Create MCTargetOptions.

For now it contains a single flag, SanitizeAddress, which enables
AddressSanitizer instrumentation of inline assembly.

Patch by Yuri Gorshenin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206971 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/CodeGen/CommandFlags.h

@@ -16,6 +16,7 @@
 #ifndef LLVM_CODEGEN_COMMANDFLAGS_H
 #define LLVM_CODEGEN_COMMANDFLAGS_H
 
+#include "llvm/MC/MCTargetOptionsCommandFlags.h"
 #include "llvm/Support/CodeGen.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Target/TargetMachine.h"
@@ -225,6 +226,9 @@ static inline TargetOptions InitTargetOptionsFromCodeGenFlags() {
   Options.TrapFuncName = TrapFuncName;
   Options.PositionIndependentExecutable = EnablePIE;
   Options.UseInitArray = UseInitArray;
+
+  Options.MCOptions = InitMCTargetOptionsFromFlags();
+
   return Options;
 }
 

include/llvm/MC/MCTargetAsmParser.h

@@ -12,14 +12,15 @@
 
 #include "llvm/MC/MCExpr.h"
 #include "llvm/MC/MCParser/MCAsmParserExtension.h"
+#include "llvm/MC/MCTargetOptions.h"
 
 namespace llvm {
-class MCStreamer;
-class StringRef;
-class SMLoc;
 class AsmToken;
-class MCParsedAsmOperand;
 class MCInst;
+class MCParsedAsmOperand;
+class MCStreamer;
+class SMLoc;
+class StringRef;
 template <typename T> class SmallVectorImpl;
 
 enum AsmRewriteKind {
@@ -97,6 +98,9 @@ protected: // Can only create subclasses.
   /// ms-style inline assembly.
   MCAsmParserSemaCallback *SemaCallback;
 
+  /// Set of options which affects instrumentation of inline assembly.
+  MCTargetOptions MCOptions;
+
 public:
   virtual ~MCTargetAsmParser();
 

include/llvm/MC/MCTargetOptions.h

@@ -0,0 +1,40 @@
+//===- MCTargetOptions.h - MC Target Options -------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_MC_MCTARGETOPTIONS_H
+#define LLVM_MC_MCTARGETOPTIONS_H
+
+namespace llvm {
+
+class MCTargetOptions {
+public:
+  enum AsmInstrumentation {
+    AsmInstrumentationNone,
+    AsmInstrumentationAddress
+  };
+
+  /// Enables AddressSanitizer instrumentation at machine level.
+  bool SanitizeAddress : 1;
+
+  MCTargetOptions();
+};
+
+inline bool operator==(const MCTargetOptions &LHS, const MCTargetOptions &RHS) {
+#define ARE_EQUAL(X) LHS.X == RHS.X
+  return ARE_EQUAL(SanitizeAddress);
+#undef ARE_EQUAL
+}
+
+inline bool operator!=(const MCTargetOptions &LHS, const MCTargetOptions &RHS) {
+  return !(LHS == RHS);
+}
+
+} // end namespace llvm
+
+#endif

include/llvm/MC/MCTargetOptionsCommandFlags.h

@@ -0,0 +1,42 @@
+//===-- MCTargetOptionsCommandFlags.h --------------------------*- 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 machine code-specific flags that are shared between
+// different command line tools.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_MC_MCTARGETOPTIONSCOMMANDFLAGS_H
+#define LLVM_MC_MCTARGETOPTIONSCOMMANDFLAGS_H
+
+#include "llvm/Support/CommandLine.h"
+#include "llvm/MC/MCTargetOptions.h"
+using namespace llvm;
+
+cl::opt<MCTargetOptions::AsmInstrumentation> AsmInstrumentation(
+    "asm-instrumentation",
+    cl::desc("Instrumentation of inline assembly and "
+             "assembly source files"),
+    cl::init(MCTargetOptions::AsmInstrumentationNone),
+    cl::values(clEnumValN(MCTargetOptions::AsmInstrumentationNone,
+                          "none",
+                          "no instrumentation at all"),
+               clEnumValN(MCTargetOptions::AsmInstrumentationAddress,
+                          "address",
+                          "instrument instructions with memory arguments"),
+               clEnumValEnd));
+
+static inline MCTargetOptions InitMCTargetOptionsFromFlags() {
+  MCTargetOptions Options;
+  Options.SanitizeAddress =
+      (AsmInstrumentation == MCTargetOptions::AsmInstrumentationAddress);
+  return Options;
+}
+
+#endif

