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f9a6a5bdd2
TEST=build Change-Id: I2834ef7cf7cb7c8770f8167a2438cbedcee5c623 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/292063 Commit-Queue: Ryan Macnak <rmacnak@google.com> Reviewed-by: Alexander Aprelev <aam@google.com>
173 lines
5.7 KiB
C++
173 lines
5.7 KiB
C++
// Copyright (c) 2012, 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 "platform/assert.h"
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#include "vm/globals.h"
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#include "vm/code_descriptors.h"
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#include "vm/compiler/assembler/assembler.h"
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#include "vm/compiler/jit/compiler.h"
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#include "vm/dart_entry.h"
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#include "vm/native_entry.h"
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#include "vm/parser.h"
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#include "vm/symbols.h"
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#include "vm/thread.h"
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#include "vm/unit_test.h"
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namespace dart {
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static void NativeFunc(Dart_NativeArguments args) {
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Dart_Handle i = Dart_GetNativeArgument(args, 0);
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Dart_Handle k = Dart_GetNativeArgument(args, 1);
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int64_t value = -1;
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EXPECT_VALID(Dart_IntegerToInt64(i, &value));
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EXPECT_EQ(10, value);
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EXPECT_VALID(Dart_IntegerToInt64(k, &value));
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EXPECT_EQ(20, value);
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{
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TransitionNativeToVM transition(Thread::Current());
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IsolateGroup::Current()->heap()->CollectAllGarbage();
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}
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}
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static Dart_NativeFunction native_resolver(Dart_Handle name,
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int argument_count,
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bool* auto_setup_scope) {
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ASSERT(auto_setup_scope);
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*auto_setup_scope = false;
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return NativeFunc;
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}
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TEST_CASE(StackMapGC) {
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const char* kScriptChars = R"(
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class A {
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@pragma("vm:external-name", "NativeFunc")
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external static void func(var i, var k);
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static foo() {
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var i;
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var s1;
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var k;
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var s2;
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var s3;
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i = 10; s1 = 'abcd'; k = 20; s2 = 'B'; s3 = 'C';
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func(i, k);
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return i + k; }
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static void moo() {
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var i = A.foo();
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if (i != 30) throw '$i != 30';
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}
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})";
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// First setup the script and compile the script.
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TestCase::LoadTestScript(kScriptChars, native_resolver);
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TransitionNativeToVM transition(thread);
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EXPECT(ClassFinalizer::ProcessPendingClasses());
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const String& name = String::Handle(String::New(TestCase::url()));
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const Library& lib = Library::Handle(Library::LookupLibrary(thread, name));
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EXPECT(!lib.IsNull());
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Class& cls =
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Class::Handle(lib.LookupClass(String::Handle(Symbols::New(thread, "A"))));
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EXPECT(!cls.IsNull());
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// Now compile the two functions 'A.foo' and 'A.moo'
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String& function_moo_name = String::Handle(String::New("moo"));
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const auto& error = cls.EnsureIsFinalized(thread);
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EXPECT(error == Error::null());
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Function& function_moo =
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Function::Handle(cls.LookupStaticFunction(function_moo_name));
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EXPECT(CompilerTest::TestCompileFunction(function_moo));
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EXPECT(function_moo.HasCode());
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String& function_foo_name = String::Handle(String::New("foo"));
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Function& function_foo =
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Function::Handle(cls.LookupStaticFunction(function_foo_name));
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EXPECT(CompilerTest::TestCompileFunction(function_foo));
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EXPECT(function_foo.HasCode());
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// Build and setup a stackmap for the call to 'func' in 'A.foo' in order
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// to test the traversal of stack maps when a GC happens.
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BitmapBuilder* stack_bitmap = new BitmapBuilder();
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EXPECT(stack_bitmap != nullptr);
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stack_bitmap->Set(0, false); // var i.
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stack_bitmap->Set(1, true); // var s1.
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stack_bitmap->Set(2, false); // var k.
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stack_bitmap->Set(3, true); // var s2.
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stack_bitmap->Set(4, true); // var s3.
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const Code& code = Code::Handle(function_foo.unoptimized_code());
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// Search for the pc of the call to 'func'.
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const PcDescriptors& descriptors =
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PcDescriptors::Handle(code.pc_descriptors());
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int call_count = 0;
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PcDescriptors::Iterator iter(descriptors,
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UntaggedPcDescriptors::kUnoptStaticCall);
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CompressedStackMapsBuilder compressed_maps_builder(thread->zone());
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while (iter.MoveNext()) {
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compressed_maps_builder.AddEntry(iter.PcOffset(), stack_bitmap, 0);
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++call_count;
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}
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// We can't easily check that we put the stackmap at the correct pc, but
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// we did if there was exactly one call seen.
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EXPECT(call_count == 1);
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const auto& compressed_maps =
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CompressedStackMaps::Handle(compressed_maps_builder.Finalize());
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code.set_compressed_stackmaps(compressed_maps);
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// Now invoke 'A.moo' and it will trigger a GC when the native function
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// is called, this should then cause the stack map of function 'A.foo'
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// to be traversed and the appropriate objects visited.
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const Object& result = Object::Handle(
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DartEntry::InvokeFunction(function_foo, Object::empty_array()));
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EXPECT(!result.IsError());
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}
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ISOLATE_UNIT_TEST_CASE(DescriptorList_TokenPositions) {
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DescriptorList* descriptors = new DescriptorList(thread->zone());
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ASSERT(descriptors != nullptr);
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const int32_t token_positions[] = {
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kMinInt32,
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5,
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13,
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13,
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13,
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13,
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31,
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23,
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23,
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23,
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33,
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33,
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5,
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5,
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TokenPosition::kMinSourcePos,
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TokenPosition::kMaxSourcePos,
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};
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const intptr_t num_token_positions = ARRAY_SIZE(token_positions);
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for (intptr_t i = 0; i < num_token_positions; i++) {
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const TokenPosition& tp = TokenPosition::Deserialize(token_positions[i]);
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descriptors->AddDescriptor(UntaggedPcDescriptors::kRuntimeCall, 0, 0, tp, 0,
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1);
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}
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const PcDescriptors& finalized_descriptors =
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PcDescriptors::Handle(descriptors->FinalizePcDescriptors(0));
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ASSERT(!finalized_descriptors.IsNull());
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PcDescriptors::Iterator it(finalized_descriptors,
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UntaggedPcDescriptors::kRuntimeCall);
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intptr_t i = 0;
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while (it.MoveNext()) {
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const TokenPosition& tp = TokenPosition::Deserialize(token_positions[i]);
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if (tp != it.TokenPos()) {
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OS::PrintErr("[%" Pd "]: Expected: %s != %s\n", i, tp.ToCString(),
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it.TokenPos().ToCString());
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}
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EXPECT(tp == it.TokenPos());
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i++;
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}
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}
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} // namespace dart
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