[ACTIVITY] Week 04

2019-01-27 Thread Yvan Roux
o Still part time at university.

o LLVM
  * Buildbots babysitting.
  * Submitted machine outliner RFC upstream
- Addressing comments.
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[ACTIVITY] Week 04

2018-01-29 Thread Yvan Roux
== Progress ==
o Linaro GCC/Validation
   * 2018.01 snapshots deployed
   * 2018.02 release candidates will be done when CVE mitigation will
be contributed upstream.

o LLVM
   * "unpredictable" handling (Bugzilla 33011, ...): on-going
   * Investigated OOM issue further... without much success.
   * Python scripts reviews

o Misc
   * Various meetings and discussions.
   * Preparing Connect presentations
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[ACTIVITY] Week 04

2017-01-30 Thread Yvan Roux
o Teaching activity (4/10)

== Progress ==
o Linaro GCC/Validation (5/10)
* GCC 4.9 2017.01:
   - prepared source and binaries for RC1
   - release notes to be finalized for publication
* GCC 5.4 2017.01
   - Rebuilt binaries for the release
   - Release notes almost completed
* Reviews
* Back to tree reassociation
o Misc (1/10)
   * Various meetings and discussions.

== Plan ==
o GCC 4.9 release
o Backports review
o Tree reassociation
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[ACTIVITY] Week 04

2016-02-01 Thread Yvan Roux
o Teaching activity (3/10)

== Progress ==
o Infra/Validation (1/10)
   * A couple of patches for release script.

o GCC dev. (2/10)
   * Remote testing sanitizing: still digging.

o Misc (4/10)
   * Various meetings (usual ones and internal ones)
   * Backports reviews

== Plan ==
o Continue on GCC testsuite and opened cards.
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[ACTIVITY] Week 04

2014-01-26 Thread Zhenqiang Chen
== Issues ==

 * None

== Progress ==

* Investigate to duplicate shared compares to get more conditional compares.
* Investigate to enable shrink-wrap for TARGET_APCS_FRAME. Still some
ICE fails in regression tests.
* Help on cbuilv2 eglibc multilib build issues.

== Plans ==

* Tuning ccmp performance
* Enable shrink-wrap for TARGET_APCS_FRAME.

== Planed leaves ==

* Jan. 31 - Feb. 10.

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[Activity] Week 04

2013-01-27 Thread Zhenqiang Chen
Summary:
* Investigate Automotive benchmark performance on different branch cost.

Details:
1. Automotive benchmark performance analysis for different branch cost
on Pardaboard ES.
  * Design small test cases to simulate bitmnp01 to compare the
performance between ITTT and conditional branch. Test results show
- If branch prediction does not work (put the codes in a
function), ITTT is always better than conditional branch.
- If branch prediction works (inline the codes t in the loop
body), for most cases, conditional branch is better than ITTT.
  * Code alignment has big impact for tblook01. By default IT block
has better performance. When adding __attribute__((aligned (16))) for
function t_run_test, performance of conditional branch is better than
IT block.

2. Prepare Linaro toolchain binary release.
  * Update Linaro crosstool-ng local patches due to the fix of
lp:1067766 in source package.
  * Spawn all builds and smoke tests.

Plan:
* Investigate SPEC2k performance for different branch costs.
* Work with Bero for 2013.01 toolchain binary release .

Planed leaves:
* Feb. 9 - 15: Chinese Spring Festival.

Best Regards!
-Zhenqiang

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