c9d35a31b268eef26eab40693e7fc4de823a89cc
[WebKit-https.git] / Source / JavaScriptCore / dfg / DFGOperations.h
1 /*
2  * Copyright (C) 2011, 2013 Apple Inc. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
24  */
25
26 #ifndef DFGOperations_h
27 #define DFGOperations_h
28
29 #if ENABLE(DFG_JIT)
30
31 #include "DFGJITCompiler.h"
32 #include "PutKind.h"
33
34 namespace JSC {
35
36 namespace DFG {
37
38 extern "C" {
39
40 #if CALLING_CONVENTION_IS_STDCALL
41 #define DFG_OPERATION CDECL
42 #else
43 #define DFG_OPERATION
44 #endif
45
46 // These typedefs provide typechecking when generating calls out to helper routines;
47 // this helps prevent calling a helper routine with the wrong arguments!
48 /*
49     Key:
50     V: void
51     J: JSValue
52     P: pointer (void*)
53     C: JSCell*
54     A: JSArray*
55     S: size_t
56     Z: int32_t
57     D: double
58     I: StringImpl*
59 */
60 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_E)(ExecState*);
61 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EA)(ExecState*, JSArray*);
62 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EAZ)(ExecState*, JSArray*, int32_t);
63 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EC)(ExecState*, JSCell*);
64 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_ECC)(ExecState*, JSCell*, JSCell*);
65 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_ECI)(ExecState*, JSCell*, StringImpl*);
66 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_ECJ)(ExecState*, JSCell*, EncodedJSValue);
67 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EDA)(ExecState*, double, JSArray*);
68 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EI)(ExecState*, StringImpl*);
69 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EJ)(ExecState*, EncodedJSValue);
70 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EJA)(ExecState*, EncodedJSValue, JSArray*);
71 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EJI)(ExecState*, EncodedJSValue, StringImpl*);
72 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EJJ)(ExecState*, EncodedJSValue, EncodedJSValue);
73 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EJssZ)(ExecState*, JSString*, int32_t);
74 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EJP)(ExecState*, EncodedJSValue, void*);
75 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EP)(ExecState*, void*);
76 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EPP)(ExecState*, void*, void*);
77 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EPS)(ExecState*, void*, size_t);
78 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_ESS)(ExecState*, size_t, size_t);
79 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EZ)(ExecState*, int32_t);
80 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EZIcfZ)(ExecState*, int32_t, InlineCallFrame*, int32_t);
81 typedef EncodedJSValue DFG_OPERATION (*J_DFGOperation_EZZ)(ExecState*, int32_t, int32_t);
82 typedef JSCell* DFG_OPERATION (*C_DFGOperation_E)(ExecState*);
83 typedef JSCell* DFG_OPERATION (*C_DFGOperation_EZ)(ExecState*, int32_t);
84 typedef JSCell* DFG_OPERATION (*C_DFGOperation_EC)(ExecState*, JSCell*);
85 typedef JSCell* DFG_OPERATION (*C_DFGOperation_ECC)(ExecState*, JSCell*, JSCell*);
86 typedef JSCell* DFG_OPERATION (*C_DFGOperation_EIcf)(ExecState*, InlineCallFrame*);
87 typedef JSCell* DFG_OPERATION (*C_DFGOperation_EJ)(ExecState*, EncodedJSValue);
88 typedef JSCell* DFG_OPERATION (*C_DFGOperation_EJssSt)(ExecState*, JSString*, Structure*);
89 typedef JSCell* DFG_OPERATION (*C_DFGOperation_EJssJss)(ExecState*, JSString*, JSString*);
90 typedef JSCell* DFG_OPERATION (*C_DFGOperation_EJssJssJss)(ExecState*, JSString*, JSString*, JSString*);
