== Last Week ==
* Got a new ARM-specific unwind test case working, so its integration
with libunwind stands a marginally better chance of working (once it's
finally finished).
* Sent a ping to binutils mailing list about a patch to improve readelf
that I had sent in at the beginning of December. Still no response.
* Holidays and Vacation
== This Week ==
* Try to finish libunwind integration, as my time with Linaro is nearly
over. Update documentation on wiki to reflect current status.
* Ping ltrace list about a new release. It seemed so close, then the
list went abruptly silent.
--
Zach Welch
CodeSourcery
zwelch(a)codesourcery.com
(650) 331-3385 x743
== Linaro GCC ==
* Continued looking at element/structure load/store intrinsics
improvements. Some good initial results: it looks like the plan of
using "extra-wide" vectors for returning struct results works fine (at
least to a first approximation). Sent off WIP patch (internally to CS
only, so far).
Incidentally this looks like it'll be a good stepping-stone for the
"RTL half" (vs. the "tree half") of the representation of
element/structure loads/stores (e.g. vld2/vst2) also. The return type
(for loads) and argument type (for stores) of the RTL patterns for such
instructions is changed from the current wide-integer representation
(OImode, etc.) to a suitable wide vector instead (e.g. V16QImode). This
change might help lead to a more meaningful mapping from an equivalent
tree form -- though we haven't quite got the whole picture yet, as the
middle-end won't want to know about the ARM-specific and
non-standard-named patterns for the element/structure loads/stores.
(One might imagine a new standard-named RTL expander taking care of that
though.)
== Vacation ==
* Vacation Dec 20th-Jan 4th.
== GCC issues ==
* PR44557, Thumb-1 ICE, looked at the ARM specific secondary reload
parts, as well as some general reload internals context. Concluded that
concerns on Thumb-2 about my submitted patch should be unneeded, as the
reload_in/out patterns should never be used for Thumb-2. Also looked a
bit on how we should upgrade ARM to use TARGET_SECONDARY_RELOAD.
* PR45416, ARM code regression. Started working on this again, cleaning
up patch to submit.
* Had some email discussion with Revital Eres on Swing Modulo Scheduling
(SMS) for ARM issues, mainly on how the doloop_end pattern should be
done on ARM.
* Submitted and committed an obvious small patch for a VFP testsuite case.
== This week ==
* Continue on GCC issues.
* Flying to Dallas on Sunday, prepare for trip.
