diff --git a/llvm/utils/TableGen/AsmMatcherEmitter.cpp b/llvm/utils/TableGen/AsmMatcherEmitter.cpp
index 8e475f9153b0d..29f15f0e57333 100644
--- a/llvm/utils/TableGen/AsmMatcherEmitter.cpp
+++ b/llvm/utils/TableGen/AsmMatcherEmitter.cpp
@@ -3472,9 +3472,7 @@ void AsmMatcherEmitter::run(raw_ostream &OS) {
     }
     return false;
   });
-  FeatureBitsets.erase(
-      std::unique(FeatureBitsets.begin(), FeatureBitsets.end()),
-      FeatureBitsets.end());
+  FeatureBitsets.erase(llvm::unique(FeatureBitsets), FeatureBitsets.end());
   OS << "// Feature bitsets.\n"
      << "enum : " << getMinimalTypeForRange(FeatureBitsets.size()) << " {\n"
      << "  AMFBS_None,\n";
diff --git a/llvm/utils/TableGen/Common/CodeGenDAGPatterns.cpp b/llvm/utils/TableGen/Common/CodeGenDAGPatterns.cpp
index 709aa00ae8b32..a8cecca0d4a54 100644
--- a/llvm/utils/TableGen/Common/CodeGenDAGPatterns.cpp
+++ b/llvm/utils/TableGen/Common/CodeGenDAGPatterns.cpp
@@ -1499,8 +1499,7 @@ void PatternToMatch::getPredicateRecords(
   // Sort so that different orders get canonicalized to the same string.
   llvm::sort(PredicateRecs, LessRecord());
   // Remove duplicate predicates.
-  PredicateRecs.erase(std::unique(PredicateRecs.begin(), PredicateRecs.end()),
-                      PredicateRecs.end());
+  PredicateRecs.erase(llvm::unique(PredicateRecs), PredicateRecs.end());
 }
 
 /// getPredicateCheck - Return a single string containing all of this
diff --git a/llvm/utils/TableGen/Common/CodeGenRegisters.cpp b/llvm/utils/TableGen/Common/CodeGenRegisters.cpp
index 624e8d5d54ba8..3c868b1e8f4fe 100644
--- a/llvm/utils/TableGen/Common/CodeGenRegisters.cpp
+++ b/llvm/utils/TableGen/Common/CodeGenRegisters.cpp
@@ -743,7 +743,7 @@ struct TupleExpander : SetTheory::Expander {
 
 static void sortAndUniqueRegisters(CodeGenRegister::Vec &M) {
   llvm::sort(M, deref<std::less<>>());
-  M.erase(std::unique(M.begin(), M.end(), deref<std::equal_to<>>()), M.end());
+  M.erase(llvm::unique(M, deref<std::equal_to<>>()), M.end());
 }
 
 CodeGenRegisterClass::CodeGenRegisterClass(CodeGenRegBank &RegBank, Record *R)
diff --git a/llvm/utils/TableGen/Common/CodeGenSchedule.cpp b/llvm/utils/TableGen/Common/CodeGenSchedule.cpp
index 2ec0812320d14..152e68797b991 100644
--- a/llvm/utils/TableGen/Common/CodeGenSchedule.cpp
+++ b/llvm/utils/TableGen/Common/CodeGenSchedule.cpp
@@ -1699,7 +1699,7 @@ static void inferFromTransitions(ArrayRef<PredTransition> LastTransitions,
     RecVec Preds;
     transform(LastTransition.PredTerm, std::back_inserter(Preds),
               [](const PredCheck &P) { return P.Predicate; });
-    Preds.erase(std::unique(Preds.begin(), Preds.end()), Preds.end());
+    Preds.erase(llvm::unique(Preds), Preds.end());
     dumpTransition(SchedModels, FromSC, SCTrans, Preds);
     SCTrans.PredTerm = std::move(Preds);
     SchedModels.getSchedClass(FromClassIdx)
diff --git a/llvm/utils/TableGen/Common/CodeGenTarget.cpp b/llvm/utils/TableGen/Common/CodeGenTarget.cpp
index bc3ccd888cb47..6915ecbbf3682 100644
--- a/llvm/utils/TableGen/Common/CodeGenTarget.cpp
+++ b/llvm/utils/TableGen/Common/CodeGenTarget.cpp
@@ -250,7 +250,7 @@ std::vector<ValueTypeByHwMode> CodeGenTarget::getRegisterVTs(Record *R) const {
 
   // Remove duplicates.
   llvm::sort(Result);
-  Result.erase(std::unique(Result.begin(), Result.end()), Result.end());
+  Result.erase(llvm::unique(Result), Result.end());
   return Result;
 }
 
@@ -260,9 +260,7 @@ void CodeGenTarget::ReadLegalValueTypes() const {
 
   // Remove duplicates.
   llvm::sort(LegalValueTypes);
-  LegalValueTypes.erase(
-      std::unique(LegalValueTypes.begin(), LegalValueTypes.end()),
-      LegalValueTypes.end());
+  LegalValueTypes.erase(llvm::unique(LegalValueTypes), LegalValueTypes.end());
 }
 
