[llvm] [MISched] De-prioritize RegCritical when register pressure is critica… (PR #218493)

[via llvm-commits]

github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Windows-->
# :window: Windows x64 Test Results

* 139784 tests passed
* 3733 tests skipped
* 508 tests failed

Failed tests and their output was too large to report. Download the build's log file to see the details.

If these failures are unrelated to your changes (for example tests are broken or flaky at HEAD), please open an issue at https://github.com/llvm/llvm-project/issues and add the `infrastructure` label.

https://github.com/llvm/llvm-project/pull/218493