Implement new inline cache.

vm/ic_stubs_ia32_test.cc

Index: vm/ic_stubs_ia32_test.cc
===================================================================
--- vm/ic_stubs_ia32_test.cc	(revision 700)
+++ vm/ic_stubs_ia32_test.cc	(working copy)
@@ -1,205 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-#include "vm/globals.h"
-#if defined(TARGET_ARCH_IA32)
-
-#include "vm/assembler.h"
-#include "vm/code_index_table.h"
-#include "vm/ic_stubs.h"
-#include "vm/stub_code.h"
-#include "vm/unit_test.h"
-
-namespace dart {
-
-
-#define __ assembler->
-
-ASSEMBLER_TEST_GENERATE(NotAnIc, assembler) {
-  __ nop();
-  __ addl(EAX, Immediate(1));
-  __ ret();
-}
-
-#undef __
-
-ASSEMBLER_TEST_RUN(NotAnIc, entry) {
-  GrowableArray<const Class*> classes;
-  GrowableArray<const Function*> targets;
-  bool is_ic = ICStubs::RecognizeICStub(entry, &classes, &targets);
-  EXPECT_EQ(false, is_ic);
-  EXPECT_EQ(0, classes.length());
-  EXPECT_EQ(0, targets.length());
-}
-
-
-TEST_CASE(UnresolvedIcTest) {
-  GrowableArray<const Class*> classes;
-  GrowableArray<const Function*> targets;
-  uword entry = StubCode::CallInstanceFunctionLabel().address();
-  bool is_ic = ICStubs::RecognizeICStub(entry, &classes, &targets);
-  EXPECT_EQ(true, is_ic);
-  EXPECT_EQ(0, classes.length());
-  EXPECT_EQ(0, targets.length());
-}
-
-
-static RawFunction* GetDummyTarget(const char* name) {
-  Assembler assembler;
-  assembler.ret();
-  const Code& code =
-      Code::Handle(Code::FinalizeCode(name, &assembler));
-  const String& function_name =
-      String::ZoneHandle(String::NewSymbol(name));
-  const Function& function = Function::Handle(Function::New(
-      function_name, RawFunction::kFunction, true, false, 0));
-  function.SetCode(code);
-  CodeIndexTable* code_index_table = Isolate::Current()->code_index_table();
-  ASSERT(code_index_table != NULL);
-  code_index_table->AddFunction(function);
-  return function.raw();
-}
-
-
-TEST_CASE(SmiIcTest) {
-  const Function& function = Function::Handle(GetDummyTarget("Dummy"));
-  GrowableArray<const Class*> classes;
-  GrowableArray<const Function*> targets;
-  classes.Add(
-      &Class::ZoneHandle(Isolate::Current()->object_store()->smi_class()));
-  targets.Add(&function);
-  const Code& ic_stub =
-      Code::Handle(ICStubs::GetICStub(classes, targets));
-  ASSERT(!ic_stub.IsNull());
-  classes.Clear();
-  targets.Clear();
-  bool is_ic = ICStubs::RecognizeICStub(
-      ic_stub.EntryPoint(), &classes, &targets);
-  EXPECT_EQ(true, is_ic);
-  EXPECT(classes.length() == targets.length());
-  EXPECT_EQ(1, classes.length());
-  EXPECT(classes[0]->raw() == Isolate::Current()->object_store()->smi_class());
-  EXPECT(targets[0]->raw() == function.raw());
-}
-
-
-TEST_CASE(NonSmiIcTest) {
-  const Function& function = Function::Handle(GetDummyTarget("Dummy"));
-  GrowableArray<const Class*> classes;
-  GrowableArray<const Function*> targets;
-  classes.Add(
-      &Class::ZoneHandle(Isolate::Current()->object_store()->array_class()));
-  targets.Add(&function);
-  Code& ic_stub = Code::Handle(ICStubs::GetICStub(classes, targets));
-  ASSERT(!ic_stub.IsNull());
-  classes.Clear();
-  targets.Clear();
-  bool is_ic =
-      ICStubs::RecognizeICStub(ic_stub.EntryPoint(), &classes, &targets);
-  EXPECT_EQ(true, is_ic);
-  EXPECT(classes.length() == targets.length());
-  EXPECT_EQ(1, classes.length());
-  EXPECT(classes[0]->raw() ==
-      Isolate::Current()->object_store()->array_class());
-  EXPECT(targets[0]->raw() == function.raw());
-
-  // Also check for always-ic-miss case (e.g. with null receiver).
