Desugar bitwise negation into XOR and kill all UnaryOp stuff.

src/objects.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 4763 matching lines @@
   V(BUILTIN)                \
   V(REGEXP)
 
 #define IC_KIND_LIST(V) \
   V(LOAD_IC)            \
   V(KEYED_LOAD_IC)      \
   V(CALL_IC)            \
   V(KEYED_CALL_IC)      \
   V(STORE_IC)           \
   V(KEYED_STORE_IC)     \
-  V(UNARY_OP_IC)        \
   V(BINARY_OP_IC)       \
   V(COMPARE_IC)         \
   V(COMPARE_NIL_IC)     \
   V(TO_BOOLEAN_IC)
 
 #define CODE_KIND_LIST(V) \
   NON_IC_KIND_LIST(V)     \
   IC_KIND_LIST(V)
 
   enum Kind {
@@ skipping 98 matching lines @@
   inline Kind kind();
   inline InlineCacheState ic_state();  // Only valid for IC stubs.
   inline ExtraICState extra_ic_state();  // Only valid for IC stubs.
 
   inline ExtraICState extended_extra_ic_state();  // Only valid for
                                                   // non-call IC stubs.
   static bool needs_extended_extra_ic_state(Kind kind) {
     // TODO(danno): This is a bit of a hack right now since there are still
     // clients of this API that pass "extra" values in for argc. These clients
     // should be retrofitted to used ExtendedExtraICState.
-    return kind == COMPARE_NIL_IC || kind == TO_BOOLEAN_IC ||
-           kind == UNARY_OP_IC;
+    return kind == COMPARE_NIL_IC || kind == TO_BOOLEAN_IC;
   }
 
   inline StubType type();  // Only valid for monomorphic IC stubs.
   inline int arguments_count();  // Only valid for call IC stubs.
 
   // Testers for IC stub kinds.
   inline bool is_inline_cache_stub();
   inline bool is_debug_break();
   inline bool is_load_stub() { return kind() == LOAD_IC; }
   inline bool is_keyed_load_stub() { return kind() == KEYED_LOAD_IC; }
   inline bool is_store_stub() { return kind() == STORE_IC; }
   inline bool is_keyed_store_stub() { return kind() == KEYED_STORE_IC; }
   inline bool is_call_stub() { return kind() == CALL_IC; }
   inline bool is_keyed_call_stub() { return kind() == KEYED_CALL_IC; }
-  inline bool is_unary_op_stub() { return kind() == UNARY_OP_IC; }
   inline bool is_binary_op_stub() { return kind() == BINARY_OP_IC; }
   inline bool is_compare_ic_stub() { return kind() == COMPARE_IC; }
   inline bool is_compare_nil_ic_stub() { return kind() == COMPARE_NIL_IC; }
   inline bool is_to_boolean_ic_stub() { return kind() == TO_BOOLEAN_IC; }
 
   // [major_key]: For kind STUB or BINARY_OP_IC, the major key.
   inline int major_key();
   inline void set_major_key(int value);
 
   // For kind STUB or ICs, tells whether or not a code object was generated by
@@ skipping 53 matching lines @@
   inline void set_back_edge_table_offset(unsigned offset);
 
   inline bool back_edges_patched_for_osr();
   inline void set_back_edges_patched_for_osr(bool value);
 
   // [check type]: For kind CALL_IC, tells how to check if the
   // receiver is valid for the given call.
   inline CheckType check_type();
   inline void set_check_type(CheckType value);
 
-  // [type-recording unary op type]: For kind UNARY_OP_IC.
-  inline byte unary_op_type();
-  inline void set_unary_op_type(byte value);
-
   // [to_boolean_foo]: For kind TO_BOOLEAN_IC tells what state the stub is in.
   inline byte to_boolean_state();
 
   // [has_function_cache]: For kind STUB tells whether there is a function
   // cache is passed to the stub.
   inline bool has_function_cache();
   inline void set_has_function_cache(bool flag);
 
 
   // [marked_for_deoptimization]: For kind OPTIMIZED_FUNCTION tells whether
@@ skipping 218 matching lines @@
   class KindField: public BitField<Kind, 7, 4> {};
   class IsPregeneratedField: public BitField<bool, 11, 1> {};
   class ExtraICStateField: public BitField<ExtraICState, 12, 5> {};
   class ExtendedExtraICStateField: public BitField<ExtraICState, 12,
       PlatformSmiTagging::kSmiValueSize - 12 + 1> {};  // NOLINT
   STATIC_ASSERT(ExtraICStateField::kShift == ExtendedExtraICStateField::kShift);
 
   // KindSpecificFlags1 layout (STUB and OPTIMIZED_FUNCTION)
   static const int kStackSlotsFirstBit = 0;
   static const int kStackSlotsBitCount = 24;
-  static const int kUnaryOpTypeFirstBit =
-      kStackSlotsFirstBit + kStackSlotsBitCount;
-  static const int kUnaryOpTypeBitCount = 3;
   static const int kHasFunctionCacheFirstBit =
       kStackSlotsFirstBit + kStackSlotsBitCount;
   static const int kHasFunctionCacheBitCount = 1;
   static const int kMarkedForDeoptimizationFirstBit =
       kStackSlotsFirstBit + kStackSlotsBitCount + 1;
   static const int kMarkedForDeoptimizationBitCount = 1;
 
   STATIC_ASSERT(kStackSlotsFirstBit + kStackSlotsBitCount <= 32);
-  STATIC_ASSERT(kUnaryOpTypeFirstBit + kUnaryOpTypeBitCount <= 32);
   STATIC_ASSERT(kHasFunctionCacheFirstBit + kHasFunctionCacheBitCount <= 32);
   STATIC_ASSERT(kMarkedForDeoptimizationFirstBit +
                 kMarkedForDeoptimizationBitCount <= 32);
 
   class StackSlotsField: public BitField<int,
       kStackSlotsFirstBit, kStackSlotsBitCount> {};  // NOLINT
-  class UnaryOpTypeField: public BitField<int,
-      kUnaryOpTypeFirstBit, kUnaryOpTypeBitCount> {};  // NOLINT
   class HasFunctionCacheField: public BitField<bool,
       kHasFunctionCacheFirstBit, kHasFunctionCacheBitCount> {};  // NOLINT
   class MarkedForDeoptimizationField: public BitField<bool,
       kMarkedForDeoptimizationFirstBit,
       kMarkedForDeoptimizationBitCount> {};  // NOLINT
 
   // KindSpecificFlags2 layout (ALL)
   static const int kIsCrankshaftedBit = 0;
   class IsCrankshaftedField: public BitField<bool,
       kIsCrankshaftedBit, 1> {};  // NOLINT
@@ skipping 4917 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_