http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51017
--- Comment #4 from Alexander Peslyak <solar-gcc at openwall dot com> 2012-01-03 04:45:43 UTC --- (In reply to comment #3) > It might be interesting to get numbers for the trunk. There have been some > register allocator fixes which might have improved this. I've just tested the gcc-4.7-20111231 snapshot vs. 4.6.2 release. There's no improvement as it relates to this issue: I am getting the same poor performance (a lot worse than for 4.5). This is for generating x86-64 code with SSE2 intrinsics, benchmarking the resulting code on a Core 2'ish CPU (I used Xeon E5420 this time).
