Worked on the ARM 16 -> 64-bit multiply-and-accumulate problem. Bernd kindly provided a prototype patch to help. I've tried to understand what needs to be done, but I didn't have enough time to get to the bottom of it. So far, I think I know why the existing code doesn't work, and I think I have a way forward. It does appear that the real problem ought to be solved in the tree optimizers, though.

Committed the FSF GCC 4.5.3 merge to the Linaro 4.5 branch. Testing did not show any trouble.

Matthias requested an additional 4.5 merge to pick up a new bug fix, so I've done the merge, and submitted the merge request for testing.

Committed Maxim's compound conditionals optimization patch - a merge from Linaro GCC 4.5.

There was some confusion caused by the lp:gcc-linaro/4.6 branch history accidentally getting re-written. After some discussion on #bzr I managed to figure out what happened, posted a warning to linaro-toolchain mailing list, and changed the branch configuration to prevent it happening again.

Committed Mark Shinwell's BRANCH_COST patch to Linaro GCC 4.6 - another merge from GCC 4.5.

Merged from FSF GCC 4.6 to Linaro 4.6 and submitted the patch for testing.

Richard Earnshaw approved my recent Thumb2 constants patch, but only if I modify it slightly. I've begun work on the changes, but I still need to test them. I won't be able to commit them until the ADDW/SUBW patch has been approved.

Ramana has reviewed my EABI half-precision function names patch, and discovered that the return types are wrong. I have no idea how this happened - the changes are deliberate so they must have been based on something, but I no longer have the same documents I had when I did the work, and it clearly doesn't match my current ones. In any case, the changes make no practical difference as function return values are always as wide a register anyway.

* Other

Public holiday on Monday.

* Next week

I will be attending UDS in Budapest from 8th - 14th May. I shall continue to read my email, but will not be attending any calls.

---- Upstream patched requiring review: * NEON scheduling patch http://gcc.gnu.org/ml/gcc-patches/2011-02/msg01431.html * ARM Thumb2 addw/subw support. http://www.mail-archive.com/gcc-patches@gcc.gnu.org/msg03783.html