[clang] [RISCV][clang] Add Zvfbfmin C intrinsics support (PR #79618)

[Jim Lin via cfe-commits]

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@@ -1883,6 +1883,12 @@ let Log2LMUL = [-3, -2, -1, 0, 1, 2] in {
   def vfncvt_rtz_x_f_w : RVVConvToNarrowingSignedBuiltin<"vfncvt_rtz_x">;
   def vfncvt_rod_f_f_w : RVVConvBuiltin<"v", "vw", "xf", "vfncvt_rod_f">;
 }
+
+// Zvfbfmin - Vector convert BF16 to FP32
+let Log2LMUL = [-2, -1, 0, 1, 2],
+    OverloadedName = "vfwcvtbf16_f" in
+defm : RVVConvBuiltinSet<"vfwcvtbf16_f_f_v", "y", [["Fw", "Fwv"]]>;
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tclin914 wrote:

Could we just use `RVVConvBuiltin` here. 
Like `def vfwcvtbf16_f_f_v : RVVConvBuiltin<"Fw", "Fwv", "y", "vfwcvtbf16_f">;`

https://github.com/llvm/llvm-project/pull/79618