Replace string GNU Triples with llvm::Triple in TargetMachine. NFC.

[dsanders]

Summary

For the moment, TargetMachine::getTargetTriple() still returns a StringRef.

This continues the patch series to eliminate StringRef forms of GNU triples
from the internals of LLVM that began in r239036.

[rengolin]

Comments inline.

Otherwise, LGTM. Thanks!

include/llvm/Target/TargetMachine.h

107

I'd rename this to getTripleName or something like that, to make sure we don't mix with other get Triples that actually return a triple.

This can be in a different patch, though, maybe with a FIXME comment here now.

[dsanders]

include/llvm/Target/TargetMachine.h

107

I'll put a FIXME in for now. D10381 should resolve this since it makes this function return a triple.

include/llvm/Support/TargetRegistry.h

RegisterTargetMachine(Target &T) {
     TargetRegistry::RegisterTargetMachine(T, &Allocator);
   }
 
 private:
   static TargetMachine *Allocator(const Target &T, StringRef TT, StringRef CPU,
                                   StringRef FS, const TargetOptions &Options,
                                   Reloc::Model RM, CodeModel::Model CM,
                                   CodeGenOpt::Level OL) {
-    return new TargetMachineImpl(T, TT, CPU, FS, Options, RM, CM, OL);
+    return new TargetMachineImpl(T, Triple(TT), CPU, FS, Options, RM, CM, OL);
   }
 };
 
 /// RegisterMCAsmBackend - Helper template for registering a target specific
 /// assembler backend. Usage:
 ///
 /// extern "C" void LLVMInitializeFooMCAsmBackend() {
 ///   extern Target TheFooTarget;

include/llvm/Target/TargetMachine.h

 // This file defines the TargetMachine and LLVMTargetMachine classes.
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef LLVM_TARGET_TARGETMACHINE_H
 #define LLVM_TARGET_TARGETMACHINE_H
 
 #include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/Triple.h"
 #include "llvm/IR/DataLayout.h"
 #include "llvm/Pass.h"
 #include "llvm/Support/CodeGen.h"
 #include "llvm/Target/TargetOptions.h"
 #include <cassert>
 #include <string>
 
 namespace llvm {

 /// machine.  All target-specific information should be accessible through this
 /// interface.
 ///
 class TargetMachine {
   TargetMachine(const TargetMachine &) = delete;
   void operator=(const TargetMachine &) = delete;
 protected: // Can only create subclasses.
   TargetMachine(const Target &T, StringRef DataLayoutString,
-                StringRef TargetTriple, StringRef CPU, StringRef FS,
+                const Triple &TargetTriple, StringRef CPU, StringRef FS,
                 const TargetOptions &Options);
 
   /// The Target that this machine was created for.
   const Target &TheTarget;
 
   /// For ABI type size and alignment.
   const DataLayout DL;
 
   /// Triple string, CPU name, and target feature strings the TargetMachine
   /// instance is created with.
-  std::string TargetTriple;
+  Triple TargetTriple;
   std::string TargetCPU;
   std::string TargetFS;
 
   /// Low level target information such as relocation model. Non-const to
   /// allow resetting optimization level per-function.
   MCCodeGenInfo *CodeGenInfo;
 
   /// Contains target specific asm information.
   const MCAsmInfo *AsmInfo;
 
   const MCRegisterInfo *MRI;
   const MCInstrInfo *MII;
   const MCSubtargetInfo *STI;
 
   unsigned RequireStructuredCFG : 1;
 
 public:
   mutable TargetOptions Options;
 
   virtual ~TargetMachine();
 
   const Target &getTarget() const { return TheTarget; }
 
-  StringRef getTargetTriple() const { return TargetTriple; }
+  StringRef getTargetTriple() const { return TargetTriple.str(); }
   StringRef getTargetCPU() const { return TargetCPU; }
   StringRef getTargetFeatureString() const { return TargetFS; }
 
   /// Virtual method implemented by subclasses that returns a reference to that
   /// target's TargetSubtargetInfo-derived member variable.
   virtual const TargetSubtargetInfo *getSubtargetImpl(const Function &) const {
     return nullptr;
   }

 };
 
 /// This class describes a target machine that is implemented with the LLVM
 /// target-independent code generator.
 ///
 class LLVMTargetMachine : public TargetMachine {
 protected: // Can only create subclasses.
   LLVMTargetMachine(const Target &T, StringRef DataLayoutString,
-                    StringRef TargetTriple, StringRef CPU, StringRef FS,
+                    const Triple &TargetTriple, StringRef CPU, StringRef FS,
                     TargetOptions Options, Reloc::Model RM, CodeModel::Model CM,
                     CodeGenOpt::Level OL);
 
   void initAsmInfo();
 public:
   /// \brief Get a TargetIRAnalysis implementation for the target.
   ///
   /// This analysis will produce a TTI result which uses the common code

lib/CodeGen/LLVMTargetMachine.cpp

void LLVMTargetMachine::initAsmInfo() {
   if (Options.CompressDebugSections)
     TmpAsmInfo->setCompressDebugSections(true);
 
   AsmInfo = TmpAsmInfo;
 }
 
 LLVMTargetMachine::LLVMTargetMachine(const Target &T,
                                      StringRef DataLayoutString,
-                                     StringRef Triple, StringRef CPU,
+                                     const Triple &TT, StringRef CPU,
                                      StringRef FS, TargetOptions Options,
                                      Reloc::Model RM, CodeModel::Model CM,
                                      CodeGenOpt::Level OL)
-    : TargetMachine(T, DataLayoutString, Triple, CPU, FS, Options) {
-  CodeGenInfo = T.createMCCodeGenInfo(Triple, RM, CM, OL);
+    : TargetMachine(T, DataLayoutString, TT, CPU, FS, Options) {
+  CodeGenInfo = T.createMCCodeGenInfo(TT.str(), RM, CM, OL);
 }
 
 TargetIRAnalysis LLVMTargetMachine::getTargetIRAnalysis() {
   return TargetIRAnalysis([this](Function &F) {
     return TargetTransformInfo(BasicTTIImpl(this, F));
   });
 }
 

lib/Target/AArch64/AArch64TargetMachine.h

 namespace llvm {
 
 class AArch64TargetMachine : public LLVMTargetMachine {
 protected:
   std::unique_ptr<TargetLoweringObjectFile> TLOF;
   mutable StringMap<std::unique_ptr<AArch64Subtarget>> SubtargetMap;
 
 public:
-  AArch64TargetMachine(const Target &T, StringRef TT, StringRef CPU,
+  AArch64TargetMachine(const Target &T, const Triple &TT, StringRef CPU,
                        StringRef FS, const TargetOptions &Options,
                        Reloc::Model RM, CodeModel::Model CM,
                        CodeGenOpt::Level OL, bool IsLittleEndian);
 
   ~AArch64TargetMachine() override;
   const AArch64Subtarget *getSubtargetImpl(const Function &F) const override;
 
   // Pass Pipeline Configuration
private:
   bool isLittle;
 };
 
 // AArch64leTargetMachine - AArch64 little endian target machine.
 //
 class AArch64leTargetMachine : public AArch64TargetMachine {
   virtual void anchor();
 public:
-  AArch64leTargetMachine(const Target &T, StringRef TT, StringRef CPU,
+  AArch64leTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
                          StringRef FS, const TargetOptions &Options,
                          Reloc::Model RM, CodeModel::Model CM,
                          CodeGenOpt::Level OL);
 };
 
 // AArch64beTargetMachine - AArch64 big endian target machine.
 //
 class AArch64beTargetMachine : public AArch64TargetMachine {
   virtual void anchor();
 public:
-  AArch64beTargetMachine(const Target &T, StringRef TT, StringRef CPU,
+  AArch64beTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
                          StringRef FS, const TargetOptions &Options,
                          Reloc::Model RM, CodeModel::Model CM,
                          CodeGenOpt::Level OL);
 };
 
