Imported Upstream version 5.18.0.246

Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833

external/llvm/lib/MC/MCNullStreamer.cpp

@@ -0,0 +1,45 @@
+//===- lib/MC/MCNullStreamer.cpp - Dummy Streamer Implementation ----------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/MC/MCInst.h"
+#include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCSymbol.h"
+
+using namespace llvm;
+
+namespace {
+
+  class MCNullStreamer : public MCStreamer {
+  public:
+    MCNullStreamer(MCContext &Context) : MCStreamer(Context) {}
+
+    /// @name MCStreamer Interface
+    /// @{
+
+    bool EmitSymbolAttribute(MCSymbol *Symbol,
+                             MCSymbolAttr Attribute) override {
+      return true;
+    }
+
+    void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
+                          unsigned ByteAlignment) override {}
+    void EmitZerofill(MCSection *Section, MCSymbol *Symbol = nullptr,
+                      uint64_t Size = 0, unsigned ByteAlignment = 0) override {}
+    void EmitGPRel32Value(const MCExpr *Value) override {}
+    void BeginCOFFSymbolDef(const MCSymbol *Symbol) override {}
+    void EmitCOFFSymbolStorageClass(int StorageClass) override {}
+    void EmitCOFFSymbolType(int Type) override {}
+    void EndCOFFSymbolDef() override {}
+  };
+
+}
+
+MCStreamer *llvm::createNullStreamer(MCContext &Context) {
+  return new MCNullStreamer(Context);
+}