[wasm] New implementation of popcnt and ctz.

src/compiler/wasm-compiler.h

Index: src/compiler/wasm-compiler.h
diff --git a/src/compiler/wasm-compiler.h b/src/compiler/wasm-compiler.h
index bbcafa72960a786132ad01731ee49d7354790c57..962567545c3748b6401f457a5af5e1c11c4f00e6 100644
--- a/src/compiler/wasm-compiler.h
+++ b/src/compiler/wasm-compiler.h
@@ -186,6 +186,9 @@ class WasmGraphBuilder {
   Node* BuildI32Popcnt(Node* input);
   Node* BuildI64Ctz(Node* input);
   Node* BuildI64Popcnt(Node* input);
+  Node* BuildBitCountingCall(Node* input, ExternalReference ref,
+                             MachineRepresentation input_type);
+
   Node* BuildCFuncInstruction(ExternalReference ref, MachineType type,
                               Node* input0, Node* input1 = nullptr);
   Node* BuildF32Trunc(Node* input);