[NFC] Refactor each of ArrayNewSeg and ArrayInit into subclasses for Data/Elem (#5692)

ArrayNewSeg => ArrayNewSegData, ArrayNewSegElem
ArrayInit => ArrayInitData, ArrayInitElem

Basically we remove the opcode and use the class type to differentiate them.

This adds some code but it makes the representation simpler and more compact in
memory, and it will help with #5690

1 files changed, 23 insertions, 22 deletions

diff --git a/src/passes/Print.cpp b/src/passes/Print.cpp
index 650a17203..76fd53759 100644
--- a/src/passes/Print.cpp
+++ b/src/passes/Print.cpp
@@ -2265,21 +2265,20 @@ struct PrintExpressionContents
     o << ' ';
     TypeNamePrinter(o, wasm).print(curr->type.getHeapType());
   }
-  void visitArrayNewSeg(ArrayNewSeg* curr) {
+  void visitArrayNewData(ArrayNewData* curr) {
     if (printUnreachableReplacement(curr)) {
       return;
     }
-    printMedium(o, "array.new_");
-    switch (curr->op) {
-      case NewData:
-        printMedium(o, "data");
-        break;
-      case NewElem:
-        printMedium(o, "elem");
-        break;
-      default:
-        WASM_UNREACHABLE("unexpected op");
+    printMedium(o, "array.new_data");
+    o << ' ';
+    TypeNamePrinter(o, wasm).print(curr->type.getHeapType());
+    o << " $" << curr->segment;
+  }
+  void visitArrayNewElem(ArrayNewElem* curr) {
+    if (printUnreachableReplacement(curr)) {
+      return;
     }
+    printMedium(o, "array.new_elem");
     o << ' ';
     TypeNamePrinter(o, wasm).print(curr->type.getHeapType());
     o << " $" << curr->segment;
@@ -2333,20 +2332,19 @@ struct PrintExpressionContents
     printMedium(o, "array.fill ");
     TypeNamePrinter(o, wasm).print(curr->ref->type.getHeapType());
   }
-  void visitArrayInit(ArrayInit* curr) {
+  void visitArrayInitData(ArrayInitData* curr) {
     if (printUnreachableOrNullReplacement(curr->ref)) {
       return;
     }
-    switch (curr->op) {
-      case InitData:
-        printMedium(o, "array.init_data ");
-        break;
-      case InitElem:
-        printMedium(o, "array.init_elem ");
-        break;
-      default:
-        WASM_UNREACHABLE("unexpected op");
+    printMedium(o, "array.init_data ");
+    TypeNamePrinter(o, wasm).print(curr->ref->type.getHeapType());
+    o << " $" << curr->segment;
+  }
+  void visitArrayInitElem(ArrayInitElem* curr) {
+    if (printUnreachableOrNullReplacement(curr->ref)) {
+      return;
     }
+    printMedium(o, "array.init_elem ");
     TypeNamePrinter(o, wasm).print(curr->ref->type.getHeapType());
     o << " $" << curr->segment;
   }
@@ -2915,7 +2913,10 @@ struct PrintSExpression : public UnifiedExpressionVisitor<PrintSExpression> {
   void visitArrayNew(ArrayNew* curr) {
     maybePrintUnreachableReplacement(curr, curr->type);
   }
-  void visitArrayNewSeg(ArrayNewSeg* curr) {
+  void visitArrayNewData(ArrayNewData* curr) {
+    maybePrintUnreachableReplacement(curr, curr->type);
+  }
+  void visitArrayNewElem(ArrayNewElem* curr) {
     maybePrintUnreachableReplacement(curr, curr->type);
   }
   void visitArrayNewFixed(ArrayNewFixed* curr) {