| // Copyright 2015 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef V8_COMPILER_WASM_COMPILER_H_ |
| #define V8_COMPILER_WASM_COMPILER_H_ |
| |
| #include <memory> |
| |
| // Clients of this interface shouldn't depend on lots of compiler internals. |
| // Do not include anything from src/compiler here! |
| #include "src/compilation-info.h" |
| #include "src/compiler.h" |
| #include "src/wasm/wasm-opcodes.h" |
| #include "src/wasm/wasm-result.h" |
| #include "src/zone/zone.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| namespace compiler { |
| // Forward declarations for some compiler data structures. |
| class Node; |
| class JSGraph; |
| class Graph; |
| class Operator; |
| class SourcePositionTable; |
| } // namespace compiler |
| |
| namespace wasm { |
| // Forward declarations for some WASM data structures. |
| struct ModuleEnv; |
| struct WasmFunction; |
| class ErrorThrower; |
| struct DecodeStruct; |
| |
| // Expose {Node} and {Graph} opaquely as {wasm::TFNode} and {wasm::TFGraph}. |
| typedef compiler::Node TFNode; |
| typedef compiler::JSGraph TFGraph; |
| } // namespace wasm |
| |
| namespace compiler { |
| class WasmCompilationUnit final { |
| public: |
| WasmCompilationUnit(wasm::ErrorThrower* thrower, Isolate* isolate, |
| wasm::ModuleEnv* module_env, |
| const wasm::WasmFunction* function, uint32_t index); |
| |
| Zone* graph_zone() { return graph_zone_.get(); } |
| int index() const { return index_; } |
| |
| void ExecuteCompilation(); |
| Handle<Code> FinishCompilation(); |
| |
| static Handle<Code> CompileWasmFunction(wasm::ErrorThrower* thrower, |
| Isolate* isolate, |
| wasm::ModuleEnv* module_env, |
| const wasm::WasmFunction* function) { |
| WasmCompilationUnit unit(thrower, isolate, module_env, function, 0); |
| unit.ExecuteCompilation(); |
| return unit.FinishCompilation(); |
| } |
| |
| private: |
| SourcePositionTable* BuildGraphForWasmFunction(double* decode_ms); |
| |
| wasm::ErrorThrower* thrower_; |
| Isolate* isolate_; |
| wasm::ModuleEnv* module_env_; |
| const wasm::WasmFunction* function_; |
| // The graph zone is deallocated at the end of ExecuteCompilation. |
| std::unique_ptr<Zone> graph_zone_; |
| JSGraph* jsgraph_; |
| Zone compilation_zone_; |
| CompilationInfo info_; |
| std::unique_ptr<CompilationJob> job_; |
| uint32_t index_; |
| wasm::Result<wasm::DecodeStruct*> graph_construction_result_; |
| bool ok_; |
| |
| DISALLOW_COPY_AND_ASSIGN(WasmCompilationUnit); |
| }; |
| |
| // Wraps a JS function, producing a code object that can be called from WASM. |
| Handle<Code> CompileWasmToJSWrapper(Isolate* isolate, Handle<JSReceiver> target, |
| wasm::FunctionSig* sig, uint32_t index, |
| Handle<String> module_name, |
| MaybeHandle<String> import_name); |
| |
| // Wraps a given wasm code object, producing a code object. |
| Handle<Code> CompileJSToWasmWrapper(Isolate* isolate, wasm::ModuleEnv* module, |
| Handle<Code> wasm_code, uint32_t index); |
| |
| // Abstracts details of building TurboFan graph nodes for WASM to separate |
| // the WASM decoder from the internal details of TurboFan. |
| class WasmTrapHelper; |
| typedef ZoneVector<Node*> NodeVector; |
| class WasmGraphBuilder { |
| public: |
| WasmGraphBuilder( |
| Zone* z, JSGraph* g, wasm::FunctionSig* function_signature, |
| compiler::SourcePositionTable* source_position_table = nullptr); |
| |
| Node** Buffer(size_t count) { |
| if (count > cur_bufsize_) { |
| size_t new_size = count + cur_bufsize_ + 5; |
| cur_buffer_ = |