 } // end namespace llvm
 
 #endif

lib/Target/AArch64/AArch64TargetMachine.cpp

if (TT.isOSBinFormatMachO())
     return "e-m:o-i64:64-i128:128-n32:64-S128";
   if (LittleEndian)
     return "e-m:e-i64:64-i128:128-n32:64-S128";
   return "E-m:e-i64:64-i128:128-n32:64-S128";
 }
 
 /// TargetMachine ctor - Create an AArch64 architecture model.
 ///
-AArch64TargetMachine::AArch64TargetMachine(const Target &T, StringRef TT,
+AArch64TargetMachine::AArch64TargetMachine(const Target &T, const Triple &TT,
                                            StringRef CPU, StringRef FS,
                                            const TargetOptions &Options,
                                            Reloc::Model RM, CodeModel::Model CM,
                                            CodeGenOpt::Level OL,
                                            bool LittleEndian)
     // This nested ternary is horrible, but DL needs to be properly
     // initialized before TLInfo is constructed.
     : LLVMTargetMachine(T, computeDataLayout(Triple(TT), LittleEndian), TT, CPU,
if (!I) {
     I = llvm::make_unique<AArch64Subtarget>(Triple(TargetTriple), CPU, FS,
                                             *this, isLittle);
   }
   return I.get();
 }
 
 void AArch64leTargetMachine::anchor() { }
 
-AArch64leTargetMachine::
-AArch64leTargetMachine(const Target &T, StringRef TT,
-                       StringRef CPU, StringRef FS, const TargetOptions &Options,
-                       Reloc::Model RM, CodeModel::Model CM,
-                       CodeGenOpt::Level OL)
+AArch64leTargetMachine::AArch64leTargetMachine(
+    const Target &T, const Triple &TT, StringRef CPU, StringRef FS,
+    const TargetOptions &Options, Reloc::Model RM, CodeModel::Model CM,
     : AArch64TargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, true) {}
 
 void AArch64beTargetMachine::anchor() { }
 
-AArch64beTargetMachine::
-AArch64beTargetMachine(const Target &T, StringRef TT,
-                       StringRef CPU, StringRef FS, const TargetOptions &Options,
-                       Reloc::Model RM, CodeModel::Model CM,
-                       CodeGenOpt::Level OL)
+AArch64beTargetMachine::AArch64beTargetMachine(
+    const Target &T, const Triple &TT, StringRef CPU, StringRef FS,
+    const TargetOptions &Options, Reloc::Model RM, CodeModel::Model CM,
     : AArch64TargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, false) {}
 
 namespace {
 /// AArch64 Code Generator Pass Configuration Options.
 class AArch64PassConfig : public TargetPassConfig {
 public:
   AArch64PassConfig(AArch64TargetMachine *TM, PassManagerBase &PM)
       : TargetPassConfig(TM, PM) {
     if (TM->getOptLevel() != CodeGenOpt::None)

lib/Target/ARM/ARMTargetMachine.h

 
 protected:
   std::unique_ptr<TargetLoweringObjectFile> TLOF;
   ARMSubtarget        Subtarget;
   bool isLittle;
   mutable StringMap<std::unique_ptr<ARMSubtarget>> SubtargetMap;
 
 public:
-  ARMBaseTargetMachine(const Target &T, StringRef TT,
-                       StringRef CPU, StringRef FS,
-                       const TargetOptions &Options,
+  ARMBaseTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
+                       StringRef FS, const TargetOptions &Options,
                        Reloc::Model RM, CodeModel::Model CM,
-                       CodeGenOpt::Level OL,
-                       bool isLittle);
+                       CodeGenOpt::Level OL, bool isLittle);
   ~ARMBaseTargetMachine() override;
 
   const ARMSubtarget *getSubtargetImpl() const { return &Subtarget; }
   const ARMSubtarget *getSubtargetImpl(const Function &F) const override;
   bool isLittleEndian() const { return isLittle; }
 
   /// \brief Get the TargetIRAnalysis for this target.
   TargetIRAnalysis getTargetIRAnalysis() override;
 
   // Pass Pipeline Configuration
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
 
   TargetLoweringObjectFile *getObjFileLowering() const override {
     return TLOF.get();
   }
 };
 
 /// ARMTargetMachine - ARM target machine.
 ///
 class ARMTargetMachine : public ARMBaseTargetMachine {
   virtual void anchor();
  public:
-   ARMTargetMachine(const Target &T, StringRef TT, StringRef CPU, StringRef FS,
-                    const TargetOptions &Options, Reloc::Model RM,
+   ARMTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
+                    StringRef FS, const TargetOptions &Options, Reloc::Model RM,
                     CodeModel::Model CM, CodeGenOpt::Level OL, bool isLittle);
 };
 
 /// ARMLETargetMachine - ARM little endian target machine.
 ///
 class ARMLETargetMachine : public ARMTargetMachine {
   void anchor() override;
 public:
-  ARMLETargetMachine(const Target &T, StringRef TT,
-                     StringRef CPU, StringRef FS, const TargetOptions &Options,
+  ARMLETargetMachine(const Target &T, const Triple &TT, StringRef CPU,
+                     StringRef FS, const TargetOptions &Options,
                      Reloc::Model RM, CodeModel::Model CM,
                      CodeGenOpt::Level OL);
 };
 
 /// ARMBETargetMachine - ARM big endian target machine.
 ///
 class ARMBETargetMachine : public ARMTargetMachine {
   void anchor() override;
 public:
-  ARMBETargetMachine(const Target &T, StringRef TT, StringRef CPU, StringRef FS,
-                     const TargetOptions &Options, Reloc::Model RM,
-                     CodeModel::Model CM, CodeGenOpt::Level OL);
+  ARMBETargetMachine(const Target &T, const Triple &TT, StringRef CPU,
+                     StringRef FS, const TargetOptions &Options,
+                     Reloc::Model RM, CodeModel::Model CM,
+                     CodeGenOpt::Level OL);
 };
 
 /// ThumbTargetMachine - Thumb target machine.
 /// Due to the way architectures are handled, this represents both
 ///   Thumb-1 and Thumb-2.
 ///
 class ThumbTargetMachine : public ARMBaseTargetMachine {
   virtual void anchor();
 public:
-  ThumbTargetMachine(const Target &T, StringRef TT, StringRef CPU, StringRef FS,
-                     const TargetOptions &Options, Reloc::Model RM,
-                     CodeModel::Model CM, CodeGenOpt::Level OL, bool isLittle);
+  ThumbTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
+                     StringRef FS, const TargetOptions &Options,
+                     Reloc::Model RM, CodeModel::Model CM, CodeGenOpt::Level OL,
+                     bool isLittle);
 };
 
 /// ThumbLETargetMachine - Thumb little endian target machine.
 ///
 class ThumbLETargetMachine : public ThumbTargetMachine {
   void anchor() override;
 public:
-  ThumbLETargetMachine(const Target &T, StringRef TT, StringRef CPU,
+  ThumbLETargetMachine(const Target &T, const Triple &TT, StringRef CPU,
                        StringRef FS, const TargetOptions &Options,
                        Reloc::Model RM, CodeModel::Model CM,
                        CodeGenOpt::Level OL);
 };
 
 /// ThumbBETargetMachine - Thumb big endian target machine.
 ///
 class ThumbBETargetMachine : public ThumbTargetMachine {
   void anchor() override;
 public:
-  ThumbBETargetMachine(const Target &T, StringRef TT, StringRef CPU,
+  ThumbBETargetMachine(const Target &T, const Triple &TT, StringRef CPU,
                        StringRef FS, const TargetOptions &Options,
                        Reloc::Model RM, CodeModel::Model CM,
                        CodeGenOpt::Level OL);
 };
 
