================
@@ -0,0 +1,159 @@
+// REQUIRES: aarch64-registered-target
+
+// DEFINE: %{optimize} = opt -passes=mem2reg,tailcallelim -S
----------------
banach-space wrote:

In terms of priorities:
1. Preserve the original `CHECK` lines (i.e. just copy them across)
2. Minimise the set of passes that are run.

So, if we can remove some passes without affecting the original `CHECK` lines, 
lets do it. In the past, we would actually _add_ passes to simplify the 
generated IR, but looks like SVE is already fairly optimised.

Thanks for working on this!

https://github.com/llvm/llvm-project/pull/230083
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