[llvm] r203305 - Actually add the header file.

[Eric Christopher]

Author: echristo
Date: Fri Mar  7 16:43:09 2014
New Revision: 203305

URL: http://llvm.org/viewvc/llvm-project?rev=203305&view=rev
Log:
Actually add the header file.

Added:
    llvm/trunk/lib/CodeGen/AsmPrinter/ByteStreamer.h

Added: llvm/trunk/lib/CodeGen/AsmPrinter/ByteStreamer.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/ByteStreamer.h?rev=203305&view=auto
==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/ByteStreamer.h (added)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/ByteStreamer.h Fri Mar  7 16:43:09 2014
@@ -0,0 +1,69 @@
+//===-- llvm/CodeGen/ByteStreamer.h - ByteStreamer class --------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains a class that can take bytes that would normally be
+// streamed via the AsmPrinter.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CODEGEN_BYTESTREAMER_H
+#define LLVM_CODEGEN_BYTESTREAMER_H
+
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/CodeGen/AsmPrinter.h"
+#include "llvm/MC/MCStreamer.h"
+#include "DIEHash.h"
+
+namespace llvm {
+class ByteStreamer {
+ public:
+  // For now we're just handling the calls we need for dwarf emission/hashing.
+  virtual void EmitInt8(uint8_t Byte, const Twine &Comment = "") = 0;
+  virtual void EmitSLEB128(uint64_t DWord, const Twine &Comment = "") = 0;
+  virtual void EmitULEB128(uint64_t DWord, const Twine &Comment = "") = 0;
+};
+
+class APByteStreamer : public ByteStreamer {
+private:
+  AsmPrinter ≈
+
+public:
+  APByteStreamer(AsmPrinter &Asm) : AP(Asm) {}
+  void EmitInt8(uint8_t Byte, const Twine &Comment) {
+    AP.OutStreamer.AddComment(Comment);
+    AP.EmitInt8(Byte);
+  }
+  void EmitSLEB128(uint64_t DWord, const Twine &Comment) {
+    AP.OutStreamer.AddComment(Comment);
+    AP.EmitSLEB128(DWord);
+  }
+  void EmitULEB128(uint64_t DWord, const Twine &Comment) {
+    AP.OutStreamer.AddComment(Comment);
+    AP.EmitULEB128(DWord);
+  }
+};
+
+class HashingByteStreamer : public ByteStreamer {
+ private:
+  DIEHash &Hash;
+ public:
+ HashingByteStreamer(DIEHash &H) : Hash(H) {}
+  void EmitInt8(uint8_t Byte, const Twine &Comment) {
+    Hash.update(Byte);
+  }
+  void EmitSLEB128(uint64_t DWord, const Twine &Comment) {
+    Hash.addSLEB128(DWord);
+  }
+  void EmitULEB128(uint64_t DWord, const Twine &Comment) {
+    Hash.addULEB128(DWord);
+  }
+};
+}
+
+#endif