Make array allocation stub shared between isolates.

runtime/vm/instructions_arm64_test.cc

 // Copyright (c) 2014, 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_ARM64)
 
 #include "vm/assembler.h"
 #include "vm/cpu.h"
 #include "vm/instructions.h"
 #include "vm/stub_code.h"
 #include "vm/unit_test.h"
 
 namespace dart {
 
 #define __ assembler->
 
 ASSEMBLER_TEST_GENERATE(Call, assembler) {
-  StubCode* stub_code = Isolate::Current()->stub_code();
-  __ BranchLinkPatchable(&stub_code->InvokeDartCodeLabel());
+  __ BranchLinkPatchable(&StubCode::InvokeDartCodeLabel());
   __ ret();
 }
 
 
 ASSEMBLER_TEST_RUN(Call, test) {
   // The return address, which must be the address of an instruction contained
   // in the code, points to the Ret instruction above, i.e. one instruction
   // before the end of the code buffer.
   CallPattern call(test->entry() + test->code().Size() - Instr::kInstrSize,
                    test->code());
-  StubCode* stub_code = Isolate::Current()->stub_code();
-  EXPECT_EQ(stub_code->InvokeDartCodeLabel().address(),
+  EXPECT_EQ(StubCode::InvokeDartCodeLabel().address(),
             call.TargetAddress());
 }
 
 
 ASSEMBLER_TEST_GENERATE(Jump, assembler) {
-  StubCode* stub_code = Isolate::Current()->stub_code();
-  __ BranchPatchable(&stub_code->InvokeDartCodeLabel());
-  const Code& array_stub = Code::Handle(stub_code->GetAllocateArrayStub());
-  const ExternalLabel array_label(array_stub.EntryPoint());
+  __ BranchPatchable(&StubCode::InvokeDartCodeLabel());
+  const ExternalLabel array_label(StubCode::AllocateArrayEntryPoint());
   __ BranchPatchable(&array_label);
 }
 
 
 ASSEMBLER_TEST_RUN(Jump, test) {
   const Code& code = test->code();
   const Instructions& instrs = Instructions::Handle(code.instructions());
   bool status =
       VirtualMemory::Protect(reinterpret_cast<void*>(instrs.EntryPoint()),
                              instrs.size(),
                              VirtualMemory::kReadWrite);
-  StubCode* stub_code = Isolate::Current()->stub_code();
   EXPECT(status);
   JumpPattern jump1(test->entry(), test->code());
-  EXPECT_EQ(stub_code->InvokeDartCodeLabel().address(),
+  EXPECT_EQ(StubCode::InvokeDartCodeLabel().address(),
             jump1.TargetAddress());
   JumpPattern jump2(test->entry() + jump1.pattern_length_in_bytes(),
                     test->code());
-  const Code& array_stub = Code::Handle(stub_code->GetAllocateArrayStub());
+  const Code& array_stub =
+      Code::Handle(StubCode::AllocateArray_entry()->code());
   EXPECT_EQ(array_stub.EntryPoint(), jump2.TargetAddress());
   uword target1 = jump1.TargetAddress();
   uword target2 = jump2.TargetAddress();
   jump1.SetTargetAddress(target2);
   jump2.SetTargetAddress(target1);
   EXPECT_EQ(array_stub.EntryPoint(), jump1.TargetAddress());
-  EXPECT_EQ(stub_code->InvokeDartCodeLabel().address(),
+  EXPECT_EQ(StubCode::InvokeDartCodeLabel().address(),
             jump2.TargetAddress());
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM64