Added support of hipOccupancyMaxActiveBlocksPerMultiprocessor & hipOc… (#1240)

* Added support of hipOccupancyMaxActiveBlocksPerMultiprocessor & hipOccupancyMaxActiveBlocksPerMultiprocessorWithFlags APIs

* Taking into account of SGPR usage to determine the max active blocks in hipOccupancyMaxActiveBlocksPerMultiprocessor()

tests/src/runtimeApi/module/hipOccupancyMaxActiveBlocksPerMultiprocessor.cpp

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+/*
+Copyright (c) 2019 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.
+*/
+// Test the Grid_Launch syntax.
+
+/* HIT_START
+ * BUILD: %t %s ../../test_common.cpp EXCLUDE_HIP_PLATFORM nvcc
+ * TEST: %t
+ * HIT_END
+ */
+
+#include "hip/hip_runtime.h"
+#include "test_common.h"
+
+#define fileName "vcpy_kernel.code"
+#define kernel_name "hello_world"
+
+
+__global__ void f1(float *a) { *a = 1.0; }
+
+template <typename T>
+__global__ void f2(T *a) { *a = 1; }
+
+
+
+int main(int argc, char* argv[]) {
+
+    // test case for using kernel function pointer
+    uint32_t gridSize = 0;
+    uint32_t blockSize = 0;
+    hipOccupancyMaxPotentialBlockSize(&gridSize, &blockSize, f1, 0, 0);
+    assert(gridSize != 0 && blockSize != 0);
+
+    uint32_t numBlock = 0;
+    hipOccupancyMaxActiveBlocksPerMultiprocessor(&numBlock, f1, blockSize, 0);
+    assert(numBlock != 0);
+
+
+    // test case for using kernel function pointer with template
+    gridSize = 0;
+    blockSize = 0;
+    hipOccupancyMaxPotentialBlockSize<void(*)(int *)>(&gridSize, &blockSize, f2, 0, 0);
+    assert(gridSize != 0 && blockSize != 0);
+
+    numBlock = 0;
+    hipOccupancyMaxActiveBlocksPerMultiprocessor<void(*)(int *)>(&numBlock, f2, blockSize, 0);
+    assert(numBlock != 0);
+
+
+    // test case for using kernel with hipFunction_t type
+    numBlock = 0;
+    hipModule_t Module;
+    hipFunction_t Function;
+    HIPCHECK(hipModuleLoad(&Module, fileName));
+    HIPCHECK(hipModuleGetFunction(&Function, Module, kernel_name));
+    HIPCHECK(hipOccupancyMaxActiveBlocksPerMultiprocessor(&numBlock, Function, blockSize, 0));
+    assert(numBlock != 0);
+
+    passed();
+}