Thursday 1st March 2012

This month's meetings

WorkingGroups/ToolChain/Meetings
<< <  2012 / 1 >  >>
Mon Tue Wed Thu Fri Sat Sun
            1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31          

Attendees

  • Ken Werner
  • Michael Hope
  • Peter Maydell
  • Ramana Radhakrishnan
  • Ulrich Weigand

Agenda

  • Stand up call

Minutes

Ulrich:

  • Fixing a couple of SPU regressions that affect other platforms
    • init_array, fini_arry
    • Vectoriser ICE when creating misaligned memory accesses in outer loop
  • Checked in remaining vectoriser patches to our 4.7
  • Everything that is in 4.6 is also in 4.7...
  • Plus fwprop subreg patch (part of reducing unneeded vmovs)
    • Is a clear win on that baseline
  • New work
    • Saturation instructions - usat/ssat
    • Approved, backported to 4.7, 4.6
  • End of loop missed optimisation
    • Changed to unsigned works fine but causes downstream optimisations to fail (missed optimisations)
    • Will investigate
    • Need to benchmark to see no regressions as others may have fallen out

Ken:

  • Working on meta-linaro layer, cross-gcc and SDK recipes
  • Need to add patches to build in the OE way
  • Mainly changes to configurie
  • Can build Qt and sato images!
  • Checked 2012.02 binary release with external meta layer
  • Failure with qemu/kernel due to image not being aligned to a SD card image
  • Not seen on trunk as they use IDE

Peter:

  • Moving forward on the CP15 tidy up and refactoring
  • Slow as it's nasty and there's some old decisions
  • Looking at BE8 support especially in user space

Ramana:

  • Hot cold partitioning
  • Writing tests for a NEON intrinsic ABI fault
  • Recovering from a broken machine which I didn't mention
  • Some upstream patch review

Michael:

  • makecontext() family is accepted
  • Spinning KVM blueprints
  • Spinning OpenEmbedded

  • GDB on Android discussion
  • Talk with Android guys re: toolchain vs system vs useful benchmarks
  • Ran the 4.6.3 RC through and checked
  • A 'now' benchmark

WorkingGroups/ToolChain/Meetings/Archive/2012-03-01 (last modified 2013-08-30 11:50:29)