[clang] [llvm] [RISCV] Support version 0.9 of Zvabd (PR #218576)

[Bohan Lei via llvm-commits]

================
@@ -2057,18 +2058,24 @@ let UnMaskedPolicyScheme = HasPassthruOperand in {
 
   // zvabd
   let RequiredFeatures = ["zvabd"] in {
-    defm vabs : RVVOutBuiltinSet<"vabs", "csil", [["v", "Uv", "Uvv"]]>;
-    defm vabd : RVVOutBuiltinSet<"vabd", "cs", [["vv", "Uv", "Uvvv"]]>;
-    defm vabdu : RVVOutBuiltinSet<"vabdu", "cs", [["vv", "Uv", "UvUvUv"]]>;
+    defm vabs_v : RVVPseudoUnaryBuiltin<"vabd", "csil", "Uv", "Uvv">;
----------------
garthlei wrote:

The name was chosen to be consistent with existing vector pseudoinstructions such as `vneg`.

https://github.com/llvm/llvm-project/pull/218576