[llvm] r221503 - Use a StringRefMemoryObject. NFC.

[Eric Christopher]

Out of curiosity, where are you going with this?

-eric

On Thu Nov 06 2014 at 5:23:12 PM Rafael Espindola <
rafael.espindola at gmail.com> wrote:

> Author: rafael
> Date: Thu Nov  6 19:09:51 2014
> New Revision: 221503
>
> URL: http://llvm.org/viewvc/llvm-project?rev=221503&view=rev
> Log:
> Use a StringRefMemoryObject. NFC.
>
> Modified:
>     llvm/trunk/lib/MC/MCDisassembler/Disassembler.cpp
>
> Modified: llvm/trunk/lib/MC/MCDisassembler/Disassembler.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/
> MCDisassembler/Disassembler.cpp?rev=221503&r1=221502&r2=221503&view=diff
> ============================================================
> ==================
> --- llvm/trunk/lib/MC/MCDisassembler/Disassembler.cpp (original)
> +++ llvm/trunk/lib/MC/MCDisassembler/Disassembler.cpp Thu Nov  6 19:09:51
> 2014
> @@ -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(LLVMDisasmContext
>    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(LLVMDisasmC
>                               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;
>
>
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