Code patching for ARM64.

runtime/vm/code_patcher_arm64_test.cc

Index: runtime/vm/code_patcher_arm64_test.cc
===================================================================
--- runtime/vm/code_patcher_arm64_test.cc	(revision 35070)
+++ runtime/vm/code_patcher_arm64_test.cc	(working copy)
@@ -5,6 +5,59 @@
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_ARM64)
 
-// TODO(zra): Port these tests.
+#include "vm/assembler.h"
+#include "vm/code_generator.h"
+#include "vm/code_patcher.h"
+#include "vm/dart_entry.h"
+#include "vm/instructions.h"
+#include "vm/native_entry.h"
+#include "vm/native_entry_test.h"
+#include "vm/stub_code.h"
+#include "vm/symbols.h"
+#include "vm/unit_test.h"
 
+namespace dart {
+
+#define __ assembler->
+
+ASSEMBLER_TEST_GENERATE(IcDataAccess, assembler) {
+  const String& class_name = String::Handle(Symbols::New("ownerClass"));
+  const Script& script = Script::Handle();
+  const Class& owner_class =
+      Class::Handle(Class::New(class_name, script, Scanner::kNoSourcePos));
+  const String& function_name = String::Handle(Symbols::New("callerFunction"));
+  const Function& function = Function::Handle(
+      Function::New(function_name, RawFunction::kRegularFunction,
+                    true, false, false, false, false, owner_class, 0));
+
+  const String& target_name = String::Handle(String::New("targetFunction"));
+  const Array& args_descriptor =
+      Array::Handle(ArgumentsDescriptor::New(1, Object::null_array()));
+  const ICData& ic_data = ICData::ZoneHandle(ICData::New(function,
+                                                         target_name,
+                                                         args_descriptor,
+                                                         15,
+                                                         1));
+
+  __ LoadObject(R5, ic_data, PP);
+  ExternalLabel target_label(
+      "InlineCache", StubCode::OneArgCheckInlineCacheEntryPoint());
+  __ BranchLinkPatchable(&target_label);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(IcDataAccess, test) {
+  uword return_address =
+      test->entry() + test->code().Size() - Instr::kInstrSize;
+  ICData& ic_data = ICData::Handle();
+  CodePatcher::GetInstanceCallAt(return_address, test->code(), &ic_data);
+  EXPECT_STREQ("targetFunction",
+      String::Handle(ic_data.target_name()).ToCString());
+  EXPECT_EQ(1, ic_data.num_args_tested());
+  EXPECT_EQ(0, ic_data.NumberOfChecks());
+}
+
+}  // namespace dart
+
 #endif  // defined TARGET_ARCH_ARM64