* Linaro GCC

Investigated the latest test failure for the neon-extend patch. The test for GCC Bugzilla 43137 is failing again. It turns out to be because my switching sign_extend to use a DImode output, rather than two SImode subreg outputs has exposed a bug in the lower-subreg pass. I've spent most of the week trying to figure what can be done about this and discussing the problem with Richard Sandiford upstream.

Richard Earnshaw approved my neon-negate patch. That patch depends on the neon-immediates patch which is not approved yet, so I'll have to wait to commit it.

Continued looking at NEON-v-core register allocation. Not much progress this week though.

* Other

Created a patch to make the GCC RTL dumps easier to diff. Posted it upstream and discussed it on the list.

Vacation on Friday.

* Next week

Vacation Monday and Tuesday