Revert "VM: New calling convention for generated code."

runtime/vm/instructions_ia32_test.cc

 // Copyright (c) 2012, 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/instructions.h"
 #include "vm/object.h"
 #include "vm/stub_code.h"
 #include "vm/unit_test.h"
 #include "vm/virtual_memory.h"
 
 namespace dart {
 
 #define __ assembler->
 
 ASSEMBLER_TEST_GENERATE(Call, assembler) {
-  __ call(&StubCode::InvokeDartCode_entry()->label());
+  __ Call(*StubCode::InvokeDartCode_entry());
   __ ret();
 }
 
 
 ASSEMBLER_TEST_RUN(Call, test) {
   CallPattern call(test->entry());
   EXPECT_EQ(StubCode::InvokeDartCode_entry()->EntryPoint(),
             call.TargetAddress());
 }
 
 
+ASSEMBLER_TEST_GENERATE(Jump, assembler) {
+  __ Jmp(*StubCode::InvokeDartCode_entry());
+  const ExternalLabel label(StubCode::AllocateArray_entry()->EntryPoint());
+  __ jmp(&label);
+  __ ret();
+}
+
+
+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);
+  EXPECT(status);
+  JumpPattern jump1(test->entry(), test->code());
+  EXPECT_EQ(StubCode::InvokeDartCode_entry()->EntryPoint(),
+            jump1.TargetAddress());
+  JumpPattern jump2(test->entry() + jump1.pattern_length_in_bytes(),
+                    test->code());
+  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(StubCode::InvokeDartCode_entry()->EntryPoint(),
+            jump2.TargetAddress());
+}
+
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32