[HIPIFY] Add device texture fetch functions support

+ Add a corresponding reverse engineered sample tex2dKernel with texture template

hipify-clang/src/CUDA2HIP.cpp

@@ -33,6 +33,7 @@ const std::map <llvm::StringRef, hipCounter> CUDA_INCLUDE_MAP{
   {"driver_types.h",            {"hip/driver_types.h",       "", CONV_INCLUDE,             API_RUNTIME}},
   {"cuda_fp16.h",               {"hip/hip_fp16.h",           "", CONV_INCLUDE,             API_RUNTIME}},
   {"cuda_texture_types.h",      {"hip/hip_texture_types.h",  "", CONV_INCLUDE,             API_RUNTIME}},
+  {"texture_fetch_functions.h", {"",                         "", CONV_INCLUDE,             API_RUNTIME}},
   {"vector_types.h",            {"hip/hip_vector_types.h",   "", CONV_INCLUDE,             API_RUNTIME}},
   {"cuda_profiler_api.h",       {"hip/hip_profile.h",        "", CONV_INCLUDE,             API_RUNTIME}},
   // cuComplex includes

hipify-clang/src/HipifyAction.cpp

@@ -189,6 +189,9 @@ bool HipifyAction::Exclude(const hipCounter & hipToken) {
       }
       return false;
     case CONV_INCLUDE:
+      if (hipToken.hipName.empty()) {
+        return true;
+      }
       switch (hipToken.apiType) {
         case API_RAND:
           if (hipToken.hipName == "hiprand_kernel.h") {

tests/hipify-clang/unit_tests/samples/2_Cookbook/11_texture_driver/tex2dKernel.cpp

@@ -0,0 +1,36 @@
+// RUN: %run_test hipify "%s" "%t" %hipify_args %clang_args
+/*
+Copyright (c) 2015-present 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.
+*/
+
+// CHECK: #include <hip/hip_runtime.h>
+#include <cuda.h>
+// CHECK-NOT: #include <texture_fetch_functions.h>
+#include <texture_fetch_functions.h>
+
+// CHECK: extern texture<float, 2, hipReadModeElementType> tex;
+extern texture<float, 2, cudaReadModeElementType> tex;
+
+extern "C" __global__ void tex2dKernel(float* outputData, int width, int height) {
+  int x = blockDim.x * blockIdx.x + threadIdx.x;
+  int y = blockDim.y * blockIdx.y + threadIdx.y;
+  outputData[y * width + x] = tex2D(tex, x, y);
+}