| reinterpret_cast<Node**>(zone_->New(new_size * sizeof(Node*))); |
| cur_bufsize_ = new_size; |
| } |
| return cur_buffer_; |
| } |
| |
| //----------------------------------------------------------------------- |
| // Operations independent of {control} or {effect}. |
| //----------------------------------------------------------------------- |
| Node* Error(); |
| Node* Start(unsigned params); |
| Node* Param(unsigned index, wasm::LocalType type); |
| Node* Loop(Node* entry); |
| Node* Terminate(Node* effect, Node* control); |
| Node* Merge(unsigned count, Node** controls); |
| Node* Phi(wasm::LocalType type, unsigned count, Node** vals, Node* control); |
| Node* EffectPhi(unsigned count, Node** effects, Node* control); |
| Node* NumberConstant(int32_t value); |
| Node* Uint32Constant(uint32_t value); |
| Node* Int32Constant(int32_t value); |
| Node* Int64Constant(int64_t value); |
| Node* Float32Constant(float value); |
| Node* Float64Constant(double value); |
| Node* HeapConstant(Handle<HeapObject> value); |
| Node* Binop(wasm::WasmOpcode opcode, Node* left, Node* right, |
| wasm::WasmCodePosition position = wasm::kNoCodePosition); |
| Node* Unop(wasm::WasmOpcode opcode, Node* input, |
| wasm::WasmCodePosition position = wasm::kNoCodePosition); |
| Node* GrowMemory(Node* input); |
| Node* Throw(Node* input); |
| Node* Catch(Node* input, wasm::WasmCodePosition position); |
| unsigned InputCount(Node* node); |
| bool IsPhiWithMerge(Node* phi, Node* merge); |
| bool ThrowsException(Node* node, Node** if_success, Node** if_exception); |
| void AppendToMerge(Node* merge, Node* from); |
| void AppendToPhi(Node* phi, Node* from); |
| |
| void StackCheck(wasm::WasmCodePosition position, Node** effect = nullptr, |
| Node** control = nullptr); |
| |
| //----------------------------------------------------------------------- |
| // Operations that read and/or write {control} and {effect}. |
| //----------------------------------------------------------------------- |
| Node* BranchNoHint(Node* cond, Node** true_node, Node** false_node); |
| Node* BranchExpectTrue(Node* cond, Node** true_node, Node** false_node); |
| Node* BranchExpectFalse(Node* cond, Node** true_node, Node** false_node); |
| |
| Node* Switch(unsigned count, Node* key); |
| Node* IfValue(int32_t value, Node* sw); |
| Node* IfDefault(Node* sw); |
| Node* Return(unsigned count, Node** vals); |
| Node* ReturnVoid(); |
| Node* Unreachable(wasm::WasmCodePosition position); |
| |
| Node* CallDirect(uint32_t index, Node** args, Node*** rets, |
| wasm::WasmCodePosition position); |
| Node* CallIndirect(uint32_t index, Node** args, Node*** rets, |
| wasm::WasmCodePosition position); |
| |
| void BuildJSToWasmWrapper(Handle<Code> wasm_code, wasm::FunctionSig* sig); |
| void BuildWasmToJSWrapper(Handle<JSReceiver> target, wasm::FunctionSig* sig); |
| |
| Node* ToJS(Node* node, wasm::LocalType type); |
| Node* FromJS(Node* node, Node* context, wasm::LocalType type); |
| Node* Invert(Node* node); |
| void EnsureFunctionTableNodes(); |
| |
| //----------------------------------------------------------------------- |
| // Operations that concern the linear memory. |
| //----------------------------------------------------------------------- |
| Node* CurrentMemoryPages(); |
| Node* GetGlobal(uint32_t index); |
| Node* SetGlobal(uint32_t index, Node* val); |
| Node* LoadMem(wasm::LocalType type, MachineType memtype, Node* index, |
| uint32_t offset, uint32_t alignment, |
| wasm::WasmCodePosition position); |
