The Tor Browser / file comparison
comparison: js/src/jit/BaselineInspector.h
js/src/jit/BaselineInspector.h
- changeset 0
- 6474c204b198
equal
deleted
inserted
replaced
| -1:000000000000 | 0:a15c830c24f1 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * vim: set ts=8 sts=4 et sw=4 tw=99: | |
| 3 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef jit_BaselineInspector_h | |
| 8 #define jit_BaselineInspector_h | |
| 9 | |
| 10 #ifdef JS_ION | |
| 11 | |
| 12 #include "jit/BaselineIC.h" | |
| 13 #include "jit/BaselineJIT.h" | |
| 14 #include "jit/MIR.h" | |
| 15 | |
| 16 namespace js { | |
| 17 namespace jit { | |
| 18 | |
| 19 class BaselineInspector; | |
| 20 | |
| 21 class ICInspector | |
| 22 { | |
| 23 protected: | |
| 24 BaselineInspector *inspector_; | |
| 25 jsbytecode *pc_; | |
| 26 ICEntry *icEntry_; | |
| 27 | |
| 28 ICInspector(BaselineInspector *inspector, jsbytecode *pc, ICEntry *icEntry) | |
| 29 : inspector_(inspector), pc_(pc), icEntry_(icEntry) | |
| 30 { } | |
| 31 }; | |
| 32 | |
| 33 class SetElemICInspector : public ICInspector | |
| 34 { | |
| 35 public: | |
| 36 SetElemICInspector(BaselineInspector *inspector, jsbytecode *pc, ICEntry *icEntry) | |
| 37 : ICInspector(inspector, pc, icEntry) | |
| 38 { } | |
| 39 | |
| 40 bool sawOOBDenseWrite() const; | |
| 41 bool sawOOBTypedArrayWrite() const; | |
| 42 bool sawDenseWrite() const; | |
| 43 bool sawTypedArrayWrite() const; | |
| 44 }; | |
| 45 | |
| 46 class BaselineInspector | |
| 47 { | |
| 48 private: | |
| 49 JSScript *script; | |
| 50 ICEntry *prevLookedUpEntry; | |
| 51 | |
| 52 public: | |
| 53 BaselineInspector(JSScript *script) | |
| 54 : script(script), prevLookedUpEntry(nullptr) | |
| 55 { | |
| 56 JS_ASSERT(script); | |
| 57 } | |
| 58 | |
| 59 bool hasBaselineScript() const { | |
| 60 return script->hasBaselineScript(); | |
| 61 } | |
| 62 | |
| 63 BaselineScript *baselineScript() const { | |
| 64 return script->baselineScript(); | |
| 65 } | |
| 66 | |
| 67 private: | |
| 68 #ifdef DEBUG | |
| 69 bool isValidPC(jsbytecode *pc) { | |
| 70 return script->containsPC(pc); | |
| 71 } | |
| 72 #endif | |
| 73 | |
| 74 ICEntry &icEntryFromPC(jsbytecode *pc) { | |
| 75 JS_ASSERT(hasBaselineScript()); | |
| 76 JS_ASSERT(isValidPC(pc)); | |
| 77 ICEntry &ent = baselineScript()->icEntryFromPCOffset(script->pcToOffset(pc), prevLookedUpEntry); | |
| 78 JS_ASSERT(ent.isForOp()); | |
| 79 prevLookedUpEntry = &ent; | |
| 80 return ent; | |
| 81 } | |
| 82 | |
| 83 template <typename ICInspectorType> | |
| 84 ICInspectorType makeICInspector(jsbytecode *pc, ICStub::Kind expectedFallbackKind) { | |
| 85 ICEntry *ent = nullptr; | |
| 86 if (hasBaselineScript()) { | |
| 87 ent = &icEntryFromPC(pc); | |
| 88 JS_ASSERT(ent->fallbackStub()->kind() == expectedFallbackKind); | |
| 89 } | |
| 90 return ICInspectorType(this, pc, ent); | |
| 91 } | |
| 92 | |
| 93 ICStub *monomorphicStub(jsbytecode *pc); | |
| 94 bool dimorphicStub(jsbytecode *pc, ICStub **pfirst, ICStub **psecond); | |
| 95 | |
| 96 public: | |
| 97 typedef Vector<Shape *, 4, IonAllocPolicy> ShapeVector; | |
| 98 bool maybeShapesForPropertyOp(jsbytecode *pc, ShapeVector &shapes); | |
| 99 | |
| 100 SetElemICInspector setElemICInspector(jsbytecode *pc) { | |
| 101 return makeICInspector<SetElemICInspector>(pc, ICStub::SetElem_Fallback); | |
| 102 } | |
| 103 | |
| 104 MIRType expectedResultType(jsbytecode *pc); | |
| 105 MCompare::CompareType expectedCompareType(jsbytecode *pc); | |
| 106 MIRType expectedBinaryArithSpecialization(jsbytecode *pc); | |
| 107 | |
| 108 bool hasSeenNonNativeGetElement(jsbytecode *pc); | |
| 109 bool hasSeenNegativeIndexGetElement(jsbytecode *pc); | |
| 110 bool hasSeenAccessedGetter(jsbytecode *pc); | |
| 111 bool hasSeenDoubleResult(jsbytecode *pc); | |
| 112 bool hasSeenNonStringIterNext(jsbytecode *pc); | |
| 113 | |
| 114 JSObject *getTemplateObject(jsbytecode *pc); | |
| 115 JSObject *getTemplateObjectForNative(jsbytecode *pc, Native native); | |
| 116 | |
| 117 DeclEnvObject *templateDeclEnvObject(); | |
| 118 CallObject *templateCallObject(); | |
| 119 | |
| 120 JSObject *commonGetPropFunction(jsbytecode *pc, Shape **lastProperty, JSFunction **commonGetter); | |
| 121 JSObject *commonSetPropFunction(jsbytecode *pc, Shape **lastProperty, JSFunction **commonSetter); | |
| 122 }; | |
| 123 | |
| 124 } // namespace jit | |
| 125 } // namespace js | |
| 126 | |
| 127 #endif // JS_ION | |
| 128 | |
| 129 #endif /* jit_BaselineInspector_h */ |
