Subzero: Emit ARM build-attributes in the file scope (as header).

src/IceTargetLoweringARM32.h

 //===- subzero/src/IceTargetLoweringARM32.h - ARM32 lowering ----*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file declares the TargetLoweringARM32 class, which implements the
@@ skipping 306 matching lines @@
 
 protected:
   explicit TargetDataARM32(GlobalContext *Ctx);
 
 private:
   void lowerGlobal(const VariableDeclaration &Var) const;
   ~TargetDataARM32() override {}
   template <typename T> static void emitConstantPool(GlobalContext *Ctx);
 };
 
+class TargetHeaderARM32 : public TargetHeaderLowering {
+  TargetHeaderARM32() = delete;
+  TargetHeaderARM32(const TargetHeaderARM32 &) = delete;
+  TargetHeaderARM32 &operator=(const TargetHeaderARM32 &) = delete;
+
+public:
+  static TargetHeaderLowering *create(GlobalContext *Ctx) {
+    return new TargetHeaderARM32(Ctx);
+  }
+
+  void lower() final;
+
+protected:
+  explicit TargetHeaderARM32(GlobalContext *Ctx);
+
+private:
+  ~TargetHeaderARM32() final {}
+};
+
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICETARGETLOWERINGARM32_H