diff --git a/llvm/include/llvm/CodeGen/AsmPrinter.h b/llvm/include/llvm/CodeGen/AsmPrinter.h
index 86df511ad41f..0307f8f67298 100644
--- a/llvm/include/llvm/CodeGen/AsmPrinter.h
+++ b/llvm/include/llvm/CodeGen/AsmPrinter.h
@@ -594,16 +594,14 @@ public:
   /// specified assembler variant.  Targets should override this to format as
   /// appropriate.  This method can return true if the operand is erroneous.
   virtual bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                               unsigned AsmVariant, const char *ExtraCode,
-                               raw_ostream &OS);
+                               const char *ExtraCode, raw_ostream &OS);
 
   /// Print the specified operand of MI, an INLINEASM instruction, using the
   /// specified assembler variant as an address. Targets should override this to
   /// format as appropriate.  This method can return true if the operand is
   /// erroneous.
   virtual bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
-                                     unsigned AsmVariant, const char *ExtraCode,
-                                     raw_ostream &OS);
+                                     const char *ExtraCode, raw_ostream &OS);
 
   /// Let the target do anything it needs to do before emitting inlineasm.
   /// \p StartInfo - the subtarget info before parsing inline asm
diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinterInlineAsm.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinterInlineAsm.cpp
index e47eb86bcfe8..67dbc5a24882 100644
--- a/llvm/lib/CodeGen/AsmPrinter/AsmPrinterInlineAsm.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinterInlineAsm.cpp
@@ -169,9 +169,8 @@ void AsmPrinter::EmitInlineAsm(StringRef Str, const MCSubtargetInfo &STI,
 }
 
 static void EmitMSInlineAsmStr(const char *AsmStr, const MachineInstr *MI,
-                               MachineModuleInfo *MMI, int InlineAsmVariant,
-                               AsmPrinter *AP, unsigned LocCookie,
-                               raw_ostream &OS) {
+                               MachineModuleInfo *MMI, AsmPrinter *AP,
+                               unsigned LocCookie, raw_ostream &OS) {
   // Switch to the inline assembly variant.
   OS << "\t.intel_syntax\n\t";
 
@@ -263,11 +262,9 @@ static void EmitMSInlineAsmStr(const char *AsmStr, const MachineInstr *MI,
         ++OpNo;  // Skip over the ID number.
 
         if (InlineAsm::isMemKind(OpFlags)) {
-          Error = AP->PrintAsmMemoryOperand(MI, OpNo, InlineAsmVariant,
-                                            /*Modifier*/ nullptr, OS);
+          Error = AP->PrintAsmMemoryOperand(MI, OpNo, /*Modifier*/ nullptr, OS);
         } else {
-          Error = AP->PrintAsmOperand(MI, OpNo, InlineAsmVariant,
-                                      /*Modifier*/ nullptr, OS);
+          Error = AP->PrintAsmOperand(MI, OpNo, /*Modifier*/ nullptr, OS);
         }
       }
       if (Error) {
@@ -284,9 +281,9 @@ static void EmitMSInlineAsmStr(const char *AsmStr, const MachineInstr *MI,
 }
 
 static void EmitGCCInlineAsmStr(const char *AsmStr, const MachineInstr *MI,
-                                MachineModuleInfo *MMI, int InlineAsmVariant,
-                                int AsmPrinterVariant, AsmPrinter *AP,
-                                unsigned LocCookie, raw_ostream &OS) {
+                                MachineModuleInfo *MMI, int AsmPrinterVariant,
+                                AsmPrinter *AP, unsigned LocCookie,
+                                raw_ostream &OS) {
   int CurVariant = -1;            // The number of the {.|.|.} region we are in.
   const char *LastEmitted = AsmStr; // One past the last character emitted.
   unsigned NumOperands = MI->getNumOperands();
@@ -441,11 +438,10 @@ static void EmitGCCInlineAsmStr(const char *AsmStr, const MachineInstr *MI,
             }
           } else {
             if (InlineAsm::isMemKind(OpFlags)) {
-              Error = AP->PrintAsmMemoryOperand(MI, OpNo, InlineAsmVariant,
-                                                Modifier[0] ? Modifier : nullptr,
-                                                OS);
+              Error = AP->PrintAsmMemoryOperand(
+                  MI, OpNo, Modifier[0] ? Modifier : nullptr, OS);
             } else {
-              Error = AP->PrintAsmOperand(MI, OpNo, InlineAsmVariant,
+              Error = AP->PrintAsmOperand(MI, OpNo,
                                           Modifier[0] ? Modifier : nullptr, OS);
             }
           }
@@ -515,13 +511,11 @@ void AsmPrinter::EmitInlineAsm(const MachineInstr *MI) const {
 
   // The variant of the current asmprinter.
   int AsmPrinterVariant = MAI->getAssemblerDialect();
-  InlineAsm::AsmDialect InlineAsmVariant = MI->getInlineAsmDialect();
   AsmPrinter *AP = const_cast<AsmPrinter*>(this);
-  if (InlineAsmVariant == InlineAsm::AD_ATT)
-    EmitGCCInlineAsmStr(AsmStr, MI, MMI, InlineAsmVariant, AsmPrinterVariant,
-                        AP, LocCookie, OS);
+  if (MI->getInlineAsmDialect() == InlineAsm::AD_ATT)
+    EmitGCCInlineAsmStr(AsmStr, MI, MMI, AsmPrinterVariant, AP, LocCookie, OS);
   else
-    EmitMSInlineAsmStr(AsmStr, MI, MMI, InlineAsmVariant, AP, LocCookie, OS);
+    EmitMSInlineAsmStr(AsmStr, MI, MMI, AP, LocCookie, OS);
 
   // Emit warnings if we use reserved registers on the clobber list, as
   // that might give surprising results.
@@ -607,8 +601,7 @@ void AsmPrinter::PrintSpecial(const MachineInstr *MI, raw_ostream &OS,
 /// instruction, using the specified assembler variant.  Targets should
 /// override this to format as appropriate.
 bool AsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                                 unsigned AsmVariant, const char *ExtraCode,
-                                 raw_ostream &O) {
+                                 const char *ExtraCode, raw_ostream &O) {
   // Does this asm operand have a single letter operand modifier?
   if (ExtraCode && ExtraCode[0]) {
     if (ExtraCode[1] != 0) return true; // Unknown modifier.
@@ -638,7 +631,6 @@ bool AsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
 }
 
 bool AsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
-                                       unsigned AsmVariant,
                                        const char *ExtraCode, raw_ostream &O) {
   // Target doesn't support this yet!
   return true;
diff --git a/llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp b/llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp
index 77a2cdce5dfd..ac5bdae9f1f8 100644
--- a/llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp
+++ b/llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp
@@ -153,11 +153,9 @@ private:
                           raw_ostream &O);
 
   bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
-                       unsigned AsmVariant, const char *ExtraCode,
-                       raw_ostream &O) override;
+                       const char *ExtraCode, raw_ostream &O) override;
   bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNum,
-                             unsigned AsmVariant, const char *ExtraCode,
-                             raw_ostream &O) override;
+                             const char *ExtraCode, raw_ostream &O) override;
 
   void PrintDebugValueComment(const MachineInstr *MI, raw_ostream &OS);
 
@@ -491,12 +489,11 @@ bool AArch64AsmPrinter::printAsmRegInClass(const MachineOperand &MO,
 }
 
 bool AArch64AsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
-                                        unsigned AsmVariant,
                                         const char *ExtraCode, raw_ostream &O) {
   const MachineOperand &MO = MI->getOperand(OpNum);
 
   // First try the generic code, which knows about modifiers like 'c' and 'n'.
-  if (!AsmPrinter::PrintAsmOperand(MI, OpNum, AsmVariant, ExtraCode, O))
+  if (!AsmPrinter::PrintAsmOperand(MI, OpNum, ExtraCode, O))
     return false;
 
   // Does this asm operand have a single letter operand modifier?
@@ -508,7 +505,7 @@ bool AArch64AsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
     default:
       return true; // Unknown modifier.
     case 'a':      // Print 'a' modifier
-      PrintAsmMemoryOperand(MI, OpNum, AsmVariant, ExtraCode, O);
+      PrintAsmMemoryOperand(MI, OpNum, ExtraCode, O);
       return false;
     case 'w':      // Print W register
     case 'x':      // Print X register
@@ -575,7 +572,6 @@ bool AArch64AsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
 
 bool AArch64AsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
                                               unsigned OpNum,
-                                              unsigned AsmVariant,
                                               const char *ExtraCode,
                                               raw_ostream &O) {
   if (ExtraCode && ExtraCode[0] && ExtraCode[0] != 'a')
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp b/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
index d704a0fae0d3..ea63ae35df13 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
@@ -1122,10 +1122,9 @@ void AMDGPUAsmPrinter::getAmdKernelCode(amd_kernel_code_t &Out,
 }
 
 bool AMDGPUAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                                       unsigned AsmVariant,
                                        const char *ExtraCode, raw_ostream &O) {
   // First try the generic code, which knows about modifiers like 'c' and 'n'.
-  if (!AsmPrinter::PrintAsmOperand(MI, OpNo, AsmVariant, ExtraCode, O))
+  if (!AsmPrinter::PrintAsmOperand(MI, OpNo, ExtraCode, O))
     return false;
 
   if (ExtraCode && ExtraCode[0]) {
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.h b/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.h
index e42edf33ea8e..4d4e87a40154 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.h
+++ b/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.h
@@ -134,8 +134,7 @@ public:
     const MachineBasicBlock *MBB) const override;
 
   bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                       unsigned AsmVariant, const char *ExtraCode,
-                       raw_ostream &O) override;
+                       const char *ExtraCode, raw_ostream &O) override;
 
 protected:
   mutable std::vector<std::string> DisasmLines, HexLines;
diff --git a/llvm/lib/Target/ARM/ARMAsmPrinter.cpp b/llvm/lib/Target/ARM/ARMAsmPrinter.cpp
index 954c1077cc3d..724172cba5ea 100644
--- a/llvm/lib/Target/ARM/ARMAsmPrinter.cpp
+++ b/llvm/lib/Target/ARM/ARMAsmPrinter.cpp
@@ -255,8 +255,7 @@ GetARMJTIPICJumpTableLabel(unsigned uid) const {
 }
 
 bool ARMAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
-                                    unsigned AsmVariant, const char *ExtraCode,
-                                    raw_ostream &O) {
+                                    const char *ExtraCode, raw_ostream &O) {
   // Does this asm operand have a single letter operand modifier?
   if (ExtraCode && ExtraCode[0]) {
     if (ExtraCode[1] != 0) return true; // Unknown modifier.
@@ -264,7 +263,7 @@ bool ARMAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
     switch (ExtraCode[0]) {
     default:
       // See if this is a generic print operand
-      return AsmPrinter::PrintAsmOperand(MI, OpNum, AsmVariant, ExtraCode, O);
+      return AsmPrinter::PrintAsmOperand(MI, OpNum, ExtraCode, O);
     case 'a': // Print as a memory address.
       if (MI->getOperand(OpNum).isReg()) {
         O << "["
@@ -443,8 +442,7 @@ bool ARMAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
 }
 
 bool ARMAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
-                                          unsigned OpNum, unsigned AsmVariant,
-                                          const char *ExtraCode,
+                                          unsigned OpNum, const char *ExtraCode,
                                           raw_ostream &O) {
   // Does this asm operand have a single letter operand modifier?
   if (ExtraCode && ExtraCode[0]) {
diff --git a/llvm/lib/Target/ARM/ARMAsmPrinter.h b/llvm/lib/Target/ARM/ARMAsmPrinter.h
index 92c3a4ea5ffc..c9f24e996c1b 100644
--- a/llvm/lib/Target/ARM/ARMAsmPrinter.h
+++ b/llvm/lib/Target/ARM/ARMAsmPrinter.h
@@ -76,11 +76,9 @@ public:
   void printOperand(const MachineInstr *MI, int OpNum, raw_ostream &O);
 
   bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
-                       unsigned AsmVariant, const char *ExtraCode,
-                       raw_ostream &O) override;
+                       const char *ExtraCode, raw_ostream &O) override;
   bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNum,
-                             unsigned AsmVariant, const char *ExtraCode,
-                             raw_ostream &O) override;
+                             const char *ExtraCode, raw_ostream &O) override;
 
   void emitInlineAsmEnd(const MCSubtargetInfo &StartInfo,
                         const MCSubtargetInfo *EndInfo) const override;
diff --git a/llvm/lib/Target/AVR/AVRAsmPrinter.cpp b/llvm/lib/Target/AVR/AVRAsmPrinter.cpp
index f96f58860c77..d1a8342d9486 100644
--- a/llvm/lib/Target/AVR/AVRAsmPrinter.cpp
+++ b/llvm/lib/Target/AVR/AVRAsmPrinter.cpp
@@ -46,12 +46,10 @@ public:
                     const char *Modifier = 0);
 
   bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
-                       unsigned AsmVariant, const char *ExtraCode,
-                       raw_ostream &O) override;
+                       const char *ExtraCode, raw_ostream &O) override;
 
   bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNum,
-                             unsigned AsmVariant, const char *ExtraCode,
-                             raw_ostream &O) override;
+                             const char *ExtraCode, raw_ostream &O) override;
 
   void EmitInstruction(const MachineInstr *MI) override;
 
@@ -85,11 +83,10 @@ void AVRAsmPrinter::printOperand(const MachineInstr *MI, unsigned OpNo,
 }
 
 bool AVRAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
-                                    unsigned AsmVariant, const char *ExtraCode,
-                                    raw_ostream &O) {
+                                    const char *ExtraCode, raw_ostream &O) {
   // Default asm printer can only deal with some extra codes,
   // so try it first.
-  bool Error = AsmPrinter::PrintAsmOperand(MI, OpNum, AsmVariant, ExtraCode, O);
+  bool Error = AsmPrinter::PrintAsmOperand(MI, OpNum, ExtraCode, O);
 
   if (Error && ExtraCode && ExtraCode[0]) {
     if (ExtraCode[1] != 0)
@@ -137,8 +134,7 @@ bool AVRAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
 }
 
 bool AVRAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
-                                          unsigned OpNum, unsigned AsmVariant,
-                                          const char *ExtraCode,
+                                          unsigned OpNum, const char *ExtraCode,
                                           raw_ostream &O) {
   if (ExtraCode && ExtraCode[0]) {
     llvm_unreachable("This branch is not implemented yet");
diff --git a/llvm/lib/Target/BPF/BPFAsmPrinter.cpp b/llvm/lib/Target/BPF/BPFAsmPrinter.cpp
index ab2886682dde..5c1cd033d42d 100644
--- a/llvm/lib/Target/BPF/BPFAsmPrinter.cpp
+++ b/llvm/lib/Target/BPF/BPFAsmPrinter.cpp
@@ -43,11 +43,9 @@ public:
   bool doInitialization(Module &M) override;
   void printOperand(const MachineInstr *MI, int OpNum, raw_ostream &O);
   bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                       unsigned AsmVariant, const char *ExtraCode,
-                       raw_ostream &O) override;
+                       const char *ExtraCode, raw_ostream &O) override;
   bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNum,
-                             unsigned AsmVariant, const char *ExtraCode,
-                             raw_ostream &O) override;
+                             const char *ExtraCode, raw_ostream &O) override;
 
   void EmitInstruction(const MachineInstr *MI) override;
 };
@@ -104,7 +102,6 @@ void BPFAsmPrinter::printOperand(const MachineInstr *MI, int OpNum,
 }
 
 bool BPFAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                                    unsigned /*AsmVariant*/,
                                     const char *ExtraCode, raw_ostream &O) {
   if (ExtraCode && ExtraCode[0])
     return true; // BPF does not have special modifiers
@@ -114,8 +111,7 @@ bool BPFAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
 }
 
 bool BPFAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
-                                          unsigned OpNum, unsigned AsmVariant,
-                                          const char *ExtraCode,
+                                          unsigned OpNum, const char *ExtraCode,
                                           raw_ostream &O) {
   assert(OpNum + 1 < MI->getNumOperands() && "Insufficient operands");
   const MachineOperand &BaseMO = MI->getOperand(OpNum);
diff --git a/llvm/lib/Target/Hexagon/HexagonAsmPrinter.cpp b/llvm/lib/Target/Hexagon/HexagonAsmPrinter.cpp
index 9b3bfda66ee0..3bf76ea7944e 100644
--- a/llvm/lib/Target/Hexagon/HexagonAsmPrinter.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonAsmPrinter.cpp
@@ -113,7 +113,6 @@ bool HexagonAsmPrinter::isBlockOnlyReachableByFallthrough(
 
 /// PrintAsmOperand - Print out an operand for an inline asm expression.
 bool HexagonAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                                        unsigned AsmVariant,
                                         const char *ExtraCode,
                                         raw_ostream &OS) {
   // Does this asm operand have a single letter operand modifier?
@@ -124,7 +123,7 @@ bool HexagonAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
     switch (ExtraCode[0]) {
     default:
       // See if this is a generic print operand
-      return AsmPrinter::PrintAsmOperand(MI, OpNo, AsmVariant, ExtraCode, OS);
+      return AsmPrinter::PrintAsmOperand(MI, OpNo, ExtraCode, OS);
     case 'c': // Don't print "$" before a global var name or constant.
       // Hexagon never has a prefix.
       printOperand(MI, OpNo, OS);
@@ -160,7 +159,6 @@ bool HexagonAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
 
 bool HexagonAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
                                               unsigned OpNo,
-                                              unsigned AsmVariant,
                                               const char *ExtraCode,
                                               raw_ostream &O) {
   if (ExtraCode && ExtraCode[0])
diff --git a/llvm/lib/Target/Hexagon/HexagonAsmPrinter.h b/llvm/lib/Target/Hexagon/HexagonAsmPrinter.h
index baf0999b3012..a3301d7516a5 100644
--- a/llvm/lib/Target/Hexagon/HexagonAsmPrinter.h
+++ b/llvm/lib/Target/Hexagon/HexagonAsmPrinter.h
@@ -52,11 +52,9 @@ class TargetMachine;
 
     void printOperand(const MachineInstr *MI, unsigned OpNo, raw_ostream &O);
     bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                         unsigned AsmVariant, const char *ExtraCode,
-                         raw_ostream &OS) override;
+                         const char *ExtraCode, raw_ostream &OS) override;
     bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
-                               unsigned AsmVariant, const char *ExtraCode,
-                               raw_ostream &OS) override;
+                               const char *ExtraCode, raw_ostream &OS) override;
   };
 