 } // end namespace llvm
 
 #endif

lib/Target/ARM/ARMTargetMachine.cpp

static std::string computeDataLayout(const Triple &TT, StringRef CPU,
   else
     Ret += "-S32";
 
   return Ret;
 }
 
 /// TargetMachine ctor - Create an ARM architecture model.
 ///
-ARMBaseTargetMachine::ARMBaseTargetMachine(const Target &T, StringRef TT,
+ARMBaseTargetMachine::ARMBaseTargetMachine(const Target &T, const Triple &TT,
                                            StringRef CPU, StringRef FS,
                                            const TargetOptions &Options,
                                            Reloc::Model RM, CodeModel::Model CM,
                                            CodeGenOpt::Level OL, bool isLittle)
-    : LLVMTargetMachine(T,
-                        computeDataLayout(Triple(TT), CPU, Options, isLittle),
-                        TT, CPU, FS, Options, RM, CM, OL),
-      TargetABI(computeTargetABI(Triple(TT), CPU, Options)),
+    : LLVMTargetMachine(T, computeDataLayout(TT, CPU, Options, isLittle), TT,
+                        CPU, FS, Options, RM, CM, OL),
+      TargetABI(computeTargetABI(TT, CPU, Options)),
       TLOF(createTLOF(Triple(getTargetTriple()))),
-      Subtarget(Triple(TT), CPU, FS, *this, isLittle), isLittle(isLittle) {
+      Subtarget(TT, CPU, FS, *this, isLittle), isLittle(isLittle) {
 
   // Default to triple-appropriate float ABI
   if (Options.FloatABIType == FloatABI::Default)
     this->Options.FloatABIType =
         Subtarget.isTargetHardFloat() ? FloatABI::Hard : FloatABI::Soft;
 }
 
 ARMBaseTargetMachine::~ARMBaseTargetMachine() {}

 TargetIRAnalysis ARMBaseTargetMachine::getTargetIRAnalysis() {
   return TargetIRAnalysis(
       [this](Function &F) { return TargetTransformInfo(ARMTTIImpl(this, F)); });
 }
 
 
 void ARMTargetMachine::anchor() { }
 
-ARMTargetMachine::ARMTargetMachine(const Target &T, StringRef TT, StringRef CPU,
-                                   StringRef FS, const TargetOptions &Options,
+ARMTargetMachine::ARMTargetMachine(const Target &T, const Triple &TT,
+                                   StringRef CPU, StringRef FS,
+                                   const TargetOptions &Options,
                                    Reloc::Model RM, CodeModel::Model CM,
                                    CodeGenOpt::Level OL, bool isLittle)
     : ARMBaseTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, isLittle) {
   initAsmInfo();
   if (!Subtarget.hasARMOps())
     report_fatal_error("CPU: '" + Subtarget.getCPUString() + "' does not "
                        "support ARM mode execution!");
 }
 
 void ARMLETargetMachine::anchor() { }
 
-ARMLETargetMachine::ARMLETargetMachine(const Target &T, StringRef TT,
+ARMLETargetMachine::ARMLETargetMachine(const Target &T, const Triple &TT,
                                        StringRef CPU, StringRef FS,
                                        const TargetOptions &Options,
                                        Reloc::Model RM, CodeModel::Model CM,
                                        CodeGenOpt::Level OL)
     : ARMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, true) {}
 
 void ARMBETargetMachine::anchor() { }
 
-ARMBETargetMachine::ARMBETargetMachine(const Target &T, StringRef TT,
+ARMBETargetMachine::ARMBETargetMachine(const Target &T, const Triple &TT,
                                        StringRef CPU, StringRef FS,
                                        const TargetOptions &Options,
                                        Reloc::Model RM, CodeModel::Model CM,
                                        CodeGenOpt::Level OL)
     : ARMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, false) {}
 
 void ThumbTargetMachine::anchor() { }
 
-ThumbTargetMachine::ThumbTargetMachine(const Target &T, StringRef TT,
+ThumbTargetMachine::ThumbTargetMachine(const Target &T, const Triple &TT,
                                        StringRef CPU, StringRef FS,
                                        const TargetOptions &Options,
                                        Reloc::Model RM, CodeModel::Model CM,
                                        CodeGenOpt::Level OL, bool isLittle)
-    : ARMBaseTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL,
-                           isLittle) {
+    : ARMBaseTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, isLittle) {
   initAsmInfo();
 }
 
 void ThumbLETargetMachine::anchor() { }
 
-ThumbLETargetMachine::ThumbLETargetMachine(const Target &T, StringRef TT,
+ThumbLETargetMachine::ThumbLETargetMachine(const Target &T, const Triple &TT,
                                            StringRef CPU, StringRef FS,
                                            const TargetOptions &Options,
                                            Reloc::Model RM, CodeModel::Model CM,
                                            CodeGenOpt::Level OL)
     : ThumbTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, true) {}
 
 void ThumbBETargetMachine::anchor() { }
 
-ThumbBETargetMachine::ThumbBETargetMachine(const Target &T, StringRef TT,
+ThumbBETargetMachine::ThumbBETargetMachine(const Target &T, const Triple &TT,
                                            StringRef CPU, StringRef FS,
                                            const TargetOptions &Options,
                                            Reloc::Model RM, CodeModel::Model CM,
                                            CodeGenOpt::Level OL)
     : ThumbTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, false) {}
 
 namespace {
 /// ARM Code Generator Pass Configuration Options.

lib/Target/BPF/BPFTargetMachine.h

 #include "llvm/Target/TargetMachine.h"
 
 namespace llvm {
 class BPFTargetMachine : public LLVMTargetMachine {
   std::unique_ptr<TargetLoweringObjectFile> TLOF;
   BPFSubtarget Subtarget;
 
 public:
-  BPFTargetMachine(const Target &T, StringRef TT, StringRef CPU, StringRef FS,
-                   const TargetOptions &Options, Reloc::Model RM,
+  BPFTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
+                   StringRef FS, const TargetOptions &Options, Reloc::Model RM,
                    CodeModel::Model CM, CodeGenOpt::Level OL);
 
   const BPFSubtarget *getSubtargetImpl() const { return &Subtarget; }
   const BPFSubtarget *getSubtargetImpl(const Function &) const override {
     return &Subtarget;
   }
 
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
 
   TargetLoweringObjectFile *getObjFileLowering() const override {
     return TLOF.get();
   }
 };
 }
 
 #endif

lib/Target/BPF/BPFTargetMachine.cpp

 extern "C" void LLVMInitializeBPFTarget() {
   // Register the target.
   RegisterTargetMachine<BPFTargetMachine> X(TheBPFleTarget);
   RegisterTargetMachine<BPFTargetMachine> Y(TheBPFbeTarget);
   RegisterTargetMachine<BPFTargetMachine> Z(TheBPFTarget);
 }
 
 // DataLayout: little or big endian
-static std::string computeDataLayout(StringRef TT) {
-  if (Triple(TT).getArch() == Triple::bpfeb)
+static std::string computeDataLayout(const Triple &TT) {
+  if (TT.getArch() == Triple::bpfeb)
     return "E-m:e-p:64:64-i64:64-n32:64-S128";
   else
     return "e-m:e-p:64:64-i64:64-n32:64-S128";
 }
 
-BPFTargetMachine::BPFTargetMachine(const Target &T, StringRef TT, StringRef CPU,
-                                   StringRef FS, const TargetOptions &Options,
+BPFTargetMachine::BPFTargetMachine(const Target &T, const Triple &TT,
+                                   StringRef CPU, StringRef FS,
+                                   const TargetOptions &Options,
                                    Reloc::Model RM, CodeModel::Model CM,
                                    CodeGenOpt::Level OL)
     : LLVMTargetMachine(T, computeDataLayout(TT), TT, CPU, FS,
                         Options, RM, CM, OL),
       TLOF(make_unique<TargetLoweringObjectFileELF>()),
       Subtarget(Triple(TT), CPU, FS, *this) {
   initAsmInfo();
 }

lib/Target/CppBackend/CPPTargetMachine.h

 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetSubtargetInfo.h"
 
 namespace llvm {
 
 class formatted_raw_ostream;
 
 struct CPPTargetMachine : public TargetMachine {
-  CPPTargetMachine(const Target &T, StringRef TT, StringRef CPU, StringRef FS,
-                   const TargetOptions &Options, Reloc::Model RM,
+  CPPTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
+                   StringRef FS, const TargetOptions &Options, Reloc::Model RM,
                    CodeModel::Model CM, CodeGenOpt::Level OL)
       : TargetMachine(T, "", TT, CPU, FS, Options) {}
 
 public:
   bool addPassesToEmitFile(PassManagerBase &PM, raw_pwrite_stream &Out,
                            CodeGenFileType FileType, bool DisableVerify,
                            AnalysisID StartAfter,
                            AnalysisID StopAfter) override;
 };
 
 extern Target TheCppBackendTarget;
 
