[llvm] [CodeGen] Port MachineUniformityAnalysis to new pass manager (PR #137578)

[Matt Arsenault via llvm-commits]

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@@ -1,4 +1,5 @@
 # RUN: llc -mtriple=amdgcn-- -mcpu=gfx900 -run-pass=print-machine-uniformity -o - %s 2>&1 | FileCheck %s
+# RUN: llc -mtriple=amdgcn-- -mcpu=gfx900 -passes='print<machine-uniformity>' -o - %s 2>&1 | FileCheck %s
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arsenm wrote:

use filetype=null? stdout is discarded 

https://github.com/llvm/llvm-project/pull/137578