include/llvm/Support/TargetRegistry.h

@@ -45,6 +45,7 @@ namespace llvm {
   class MCSymbolizer;
   class MCRelocationInfo;
   class MCTargetAsmParser;
+  class MCTargetOptions;
   class TargetMachine;
   class TargetOptions;
   class raw_ostream;
@@ -104,9 +105,11 @@ namespace llvm {
                                                 const MCRegisterInfo &MRI,
                                                 StringRef TT,
                                                 StringRef CPU);
-    typedef MCTargetAsmParser *(*MCAsmParserCtorTy)(MCSubtargetInfo &STI,
-                                                    MCAsmParser &P,
-                                                    const MCInstrInfo &MII);
+    typedef MCTargetAsmParser *(*MCAsmParserCtorTy)(
+        MCSubtargetInfo &STI,
+        MCAsmParser &P,
+        const MCInstrInfo &MII,
+        const MCTargetOptions &Options);
     typedef MCDisassembler *(*MCDisassemblerCtorTy)(const Target &T,
                                                     const MCSubtargetInfo &STI,
                                                     MCContext &Ctx);
@@ -362,12 +365,14 @@ namespace llvm {
     ///
     /// \param Parser The target independent parser implementation to use for
     /// parsing and lexing.
-    MCTargetAsmParser *createMCAsmParser(MCSubtargetInfo &STI,
-                                         MCAsmParser &Parser,
-                                         const MCInstrInfo &MII) const {
+    MCTargetAsmParser *createMCAsmParser(
+        MCSubtargetInfo &STI,
+        MCAsmParser &Parser,
+        const MCInstrInfo &MII,
+        const MCTargetOptions &Options) const {
       if (!MCAsmParserCtorFn)
         return nullptr;
-      return MCAsmParserCtorFn(STI, Parser, MII);
+      return MCAsmParserCtorFn(STI, Parser, MII, Options);
     }
 
     /// createAsmPrinter - Create a target specific assembly printer pass.  This
@@ -1099,8 +1104,9 @@ namespace llvm {
 
   private:
     static MCTargetAsmParser *Allocator(MCSubtargetInfo &STI, MCAsmParser &P,
-                                        const MCInstrInfo &MII) {
-      return new MCAsmParserImpl(STI, P, MII);
+                                        const MCInstrInfo &MII,
+                                        const MCTargetOptions &Options) {
+      return new MCAsmParserImpl(STI, P, MII, Options);
     }
   };
 

include/llvm/Target/TargetOptions.h

@@ -15,6 +15,7 @@
 #ifndef LLVM_TARGET_TARGETOPTIONS_H
 #define LLVM_TARGET_TARGETOPTIONS_H
 
+#include "llvm/MC/MCTargetOptions.h"
 #include <string>
 
 namespace llvm {
@@ -197,6 +198,9 @@ namespace llvm {
     /// via the llvm.fma.* intrinsic) will always be honored, regardless of
     /// the value of this option.
     FPOpFusion::FPOpFusionMode AllowFPOpFusion;
+
+    /// Machine level options.
+    MCTargetOptions MCOptions;
   };
 
 // Comparison operators:
@@ -223,7 +227,8 @@ inline bool operator==(const TargetOptions &LHS,
     ARE_EQUAL(TrapUnreachable) &&
     ARE_EQUAL(TrapFuncName) &&
     ARE_EQUAL(FloatABIType) &&
-    ARE_EQUAL(AllowFPOpFusion);
+    ARE_EQUAL(AllowFPOpFusion) &&
+    ARE_EQUAL(MCOptions);
 #undef ARE_EQUAL
 }
 

lib/CodeGen/AsmPrinter/AsmPrinterInlineAsm.cpp

@@ -15,6 +15,7 @@
 #include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/Twine.h"
 #include "llvm/CodeGen/MachineBasicBlock.h"
+#include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineModuleInfo.h"
 #include "llvm/IR/Constants.h"
 #include "llvm/IR/DataLayout.h"
@@ -135,8 +136,11 @@ void AsmPrinter::EmitInlineAsm(StringRef Str, const MDNode *LocMDNode,
   // emitInlineAsmEnd().
   MCSubtargetInfo STIOrig = *STI;
 