 } // end namespace llvm
diff --git a/llvm/lib/Target/Lanai/LanaiAsmPrinter.cpp b/llvm/lib/Target/Lanai/LanaiAsmPrinter.cpp
index 0b849680447c..bf29c0165d20 100644
--- a/llvm/lib/Target/Lanai/LanaiAsmPrinter.cpp
+++ b/llvm/lib/Target/Lanai/LanaiAsmPrinter.cpp
@@ -48,8 +48,7 @@ public:
 
   void printOperand(const MachineInstr *MI, int OpNum, raw_ostream &O);
   bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                       unsigned AsmVariant, const char *ExtraCode,
-                       raw_ostream &O) override;
+                       const char *ExtraCode, raw_ostream &O) override;
   void EmitInstruction(const MachineInstr *MI) override;
   bool isBlockOnlyReachableByFallthrough(
       const MachineBasicBlock *MBB) const override;
@@ -108,7 +107,6 @@ void LanaiAsmPrinter::printOperand(const MachineInstr *MI, int OpNum,
 
 // PrintAsmOperand - Print out an operand for an inline asm expression.
 bool LanaiAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                                      unsigned /*AsmVariant*/,
                                       const char *ExtraCode, raw_ostream &O) {
   // Does this asm operand have a single letter operand modifier?
   if (ExtraCode && ExtraCode[0]) {
diff --git a/llvm/lib/Target/MSP430/MSP430AsmPrinter.cpp b/llvm/lib/Target/MSP430/MSP430AsmPrinter.cpp
index 4a3f58d67352..44439137f1bb 100644
--- a/llvm/lib/Target/MSP430/MSP430AsmPrinter.cpp
+++ b/llvm/lib/Target/MSP430/MSP430AsmPrinter.cpp
@@ -52,10 +52,8 @@ namespace {
     void printSrcMemOperand(const MachineInstr *MI, int OpNum,
                             raw_ostream &O);
     bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                         unsigned AsmVariant, const char *ExtraCode,
-                         raw_ostream &O) override;
-    bool PrintAsmMemoryOperand(const MachineInstr *MI,
-                               unsigned OpNo, unsigned AsmVariant,
+                         const char *ExtraCode, raw_ostream &O) override;
+    bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
                                const char *ExtraCode, raw_ostream &O) override;
     void EmitInstruction(const MachineInstr *MI) override;
 
@@ -128,7 +126,6 @@ void MSP430AsmPrinter::printSrcMemOperand(const MachineInstr *MI, int OpNum,
 /// PrintAsmOperand - Print out an operand for an inline asm expression.
 ///
 bool MSP430AsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                                       unsigned AsmVariant,
                                        const char *ExtraCode, raw_ostream &O) {
   // Does this asm operand have a single letter operand modifier?
   if (ExtraCode && ExtraCode[0])
@@ -139,7 +136,7 @@ bool MSP430AsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
 }
 
 bool MSP430AsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
-                                             unsigned OpNo, unsigned AsmVariant,
+                                             unsigned OpNo,
                                              const char *ExtraCode,
                                              raw_ostream &O) {
   if (ExtraCode && ExtraCode[0]) {
diff --git a/llvm/lib/Target/Mips/MipsAsmPrinter.cpp b/llvm/lib/Target/Mips/MipsAsmPrinter.cpp
index c523e20ab03c..b8955ecd5e34 100644
--- a/llvm/lib/Target/Mips/MipsAsmPrinter.cpp
+++ b/llvm/lib/Target/Mips/MipsAsmPrinter.cpp
@@ -510,8 +510,7 @@ bool MipsAsmPrinter::isBlockOnlyReachableByFallthrough(const MachineBasicBlock*
 
 // Print out an operand for an inline asm expression.
 bool MipsAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
-                                     unsigned AsmVariant, const char *ExtraCode,
-                                     raw_ostream &O) {
+                                     const char *ExtraCode, raw_ostream &O) {
   // Does this asm operand have a single letter operand modifier?
   if (ExtraCode && ExtraCode[0]) {
     if (ExtraCode[1] != 0) return true; // Unknown modifier.
@@ -520,7 +519,7 @@ bool MipsAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
     switch (ExtraCode[0]) {
     default:
       // See if this is a generic print operand
-      return AsmPrinter::PrintAsmOperand(MI,OpNum,AsmVariant,ExtraCode,O);
+      return AsmPrinter::PrintAsmOperand(MI, OpNum, ExtraCode, O);
     case 'X': // hex const int
       if ((MO.getType()) != MachineOperand::MO_Immediate)
         return true;
@@ -616,7 +615,7 @@ bool MipsAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
 }
 
