--- core/Common/3dParty/v8_89/v8/src/compiler/backend/instruction-codes.h.orig 2021-04-12 21:00:33 UTC
+++ core/Common/3dParty/v8_89/v8/src/compiler/backend/instruction-codes.h
@@ -276,7 +276,7 @@
 using ArchOpcodeField = base::BitField<ArchOpcode, 0, 9>;
 static_assert(ArchOpcodeField::is_valid(kLastArchOpcode),
               "All opcodes must fit in the 9-bit ArchOpcodeField.");
-using AddressingModeField = base::BitField<AddressingMode, 9, 5>;
+using AddressingModeField = base::BitField<AddressingMode, 9, 4>;
 using FlagsModeField = base::BitField<FlagsMode, 14, 3>;
 using FlagsConditionField = base::BitField<FlagsCondition, 17, 5>;
 using DeoptImmedArgsCountField = base::BitField<int, 22, 2>;