[llvm] [RISCV] Add LLVM IR intrinsicis vrgatherei16/vslideup/vslidedown support for Zvfbfmin (PR #146312)

[Luke Lau via llvm-commits]

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@@ -1449,3 +1449,292 @@ entry:
 
   ret <vscale x 8 x double> %a
 }
+
+declare <vscale x 1 x bfloat> @llvm.riscv.vrgatherei16.vv.nxv1bf16(
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lukel97 wrote:

You don't need to declare intrinsics anymore so this can be left out

https://github.com/llvm/llvm-project/pull/146312