[HIPIFY] Disable cudaBuiltin matcher.

As HIP has started to support vanilla CUDA syntax for threadIdx, blockIdx, blockDim and gridDim.
Other CUDA builtins are not tracked for now.

hipify-clang/src/CUDA2HipMap.cpp

@@ -1461,23 +1461,6 @@ const std::map<llvm::StringRef, hipCounter> CUDA_IDENTIFIER_MAP{
     {"cudaHostRegisterMapped",   {"hipHostRegisterMapped",   CONV_MEM, API_RUNTIME}},
     {"cudaHostRegisterIoMemory", {"hipHostRegisterIoMemory", CONV_MEM, API_RUNTIME}},
 
-    // Coordinate Indexing and Dimensions
-    {"threadIdx.x", {"hipThreadIdx_x", CONV_COORD_FUNC,   API_RUNTIME}},
-    {"threadIdx.y", {"hipThreadIdx_y", CONV_COORD_FUNC,   API_RUNTIME}},
-    {"threadIdx.z", {"hipThreadIdx_z", CONV_COORD_FUNC,   API_RUNTIME}},
-
-    {"blockIdx.x",  {"hipBlockIdx_x",  CONV_COORD_FUNC,   API_RUNTIME}},
-    {"blockIdx.y",  {"hipBlockIdx_y",  CONV_COORD_FUNC,   API_RUNTIME}},
-    {"blockIdx.z",  {"hipBlockIdx_z",  CONV_COORD_FUNC,   API_RUNTIME}},
-
-    {"blockDim.x",  {"hipBlockDim_x",  CONV_COORD_FUNC,   API_RUNTIME}},
-    {"blockDim.y",  {"hipBlockDim_y",  CONV_COORD_FUNC,   API_RUNTIME}},
-    {"blockDim.z",  {"hipBlockDim_z",  CONV_COORD_FUNC,   API_RUNTIME}},
-
-    {"gridDim.x",   {"hipGridDim_x",   CONV_COORD_FUNC,   API_RUNTIME}},
-    {"gridDim.y",   {"hipGridDim_y",   CONV_COORD_FUNC,   API_RUNTIME}},
-    {"gridDim.z",   {"hipGridDim_z",   CONV_COORD_FUNC,   API_RUNTIME}},
-
     {"warpSize",    {"hipWarpSize",    CONV_SPECIAL_FUNC, API_RUNTIME}},
 
     // Events

hipify-clang/src/HipifyAction.cpp

@@ -358,6 +358,8 @@ std::unique_ptr<clang::ASTConsumer> HipifyAction::CreateASTConsumer(clang::Compi
     Finder->addMatcher(mat::cudaKernelCallExpr(mat::isExpansionInMainFile()).bind("cudaLaunchKernel"), this);
 
     // Replace cuda builtins.
+    /* Disable as HIP has started to support vanilla CUDA syntax for threadIdx, blockIdx, blockDim and gridDim. */
+    /* Other CUDA builtins are not tracked for now.
     Finder->addMatcher(
         mat::memberExpr(
             mat::isExpansionInMainFile(),
@@ -371,7 +373,7 @@ std::unique_ptr<clang::ASTConsumer> HipifyAction::CreateASTConsumer(clang::Compi
         ).bind("cudaBuiltin"),
         this
     );
-
+    */
     Finder->addMatcher(
         mat::varDecl(
             mat::isExpansionInMainFile(),
@@ -454,7 +456,7 @@ void HipifyAction::ExecuteAction() {
 }
 
 void HipifyAction::run(const clang::ast_matchers::MatchFinder::MatchResult& Result) {
-    if (cudaBuiltin(Result)) return;
+//    if (cudaBuiltin(Result)) return;
     if (cudaLaunchKernel(Result)) return;
     if (cudaSharedIncompleteArrayVar(Result)) return;
 }