emit-helper-header: new pipeline

include/revng/CliftPipes/Headers.h

@@ -42,4 +42,31 @@ public:
   void run();
 };
 
+class EmitHelperHeader {
+private:
+  const model::Binary &Binary;
+  const CliftFunctionContainer &Input;
+  PTMLCBytesContainer &Output;
+
+public:
+  static constexpr llvm::StringRef Name = "emit-helper-header";
+  using Arguments = TypeList<PipeRunArgument<CliftFunctionContainer,
+                                             "Input",
+                                             "MLIR container",
+                                             Access::Read>,
+                             PipeRunArgument<PTMLCBytesContainer,
+                                             "Output",
+                                             "The helper header",
+                                             Access::Write>>;
+
+  EmitHelperHeader(const class Model &Model,
+                   llvm::StringRef Config,
+                   llvm::StringRef DynamicConfig,
+                   const CliftFunctionContainer &Input,
+                   PTMLCBytesContainer &Output) :
+    Binary(*Model.get().get()), Input(Input), Output(Output){};
+
+  void run();
+};
+
 } // namespace revng::pypeline::piperuns

lib/CliftPipes/Headers.cpp

@@ -176,4 +176,14 @@ void EmitTypeAndGlobalHeader::run() {
   emitTypeAndGlobalHeaderImpl(*Out, Input.getModule());
 }
 
+void EmitHelperHeader::run() {
+  std::unique_ptr<llvm::raw_ostream> Out = Output.getOStream(ObjectID());
+
+  std::vector<mlir::ModuleOp> FunctionModules;
+  for (const auto &Object : Input.objects())
+    FunctionModules.emplace_back(Input.getModule(Object));
+
+  emitHelperHeaderImpl(*Out, FunctionModules);
+}
+
 } // namespace revng::pypeline::piperuns

lib/Pipebox/Pipebox.cpp

@@ -135,6 +135,7 @@ static RegisterSingleOutputPipeRun<ImportTypes> P42;
 static RegisterSingleOutputPipeRun<ImportFunctionDeclarations> P43;
 static RegisterSingleOutputPipeRun<ImportSegmentDeclarations> P44;
 static RegisterSingleOutputPipeRun<EmitTypeAndGlobalHeader> P45;
+static RegisterSingleOutputPipeRun<EmitHelperHeader> P46;
 
 //
 // Analyses