[llvm] AMDGPU: Fix assert when multi operands to update after folding imm (PR #148205)

[via llvm-commits]

================
@@ -0,0 +1,127 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
+# RUN: llc -mtriple=amdgcn-amd-hsa -mcpu=gfx1031 -run-pass=si-fold-operands -o - %s | FileCheck %s
+--- |
----------------
macurtis-amd wrote:

Without it, llc complained about `global`, but I wasn't sure trying to remove things. I'll see about pruning it down.

https://github.com/llvm/llvm-project/pull/148205