 bool MipsAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
-                                           unsigned OpNum, unsigned AsmVariant,
+                                           unsigned OpNum,
                                            const char *ExtraCode,
                                            raw_ostream &O) {
   assert(OpNum + 1 < MI->getNumOperands() && "Insufficient operands");
diff --git a/llvm/lib/Target/Mips/MipsAsmPrinter.h b/llvm/lib/Target/Mips/MipsAsmPrinter.h
index 89d123920a02..173a1312812e 100644
--- a/llvm/lib/Target/Mips/MipsAsmPrinter.h
+++ b/llvm/lib/Target/Mips/MipsAsmPrinter.h
@@ -145,11 +145,9 @@ public:
   bool isBlockOnlyReachableByFallthrough(
                                    const MachineBasicBlock* MBB) const override;
   bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                       unsigned AsmVariant, const char *ExtraCode,
-                       raw_ostream &O) override;
+                       const char *ExtraCode, raw_ostream &O) override;
   bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNum,
-                             unsigned AsmVariant, const char *ExtraCode,
-                             raw_ostream &O) override;
+                             const char *ExtraCode, raw_ostream &O) override;
   void printOperand(const MachineInstr *MI, int opNum, raw_ostream &O);
   void printMemOperand(const MachineInstr *MI, int opNum, raw_ostream &O);
   void printMemOperandEA(const MachineInstr *MI, int opNum, raw_ostream &O);
diff --git a/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp b/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp
index 5c840e5cc7c3..68ccd581f592 100644
--- a/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp
+++ b/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp
@@ -2203,7 +2203,6 @@ void NVPTXAsmPrinter::printMCExpr(const MCExpr &Expr, raw_ostream &OS) {
 /// PrintAsmOperand - Print out an operand for an inline asm expression.
 ///
 bool NVPTXAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                                      unsigned AsmVariant,
                                       const char *ExtraCode, raw_ostream &O) {
   if (ExtraCode && ExtraCode[0]) {
     if (ExtraCode[1] != 0)
@@ -2212,7 +2211,7 @@ bool NVPTXAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
     switch (ExtraCode[0]) {
     default:
       // See if this is a generic print operand
-      return AsmPrinter::PrintAsmOperand(MI, OpNo, AsmVariant, ExtraCode, O);
+      return AsmPrinter::PrintAsmOperand(MI, OpNo, ExtraCode, O);
     case 'r':
       break;
     }
@@ -2223,9 +2222,10 @@ bool NVPTXAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
   return false;
 }
 
-bool NVPTXAsmPrinter::PrintAsmMemoryOperand(
-    const MachineInstr *MI, unsigned OpNo, unsigned AsmVariant,
-    const char *ExtraCode, raw_ostream &O) {
+bool NVPTXAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
+                                            unsigned OpNo,
+                                            const char *ExtraCode,
+                                            raw_ostream &O) {
   if (ExtraCode && ExtraCode[0])
     return true; // Unknown modifier
 
diff --git a/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.h b/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.h
index e1a876d3c6ec..8ed9cf7c355b 100644
--- a/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.h
+++ b/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.h
@@ -230,13 +230,11 @@ private:
   void printReturnValStr(const Function *, raw_ostream &O);
   void printReturnValStr(const MachineFunction &MF, raw_ostream &O);
   bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                       unsigned AsmVariant, const char *ExtraCode,
-                       raw_ostream &) override;
+                       const char *ExtraCode, raw_ostream &) override;
   void printOperand(const MachineInstr *MI, int opNum, raw_ostream &O,
                     const char *Modifier = nullptr);
   bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
-                             unsigned AsmVariant, const char *ExtraCode,
-                             raw_ostream &) override;
+                             const char *ExtraCode, raw_ostream &) override;
 
   const MCExpr *lowerConstantForGV(const Constant *CV, bool ProcessingGeneric);
   void printMCExpr(const MCExpr &Expr, raw_ostream &OS);
diff --git a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
index 79f0ad8b548e..716c4a529d0c 100644
--- a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -102,11 +102,9 @@ public:
     void printOperand(const MachineInstr *MI, unsigned OpNo, raw_ostream &O);
 
     bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                         unsigned AsmVariant, const char *ExtraCode,
-                         raw_ostream &O) override;
+                         const char *ExtraCode, raw_ostream &O) override;
     bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
-                               unsigned AsmVariant, const char *ExtraCode,
-                               raw_ostream &O) override;
+                               const char *ExtraCode, raw_ostream &O) override;
 
     void EmitEndOfAsmFile(Module &M) override;
 
@@ -224,7 +222,6 @@ void PPCAsmPrinter::printOperand(const MachineInstr *MI, unsigned OpNo,
 /// PrintAsmOperand - Print out an operand for an inline asm expression.
 ///
 bool PPCAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                                    unsigned AsmVariant,
                                     const char *ExtraCode, raw_ostream &O) {
   // Does this asm operand have a single letter operand modifier?
   if (ExtraCode && ExtraCode[0]) {
@@ -233,7 +230,7 @@ bool PPCAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
     switch (ExtraCode[0]) {
     default:
       // See if this is a generic print operand
-      return AsmPrinter::PrintAsmOperand(MI, OpNo, AsmVariant, ExtraCode, O);
+      return AsmPrinter::PrintAsmOperand(MI, OpNo, ExtraCode, O);
     case 'c': // Don't print "$" before a global var name or constant.
       break; // PPC never has a prefix.
     case 'L': // Write second word of DImode reference.
@@ -277,7 +274,6 @@ bool PPCAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
 // assembler operand.
 
 bool PPCAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
-                                          unsigned AsmVariant,
                                           const char *ExtraCode,
                                           raw_ostream &O) {
   if (ExtraCode && ExtraCode[0]) {
diff --git a/llvm/lib/Target/RISCV/RISCVAsmPrinter.cpp b/llvm/lib/Target/RISCV/RISCVAsmPrinter.cpp
index 30cbb1e9b6a7..5b4518dfd048 100644
--- a/llvm/lib/Target/RISCV/RISCVAsmPrinter.cpp
+++ b/llvm/lib/Target/RISCV/RISCVAsmPrinter.cpp
@@ -42,11 +42,9 @@ public:
   void EmitInstruction(const MachineInstr *MI) override;
 
   bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                       unsigned AsmVariant, const char *ExtraCode,
-                       raw_ostream &OS) override;
+                       const char *ExtraCode, raw_ostream &OS) override;
   bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
-                             unsigned AsmVariant, const char *ExtraCode,
-                             raw_ostream &OS) override;
+                             const char *ExtraCode, raw_ostream &OS) override;
 
   void EmitToStreamer(MCStreamer &S, const MCInst &Inst);
   bool emitPseudoExpansionLowering(MCStreamer &OutStreamer,
@@ -83,13 +81,9 @@ void RISCVAsmPrinter::EmitInstruction(const MachineInstr *MI) {
 }
 
