== Issues ==
* None
== Progress ==
* Take care Linaro binaries release (1/10).
* Send out ccmp patches for community review (TCWG-488, 1/10).
* loop2_invariants heuristics tune (1/10, TCWG-469). One patch was
committed @r212135.
* Constant optimization (TCWG-486, 7/10 )
- Try to keep constant in register when expanding. But benchmark
results show regression due to combine behavior changes.
- Try to keep unsigned constant when expanding. For crc |= 0x8000,
crc is unsigned short. If 0x8000 is represented as unsigned value, no
need to split 0x8000. But in middle-end, wide_int_storage::set_len and
trunc_int_for_mode always do sign extension. "trunc_int_for_mode
(INTVAL (op), mode) == INTVAL (op)" is always checked when checking
operand (e.g. in general_operand of recog.c). And in RTL, there is no
"unsigned" information at all.
== Plans ==
* Update ccmp patches according to comments.
* Continue on constant optimization.
* Ping pending patches.
== Progress ==
* Zero/sign extension elimination (TCWG-15) (10/10)
- Posted two patches for review and gone through few iterations
- Looked at flag_wrapv and !flag_strict_overflow regressions
* ARM (and possibly some other targets) truncates negative values and
this makes them incompatible with the value range in SSA. One solution
is to ignore any gimple statements that load negative constants when
eliminating zero/sign extension elimination.
* We also loose the OVF(INF) information in tree when they are
converted to wide_int and propagated to SSA.
- Testing on a target that support PTR_EXTEND
* Trying to set-up x86_64-linux with -mx32. Still not able to compile
as I am getting various errors in glibc. Looking into it,
== Plan ==
* Upstream zero/sign extension elimination activities
== Week of June 23rd ==
- Continued working on toolchain testing improvements (CARD-1378, 6/10)
-- Various cleanups and improvements to cbuild2.
-- Troubleshooting of Jenkins stability problems.
-- Increasing test coverage for arm big-endian toolchains.
- Various meetings and discussions (3/10)
--
Maxim Kuvyrkov
www.linaro.org
== Week of June 16th ==
- Continued working on toolchain testing improvements (CARD-1378, 6/10)
-- Refactored cbuild2's schroot support after Rob's review
-- Posted updated patches
- Started moving TCWG dev environment master vm to Linaro's AWS (1/10)
-- This the the VM from where toolchain64.lava.schroot and maximk.schroot are synchronized.
-- Once migrated, all TCWG admins can access it, not just me.
- Various meetings and discussions (2/10)
--
Maxim Kuvyrkov
www.linaro.org
== Week of June 9th ==
- Continued working on toolchain testing improvements (CARD-1378, 6/10)
-- Added support for native testing inside schroot
-- Troubleshooting of various problems
-- Assisted Yvan in testing of the 2014.06 source release and general fire-fighting
- Various meetings and discussions (2/10)
- Interviewed 2 potential assignees (1/10)
--
Maxim Kuvyrkov
www.linaro.org
== Progress ==
* Patch review, testing and follow-up (4/10, CARD-341)
- glibc 2.20 freeze upcoming
- submit some warning fix patches
* Add support for ARM HWCAP2 to glibc (2/10, TCWG-499)
* Submit a patch for increasing ld max page size on ARM (1/10)
* Reformatted backports spreadsheet for glibc, binutils and gdb (1/10)
* Investigated language runtimes (1/10)
* Meetings (1/10)
== Issues ==
* None
== Plan ==
* More glibc patch work for the freeze (1st July)
* malloc benchmarking
--
Will Newton
Toolchain Working Group, Linaro
== Progress ==
* GCC trunk cross-validation (CARD-647) (6/10)
- email robot is now working
- added list of "ignored" tests when reporting regressions, mainly
because they are unstable when run under qemu (threads...)
- a57+crypto FPU config looks OK
- tried to use "contrib/test_summry" to send results, but that would
flood gcc-testresults mailing-list
- looked at impact of using CFLAGS/CFLAGS_FOR_TARGET etc upon
libstdc++ tests. Needs deeper investigation
- robustified scripts to handle more compute farm errors (random
"interrupted system call")
* AArch64 libsanitizer: no progress this week
* Neon intrinsic tests: review started
* Misc (meetings, conf-calls, ...) 4/10
- 4.7-2014.06 release done, benchmarks on-going
== Next ==
* GCC cross-validation
- look more deeply at the impact of the various CFLAGS (on testsuites results)
* Neon intrinsic tests:
- handle feedback
* AArch64 libsanitzer: resume work
* Publish 4.7-2014.06 release
== Progress ==
* Toolchain (CARD-862 1/10)
- Testing Compiler-RT on autoconf/ARM
- Checking LLD
* Automation Framework (CARD-1378 6/10)
- Writing script to manage TCWG rack
- Testing D01 with new kernel
- Testing Chromebook 2 vs. 1 vs. D01 for LLVM
- Cleaning up failed Chromebooks
- Pointlessly working on beagle bones
* Background (3/10)
- Code review, meetings, discussions, etc.
- Starting the GCC + LLVM presentation
== Plan ==
* continue trying to build compiler-rt with autoconf on ARM
* continue working on the LLVM + GCC presentation
* initial investigations on lld and MCLinker
