== Progress ==
- ldr rt,= implementation transform to MOV committed upstream
[TCWG-468] [PR25722]]
-- Thanks to Renato for committing.
- Started looking at what would be needed to port lld to ARM
-- The ELF lld port looks to have a fairly small amount of
architecture specific hooks. Decided that I would learn fastest by
just trying to do an ARM only prototype port to see if I could get
hello world on linux working.
-- spent too much time trying to think about how to best implement the
group relocations for the PLT sequences then remembered that for a
quick prototype I could use larger sequences that didn't need the
relocations.
== Plan ==
- Continue working on an ARM LLD port. Will hopefully have a good idea
of what the scope of work needed is next week.
The Linaro Toolchain Working Group (TCWG) is pleased to announce the
2016.05 snapshot of both Linaro GCC 5 and Linaro GCC 6 source
packages.
Linaro GCC 6 monthly snapshot[1] is based on FSF GCC 6.1+svn236106 and
includes performance improvements and bug fixes backported from
mainline GCC. This snapshot contents will be part of the 2016.08
stable[2] quarterly release.
This snapshot tarball is available on:
http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.1-2016.05/
Interesting changes in this GCC source package snapshot include:
* Updates to GCC 6.1+svn236106
Linaro GCC 5 monthly snapshot[1] is based on FSF GCC 5.3+svn236108 and
includes performance improvements and bug fixes backported from
mainline GCC. This snapshot contents will be part of the 2016.08
maintenance release.
This snapshot tarball is available on:
http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.3-2016.05/
Interesting changes in this GCC source package snapshot include:
* Updates to GCC 5.3+svn236108
* Backport of [Bugfix] [AArch32] PR target/70711 Fix big-endian ARMv8.1-A builds
* Backport of [Bugfix] [AArch64] PR target/70044 -flto turns on
-fomit-frame-pointer
* Backport of [AArch32] Reduce size of arm1020e automaton
* Backport of [AArch64] Fix SIMD predicate
* Backport of [AArch64] Fix thinko in handling of
-momit-leaf-frame-pointer option
* Backport of [Testsuite] [AArch32] Tests for arm_restrict_it patterns
in thumb2.md
* Backport of [Testsuite] gcc-dg: handle all return values when
shouldfail is set
Subscribe to the important Linaro mailing lists and join our IRC
channels to stay on top of Linaro development.
** Linaro Toolchain Development "mailing list":
http://lists.linaro.org/mailman/listinfo/linaro-toolchain
** Linaro Toolchain IRC channel on irc.freenode.net at @#linaro-tcwg@
* Bug reports should be filed in bugzilla against GCC product:
http://bugs.linaro.org/enter_bug.cgi?product=GCC
* Interested in commercial support? inquire at "Linaro support":
mailto:support@linaro.org
[1]. Source package snapshots are defined when the compiler is only
put through unit-testing and full validation is not performed.
[2]. Stable source package releases are defined as releases where the
full Linaro Toolchain validation plan is executed.
== Progress ==
* 3 days off (Mon/Thu/Fri) [6/10]
* Inline assembly constraints support for ARM [TCWG-560] [3/10]
- More investigations for PR24071; found the cause of the bug,
working on a fix.
* Rework LLVM helper scripts [TCWG-571] [1/10]
- Addressed code review comments.
- The interface changes to llvm-projs and llvm-sync are now committed.
== Plan ==
* Inline assembly constraints support for ARM [TCWG-560]
- Come up with a fix for PR24071
* Rework LLVM helper scripts [TCWG-571]
- Investigate git worktree and how it could be factored into our
scripts (llvm-projs, llvm-build)
o 2 days off (4/10)
== Progress ==
o Extended validation (4/10)
* Change extended native job to use multiple scm
* Investigate validation issues when binary tarballs are created
o Linaro GCC (1/10)
* Finalized and submitted new Linaro development branch script.
o Misc (1/10)
* Various meetings and discussions.
== Plan ==
o Create Linaro GCC 6 branches
o Continue on validation and upstream work.
* 2 days off (Thu/Fri)
== Progress ==
* Validation
- restarted validations for pending backports, after the various
branches updates
- started looking at armv8l vs arm results differences
* GCC
- checked trunk regression reports
- updated AArch32 Neon intrinsics tests. Patch series almost ready
for submission
* Misc (conf-calls, meetings, emails, ....)
== Next ==
* Validation
- cleanup
- reviews
- armv8l vs arm
* GCC
- trunk monitoring: check why builds were killed after timeout
- more intrinsics tests
== This Week ==
* LTO (7/10)
a) TCWG-548 (2/10)
- Fixed a minor bug in the patch
- Results of variable partitions with chromium: http://pastebin.com/fLD2JzgP
- Significant difference in size of last partition could probably
indicate sth wrong with
patch (all unpartitioned variables go to last partition).
b) TCWG-528 (3/10)
- Posted upstream after bootstrap+test passed on ppc64le-linux-gnu
- Addressed Richard's comments.
c) TCWG-299 (2/10)
- Firefox built on aarch64 natively (r1-a12) non LTO with gcc-5 branch
- Fails to build with trunk due to issues in firefox codebase (PR70722)
- Fails to build on armhf with following error: http://pastebin.com/9xydVtjj
* TCWG-72 (2/10)
- Rebased patch
- Addressed Ramana's comments
* Misc (1/10)
- Meetings
== This Week ==
- LTO: benchmark section anchors patch, submit patch for
increase_alignment upstream, firefox
- TCWG-72: Test and submit upstream
* Monday off [2/10]
# Progress #
* TCWG-468, ldr rt, =immediate
Have a feature complete implementation. Passes existing regression tests.
Still need to add more tests for new functionality and see if
implementation can be tidied up a bit
* Setting up a local chromebook to run the regression-tests. Should
now be able to run test suite on ARM relatively easily.
# Plan #
* Complete TCWG-468 and send upstream for review.
* Pick something else up.
* Monday off [2/10]
# Progress #
* TCWG-518, arm linux range stepping patches. [5/10]
Tried different ways to manage breakpoints, but the program still
gets SIGILL from time to time. Post my WIP patches upstream to see
if people have some ideas on this.
* TCWG-547, [1/10].
Try two approaches but give up due to the quite aggressive interface
changes. Fortunately, the change in the third approach is quite
small, testing the patch.
* Misc, meeting, [2/10]
# Plan #
* TCWG-518, TCWG-547
--
Yao
== Progress ==
* GCC Stage-1 (5/10)
- Posted patches and revised based on review
- PR40921 and PR63586
- Getting ready post type promotion pass again
* Linaro bug (2/10)
- BUG 2195 and BIG 1979
- Investigation with trunk and educed test case shows Missing commit
* Misc (1/10)
- GCC Lists
* Public holiday (2/10)
== Plan ==
* Attend to pending stage1 patches
