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[WIP]refactor: use static init instead of call_once. #672

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[WIP]refactor: use static init instead of call_once. #672

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6c1a746
[WIP]refactor: use static init instead of call_once.
deeply Sep 30, 2022
43cb14e
remove call_once in InitBladeDiscEngine
deeply Sep 30, 2022
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34 changes: 18 additions & 16 deletions pytorch_blade/src/compiler/mlir/converters/torch_mlir_op_filter.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -37,8 +37,8 @@ bool IsTorchMlirSupported(const torch::jit::Node& node) {
}

// clang-format off
const std::unordered_set<std::string> &GetTorchMlirWhiteList() {
static std::unordered_set<std::string> white_list{
std::unordered_set<std::string> CreateTorchMlirWhiteList() {
std::unordered_set<std::string> white_list{
"aten::_autocast_to_reduced_precision",
"aten::__and__",
"aten::add",
Expand Down Expand Up @@ -113,24 +113,26 @@ const std::unordered_set<std::string> &GetTorchMlirWhiteList() {
"torch_blade::fake_quant"
};

auto custom_ops = env::ReadStringFromEnvVar("TORCH_MHLO_OP_WHITE_LIST", "");
std::ostringstream ostr;
ostr << "User defined white list: [";
std::istringstream f(custom_ops);
std::string s;
for (auto s : StrSplit(custom_ops, ';')) {
white_list.insert(std::string(s));
ostr << s << ", ";
}
ostr << "]";
LOG(INFO) << ostr.str();

static std::once_flag white;
std::call_once(white, []() {
auto custom_ops = env::ReadStringFromEnvVar("TORCH_MHLO_OP_WHITE_LIST", "");
std::ostringstream ostr;
ostr << "User defined white list: [";
std::istringstream f(custom_ops);
std::string s;
for (auto s : StrSplit(custom_ops, ';')) {
white_list.insert(std::string(s));
ostr << s << ", ";
}
ostr << "]";
LOG(INFO) << ostr.str();
});
return white_list;
}
// clang-format off

const std::unordered_set<std::string> &GetTorchMlirWhiteList() {
static std::unordered_set<std::string> white_list = CreateTorchMlirWhiteList();
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Nit: Could you please link the c++ 11 standard doc reference?

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please refer to this SO answer or C++11 standard 6.7

return white_list;
}

} // namespace blade
} // namespace torch