[Weekly] 25-29 April 2016

== This week == * Bugzilla 69663 - [ARM] Implement overflow arithmetic standard names (0/10) - Pinged upstream; no response yet * Bugzilla 70089 - ARM/THUMB unnecessarily typecasts some rvalues on memory store (6/10) - Created updated patch that resolves 8/9 failures - Investigating

[Weekly] 11-15 April 2016

== This week == * Bugzilla 70089 - ARM/THUMB unnecessarily typecasts some rvalues on memory store (1/10) - Arm backend is not recognizing that some constants can be encoded using modified immediate - This is causing constant to be split and additional code generated - Range of

[Weekly] 28 March - 01 Apr

== This week == * Bugzilla 69008 - gcc emits unneeded memory access when passing trivial structs by value (ARM) (3/10) - Additional investigation and preliminary implementation * Bugzilla 70089 - ARM/THUMB unnecessarily typecasts some rvalues on memory store (1/10) - Investigation *

[Weekly] 07-11 March 2016

== This week == * Bugzilla 69663 - [ARM] Implement overflow arithmetic standard names (3/10) - Resolved thumb2 failures - Negdi2 was not generating instruction to set condition codes * Bugzilla 70008 - [ARM] Reverse subtract with carry can be generated in thumb2 mode (1/10) - Created

[Weekly] 22-26 February 2016

== This week == * Bugzilla 69663 - [ARM] Implement overflow arithmetic standard names (6/10) - Tested and posted SImode and DImode patch upstream - Feedback recommended supporting thumb2 in addition to arm architectures - Patch to support thumb2 fails on all thumb architectures;

[Weekly] 15-19 February 2016

== This week == * Bugzilla 69663 - [ARM] Implement overflow arithmetic standard names (4/10) - Successfully tested SImode add, sub, and neg overflow patterns - Resolved DImode addv and subv code generation issues. - Minor cleanup work remains before posting upstream * Bugzilla 69008 - gcc

[Weekly] 08-12 February 2016

== This week == * Bugzilla 69663 - [ARM] Implement overflow arithmetic standard names (3/10) - Successfully tested SImode add, sub, and neg overflow patterns - Developed DImode addv and subv patterns - Debugging failures in DImode overflow patterns * TCWG 833 - [ARM] Exploit Wide Add

[Weekly] 01-05 February 2016

== This week == * Backports (1/10) - 232493 - Committed to Linaro branch - 232727 - Committed to Linaro branch - 232414 - Committed to Linaro branch * Bugzilla 69663 - [ARM] Implement overflow arithmetic standard names (5/10) - Implemented SImode add, sub, and neg overflow

[Weekly] 25-29 January 2016

== This week == * Backports (3/10) - 232493 - Unrelated aarch64 failure and non-thumb asan test on aarch32 big endian - 232600 - All tests pass - 232727 - unrelated non-thumb test failure asan/deep-thread-stack-1.c asan/deep-thread-stack-1.c) * Bugzilla 68543 - [AArch64]

[Weekly] 18-22 January 2016

== This week == * Backport 232414 (2/10) - Successfully backported using backflip. - Investigating one fortran failure on aarch64-linux-gnu * Bugzilla 68543 - [AArch64] Implement overflow arithmetic standard names (3/10) - Re-implementing using sign/zero extends * Misc (1/10) *

[Weekly] 11-15 January 2016

== This week == * Bugzilla 68543 - [AArch64] Implement overflow arithmetic standard names (6/10) - Re-implementing using sign/zero extends as this was not clear from the documentation * Bugzilla 69008 - gcc emits unneeded memory access when passing trivial structs by value (1/10) -

[Weekly] 04-08 January 2016

== This week == * Bugzilla 68543 - [AArch64] Implement overflow arithmetic standard names (2/10) - Fixed bugs in assembly generation in patterns - Investigated testing of overflow patterns * Bugzilla 69008 - gcc emits unneeded memory access when passing trivial structs by value (3/10)

