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

src/compiler/x87/code-generator-x87.cc

Index: src/compiler/x87/code-generator-x87.cc
diff --git a/src/compiler/x87/code-generator-x87.cc b/src/compiler/x87/code-generator-x87.cc
index da7fdb481be90c60b97d29716cf96a428593b1ff..2b9795aae01daeca3c6aaf634ea08d726b93d149 100644
--- a/src/compiler/x87/code-generator-x87.cc
+++ b/src/compiler/x87/code-generator-x87.cc
@@ -59,6 +59,11 @@ class X87OperandConverter : public InstructionOperandConverter {
 
   Immediate ToImmediate(InstructionOperand* operand) {
     Constant constant = ToConstant(operand);
+    if (constant.type() == Constant::kInt32 &&
+        constant.rmode() == RelocInfo::WASM_MEMORY_REFERENCE) {
+      return Immediate(reinterpret_cast<Address>(constant.ToInt32()),
+                       constant.rmode());
+    }
     switch (constant.type()) {
       case Constant::kInt32:
         return Immediate(constant.ToInt32());