[Weekly] 10-14 AUGUST 2015

[Michael Collison]

== This week ==


* TCWG-140 - Transform end of loop conditions to min_expr (4/10)
- Wrote initial test case as requested by maintainers
- Need to determine how to not run test case on targets with no
MIN_EXPR/MAX_EXPR

* TCWG-833 - Exploit Wide Add operations when appropriate (4/10)
- Fixed internal error by using unspec for vector sign/zero-extend
- Fixed multiple issues with test cases
- Investigating why gcc.dg/vect/slp-reduc-3.c with lto is regressing
for aarch32 and aarc64
- Investigating two additional regression failures on aarch64

* TCWG-834 - Use non-unit stride loads by preference when applicable (1/10)
- Spoke with Richard Biener at GNU cauldron.
- He indicated this was a problem with a interaction problem with
vectorizer not attempting multiple strategies
- He indicated that he planned to fix this for GCC 6 and not to
attempt a fix
- My plan is to write a test case that fails until the issue is
addressed in GCC 6

* Misc (1/10)
- Conference calls

== Next week ==

- Resolve testsuite regressions for TCWG-833
- Create bugzilla reports for TCWG-833 and TCWG-834
- Write testcase for TCWG-834 and submit upstream
- Investigate TCWG-832 as time permits