X87: [compiler] Add relocatable pointer constants for wasm memory references.

src/compiler/x87/instruction-selector-x87.cc

Index: src/compiler/x87/instruction-selector-x87.cc
diff --git a/src/compiler/x87/instruction-selector-x87.cc b/src/compiler/x87/instruction-selector-x87.cc
index e4d085ee9c0b674b1379600fe7b2119318b70488..a1537ebdd82556d3a810f531f53e8d21f2634092 100644
--- a/src/compiler/x87/instruction-selector-x87.cc
+++ b/src/compiler/x87/instruction-selector-x87.cc
@@ -60,6 +60,8 @@ class X87OperandGenerator final : public OperandGenerator {
       case IrOpcode::kInt32Constant:
       case IrOpcode::kNumberConstant:
       case IrOpcode::kExternalConstant:
+      case IrOpcode::kRelocatableInt32Constant:
+      case IrOpcode::kRelocatableInt64Constant:
         return true;
       case IrOpcode::kHeapConstant: {
         // Constants in new space cannot be used as immediates in V8 because