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39 | |
40 | #ifndef QV4BASELINEASSEMBLER_P_H |
41 | #define QV4BASELINEASSEMBLER_P_H |
42 | |
43 | // |
44 | // W A R N I N G |
45 | // ------------- |
46 | // |
47 | // This file is not part of the Qt API. It exists purely as an |
48 | // implementation detail. This header file may change from version to |
49 | // version without notice, or even be removed. |
50 | // |
51 | // We mean it. |
52 | // |
53 | |
54 | #include <private/qv4global_p.h> |
55 | #include <private/qv4function_p.h> |
56 | #include <QHash> |
57 | |
58 | #if QT_CONFIG(qml_jit) |
59 | |
60 | QT_BEGIN_NAMESPACE |
61 | |
62 | namespace QV4 { |
63 | namespace JIT { |
64 | |
65 | #define GENERATE_RUNTIME_CALL(function, destination) \ |
66 | callRuntime(reinterpret_cast<void *>(&Runtime::function::call), \ |
67 | destination) |
68 | #define GENERATE_TAIL_CALL(function) \ |
69 | tailCallRuntime(reinterpret_cast<void *>(&function)) |
70 | |
71 | class BaselineAssembler { |
72 | public: |
73 | BaselineAssembler(const Value* constantTable); |
74 | ~BaselineAssembler(); |
75 | |
76 | // codegen infrastructure |
77 | void generatePrologue(); |
78 | void generateEpilogue(); |
79 | void link(Function *function); |
80 | void addLabel(int offset); |
81 | |
82 | // loads/stores/moves |
83 | void loadConst(int constIndex); |
84 | void copyConst(int constIndex, int destReg); |
85 | void loadReg(int reg); |
86 | void moveReg(int sourceReg, int destReg); |
87 | void storeReg(int reg); |
88 | void loadLocal(int index, int level = 0); |
89 | void storeLocal(int index, int level = 0); |
90 | void loadString(int stringId); |
91 | void loadValue(ReturnedValue value); |
92 | void storeHeapObject(int reg); |
93 | void loadImport(int index); |
94 | |
95 | // numeric ops |
96 | void unot(); |
97 | void toNumber(); |
98 | void uminus(); |
99 | void ucompl(); |
100 | void inc(); |
101 | void dec(); |
102 | void add(int lhs); |
103 | void bitAnd(int lhs); |
104 | void bitOr(int lhs); |
105 | void bitXor(int lhs); |
106 | void ushr(int lhs); |
107 | void shr(int lhs); |
108 | void shl(int lhs); |
109 | void bitAndConst(int rhs); |
110 | void bitOrConst(int rhs); |
111 | void bitXorConst(int rhs); |
112 | void ushrConst(int rhs); |
113 | void shrConst(int rhs); |
114 | void shlConst(int rhs); |
115 | void mul(int lhs); |
116 | void div(int lhs); |
117 | void mod(int lhs); |
118 | void sub(int lhs); |
119 | |
120 | // comparissons |
121 | void cmpeqNull(); |
122 | void cmpneNull(); |
123 | void cmpeqInt(int lhs); |
124 | void cmpneInt(int lhs); |
125 | void cmpeq(int lhs); |
126 | void cmpne(int lhs); |
127 | void cmpgt(int lhs); |
128 | void cmpge(int lhs); |
129 | void cmplt(int lhs); |
130 | void cmple(int lhs); |
131 | void cmpStrictEqual(int lhs); |
132 | void cmpStrictNotEqual(int lhs); |
133 | |
134 | // jumps |
135 | Q_REQUIRED_RESULT int jump(int offset); |
136 | Q_REQUIRED_RESULT int jumpTrue(int offset); |
137 | Q_REQUIRED_RESULT int jumpFalse(int offset); |
138 | Q_REQUIRED_RESULT int jumpNoException(int offset); |
139 | Q_REQUIRED_RESULT int jumpNotUndefined(int offset); |
140 | |
141 | // stuff for runtime calls |
142 | void prepareCallWithArgCount(int argc); |
143 | void storeInstructionPointer(int instructionOffset); |
144 | void passAccumulatorAsArg(int arg); |
145 | void passFunctionAsArg(int arg); |
146 | void passEngineAsArg(int arg); |
147 | void passJSSlotAsArg(int reg, int arg); |
148 | void passCppFrameAsArg(int arg); |
149 | void passInt32AsArg(int value, int arg); |
150 | void passPointerAsArg(void *ptr, int arg); |
151 | void callRuntime(const void *funcPtr, CallResultDestination dest); |
152 | void saveAccumulatorInFrame(); |
153 | void loadAccumulatorFromFrame(); |
154 | void jsTailCall(int func, int thisObject, int argc, int argv); |
155 | |
156 | // exception/context stuff |
157 | void checkException(); |
158 | void gotoCatchException(); |
159 | void getException(); |
160 | void setException(); |
161 | Q_REQUIRED_RESULT int setUnwindHandler(int offset); |
162 | void clearUnwindHandler(); |
163 | void unwindDispatch(); |
164 | Q_REQUIRED_RESULT int unwindToLabel(int level, int offset); |
165 | void pushCatchContext(int index, int name); |
166 | void popContext(); |
167 | void deadTemporalZoneCheck(int offsetForSavedIP, int variableName); |
168 | |
169 | // other stuff |
170 | void ret(); |
171 | |
172 | protected: |
173 | void *d; |
174 | |
175 | private: |
176 | typedef unsigned(*CmpFunc)(const Value&,const Value&); |
177 | void cmp(int cond, CmpFunc function, int lhs); |
178 | }; |
179 | |
180 | } // namespace JIT |
181 | } // namespace QV4 |
182 | |
183 | QT_END_NAMESPACE |
184 | |
185 | #endif // QT_CONFIG(qml_jit) |
186 | |
187 | #endif // QV4BASELINEASSEMBLER_P_H |
188 | |