[PATCH] [asan-assembly-instrumentation] Added instrumentation for REP MOVS.

[Yuri Gorshenin]

PTAL

================
Comment at: lib/Target/X86/AsmParser/X86AsmInstrumentation.cpp:181
@@ +180,3 @@
+  InstrumentMOVSImpl(AccessSize, Ctx, Out);
+  return;
+}
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Evgeniy Stepanov wrote:
> Don't really need a return here.
Done.

================
Comment at: lib/Target/X86/AsmParser/X86AsmInstrumentation.cpp:620
@@ -489,3 +619,3 @@
     const MCInst &Inst, OperandVector &Operands, MCContext &Ctx,
     const MCInstrInfo &MII, MCStreamer &Out) {}
 
----------------
Evgeniy Stepanov wrote:
> Don't you need to emit the original instruction here?
> 
Yes, I need. Fixed + fixed test.

http://reviews.llvm.org/D4719