 } // End llvm namespace
 
 
 #endif

lib/Target/Hexagon/HexagonTargetMachine.h

 
 class Module;
 
 class HexagonTargetMachine : public LLVMTargetMachine {
   std::unique_ptr<TargetLoweringObjectFile> TLOF;
   HexagonSubtarget Subtarget;
 
 public:
-  HexagonTargetMachine(const Target &T, StringRef TT,StringRef CPU,
+  HexagonTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
                        StringRef FS, const TargetOptions &Options,
                        Reloc::Model RM, CodeModel::Model CM,
                        CodeGenOpt::Level OL);
   ~HexagonTargetMachine() override;
   const HexagonSubtarget *getSubtargetImpl(const Function &) const override {
     return &Subtarget;
   }
   static unsigned getModuleMatchQuality(const Module &M);

lib/Target/Hexagon/HexagonTargetMachine.cpp

namespace llvm {
   FunctionPass *createHexagonExpandCondsets();
 }
 
 /// HexagonTargetMachine ctor - Create an ILP32 architecture model.
 ///
 
 /// Hexagon_TODO: Do I need an aggregate alignment?
 ///
-HexagonTargetMachine::HexagonTargetMachine(const Target &T, StringRef TT,
+HexagonTargetMachine::HexagonTargetMachine(const Target &T, const Triple &TT,
                                            StringRef CPU, StringRef FS,
                                            const TargetOptions &Options,
                                            Reloc::Model RM, CodeModel::Model CM,
                                            CodeGenOpt::Level OL)
     : LLVMTargetMachine(T, "e-m:e-p:32:32-i1:32-i64:64-a:0-n32", TT, CPU, FS,
                         Options, RM, CM, OL),
       TLOF(make_unique<HexagonTargetObjectFile>()),
-      Subtarget(Triple(TT), CPU, FS, *this) {
+      Subtarget(TT, CPU, FS, *this) {
     initAsmInfo();
 }
 
 HexagonTargetMachine::~HexagonTargetMachine() {}
 
 namespace {
 /// Hexagon Code Generator Pass Configuration Options.
 class HexagonPassConfig : public TargetPassConfig {

lib/Target/MSP430/MSP430TargetMachine.h

 
 /// MSP430TargetMachine
 ///
 class MSP430TargetMachine : public LLVMTargetMachine {
   std::unique_ptr<TargetLoweringObjectFile> TLOF;
   MSP430Subtarget        Subtarget;
 
 public:
-  MSP430TargetMachine(const Target &T, StringRef TT,
-                      StringRef CPU, StringRef FS, const TargetOptions &Options,
+  MSP430TargetMachine(const Target &T, const Triple &TT, StringRef CPU,
+                      StringRef FS, const TargetOptions &Options,
                       Reloc::Model RM, CodeModel::Model CM,
                       CodeGenOpt::Level OL);
   ~MSP430TargetMachine() override;
 
   const MSP430Subtarget *getSubtargetImpl(const Function &F) const override {
     return &Subtarget;
   }
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;

lib/Target/MSP430/MSP430TargetMachine.cpp

 #include "llvm/Support/TargetRegistry.h"
 using namespace llvm;
 
 extern "C" void LLVMInitializeMSP430Target() {
   // Register the target.
   RegisterTargetMachine<MSP430TargetMachine> X(TheMSP430Target);
 }
 
-MSP430TargetMachine::MSP430TargetMachine(const Target &T, StringRef TT,
+MSP430TargetMachine::MSP430TargetMachine(const Target &T, const Triple &TT,
                                          StringRef CPU, StringRef FS,
                                          const TargetOptions &Options,
                                          Reloc::Model RM, CodeModel::Model CM,
                                          CodeGenOpt::Level OL)
     : LLVMTargetMachine(T, "e-m:e-p:16:16-i32:16:32-a:16-n8:16", TT, CPU, FS,
                         Options, RM, CM, OL),
       TLOF(make_unique<TargetLoweringObjectFileELF>()),
       // FIXME: Check DataLayout string.
-      Subtarget(Triple(TT), CPU, FS, *this) {
+      Subtarget(TT, CPU, FS, *this) {
   initAsmInfo();
 }
 
 MSP430TargetMachine::~MSP430TargetMachine() {}
 
 namespace {
 /// MSP430 Code Generator Pass Configuration Options.
 class MSP430PassConfig : public TargetPassConfig {

lib/Target/Mips/MipsTargetMachine.h

class MipsTargetMachine : public LLVMTargetMachine {
   MipsSubtarget *Subtarget;
   MipsSubtarget DefaultSubtarget;
   MipsSubtarget NoMips16Subtarget;
   MipsSubtarget Mips16Subtarget;
 
   mutable StringMap<std::unique_ptr<MipsSubtarget>> SubtargetMap;
 
 public:
-  MipsTargetMachine(const Target &T, StringRef TT, StringRef CPU, StringRef FS,
-                    const TargetOptions &Options, Reloc::Model RM,
+  MipsTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
+                    StringRef FS, const TargetOptions &Options, Reloc::Model RM,
                     CodeModel::Model CM, CodeGenOpt::Level OL, bool isLittle);
   ~MipsTargetMachine() override;
 
   TargetIRAnalysis getTargetIRAnalysis() override;
 
   const MipsSubtarget *getSubtargetImpl() const {
     if (Subtarget)
       return Subtarget;
public:
   const MipsABIInfo &getABI() const { return ABI; }
 };
 
 /// MipsebTargetMachine - Mips32/64 big endian target machine.
 ///
 class MipsebTargetMachine : public MipsTargetMachine {
   virtual void anchor();
 public:
-  MipsebTargetMachine(const Target &T, StringRef TT,
-                      StringRef CPU, StringRef FS, const TargetOptions &Options,
+  MipsebTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
+                      StringRef FS, const TargetOptions &Options,
                       Reloc::Model RM, CodeModel::Model CM,
                       CodeGenOpt::Level OL);
 };
 
 /// MipselTargetMachine - Mips32/64 little endian target machine.
 ///
 class MipselTargetMachine : public MipsTargetMachine {
   virtual void anchor();
 public:
-  MipselTargetMachine(const Target &T, StringRef TT,
-                      StringRef CPU, StringRef FS, const TargetOptions &Options,
+  MipselTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
+                      StringRef FS, const TargetOptions &Options,
                       Reloc::Model RM, CodeModel::Model CM,
                       CodeGenOpt::Level OL);
 };
 
 } // End llvm namespace
 
 #endif

lib/Target/Mips/MipsTargetMachine.cpp

static std::string computeDataLayout(const Triple &TT, StringRef CPU,
   return Ret;
 }
 
 // On function prologue, the stack is created by decrementing
 // its pointer. Once decremented, all references are done with positive
 // offset from the stack/frame pointer, using StackGrowsUp enables
 // an easier handling.
 // Using CodeModel::Large enables different CALL behavior.
-MipsTargetMachine::MipsTargetMachine(const Target &T, StringRef TT,
+MipsTargetMachine::MipsTargetMachine(const Target &T, const Triple &TT,
                                      StringRef CPU, StringRef FS,
                                      const TargetOptions &Options,
                                      Reloc::Model RM, CodeModel::Model CM,
                                      CodeGenOpt::Level OL, bool isLittle)
-    : LLVMTargetMachine(T,
-                        computeDataLayout(Triple(TT), CPU, Options, isLittle),
-                        TT, CPU, FS, Options, RM, CM, OL),
+    : LLVMTargetMachine(T, computeDataLayout(TT, CPU, Options, isLittle), TT,
+                        CPU, FS, Options, RM, CM, OL),
       isLittle(isLittle), TLOF(make_unique<MipsTargetObjectFile>()),
-      ABI(MipsABIInfo::computeTargetABI(Triple(TT), CPU, Options.MCOptions)),
-      Subtarget(nullptr),
-      DefaultSubtarget(Triple(TT), CPU, FS, isLittle, *this),
-      NoMips16Subtarget(Triple(TT), CPU,
-                        FS.empty() ? "-mips16" : FS.str() + ",-mips16",
+      ABI(MipsABIInfo::computeTargetABI(TT, CPU, Options.MCOptions)),
+      Subtarget(nullptr), DefaultSubtarget(TT, CPU, FS, isLittle, *this),
+      NoMips16Subtarget(TT, CPU, FS.empty() ? "-mips16" : FS.str() + ",-mips16",
                         isLittle, *this),
-      Mips16Subtarget(Triple(TT), CPU,
-                      FS.empty() ? "+mips16" : FS.str() + ",+mips16", isLittle,
-                      *this) {
+      Mips16Subtarget(TT, CPU, FS.empty() ? "+mips16" : FS.str() + ",+mips16",
+                      isLittle, *this) {
   Subtarget = &DefaultSubtarget;
   initAsmInfo();
 }
 
