[llvm] [llvm][ARM][AArch64] Add attributes to synthetic functions. (PR #83153)

[Tomas Matheson via llvm-commits]

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@@ -0,0 +1,31 @@
+; RUN: opt < %s -passes=asan -S | FileCheck %s
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tmatheson-arm wrote:

Please could you add a comment saying what these tests are testing.

https://github.com/llvm/llvm-project/pull/83153