diff --git a/llvm/include/llvm/Target/TargetMachine.h b/llvm/include/llvm/Target/TargetMachine.h
--- a/llvm/include/llvm/Target/TargetMachine.h
+++ b/llvm/include/llvm/Target/TargetMachine.h
@@ -337,13 +337,13 @@
   /// This is used to construct the new pass manager's target IR analysis pass,
   /// set up appropriately for this target machine. Even the old pass manager
   /// uses this to answer queries about the IR.
-  TargetIRAnalysis getTargetIRAnalysis();
+  TargetIRAnalysis getTargetIRAnalysis() const;
 
   /// Return a TargetTransformInfo for a given function.
   ///
   /// The returned TargetTransformInfo is specialized to the subtarget
   /// corresponding to \p F.
-  virtual TargetTransformInfo getTargetTransformInfo(const Function &F);
+  virtual TargetTransformInfo getTargetTransformInfo(const Function &F) const;
 
   /// Allow the target to modify the pass manager, e.g. by calling
   /// PassManagerBuilder::addExtension.
@@ -417,7 +417,7 @@
   ///
   /// The TTI returned uses the common code generator to answer queries about
   /// the IR.
-  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
+  TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
 
   /// Create a pass configuration object to be used by addPassToEmitX methods
   /// for generating a pipeline of CodeGen passes.
diff --git a/llvm/lib/CodeGen/LLVMTargetMachine.cpp b/llvm/lib/CodeGen/LLVMTargetMachine.cpp
--- a/llvm/lib/CodeGen/LLVMTargetMachine.cpp
+++ b/llvm/lib/CodeGen/LLVMTargetMachine.cpp
@@ -100,7 +100,7 @@
 }
 
 TargetTransformInfo
-LLVMTargetMachine::getTargetTransformInfo(const Function &F) {
+LLVMTargetMachine::getTargetTransformInfo(const Function &F) const {
   return TargetTransformInfo(BasicTTIImpl(this, F));
 }
 
diff --git a/llvm/lib/Target/AArch64/AArch64TargetMachine.h b/llvm/lib/Target/AArch64/AArch64TargetMachine.h
--- a/llvm/lib/Target/AArch64/AArch64TargetMachine.h
+++ b/llvm/lib/Target/AArch64/AArch64TargetMachine.h
@@ -41,7 +41,7 @@
   // Pass Pipeline Configuration
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
 
-  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
+  TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
 
   TargetLoweringObjectFile* getObjFileLowering() const override {
     return TLOF.get();
diff --git a/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp b/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp
--- a/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp
+++ b/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp
@@ -504,7 +504,7 @@
 } // end anonymous namespace
 
 TargetTransformInfo
-AArch64TargetMachine::getTargetTransformInfo(const Function &F) {
+AArch64TargetMachine::getTargetTransformInfo(const Function &F) const {
   return TargetTransformInfo(AArch64TTIImpl(this, F));
 }
 
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.h b/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.h
--- a/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.h
+++ b/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.h
@@ -84,7 +84,7 @@
 
   const TargetSubtargetInfo *getSubtargetImpl(const Function &) const override;
 
-  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
+  TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
 
   bool useIPRA() const override {
     return true;
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp b/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
--- a/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
@@ -836,7 +836,7 @@
 }
 
 TargetTransformInfo
-GCNTargetMachine::getTargetTransformInfo(const Function &F) {
+GCNTargetMachine::getTargetTransformInfo(const Function &F) const {
   return TargetTransformInfo(GCNTTIImpl(this, F));
 }
 
diff --git a/llvm/lib/Target/AMDGPU/R600TargetMachine.h b/llvm/lib/Target/AMDGPU/R600TargetMachine.h
--- a/llvm/lib/Target/AMDGPU/R600TargetMachine.h
+++ b/llvm/lib/Target/AMDGPU/R600TargetMachine.h
@@ -38,7 +38,7 @@
 
   const TargetSubtargetInfo *getSubtargetImpl(const Function &) const override;
 
-  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
+  TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
 
   bool isMachineVerifierClean() const override { return false; }
 };
diff --git a/llvm/lib/Target/AMDGPU/R600TargetMachine.cpp b/llvm/lib/Target/AMDGPU/R600TargetMachine.cpp
--- a/llvm/lib/Target/AMDGPU/R600TargetMachine.cpp
+++ b/llvm/lib/Target/AMDGPU/R600TargetMachine.cpp
@@ -83,7 +83,7 @@
 }
 