91 typedef JSCell* DFG_OPERATION (*C_DFGOperation_EOZ)(ExecState*, JSObject*, int32_t);
92 typedef JSCell* DFG_OPERATION (*C_DFGOperation_ESt)(ExecState*, Structure*);
93 typedef JSCell* DFG_OPERATION (*C_DFGOperation_EZ)(ExecState*, int32_t);
94 typedef double DFG_OPERATION (*D_DFGOperation_DD)(double, double);
95 typedef double DFG_OPERATION (*D_DFGOperation_ZZ)(int32_t, int32_t);
96 typedef double DFG_OPERATION (*D_DFGOperation_EJ)(ExecState*, EncodedJSValue);
97 typedef int32_t DFG_OPERATION (*Z_DFGOperation_D)(double);
98 typedef size_t DFG_OPERATION (*S_DFGOperation_ECC)(ExecState*, JSCell*, JSCell*);
99 typedef size_t DFG_OPERATION (*S_DFGOperation_EJ)(ExecState*, EncodedJSValue);
100 typedef size_t DFG_OPERATION (*S_DFGOperation_EJJ)(ExecState*, EncodedJSValue, EncodedJSValue);
101 typedef size_t DFG_OPERATION (*S_DFGOperation_J)(EncodedJSValue);
102 typedef void DFG_OPERATION (*V_DFGOperation_EOZD)(ExecState*, JSObject*, int32_t, double);
103 typedef void DFG_OPERATION (*V_DFGOperation_EOZJ)(ExecState*, JSObject*, int32_t, EncodedJSValue);
104 typedef void DFG_OPERATION (*V_DFGOperation_EC)(ExecState*, JSCell*);
105 typedef void DFG_OPERATION (*V_DFGOperation_ECIcf)(ExecState*, JSCell*, InlineCallFrame*);
106 typedef void DFG_OPERATION (*V_DFGOperation_ECCIcf)(ExecState*, JSCell*, JSCell*, InlineCallFrame*);
107 typedef void DFG_OPERATION (*V_DFGOperation_ECJJ)(ExecState*, JSCell*, EncodedJSValue, EncodedJSValue);
108 typedef void DFG_OPERATION (*V_DFGOperation_ECZ)(ExecState*, JSCell*, int32_t);
109 typedef void DFG_OPERATION (*V_DFGOperation_ECC)(ExecState*, JSCell*, JSCell*);
110 typedef void DFG_OPERATION (*V_DFGOperation_EJCI)(ExecState*, EncodedJSValue, JSCell*, StringImpl*);
111 typedef void DFG_OPERATION (*V_DFGOperation_EJJJ)(ExecState*, EncodedJSValue, EncodedJSValue, EncodedJSValue);
112 typedef void DFG_OPERATION (*V_DFGOperation_EJPP)(ExecState*, EncodedJSValue, void*, void*);
113 typedef void DFG_OPERATION (*V_DFGOperation_EPZJ)(ExecState*, void*, int32_t, EncodedJSValue);
114 typedef void DFG_OPERATION (*V_DFGOperation_W)(WatchpointSet*);
115 typedef char* DFG_OPERATION (*P_DFGOperation_E)(ExecState*);
116 typedef char* DFG_OPERATION (*P_DFGOperation_EC)(ExecState*, JSCell*);
117 typedef char* DFG_OPERATION (*P_DFGOperation_EJS)(ExecState*, EncodedJSValue, size_t);
118 typedef char* DFG_OPERATION (*P_DFGOperation_EO)(ExecState*, JSObject*);
119 typedef char* DFG_OPERATION (*P_DFGOperation_EOS)(ExecState*, JSObject*, size_t);
120 typedef char* DFG_OPERATION (*P_DFGOperation_EOZ)(ExecState*, JSObject*, int32_t);
121 typedef char* DFG_OPERATION (*P_DFGOperation_EPS)(ExecState*, void*, size_t);
122 typedef char* DFG_OPERATION (*P_DFGOperation_ES)(ExecState*, size_t);
123 typedef char* DFG_OPERATION (*P_DFGOperation_ESJss)(ExecState*, size_t, JSString*);
124 typedef char* DFG_OPERATION (*P_DFGOperation_ESt)(ExecState*, Structure*);
125 typedef char* DFG_OPERATION (*P_DFGOperation_EStJ)(ExecState*, Structure*, EncodedJSValue);
126 typedef char* DFG_OPERATION (*P_DFGOperation_EStPS)(ExecState*, Structure*, void*, size_t);
127 typedef char* DFG_OPERATION (*P_DFGOperation_EStSS)(ExecState*, Structure*, size_t, size_t);
128 typedef char* DFG_OPERATION (*P_DFGOperation_EStZ)(ExecState*, Structure*, int32_t);
129 typedef StringImpl* DFG_OPERATION (*I_DFGOperation_EJss)(ExecState*, JSString*);
130 typedef JSString* DFG_OPERATION (*Jss_DFGOperation_EZ)(ExecState*, int32_t);
131 JSCell* DFG_OPERATION operationStringFromCharCode(ExecState*, int32_t)  WTF_INTERNAL; 
132
133 // These routines are provide callbacks out to C++ implementations of operations too complex to JIT.
134 JSCell* DFG_OPERATION operationNewObject(ExecState*, Structure*) WTF_INTERNAL;
135 JSCell* DFG_OPERATION operationCreateThis(ExecState*, JSObject* constructor, int32_t inlineCapacity) WTF_INTERNAL;
136 EncodedJSValue DFG_OPERATION operationToThis(ExecState*, EncodedJSValue encodedOp1) WTF_INTERNAL;
137 EncodedJSValue DFG_OPERATION operationValueAdd(ExecState*, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2) WTF_INTERNAL;
138 EncodedJSValue DFG_OPERATION operationValueAddNotNumber(ExecState*, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2) WTF_INTERNAL;
139 EncodedJSValue DFG_OPERATION operationGetByVal(ExecState*, EncodedJSValue encodedBase, EncodedJSValue encodedProperty) WTF_INTERNAL;
140 EncodedJSValue DFG_OPERATION operationGetByValCell(ExecState*, JSCell*, EncodedJSValue encodedProperty) WTF_INTERNAL;
141 EncodedJSValue DFG_OPERATION operationGetByValArrayInt(ExecState*, JSArray*, int32_t) WTF_INTERNAL;
142 EncodedJSValue DFG_OPERATION operationGetByValStringInt(ExecState*, JSString*, int32_t) WTF_INTERNAL;
143 EncodedJSValue DFG_OPERATION operationGetById(ExecState*, EncodedJSValue, StringImpl*) WTF_INTERNAL;
144 EncodedJSValue DFG_OPERATION operationGetByIdBuildList(ExecState*, EncodedJSValue, StringImpl*) WTF_INTERNAL;
145 EncodedJSValue DFG_OPERATION operationGetByIdOptimize(ExecState*, EncodedJSValue, StringImpl*) WTF_INTERNAL;
146 EncodedJSValue DFG_OPERATION operationInOptimize(ExecState*, JSCell*, StringImpl*);
147 EncodedJSValue DFG_OPERATION operationIn(ExecState*, JSCell*, StringImpl*);
148 EncodedJSValue DFG_OPERATION operationGenericIn(ExecState*, JSCell*, EncodedJSValue);
149 EncodedJSValue DFG_OPERATION operationCallCustomGetter(ExecState*, JSCell*, PropertySlot::GetValueFunc, StringImpl*) WTF_INTERNAL;
150 EncodedJSValue DFG_OPERATION operationCallGetter(ExecState*, JSCell*, JSCell*) WTF_INTERNAL;
151 EncodedJSValue DFG_OPERATION operationToPrimitive(ExecState*, EncodedJSValue) WTF_INTERNAL;
152 char* DFG_OPERATION operationNewArray(ExecState*, Structure*, void*, size_t) WTF_INTERNAL;
153 char* DFG_OPERATION operationNewArrayBuffer(ExecState*, Structure*, size_t, size_t) WTF_INTERNAL;
154 char* DFG_OPERATION operationNewEmptyArray(ExecState*, Structure*) WTF_INTERNAL;
155 char* DFG_OPERATION operationNewArrayWithSize(ExecState*, Structure*, int32_t) WTF_INTERNAL;
156 char* DFG_OPERATION operationNewInt8ArrayWithSize(ExecState*, Structure*, int32_t) WTF_INTERNAL;
157 char* DFG_OPERATION operationNewInt8ArrayWithOneArgument(ExecState*, Structure*, EncodedJSValue) WTF_INTERNAL;
158 char* DFG_OPERATION operationNewInt16ArrayWithSize(ExecState*, Structure*, int32_t) WTF_INTERNAL;
159 char* DFG_OPERATION operationNewInt16ArrayWithOneArgument(ExecState*, Structure*, EncodedJSValue) WTF_INTERNAL;
160 char* DFG_OPERATION operationNewInt32ArrayWithSize(ExecState*, Structure*, int32_t) WTF_INTERNAL;
161 char* DFG_OPERATION operationNewInt32ArrayWithOneArgument(ExecState*, Structure*, EncodedJSValue) WTF_INTERNAL;
162 char* DFG_OPERATION operationNewUint8ArrayWithSize(ExecState*, Structure*, int32_t) WTF_INTERNAL;
163 char* DFG_OPERATION operationNewUint8ArrayWithOneArgument(ExecState*, Structure*, EncodedJSValue) WTF_INTERNAL;
164 char* DFG_OPERATION operationNewUint8ClampedArrayWithSize(ExecState*, Structure*, int32_t) WTF_INTERNAL;