[Weekly] 07-11 December 2015

== This week == * Bugzilla 68543 - [AArch64] Implement overflow arithmetic standard names (7/10) - Implemented signed and unsigned add, subtract, and multiply overflow standard patterns - Investigated testing of overflow patterns * Misc (3/10) - Conference calls - Misc ARM

[Weekly] 30 November - 4 December 2015

== This week == * TCWG-317 - Exploit wide add operations when appropriate for Aarch32 (0/10) - No comments/review upstream will ping for update * TCWG-316 - Exploit vector multiply by scalar instructions (4/10) - Code improvements will require standard name for vectorizer and new

[Weekly] 23-27 November 2015

== This week == * TCWG-317 - Exploit wide add operations when appropriate for Aarch32 (4/10) - Determined that big endian failure is unrelated to vaddw. - Bug filed upstream: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68532 - Sent modified patch upstream for approval with

[Weekly] 16-20 November 2015

== This week == * TCWG-317 - Exploit wide add operations when appropriate for Aarch32 (5/10) - Blocked as I have not yet determined why the pattern fails on big endian targets * TCWG-369 - Exploit wide add operations when appropriate for Aarch64 (1/10) - Modified code based on minor

[Weekly] 02-06 November 2015

== This week == * TCWG-369 - Exploit wide add operations when appropriate for Aarch64 (4/10) - Determined that vectorizer is failing for all targets that have widening adds with V8HI to V4SI support (aarch64, ia64, powerPC). - Modified test cases to indicate expected failure with

[Weekly] 26-30 October 2015

== This week == * TCWG-317 - Exploit wide add operations when appropriate for Aarch32 (3/10) - Could not reproduce test failure in qemu - Waiting on feedback from Maxim who is running patch on Linaro validation * TCWG-369 - Exploit wide add operations when appropriate for Aarch64 (4/10)

[Weekly] 19-23 October 2015

appropriate for Aarch64 (4/10) - Resolved three of six test suite failures * Misc (1/10) - Conference calls == Next week == - TCWG-317 - Resolve lto big endian failures by debugging test cases with qemu - TCWG-369 - Resolve remaining test suite failures -- Michael Collison Linaro Toolchain

[Weekly] 12 - 16 October 2015

== This week == * TCWG-317 - Exploit wide add operations when appropriate for Aarch32 (6/10) - Debugging failures on -flto/big endian combination - Wrote code for big endian lane support; failures still exist - Debugging lto to see if optimization is causing failures * TCWG-77 -

[Weekly] 28 SEPTEMBER - 2 October 2015

== This week == * TCWG-317 - Exploit wide add operations when appropriate for Aarch32 (4/10) - Patch sent upstream for review - Fixed some failing tree-ssa testcases by modifying 'check_effective_target_vect_widen_sum_hi_to_si_pattern' to indicate Aarch32 supports vector widening add

[Weekly] 07-11 SEPTEMBER 2015

== This week == * TCWG-316 -Exploit vector multiply by scalar instructions when multiple scalars are used as coefficients in a loop (5/10) - Wrote patterns to allow combine pass to mergenon-standard multiply by lane patterns. * Bugzilla 57195 (mode iterator bug) blocked compiling new

[Weekly] 31 AUGUST - 04 SEPTEMBER 2015

== This week == * TCWG-832 -Exploit vector multiply by scalar instructions when multiple scalars are used as coefficients in a loop (4/10) - Continued investigation. * TCWG-833 - Exploit Wide Add operations when appropriate (4/10) - Reworked Aarch64 patch to avoid redundant moves -

[Weekly] 24-28 AUGUST 2015

== 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

[Weekly] 17-21 AUGUST 2015

== This week == * TCWG-833 - Exploit Wide Add operations when appropriate (8/10) - Reworked patch to use vect_select instead of unspec as requested by Ramana - Bugzilla 57195 (mode iterator bug) blocked compiling new pattern - Created patch which successfully bootstrapped -

[Weekly] 10-14 AUGUST 2015

== This week == * TCWG-140 - Transform end of loop conditions to min_expr (4/10) - Wrote initial test case as requested by maintainers - Need to determine how to not run test case on targets with no MIN_EXPR/MAX_EXPR * TCWG-833 - Exploit Wide Add operations when appropriate (4/10) -

