| // Copyright 2017 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. |
| |
| #include "src/builtins/builtins-utils-gen.h" |
| #include "src/codegen/code-stub-assembler.h" |
| #include "src/codegen/interface-descriptors.h" |
| #include "src/objects/objects-inl.h" |
| #include "src/wasm/wasm-objects.h" |
| #include "src/wasm/wasm-opcodes.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| class WasmBuiltinsAssembler : public CodeStubAssembler { |
| public: |
| explicit WasmBuiltinsAssembler(compiler::CodeAssemblerState* state) |
| : CodeStubAssembler(state) {} |
| |
| protected: |
| TNode<WasmInstanceObject> LoadInstanceFromFrame() { |
| return CAST( |
| LoadFromParentFrame(WasmCompiledFrameConstants::kWasmInstanceOffset)); |
| } |
| |
| TNode<Context> LoadContextFromInstance(TNode<WasmInstanceObject> instance) { |
| return CAST(Load(MachineType::AnyTagged(), instance, |
| IntPtrConstant(WasmInstanceObject::kNativeContextOffset - |
| kHeapObjectTag))); |
| } |
| }; |
| |
| TF_BUILTIN(WasmStackGuard, WasmBuiltinsAssembler) { |
| TNode<WasmInstanceObject> instance = LoadInstanceFromFrame(); |
| TNode<Context> context = LoadContextFromInstance(instance); |
| TailCallRuntime(Runtime::kWasmStackGuard, context); |
| } |
| |
| TF_BUILTIN(WasmStackOverflow, WasmBuiltinsAssembler) { |
| TNode<WasmInstanceObject> instance = LoadInstanceFromFrame(); |
| TNode<Context> context = LoadContextFromInstance(instance); |
| TailCallRuntime(Runtime::kThrowWasmStackOverflow, context); |
| } |
| |
| TF_BUILTIN(WasmThrow, WasmBuiltinsAssembler) { |
| TNode<Object> exception = CAST(Parameter(Descriptor::kException)); |
| TNode<WasmInstanceObject> instance = LoadInstanceFromFrame(); |
| TNode<Context> context = LoadContextFromInstance(instance); |
| TailCallRuntime(Runtime::kThrow, context, exception); |
| } |
| |
| TF_BUILTIN(WasmRethrow, WasmBuiltinsAssembler) { |
| TNode<Object> exception = CAST(Parameter(Descriptor::kException)); |
| TNode<WasmInstanceObject> instance = LoadInstanceFromFrame(); |
| TNode<Context> context = LoadContextFromInstance(instance); |
| TailCallRuntime(Runtime::kReThrow, context, exception); |
| } |
| |
| TF_BUILTIN(WasmTraceMemory, WasmBuiltinsAssembler) { |
| TNode<Smi> info = CAST(Parameter(Descriptor::kMemoryTracingInfo)); |
| TNode<WasmInstanceObject> instance = LoadInstanceFromFrame(); |
| TNode<Context> context = LoadContextFromInstance(instance); |
| TailCallRuntime(Runtime::kWasmTraceMemory, context, info); |
| } |
| |
| TF_BUILTIN(WasmAtomicNotify, WasmBuiltinsAssembler) { |
| TNode<Uint32T> address = |
| UncheckedCast<Uint32T>(Parameter(Descriptor::kAddress)); |
| TNode<Uint32T> count = UncheckedCast<Uint32T>(Parameter(Descriptor::kCount)); |
| |
| TNode<WasmInstanceObject> instance = LoadInstanceFromFrame(); |
| TNode<Number> address_number = ChangeUint32ToTagged(address); |
| TNode<Number> count_number = ChangeUint32ToTagged(count); |
| TNode<Context> context = LoadContextFromInstance(instance); |
| |
| TNode<Smi> result_smi = |
| CAST(CallRuntime(Runtime::kWasmAtomicNotify, context, instance, |
| address_number, count_number)); |
| Return(Unsigned(SmiToInt32(result_smi))); |
| } |
| |
| TF_BUILTIN(WasmI32AtomicWait, WasmBuiltinsAssembler) { |
| TNode<Uint32T> address = |
| UncheckedCast<Uint32T>(Parameter(Descriptor::kAddress)); |
| TNode<Int32T> expected_value = |
| UncheckedCast<Int32T>(Parameter(Descriptor::kExpectedValue)); |
| TNode<Float64T> timeout = |
| UncheckedCast<Float64T>(Parameter(Descriptor::kTimeout)); |
| |
| TNode<WasmInstanceObject> instance = LoadInstanceFromFrame(); |
| TNode<Number> address_number = ChangeUint32ToTagged(address); |
| TNode<Number> expected_value_number = ChangeInt32ToTagged(expected_value); |
| TNode<Number> timeout_number = ChangeFloat64ToTagged(timeout); |
| TNode<Context> context = LoadContextFromInstance(instance); |
| |
| TNode<Smi> result_smi = |
| CAST(CallRuntime(Runtime::kWasmI32AtomicWait, context, instance, |
| address_number, expected_value_number, timeout_number)); |
| Return(Unsigned(SmiToInt32(result_smi))); |
| } |
| |
| TF_BUILTIN(WasmI64AtomicWait, WasmBuiltinsAssembler) { |
| TNode<Uint32T> address = |
| UncheckedCast<Uint32T>(Parameter(Descriptor::kAddress)); |
| TNode<Uint32T> expected_value_high = |
| UncheckedCast<Uint32T>(Parameter(Descriptor::kExpectedValueHigh)); |
| TNode<Uint32T> expected_value_low = |