165 char* DFG_OPERATION operationNewUint8ClampedArrayWithOneArgument(ExecState*, Structure*, EncodedJSValue) WTF_INTERNAL;
166 char* DFG_OPERATION operationNewUint16ArrayWithSize(ExecState*, Structure*, int32_t) WTF_INTERNAL;
167 char* DFG_OPERATION operationNewUint16ArrayWithOneArgument(ExecState*, Structure*, EncodedJSValue) WTF_INTERNAL;
168 char* DFG_OPERATION operationNewUint32ArrayWithSize(ExecState*, Structure*, int32_t) WTF_INTERNAL;
169 char* DFG_OPERATION operationNewUint32ArrayWithOneArgument(ExecState*, Structure*, EncodedJSValue) WTF_INTERNAL;
170 char* DFG_OPERATION operationNewFloat32ArrayWithSize(ExecState*, Structure*, int32_t) WTF_INTERNAL;
171 char* DFG_OPERATION operationNewFloat32ArrayWithOneArgument(ExecState*, Structure*, EncodedJSValue) WTF_INTERNAL;
172 char* DFG_OPERATION operationNewFloat64ArrayWithSize(ExecState*, Structure*, int32_t) WTF_INTERNAL;
173 char* DFG_OPERATION operationNewFloat64ArrayWithOneArgument(ExecState*, Structure*, EncodedJSValue) WTF_INTERNAL;
174 EncodedJSValue DFG_OPERATION operationNewRegexp(ExecState*, void*) WTF_INTERNAL;
175 void DFG_OPERATION operationPutByValStrict(ExecState*, EncodedJSValue encodedBase, EncodedJSValue encodedProperty, EncodedJSValue encodedValue) WTF_INTERNAL;
176 void DFG_OPERATION operationPutByValNonStrict(ExecState*, EncodedJSValue encodedBase, EncodedJSValue encodedProperty, EncodedJSValue encodedValue) WTF_INTERNAL;
177 void DFG_OPERATION operationPutByValCellStrict(ExecState*, JSCell*, EncodedJSValue encodedProperty, EncodedJSValue encodedValue) WTF_INTERNAL;
178 void DFG_OPERATION operationPutByValCellNonStrict(ExecState*, JSCell*, EncodedJSValue encodedProperty, EncodedJSValue encodedValue) WTF_INTERNAL;
179 void DFG_OPERATION operationPutByValBeyondArrayBoundsStrict(ExecState*, JSObject*, int32_t index, EncodedJSValue encodedValue) WTF_INTERNAL;
180 void DFG_OPERATION operationPutByValBeyondArrayBoundsNonStrict(ExecState*, JSObject*, int32_t index, EncodedJSValue encodedValue) WTF_INTERNAL;
181 void DFG_OPERATION operationPutDoubleByValBeyondArrayBoundsStrict(ExecState*, JSObject*, int32_t index, double value) WTF_INTERNAL;
182 void DFG_OPERATION operationPutDoubleByValBeyondArrayBoundsNonStrict(ExecState*, JSObject*, int32_t index, double value) WTF_INTERNAL;
183 EncodedJSValue DFG_OPERATION operationArrayPush(ExecState*, EncodedJSValue encodedValue, JSArray*) WTF_INTERNAL;
184 EncodedJSValue DFG_OPERATION operationArrayPushDouble(ExecState*, double value, JSArray*) WTF_INTERNAL;
185 EncodedJSValue DFG_OPERATION operationArrayPop(ExecState*, JSArray*) WTF_INTERNAL;
186 EncodedJSValue DFG_OPERATION operationArrayPopAndRecoverLength(ExecState*, JSArray*) WTF_INTERNAL;
187 EncodedJSValue DFG_OPERATION operationRegExpExec(ExecState*, JSCell*, JSCell*) WTF_INTERNAL;
188 void DFG_OPERATION operationPutByIdStrict(ExecState*, EncodedJSValue encodedValue, JSCell* base, StringImpl*) WTF_INTERNAL;
189 void DFG_OPERATION operationPutByIdNonStrict(ExecState*, EncodedJSValue encodedValue, JSCell* base, StringImpl*) WTF_INTERNAL;
190 void DFG_OPERATION operationPutByIdDirectStrict(ExecState*, EncodedJSValue encodedValue, JSCell* base, StringImpl*) WTF_INTERNAL;
