Generate first ARM assembler test and execute (simulate) it.

runtime/vm/unit_test.h

Index: runtime/vm/unit_test.h
===================================================================
--- runtime/vm/unit_test.h	(revision 18199)
+++ runtime/vm/unit_test.h	(working copy)
@@ -15,6 +15,7 @@
 #include "vm/longjump.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
+#include "vm/simulator.h"
 #include "vm/zone.h"
 
 // The UNIT_TEST_CASE macro is used for tests that do not need any
@@ -128,6 +129,49 @@
   }
 
 
+#if defined(TARGET_ARCH_ARM) || defined(TARGET_ARCH_MIPS)
+#if defined(HOST_ARCH_ARM) || defined(HOST_ARCH_MIPS)
+// Running on actual ARM or MIPS hardware, execute code natively.
+#define EXECUTE_TEST_CODE_INT32(name, entry) reinterpret_cast<name>(entry)()
+#define EXECUTE_TEST_CODE_INT64_LL(name, entry, long_arg0, long_arg1)          \
+    reinterpret_cast<name>(entry)(long_arg0, long_arg1)
+#define EXECUTE_TEST_CODE_FLOAT(name, entry) reinterpret_cast<name>(entry)()
+#define EXECUTE_TEST_CODE_DOUBLE(name, entry) reinterpret_cast<name>(entry)()
+#define EXECUTE_TEST_CODE_INT32_F(name, entry, float_arg)                      \
+    reinterpret_cast<name>(entry)(float_arg)
+#define EXECUTE_TEST_CODE_INT32_D(name, entry, double_arg)                     \
+    reinterpret_cast<name>(entry)(double_arg)
+#else
+// Not running on ARM or MIPS hardware, call simulator to execute code.
+#define EXECUTE_TEST_CODE_INT32(name, entry)                                   \
+  static_cast<int32_t>(Simulator::Current()->Call((int32_t)entry,              \
+      0, 0, 0, 0, 0))
+#define EXECUTE_TEST_CODE_INT64_LL(name, entry, long_arg0, long_arg1)          \
+  static_cast<int64_t>(Simulator::Current()->Call((int32_t)entry,              \
+      Utils::Low32Bits(long_arg0),                                             \
+      Utils::High32Bits(long_arg0),                                            \
+      Utils::Low32Bits(long_arg1),                                             \
+      Utils::High32Bits(long_arg1),                                            \
+      0))
+#define EXECUTE_TEST_CODE_FLOAT(name, entry)                                   \
+  bit_cast<float, int32_t>(Simulator::Current()->Call((int32_t)entry,          \
+      0, 0, 0, 0, 0))
+#define EXECUTE_TEST_CODE_DOUBLE(name, entry)                                  \
+  bit_cast<double, int64_t>(Simulator::Current()->Call((int32_t)entry,         \
+      0, 0, 0, 0, 0))
+#define EXECUTE_TEST_CODE_INT32_F(name, entry, float_arg)                      \
+  static_cast<int32_t>(Simulator::Current()->Call((int32_t)entry,              \
+      bit_cast<int32_t, float>(float_arg),                                     \
+      0, 0, 0, 0))
+#define EXECUTE_TEST_CODE_INT32_D(name, entry, double_arg)                     \
+  static_cast<int32_t>(Simulator::Current()->Call((int32_t)entry,              \
+      Utils::Low32Bits(bit_cast<int64_t, double>(double_arg)),                 \
+      Utils::High32Bits(bit_cast<int64_t, double>(double_arg)),                \
+      0, 0, 0))
+#endif  // defined(HOST_ARCH_ARM) || defined(HOST_ARCH_MIPS)
+#endif  // defined(TARGET_ARCH_ARM) || defined(TARGET_ARCH_MIPS)
+
+
 inline Dart_Handle NewString(const char* str) {
   return Dart_NewStringFromCString(str);
 }