[clang] [llvm] [X86][APX] Return CopyMI when added in foldMemoryOperandImpl (PR #191368)

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+; REQUIRES: x86-registered-target
+; RUN: %clang -O1 -mapx-features=ndd --target=x86_64-pc-windows-gnu -S %s -mllvm -verify-machineinstrs -o /dev/null
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Andarwinux wrote:

But using llc to run this IR won't trigger a crash, I don't know why.

https://github.com/llvm/llvm-project/pull/191368