191 void DFG_OPERATION operationPutByIdDirectNonStrict(ExecState*, EncodedJSValue encodedValue, JSCell* base, StringImpl*) WTF_INTERNAL;
192 void DFG_OPERATION operationPutByIdStrictOptimize(ExecState*, EncodedJSValue encodedValue, JSCell* base, StringImpl*) WTF_INTERNAL;
193 void DFG_OPERATION operationPutByIdNonStrictOptimize(ExecState*, EncodedJSValue encodedValue, JSCell* base, StringImpl*) WTF_INTERNAL;
194 void DFG_OPERATION operationPutByIdDirectStrictOptimize(ExecState*, EncodedJSValue encodedValue, JSCell* base, StringImpl*) WTF_INTERNAL;
195 void DFG_OPERATION operationPutByIdDirectNonStrictOptimize(ExecState*, EncodedJSValue encodedValue, JSCell* base, StringImpl*) WTF_INTERNAL;
196 void DFG_OPERATION operationPutByIdStrictBuildList(ExecState*, EncodedJSValue encodedValue, JSCell* base, StringImpl*) WTF_INTERNAL;
197 void DFG_OPERATION operationPutByIdNonStrictBuildList(ExecState*, EncodedJSValue encodedValue, JSCell* base, StringImpl*) WTF_INTERNAL;
198 void DFG_OPERATION operationPutByIdDirectStrictBuildList(ExecState*, EncodedJSValue encodedValue, JSCell* base, StringImpl*) WTF_INTERNAL;
199 void DFG_OPERATION operationPutByIdDirectNonStrictBuildList(ExecState*, EncodedJSValue encodedValue, JSCell* base, StringImpl*) WTF_INTERNAL;
200 // These comparisons return a boolean within a size_t such that the value is zero extended to fill the register.
201 size_t DFG_OPERATION operationRegExpTest(ExecState*, JSCell*, JSCell*) WTF_INTERNAL;
202 size_t DFG_OPERATION operationCompareLess(ExecState*, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2) WTF_INTERNAL;
203 size_t DFG_OPERATION operationCompareLessEq(ExecState*, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2) WTF_INTERNAL;
204 size_t DFG_OPERATION operationCompareGreater(ExecState*, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2) WTF_INTERNAL;
205 size_t DFG_OPERATION operationCompareGreaterEq(ExecState*, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2) WTF_INTERNAL;
206 size_t DFG_OPERATION operationCompareEq(ExecState*, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2) WTF_INTERNAL;
207 #if USE(JSVALUE64)
208 EncodedJSValue DFG_OPERATION operationCompareStringEq(ExecState*, JSCell* left, JSCell* right) WTF_INTERNAL;
209 #else
210 size_t DFG_OPERATION operationCompareStringEq(ExecState*, JSCell* left, JSCell* right) WTF_INTERNAL;
211 #endif
212 size_t DFG_OPERATION operationCompareStrictEqCell(ExecState*, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2) WTF_INTERNAL;
213 size_t DFG_OPERATION operationCompareStrictEq(ExecState*, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2) WTF_INTERNAL;
214 char* DFG_OPERATION operationVirtualCall(ExecState*) WTF_INTERNAL;
215 char* DFG_OPERATION operationLinkCall(ExecState*) WTF_INTERNAL;
216 char* DFG_OPERATION operationLinkClosureCall(ExecState*) WTF_INTERNAL;
217 char* DFG_OPERATION operationVirtualConstruct(ExecState*) WTF_INTERNAL;
218 char* DFG_OPERATION operationLinkConstruct(ExecState*) WTF_INTERNAL;
219 JSCell* DFG_OPERATION operationCreateActivation(ExecState*) WTF_INTERNAL;
220 JSCell* DFG_OPERATION operationCreateArguments(ExecState*) WTF_INTERNAL;
221 JSCell* DFG_OPERATION operationCreateInlinedArguments(ExecState*, InlineCallFrame*) WTF_INTERNAL;
