[wasm] Fix bounds check for zero initial memory.

src/mips/assembler-mips.cc

Index: src/mips/assembler-mips.cc
diff --git a/src/mips/assembler-mips.cc b/src/mips/assembler-mips.cc
index f5b235d1f6f1f045fe19ea5ef7709cbfa22bbce8..1213eafb51ee8dc62fbf2327f9477a19062fbabf 100644
--- a/src/mips/assembler-mips.cc
+++ b/src/mips/assembler-mips.cc
@@ -204,6 +204,12 @@ uint32_t RelocInfo::wasm_memory_size_reference() {
   return reinterpret_cast<uint32_t>(Assembler::target_address_at(pc_, host_));
 }
 
+uint8_t RelocInfo::wasm_memtype_size_reference() {
+  DCHECK(IsWasmMemtypeSizeReference(rmode_));
+  return static_cast<byte>(
+      reinterpret_cast<uintptr_t>(Assembler::target_address_at(pc_, host_)));
+}
+
 void RelocInfo::unchecked_update_wasm_memory_reference(
     Address address, ICacheFlushMode flush_mode) {
   Assembler::set_target_address_at(isolate_, pc_, host_, address, flush_mode);