[Weekly] 27-31 JULY 2015

== This week == * TCWG-146 - Detect smin/umin idiom (1/10) - Incorporated final feedback and submitted code in SVN * TCWG-140 - Transform end of loop conditions to min_expr (1/10) - Misc. discussion upstream about concerning where optimization should be performed - Upstream

[Weekly] 20-24 JULY 2015

== This week == * TCWG-146 - Detect smin/umin idiom (1/10) - Made change recommended upstream and resubmitted * TCWG-140 - Transform end of loop conditions to min_expr (1/10) - Validated and submitted upstream * TCWG-833 - Exploit Wide Add operations when appropriate (5/10) - Added

[Weekly] 13-17 JULY 2015

== This week == * TCWG-140 - Transform end of loop conditions to min_expr (1/10) - Blocked waiting on validation * TCWG-833 - Exploit Wide Add operations when appropriate (7/10) - Developed patch to handle signed and unsigned cases for Aarc32 - Investigation and debugging into support

[Weekly] 06-10 JULY 2015

== This week == * TCWG-146 - Detect smin/umin idion (0/10) - Waiting for upstream approval/review * TCWG-140 - Transform end of loop conditions to min_expr (1/10) - Blocked waiting on validation * TCWG-833 - Exploit Wide Add operations when appropriate (8/10) - Mere detailed

[Weekly] 22-26 JUNE 2015

== This week == * TCWG-146 - Detect smin/umin idion (1/10) - Patch sent upstream for approval * TCWG-140 - Transform end of loop conditions to min_expr (4/10) - Patch and investigating validation regressions * TCWG-833 - Exploit Wide Add operations when appropriate (4/10) -

[Weekly] 25-29 MAY 2015

== This week == * Bug 539 - .LTHUNK symbols are surviving (2/10) - Built Qt 4.8 using 4.9 and 4.9 toolchain and verified fix identified by Jim Wilson - Plan to close as fixed * Bug 535 - static cast from float to int not working on ARM hardfp (2/10) - Investigation * TCWG-140 -

[Weekly] 18-22 MAY 2015

* TCWG-140 - Transform end of loop conditions to min_expr (3/10) - Investigation into blueprint and patch * TCWG-146 - Detect smin/umin idiom (3/10) - Developing patch for Aarch64 for completeness * Vacation (4/10) == Next week == - Complete Aarch64 patch for TCWG-146 - Validate

[Weekly] 27 APR-01 MAY 2015

* Absence (illness) (9/10) * Misc (1/10) - Conference calls == Next week == - Unsure due to computer related injury ___ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org https://lists.linaro.org/mailman/listinfo/linaro-toolchain

[Weekly] 20-24 APR 2015

* Backports (4/10) - Local backports completed - 218531 - Fix ICE at -O0 on vld1_lane intrinsics (and dependencies listed below) - 212756 - [AArch64] Implement vfma_f64, vmla_f64, vfms_f64, vmls_f64 intrinsics. - 215180 - [AArch64] Simplify vreinterpret for float64x1_t

[Weekly] 23-27 MAR 2015

== This week == * Backports (9/10) - Local backports completed - 218145 - Add Cortex-A17 support - 218146 - Add -mcpu=cortex-a17.cortex-a7 - 219472 - Use Cortex-A17 tuning parameters for Cortex-A12 - 219724 - Add a new scheduling description for the ARM

[Weekly] 16-20 MAR 2015

== This week == * Backports (9/10) - 218432 - Clarify the usage of SCHED in AARCH64_CORE macro - 218635 - Change all AARCH64_FL_FPSIMD to AARCH64_FL_FOR_ARCH8. - 219470 - Implement TARGET_SCHED_MACRO_FUSION_PAIR_P - 219656 - Update APM/XGene-1 costs - 219657 - xgene1 machine

