[clang] [llvm] [AArch64] Implement FP8 SVE Intrinsics for narrowing conversions (PR #118124)

[Momchil Velikov via llvm-commits]

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+// REQUIRES: aarch64-registered-target
+
+// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sve -target-feature +bf16 -verify -emit-llvm %s
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momchil-velikov wrote:

This feature is needed by `svcreate2` and `svundef_bf16`. What problems does it create as to need fixing?

https://github.com/llvm/llvm-project/pull/118124