| UncheckedCast<Uint32T>(Parameter(Descriptor::kExpectedValueLow)); |
| TNode<Float64T> timeout = |
| UncheckedCast<Float64T>(Parameter(Descriptor::kTimeout)); |
| |
| TNode<WasmInstanceObject> instance = LoadInstanceFromFrame(); |
| TNode<Number> address_number = ChangeUint32ToTagged(address); |
| TNode<Number> expected_value_high_number = |
| ChangeUint32ToTagged(expected_value_high); |
| TNode<Number> expected_value_low_number = |
| ChangeUint32ToTagged(expected_value_low); |
| TNode<Number> timeout_number = ChangeFloat64ToTagged(timeout); |
| TNode<Context> context = LoadContextFromInstance(instance); |
| |
| TNode<Smi> result_smi = CAST(CallRuntime( |
| Runtime::kWasmI64AtomicWait, context, instance, address_number, |
| expected_value_high_number, expected_value_low_number, timeout_number)); |
| Return(Unsigned(SmiToInt32(result_smi))); |
| } |
| |
| TF_BUILTIN(WasmMemoryGrow, WasmBuiltinsAssembler) { |
| TNode<Int32T> num_pages = |
| UncheckedCast<Int32T>(Parameter(Descriptor::kNumPages)); |
| Label num_pages_out_of_range(this, Label::kDeferred); |
| |
| TNode<BoolT> num_pages_fits_in_smi = |
| IsValidPositiveSmi(ChangeInt32ToIntPtr(num_pages)); |
| GotoIfNot(num_pages_fits_in_smi, &num_pages_out_of_range); |
| |
| TNode<Smi> num_pages_smi = SmiFromInt32(num_pages); |
| TNode<WasmInstanceObject> instance = LoadInstanceFromFrame(); |
| TNode<Context> context = LoadContextFromInstance(instance); |
| TNode<Smi> ret_smi = CAST( |
| CallRuntime(Runtime::kWasmMemoryGrow, context, instance, num_pages_smi)); |
| Return(SmiToInt32(ret_smi)); |
| |
| BIND(&num_pages_out_of_range); |
| Return(Int32Constant(-1)); |
| } |
| |
| TF_BUILTIN(WasmTableGet, WasmBuiltinsAssembler) { |
| TNode<Int32T> entry_index = |
| UncheckedCast<Int32T>(Parameter(Descriptor::kEntryIndex)); |
| TNode<WasmInstanceObject> instance = LoadInstanceFromFrame(); |
| TNode<Context> context = LoadContextFromInstance(instance); |
| Label entry_index_out_of_range(this, Label::kDeferred); |
| |
| TNode<BoolT> entry_index_fits_in_smi = |
| IsValidPositiveSmi(ChangeInt32ToIntPtr(entry_index)); |
| GotoIfNot(entry_index_fits_in_smi, &entry_index_out_of_range); |
| |
| TNode<Smi> entry_index_smi = SmiFromInt32(entry_index); |
| TNode<Smi> table_index_smi = CAST(Parameter(Descriptor::kTableIndex)); |
| |
| TailCallRuntime(Runtime::kWasmFunctionTableGet, context, instance, |
| table_index_smi, entry_index_smi); |
| |
| BIND(&entry_index_out_of_range); |
| MessageTemplate message_id = |
| wasm::WasmOpcodes::TrapReasonToMessageId(wasm::kTrapTableOutOfBounds); |
| TailCallRuntime(Runtime::kThrowWasmError, context, |
| SmiConstant(static_cast<int>(message_id))); |
| } |
| |
| TF_BUILTIN(WasmTableSet, WasmBuiltinsAssembler) { |
| TNode<Int32T> entry_index = |
| UncheckedCast<Int32T>(Parameter(Descriptor::kEntryIndex)); |
| TNode<WasmInstanceObject> instance = LoadInstanceFromFrame(); |
| TNode<Context> context = LoadContextFromInstance(instance); |
| Label entry_index_out_of_range(this, Label::kDeferred); |
| |
| TNode<BoolT> entry_index_fits_in_smi = |
| IsValidPositiveSmi(ChangeInt32ToIntPtr(entry_index)); |
| GotoIfNot(entry_index_fits_in_smi, &entry_index_out_of_range); |
| |
| TNode<Smi> entry_index_smi = SmiFromInt32(entry_index); |
| TNode<Smi> table_index_smi = CAST(Parameter(Descriptor::kTableIndex)); |
| TNode<Object> value = CAST(Parameter(Descriptor::kValue)); |
| TailCallRuntime(Runtime::kWasmFunctionTableSet, context, instance, |
| table_index_smi, entry_index_smi, value); |
| |
| BIND(&entry_index_out_of_range); |
| MessageTemplate message_id = |
| wasm::WasmOpcodes::TrapReasonToMessageId(wasm::kTrapTableOutOfBounds); |
| TailCallRuntime(Runtime::kThrowWasmError, context, |
| SmiConstant(static_cast<int>(message_id))); |
| } |
| |
| #define DECLARE_THROW_RUNTIME_FN(name) \ |
| TF_BUILTIN(ThrowWasm##name, WasmBuiltinsAssembler) { \ |
| TNode<WasmInstanceObject> instance = LoadInstanceFromFrame(); \ |
| TNode<Context> context = LoadContextFromInstance(instance); \ |
| MessageTemplate message_id = \ |
| wasm::WasmOpcodes::TrapReasonToMessageId(wasm::k##name); \ |
| TailCallRuntime(Runtime::kThrowWasmError, context, \ |
| SmiConstant(static_cast<int>(message_id))); \ |
| } |
| FOREACH_WASM_TRAPREASON(DECLARE_THROW_RUNTIME_FN) |
| #undef DECLARE_THROW_RUNTIME_FN |
| |
| } // namespace internal |
| } // namespace v8 |