 TargetTransformInfo
-R600TargetMachine::getTargetTransformInfo(const Function &F) {
+R600TargetMachine::getTargetTransformInfo(const Function &F) const {
   return TargetTransformInfo(R600TTIImpl(this, F));
 }
 
diff --git a/llvm/lib/Target/ARC/ARCTargetMachine.h b/llvm/lib/Target/ARC/ARCTargetMachine.h
--- a/llvm/lib/Target/ARC/ARCTargetMachine.h
+++ b/llvm/lib/Target/ARC/ARCTargetMachine.h
@@ -39,7 +39,7 @@
   // Pass Pipeline Configuration
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
 
-  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
+  TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
   TargetLoweringObjectFile *getObjFileLowering() const override {
     return TLOF.get();
   }
diff --git a/llvm/lib/Target/ARC/ARCTargetMachine.cpp b/llvm/lib/Target/ARC/ARCTargetMachine.cpp
--- a/llvm/lib/Target/ARC/ARCTargetMachine.cpp
+++ b/llvm/lib/Target/ARC/ARCTargetMachine.cpp
@@ -84,6 +84,6 @@
 }
 
 TargetTransformInfo
-ARCTargetMachine::getTargetTransformInfo(const Function &F) {
+ARCTargetMachine::getTargetTransformInfo(const Function &F) const {
   return TargetTransformInfo(ARCTTIImpl(this, F));
 }
diff --git a/llvm/lib/Target/ARM/ARMTargetMachine.h b/llvm/lib/Target/ARM/ARMTargetMachine.h
--- a/llvm/lib/Target/ARM/ARMTargetMachine.h
+++ b/llvm/lib/Target/ARM/ARMTargetMachine.h
@@ -52,7 +52,7 @@
   const ARMSubtarget *getSubtargetImpl() const = delete;
   bool isLittleEndian() const { return isLittle; }
 
-  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
+  TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
 
   // Pass Pipeline Configuration
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
diff --git a/llvm/lib/Target/ARM/ARMTargetMachine.cpp b/llvm/lib/Target/ARM/ARMTargetMachine.cpp
--- a/llvm/lib/Target/ARM/ARMTargetMachine.cpp
+++ b/llvm/lib/Target/ARM/ARMTargetMachine.cpp
@@ -307,7 +307,7 @@
 }
 
 TargetTransformInfo
-ARMBaseTargetMachine::getTargetTransformInfo(const Function &F) {
+ARMBaseTargetMachine::getTargetTransformInfo(const Function &F) const {
   return TargetTransformInfo(ARMTTIImpl(this, F));
 }
 
diff --git a/llvm/lib/Target/BPF/BPFTargetMachine.h b/llvm/lib/Target/BPF/BPFTargetMachine.h
--- a/llvm/lib/Target/BPF/BPFTargetMachine.h
+++ b/llvm/lib/Target/BPF/BPFTargetMachine.h
@@ -34,7 +34,7 @@
 
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
 
-  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
+  TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
 
   TargetLoweringObjectFile *getObjFileLowering() const override {
     return TLOF.get();
diff --git a/llvm/lib/Target/BPF/BPFTargetMachine.cpp b/llvm/lib/Target/BPF/BPFTargetMachine.cpp
--- a/llvm/lib/Target/BPF/BPFTargetMachine.cpp
+++ b/llvm/lib/Target/BPF/BPFTargetMachine.cpp
@@ -149,7 +149,7 @@
 }
 
 TargetTransformInfo
-BPFTargetMachine::getTargetTransformInfo(const Function &F) {
+BPFTargetMachine::getTargetTransformInfo(const Function &F) const {
   return TargetTransformInfo(BPFTTIImpl(this, F));
 }
 
diff --git a/llvm/lib/Target/Hexagon/HexagonTargetMachine.h b/llvm/lib/Target/Hexagon/HexagonTargetMachine.h
--- a/llvm/lib/Target/Hexagon/HexagonTargetMachine.h
+++ b/llvm/lib/Target/Hexagon/HexagonTargetMachine.h
@@ -39,7 +39,7 @@
   void adjustPassManager(PassManagerBuilder &PMB) override;
   void registerPassBuilderCallbacks(PassBuilder &PB) override;
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
-  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
+  TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
 