| Node* StoreMem(MachineType type, Node* index, uint32_t offset, |
| uint32_t alignment, Node* val, |
| wasm::WasmCodePosition position); |
| |
| static void PrintDebugName(Node* node); |
| |
| Node* Control() { return *control_; } |
| Node* Effect() { return *effect_; } |
| |
| void set_module(wasm::ModuleEnv* module) { this->module_ = module; } |
| |
| void set_control_ptr(Node** control) { this->control_ = control; } |
| |
| void set_effect_ptr(Node** effect) { this->effect_ = effect; } |
| |
| wasm::FunctionSig* GetFunctionSignature() { return function_signature_; } |
| |
| void Int64LoweringForTesting(); |
| |
| void SimdScalarLoweringForTesting(); |
| |
| void SetSourcePosition(Node* node, wasm::WasmCodePosition position); |
| |
| Node* CreateS128Value(int32_t value); |
| |
| Node* SimdOp(wasm::WasmOpcode opcode, const NodeVector& inputs); |
| Node* SimdExtractLane(wasm::WasmOpcode opcode, uint8_t lane, Node* input); |
| |
| private: |
| static const int kDefaultBufferSize = 16; |
| friend class WasmTrapHelper; |
| |
| Zone* zone_; |
| JSGraph* jsgraph_; |
| wasm::ModuleEnv* module_; |
| Node* mem_buffer_; |
| Node* mem_size_; |
| NodeVector function_tables_; |
| NodeVector function_table_sizes_; |
| Node** control_; |
| Node** effect_; |
| Node** cur_buffer_; |
| size_t cur_bufsize_; |
| Node* def_buffer_[kDefaultBufferSize]; |
| |
| WasmTrapHelper* trap_; |
| wasm::FunctionSig* function_signature_; |
| SetOncePointer<const Operator> allocate_heap_number_operator_; |
| |
| compiler::SourcePositionTable* source_position_table_ = nullptr; |
| |
| // Internal helper methods. |
| JSGraph* jsgraph() { return jsgraph_; } |
| Graph* graph(); |
| |
| Node* String(const char* string); |
| Node* MemSize(uint32_t offset); |
| Node* MemBuffer(uint32_t offset); |
| void BoundsCheckMem(MachineType memtype, Node* index, uint32_t offset, |
| wasm::WasmCodePosition position); |
| |
| Node* BuildChangeEndianness(Node* node, MachineType type, |
| wasm::LocalType wasmtype = wasm::kAstStmt); |
| |
| Node* MaskShiftCount32(Node* node); |
| Node* MaskShiftCount64(Node* node); |
| |
| Node* BuildCCall(MachineSignature* sig, Node** args); |
| Node* BuildWasmCall(wasm::FunctionSig* sig, Node** args, Node*** rets, |
| wasm::WasmCodePosition position); |
| |
| Node* BuildF32CopySign(Node* left, Node* right); |
| Node* BuildF64CopySign(Node* left, Node* right); |
| Node* BuildI32SConvertF32(Node* input, wasm::WasmCodePosition position); |
| Node* BuildI32SConvertF64(Node* input, wasm::WasmCodePosition position); |
| Node* BuildI32UConvertF32(Node* input, wasm::WasmCodePosition position); |
| Node* BuildI32UConvertF64(Node* input, wasm::WasmCodePosition position); |
| Node* BuildI32Ctz(Node* input); |
| Node* BuildI32Popcnt(Node* input); |
| Node* BuildI64Ctz(Node* input); |
| Node* BuildI64Popcnt(Node* input); |
| Node* BuildBitCountingCall(Node* input, ExternalReference ref, |
| MachineRepresentation input_type); |
| |
| Node* BuildCFuncInstruction(ExternalReference ref, MachineType type, |
| Node* input0, Node* input1 = nullptr); |
| Node* BuildF32Trunc(Node* input); |
| Node* BuildF32Floor(Node* input); |
| Node* BuildF32Ceil(Node* input); |
| Node* BuildF32NearestInt(Node* input); |
| Node* BuildF64Trunc(Node* input); |
| Node* BuildF64Floor(Node* input); |
| Node* BuildF64Ceil(Node* input); |
| Node* BuildF64NearestInt(Node* input); |
| Node* BuildI32Rol(Node* left, Node* right); |
| Node* BuildI64Rol(Node* left, Node* right); |
| |
| Node* BuildF64Acos(Node* input); |
| Node* BuildF64Asin(Node* input); |
