[llvm] [VP][RISCV] Add vp.cttz.elts intrinsic and its RISC-V codegen (PR #90502)

[Min-Yih Hsu via llvm-commits]

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@@ -1026,6 +1026,13 @@ void VectorLegalizer::Expand(SDNode *Node, SmallVectorImpl<SDValue> &Results) {
       return;
     }
     break;
+  case ISD::VP_CTTZ_ELTS:
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mshockwave wrote:

Done. 

https://github.com/llvm/llvm-project/pull/90502