llvm-project

b9d85b12 - [CodeGen] Use DenseMap::operator[] (NFC) (#108489)

[CodeGen] Use DenseMap::operator[] (NFC) (#108489) Once we modernize CopyInfo with default member initializations, Copies.insert({Unit, ...}) becomes equivalent to: Copies.try_emplace(Unit) which we can simplify further down to Copies[Unit].