[Weekly] 09-13 FEB 2015

== This week == * Activity for 2015.03 release (2/10) * Backports (5/10) - 217229 and 216220 - Investigating dependencies - Local backports and build only - 218007 - [1/5] Implement TARGET_SCHED_MACRO_FUSION_PAIR_P - 218010 - [2/5] Implement adrp+add fusion - 218012 -

[Weekly] 23-27 FEB 2015

== This week == * - ARM internal code generation conference (4/10) * Backports (4/10) - 217256 - aarch64_tls_operand_p - 217725 - Improve modeled latency between FP operations and FP-GP register moves - 217780 - Adjust generic move costs - 217852 - Add range-check for Symbol +

[Weekly] 16-20 FEB 2015

== Next week == - ARM CodeGen conference in Cambridge -- Michael Collison Linaro Toolchain Working Group michael.colli...@linaro.org ___ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro

[ANNOUNCE] Linaro GCC 4.9 and 4.8 2015.02 released

] Engineering source package releases are defined as releases where the compiler is only put through unit-testing and full validation is not performed. -- Michael Collison Linaro Toolchain Working Group michael.colli...@linaro.org ___ linaro-toolchain

[Weekly] 19-23 JAN 2015

== This week == * Backports (3/10) - 217091 - fix unsafe access to deallocated stack - 217118 - Int div by constant compilation enhancement - 219717 - PR rtl-optimization/64011 - 219718 - Improve warning message - 217175 - M0/M1 small multiply - 217185 - Fix ChangeLog

[Weekly] 12-16 JAN 2015

== This week == * GCC Modularization Project (1/10) - Flattening header files - Reviewed expr.h patches and email discussion regarding post stage 3 development * Bug Fixing (7/10) - Bug 539 - .LTHUNK symbols are surviving - Triage indicates bug is multiple inheritance related

[Weekly] 05-09 JAN 2015

== This week == * GCC Modularization Project (1/10) - Flattening header files - tree.h and tree-core.h flattening approved and checked in upstream * Backports (8/10) - [AArch32] Improve 64 bit division performance - Backported nine items 211789 - 211797 - Code review complete

[Weekly] 08-12 DEC 2014

== This week == * GCC Modularization Project (9/10) - Flattening header files - Submitted tree-core.h, and tree.h patches for review - Successfully tested on platforms listed in config-list.mk - Reviewed and tested patches from Prathamesh * Misc (1/10) - Conference calls == Next

[Weekly] 24-28 NOV 2014

== This week == * GCC Modularization Project (5/10) - Flattening header files - tree-core.h - Building revealed required flattening other include files: c-common.h and tree.h - c-common.h and tree.h - Flattening is in progress - cfgloop.h - Reviewed, bootstraped

[Weekly] 17-21 NOV 2014

== This week == * GCC Modularization Project (7/10) - Flattening header files - Submitted gimple-streamer.h, tree-streamer.h, lto-streamer.h patches to gcc-patches list - tree-core.h - Several rounds of changes based on review and bootstraps - final fifty target bootstrap

[Weekly] 10-14 NOV 2014

== This week == * GCC Modularization Project (4/10) - Flattening header files - gimple-streamer.h, tree-streamer.h, lto-streamer.h - Additional updates based on review: - Additional fixes based on boostrapping in contrib/config-list.mk - Boostrapped changes on all

[Weekly] 27-31 OCT 2014

== This week == * GCC Modularization Project (7/10) - Decided on work near term work objectives with Andrew Macleod - Began flattening header files - gimple-streamer.h (complete) - tree-streamer.h (complete) - lto-streamer.h (complete) - tree-core.h (In progress) -

[Weekly] 20-24 OCT 2014

== This week == * GCC Modularization Project (5/10) - Reviewed Re-Architecture GNU Cauldron videos by Andrew Macleod - Reviewed tree/gimple source base * Linaro bugzilla 602 - gcc 4.7.3 compiler internal error while building hsail components (2/10) - Resolved bug by determining that

[Weekly] 13-17 OCT 2014

== This week == * GCC Modularization Project (5/10) - Reviewed previous documentation by Joseph Meyers - Reviewed source base to understand issues * Linaro bugzilla 602 - gcc 4.7.3 compiler internal error while building hsail components (3/10) - Reproduced with 4.7. Triage indicates