| Node* BuildF64Pow(Node* left, Node* right); |
| Node* BuildF64Mod(Node* left, Node* right); |
| |
| Node* BuildIntToFloatConversionInstruction( |
| Node* input, ExternalReference ref, |
| MachineRepresentation parameter_representation, |
| const MachineType result_type); |
| Node* BuildF32SConvertI64(Node* input); |
| Node* BuildF32UConvertI64(Node* input); |
| Node* BuildF64SConvertI64(Node* input); |
| Node* BuildF64UConvertI64(Node* input); |
| |
| Node* BuildFloatToIntConversionInstruction( |
| Node* input, ExternalReference ref, |
| MachineRepresentation parameter_representation, |
| const MachineType result_type, wasm::WasmCodePosition position); |
| Node* BuildI64SConvertF32(Node* input, wasm::WasmCodePosition position); |
| Node* BuildI64UConvertF32(Node* input, wasm::WasmCodePosition position); |
| Node* BuildI64SConvertF64(Node* input, wasm::WasmCodePosition position); |
| Node* BuildI64UConvertF64(Node* input, wasm::WasmCodePosition position); |
| |
| Node* BuildI32DivS(Node* left, Node* right, wasm::WasmCodePosition position); |
| Node* BuildI32RemS(Node* left, Node* right, wasm::WasmCodePosition position); |
| Node* BuildI32DivU(Node* left, Node* right, wasm::WasmCodePosition position); |
| Node* BuildI32RemU(Node* left, Node* right, wasm::WasmCodePosition position); |
| |
| Node* BuildI64DivS(Node* left, Node* right, wasm::WasmCodePosition position); |
| Node* BuildI64RemS(Node* left, Node* right, wasm::WasmCodePosition position); |
| Node* BuildI64DivU(Node* left, Node* right, wasm::WasmCodePosition position); |
| Node* BuildI64RemU(Node* left, Node* right, wasm::WasmCodePosition position); |
| Node* BuildDiv64Call(Node* left, Node* right, ExternalReference ref, |
| MachineType result_type, int trap_zero, |
| wasm::WasmCodePosition position); |
| |
| Node* BuildJavaScriptToNumber(Node* node, Node* context, Node* effect, |
| Node* control); |
| |
| Node* BuildChangeInt32ToTagged(Node* value); |
| Node* BuildChangeFloat64ToTagged(Node* value); |
| Node* BuildChangeTaggedToFloat64(Node* value); |
| |
| Node* BuildChangeInt32ToSmi(Node* value); |
| Node* BuildChangeSmiToInt32(Node* value); |
| Node* BuildChangeUint32ToSmi(Node* value); |
| Node* BuildChangeSmiToFloat64(Node* value); |
| Node* BuildTestNotSmi(Node* value); |
| Node* BuildSmiShiftBitsConstant(); |
| |
| Node* BuildAllocateHeapNumberWithValue(Node* value, Node* control); |
| Node* BuildLoadHeapNumberValue(Node* value, Node* control); |
| Node* BuildHeapNumberValueIndexConstant(); |
| |
| // Asm.js specific functionality. |
| Node* BuildI32AsmjsSConvertF32(Node* input); |
| Node* BuildI32AsmjsSConvertF64(Node* input); |
| Node* BuildI32AsmjsUConvertF32(Node* input); |
| Node* BuildI32AsmjsUConvertF64(Node* input); |
| Node* BuildI32AsmjsDivS(Node* left, Node* right); |
| Node* BuildI32AsmjsRemS(Node* left, Node* right); |
| Node* BuildI32AsmjsDivU(Node* left, Node* right); |
| Node* BuildI32AsmjsRemU(Node* left, Node* right); |
| Node* BuildAsmjsLoadMem(MachineType type, Node* index); |
| Node* BuildAsmjsStoreMem(MachineType type, Node* index, Node* val); |
| |
| Node** Realloc(Node** buffer, size_t old_count, size_t new_count) { |
| Node** buf = Buffer(new_count); |
| if (buf != buffer) memcpy(buf, buffer, old_count * sizeof(Node*)); |
| return buf; |
| } |
| |
| int AddParameterNodes(Node** args, int pos, int param_count, |
| wasm::FunctionSig* sig); |
| }; |
| } // namespace compiler |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_COMPILER_WASM_COMPILER_H_ |
