Hi, this is just an heads-up: PR libstdc++/23667 is about a time-out, on slower machines of tr1/6_containers/unordered/hashtable/23465.cc.
However, If I use together with the library an up to date compiler (either mainline or 4_0-branch), I'm able to appreciate the horrible slow-down of the generated code (1-2 orders of magnitude!) also on x86-linux. I believe a recent correct-ness fix introduced an unintented pessimization. In order to avoid seeing a spurious correctness regression in the logs (the testcase is in the correctness library testsuite, not in the performance one), I simplified the testcase, thus made it much faster, but now I see that the underlying issue is generic and very serious: in, say, 3-4 days, I will revert the change in case the slow-down will be still present. Thanks, Paolo.