[clang] [llvm] [AArch64][clang][llvm] Add ACLE Armv9.7 lookup table intrinsics (PR #187046)

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+// REQUIRES: aarch64-registered-target
+
+// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sme -target-feature +sme2 -target-feature +bf16 -verify -emit-llvm -o - %s
+
+#include <arm_sme.h>
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CarolineConcatto wrote:

Why we need this test?

https://github.com/llvm/llvm-project/pull/187046