 bool RISCVAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                                      unsigned AsmVariant,
                                       const char *ExtraCode, raw_ostream &OS) {
-  if (AsmVariant != 0)
-    report_fatal_error("There are no defined alternate asm variants");
-
   // First try the generic code, which knows about modifiers like 'c' and 'n'.
-  if (!AsmPrinter::PrintAsmOperand(MI, OpNo, AsmVariant, ExtraCode, OS))
+  if (!AsmPrinter::PrintAsmOperand(MI, OpNo, ExtraCode, OS))
     return false;
 
   if (!ExtraCode) {
@@ -110,12 +104,9 @@ bool RISCVAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
 }
 
 bool RISCVAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
-                                            unsigned OpNo, unsigned AsmVariant,
+                                            unsigned OpNo,
                                             const char *ExtraCode,
                                             raw_ostream &OS) {
-  if (AsmVariant != 0)
-    report_fatal_error("There are no defined alternate asm variants");
-
   if (!ExtraCode) {
     const MachineOperand &MO = MI->getOperand(OpNo);
     // For now, we only support register memory operands in registers and
@@ -127,7 +118,7 @@ bool RISCVAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
     return false;
   }
 
-  return AsmPrinter::PrintAsmMemoryOperand(MI, OpNo, AsmVariant, ExtraCode, OS);
+  return AsmPrinter::PrintAsmMemoryOperand(MI, OpNo, ExtraCode, OS);
 }
 
 // Force static initialization.
diff --git a/llvm/lib/Target/Sparc/SparcAsmPrinter.cpp b/llvm/lib/Target/Sparc/SparcAsmPrinter.cpp
index 2254e7bc4778..411cc81c0213 100644
--- a/llvm/lib/Target/Sparc/SparcAsmPrinter.cpp
+++ b/llvm/lib/Target/Sparc/SparcAsmPrinter.cpp
@@ -59,11 +59,9 @@ namespace {
     }
 
     bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                         unsigned AsmVariant, const char *ExtraCode,
-                         raw_ostream &O) override;
+                         const char *ExtraCode, raw_ostream &O) override;
     bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
-                               unsigned AsmVariant, const char *ExtraCode,
-                               raw_ostream &O) override;
+                               const char *ExtraCode, raw_ostream &O) override;
 
     void LowerGETPCXAndEmitMCInsts(const MachineInstr *MI,
                                    const MCSubtargetInfo &STI);
@@ -405,7 +403,6 @@ void SparcAsmPrinter::printMemOperand(const MachineInstr *MI, int opNum,
 /// PrintAsmOperand - Print out an operand for an inline asm expression.
 ///
 bool SparcAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                                      unsigned AsmVariant,
                                       const char *ExtraCode,
                                       raw_ostream &O) {
   if (ExtraCode && ExtraCode[0]) {
@@ -414,7 +411,7 @@ bool SparcAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
     switch (ExtraCode[0]) {
     default:
       // See if this is a generic print operand
-      return AsmPrinter::PrintAsmOperand(MI, OpNo, AsmVariant, ExtraCode, O);
+      return AsmPrinter::PrintAsmOperand(MI, OpNo, ExtraCode, O);
     case 'f':
     case 'r':
      break;
@@ -427,7 +424,7 @@ bool SparcAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
 }
 
 bool SparcAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
-                                            unsigned OpNo, unsigned AsmVariant,
+                                            unsigned OpNo,
                                             const char *ExtraCode,
                                             raw_ostream &O) {
   if (ExtraCode && ExtraCode[0])
diff --git a/llvm/lib/Target/SystemZ/SystemZAsmPrinter.cpp b/llvm/lib/Target/SystemZ/SystemZAsmPrinter.cpp
index 162d30f81981..2504f36fbefa 100644
--- a/llvm/lib/Target/SystemZ/SystemZAsmPrinter.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZAsmPrinter.cpp
@@ -617,9 +617,7 @@ EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV) {
   OutStreamer->EmitValue(Expr, Size);
 }
 
-bool SystemZAsmPrinter::PrintAsmOperand(const MachineInstr *MI,
-                                        unsigned OpNo,
-                                        unsigned AsmVariant,
+bool SystemZAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
                                         const char *ExtraCode,
                                         raw_ostream &OS) {
   if (ExtraCode && *ExtraCode == 'n') {
@@ -636,7 +634,6 @@ bool SystemZAsmPrinter::PrintAsmOperand(const MachineInstr *MI,
 
 bool SystemZAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
                                               unsigned OpNo,
-                                              unsigned AsmVariant,
                                               const char *ExtraCode,
                                               raw_ostream &OS) {
   SystemZInstPrinter::printAddress(MI->getOperand(OpNo).getReg(),
diff --git a/llvm/lib/Target/SystemZ/SystemZAsmPrinter.h b/llvm/lib/Target/SystemZ/SystemZAsmPrinter.h
index 434df99153c4..aa5d3ca78e61 100644
--- a/llvm/lib/Target/SystemZ/SystemZAsmPrinter.h
+++ b/llvm/lib/Target/SystemZ/SystemZAsmPrinter.h
@@ -36,11 +36,9 @@ public:
   void EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV) override;
   void EmitEndOfAsmFile(Module &M) override;
   bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                       unsigned AsmVariant, const char *ExtraCode,
-                       raw_ostream &OS) override;
+                       const char *ExtraCode, raw_ostream &OS) override;
   bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
-                             unsigned AsmVariant, const char *ExtraCode,
-                             raw_ostream &OS) override;
+                             const char *ExtraCode, raw_ostream &OS) override;
 
   bool doInitialization(Module &M) override {
     SM.reset();
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp
index 2e6de3cd9f2a..fb037b7c7b5f 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp
@@ -387,14 +387,11 @@ void WebAssemblyAsmPrinter::EmitInstruction(const MachineInstr *MI) {
 }
 
