Investigate recent 32bit compiler performance regressions
In c5088e29 I tweaked the numbers for the x86/Linux build to get them to pass for the RC, but some of these look pretty bad.
Most of them shot up quite a bit. Some of them I don't think were very recent (modification date unspecified, etc.) A few others had updates as early as November, so something has clearly slipped on 32bit platforms here.
I spent a tiny amount of time investigating, but didn't get very far. I'm not holding the RC for these, but it's worth investigating when we get a chance.