 MipsTargetMachine::~MipsTargetMachine() {}
 
 void MipsebTargetMachine::anchor() { }
 
-MipsebTargetMachine::
-MipsebTargetMachine(const Target &T, StringRef TT,
-                    StringRef CPU, StringRef FS, const TargetOptions &Options,
+MipsebTargetMachine::MipsebTargetMachine(const Target &T, const Triple &TT,
+                                         StringRef CPU, StringRef FS,
+                                         const TargetOptions &Options,
                                          Reloc::Model RM, CodeModel::Model CM,
                                          CodeGenOpt::Level OL)
     : MipsTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, false) {}
 
 void MipselTargetMachine::anchor() { }
 
-MipselTargetMachine::
-MipselTargetMachine(const Target &T, StringRef TT,
-                    StringRef CPU, StringRef FS, const TargetOptions &Options,
+MipselTargetMachine::MipselTargetMachine(const Target &T, const Triple &TT,
+                                         StringRef CPU, StringRef FS,
+                                         const TargetOptions &Options,
                                          Reloc::Model RM, CodeModel::Model CM,
                                          CodeGenOpt::Level OL)
     : MipsTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, true) {}
 
 const MipsSubtarget *
 MipsTargetMachine::getSubtargetImpl(const Function &F) const {
   Attribute CPUAttr = F.getFnAttribute("target-cpu");
   Attribute FSAttr = F.getFnAttribute("target-features");
 
   std::string CPU = !CPUAttr.hasAttribute(Attribute::None)
                         ? CPUAttr.getValueAsString().str()

lib/Target/NVPTX/NVPTXTargetMachine.h

class NVPTXTargetMachine : public LLVMTargetMachine {
   std::unique_ptr<TargetLoweringObjectFile> TLOF;
   NVPTX::DrvInterface drvInterface;
   NVPTXSubtarget Subtarget;
 
   // Hold Strings that can be free'd all together with NVPTXTargetMachine
   ManagedStringPool ManagedStrPool;
 
 public:
-  NVPTXTargetMachine(const Target &T, StringRef TT, StringRef CPU, StringRef FS,
-                     const TargetOptions &Options, Reloc::Model RM,
-                     CodeModel::Model CM, CodeGenOpt::Level OP, bool is64bit);
+  NVPTXTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
+                     StringRef FS, const TargetOptions &Options,
+                     Reloc::Model RM, CodeModel::Model CM, CodeGenOpt::Level OP,
+                     bool is64bit);
 
   ~NVPTXTargetMachine() override;
   const NVPTXSubtarget *getSubtargetImpl(const Function &) const override {
     return &Subtarget;
   }
   const NVPTXSubtarget *getSubtargetImpl() const { return &Subtarget; }
   bool is64Bit() const { return is64bit; }
   NVPTX::DrvInterface getDrvInterface() const { return drvInterface; }
public:
 
   TargetIRAnalysis getTargetIRAnalysis() override;
 
 }; // NVPTXTargetMachine.
 
 class NVPTXTargetMachine32 : public NVPTXTargetMachine {
   virtual void anchor();
 public:
-  NVPTXTargetMachine32(const Target &T, StringRef TT, StringRef CPU,
+  NVPTXTargetMachine32(const Target &T, const Triple &TT, StringRef CPU,
                        StringRef FS, const TargetOptions &Options,
                        Reloc::Model RM, CodeModel::Model CM,
                        CodeGenOpt::Level OL);
 };
 
 class NVPTXTargetMachine64 : public NVPTXTargetMachine {
   virtual void anchor();
 public:
-  NVPTXTargetMachine64(const Target &T, StringRef TT, StringRef CPU,
+  NVPTXTargetMachine64(const Target &T, const Triple &TT, StringRef CPU,
                        StringRef FS, const TargetOptions &Options,
                        Reloc::Model RM, CodeModel::Model CM,
                        CodeGenOpt::Level OL);
 };
 
 } // end namespace llvm
 
 #endif

lib/Target/NVPTX/NVPTXTargetMachine.cpp

static std::string computeDataLayout(bool is64Bit) {
   if (!is64Bit)
     Ret += "-p:32:32";
 
   Ret += "-i64:64-v16:16-v32:32-n16:32:64";
 
   return Ret;
 }
 
-NVPTXTargetMachine::NVPTXTargetMachine(const Target &T, StringRef TT,
+NVPTXTargetMachine::NVPTXTargetMachine(const Target &T, const Triple &TT,
                                        StringRef CPU, StringRef FS,
                                        const TargetOptions &Options,
                                        Reloc::Model RM, CodeModel::Model CM,
                                        CodeGenOpt::Level OL, bool is64bit)
     : LLVMTargetMachine(T, computeDataLayout(is64bit), TT, CPU, FS, Options, RM,
                         CM, OL),
       is64bit(is64bit), TLOF(make_unique<NVPTXTargetObjectFile>()),
-      Subtarget(Triple(TT), CPU, FS, *this) {
-  if (Triple(TT).getOS() == Triple::NVCL)
+      Subtarget(TT, CPU, FS, *this) {
+  if (TT.getOS() == Triple::NVCL)
     drvInterface = NVPTX::NVCL;
   else
     drvInterface = NVPTX::CUDA;
   initAsmInfo();
 }
 
 NVPTXTargetMachine::~NVPTXTargetMachine() {}
 
 void NVPTXTargetMachine32::anchor() {}
 
-NVPTXTargetMachine32::NVPTXTargetMachine32(
-    const Target &T, StringRef TT, StringRef CPU, StringRef FS,
-    const TargetOptions &Options, Reloc::Model RM, CodeModel::Model CM,
+NVPTXTargetMachine32::NVPTXTargetMachine32(const Target &T, const Triple &TT,
+                                           StringRef CPU, StringRef FS,
+                                           const TargetOptions &Options,
+                                           Reloc::Model RM, CodeModel::Model CM,
                                            CodeGenOpt::Level OL)
     : NVPTXTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, false) {}
 
 void NVPTXTargetMachine64::anchor() {}
 
-NVPTXTargetMachine64::NVPTXTargetMachine64(
-    const Target &T, StringRef TT, StringRef CPU, StringRef FS,
-    const TargetOptions &Options, Reloc::Model RM, CodeModel::Model CM,
+NVPTXTargetMachine64::NVPTXTargetMachine64(const Target &T, const Triple &TT,
+                                           StringRef CPU, StringRef FS,
+                                           const TargetOptions &Options,
+                                           Reloc::Model RM, CodeModel::Model CM,
                                            CodeGenOpt::Level OL)
     : NVPTXTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, true) {}
 
 namespace {
 class NVPTXPassConfig : public TargetPassConfig {
 public:
   NVPTXPassConfig(NVPTXTargetMachine *TM, PassManagerBase &PM)
       : TargetPassConfig(TM, PM) {}
 

lib/Target/PowerPC/PPCTargetMachine.h

 public:
   enum PPCABI { PPC_ABI_UNKNOWN, PPC_ABI_ELFv1, PPC_ABI_ELFv2 };
 private:
   std::unique_ptr<TargetLoweringObjectFile> TLOF;
   PPCABI TargetABI;
   mutable StringMap<std::unique_ptr<PPCSubtarget>> SubtargetMap;
 
 public:
-  PPCTargetMachine(const Target &T, StringRef TT, StringRef CPU, StringRef FS,
-                   const TargetOptions &Options, Reloc::Model RM,
+  PPCTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
+                   StringRef FS, const TargetOptions &Options, Reloc::Model RM,
                    CodeModel::Model CM, CodeGenOpt::Level OL);
 