   HexagonTargetObjectFile *getObjFileLowering() const override {
     return static_cast<HexagonTargetObjectFile*>(TLOF.get());
diff --git a/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp b/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp
--- a/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp
@@ -293,7 +293,7 @@
 }
 
 TargetTransformInfo
-HexagonTargetMachine::getTargetTransformInfo(const Function &F) {
+HexagonTargetMachine::getTargetTransformInfo(const Function &F) const {
   return TargetTransformInfo(HexagonTTIImpl(this, F));
 }
 
diff --git a/llvm/lib/Target/Lanai/LanaiTargetMachine.h b/llvm/lib/Target/Lanai/LanaiTargetMachine.h
--- a/llvm/lib/Target/Lanai/LanaiTargetMachine.h
+++ b/llvm/lib/Target/Lanai/LanaiTargetMachine.h
@@ -38,7 +38,7 @@
     return &Subtarget;
   }
 
-  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
+  TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
 
   // Pass Pipeline Configuration
   TargetPassConfig *createPassConfig(PassManagerBase &pass_manager) override;
diff --git a/llvm/lib/Target/Lanai/LanaiTargetMachine.cpp b/llvm/lib/Target/Lanai/LanaiTargetMachine.cpp
--- a/llvm/lib/Target/Lanai/LanaiTargetMachine.cpp
+++ b/llvm/lib/Target/Lanai/LanaiTargetMachine.cpp
@@ -68,7 +68,7 @@
 }
 
 TargetTransformInfo
-LanaiTargetMachine::getTargetTransformInfo(const Function &F) {
+LanaiTargetMachine::getTargetTransformInfo(const Function &F) const {
   return TargetTransformInfo(LanaiTTIImpl(this, F));
 }
 
diff --git a/llvm/lib/Target/Mips/MipsTargetMachine.h b/llvm/lib/Target/Mips/MipsTargetMachine.h
--- a/llvm/lib/Target/Mips/MipsTargetMachine.h
+++ b/llvm/lib/Target/Mips/MipsTargetMachine.h
@@ -43,7 +43,7 @@
                     CodeGenOpt::Level OL, bool JIT, bool isLittle);
   ~MipsTargetMachine() override;
 
-  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
+  TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
 
   const MipsSubtarget *getSubtargetImpl() const {
     if (Subtarget)
diff --git a/llvm/lib/Target/Mips/MipsTargetMachine.cpp b/llvm/lib/Target/Mips/MipsTargetMachine.cpp
--- a/llvm/lib/Target/Mips/MipsTargetMachine.cpp
+++ b/llvm/lib/Target/Mips/MipsTargetMachine.cpp
@@ -276,7 +276,7 @@
 }
 
 TargetTransformInfo
-MipsTargetMachine::getTargetTransformInfo(const Function &F) {
+MipsTargetMachine::getTargetTransformInfo(const Function &F) const {
   if (Subtarget->allowMixed16_32()) {
     LLVM_DEBUG(errs() << "No Target Transform Info Pass Added\n");
     // FIXME: This is no longer necessary as the TTI returned is per-function.
diff --git a/llvm/lib/Target/NVPTX/NVPTXTargetMachine.h b/llvm/lib/Target/NVPTX/NVPTXTargetMachine.h
--- a/llvm/lib/Target/NVPTX/NVPTXTargetMachine.h
+++ b/llvm/lib/Target/NVPTX/NVPTXTargetMachine.h
@@ -65,7 +65,7 @@
   void adjustPassManager(PassManagerBuilder &) override;
   void registerPassBuilderCallbacks(PassBuilder &PB) override;
 
-  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
+  TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
 
   bool isMachineVerifierClean() const override {
     return false;
diff --git a/llvm/lib/Target/NVPTX/NVPTXTargetMachine.cpp b/llvm/lib/Target/NVPTX/NVPTXTargetMachine.cpp
--- a/llvm/lib/Target/NVPTX/NVPTXTargetMachine.cpp
+++ b/llvm/lib/Target/NVPTX/NVPTXTargetMachine.cpp
@@ -237,7 +237,7 @@
 }
 
