junrushao1994 commented on a change in pull request #8802:
URL: https://github.com/apache/tvm/pull/8802#discussion_r692565459
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File path: src/relay/backend/te_compiler.cc
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@@ -875,6 +878,121 @@ LoweredModule LowerTE(const IRModule& module, TargetMap
targets, DeviceMap devic
return lowered_module;
}
+IRModule LoweredModuleToIRModule(LoweredModule mod) {
+ Map<GlobalVar, BaseFunc> unified_funcs;
+ Map<GlobalTypeVar, TypeData> unified_type_defs;
+
+ // copy main module funcs to unified funcs (what target do we need to
annotate with here?)
+ for (const auto& kv : mod.main_module->functions) {
+ const GlobalVar& var = kv.first;
+ const BaseFunc& func = kv.second;
+ ICHECK(!func->IsInstance<tir::PrimFuncNode>());
+ unified_funcs.Set(var, func);
+ }
+
+ // copy the type definitions for the main module
+ for (const auto& kv : mod.main_module->type_definitions) {
+ const GlobalTypeVar& ty_var = kv.first;
+ const TypeData& ty_data = kv.second;
+ unified_type_defs.Set(ty_var, ty_data);
+ }
+ // Move functions in per target IRModule into unified module
+ // Also move the type definitions
+ for (const auto& kv : mod.per_target_module) {
+ const String target = kv.first;
+ const IRModule target_module = kv.second;
+ // Move the per module functions, and annotate the funcs with their target
+ for (const auto& kv : target_module->functions) {
+ const GlobalVar& var = kv.first;
+ const BaseFunc& func = kv.second;
+ ICHECK(func->IsInstance<tir::PrimFuncNode>())
+ << "We expect the target_module to contain only PrimFuncs at this
point, but got "
+ << func->GetTypeKey();
+ tir::PrimFunc primFunc =
WithAttr(Downcast<tir::PrimFunc>(std::move(func)), attr::kTarget,
+ runtime::String(target));
Review comment:
Hey the `target`-to-string behavior is going to be deprecated in the
future, per this RFC:
https://discuss.tvm.apache.org/t/rfc-tvm-target-specification/6844. Is it
possible to just annotate the target object onto the function? Thanks a lot!
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