[llvm] [MemCpyOpt] Fix the invalid code modification for GEP (PR #68479)

[Nikita Popov via llvm-commits]

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@@ -0,0 +1,39 @@
+; RUN: opt -S -passes=memcpyopt < %s -verify-memoryssa | FileCheck %s
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nikic wrote:

Use update_test_checks.py.

https://github.com/llvm/llvm-project/pull/68479