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1 // Copyright 2016 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef V8_DEOPTIMIZE_REASON_H_
6 #define V8_DEOPTIMIZE_REASON_H_
7 
8 #include "src/globals.h"
9 
10 namespace v8 {
11 namespace internal {
12 
13 #define DEOPTIMIZE_REASON_LIST(V)                                              \
14   V(ArrayBufferWasNeutered, "array buffer was neutered")                       \
15   V(CowArrayElementsChanged, "copy-on-write array's elements changed")         \
16   V(CouldNotGrowElements, "failed to grow elements store")                     \
17   V(DeoptimizeNow, "%_DeoptimizeNow")                                          \
18   V(DivisionByZero, "division by zero")                                        \
19   V(Hole, "hole")                                                              \
20   V(InstanceMigrationFailed, "instance migration failed")                      \
21   V(InsufficientTypeFeedbackForCall, "Insufficient type feedback for call")    \
22   V(InsufficientTypeFeedbackForConstruct,                                      \
23     "Insufficient type feedback for construct")                                \
24   V(InsufficientTypeFeedbackForForIn, "Insufficient type feedback for for-in") \
25   V(InsufficientTypeFeedbackForBinaryOperation,                                \
26     "Insufficient type feedback for binary operation")                         \
27   V(InsufficientTypeFeedbackForCompareOperation,                               \
28     "Insufficient type feedback for compare operation")                        \
29   V(InsufficientTypeFeedbackForGenericNamedAccess,                             \
30     "Insufficient type feedback for generic named access")                     \
31   V(InsufficientTypeFeedbackForGenericKeyedAccess,                             \
32     "Insufficient type feedback for generic keyed access")                     \
33   V(InsufficientTypeFeedbackForUnaryOperation,                                 \
34     "Insufficient type feedback for unary operation")                          \
35   V(LostPrecision, "lost precision")                                           \
36   V(LostPrecisionOrNaN, "lost precision or NaN")                               \
37   V(MinusZero, "minus zero")                                                   \
38   V(NaN, "NaN")                                                                \
39   V(NoCache, "no cache")                                                       \
40   V(NotAHeapNumber, "not a heap number")                                       \
41   V(NotAJavaScriptObject, "not a JavaScript object")                           \
42   V(NotANumberOrOddball, "not a Number or Oddball")                            \
43   V(NotASmi, "not a Smi")                                                      \
44   V(NotAString, "not a String")                                                \
45   V(NotASymbol, "not a Symbol")                                                \
46   V(OutOfBounds, "out of bounds")                                              \
47   V(Overflow, "overflow")                                                      \
48   V(ReceiverNotAGlobalProxy, "receiver was not a global proxy")                \
49   V(Smi, "Smi")                                                                \
50   V(Unknown, "(unknown)")                                                      \
51   V(ValueMismatch, "value mismatch")                                           \
52   V(WrongCallTarget, "wrong call target")                                      \
53   V(WrongEnumIndices, "wrong enum indices")                                    \
54   V(WrongInstanceType, "wrong instance type")                                  \
55   V(WrongMap, "wrong map")                                                     \
56   V(WrongName, "wrong name")                                                   \
57   V(WrongValue, "wrong value")                                                 \
58   V(NoInitialElement, "no initial element")
59 
60 enum class DeoptimizeReason : uint8_t {
61 #define DEOPTIMIZE_REASON(Name, message) k##Name,
62   DEOPTIMIZE_REASON_LIST(DEOPTIMIZE_REASON)
63 #undef DEOPTIMIZE_REASON
64 };
65 
66 std::ostream& operator<<(std::ostream&, DeoptimizeReason);
67 
68 size_t hash_value(DeoptimizeReason reason);
69 
70 char const* DeoptimizeReasonToString(DeoptimizeReason reason);
71 
72 }  // namespace internal
73 }  // namespace v8
74 
75 #endif  // V8_DEOPTIMIZE_REASON_H_
76