 TargetTransformInfo
-NVPTXTargetMachine::getTargetTransformInfo(const Function &F) {
+NVPTXTargetMachine::getTargetTransformInfo(const Function &F) const {
   return TargetTransformInfo(NVPTXTTIImpl(this, F));
 }
 
diff --git a/llvm/lib/Target/PowerPC/PPCTargetMachine.h b/llvm/lib/Target/PowerPC/PPCTargetMachine.h
--- a/llvm/lib/Target/PowerPC/PPCTargetMachine.h
+++ b/llvm/lib/Target/PowerPC/PPCTargetMachine.h
@@ -51,7 +51,7 @@
   // Pass Pipeline Configuration
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
 
-  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
+  TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
 
   TargetLoweringObjectFile *getObjFileLowering() const override {
     return TLOF.get();
diff --git a/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp b/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp
--- a/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp
+++ b/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp
@@ -565,7 +565,7 @@
 }
 
 TargetTransformInfo
-PPCTargetMachine::getTargetTransformInfo(const Function &F) {
+PPCTargetMachine::getTargetTransformInfo(const Function &F) const {
   return TargetTransformInfo(PPCTTIImpl(this, F));
 }
 
diff --git a/llvm/lib/Target/RISCV/RISCVTargetMachine.h b/llvm/lib/Target/RISCV/RISCVTargetMachine.h
--- a/llvm/lib/Target/RISCV/RISCVTargetMachine.h
+++ b/llvm/lib/Target/RISCV/RISCVTargetMachine.h
@@ -42,7 +42,7 @@
     return TLOF.get();
   }
 
-  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
+  TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
 
   virtual bool isNoopAddrSpaceCast(unsigned SrcAS,
                                    unsigned DstAS) const override;
diff --git a/llvm/lib/Target/RISCV/RISCVTargetMachine.cpp b/llvm/lib/Target/RISCV/RISCVTargetMachine.cpp
--- a/llvm/lib/Target/RISCV/RISCVTargetMachine.cpp
+++ b/llvm/lib/Target/RISCV/RISCVTargetMachine.cpp
@@ -114,7 +114,7 @@
 }
 
 TargetTransformInfo
-RISCVTargetMachine::getTargetTransformInfo(const Function &F) {
+RISCVTargetMachine::getTargetTransformInfo(const Function &F) const {
   return TargetTransformInfo(RISCVTTIImpl(this, F));
 }
 
diff --git a/llvm/lib/Target/SystemZ/SystemZTargetMachine.h b/llvm/lib/Target/SystemZ/SystemZTargetMachine.h
--- a/llvm/lib/Target/SystemZ/SystemZTargetMachine.h
+++ b/llvm/lib/Target/SystemZ/SystemZTargetMachine.h
@@ -44,7 +44,7 @@
 
   // Override LLVMTargetMachine
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
-  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
+  TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
 
   TargetLoweringObjectFile *getObjFileLowering() const override {
     return TLOF.get();
diff --git a/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp b/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
--- a/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
@@ -334,6 +334,6 @@
 }
 
 TargetTransformInfo
-SystemZTargetMachine::getTargetTransformInfo(const Function &F) {
+SystemZTargetMachine::getTargetTransformInfo(const Function &F) const {
   return TargetTransformInfo(SystemZTTIImpl(this, F));
 }
diff --git a/llvm/lib/Target/TargetMachine.cpp b/llvm/lib/Target/TargetMachine.cpp
--- a/llvm/lib/Target/TargetMachine.cpp
+++ b/llvm/lib/Target/TargetMachine.cpp
@@ -192,7 +192,8 @@
 
 void TargetMachine::setOptLevel(CodeGenOpt::Level Level) { OptLevel = Level; }
 
-TargetTransformInfo TargetMachine::getTargetTransformInfo(const Function &F) {
+TargetTransformInfo
+TargetMachine::getTargetTransformInfo(const Function &F) const {
   return TargetTransformInfo(F.getParent()->getDataLayout());
 }
 
