8 files changed, 14 insertions, 14 deletions
diff --git a/llvm/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp b/llvm/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp
index 7acd9cc4d30..1638adfa3b9 100644
--- a/llvm/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp
+++ b/llvm/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp
@@ -44,7 +44,7 @@ class ARMAsmBackend : public MCAsmBackend {
   bool isThumbMode;     // Currently emitting Thumb code.
   bool IsLittleEndian;  // Big or little endian.
 public:
-  ARMAsmBackend(const Target &T, const StringRef TT, bool IsLittle)
+  ARMAsmBackend(const Target &T, StringRef TT, bool IsLittle)
     : MCAsmBackend(), STI(ARM_MC::createARMMCSubtargetInfo(TT, "", "")),
       isThumbMode(TT.startswith("thumb")), IsLittleEndian(IsLittle) {}
 
@@ -761,7 +761,7 @@ namespace {
 // FIXME: This should be in a separate file.
 class ARMWinCOFFAsmBackend : public ARMAsmBackend {
 public:
-  ARMWinCOFFAsmBackend(const Target &T, const StringRef &Triple)
+  ARMWinCOFFAsmBackend(const Target &T, StringRef Triple)
     : ARMAsmBackend(T, Triple, true) { }
   MCObjectWriter *createObjectWriter(raw_ostream &OS) const override {
     return createARMWinCOFFObjectWriter(OS, /*Is64Bit=*/false);
@@ -773,7 +773,7 @@ public:
 class ELFARMAsmBackend : public ARMAsmBackend {
 public:
   uint8_t OSABI;
-  ELFARMAsmBackend(const Target &T, const StringRef TT,
+  ELFARMAsmBackend(const Target &T, StringRef TT,
                    uint8_t OSABI, bool IsLittle)
     : ARMAsmBackend(T, TT, IsLittle), OSABI(OSABI) { }
 
@@ -786,7 +786,7 @@ public:
 class DarwinARMAsmBackend : public ARMAsmBackend {
 public:
   const MachO::CPUSubTypeARM Subtype;
-  DarwinARMAsmBackend(const Target &T, const StringRef TT,
+  DarwinARMAsmBackend(const Target &T, StringRef TT,
                       MachO::CPUSubTypeARM st)
     : ARMAsmBackend(T, TT, /* IsLittleEndian */ true), Subtype(st) {
       HasDataInCodeSupport = true;
diff --git a/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp b/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
index d986625cc52..b425dc8412f 100644
--- a/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
+++ b/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
@@ -2081,7 +2081,7 @@ bool MipsAsmParser::searchSymbolAlias(OperandVector &Operands) {
       return false;
     if (Expr->getKind() == MCExpr::SymbolRef) {
       const MCSymbolRefExpr *Ref = static_cast<const MCSymbolRefExpr *>(Expr);
-      const StringRef DefSymbol = Ref->getSymbol().getName();
+      StringRef DefSymbol = Ref->getSymbol().getName();
       if (DefSymbol.startswith("$")) {
         OperandMatchResultTy ResTy =
             MatchAnyRegisterNameWithoutDollar(Operands, DefSymbol.substr(1), S);
diff --git a/llvm/lib/Target/Mips/MipsISelLowering.cpp b/llvm/lib/Target/Mips/MipsISelLowering.cpp
index 368b1674b3f..c2d2da1bc8a 100644
--- a/llvm/lib/Target/Mips/MipsISelLowering.cpp
+++ b/llvm/lib/Target/Mips/MipsISelLowering.cpp
@@ -3034,7 +3034,7 @@ MipsTargetLowering::getSingleConstraintMatchWeight(
 /// that is returned indicates whether parsing was successful. The second flag
 /// is true if the numeric part exists.
 static std::pair<bool, bool>
-parsePhysicalReg(const StringRef &C, std::string &Prefix,
+parsePhysicalReg(StringRef C, std::string &Prefix,
                  unsigned long long &Reg) {
   if (C.front() != '{' || C.back() != '}')
     return std::make_pair(false, false);
@@ -3055,7 +3055,7 @@ parsePhysicalReg(const StringRef &C, std::string &Prefix,
 }
 
 std::pair<unsigned, const TargetRegisterClass *> MipsTargetLowering::
-parseRegForInlineAsmConstraint(const StringRef &C, MVT VT) const {
+parseRegForInlineAsmConstraint(StringRef C, MVT VT) const {
   const TargetRegisterInfo *TRI =
       getTargetMachine().getSubtargetImpl()->getRegisterInfo();
   const TargetRegisterClass *RC;
diff --git a/llvm/lib/Target/Mips/MipsISelLowering.h b/llvm/lib/Target/Mips/MipsISelLowering.h
index efcd306901d..7ec5b0bfebd 100644
--- a/llvm/lib/Target/Mips/MipsISelLowering.h
+++ b/llvm/lib/Target/Mips/MipsISelLowering.h
@@ -563,7 +563,7 @@ namespace llvm {
     /// This function parses registers that appear in inline-asm constraints.
     /// It returns pair (0, 0) on failure.
     std::pair<unsigned, const TargetRegisterClass *>
-    parseRegForInlineAsmConstraint(const StringRef &C, MVT VT) const;
+    parseRegForInlineAsmConstraint(StringRef C, MVT VT) const;
 