 CodeGenSchedModels &CodeGenTarget::getSchedModels() const {
diff --git a/llvm/utils/TableGen/Common/GlobalISel/GlobalISelMatchTableExecutorEmitter.cpp b/llvm/utils/TableGen/Common/GlobalISel/GlobalISelMatchTableExecutorEmitter.cpp
index 331da97a6f7c6..6edbfa350e350 100644
--- a/llvm/utils/TableGen/Common/GlobalISel/GlobalISelMatchTableExecutorEmitter.cpp
+++ b/llvm/utils/TableGen/Common/GlobalISel/GlobalISelMatchTableExecutorEmitter.cpp
@@ -70,9 +70,7 @@ void GlobalISelMatchTableExecutorEmitter::emitSubtargetFeatureBitsetImpl(
 
                return (A.second < B.second);
              });
-  FeatureBitsets.erase(
-      std::unique(FeatureBitsets.begin(), FeatureBitsets.end()),
-      FeatureBitsets.end());
+  FeatureBitsets.erase(llvm::unique(FeatureBitsets), FeatureBitsets.end());
   OS << "// Feature bitsets.\n"
      << "enum {\n"
      << "  GIFBS_Invalid,\n";
diff --git a/llvm/utils/TableGen/DFAEmitter.cpp b/llvm/utils/TableGen/DFAEmitter.cpp
index 567184d3d5ee7..4b9affb6e850d 100644
--- a/llvm/utils/TableGen/DFAEmitter.cpp
+++ b/llvm/utils/TableGen/DFAEmitter.cpp
@@ -76,10 +76,9 @@ void DfaEmitter::visitDfaState(const DfaState &DS) {
       continue;
     // Sort and unique.
     sort(NewStates);
-    NewStates.erase(std::unique(NewStates.begin(), NewStates.end()),
-                    NewStates.end());
+    NewStates.erase(llvm::unique(NewStates), NewStates.end());
     sort(TI);
-    TI.erase(std::unique(TI.begin(), TI.end()), TI.end());
+    TI.erase(llvm::unique(TI), TI.end());
     unsigned ToId = DfaStates.insert(NewStates);
     DfaTransitions.emplace(std::pair(FromId, A), std::pair(ToId, TI));
   }
diff --git a/llvm/utils/TableGen/FastISelEmitter.cpp b/llvm/utils/TableGen/FastISelEmitter.cpp
index acfdc20316b72..8766d76683d0a 100644
--- a/llvm/utils/TableGen/FastISelEmitter.cpp
+++ b/llvm/utils/TableGen/FastISelEmitter.cpp
@@ -821,8 +821,7 @@ void FastISelMap::printFunctionDefinitions(raw_ostream &OS) {
     if (MI != SignaturesWithConstantForms.end()) {
       // Unique any duplicates out of the list.
       llvm::sort(MI->second);
-      MI->second.erase(std::unique(MI->second.begin(), MI->second.end()),
-                       MI->second.end());
+      MI->second.erase(llvm::unique(MI->second), MI->second.end());
 
       // Check each in order it was seen.  It would be nice to have a good
       // relative ordering between them, but we're not going for optimality
diff --git a/llvm/utils/TableGen/GlobalISelEmitter.cpp b/llvm/utils/TableGen/GlobalISelEmitter.cpp
index ec41cd9fec072..c29cb4edec181 100644
--- a/llvm/utils/TableGen/GlobalISelEmitter.cpp
+++ b/llvm/utils/TableGen/GlobalISelEmitter.cpp
@@ -2469,9 +2469,8 @@ void GlobalISelEmitter::run(raw_ostream &OS) {
   // Sort and remove duplicates to get a list of unique renderer functions, in
   // case some were mentioned more than once.
   llvm::sort(CustomRendererFns);
-  CustomRendererFns.erase(
-      std::unique(CustomRendererFns.begin(), CustomRendererFns.end()),
-      CustomRendererFns.end());
+  CustomRendererFns.erase(llvm::unique(CustomRendererFns),
+                          CustomRendererFns.end());
 
   // Create a table containing the LLT objects needed by the matcher and an enum
   // for the matcher to reference them with.
diff --git a/llvm/utils/TableGen/InstrInfoEmitter.cpp b/llvm/utils/TableGen/InstrInfoEmitter.cpp
index b3a05e081f637..ac85de189e116 100644
--- a/llvm/utils/TableGen/InstrInfoEmitter.cpp
+++ b/llvm/utils/TableGen/InstrInfoEmitter.cpp
@@ -776,9 +776,7 @@ void InstrInfoEmitter::emitFeatureVerifier(raw_ostream &OS,
     }
     return false;
   });
-  FeatureBitsets.erase(
-      std::unique(FeatureBitsets.begin(), FeatureBitsets.end()),
-      FeatureBitsets.end());
+  FeatureBitsets.erase(llvm::unique(FeatureBitsets), FeatureBitsets.end());
   OS << "inline FeatureBitset computeRequiredFeatures(unsigned Opcode) {\n"
      << "  enum : " << getMinimalTypeForRange(FeatureBitsets.size()) << " {\n"
      << "    CEFBS_None,\n";
diff --git a/llvm/utils/TableGen/RegisterInfoEmitter.cpp b/llvm/utils/TableGen/RegisterInfoEmitter.cpp
index 980d9a39636ea..2233072718bb2 100644
--- a/llvm/utils/TableGen/RegisterInfoEmitter.cpp
+++ b/llvm/utils/TableGen/RegisterInfoEmitter.cpp
@@ -370,11 +370,10 @@ static void finalizeDwarfRegNumsKeys(DwarfRegNumsVecTy &DwarfRegNums) {
                                       "specified multiple times");
     LastSeenReg = Reg;
   }
-  auto Last = std::unique(
-      DwarfRegNums.begin(), DwarfRegNums.end(),
-      [](const DwarfRegNumsMapPair &A, const DwarfRegNumsMapPair &B) {
-        return A.first->getName() == B.first->getName();
-      });
+  auto Last = llvm::unique(DwarfRegNums, [](const DwarfRegNumsMapPair &A,
+                                            const DwarfRegNumsMapPair &B) {
+    return A.first->getName() == B.first->getName();
+  });
   DwarfRegNums.erase(Last, DwarfRegNums.end());
 }