Scalar Replacement of Aggregates: How "Copy to Locals" Unlocks the Compiler Some performance fixes look almost suspiciously small in the diff. You change a couple of lines, the code still says the same thing to a human reader, and a hot loop suddenly has far less memory traffic. TigerBeetle&#x27;s PR #3201 is one of those fixes. It changed the AEGIS-128L state update in…