+  MCTargetOptions MCOptions;
+  if (MF)
+    MCOptions = MF->getTarget().Options.MCOptions;
   std::unique_ptr<MCTargetAsmParser> TAP(
-      TM.getTarget().createMCAsmParser(*STI, *Parser, *MII));
+      TM.getTarget().createMCAsmParser(*STI, *Parser, *MII, MCOptions));
   if (!TAP)
     report_fatal_error("Inline asm not supported by this streamer because"
                        " we don't have an asm parser for this target\n");

lib/LTO/LTOModule.cpp

@@ -739,7 +739,8 @@ bool LTOModule::addAsmGlobalSymbols(std::string &errMsg) {
       _target->getTargetTriple(), _target->getTargetCPU(),
       _target->getTargetFeatureString()));
   std::unique_ptr<MCTargetAsmParser> TAP(
-      T.createMCAsmParser(*STI, *Parser.get(), *MCII));
+      T.createMCAsmParser(*STI, *Parser.get(), *MCII,
+                          _target->Options.MCOptions));
   if (!TAP) {
     errMsg = "target " + std::string(T.getName()) +
       " does not define AsmParser.";

lib/MC/CMakeLists.txt

@@ -45,6 +45,7 @@ add_llvm_library(LLVMMC
   MCSubtargetInfo.cpp
   MCSymbol.cpp
   MCSymbolizer.cpp
+  MCTargetOptions.cpp
   MCValue.cpp
   MCWin64EH.cpp
   MachObjectWriter.cpp

lib/MC/MCTargetOptions.cpp

@@ -0,0 +1,16 @@
+//===- lib/MC/MCTargetOptions.cpp - MC Target Options --------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/MC/MCTargetOptions.h"
+
+namespace llvm {
+
+MCTargetOptions::MCTargetOptions() : SanitizeAddress(false) {}
+
+} // end namespace llvm

lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp

@@ -55,7 +55,8 @@ public:
   };
 
   AArch64AsmParser(MCSubtargetInfo &_STI, MCAsmParser &_Parser,
-                   const MCInstrInfo &MII)
+                   const MCInstrInfo &MII,
+                   const MCTargetOptions &Options)
       : MCTargetAsmParser(), STI(_STI), Parser(_Parser) {
     MCAsmParserExtension::Initialize(_Parser);
 

lib/Target/ARM/AsmParser/ARMAsmParser.cpp

@@ -344,7 +344,8 @@ public:
   };
 
   ARMAsmParser(MCSubtargetInfo &_STI, MCAsmParser &_Parser,
-               const MCInstrInfo &MII)
+               const MCInstrInfo &MII,
+               const MCTargetOptions &Options)
       : MCTargetAsmParser(), STI(_STI), Parser(_Parser), MII(MII), UC(_Parser) {
     MCAsmParserExtension::Initialize(_Parser);
 

lib/Target/ARM64/AsmParser/ARM64AsmParser.cpp

@@ -104,7 +104,8 @@ public:
 #include "ARM64GenAsmMatcher.inc"
   };
   ARM64AsmParser(MCSubtargetInfo &_STI, MCAsmParser &_Parser,
-                 const MCInstrInfo &MII)
+                 const MCInstrInfo &MII,
+                 const MCTargetOptions &Options)
       : MCTargetAsmParser(), STI(_STI), Parser(_Parser) {
     MCAsmParserExtension::Initialize(_Parser);
 

lib/Target/Mips/AsmParser/MipsAsmParser.cpp

@@ -229,7 +229,8 @@ class MipsAsmParser : public MCTargetAsmParser {
 
 public:
   MipsAsmParser(MCSubtargetInfo &sti, MCAsmParser &parser,
-                const MCInstrInfo &MII)
+                const MCInstrInfo &MII,
+                const MCTargetOptions &Options)
       : MCTargetAsmParser(), STI(sti), Parser(parser) {
     // Initialize the set of available features.
     setAvailableFeatures(ComputeAvailableFeatures(STI.getFeatureBits()));

lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp

@@ -264,7 +264,8 @@ class PPCAsmParser : public MCTargetAsmParser {
 
 public:
   PPCAsmParser(MCSubtargetInfo &_STI, MCAsmParser &_Parser,
-               const MCInstrInfo &_MII)
+               const MCInstrInfo &_MII,
+               const MCTargetOptions &Options)
       : MCTargetAsmParser(), STI(_STI), Parser(_Parser), MII(_MII) {
     // Check for 64-bit vs. 32-bit pointer mode.
     Triple TheTriple(STI.getTargetTriple());

