Hi, On 2023-01-27 15:06:37 -0500, Tom Lane wrote: > There are a lot of places where we're implicitly relying on > cross-compilation-unit optimizations NOT happening, because the code isn't > adequately decorated with memory barriers and the like.
We have a fallback compiler barrier implementation doing that, but it shouldn't be used on any halfway reasonable compiler. Cross-compilation-unit calls don't provide a memory barrier - I assume you're thinking about a compiler barrier? I'm sure we have a few places that aren't that careful, but I would hope it's not a large number. Are you thinking of specific "patterns" we've repeated all over, or just a few cases you recall? Greetings, Andres Freund
