areusch commented on a change in pull request #6917:
URL: https://github.com/apache/tvm/pull/6917#discussion_r529873199
##########
File path: src/target/source/codegen_c_host.cc
##########
@@ -57,6 +60,48 @@ void CodeGenCHost::AddFunction(const PrimFunc& f) {
CodeGenC::AddFunction(f);
}
+void CodeGenCHost::LinkParameters(Map<String, LinkedParam> params) {
+ PrintFuncPrefix();
+ stream << " " << tvm::runtime::symbol::tvm_lookup_linked_param
+ << "(void* args, int* arg_type_ids, int num_args, void*
out_ret_value, "
+ << "int* out_ret_tcode, void* resource_handle) {\n";
+ ICHECK_EQ(GetUniqueName(tvm::runtime::symbol::tvm_lookup_linked_param),
+ tvm::runtime::symbol::tvm_lookup_linked_param)
+ << "builtin PackedFunc name already taken: " <<
tvm::runtime::symbol::tvm_lookup_linked_param;
+ stream << " switch (((int64_t*) args)[0]) {\n"
+ << " default:\n"
+ << " out_ret_tcode[0] = " << kTVMNullptr << ";\n"
+ << " return 0;\n";
+
+ function_names_.emplace_back(tvm::runtime::symbol::tvm_lookup_linked_param);
+ for (auto kv : params) {
+ decl_stream << "\n"
+ << "#ifdef __cplusplus\n"
+ << "extern \"C\" {\n"
+ << "#endif\n"
+ << "static const ";
+ int64_t num_elements = 1;
+ for (int64_t dim : kv.second->param.Shape()) {
+ num_elements *= dim;
+ }
+ PrintType(kv.second->param.DataType(), decl_stream);
+ decl_stream << " " << ::tvm::runtime::symbol::tvm_param_prefix << kv.first
<< "["
+ << num_elements << "] = {\n";
+ NDArrayDataToC(kv.second->param, 4, decl_stream);
+ decl_stream << "};\n"
+ << "#ifdef __cplusplus\n"
+ << "} // extern \"C\"\n"
+ << "#endif\n";
+ stream << " case " << kv.second->id << ":\n"
+ << " ((uint64_t*)out_ret_value)[0] = (uint64_t) (uintptr_t) "
Review comment:
correct. ordinarily we would cast to void*, but since void* may be less
than 64 bits, we cast to uint64_t which is the largest type stored in TVMValue.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
