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Diffstat (limited to 'src/qml/jit/qv4graphbuilder_p.h')
| -rw-r--r-- | src/qml/jit/qv4graphbuilder_p.h | 298 |
1 files changed, 298 insertions, 0 deletions
diff --git a/src/qml/jit/qv4graphbuilder_p.h b/src/qml/jit/qv4graphbuilder_p.h new file mode 100644 index 0000000000..450d8640b7 --- /dev/null +++ b/src/qml/jit/qv4graphbuilder_p.h @@ -0,0 +1,298 @@ +/**************************************************************************** +** +** Copyright (C) 2018 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtQml module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QV4GRAPHBUILDER_P_H +#define QV4GRAPHBUILDER_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <private/qv4global_p.h> +#include <private/qv4bytecodehandler_p.h> +#include <private/qv4ir_p.h> +#include "qv4graph_p.h" + +QT_REQUIRE_CONFIG(qml_tracing); + +QT_BEGIN_NAMESPACE + +namespace QV4 { +namespace IR { + +// The graph builder walks the byte-code, and produces a graph. The graph is a digraph, where the +// nodes have operations, and the edges are dependencies (or inputs). +class GraphBuilder: protected Moth::ByteCodeHandler +{ + Q_DISABLE_COPY_MOVE(GraphBuilder) + + enum { NoTraceSlot = -1 }; + + struct LabelInfo { //### extend this to also capture the amount of slots that are live + LabelInfo() = default; + LabelInfo(unsigned label) : labelOffset(label) {} + unsigned labelOffset = 0; + }; + +public: + static void buildGraph(IR::Function *function); + + class InterpreterEnvironment; + + void setEnv(InterpreterEnvironment *newEnv) + { m_currentEnv = newEnv; } + + InterpreterEnvironment *env() const + { return m_currentEnv; } + +private: + GraphBuilder(IR::Function *function); + ~GraphBuilder() override = default; + + void startGraph(); + void endGraph(); + + Node *bindAcc(Node *n); + Node *createAndLinkNode(Operation *op, Node *operands[], size_t opCount, bool incomplete = false); + Node *createNode(Operation *op, bool incomplete = false); + Node *createNode(Operation *op, Node *n1); + Node *createNode(Operation *op, Node *n1, Node *n2); + Node *createNode(Operation *op, Node *n1, Node *n2, Node *n3); + Node *createNode(Operation *op, Node *n1, Node *n2, Node *n3, Node *n4); + Node *createRegion(unsigned nControlInputs); + Node *createIfTrue(); + Node *createIfFalse(); + Node *createConstant(int v); + Node *createPhi(unsigned nInputs, Node *input, Node *control); + Node *createEffectPhi(unsigned nInputs, Node *input, Node *control); + Node *createHandleUnwind(int offset); + Node *mergeControl(Node *c1, Node *c2); + Node *mergeEffect(Node *e1, Node *e2, Node *control); + Node *mergeValue(Node *v1, Node *v2, Node *control); + + Node *createToBoolean(Node *input); + + using VarArgNodes = QVarLengthArray<Node *, 32>; + void populate(VarArgNodes &args, int argc, int argv); + + void queueFunctionExit(Node *exitNode); + + Function *function() const + { return m_func; } + + Graph *graph() + { return m_graph; } + + Node *mergeIntoSuccessor(int offset); + + OperationBuilder *opBuilder() const + { return m_graph->opBuilder(); } + + int absoluteOffset(int offset) const + { return offset + nextInstructionOffset(); } + + const LabelInfo *labelInfoAt(unsigned offset) const; + const LabelInfo *isLoopStart(unsigned offset) const; + void handleLoopStart(const LabelInfo &labelInfo); + void startUnwinding(); + +protected: // ByteCodeHandler + void generate_Ret() override; + void generate_Debug() override; + void generate_LoadConst(int index) override; + void generate_LoadZero() override; + void generate_LoadTrue() override; + void generate_LoadFalse() override; + void generate_LoadNull() override; + void generate_LoadUndefined() override; + void generate_LoadInt(int value) override; + void generate_MoveConst(int constIndex, int destTemp) override; + void generate_LoadReg(int reg) override; + void generate_StoreReg(int reg) override; + void generate_MoveReg(int srcReg, int destReg) override; + void generate_LoadImport(int index) override; + void generate_LoadLocal(int index, int traceSlot) override; + void generate_StoreLocal(int index) override; + void generate_LoadScopedLocal(int scope, int index, int traceSlot) override; + void generate_StoreScopedLocal(int scope, int index) override; + void generate_LoadRuntimeString(int stringId) override; + void generate_MoveRegExp(int regExpId, int destReg) override; + void generate_LoadClosure(int value) override; + void generate_LoadName(int name, int traceSlot) override; + void generate_LoadGlobalLookup(int index, int traceSlot) override; + void generate_StoreNameSloppy(int name) override; + void generate_StoreNameStrict(int name) override; + void generate_LoadElement(int base, int traceSlot) override; + void generate_StoreElement(int base, int index, int traceSlot) override; + void generate_LoadProperty(int name, int traceSlot) override; + void generate_GetLookup(int index, int traceSlot) override; + void generate_StoreProperty(int name, int base) override; + void generate_SetLookup(int index, int base) override; + void generate_LoadSuperProperty(int property) override; + void generate_StoreSuperProperty(int property) override; + void generate_LoadQmlContextPropertyLookup(int property, int traceSlot) override; + void generate_Yield() override; + void generate_YieldStar() override; + void generate_Resume(int offset) override; + void finalizeCall(Operation::Kind kind, VarArgNodes &args, int argc, int argv); + void generate_CallValue(int name, int argc, int argv, int traceSlot) override; + void generate_CallWithReceiver(int name, int thisObject, int argc, int argv, + int