lib/Target/Sparc/AsmParser/SparcAsmParser.cpp

@@ -83,7 +83,8 @@ class SparcAsmParser : public MCTargetAsmParser {
   bool is64Bit() const { return STI.getTargetTriple().startswith("sparcv9"); }
 public:
   SparcAsmParser(MCSubtargetInfo &sti, MCAsmParser &parser,
-                const MCInstrInfo &MII)
+                const MCInstrInfo &MII,
+                const MCTargetOptions &Options)
       : MCTargetAsmParser(), STI(sti), Parser(parser) {
     // Initialize the set of available features.
     setAvailableFeatures(ComputeAvailableFeatures(STI.getFeatureBits()));

lib/Target/SystemZ/AsmParser/SystemZAsmParser.cpp

@@ -331,7 +331,8 @@ private:
 
 public:
   SystemZAsmParser(MCSubtargetInfo &sti, MCAsmParser &parser,
-                   const MCInstrInfo &MII)
+                   const MCInstrInfo &MII,
+                   const MCTargetOptions &Options)
       : MCTargetAsmParser(), STI(sti), Parser(parser) {
     MCAsmParserExtension::Initialize(Parser);
 

lib/Target/TargetMachine.cpp

@@ -21,6 +21,7 @@
 #include "llvm/MC/MCAsmInfo.h"
 #include "llvm/MC/MCCodeGenInfo.h"
 #include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCTargetOptions.h"
 #include "llvm/MC/SectionKind.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Target/TargetLowering.h"
@@ -89,6 +90,8 @@ void TargetMachine::resetTargetOptions(const MachineFunction *MF) const {
   RESET_OPTION(NoNaNsFPMath, "no-nans-fp-math");
   RESET_OPTION(UseSoftFloat, "use-soft-float");
   RESET_OPTION(DisableTailCalls, "disable-tail-calls");
+
+  TO.MCOptions.SanitizeAddress = F->hasFnAttribute(Attribute::SanitizeAddress);
 }
 
 /// getRelocationModel - Returns the code generation relocation model. The

lib/Target/X86/AsmParser/X86AsmInstrumentation.cpp

@@ -11,22 +11,18 @@
 #include "X86AsmInstrumentation.h"
 #include "X86Operand.h"
 #include "llvm/ADT/StringExtras.h"
+#include "llvm/IR/Function.h"
 #include "llvm/MC/MCContext.h"
 #include "llvm/MC/MCInst.h"
 #include "llvm/MC/MCInstBuilder.h"
+#include "llvm/MC/MCParser/MCParsedAsmOperand.h"
 #include "llvm/MC/MCStreamer.h"
 #include "llvm/MC/MCSubtargetInfo.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Compiler.h"
-#include "llvm/MC/MCParser/MCParsedAsmOperand.h"
+#include "llvm/MC/MCTargetOptions.h"
 
 namespace llvm {
 namespace {
 
-static cl::opt<bool> ClAsanInstrumentInlineAssembly(
-    "asan-instrument-inline-assembly", cl::desc("instrument inline assembly"),
-    cl::Hidden, cl::init(false));
-
 bool IsStackReg(unsigned Reg) {
   return Reg == X86::RSP || Reg == X86::ESP || Reg == X86::SP;
 }
@@ -38,7 +34,7 @@ std::string FuncName(unsigned AccessSize, bool IsWrite) {
 
 class X86AddressSanitizer : public X86AsmInstrumentation {
 public:
-  X86AddressSanitizer(MCSubtargetInfo &sti) : STI(sti) {}
+  X86AddressSanitizer(const MCSubtargetInfo &STI) : STI(STI) {}
   virtual ~X86AddressSanitizer() {}
 
