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

[via cfe-commits]

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@@ -3864,3 +3864,20 @@ def int_aarch64_sve_famin_u : AdvSIMD_Pred2VectorArg_Intrinsic;
 // Neon absolute maximum and minimum
 def int_aarch64_neon_famax :  AdvSIMD_2VectorArg_Intrinsic;
 def int_aarch64_neon_famin :  AdvSIMD_2VectorArg_Intrinsic;
+
+//
+// FP8 intrinsics
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SpencerAbson wrote:

Would you mind moving the `SME2_FP8_CVT_X2_Single_Intrinsic` intrinics I've merged (and perhaps the fp8 `fscale` ones) down to this section? I'll follow this convention with my in-flight patches. 

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