Asm instrumentation is disabled on non-Linux OSes.

[ygorshenin]

Summary

Asm instrumentation is disabled on non-Linux OSes.

[ygorshenin]

Style fix.

[eugenis]

lib/Target/X86/AsmParser/X86AsmInstrumentation.cpp

214

I don't think they will ever be fixed for all known platforms. Do something like
bool hasCompilerRTSupport=T.isOSLinux(); and remove the fixme.

[ygorshenin]

Fix.

[ygorshenin]

PTAL

lib/Target/X86/AsmParser/X86AsmInstrumentation.cpp

214

Done.

[eugenis]

LGTM

[eugenis]

r207651.

lib/Target/X86/AsmParser/X86AsmInstrumentation.cpp

 //===-- X86AsmInstrumentation.cpp - Instrument X86 inline assembly C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 
 #include "MCTargetDesc/X86BaseInfo.h"
 #include "X86AsmInstrumentation.h"
 #include "X86Operand.h"
 #include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/Triple.h"
 #include "llvm/IR/Function.h"
 #include "llvm/MC/MCContext.h"
 #include "llvm/MC/MCInst.h"
 #include "llvm/MC/MCInstBuilder.h"
 #include "llvm/MC/MCInstrInfo.h"
 #include "llvm/MC/MCParser/MCParsedAsmOperand.h"
 #include "llvm/MC/MCStreamer.h"
 #include "llvm/MC/MCSubtargetInfo.h"

 X86AsmInstrumentation::X86AsmInstrumentation() {}
 X86AsmInstrumentation::~X86AsmInstrumentation() {}
 
 void X86AsmInstrumentation::InstrumentInstruction(
     const MCInst &Inst, SmallVectorImpl<MCParsedAsmOperand *> &Operands,
     MCContext &Ctx, const MCInstrInfo &MII, MCStreamer &Out) {}
 
 X86AsmInstrumentation *
-CreateX86AsmInstrumentation(const MCTargetOptions &MCOptions, const MCContext &Ctx,
-                            const MCSubtargetInfo &STI) {
-  if (MCOptions.SanitizeAddress) {
+CreateX86AsmInstrumentation(const MCTargetOptions &MCOptions,
+                            const MCContext &Ctx, const MCSubtargetInfo &STI) {
+  Triple T(STI.getTargetTriple());
+  const bool hasCompilerRTSupport = T.isOSLinux();
+  if (hasCompilerRTSupport && MCOptions.SanitizeAddress) {
     if ((STI.getFeatureBits() & X86::Mode32Bit) != 0)
       return new X86AddressSanitizer32(STI);
     if ((STI.getFeatureBits() & X86::Mode64Bit) != 0)
       return new X86AddressSanitizer64(STI);
   }
   return new X86AsmInstrumentation();
 }
 
 } // End llvm namespace