[llvm] Add option to dump IR to files instead of stderr (PR #66412)

[Nuri Amari via llvm-commits]

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@@ -0,0 +1,56 @@
+; RUN: rm -rf %t/logs
+
+; Basic dump before and after a single module pass
+
+; RUN: opt %s -disable-output -passes='no-op-module' -ir-dump-directory %t/logs -print-after=no-op-module -print-before=no-op-module
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NuriAmari wrote:

Removed `find` and `sort` usage, check the actual numbers now.

https://github.com/llvm/llvm-project/pull/66412