Add new relocation type WASM_MEMORY_SIZE_REFERENCE, use relocatable pointers to update wasm memory …

src/compiler/arm64/code-generator-arm64.cc

Index: src/compiler/arm64/code-generator-arm64.cc
diff --git a/src/compiler/arm64/code-generator-arm64.cc b/src/compiler/arm64/code-generator-arm64.cc
index 2303c73eb09bce4cd5c7d53e3fba0bf96c95fd09..bff62b4da0368684aac3426daabd34f0b113f0c5 100644
--- a/src/compiler/arm64/code-generator-arm64.cc
+++ b/src/compiler/arm64/code-generator-arm64.cc
@@ -201,11 +201,16 @@ class Arm64OperandConverter final : public InstructionOperandConverter {
     Constant constant = ToConstant(operand);
     switch (constant.type()) {
       case Constant::kInt32:
-        return Operand(constant.ToInt32());
+        if (constant.rmode() == RelocInfo::WASM_MEMORY_SIZE_REFERENCE) {
+          return Operand(constant.ToInt32(), constant.rmode());
+        } else {
+          return Operand(constant.ToInt32());
+        }
       case Constant::kInt64:
         if (constant.rmode() == RelocInfo::WASM_MEMORY_REFERENCE) {
           return Operand(constant.ToInt64(), constant.rmode());
         } else {
+          DCHECK(constant.rmode() != RelocInfo::WASM_MEMORY_SIZE_REFERENCE);
           return Operand(constant.ToInt64());
         }
       case Constant::kFloat32: