[clang] [llvm] [AArch64] Implement FP8 SVE intrinsics for widening conversions (PR #118123)

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@@ -0,0 +1,78 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+; RUN: llc -mattr=+bf16,+sve2,+fp8 < %s | FileCheck %s
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SpencerAbson wrote:

nit: I'm not sure we need `+bf16` in these.

https://github.com/llvm/llvm-project/pull/118123