   ~PPCTargetMachine() override;
 
   const PPCSubtarget *getSubtargetImpl(const Function &F) const override;
 
   // Pass Pipeline Configuration
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
public:
   };
 };
 
 /// PPC32TargetMachine - PowerPC 32-bit target machine.
 ///
 class PPC32TargetMachine : public PPCTargetMachine {
   virtual void anchor();
 public:
-  PPC32TargetMachine(const Target &T, StringRef TT,
-                     StringRef CPU, StringRef FS, const TargetOptions &Options,
+  PPC32TargetMachine(const Target &T, const Triple &TT, StringRef CPU,
+                     StringRef FS, const TargetOptions &Options,
                      Reloc::Model RM, CodeModel::Model CM,
                      CodeGenOpt::Level OL);
 };
 
 /// PPC64TargetMachine - PowerPC 64-bit target machine.
 ///
 class PPC64TargetMachine : public PPCTargetMachine {
   virtual void anchor();
 public:
-  PPC64TargetMachine(const Target &T, StringRef TT,
-                     StringRef CPU, StringRef FS, const TargetOptions &Options,
+  PPC64TargetMachine(const Target &T, const Triple &TT, StringRef CPU,
+                     StringRef FS, const TargetOptions &Options,
                      Reloc::Model RM, CodeModel::Model CM,
                      CodeGenOpt::Level OL);
 };
 
 } // end namespace llvm
 
 #endif

lib/Target/PowerPC/PPCTargetMachine.cpp

static PPCTargetMachine::PPCABI computeTargetABI(const Triple &TT,
   }
   return PPCTargetMachine::PPC_ABI_UNKNOWN;
 }
 
 // The FeatureString here is a little subtle. We are modifying the feature string
 // with what are (currently) non-function specific overrides as it goes into the
 // LLVMTargetMachine constructor and then using the stored value in the
 // Subtarget constructor below it.
-PPCTargetMachine::PPCTargetMachine(const Target &T, StringRef TT, StringRef CPU,
-                                   StringRef FS, const TargetOptions &Options,
+PPCTargetMachine::PPCTargetMachine(const Target &T, const Triple &TT,
+                                   StringRef CPU, StringRef FS,
+                                   const TargetOptions &Options,
                                    Reloc::Model RM, CodeModel::Model CM,
                                    CodeGenOpt::Level OL)
-    : LLVMTargetMachine(T, getDataLayoutString(Triple(TT)), TT, CPU,
-                        computeFSAdditions(FS, OL, TT), Options, RM, CM, OL),
+    : LLVMTargetMachine(T, getDataLayoutString(TT), TT, CPU,
+                        computeFSAdditions(FS, OL, TT.str()), Options, RM, CM,
+                        OL),
       TLOF(createTLOF(Triple(getTargetTriple()))),
-      TargetABI(computeTargetABI(Triple(TT), Options)) {
+      TargetABI(computeTargetABI(TT, Options)) {
   initAsmInfo();
 }
 
 PPCTargetMachine::~PPCTargetMachine() {}
 
 void PPC32TargetMachine::anchor() { }
 
-PPC32TargetMachine::PPC32TargetMachine(const Target &T, StringRef TT,
+PPC32TargetMachine::PPC32TargetMachine(const Target &T, const Triple &TT,
                                        StringRef CPU, StringRef FS,
                                        const TargetOptions &Options,
                                        Reloc::Model RM, CodeModel::Model CM,
                                        CodeGenOpt::Level OL)
-  : PPCTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL) {
-}
+    : PPCTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL) {}
 
 void PPC64TargetMachine::anchor() { }
 
-PPC64TargetMachine::PPC64TargetMachine(const Target &T, StringRef TT,
-                                       StringRef CPU,  StringRef FS,
+PPC64TargetMachine::PPC64TargetMachine(const Target &T, const Triple &TT,
+                                       StringRef CPU, StringRef FS,
                                        const TargetOptions &Options,
                                        Reloc::Model RM, CodeModel::Model CM,
                                        CodeGenOpt::Level OL)
-  : PPCTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL) {
-}
+    : PPCTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL) {}
 
 const PPCSubtarget *
 PPCTargetMachine::getSubtargetImpl(const Function &F) const {
   Attribute CPUAttr = F.getFnAttribute("target-cpu");
   Attribute FSAttr = F.getFnAttribute("target-features");
 
   std::string CPU = !CPUAttr.hasAttribute(Attribute::None)
                         ? CPUAttr.getValueAsString().str()

lib/Target/R600/AMDGPUTargetMachine.h

 private:
 
 protected:
   TargetLoweringObjectFile *TLOF;
   AMDGPUSubtarget Subtarget;
   AMDGPUIntrinsicInfo IntrinsicInfo;
 
 public:
-  AMDGPUTargetMachine(const Target &T, StringRef TT, StringRef FS,
+  AMDGPUTargetMachine(const Target &T, const Triple &TT, StringRef FS,
                       StringRef CPU, TargetOptions Options, Reloc::Model RM,
                       CodeModel::Model CM, CodeGenOpt::Level OL);
   ~AMDGPUTargetMachine();
 
   const AMDGPUSubtarget *getSubtargetImpl() const { return &Subtarget; }
   const AMDGPUSubtarget *getSubtargetImpl(const Function &) const override {
     return &Subtarget;
   }

 
 //===----------------------------------------------------------------------===//
 // R600 Target Machine (R600 -> Cayman)
 //===----------------------------------------------------------------------===//
 
 class R600TargetMachine : public AMDGPUTargetMachine {
 
 public:
-  R600TargetMachine(const Target &T, StringRef TT, StringRef FS,
+  R600TargetMachine(const Target &T, const Triple &TT, StringRef FS,
                     StringRef CPU, TargetOptions Options, Reloc::Model RM,
                     CodeModel::Model CM, CodeGenOpt::Level OL);
 
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
 };
 
 //===----------------------------------------------------------------------===//
 // GCN Target Machine (SI+)
 //===----------------------------------------------------------------------===//
 
 class GCNTargetMachine : public AMDGPUTargetMachine {
 
 public:
-  GCNTargetMachine(const Target &T, StringRef TT, StringRef FS,
-                    StringRef CPU, TargetOptions Options, Reloc::Model RM,
-                    CodeModel::Model CM, CodeGenOpt::Level OL);
+  GCNTargetMachine(const Target &T, const Triple &TT, StringRef FS,
 
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
 };
 
 } // End namespace llvm
 
 #endif

lib/Target/R600/AMDGPUTargetMachine.cpp

static std::string computeDataLayout(const Triple &TT) {
   }
 
   Ret += "-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256"
          "-v512:512-v1024:1024-v2048:2048-n32:64";
 
   return Ret;
 }
 
-AMDGPUTargetMachine::AMDGPUTargetMachine(const Target &T, StringRef TT,
+AMDGPUTargetMachine::AMDGPUTargetMachine(const Target &T, const Triple &TT,
                                          StringRef CPU, StringRef FS,
                                          TargetOptions Options, Reloc::Model RM,
                                          CodeModel::Model CM,
                                          CodeGenOpt::Level OptLevel)
-    : LLVMTargetMachine(T, computeDataLayout(Triple(TT)), TT, CPU, FS, Options,
-                        RM, CM, OptLevel),
-      TLOF(new TargetLoweringObjectFileELF()),
-      Subtarget(Triple(TT), CPU, FS, *this), IntrinsicInfo() {
+    : LLVMTargetMachine(T, computeDataLayout(TT), TT, CPU, FS, Options, RM, CM,
+                        OptLevel),
+      TLOF(new TargetLoweringObjectFileELF()), Subtarget(TT, CPU, FS, *this),
+      IntrinsicInfo() {
   setRequiresStructuredCFG(true);
   initAsmInfo();
 }
 
