[PATCH] D64188: [NewPM] Port the MIR Printing pass to new pass manager.

[Francis Visoiu Mistrih via Phabricator via llvm-commits]

thegameg added a comment.

The `MIRPrinter` is used to print MIR when used with `-stop-before` / `-stop-after` / `-run-pass` flags in `llc` (see https://llvm.org/docs/MIRLangRef.html#mir-testing-guide).

In the case of `-stop-*`, LLVMTargetMachine.cpp:addPassesToEmitFile sets it up.
In the case of `-run-pass`, llc.cpp:compileModule does (`if (!RunPassNames->empty()) { ...`).

As for tests, basically all `.mir ` tests that use the flags above use it.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D64188/new/

https://reviews.llvm.org/D64188