[clang] [llvm] [Clang][RISCV] Add Zvabd intrinsics (PR #180929)

[Luke Lau via cfe-commits]

================
@@ -1907,6 +1907,18 @@ let TargetPrefix = "riscv" in {
   def int_riscv_vsm3me   : RISCVBinaryAAXUnMasked;
 } // TargetPrefix = "riscv"
 
+//===----------------------------------------------------------------------===//
+// Zvabd - Vector Absolute Difference
+//===----------------------------------------------------------------------===//
+let TargetPrefix = "riscv" in {
+
+  defm vabs      : RISCVUnaryAA;
+  defm vabd      : RISCVBinaryAAX;
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lukel97 wrote:

Does RISCVBinaryAAX allow scalar vs1? Do we need a RISCVBinaryAA? I'm not sure if there's existing binary intrinsics with only .vv operands.

https://github.com/llvm/llvm-project/pull/180929