 AMDGPUTargetMachine::~AMDGPUTargetMachine() {
   delete TLOF;
 }
 
 //===----------------------------------------------------------------------===//
 // R600 Target Machine (R600 -> Cayman)
 //===----------------------------------------------------------------------===//
 
-R600TargetMachine::R600TargetMachine(const Target &T, StringRef TT, StringRef FS,
-                    StringRef CPU, TargetOptions Options, Reloc::Model RM,
-                    CodeModel::Model CM, CodeGenOpt::Level OL) :
-    AMDGPUTargetMachine(T, TT, FS, CPU, Options, RM, CM, OL) { }
-
+R600TargetMachine::R600TargetMachine(const Target &T, const Triple &TT,
+                                     StringRef FS, StringRef CPU,
+                                     TargetOptions Options, Reloc::Model RM,
+                                     CodeModel::Model CM, CodeGenOpt::Level OL)
+    : AMDGPUTargetMachine(T, TT, FS, CPU, Options, RM, CM, OL) {}
 
 //===----------------------------------------------------------------------===//
 // GCN Target Machine (SI+)
 //===----------------------------------------------------------------------===//
 
-GCNTargetMachine::GCNTargetMachine(const Target &T, StringRef TT, StringRef FS,
-                    StringRef CPU, TargetOptions Options, Reloc::Model RM,
-                    CodeModel::Model CM, CodeGenOpt::Level OL) :
-    AMDGPUTargetMachine(T, TT, FS, CPU, Options, RM, CM, OL) { }
+GCNTargetMachine::GCNTargetMachine(const Target &T, const Triple &TT,
+                                   StringRef FS, StringRef CPU,
+                                   TargetOptions Options, Reloc::Model RM,
+                                   CodeModel::Model CM, CodeGenOpt::Level OL)
+    : AMDGPUTargetMachine(T, TT, FS, CPU, Options, RM, CM, OL) {}
 
 //===----------------------------------------------------------------------===//
 // AMDGPU Pass Setup
 //===----------------------------------------------------------------------===//
 
 namespace {
 class AMDGPUPassConfig : public TargetPassConfig {
 public:

lib/Target/Sparc/SparcTargetMachine.h

 #include "llvm/Target/TargetMachine.h"
 
 namespace llvm {
 
 class SparcTargetMachine : public LLVMTargetMachine {
   std::unique_ptr<TargetLoweringObjectFile> TLOF;
   SparcSubtarget Subtarget;
 public:
-  SparcTargetMachine(const Target &T, StringRef TT,
-                     StringRef CPU, StringRef FS, const TargetOptions &Options,
-                     Reloc::Model RM, CodeModel::Model CM,
-                     CodeGenOpt::Level OL, bool is64bit);
+  SparcTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
+                     StringRef FS, const TargetOptions &Options,
+                     Reloc::Model RM, CodeModel::Model CM, CodeGenOpt::Level OL,
+                     bool is64bit);
   ~SparcTargetMachine() override;
 
   const SparcSubtarget *getSubtargetImpl(const Function &) const override {
     return &Subtarget;
   }
 
   // Pass Pipeline Configuration
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
   TargetLoweringObjectFile *getObjFileLowering() const override {
     return TLOF.get();
   }
 };
 
 /// SparcV8TargetMachine - Sparc 32-bit target machine
 ///
 class SparcV8TargetMachine : public SparcTargetMachine {
   virtual void anchor();
 public:
-  SparcV8TargetMachine(const Target &T, StringRef TT,
-                       StringRef CPU, StringRef FS,
-                       const TargetOptions &Options,
+  SparcV8TargetMachine(const Target &T, const Triple &TT, StringRef CPU,
+                       StringRef FS, const TargetOptions &Options,
                        Reloc::Model RM, CodeModel::Model CM,
                        CodeGenOpt::Level OL);
 };
 
 /// SparcV9TargetMachine - Sparc 64-bit target machine
 ///
 class SparcV9TargetMachine : public SparcTargetMachine {
   virtual void anchor();
 public:
-  SparcV9TargetMachine(const Target &T, StringRef TT, StringRef CPU,
+  SparcV9TargetMachine(const Target &T, const Triple &TT, StringRef CPU,
                        StringRef FS, const TargetOptions &Options,
                        Reloc::Model RM, CodeModel::Model CM,
                        CodeGenOpt::Level OL);
 };
 
 class SparcelTargetMachine : public SparcTargetMachine {
   virtual void anchor();
 
 public:
-  SparcelTargetMachine(const Target &T, StringRef TT, StringRef CPU,
+  SparcelTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
                        StringRef FS, const TargetOptions &Options,
                        Reloc::Model RM, CodeModel::Model CM,
                        CodeGenOpt::Level OL);
 };
 
 } // end namespace llvm
 
 #endif

lib/Target/Sparc/SparcTargetMachine.cpp

static std::string computeDataLayout(const Triple &T, bool is64Bit) {
   else
     Ret += "-S64";
 
   return Ret;
 }
 
 /// SparcTargetMachine ctor - Create an ILP32 architecture model
 ///
-SparcTargetMachine::SparcTargetMachine(const Target &T, StringRef TT,
+SparcTargetMachine::SparcTargetMachine(const Target &T, const Triple &TT,
                                        StringRef CPU, StringRef FS,
                                        const TargetOptions &Options,
                                        Reloc::Model RM, CodeModel::Model CM,
                                        CodeGenOpt::Level OL, bool is64bit)
-    : LLVMTargetMachine(T, computeDataLayout(Triple(TT), is64bit), TT, CPU, FS,
-                        Options, RM, CM, OL),
+    : LLVMTargetMachine(T, computeDataLayout(TT, is64bit), TT, CPU, FS, Options,
+                        RM, CM, OL),
       TLOF(make_unique<SparcELFTargetObjectFile>()),
-      Subtarget(Triple(TT), CPU, FS, *this, is64bit) {
+      Subtarget(TT, CPU, FS, *this, is64bit) {
   initAsmInfo();
 }
 
 SparcTargetMachine::~SparcTargetMachine() {}
 
 namespace {
 /// Sparc Code Generator Pass Configuration Options.
 class SparcPassConfig : public TargetPassConfig {

 }
 
 void SparcPassConfig::addPreEmitPass(){
   addPass(createSparcDelaySlotFillerPass(getSparcTargetMachine()));
 }
 
 void SparcV8TargetMachine::anchor() { }
 
-SparcV8TargetMachine::SparcV8TargetMachine(const Target &T,
-                                           StringRef TT, StringRef CPU,
-                                           StringRef FS,
+SparcV8TargetMachine::SparcV8TargetMachine(const Target &T, const Triple &TT,
+                                           StringRef CPU, StringRef FS,
                                            const TargetOptions &Options,
-                                           Reloc::Model RM,
-                                           CodeModel::Model CM,
+                                           Reloc::Model RM, CodeModel::Model CM,
                                            CodeGenOpt::Level OL)
-  : SparcTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, false) {
-}
+    : SparcTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, false) {}
 
 void SparcV9TargetMachine::anchor() { }
 
-SparcV9TargetMachine::SparcV9TargetMachine(const Target &T, StringRef TT,
+SparcV9TargetMachine::SparcV9TargetMachine(const Target &T, const Triple &TT,
                                            StringRef CPU, StringRef FS,
                                            const TargetOptions &Options,
                                            Reloc::Model RM, CodeModel::Model CM,
                                            CodeGenOpt::Level OL)
     : SparcTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, true) {}
 
 void SparcelTargetMachine::anchor() {}
 
-SparcelTargetMachine::SparcelTargetMachine(const Target &T, StringRef TT,
+SparcelTargetMachine::SparcelTargetMachine(const Target &T, const Triple &TT,
                                            StringRef CPU, StringRef FS,
                                            const TargetOptions &Options,
                                            Reloc::Model RM, CodeModel::Model CM,
                                            CodeGenOpt::Level OL)
     : SparcTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, false) {}

lib/Target/SystemZ/SystemZTargetMachine.h

 
 class TargetFrameLowering;
 
 class SystemZTargetMachine : public LLVMTargetMachine {
   std::unique_ptr<TargetLoweringObjectFile> TLOF;
   SystemZSubtarget        Subtarget;
 
 public:
-  SystemZTargetMachine(const Target &T, StringRef TT, StringRef CPU,
+  SystemZTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
                        StringRef FS, const TargetOptions &Options,
                        Reloc::Model RM, CodeModel::Model CM,
                        CodeGenOpt::Level OL);
   ~SystemZTargetMachine() override;
 
   const SystemZSubtarget *getSubtargetImpl() const { return &Subtarget; }
   const SystemZSubtarget *getSubtargetImpl(const Function &) const override {
     return &Subtarget;

lib/Target/SystemZ/SystemZTargetMachine.cpp

static std::string computeDataLayout(const Triple &TT, StringRef CPU,
   Ret += "-a:8:16";
 