 bool WebAssemblyAsmPrinter::PrintAsmOperand(const MachineInstr *MI,
-                                            unsigned OpNo, unsigned AsmVariant,
+                                            unsigned OpNo,
                                             const char *ExtraCode,
                                             raw_ostream &OS) {
-  if (AsmVariant != 0)
-    report_fatal_error("There are no defined alternate asm variants");
-
   // First try the generic code, which knows about modifiers like 'c' and 'n'.
-  if (!AsmPrinter::PrintAsmOperand(MI, OpNo, AsmVariant, ExtraCode, OS))
+  if (!AsmPrinter::PrintAsmOperand(MI, OpNo, ExtraCode, OS))
     return false;
 
   if (!ExtraCode) {
@@ -430,19 +427,15 @@ bool WebAssemblyAsmPrinter::PrintAsmOperand(const MachineInstr *MI,
 
 bool WebAssemblyAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
                                                   unsigned OpNo,
-                                                  unsigned AsmVariant,
                                                   const char *ExtraCode,
                                                   raw_ostream &OS) {
-  if (AsmVariant != 0)
-    report_fatal_error("There are no defined alternate asm variants");
-
   // The current approach to inline asm is that "r" constraints are expressed
   // as local indices, rather than values on the operand stack. This simplifies
   // using "r" as it eliminates the need to push and pop the values in a
   // particular order, however it also makes it impossible to have an "m"
   // constraint. So we don't support it.
 
-  return AsmPrinter::PrintAsmMemoryOperand(MI, OpNo, AsmVariant, ExtraCode, OS);
+  return AsmPrinter::PrintAsmMemoryOperand(MI, OpNo, ExtraCode, OS);
 }
 
 // Force static initialization.
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.h b/llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.h
index 963bfbd0d827..4e55c81dec38 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.h
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.h
@@ -65,11 +65,9 @@ public:
   void EmitFunctionBodyStart() override;
   void EmitInstruction(const MachineInstr *MI) override;
   bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                       unsigned AsmVariant, const char *ExtraCode,
-                       raw_ostream &OS) override;
+                       const char *ExtraCode, raw_ostream &OS) override;
   bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
-                             unsigned AsmVariant, const char *ExtraCode,
-                             raw_ostream &OS) override;
+                             const char *ExtraCode, raw_ostream &OS) override;
 
   MVT getRegType(unsigned RegNo) const;
   std::string regToString(const MachineOperand &MO);
diff --git a/llvm/lib/Target/X86/X86AsmPrinter.cpp b/llvm/lib/Target/X86/X86AsmPrinter.cpp
index cd2ae8249822..e46be79eec4a 100644
--- a/llvm/lib/Target/X86/X86AsmPrinter.cpp
+++ b/llvm/lib/Target/X86/X86AsmPrinter.cpp
@@ -23,6 +23,7 @@
 #include "llvm/CodeGen/MachineModuleInfoImpls.h"
 #include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
 #include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/InlineAsm.h"
 #include "llvm/IR/Mangler.h"
 #include "llvm/IR/Module.h"
 #include "llvm/IR/Type.h"
@@ -200,7 +201,7 @@ static void printSymbolOperand(X86AsmPrinter &P, const MachineOperand &MO,
 
 static void printOperand(X86AsmPrinter &P, const MachineInstr *MI,
                          unsigned OpNo, raw_ostream &O,
-                         const char *Modifier = nullptr, unsigned AsmVariant = 0);
+                         const char *Modifier = nullptr);
 
 /// printPCRelImm - This is used to print an immediate value that ends up
 /// being encoded as a pc-relative value.  These print slightly differently, for
@@ -224,14 +225,14 @@ static void printPCRelImm(X86AsmPrinter &P, const MachineInstr *MI,
 }
 
 static void printOperand(X86AsmPrinter &P, const MachineInstr *MI,
-                         unsigned OpNo, raw_ostream &O, const char *Modifier,
-                         unsigned AsmVariant) {
+                         unsigned OpNo, raw_ostream &O, const char *Modifier) {
   const MachineOperand &MO = MI->getOperand(OpNo);
+  const bool IsATT = MI->getInlineAsmDialect() == InlineAsm::AD_ATT;
   switch (MO.getType()) {
   default: llvm_unreachable("unknown operand type!");
   case MachineOperand::MO_Register: {
-    // FIXME: Enumerating AsmVariant, so we can remove magic number.
-    if (AsmVariant == 0) O << '%';
+    if (IsATT)
+      O << '%';
     unsigned Reg = MO.getReg();
     if (Modifier && strncmp(Modifier, "subreg", strlen("subreg")) == 0) {
       unsigned Size = (strcmp(Modifier+6,"64") == 0) ? 64 :
@@ -244,12 +245,14 @@ static void printOperand(X86AsmPrinter &P, const MachineInstr *MI,
   }
 
   case MachineOperand::MO_Immediate:
-    if (AsmVariant == 0) O << '$';
+    if (IsATT)
+      O << '$';
     O << MO.getImm();
     return;
 
   case MachineOperand::MO_GlobalAddress: {
-    if (AsmVariant == 0) O << '$';
+    if (IsATT)
+      O << '$';
     printSymbolOperand(P, MO, O);
     break;
   }
@@ -327,8 +330,7 @@ static void printMemReference(X86AsmPrinter &P, const MachineInstr *MI,
 
 static void printIntelMemReference(X86AsmPrinter &P, const MachineInstr *MI,
                                    unsigned Op, raw_ostream &O,
-                                   const char *Modifier = nullptr,
-                                   unsigned AsmVariant = 1) {
+                                   const char *Modifier = nullptr) {
   const MachineOperand &BaseReg  = MI->getOperand(Op+X86::AddrBaseReg);
   unsigned ScaleVal = MI->getOperand(Op+X86::AddrScaleAmt).getImm();
   const MachineOperand &IndexReg = MI->getOperand(Op+X86::AddrIndexReg);
@@ -337,7 +339,7 @@ static void printIntelMemReference(X86AsmPrinter &P, const MachineInstr *MI,
 
   // If this has a segment register, print it.
   if (SegReg.getReg()) {
-    printOperand(P, MI, Op+X86::AddrSegmentReg, O, Modifier, AsmVariant);
+    printOperand(P, MI, Op + X86::AddrSegmentReg, O, Modifier);
     O << ':';
   }
 
