llvm-project

01fd39a7 - [CodeGen] Refactor rematerializer unit tests to reduce boilerplate (NFC) (#197575)

[CodeGen] Refactor rematerializer unit tests to reduce boilerplate (NFC) (#197575) Taking inspiration from other unit tests, this refactors the rematerializer's unit tests with the aim of reducing the amount of repetitive boilerplate code in each individual test, making the addition of new tests easier/faster in the future. Each unit test defines some input MIR to instantiate a rematerializer on; a user-provided callback is then invoked with a pre-initialized rematerializer wrapped in a helper object that factors out as much common verification logic as possible.