1 files changed, 157 insertions, 0 deletions
diff --git a/mesalib/src/util/u_atomic_test.c b/mesalib/src/util/u_atomic_test.c
new file mode 100644
index 000000000..939cfe445
--- /dev/null
+++ b/mesalib/src/util/u_atomic_test.c
@@ -0,0 +1,157 @@
+/**************************************************************************
+ *
+ * Copyright 2014 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+
+/* Force assertions, even on debug builds. */
+#undef NDEBUG
+
+
+#include <stdint.h>
+#include <inttypes.h>
+#include <assert.h>
+
+#include "u_atomic.h"
+
+
+/* Test only assignment-like operations, which are supported on all types */
+#define test_atomic_assign(type, ones) \
+   static void test_atomic_assign_##type (void) { \
+      type v, r; \
+      \
+      p_atomic_set(&v, ones); \
+      assert(v == ones && "p_atomic_set"); \
+      \
+      r = p_atomic_read(&v); \
+      assert(r == ones && "p_atomic_read"); \
+      \
+      v = ones; \
+      r = p_atomic_cmpxchg(&v, 0, 1); \
+      assert(v == ones && "p_atomic_cmpxchg"); \
+      assert(r == ones && "p_atomic_cmpxchg"); \
+      r = p_atomic_cmpxchg(&v, ones, 0); \
+      assert(v == 0 && "p_atomic_cmpxchg"); \
+      assert(r == ones && "p_atomic_cmpxchg"); \
+      \
+      (void) r; \
+   }
+
+
+/* Test arithmetic operations that are supported on 8 bits integer types */
+#define test_atomic_8bits(type, ones) \
+   test_atomic_assign(type, ones) \
+   \
+   static void test_atomic_8bits_##type (void) { \
+      type v, r; \
+      \
+      test_atomic_assign_##type(); \
+      \
+      v = 23; \
+      p_atomic_add(&v, 42); \
+      r = p_atomic_read(&v); \
+      assert(r == 65 && "p_atomic_add"); \
+      \
+      (void) r; \
+   }
+
+
+/* Test all operations */
+#define test_atomic(type, ones) \
+   test_atomic_8bits(type, ones) \
+   \
+   static void test_atomic_##type (void) { \
+      type v, r; \
+      bool b; \
+      \
+      test_atomic_8bits_##type(); \
+      \
+      v = 2; \
+      b = p_atomic_dec_zero(&v); \
+      assert(v == 1 && "p_atomic_dec_zero"); \
+      assert(b == false && "p_atomic_dec_zero"); \
+      b = p_atomic_dec_zero(&v); \
+      assert(v == 0 && "p_atomic_dec_zero"); \
+      assert(b == true && "p_atomic_dec_zero"); \
+      b = p_atomic_dec_zero(&v); \
+      assert(v == ones && "p_atomic_dec_zero"); \
+      assert(b == false && "p_atomic_dec_zero"); \
+      \
+      v = ones; \
+      p_atomic_inc(&v); \
+      assert(v == 0 && "p_atomic_inc"); \
+      \
+      v = ones; \
+      r = p_atomic_inc_return(&v); \
+      assert(v == 0 && "p_atomic_inc_return"); \
+      assert(r == v && "p_atomic_inc_return"); \
+      \
+      v = 0; \
+      p_atomic_dec(&v); \
+      assert(v == ones && "p_atomic_dec"); \
+      \
+      v = 0; \
+      r = p_atomic_dec_return(&v); \
+      assert(v == ones && "p_atomic_dec_return"); \
+      assert(r == v && "p_atomic_dec_return"); \
+      \
+      (void) r; \
+      (void) b; \
+   }
+
+
+test_atomic(int, -1)
+test_atomic(unsigned, ~0U)
+
+test_atomic(int16_t, INT16_C(-1))
+test_atomic(uint16_t, UINT16_C(0xffff))
+test_atomic(int32_t, INT32_C(-1))
+test_atomic(uint32_t, UINT32_C(0xffffffff))
+test_atomic(int64_t, INT64_C(-1))
+test_atomic(uint64_t, UINT64_C(0xffffffffffffffff))
+
+test_atomic_8bits(int8_t, INT8_C(-1))
+test_atomic_8bits(uint8_t, UINT8_C(0xff))
+test_atomic_assign(bool, true)
+
+int
+main()
+{
+   test_atomic_int();
+   test_atomic_unsigned();
+
+   test_atomic_int16_t();
+   test_atomic_uint16_t();
+   test_atomic_int32_t();
+   test_atomic_uint32_t();
+   test_atomic_int64_t();
+   test_atomic_uint64_t();
+
+   test_atomic_8bits_int8_t();
+   test_atomic_8bits_uint8_t();
+   test_atomic_assign_bool();
+
+   return 0;
+}