222 void DFG_OPERATION operationTearOffArguments(ExecState*, JSCell*, JSCell*) WTF_INTERNAL;
223 void DFG_OPERATION operationTearOffInlinedArguments(ExecState*, JSCell*, JSCell*, InlineCallFrame*) WTF_INTERNAL;
224 EncodedJSValue DFG_OPERATION operationGetArgumentsLength(ExecState*, int32_t) WTF_INTERNAL;
225 EncodedJSValue DFG_OPERATION operationGetInlinedArgumentByVal(ExecState*, int32_t, InlineCallFrame*, int32_t) WTF_INTERNAL;
226 EncodedJSValue DFG_OPERATION operationGetArgumentByVal(ExecState*, int32_t, int32_t) WTF_INTERNAL;
227 JSCell* DFG_OPERATION operationNewFunctionNoCheck(ExecState*, JSCell*) WTF_INTERNAL;
228 EncodedJSValue DFG_OPERATION operationNewFunction(ExecState*, JSCell*) WTF_INTERNAL;
229 JSCell* DFG_OPERATION operationNewFunctionExpression(ExecState*, JSCell*) WTF_INTERNAL;
230 double DFG_OPERATION operationFModOnInts(int32_t, int32_t) WTF_INTERNAL;
231 size_t DFG_OPERATION operationIsObject(ExecState*, EncodedJSValue) WTF_INTERNAL;
232 size_t DFG_OPERATION operationIsFunction(EncodedJSValue) WTF_INTERNAL;
233 JSCell* DFG_OPERATION operationTypeOf(ExecState*, JSCell*) WTF_INTERNAL;
234 void DFG_OPERATION operationReallocateStorageAndFinishPut(ExecState*, JSObject*, Structure*, PropertyOffset, EncodedJSValue) WTF_INTERNAL;
235 char* DFG_OPERATION operationAllocatePropertyStorageWithInitialCapacity(ExecState*) WTF_INTERNAL;
236 char* DFG_OPERATION operationAllocatePropertyStorage(ExecState*, size_t newSize) WTF_INTERNAL;
237 char* DFG_OPERATION operationReallocateButterflyToHavePropertyStorageWithInitialCapacity(ExecState*, JSObject*) WTF_INTERNAL;
238 char* DFG_OPERATION operationReallocateButterflyToGrowPropertyStorage(ExecState*, JSObject*, size_t newSize) WTF_INTERNAL;
239 char* DFG_OPERATION operationEnsureInt32(ExecState*, JSCell*);
240 char* DFG_OPERATION operationEnsureDouble(ExecState*, JSCell*);
241 char* DFG_OPERATION operationEnsureContiguous(ExecState*, JSCell*);
242 char* DFG_OPERATION operationRageEnsureContiguous(ExecState*, JSCell*);
243 char* DFG_OPERATION operationEnsureArrayStorage(ExecState*, JSCell*);
244 StringImpl* DFG_OPERATION operationResolveRope(ExecState*, JSString*);
245 JSString* DFG_OPERATION operationSingleCharacterString(ExecState*, int32_t);
246
247 JSCell* DFG_OPERATION operationNewStringObject(ExecState*, JSString*, Structure*);
248 JSCell* DFG_OPERATION operationToStringOnCell(ExecState*, JSCell*);
249 JSCell* DFG_OPERATION operationToString(ExecState*, EncodedJSValue);
250 JSCell* DFG_OPERATION operationMakeRope2(ExecState*, JSString*, JSString*);
251 JSCell* DFG_OPERATION operationMakeRope3(ExecState*, JSString*, JSString*, JSString*);
252 char* DFG_OPERATION operationFindSwitchImmTargetForDouble(ExecState*, EncodedJSValue, size_t tableIndex);
253 char* DFG_OPERATION operationSwitchString(ExecState*, size_t tableIndex, JSString*);
254
255 // This method is used to lookup an exception hander, keyed by faultLocation, which is
256 // the return location from one of the calls out to one of the helper operations above.
257
258 // According to C++ rules, a type used for the return signature of function with C linkage (i.e.
259 // 'extern "C"') needs to be POD; hence putting any constructors into it could cause either compiler
260 // warnings, or worse, a change in the ABI used to return these types.
