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/kernel/hipLanguageExtensions.cpp

@@ -0,0 +1,130 @@
+/*
+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.
+*/
+// Collection of code to make sure that various features in the hip kernel language compile.
+
+#include <hip_runtime.h>
+#include <test_common.h>
+
+#ifdef __HCC__
+#include <amp.h>
+#endif
+
+// cudaA
+
+// Simple tests for variable type qualifiers:
+__device__ int deviceVar;
+
+// TODO-HCC __constant__ not working yet.
+__constant__ int constantVar1;
+
+__constant__ __device__ int constantVar2; 
+
+// Test HOST space:
+__host__ void foo() {
+    printf ("foo!\n");
+}
+
+__device__ __noinline__    int sum1_noinline(int a)    { return a+1;};
+__device__ __forceinline__ int sum1_forceinline(int a) { return a+1;};
+
+
+__device__ __host__ float PlusOne(float x) 
+{
+    return x + 1.0;
+}
+
+__global__ void MyKernel (const hipLaunchParm lp, const float *a, const float *b, float *c, unsigned N)
+{
+    //KERNELBEGIN;
+
+    unsigned gid = hipThreadIdx_x;
+    if (gid < N) {
+        c[gid] = a[gid] + PlusOne(b[gid]);
+    }
+
+    //KERNELEND;
+}
+
+
+void callMyKernel()
+{
+    float *a, *b, *c;
+    unsigned N;
+    const unsigned blockSize = 256;
+
+    hipLaunchKernel(MyKernel, dim3(N/blockSize), dim3(blockSize), 0, 0, a,b,c,N);
+}
+
+
+template <typename T>
+__global__ void
+vectorADD(const hipLaunchParm lp,
+          T __restrict__ *A_d,
+          T *B_d,
+          T *C_d,
+          size_t N)
+{
+//    KERNELBEGIN;
+    int ws = warpSize;
+
+
+    int zuzu = deviceVar + 1;
+
+
+    int b = hipThreadIdx_x;
+    int c;
+#ifdef NOT_YET
+    int a = __shfl_up(x, 1);
+#endif
+
+    float x;
+    float z = sin(x);
+#ifdef NOT_YET
+    float fastZ = __sin(x);
+#endif
+
+#ifdef __HCC__
+	// TODO - move to HIP atomics when ready.
+    concurrency :: atomic_fetch_add(&c, b);
+    //Concurrency::atomic_add_unsigned (&x, a);
+
+    //concurrency ::atomic_add_ (x, a);
+#endif
+
+    __syncthreads();
+
+
+    size_t offset = (hipBlockIdx_x * hipBlockDim_x + hipThreadIdx_x);
+    size_t stride = hipBlockDim_x * hipGridDim_x ;
+
+    for (size_t i=offset; i<N; i+=stride) {
+		C_d[i] = A_d[i] + B_d[i];
+	}
+
+//    KERNELEND;
+}
+
+
+int main() {
+    printf ("Hello world\n");
+    passed();
+}