   // X86AsmInstrumentation implementation:
@@ -63,7 +59,7 @@ public:
   }
 
 protected:
-  MCSubtargetInfo &STI;
+  const MCSubtargetInfo &STI;
 };
 
 void X86AddressSanitizer::InstrumentMemOperand(
@@ -144,7 +140,8 @@ void X86AddressSanitizer::InstrumentMOV(
 
 class X86AddressSanitizer32 : public X86AddressSanitizer {
 public:
-  X86AddressSanitizer32(MCSubtargetInfo &sti) : X86AddressSanitizer(sti) {}
+  X86AddressSanitizer32(const MCSubtargetInfo &STI)
+      : X86AddressSanitizer(STI) {}
   virtual ~X86AddressSanitizer32() {}
 
   virtual void InstrumentMemOperandImpl(X86Operand *Op, unsigned AccessSize,
@@ -179,7 +176,8 @@ void X86AddressSanitizer32::InstrumentMemOperandImpl(
 
 class X86AddressSanitizer64 : public X86AddressSanitizer {
 public:
-  X86AddressSanitizer64(MCSubtargetInfo &sti) : X86AddressSanitizer(sti) {}
+  X86AddressSanitizer64(const MCSubtargetInfo &STI)
+      : X86AddressSanitizer(STI) {}
   virtual ~X86AddressSanitizer64() {}
 
   virtual void InstrumentMemOperandImpl(X86Operand *Op, unsigned AccessSize,
@@ -223,8 +221,10 @@ void X86AsmInstrumentation::InstrumentInstruction(
     const MCInst &Inst, SmallVectorImpl<MCParsedAsmOperand *> &Operands,
     MCContext &Ctx, MCStreamer &Out) {}
 
-X86AsmInstrumentation *CreateX86AsmInstrumentation(MCSubtargetInfo &STI) {
-  if (ClAsanInstrumentInlineAssembly) {
+X86AsmInstrumentation *
+CreateX86AsmInstrumentation(const MCTargetOptions &MCOptions, const MCContext &Ctx,
+                            const MCSubtargetInfo &STI) {
+  if (MCOptions.SanitizeAddress) {
     if ((STI.getFeatureBits() & X86::Mode32Bit) != 0)
       return new X86AddressSanitizer32(STI);
     if ((STI.getFeatureBits() & X86::Mode64Bit) != 0)

lib/Target/X86/AsmParser/X86AsmInstrumentation.h

@@ -19,10 +19,13 @@ class MCInst;
 class MCParsedAsmOperand;
 class MCStreamer;
 class MCSubtargetInfo;
+class MCTargetOptions;
 
 class X86AsmInstrumentation;
 
-X86AsmInstrumentation *CreateX86AsmInstrumentation(MCSubtargetInfo &STI);
+X86AsmInstrumentation *
+CreateX86AsmInstrumentation(const MCTargetOptions &MCOptions,
+                            const MCContext &Ctx, const MCSubtargetInfo &STI);
 
 class X86AsmInstrumentation {
 public:
@@ -36,11 +39,12 @@ public:
 
 protected:
   friend X86AsmInstrumentation *
-  CreateX86AsmInstrumentation(MCSubtargetInfo &STI);
+  CreateX86AsmInstrumentation(const MCTargetOptions &MCOptions,
+                              const MCContext &Ctx, const MCSubtargetInfo &STI);
 
   X86AsmInstrumentation();
 };
 
-}  // End llvm namespace
+} // End llvm namespace
 
-#endif  // X86_ASM_INSTRUMENTATION_H
+#endif // X86_ASM_INSTRUMENTATION_H

lib/Target/X86/AsmParser/X86AsmParser.cpp

@@ -710,13 +710,16 @@ private:
 
 public:
   X86AsmParser(MCSubtargetInfo &sti, MCAsmParser &parser,
-               const MCInstrInfo &MII)
+               const MCInstrInfo &MII,
+               const MCTargetOptions &Options)
       : MCTargetAsmParser(), STI(sti), Parser(parser), InstInfo(0) {
 
     // Initialize the set of available features.
     setAvailableFeatures(ComputeAvailableFeatures(STI.getFeatureBits()));
-    Instrumentation.reset(CreateX86AsmInstrumentation(STI));
+    Instrumentation.reset(
+        CreateX86AsmInstrumentation(Options, Parser.getContext(), STI));
   }
+
   bool ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc) override;
 
