From 3f4021398e14dd4b8aee4cb5b963a111b9c5cc4e Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Fri, 7 Nov 2014 01:09:51 +0000
Subject: [PATCH] Use a StringRefMemoryObject. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221503 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/MC/MCDisassembler/Disassembler.cpp | 29 +++-----------------------
 1 file changed, 3 insertions(+), 26 deletions(-)

diff --git a/lib/MC/MCDisassembler/Disassembler.cpp b/lib/MC/MCDisassembler/Disassembler.cpp
index 321b1c173a5..22095313f1c 100644
--- a/lib/MC/MCDisassembler/Disassembler.cpp
+++ b/lib/MC/MCDisassembler/Disassembler.cpp
@@ -21,7 +21,7 @@
 #include "llvm/MC/MCSymbolizer.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/FormattedStream.h"
-#include "llvm/Support/MemoryObject.h"
+#include "llvm/Support/StringRefMemoryObject.h"
 #include "llvm/Support/TargetRegistry.h"
 
 using namespace llvm;
@@ -122,30 +122,6 @@ void LLVMDisasmDispose(LLVMDisasmContextRef DCR){
   delete DC;
 }
 
-namespace {
-//
-// The memory object created by LLVMDisasmInstruction().
-//
-class DisasmMemoryObject : public MemoryObject {
-  uint8_t *Bytes;
-  uint64_t Size;
-  uint64_t BasePC;
-public:
-  DisasmMemoryObject(uint8_t *bytes, uint64_t size, uint64_t basePC) :
-                     Bytes(bytes), Size(size), BasePC(basePC) {}
-
-  uint64_t getBase() const override { return BasePC; }
-  uint64_t getExtent() const override { return Size; }
-
-  int readByte(uint64_t Addr, uint8_t *Byte) const override {
-    if (Addr - BasePC >= Size)
-      return -1;
-    *Byte = Bytes[Addr - BasePC];
-    return 0;
-  }
-};
-} // end anonymous namespace
-
 /// \brief Emits the comments that are stored in \p DC comment stream.
 /// Each comment in the comment stream must end with a newline.
 static void emitComments(LLVMDisasmContext *DC,
@@ -269,7 +245,8 @@ size_t LLVMDisasmInstruction(LLVMDisasmContextRef DCR, uint8_t *Bytes,
                              size_t OutStringSize){
   LLVMDisasmContext *DC = (LLVMDisasmContext *)DCR;
   // Wrap the pointer to the Bytes, BytesSize and PC in a MemoryObject.
-  DisasmMemoryObject MemoryObject(Bytes, BytesSize, PC);
+  StringRef Data((const char*) Bytes, BytesSize);
+  StringRefMemoryObject MemoryObject(Data, PC);
 
   uint64_t Size;
   MCInst Inst;