   // Integer registers are 32 or 64 bits.
   Ret += "-n32:64";
 
   return Ret;
 }
 
-SystemZTargetMachine::SystemZTargetMachine(const Target &T, StringRef TT,
+SystemZTargetMachine::SystemZTargetMachine(const Target &T, const Triple &TT,
                                            StringRef CPU, StringRef FS,
                                            const TargetOptions &Options,
                                            Reloc::Model RM, CodeModel::Model CM,
                                            CodeGenOpt::Level OL)
-    : LLVMTargetMachine(T, computeDataLayout(Triple(TT), CPU, FS), TT, CPU, FS,
-                        Options, RM, CM, OL),
+    : LLVMTargetMachine(T, computeDataLayout(TT, CPU, FS), TT, CPU, FS, Options,
+                        RM, CM, OL),
       TLOF(make_unique<TargetLoweringObjectFileELF>()),
-      Subtarget(Triple(TT), CPU, FS, *this) {
+      Subtarget(TT, CPU, FS, *this) {
   initAsmInfo();
 }
 
 SystemZTargetMachine::~SystemZTargetMachine() {}
 
 namespace {
 /// SystemZ Code Generator Pass Configuration Options.
 class SystemZPassConfig : public TargetPassConfig {

lib/Target/TargetMachine.cpp

 #include "llvm/Target/TargetSubtargetInfo.h"
 using namespace llvm;
 
 //---------------------------------------------------------------------------
 // TargetMachine Class
 //
 
 TargetMachine::TargetMachine(const Target &T, StringRef DataLayoutString,
-                             StringRef TT, StringRef CPU, StringRef FS,
+                             const Triple &TT, StringRef CPU, StringRef FS,
                              const TargetOptions &Options)
     : TheTarget(T), DL(DataLayoutString), TargetTriple(TT), TargetCPU(CPU),
       TargetFS(FS), CodeGenInfo(nullptr), AsmInfo(nullptr), MRI(nullptr),
       MII(nullptr), STI(nullptr), RequireStructuredCFG(false),
       Options(Options) {}
 
 TargetMachine::~TargetMachine() {
   delete CodeGenInfo;

lib/Target/X86/X86TargetMachine.h

 
 class X86TargetMachine final : public LLVMTargetMachine {
   std::unique_ptr<TargetLoweringObjectFile> TLOF;
   X86Subtarget Subtarget;
 
   mutable StringMap<std::unique_ptr<X86Subtarget>> SubtargetMap;
 
 public:
-  X86TargetMachine(const Target &T, StringRef TT, StringRef CPU, StringRef FS,
-                   const TargetOptions &Options, Reloc::Model RM,
+  X86TargetMachine(const Target &T, const Triple &TT, StringRef CPU,
+                   StringRef FS, const TargetOptions &Options, Reloc::Model RM,
                    CodeModel::Model CM, CodeGenOpt::Level OL);
   ~X86TargetMachine() override;
   const X86Subtarget *getSubtargetImpl(const Function &F) const override;
 
   TargetIRAnalysis getTargetIRAnalysis() override;
 
   // Set up the pass pipeline.
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
   TargetLoweringObjectFile *getObjFileLowering() const override {
     return TLOF.get();
   }
 };
 
 } // End llvm namespace
 
 #endif

lib/Target/X86/X86TargetMachine.cpp

static std::string computeDataLayout(const Triple &TT) {
   else
     Ret += "-S128";
 
   return Ret;
 }
 
 /// X86TargetMachine ctor - Create an X86 target.
 ///
-X86TargetMachine::X86TargetMachine(const Target &T, StringRef TT, StringRef CPU,
-                                   StringRef FS, const TargetOptions &Options,
+X86TargetMachine::X86TargetMachine(const Target &T, const Triple &TT,
+                                   StringRef CPU, StringRef FS,
+                                   const TargetOptions &Options,
                                    Reloc::Model RM, CodeModel::Model CM,
                                    CodeGenOpt::Level OL)
-    : LLVMTargetMachine(T, computeDataLayout(Triple(TT)), TT, CPU, FS, Options,
-                        RM, CM, OL),
+    : LLVMTargetMachine(T, computeDataLayout(TT), TT, CPU, FS, Options, RM, CM,
+                        OL),
       TLOF(createTLOF(Triple(getTargetTriple()))),
-      Subtarget(Triple(TT), CPU, FS, *this, Options.StackAlignmentOverride) {
+      Subtarget(TT, CPU, FS, *this, Options.StackAlignmentOverride) {
   // Windows stack unwinder gets confused when execution flow "falls through"
   // after a call to 'noreturn' function.
   // To prevent that, we emit a trap for 'unreachable' IR instructions.
   // (which on X86, happens to be the 'ud2' instruction)
   if (Subtarget.isTargetWin64())
     this->Options.TrapUnreachable = true;
 
   // TODO: By default, all reciprocal estimate operations are off because

lib/Target/XCore/XCoreTargetMachine.h

 #include "llvm/Target/TargetMachine.h"
 
 namespace llvm {
 
 class XCoreTargetMachine : public LLVMTargetMachine {
   std::unique_ptr<TargetLoweringObjectFile> TLOF;
   XCoreSubtarget Subtarget;
 public:
-  XCoreTargetMachine(const Target &T, StringRef TT,
-                     StringRef CPU, StringRef FS, const TargetOptions &Options,
+  XCoreTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
+                     StringRef FS, const TargetOptions &Options,
                      Reloc::Model RM, CodeModel::Model CM,
                      CodeGenOpt::Level OL);
   ~XCoreTargetMachine() override;
 
   const XCoreSubtarget *getSubtargetImpl() const { return &Subtarget; }
   const XCoreSubtarget *getSubtargetImpl(const Function &) const override {
     return &Subtarget;
   }

lib/Target/XCore/XCoreTargetMachine.cpp

 #include "llvm/CodeGen/Passes.h"
 #include "llvm/IR/Module.h"
 #include "llvm/IR/LegacyPassManager.h"
 #include "llvm/Support/TargetRegistry.h"
 using namespace llvm;
 
 /// XCoreTargetMachine ctor - Create an ILP32 architecture model
 ///
-XCoreTargetMachine::XCoreTargetMachine(const Target &T, StringRef TT,
+XCoreTargetMachine::XCoreTargetMachine(const Target &T, const Triple &TT,
                                        StringRef CPU, StringRef FS,
                                        const TargetOptions &Options,
                                        Reloc::Model RM, CodeModel::Model CM,
                                        CodeGenOpt::Level OL)
     : LLVMTargetMachine(
           T, "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:32-f64:32-a:0:32-n32",
           TT, CPU, FS, Options, RM, CM, OL),
       TLOF(make_unique<XCoreTargetObjectFile>()),
-      Subtarget(Triple(TT), CPU, FS, *this) {
+      Subtarget(TT, CPU, FS, *this) {
   initAsmInfo();
 }
 
 XCoreTargetMachine::~XCoreTargetMachine() {}
 
 namespace {
 /// XCore Code Generator Pass Configuration Options.
 class XCorePassConfig : public TargetPassConfig {