[Weekly] 29 SEPT - 3 OCT 2014

== This week == * TCWG-515 - Neon intrinsic testing part 1 (5/10) - Developed fix for vclz DejaGnu failure - Tested on ARM hardware * Linaro bugzilla 602 - gcc 4.7.3 compiler internal error while building hsail components (1/10) - Unable to reproduce with either Linaro 4.8 or 4.9 *

[Weekly] 22-26 SEPT 2014

== This week == * TCWG-515 - Neon intrinsic testing part 1 (6/10) - developed reduced test case to demonstrated vclz DejaGnu failure - Created upstream bug (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63365) - Bug triage discovered issue occurs in copy propagation * Linaro Bugzilla 331

[Weekly] 01-05 SEPT 2014

== This week == * USA Holiday, Monday September 1st * TCWG-534 - Neon intrinsic testing part 8 (2/10) - Tested final eighteen neon intrinsics on ARM with no regressions identified - Unable to test on aarch64 due to test harness issues * Linaro Bugzilla 331 - [4.9 Regression] ICE in

[Weekly] 25-29 AUG 2014

== 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

[Weekly] 18-22 AUG 2014

== This week == * TCWG-515 - Neon intrinsic testing part 1 (1/10) - Attempting testing on ARM targets; resolving build failures * TCWG-524 - Neon intrinsic testing part 4 (2/10) - Completed AARCH64 testing with no regressions found * TCWG-525 - Neon intrinsic testing part 5 (2/10) -

[Weekly] 28 July - 1 August 2014

== This week == * Neon intrinsic testing (4/10) - Patched sources with Christophe's patches - Ran Neon intrinsic tests for vclz and vqadd - Investigating regressions * On leave Monday and Tuesday; out sick Wednesday (6/10) == Next week == * Continued Neon intrinsic testing

[Weekly] 21-25 JULY 2014

== This week == * TCWG Sprint (8/10) - Validation process greatly clarified including roadmap * Launchpad 1318831 - Invalid unpoisoning of stack redzones on ARM (2/10) - Finished validating and working thru git review isses with Launchpad == Next week == * Begin neon intrinsic testing * I

[Weekly] 07-11 JULY 2014

== This week == Provide ldp/stp peephole optimization for Aarch64 [TCWG-446] [0/10] - Halted development due to duplicate ARM development project by Bin Cheng Launchpad 1318831 - Invalid unpoisoning of stack redzones on ARM [3/10] - Verifying test results Launchpad 1267761 -

[Weekly] 30 JUNE -04 JULY 2014

== This week == Provide ldp/stp peephole optimization for Aarch64 [TCWG-446] [6/10] - Investigated options for improving ldp/stp pairing and developed patch - Testing underway Launchpad 1267761 - miscompilation of unsigned comparison on aarch64 [1/10] - Backported revision 206529

[Weekly] 09-13 JUNE 2014

== This week == Out sick Tuesday and Wednesday (4/10) Launchpad cleanup (6/10) Launchpad 944572 - Infinite loop printing warning: missing braces around initializer in g++ - fix released Bugs marked won't fix after investigation: Launchpad 683683 - run-init on omap3, omap4 in

[Weekly] 26-30 May 2014

== This week == - Memorial day holiday Monday (2/10) - Investigated launchpad 1295738 - [4.8 Regression] unable to find a register to spill in class 'LO_REGS' [CARD-300](2/10) - Will mark as unlikely to fix (reload error); works with LRA and/or with -fomit-frame-pointer - Investigated

[Weekly] 19-23 May 2014

== This week == - Completed GCC Launchpad bug dispositions [CARD-300][2/10] - Backported PR61202 - gcc generated invalid sqdmulh instruction [TCWG-485](2/10) - Triaged and investigated Launchpad bug 1295738- Unable to find a register to spill in class 'LO_REGS' [Card 300](3/10) - Triaged and