261 struct DFGHandler {
262     union Union {
263         struct Struct {
264             ExecState* exec;
265             void* handler;
266         } s;
267         uint64_t encoded;
268     } u;
269 };
270
271 inline DFGHandler createDFGHandler(ExecState* exec, void* handler)
272 {
273     DFGHandler result;
274     result.u.s.exec = exec;
275     result.u.s.handler = handler;
276     return result;
277 }
278
279 #if CPU(X86_64)
280 typedef DFGHandler DFGHandlerEncoded;
281 inline DFGHandlerEncoded dfgHandlerEncoded(ExecState* exec, void* handler)
282 {
283     return createDFGHandler(exec, handler);
284 }
285 #else
286 typedef uint64_t DFGHandlerEncoded;
287 inline DFGHandlerEncoded dfgHandlerEncoded(ExecState* exec, void* handler)
288 {
289     COMPILE_ASSERT(sizeof(DFGHandler::Union) == sizeof(uint64_t), DFGHandler_Union_is_64bit);
290     return createDFGHandler(exec, handler).u.encoded;
291 }
292 #endif
293 DFGHandlerEncoded DFG_OPERATION lookupExceptionHandler(ExecState*, uint32_t) WTF_INTERNAL;
294 DFGHandlerEncoded DFG_OPERATION lookupExceptionHandlerInStub(ExecState*, StructureStubInfo*) WTF_INTERNAL;
295
296 // These operations implement the implicitly called ToInt32 and ToBoolean conversions from ES5.
297 // This conversion returns an int32_t within a size_t such that the value is zero extended to fill the register.
298 size_t DFG_OPERATION dfgConvertJSValueToInt32(ExecState*, EncodedJSValue) WTF_INTERNAL;
299 size_t DFG_OPERATION dfgConvertJSValueToBoolean(ExecState*, EncodedJSValue) WTF_INTERNAL;
300
301 void DFG_OPERATION debugOperationPrintSpeculationFailure(ExecState*, void*, void*) WTF_INTERNAL;
302
303 void DFG_OPERATION triggerReoptimizationNow(CodeBlock*) WTF_INTERNAL;
304
305 } // extern "C"
306
307 inline P_DFGOperation_EStZ operationNewTypedArrayWithSizeForType(TypedArrayType type)
308 {
309     switch (type) {
310     case TypeInt8:
311         return operationNewInt8ArrayWithSize;
312     case TypeInt16:
313         return operationNewInt16ArrayWithSize;
314     case TypeInt32:
315         return operationNewInt32ArrayWithSize;
316     case TypeUint8:
317         return operationNewUint8ArrayWithSize;
318     case TypeUint8Clamped:
319         return operationNewUint8ClampedArrayWithSize;
320     case TypeUint16:
321         return operationNewUint16ArrayWithSize;
322     case TypeUint32:
323         return operationNewUint32ArrayWithSize;
324     case TypeFloat32:
325         return operationNewFloat32ArrayWithSize;
326     case TypeFloat64:
327         return operationNewFloat64ArrayWithSize;
328     case NotTypedArray:
329     case TypeDataView:
330         break;
331     }
332     RELEASE_ASSERT_NOT_REACHED();
333     return 0;
334 }
335
336 inline P_DFGOperation_EStJ operationNewTypedArrayWithOneArgumentForType(TypedArrayType type)
337 {
338     switch (type) {
339     case TypeInt8:
340         return operationNewInt8ArrayWithOneArgument;
341     case TypeInt16:
342         return operationNewInt16ArrayWithOneArgument;
343     case TypeInt32:
344         return operationNewInt32ArrayWithOneArgument;
345     case TypeUint8:
346         return operationNewUint8ArrayWithOneArgument;
347     case TypeUint8Clamped:
348         return operationNewUint8ClampedArrayWithOneArgument;
349     case TypeUint16:
350         return operationNewUint16ArrayWithOneArgument;
351     case TypeUint32:
352         return operationNewUint32ArrayWithOneArgument;
353     case TypeFloat32:
354         return operationNewFloat32ArrayWithOneArgument;
355     case TypeFloat64:
356         return operationNewFloat64ArrayWithOneArgument;
357     case NotTypedArray:
358     case TypeDataView:
359         break;
360     }
361     RELEASE_ASSERT_NOT_REACHED();
362     return 0;
363 }
364
365 } } // namespace JSC::DFG
366
367 #endif
368 #endif