[llvm] [hwasan] Add intrinsics for fixed shadow on Aarch64 (PR #89319)

[Vitaly Buka via llvm-commits]

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@@ -0,0 +1,144 @@
+; RUN: llc --hwasan-mapping-offset=4398046511104 < %s | FileCheck %s
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vitalybuka wrote:

lets precommit this one and rebase?

https://github.com/llvm/llvm-project/pull/89319