Optimize out write barriers for fields in ref-like structs #9512
Description
From dotnet/coreclr#15745 (comment) :
Hmm, I wonder if there are sufficient guarantees that by ref like types only live on the stack for the JIT to be able to eliminate GC write barriers when writing to fields of such types.
Yes, there are. It would be nice optimization to have.
cc @mikedn
category:cq
theme:barriers
skill-level:expert
cost:small