[llvm] AMDGPU/NewPM: Port SIFoldOperands to new pass manager (PR #105801)

[Matt Arsenault via llvm-commits]

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@@ -1,5 +1,6 @@
 # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
 # RUN: llc -mtriple=amdgcn -mcpu=gfx900 -mattr=+enable-flat-scratch -run-pass=si-fold-operands -verify-machineinstrs -o - %s | FileCheck -check-prefix=GCN %s
+# RUN: llc -mtriple=amdgcn -mcpu=gfx900 -mattr=+enable-flat-scratch -passes=si-fold-operands -verify-machineinstrs -o - %s | FileCheck -check-prefix=GCN %s
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arsenm wrote:

I don't want to double the number of run lines to test the pass itself. Just have a couple with the two forms? If you want to update all the tests, you can just use the new form 

https://github.com/llvm/llvm-project/pull/105801