@@ -345,7 +347,7 @@ static void printIntelMemReference(X86AsmPrinter &P, const MachineInstr *MI,
 
   bool NeedPlus = false;
   if (BaseReg.getReg()) {
-    printOperand(P, MI, Op+X86::AddrBaseReg, O, Modifier, AsmVariant);
+    printOperand(P, MI, Op + X86::AddrBaseReg, O, Modifier);
     NeedPlus = true;
   }
 
@@ -353,13 +355,13 @@ static void printIntelMemReference(X86AsmPrinter &P, const MachineInstr *MI,
     if (NeedPlus) O << " + ";
     if (ScaleVal != 1)
       O << ScaleVal << '*';
-    printOperand(P, MI, Op+X86::AddrIndexReg, O, Modifier, AsmVariant);
+    printOperand(P, MI, Op + X86::AddrIndexReg, O, Modifier);
     NeedPlus = true;
   }
 
   if (!DispSpec.isImm()) {
     if (NeedPlus) O << " + ";
-    printOperand(P, MI, Op+X86::AddrDisp, O, Modifier, AsmVariant);
+    printOperand(P, MI, Op + X86::AddrDisp, O, Modifier);
   } else {
     int64_t DispVal = DispSpec.getImm();
     if (DispVal || (!IndexReg.getReg() && !BaseReg.getReg())) {
@@ -422,7 +424,6 @@ static bool printAsmMRegister(X86AsmPrinter &P, const MachineOperand &MO,
 /// PrintAsmOperand - Print out an operand for an inline asm expression.
 ///
 bool X86AsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                                    unsigned AsmVariant,
                                     const char *ExtraCode, raw_ostream &O) {
   // Does this asm operand have a single letter operand modifier?
   if (ExtraCode && ExtraCode[0]) {
@@ -433,7 +434,7 @@ bool X86AsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
     switch (ExtraCode[0]) {
     default:
       // See if this is a generic print operand
-      return AsmPrinter::PrintAsmOperand(MI, OpNo, AsmVariant, ExtraCode, O);
+      return AsmPrinter::PrintAsmOperand(MI, OpNo, ExtraCode, O);
     case 'a': // This is an address.  Currently only 'i' and 'r' are expected.
       switch (MO.getType()) {
       default:
@@ -509,15 +510,14 @@ bool X86AsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
     }
   }
 
-  printOperand(*this, MI, OpNo, O, /*Modifier*/ nullptr, AsmVariant);
+  printOperand(*this, MI, OpNo, O, /*Modifier*/ nullptr);
   return false;
 }
 
-bool X86AsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
-                                          unsigned OpNo, unsigned AsmVariant,
+bool X86AsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
                                           const char *ExtraCode,
                                           raw_ostream &O) {
-  if (AsmVariant) {
+  if (MI->getInlineAsmDialect() == InlineAsm::AD_Intel) {
     printIntelMemReference(*this, MI, OpNo, O);
     return false;
   }
diff --git a/llvm/lib/Target/X86/X86AsmPrinter.h b/llvm/lib/Target/X86/X86AsmPrinter.h
index d7c8b8d3930c..ebb3b18346a6 100644
--- a/llvm/lib/Target/X86/X86AsmPrinter.h
+++ b/llvm/lib/Target/X86/X86AsmPrinter.h
@@ -123,11 +123,9 @@ public:
   }
 
   bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                       unsigned AsmVariant, const char *ExtraCode,
-                       raw_ostream &OS) override;
+                       const char *ExtraCode, raw_ostream &OS) override;
   bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
-                             unsigned AsmVariant, const char *ExtraCode,
-                             raw_ostream &OS) override;
+                             const char *ExtraCode, raw_ostream &OS) override;
 
   bool doInitialization(Module &M) override {
     SMShadowTracker.reset(0);
diff --git a/llvm/lib/Target/XCore/XCoreAsmPrinter.cpp b/llvm/lib/Target/XCore/XCoreAsmPrinter.cpp
index f13f05853641..12480740a4a4 100644
--- a/llvm/lib/Target/XCore/XCoreAsmPrinter.cpp
+++ b/llvm/lib/Target/XCore/XCoreAsmPrinter.cpp
@@ -66,11 +66,9 @@ namespace {
     }
     void printOperand(const MachineInstr *MI, int opNum, raw_ostream &O);
     bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                         unsigned AsmVariant, const char *ExtraCode,
-                         raw_ostream &O) override;
+                         const char *ExtraCode, raw_ostream &O) override;
     bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNum,
-                               unsigned AsmVariant, const char *ExtraCode,
-                               raw_ostream &O) override;
+                               const char *ExtraCode, raw_ostream &O) override;
 
     void emitArrayBound(MCSymbol *Sym, const GlobalVariable *GV);
     void EmitGlobalVariable(const GlobalVariable *GV) override;
@@ -232,8 +230,7 @@ void XCoreAsmPrinter::printOperand(const MachineInstr *MI, int opNum,
 /// PrintAsmOperand - Print out an operand for an inline asm expression.
 ///
 bool XCoreAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
-                                      unsigned AsmVariant,const char *ExtraCode,
-                                      raw_ostream &O) {
+                                      const char *ExtraCode, raw_ostream &O) {
   // Print the operand if there is no operand modifier.
   if (!ExtraCode || !ExtraCode[0]) {
     printOperand(MI, OpNo, O);
@@ -241,13 +238,13 @@ bool XCoreAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
   }
 
   // Otherwise fallback on the default implementation.
-  return AsmPrinter::PrintAsmOperand(MI, OpNo, AsmVariant, ExtraCode, O);
+  return AsmPrinter::PrintAsmOperand(MI, OpNo, ExtraCode, O);
 }
 
-bool XCoreAsmPrinter::
-PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNum,
-                      unsigned AsmVariant, const char *ExtraCode,
-                      raw_ostream &O) {
+bool XCoreAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
+                                            unsigned OpNum,
+                                            const char *ExtraCode,
+                                            raw_ostream &O) {
   if (ExtraCode && ExtraCode[0]) {
     return true; // Unknown modifier.
   }