Cannot randomize LLVM IR using llc

[romits800]

Hello!
I am trying to randomize the LLVM IR representation of a program using llc but I get identical versions:

clang test.cpp  -emit-llvm -S -o test.ll
llc  test.ll -random-seed=444  -randomize-machine-registers -o test_444.s
llc  test.ll -random-seed=11   -randomize-machine-registers -o test_11.s

When running multicompiler using clang, everything works and the two variants test_444.s and test_11.s differ with
regards to the register allocation.

 clang test.cpp -frandom-seed=444 -mllvm -randomize-machine-registers -S -o test_444.s
 clang test.cpp -frandom-seed=11 -mllvm -randomize-machine-registers -S -o test_11.s

Is there any way to randomize the LLVM IR representation?
I am attaching the code test.cpp with a script run.sh that shows this behavior.
mcp.tar.gz