[compiler] Add relocatable pointer constants for wasm memory references.

src/compiler/instruction-selector.cc

Index: src/compiler/instruction-selector.cc
diff --git a/src/compiler/instruction-selector.cc b/src/compiler/instruction-selector.cc
index 814c454d443066636489f574fdd968065da48a98..183a55106cc855fb160411d269ead82819740ca1 100644
--- a/src/compiler/instruction-selector.cc
+++ b/src/compiler/instruction-selector.cc
@@ -874,6 +874,8 @@ void InstructionSelector::VisitNode(Node* node) {
     case IrOpcode::kInt32Constant:
     case IrOpcode::kInt64Constant:
     case IrOpcode::kExternalConstant:
+    case IrOpcode::kRelocatableInt32Constant:
+    case IrOpcode::kRelocatableInt64Constant:
       return VisitConstant(node);
     case IrOpcode::kFloat32Constant:
       return MarkAsFloat32(node), VisitConstant(node);