Added parameterization

Author: badumbatish

llvm/lib/Target/WebAssembly/WebAssemblyInstrSIMD.td

@@ -1711,25 +1711,29 @@ defm RELAXED_DOT :
             "i16x8.relaxed_dot_i8x16_i7x16_s\t$dst, $lhs, $rhs",
             "i16x8.relaxed_dot_i8x16_i7x16_s", 0x112>;
 
-def : Pat<
-  (v8i16 (add
-    (wasm_shuffle
-      (v8i16 (extmul_low_s v16i8:$lhs, v16i8:$rhs)),
-      (v8i16 (extmul_high_s v16i8:$lhs, v16i8:$rhs)),
-      (i32 0), (i32 1), (i32 4), (i32 5),
-      (i32 8), (i32 9), (i32 12), (i32 13),
-      (i32 16), (i32 17), (i32 20), (i32 21),
-      (i32 24), (i32 25), (i32 28), (i32 29)),
-    (wasm_shuffle
-      (v8i16 (extmul_low_s v16i8:$lhs, v16i8:$rhs)),
-      (v8i16 (extmul_high_s v16i8:$lhs, v16i8:$rhs)),
-      (i32 2), (i32 3), (i32 6), (i32 7),
-      (i32 10), (i32 11), (i32 14), (i32 15),
-      (i32 18), (i32 19), (i32 22), (i32 23),
-      (i32 26), (i32 27), (i32 30), (i32 31)))
-  ),
-  (v8i16 (RELAXED_DOT v16i8:$lhs, v16i8:$rhs))
->;
+class RelaxedDotPat_ShuffleExtMul<ValueType FromVecTy, ValueType ToVecTy> :
+  Pat<
+    (ToVecTy (add
+      (wasm_shuffle
+        (ToVecTy (extmul_low_s FromVecTy:$lhs, FromVecTy:$rhs)),
+        (ToVecTy (extmul_high_s FromVecTy:$lhs, FromVecTy:$rhs)),
+        (i32 0), (i32 1), (i32 4), (i32 5),
+        (i32 8), (i32 9), (i32 12), (i32 13),
+        (i32 16), (i32 17), (i32 20), (i32 21),
+        (i32 24), (i32 25), (i32 28), (i32 29)),
+      (wasm_shuffle
+        (ToVecTy (extmul_low_s FromVecTy:$lhs, FromVecTy:$rhs)),
+        (ToVecTy (extmul_high_s FromVecTy:$lhs, FromVecTy:$rhs)),
+        (i32 2), (i32 3), (i32 6), (i32 7),
+        (i32 10), (i32 11), (i32 14), (i32 15),
+        (i32 18), (i32 19), (i32 22), (i32 23),
+        (i32 26), (i32 27), (i32 30), (i32 31)))
+    ),
+    (ToVecTy (RELAXED_DOT FromVecTy:$lhs, FromVecTy:$rhs))
+  >;
+
+def : RelaxedDotPat_ShuffleExtMul<v16i8, v8i16>;
+
 
 defm RELAXED_DOT_ADD :
   RELAXED_I<(outs V128:$dst), (ins V128:$lhs, V128:$rhs, V128:$acc),