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Relay C++ Build Module #3082

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merged 2 commits into from
May 8, 2019
Merged

Relay C++ Build Module #3082

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6ea243a
[Relay] C++ Build module
Apr 23, 2019
bcbef83
asdf
May 3, 2019
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13 changes: 13 additions & 0 deletions include/tvm/build_module.h
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Original file line number Diff line number Diff line change
Expand Up @@ -344,6 +344,19 @@ TVM_DLL Array<LoweredFunc> lower(Schedule sch,
const std::string& name,
const std::unordered_map<Tensor, Buffer>& binds,
const BuildConfig& config);
/*!
* \brief Split host/device function and running necessary pass before build
* \param funcs The functions to be built.
* \param target The target device to build for.
* \param target_host The target for building host code. To use the default, pass Target()
* \param config The build configuration.
* \return The Array<Array<LoweredFunc>> with 2 elements. First is host function Array,
second is device function array
*/
TVM_DLL Array<Array<LoweredFunc> > split_dev_host_funcs(const Array<LoweredFunc>& funcs,
const Target& target,
const Target& target_host,
const BuildConfig& config);

/*!
* \brief Build a device and host module for a specific target from an array of lowered functions.
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19 changes: 15 additions & 4 deletions src/codegen/build_module.cc
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Expand Up @@ -422,10 +422,10 @@ Array<LoweredFunc> lower(Schedule sch,
return Array<LoweredFunc>({ ir::MakeAPI(stmt, name, out_arg_list, 0, config->restricted_func) });
}

runtime::Module build(const Array<LoweredFunc>& funcs,
const Target& target,
const Target& target_host,
const BuildConfig& config) {
Array<Array<LoweredFunc> > split_dev_host_funcs(const Array<LoweredFunc>& funcs,
const Target& target,
const Target& target_host,
const BuildConfig& config) {
std::unordered_set<std::string> all_names;
for (const auto &x : funcs) {
CHECK(all_names.count(x->name) == 0) << "Duplicate function name " << x->name;
Expand Down Expand Up @@ -492,6 +492,17 @@ runtime::Module build(const Array<LoweredFunc>& funcs,
func = ir::CombineContextCall(func);
fhost.Set(i, func);
}
return {fhost, fdevice};
}

runtime::Module build(const Array<LoweredFunc>& funcs,
const Target& target,
const Target& target_host,
const BuildConfig& config) {
auto target_host_val = target_host.defined() ? target_host : DefaultTargetHost(target);
auto host_dev_funcs = split_dev_host_funcs(funcs, target, target_host, config);
auto& fhost = host_dev_funcs[0];
auto& fdevice = host_dev_funcs[1];

auto mhost = codegen::Build(fhost, target_host_val->str());

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