[Weekly] 12-16 MAY 2014

== This week == - Investigated infinite loop bug [TCWG-290][3/10] - Worked on GCC Launchpad bug dispositions (75% complete) [CARD-300][7/10] == Next week == - Complete spreadsheet for GCC Launchpad bug dispositions - Work on unresolved bugs == Future == No Plans. == Planned holidays == No

[Weekly] 05-09 MAY 2014

== This week == - Investigated infinite loop bug [TCWG-290][3/10] Misc (7/10) - Attended ARM Big Picture conference (May 5th - 7th) - Worked on GCC Launchpad bug dispositions as a prelude to bugzilla transition == Next week == - Resolve infinite loop bug - complete spreadsheet for GCC

[Weekly] 28 APR - 02 MAY 2014

== This week == - Investigated infinite loop bug [TCWG-290][6/10] - Narrowed bug down to data flow analysis of micro operation in variable tacking pass - Created bugzilla report - Still debugging to determine cause of infinite loop == Next week == - Attend ARM Big Picture conference,

[Weekly] 10-14 MAR 2014

for arm and aarch64. == Future == -- Michael Collison Linaro Toolchain Working Group michael.colli...@linaro.org ___ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-toolchain

[Weekly] 17-21 FEB 2013

backports completed this week on Qemu64 - New backports == Future == -- Michael Collison Linaro Toolchain Working Group michael.colli...@linaro.org ___ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman

[Weekly] 10-14 FEB 2014

. -- Michael Collison Linaro Toolchain Working Group michael.colli...@linaro.org ___ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-toolchain

[Weekly] 3-7 FEB 2014

for review once crypto instruction review is complete and approved - Continue backports from trunk - New backports == Future == -- Michael Collison Linaro Toolchain Working Group michael.colli...@linaro.org ___ linaro-toolchain mailing list linaro

[Weekly] 26-31 JAN 2014

== This week == - Successfully submitted crypto using git-review - Completed merge of ILP backports from trunk to Linaro 4.8 branch: 201164, 201165, 201166, 201167, 201168, 201170 and 201175 - Attended ARM architecture training on Friday == Next week == - Submit ILP backports for review

[Weekly] 20-24 JAN 2014

== This week == - Completed merge of crypto backports from trunk to Linaro 4.8 branch: - 64-bit backports: 205092, 205383, 205384, 206114, 206115, 206117, 206118, 206149 - 32-bit backports: 206518 AND 206519 - Built and tested 32 and 64-bit compilers with crypto changes == Next week == -

[Weekly] 13-17 Jan 2014

== This week == - Completed merge of crypto backports 206128, 206130, 206131, 206132 and 206149 from trunk to Linaro 4.8 branch - Out sick Friday == Next week == - Build and test crypto backports - Begin merging aarch64 crypto backport to Linaro 4.8 branch == Future ==

[Weekly] 06-10 JAN 2014

== This week == - Completed local backportS of 201164, 201165, 201166, 201167, 201168. == Next week == - Complete backport of 201175 - Submit merge requestS using git == Future == ___ linaro-toolchain mailing list

[Weekly] 09-13 DEC 2013

== This week == - Completed backport of 202259, 202407, 202020, 201261 and 201263 - Submitted merge requesSt for completed backports == Next week == - Begin work on other assigned backports == Future == Document missing features of cbuild for backports

[Weekly] 02-06 DEC 2013

== This week == - Completed backport of 197997 - Completed backport of 203774 - Worked on GCC 4.8 FSF Release Branch Merge and initiated merge request and build == Next week == - Work on GCC 4.7 Release branch Merge - Begin work on other assigned backports == Future == Document missing

[Weekly] 25-29 NOV 2013

== This week == - Completed backport of 202872 - Final checkin to upstream GCC SVN will be complete by Christophe Lyon == Next week == - Begin work on other assigned backports == Future == Document missing features of cbuild for backports ___

[Weekly] 18-22 Nov 2013

== This week == - This week was mostly spent on coming up to speed on the Linaro backport process - Backport 202872 - Merged changes from trunk to Linaro branch == Next week == - Complete backport of 202872 - Begin work on other assigned backports == Future == No concrete plans yet.