   bool

test/Instrumentation/AddressSanitizer/X86/asm_attr.ll

@@ -0,0 +1,20 @@
+; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7 -mattr=+sse2 -asm-instrumentation=address | FileCheck %s
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+; CHECK-LABEL: mov_no_attr
+; CHECK-NOT: callq __sanitizer_sanitize_load8@PLT
+; CHECK-NOT: callq __sanitizer_sanitize_store8@PLT
+define void @mov_no_attr(i64* %dst, i64* %src) {
+  tail call void asm sideeffect "movq ($1), %rax  \0A\09movq %rax, ($0)  \0A\09", "r,r,~{memory},~{rax},~{dirflag},~{fpsr},~{flags}"(i64* %dst, i64* %src)
+  ret void
+}
+
+; CHECK-LABEL: mov_sanitize
+; CHECK: callq __sanitizer_sanitize_load8@PLT
+; CHECK: callq __sanitizer_sanitize_store8@PLT
+define void @mov_sanitize(i64* %dst, i64* %src) sanitize_address {
+  tail call void asm sideeffect "movq ($1), %rax  \0A\09movq %rax, ($0)  \0A\09", "r,r,~{memory},~{rax},~{dirflag},~{fpsr},~{flags}"(i64* %dst, i64* %src)
+  ret void
+}

test/Instrumentation/AddressSanitizer/X86/asm_mov.ll

@@ -1,4 +1,4 @@
-; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7 -mattr=+sse2 -asan-instrument-inline-assembly | FileCheck %s
+; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7 -mattr=+sse2 -asm-instrumentation=address | FileCheck %s
 
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
 target triple = "x86_64-unknown-linux-gnu"
@@ -113,7 +113,7 @@ entry:
   ret void
 }
 
-attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #0 = { nounwind uwtable sanitize_address "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
 attributes #1 = { nounwind }
 
 !0 = metadata !{i32 98, i32 122, i32 160}

test/Instrumentation/AddressSanitizer/X86/asm_mov.s

@@ -1,4 +1,4 @@
-# RUN: llvm-mc %s -triple=x86_64-unknown-linux-gnu -mcpu=corei7 -mattr=+sse2 -asan-instrument-inline-assembly | FileCheck %s
+# RUN: llvm-mc %s -triple=x86_64-unknown-linux-gnu -mcpu=corei7 -mattr=+sse2 -asm-instrumentation=address | FileCheck %s
 
 	.text
 	.globl	mov1b

test/Instrumentation/AddressSanitizer/X86/asm_mov_no_instrumentation.s

@@ -20,25 +20,5 @@ mov1b:                                  # @mov1b
 	.size	mov1b, .Ltmp0-mov1b
 	.cfi_endproc
 
-	.globl	mov16b
-	.align	16, 0x90
-	.type	mov16b,@function
-# CHECK-LABEL: mov16b
-# CHECK-NOT: callq __sanitizer_sanitize_load16@PLT
-# CHECK-NOT: callq __sanitizer_sanitize_store16@PLT
-mov16b:                                 # @mov16b
-	.cfi_startproc
-# BB#0:
-	#APP
-	movaps	(%rsi), %xmm0
-	movaps	%xmm0, (%rdi)
-
-	#NO_APP
-	retq
-.Ltmp1:
-	.size	mov16b, .Ltmp1-mov16b
-	.cfi_endproc
-
-
 	.ident	"clang version 3.5 "
 	.section	".note.GNU-stack","",@progbits

tools/llvm-mc/llvm-mc.cpp

@@ -25,6 +25,7 @@
 #include "llvm/MC/MCStreamer.h"
 #include "llvm/MC/MCSubtargetInfo.h"
 #include "llvm/MC/MCTargetAsmParser.h"
+#include "llvm/MC/MCTargetOptionsCommandFlags.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Compression.h"
 #include "llvm/Support/FileUtilities.h"
@@ -320,9 +321,11 @@ static int AsLexInput(SourceMgr &SrcMgr, MCAsmInfo &MAI, tool_output_file *Out)
 static int AssembleInput(const char *ProgName, const Target *TheTarget,
                          SourceMgr &SrcMgr, MCContext &Ctx, MCStreamer &Str,
                          MCAsmInfo &MAI, MCSubtargetInfo &STI, MCInstrInfo &MCII) {
-  std::unique_ptr<MCAsmParser> Parser(createMCAsmParser(SrcMgr, Ctx, Str, MAI));
+  std::unique_ptr<MCAsmParser> Parser(
+      createMCAsmParser(SrcMgr, Ctx, Str, MAI));
   std::unique_ptr<MCTargetAsmParser> TAP(
-      TheTarget->createMCAsmParser(STI, *Parser, MCII));
+      TheTarget->createMCAsmParser(STI, *Parser, MCII,
+                                   InitMCTargetOptionsFromFlags()));
   if (!TAP) {
     errs() << ProgName
            << ": error: this target does not support assembly parsing.\n";