ref: fdee7623cfaad93a56deb4c31950c9c9c7fc883e
parent: 7281c0b9086c10f1397aff9eb4b4d70e1c283369
author: hkuang <hkuang@google.com>
date: Thu Feb 27 12:55:23 EST 2014
Add neon register state check for unit test. Change-Id: I2c117ddeae3da5119f549b036a5699a8092819d3
--- a/test/register_state_check.h
+++ b/test/register_state_check.h
@@ -11,14 +11,15 @@
#ifndef TEST_REGISTER_STATE_CHECK_H_
#define TEST_REGISTER_STATE_CHECK_H_
-#ifdef _WIN64
+#include "third_party/googletest/src/include/gtest/gtest.h"
+#include "./vpx_config.h"
+#if defined(_WIN64)
+
#define _WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <winnt.h>
-#include "third_party/googletest/src/include/gtest/gtest.h"
-
namespace testing { namespace internal {@@ -81,7 +82,61 @@
} // namespace libvpx_test
-#else // !_WIN64
+#elif defined(CONFIG_SHARED) && defined(HAVE_NEON) \
+ && !CONFIG_SHARED && HAVE_NEON
+
+#include "vpx/vpx_integer.h"
+
+extern "C" {+// Save the d8-d15 registers into store.
+void vp9_push_neon(int64_t *store);
+}
+
+namespace libvpx_test {+
+// Compares the state of d8-d15 at construction with their state at
+// destruction. These registers should be preserved by the callee on
+// arm platform.
+// Usage:
+// {+// RegisterStateCheck reg_check;
+// FunctionToVerify();
+// }
+class RegisterStateCheck {+ public:
+ RegisterStateCheck() { initialized_ = StoreRegisters(pre_store_); }+ ~RegisterStateCheck() { EXPECT_TRUE(Check()); }+
+ private:
+ static bool StoreRegisters(int64_t store[8]) {+ vp9_push_neon(store);
+ return true;
+ }
+
+ // Compares the register state. Returns true if the states match.
+ bool Check() const {+ if (!initialized_) return false;
+ int64_t post_store[8];
+ vp9_push_neon(post_store);
+ for (int i = 0; i < 8; ++i) {+ EXPECT_EQ(pre_store_[i], post_store[i]) << "d"
+ << i + 8 << " has been modified";
+ }
+ return !testing::Test::HasNonfatalFailure();
+ }
+
+ bool initialized_;
+ int64_t pre_store_[8];
+};
+
+#define REGISTER_STATE_CHECK(statement) do { \+ libvpx_test::RegisterStateCheck reg_check; \
+ statement; \
+} while (false)
+
+} // namespace libvpx_test
+
+#else
namespace libvpx_test {