@@ -220,7 +221,7 @@
   return TLOF->getContext().getOrCreateSymbol(NameStr);
 }
 
-TargetIRAnalysis TargetMachine::getTargetIRAnalysis() {
+TargetIRAnalysis TargetMachine::getTargetIRAnalysis() const {
   // Since Analysis can't depend on Target, use a std::function to invert the
   // dependency.
   return TargetIRAnalysis(
diff --git a/llvm/lib/Target/VE/VETargetMachine.h b/llvm/lib/Target/VE/VETargetMachine.h
--- a/llvm/lib/Target/VE/VETargetMachine.h
+++ b/llvm/lib/Target/VE/VETargetMachine.h
@@ -49,7 +49,7 @@
 
   bool isMachineVerifierClean() const override { return false; }
 
-  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
+  TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
 
   unsigned getSjLjDataSize() const override { return 64; }
 };
diff --git a/llvm/lib/Target/VE/VETargetMachine.cpp b/llvm/lib/Target/VE/VETargetMachine.cpp
--- a/llvm/lib/Target/VE/VETargetMachine.cpp
+++ b/llvm/lib/Target/VE/VETargetMachine.cpp
@@ -92,7 +92,8 @@
 
 VETargetMachine::~VETargetMachine() = default;
 
-TargetTransformInfo VETargetMachine::getTargetTransformInfo(const Function &F) {
+TargetTransformInfo
+VETargetMachine::getTargetTransformInfo(const Function &F) const {
   return TargetTransformInfo(VETTIImpl(this, F));
 }
 
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.h b/llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.h
--- a/llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.h
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.h
@@ -46,7 +46,7 @@
     return TLOF.get();
   }
 
-  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
+  TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
 
   bool usesPhysRegsForValues() const override { return false; }
 
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp
--- a/llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp
@@ -336,7 +336,7 @@
 } // end anonymous namespace
 
 TargetTransformInfo
-WebAssemblyTargetMachine::getTargetTransformInfo(const Function &F) {
+WebAssemblyTargetMachine::getTargetTransformInfo(const Function &F) const {
   return TargetTransformInfo(WebAssemblyTTIImpl(this, F));
 }
 
diff --git a/llvm/lib/Target/X86/X86TargetMachine.h b/llvm/lib/Target/X86/X86TargetMachine.h
--- a/llvm/lib/Target/X86/X86TargetMachine.h
+++ b/llvm/lib/Target/X86/X86TargetMachine.h
@@ -44,7 +44,7 @@
   // attributes of each function.
   const X86Subtarget *getSubtargetImpl() const = delete;
 
-  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
+  TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
 
   // Set up the pass pipeline.
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
diff --git a/llvm/lib/Target/X86/X86TargetMachine.cpp b/llvm/lib/Target/X86/X86TargetMachine.cpp
--- a/llvm/lib/Target/X86/X86TargetMachine.cpp
+++ b/llvm/lib/Target/X86/X86TargetMachine.cpp
@@ -333,7 +333,7 @@
 //===----------------------------------------------------------------------===//
 
 TargetTransformInfo
-X86TargetMachine::getTargetTransformInfo(const Function &F) {
+X86TargetMachine::getTargetTransformInfo(const Function &F) const {
   return TargetTransformInfo(X86TTIImpl(this, F));
 }
 
diff --git a/llvm/lib/Target/XCore/XCoreTargetMachine.h b/llvm/lib/Target/XCore/XCoreTargetMachine.h
--- a/llvm/lib/Target/XCore/XCoreTargetMachine.h
+++ b/llvm/lib/Target/XCore/XCoreTargetMachine.h
@@ -42,7 +42,7 @@
   // Pass Pipeline Configuration
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
 
-  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
+  TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
 
   TargetLoweringObjectFile *getObjFileLowering() const override {
     return TLOF.get();
diff --git a/llvm/lib/Target/XCore/XCoreTargetMachine.cpp b/llvm/lib/Target/XCore/XCoreTargetMachine.cpp
--- a/llvm/lib/Target/XCore/XCoreTargetMachine.cpp
+++ b/llvm/lib/Target/XCore/XCoreTargetMachine.cpp
@@ -108,6 +108,6 @@
 }
 
 TargetTransformInfo
-XCoreTargetMachine::getTargetTransformInfo(const Function &F) {
+XCoreTargetMachine::getTargetTransformInfo(const Function &F) const {
   return TargetTransformInfo(XCoreTTIImpl(this, F));
 }