Refactor directed test infrastructue.

- Add hierarchy.  Tests now live in directories, each with its own
  CMakeFiles.txt.  Reduces merge conflicts.
- Change make_hip_executable -> build_hip_executable.
- Refresh docs.
- Enable some tests that were previously built but not run.

Change-Id: I8c5de3c954400bf233904282b8b42861a2b7c536

tests/src/deviceLib/hipDoublePrecisionIntrinsics.cpp

@@ -0,0 +1,63 @@
+/*
+Copyright (c) 2015-2016 Advanced Micro Devices, 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, sublicense, 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 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 NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS 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.
+*/
+#include "hip_runtime.h"
+#include "test_common.h"
+
+#pragma GCC diagnostic ignored "-Wall"
+#pragma clang diagnostic ignored "-Wunused-variable"
+
+__device__ void double_precision_intrinsics()
+{
+    //__dadd_rd(0.0, 1.0);
+    //__dadd_rn(0.0, 1.0);
+    //__dadd_ru(0.0, 1.0);
+    //__dadd_rz(0.0, 1.0);
+    //__ddiv_rd(0.0, 1.0);
+    //__ddiv_rn(0.0, 1.0);
+    //__ddiv_ru(0.0, 1.0);
+    //__ddiv_rz(0.0, 1.0);
+    //__dmul_rd(1.0, 2.0);
+    //__dmul_rn(1.0, 2.0);
+    //__dmul_ru(1.0, 2.0);
+    //__dmul_rz(1.0, 2.0);
+    //__drcp_rd(2.0);
+    //__drcp_rn(2.0);
+    //__drcp_ru(2.0);
+    //__drcp_rz(2.0);
+    __dsqrt_rd(4.0);
+    __dsqrt_rn(4.0);
+    __dsqrt_ru(4.0);
+    __dsqrt_rz(4.0);
+    //__dsub_rd(2.0, 1.0);
+    //__dsub_rn(2.0, 1.0);
+    //__dsub_ru(2.0, 1.0);
+    //__dsub_rz(2.0, 1.0);
+    //__fma_rd(1.0, 2.0, 3.0);
+    //__fma_rn(1.0, 2.0, 3.0);
+    //__fma_ru(1.0, 2.0, 3.0);
+    //__fma_rz(1.0, 2.0, 3.0);
+}
+
+__global__ void compileDoublePrecisionIntrinsics(hipLaunchParm lp, int ignored)
+{
+    double_precision_intrinsics();
+}