
- Various improvements of the scripts
- Investigate benchmark variability in the presence of frequency scaling
- Is it possible to get repeatable numbers on Intel i{7,5,3}?
* Start looking at LCU session requirements (1/10)
* Annual leave on Friday (2/10)
== Issues ==
* None
== Plan ==
* LCU session slides
--
Will Newton
Toolchain Working Group, Linaro
== Progress ==
* TCWG-180 Debugging - LTO bootstrap failure in Aarch64 with GCC 4.9. (4/10)
Completed. Patch that sets same tune parameters solves the bootstrap
compare errors in Branch. Closed the JIRA cards. There are still LTO
IR streaming issues in trunk which needs to tracked down and fixed at
tree level. and no plans of doing that now.
* TCWG-520 ICE in linaro compiler for ARMv7 target. Bisected the
revision in trunk which fixes that. Backported and tested and fixes
tha bug. (4/10)
* Others (2/10)
* Bug migration from launchpad
* Meetings Christophe, Ryan, Maxim and GCC status meeting
* Misc and internal meeting.
* setup LLVM.
== Plan ==
* Continue Bug fix (TCWG 520).
* Benchmark Core mark with LTO (TCWG-181).
* Upstream patch review.
== MISC ==
* Local Holiday on 29th August