-  classes.Clear();
-  targets.Clear();
-  ic_stub = ICStubs::GetICStub(classes, targets);
-  EXPECT(classes.length() == targets.length());
-  EXPECT(classes.is_empty());
-}
-
-TEST_CASE(MixedIcTest) {
-  const Function& function = Function::Handle(GetDummyTarget("Dummy"));
-  GrowableArray<const Class*> classes;
-  GrowableArray<const Function*> targets;
-  classes.Add(
-      &Class::ZoneHandle(Isolate::Current()->object_store()->array_class()));
-  targets.Add(&function);
-  classes.Add(
-      &Class::ZoneHandle(Isolate::Current()->object_store()->smi_class()));
-  targets.Add(&function);
-  const Code& ic_stub = Code::Handle(ICStubs::GetICStub(classes, targets));
-  ASSERT(!ic_stub.IsNull());
-  GrowableArray<const Class*> new_classes;
-  GrowableArray<const Function*> new_targets;
-  bool is_ic = ICStubs::RecognizeICStub(
-      ic_stub.EntryPoint(), &new_classes, &new_targets);
-  EXPECT_EQ(true, is_ic);
-  EXPECT(new_classes.length() == new_targets.length());
-  EXPECT_EQ(2, new_classes.length());
-  for (int i = 0; i < classes.length(); i++) {
-    EXPECT(ICStubs::IndexOfClass(new_classes, *classes[i]) >= 0);
-    EXPECT(targets[i]->raw() == function.raw());
-  }
-}
-
-
-TEST_CASE(ManyClassesICTest) {
-  const Function& function1 = Function::Handle(GetDummyTarget("Dummy1"));
-  const Function& function2 = Function::Handle(GetDummyTarget("Dummy2"));
-  GrowableArray<const Class*> classes;
-  GrowableArray<const Function*> targets;
-  classes.Add(
-      &Class::ZoneHandle(Isolate::Current()->object_store()->array_class()));
-  targets.Add(&function1);
-  classes.Add(
-      &Class::ZoneHandle(Isolate::Current()->object_store()->double_class()));
-  targets.Add(&function1);
-  classes.Add(
-      &Class::ZoneHandle(Isolate::Current()->object_store()->bool_class()));
-  targets.Add(&function2);
-  EXPECT_EQ(3, classes.length());
-  const Code& ic_stub = Code::Handle(ICStubs::GetICStub(classes, targets));
-  ASSERT(!ic_stub.IsNull());
-  GrowableArray<const Class*> new_classes;
-  GrowableArray<const Function*> new_targets;
-  bool is_ic = ICStubs::RecognizeICStub(
-      ic_stub.EntryPoint(), &new_classes, &new_targets);
-  EXPECT_EQ(true, is_ic);
-  EXPECT(new_classes.length() == new_targets.length());
-  EXPECT_EQ(3, new_classes.length());
-  for (int i = 0; i < new_classes.length(); i++) {
-    if (new_classes[i]->raw() ==
-        Isolate::Current()->object_store()->array_class()) {
-      EXPECT_EQ(function1.raw(), new_targets[i]->raw());
-    } else if (new_classes[i]->raw() ==
-        Isolate::Current()->object_store()->double_class()) {
-      EXPECT_EQ(function1.raw(), new_targets[i]->raw());
-    } else if (new_classes[i]->raw() ==
-        Isolate::Current()->object_store()->bool_class()) {
-      EXPECT_EQ(function2.raw(), new_targets[i]->raw());
-    } else {
-      UNREACHABLE();
-    }
-  }
-  ICStubs::PatchTargets(ic_stub.EntryPoint(),
-                        Code::Handle(function1.code()).EntryPoint(),
-                        Code::Handle(function2.code()).EntryPoint());
-  is_ic = ICStubs::RecognizeICStub(
-      ic_stub.EntryPoint(), &new_classes, &new_targets);
-  EXPECT_EQ(true, is_ic);
-  EXPECT(new_classes.length() == new_targets.length());
-  EXPECT_EQ(3, new_classes.length());
-  for (int i = 0; i < new_classes.length(); i++) {
-    if (new_classes[i]->raw() ==
-        Isolate::Current()->object_store()->array_class()) {
-      EXPECT_EQ(function2.raw(), new_targets[i]->raw());
-    } else if (new_classes[i]->raw() ==
-        Isolate::Current()->object_store()->double_class()) {
-      EXPECT_EQ(function2.raw(), new_targets[i]->raw());
-    } else if (new_classes[i]->raw() ==
-        Isolate::Current()->object_store()->bool_class()) {
-      EXPECT_EQ(function2.raw(), new_targets[i]->raw());
-    } else {
-      UNREACHABLE();
-    }
-  }
-}
-
-}  // namespace dart
-
-#endif  // defined TARGET_ARCH_IA32