traceSlot) override; + void generate_CallProperty(int name, int base, int argc, int argv, int traceSlot) override; + void generate_CallPropertyLookup(int lookupIndex, int base, int argc, int argv, + int traceSlot) override; + void generate_CallElement(int base, int index, int argc, int argv, int traceSlot) override; + void generate_CallName(int name, int argc, int argv, int traceSlot) override; + void generate_CallPossiblyDirectEval(int argc, int argv, int traceSlot) override; + void generate_CallGlobalLookup(int index, int argc, int argv, int traceSlot) override; + void generate_CallQmlContextPropertyLookup(int index, int argc, int argv, int traceSlot) override; + void generate_SetUnwindHandler(int offset) override; + void generate_UnwindDispatch() override; + void generate_UnwindToLabel(int level, int offset) override; + void generate_DeadTemporalZoneCheck(int name) override; + void generate_ThrowException() override; + void generate_GetException() override; + void generate_SetException() override; + void generate_CreateCallContext() override; + void generate_PushCatchContext(int index, int name) override; + void generate_PushWithContext() override; + void generate_PushBlockContext(int index) override; + void generate_CloneBlockContext() override; + void generate_PushScriptContext(int index) override; + void generate_PopScriptContext() override; + void generate_PopContext() override; + void generate_GetIterator(int iterator) override; + void generate_IteratorNextAndFriends_TrailingStuff(Node *iterationNode, int resultSlot); + void generate_IteratorNext(int value, int done) override; + void generate_IteratorNextForYieldStar(int iterator, int object) override; + void generate_IteratorClose(int done) override; + void generate_DestructureRestElement() override; + void generate_DeleteProperty(int base, int index) override; + void generate_DeleteName(int name) override; + void generate_TypeofName(int name) override; + void generate_TypeofValue() override; + void generate_DeclareVar(int varName, int isDeletable) override; + void generate_DefineArray(int argc, int argv) override; + void generate_DefineObjectLiteral(int internalClassId, int argc, int argv) override; + void generate_CreateClass(int classIndex, int heritage, int computedNames) override; + void generate_CreateMappedArgumentsObject() override; + void generate_CreateUnmappedArgumentsObject() override; + void generate_CreateRestParameter(int argIndex) override; + void generate_ConvertThisToObject() override; + void generate_LoadSuperConstructor() override; + void generate_ToObject() override; + void generate_CallWithSpread(int func, int thisObject, int argc, int argv, + int traceSlot) override; + void generate_TailCall(int func, int thisObject, int argc, int argv) override; + void generate_Construct(int func, int argc, int argv) override; + void generate_ConstructWithSpread(int func, int argc, int argv) override; + void generate_Jump(int offset) override; + void generate_JumpTrue(int traceSlot, int offset) override; + void generate_JumpFalse(int traceSlot, int offset) override; + void generate_JumpFalse(Node *condition, int traceSlot, int offset); + void generate_JumpNoException(int offset) override; + void generate_JumpNotUndefined(int offset) override; + void generate_CmpEqNull() override; + void generate_CmpNeNull() override; + void generate_CmpEqInt(int lhs) override; + void generate_CmpNeInt(int lhs) override; + void generate_CmpEq(int lhs) override; + void generate_CmpNe(int lhs) override; + void generate_CmpGt(int lhs) override; + void generate_CmpGe(int lhs) override; + void generate_CmpLt(int lhs) override; + void generate_CmpLe(int lhs) override; + void generate_CmpStrictEqual(int lhs) override; + void generate_CmpStrictNotEqual(int lhs) override; + void generate_CmpIn(int lhs) override; + void generate_CmpInstanceOf(int lhs) override; + void generate_UNot() override; + void generate_UPlus(int traceSlot) override; + void generate_UMinus(int traceSlot) override; + void generate_UCompl() override; + void generate_Increment(int traceSlot) override; + void generate_Decrement(int traceSlot) override; + void generate_Add(int lhs, int traceSlot) override; + void generate_BitAnd(int lhs) override; + void generate_BitOr(int lhs) override; + void generate_BitXor(int lhs) override; + void generate_UShr(int lhs) override; + void generate_Shr(int lhs) override; + void generate_Shl(int lhs) override; + void generate_BitAndConst(int rhs) override; + void generate_BitOrConst(int rhs) override; + void generate_BitXorConst(int rhs) override; + void generate_UShrConst(int rhs) override; + void generate_ShrConst(int rhs) override; + void generate_ShlConst(int rhs) override; + void generate_Exp(int lhs) override; + void generate_Mul(int lhs, int traceSlot) override; + void generate_Div(int lhs) override; + void generate_Mod(int lhs, int traceSlot) override; + void generate_Sub(int lhs, int traceSlot) override; + void generate_InitializeBlockDeadTemporalZone(int firstReg, int count) override; + void generate_ThrowOnNullOrUndefined() override; + void generate_GetTemplateObject(int index) override; + + Verdict startInstruction(Moth::Instr::Type instr) override; + void endInstruction(Moth::Instr::Type instr) override; + +private: + IR::Function *m_func; + Graph *m_graph; + InterpreterEnvironment *m_currentEnv; + std::vector<Node *> m_exitControls; + QHash<int, InterpreterEnvironment *> m_envForOffset; + std::vector<LabelInfo> m_labelInfos; + int m_currentUnwindHandlerOffset = 0; +}; + +} // namespace IR +} // namespace QV4 + +QT_END_NAMESPACE + +#endif // QV4GRAPHBUILDER_P_H |