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

runtime/vm/instructions_x64_test.cc

Index: runtime/vm/instructions_x64_test.cc
diff --git a/runtime/vm/instructions_x64_test.cc b/runtime/vm/instructions_x64_test.cc
index 3e7fb7db96a335f30749764059bd91d576a0736c..0ad829486502baee864a79a04058bf6cc7d56ac6 100644
--- a/runtime/vm/instructions_x64_test.cc
+++ b/runtime/vm/instructions_x64_test.cc
@@ -35,6 +35,34 @@ ASSEMBLER_TEST_GENERATE(Jump, assembler) {
 }
 
 
+ASSEMBLER_TEST_RUN(Jump, test) {
+  ASSERT(prologue_code_size != -1);
+  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() + prologue_code_size, test->code());
+  jump1.IsValid();
+  EXPECT_EQ(StubCode::InvokeDartCode_entry()->label().address(),
+            jump1.TargetAddress());
+  JumpPattern jump2((test->entry() +
+                     jump1.pattern_length_in_bytes() + prologue_code_size),
+                    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()->label().address(),
+            jump2.TargetAddress());
+}
+
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64