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https://github.com/dart-lang/sdk
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efa1e18428
This CL removes asserts that prevented background compiler from doing class finalization. It adds program_lock synchronization for when object properties are updated during class finalization. It also encloses code instructions installation into safepoint scopes to ensure that no code is executed during installation. Issue https://github.com/dart-lang/sdk/issues/36097 TEST=existing test suite Change-Id: If297e44f51b187242eca2cdcfff066c8f6386d97 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/178163 Commit-Queue: Alexander Aprelev <aam@google.com> Reviewed-by: Ryan Macnak <rmacnak@google.com>
119 lines
5 KiB
C++
119 lines
5 KiB
C++
// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "vm/globals.h"
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#if defined(TARGET_ARCH_ARM64)
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#include "vm/dart_entry.h"
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#include "vm/isolate.h"
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#include "vm/native_entry.h"
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#include "vm/native_entry_test.h"
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#include "vm/object.h"
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#include "vm/runtime_entry.h"
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#include "vm/stub_code.h"
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#include "vm/symbols.h"
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#include "vm/unit_test.h"
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#define __ assembler->
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namespace dart {
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static Function* CreateFunction(const char* name) {
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const String& class_name =
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String::Handle(Symbols::New(Thread::Current(), "ownerClass"));
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const Script& script = Script::Handle();
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const Library& lib = Library::Handle(Library::New(class_name));
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const Class& owner_class = Class::Handle(
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Class::New(lib, class_name, script, TokenPosition::kNoSource));
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const String& function_name =
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String::ZoneHandle(Symbols::New(Thread::Current(), name));
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const FunctionType& signature = FunctionType::ZoneHandle(FunctionType::New());
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Function& function = Function::ZoneHandle(Function::New(
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signature, function_name, UntaggedFunction::kRegularFunction, true, false,
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false, false, false, owner_class, TokenPosition::kNoSource));
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return &function;
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}
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// Test calls to stub code which calls into the runtime.
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static void GenerateCallToCallRuntimeStub(compiler::Assembler* assembler,
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int length) {
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const int argc = 2;
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const Smi& smi_length = Smi::ZoneHandle(Smi::New(length));
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__ EnterDartFrame(0);
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__ PushObject(Object::null_object()); // Push Null obj for return value.
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__ PushObject(smi_length); // Push argument 1: length.
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__ PushObject(Object::null_object()); // Push argument 2: type arguments.
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ASSERT(kAllocateArrayRuntimeEntry.argument_count() == argc);
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__ CallRuntime(kAllocateArrayRuntimeEntry, argc);
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__ add(SP, SP, compiler::Operand(argc * kWordSize));
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__ Pop(R0); // Pop return value from return slot.
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__ LeaveDartFrame();
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__ ret();
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}
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ISOLATE_UNIT_TEST_CASE(CallRuntimeStubCode) {
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extern const Function& RegisterFakeFunction(const char* name,
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const Code& code);
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const int length = 10;
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const char* kName = "Test_CallRuntimeStubCode";
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compiler::ObjectPoolBuilder object_pool_builder;
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compiler::Assembler assembler(&object_pool_builder);
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GenerateCallToCallRuntimeStub(&assembler, length);
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SafepointWriteRwLocker ml(thread, thread->isolate_group()->program_lock());
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const Code& code = Code::Handle(Code::FinalizeCodeAndNotify(
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*CreateFunction("Test_CallRuntimeStubCode"), nullptr, &assembler,
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Code::PoolAttachment::kAttachPool));
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const Function& function = RegisterFakeFunction(kName, code);
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Array& result = Array::Handle();
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result ^= DartEntry::InvokeFunction(function, Object::empty_array());
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EXPECT_EQ(length, result.Length());
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}
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// Test calls to stub code which calls into a leaf runtime entry.
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static void GenerateCallToCallLeafRuntimeStub(compiler::Assembler* assembler,
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const char* str_value,
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intptr_t lhs_index_value,
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intptr_t rhs_index_value,
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intptr_t length_value) {
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const String& str = String::ZoneHandle(String::New(str_value, Heap::kOld));
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const Smi& lhs_index = Smi::ZoneHandle(Smi::New(lhs_index_value));
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const Smi& rhs_index = Smi::ZoneHandle(Smi::New(rhs_index_value));
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const Smi& length = Smi::ZoneHandle(Smi::New(length_value));
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__ EnterDartFrame(0);
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__ ReserveAlignedFrameSpace(0);
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__ LoadObject(R0, str);
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__ LoadObject(R1, lhs_index);
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__ LoadObject(R2, rhs_index);
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__ LoadObject(R3, length);
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__ CallRuntime(kCaseInsensitiveCompareUCS2RuntimeEntry, 4);
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__ LeaveDartFrame();
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__ ret(); // Return value is in R0.
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}
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ISOLATE_UNIT_TEST_CASE(CallLeafRuntimeStubCode) {
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extern const Function& RegisterFakeFunction(const char* name,
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const Code& code);
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const char* str_value = "abAB";
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intptr_t lhs_index_value = 0;
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intptr_t rhs_index_value = 2;
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intptr_t length_value = 2;
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const char* kName = "Test_CallLeafRuntimeStubCode";
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compiler::ObjectPoolBuilder object_pool_builder;
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compiler::Assembler assembler(&object_pool_builder);
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GenerateCallToCallLeafRuntimeStub(&assembler, str_value, lhs_index_value,
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rhs_index_value, length_value);
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SafepointWriteRwLocker ml(thread, thread->isolate_group()->program_lock());
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const Code& code = Code::Handle(Code::FinalizeCodeAndNotify(
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*CreateFunction("Test_CallLeafRuntimeStubCode"), nullptr, &assembler,
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Code::PoolAttachment::kAttachPool));
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const Function& function = RegisterFakeFunction(kName, code);
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Instance& result = Instance::Handle();
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result ^= DartEntry::InvokeFunction(function, Object::empty_array());
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EXPECT_EQ(Bool::True().ptr(), result.ptr());
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}
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} // namespace dart
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#endif // defined TARGET_ARCH_ARM64
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