== GCC ==

* Benchmarking the 4.6 backport of subreg forward-propagation confirmed that this is a net loss. On 4.7, microbenchmarks suggest a different outcome (due to register allocator enhancements), so I've created a 4.7 Bazaar branch including the patch and submitted it for benchmarking.

* Implemented a patch to allow memory operands with vec_set and vec_extract to avoid excessive vmov generation in the PR 51819 test case. Patch shows no regression on microbenchmarks; full testing and benchmarking still outstanding.

Mit freundlichen Gruessen / Best Regards

Ulrich Weigand

-- Dr. Ulrich Weigand | Phone: +49-7031/16-3727 STSM, GNU compiler and toolchain for Linux on System z and Cell/B.E. IBM Deutschland Research & Development GmbH Vorsitzender des Aufsichtsrats: Martin Jetter | Geschäftsführung: Dirk Wittkopp Sitz der Gesellschaft: Böblingen | Registergericht: Amtsgericht Stuttgart, HRB 243294