[llvm] [DAGCombiner] Fix check for extending loads (PR #112182)

[David Green via llvm-commits]

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@@ -0,0 +1,29 @@
+; RUN: llc -mtriple=aarch64-unknown-linux-gnu < %s | FileCheck %s
+
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davemgreen wrote:

And bonus points for using update_llc_test_checks.

https://github.com/llvm/llvm-project/pull/112182