     std::pair<unsigned, const TargetRegisterClass*>
               getRegForInlineAsmConstraint(const std::string &Constraint,
diff --git a/llvm/lib/Target/Mips/MipsMachineFunction.cpp b/llvm/lib/Target/Mips/MipsMachineFunction.cpp
index bc896be4e1d..a89718af076 100644
--- a/llvm/lib/Target/Mips/MipsMachineFunction.cpp
+++ b/llvm/lib/Target/Mips/MipsMachineFunction.cpp
@@ -24,7 +24,7 @@ FixGlobalBaseReg("mips-fix-global-base-reg", cl::Hidden, cl::init(true),
                  cl::desc("Always use $gp as the global base register."));
 
 // class MipsCallEntry.
-MipsCallEntry::MipsCallEntry(const StringRef &N) {
+MipsCallEntry::MipsCallEntry(StringRef N) {
 #ifndef NDEBUG
   Name = N;
   Val = nullptr;
@@ -119,7 +119,7 @@ bool MipsFunctionInfo::isEhDataRegFI(int FI) const {
                         || FI == EhDataRegFI[2] || FI == EhDataRegFI[3]);
 }
 
-MachinePointerInfo MipsFunctionInfo::callPtrInfo(const StringRef &Name) {
+MachinePointerInfo MipsFunctionInfo::callPtrInfo(StringRef Name) {
   const MipsCallEntry *&E = ExternalCallEntries[Name];
 
   if (!E)
diff --git a/llvm/lib/Target/Mips/MipsMachineFunction.h b/llvm/lib/Target/Mips/MipsMachineFunction.h
index e5d15f94a94..217f30734b2 100644
--- a/llvm/lib/Target/Mips/MipsMachineFunction.h
+++ b/llvm/lib/Target/Mips/MipsMachineFunction.h
@@ -34,7 +34,7 @@ namespace llvm {
 /// resolved by lazy-binding.
 class MipsCallEntry : public PseudoSourceValue {
 public:
-  explicit MipsCallEntry(const StringRef &N);
+  explicit MipsCallEntry(StringRef N);
   explicit MipsCallEntry(const GlobalValue *V);
   bool isConstant(const MachineFrameInfo *) const override;
   bool isAliased(const MachineFrameInfo *) const override;
@@ -88,7 +88,7 @@ public:
 
   /// \brief Create a MachinePointerInfo that has a MipsCallEntr object
   /// representing a GOT entry for an external function.
-  MachinePointerInfo callPtrInfo(const StringRef &Name);
+  MachinePointerInfo callPtrInfo(StringRef Name);
 
   /// \brief Create a MachinePointerInfo that has a MipsCallEntr object
   /// representing a GOT entry for a global function.
diff --git a/llvm/lib/Target/NVPTX/MCTargetDesc/NVPTXMCAsmInfo.cpp b/llvm/lib/Target/NVPTX/MCTargetDesc/NVPTXMCAsmInfo.cpp
index 366341afe1b..295d03721a6 100644
--- a/llvm/lib/Target/NVPTX/MCTargetDesc/NVPTXMCAsmInfo.cpp
+++ b/llvm/lib/Target/NVPTX/MCTargetDesc/NVPTXMCAsmInfo.cpp
@@ -25,7 +25,7 @@ static cl::opt<bool> CompileForDebugging("debug-compile",
 
 void NVPTXMCAsmInfo::anchor() {}
 
-NVPTXMCAsmInfo::NVPTXMCAsmInfo(const StringRef &TT) {
+NVPTXMCAsmInfo::NVPTXMCAsmInfo(StringRef TT) {
   Triple TheTriple(TT);
   if (TheTriple.getArch() == Triple::nvptx64) {
     PointerSize = CalleeSaveStackSlotSize = 8;
diff --git a/llvm/lib/Target/NVPTX/MCTargetDesc/NVPTXMCAsmInfo.h b/llvm/lib/Target/NVPTX/MCTargetDesc/NVPTXMCAsmInfo.h
index c4141420f34..c3242866b17 100644
--- a/llvm/lib/Target/NVPTX/MCTargetDesc/NVPTXMCAsmInfo.h
+++ b/llvm/lib/Target/NVPTX/MCTargetDesc/NVPTXMCAsmInfo.h
@@ -23,7 +23,7 @@ class StringRef;
 class NVPTXMCAsmInfo : public MCAsmInfo {
   virtual void anchor();
 public:
-  explicit NVPTXMCAsmInfo(const StringRef &TT);
+  explicit NVPTXMCAsmInfo(StringRef TT);
 };
 } // namespace llvm