diff --git a/llvm/utils/TableGen/DXILEmitter.cpp b/llvm/utils/TableGen/DXILEmitter.cpp
index 0b553c3a3d456..0364b02c2483d 100644
--- a/llvm/utils/TableGen/DXILEmitter.cpp
+++ b/llvm/utils/TableGen/DXILEmitter.cpp
@@ -113,9 +113,7 @@ DXILOperationDesc::DXILOperationDesc(const Record *R) {
 
   ParamTypeRecs.push_back(R->getValueAsDef("result"));
 
-  for (const Record *ArgTy : R->getValueAsListOfDefs("arguments")) {
-    ParamTypeRecs.push_back(ArgTy);
-  }
+  llvm::append_range(ParamTypeRecs, R->getValueAsListOfDefs("arguments"));
   size_t ParamTypeRecsSize = ParamTypeRecs.size();
   // Populate OpTypes with return type and parameter types
 
@@ -148,9 +146,7 @@ DXILOperationDesc::DXILOperationDesc(const Record *R) {
   // Sort records in ascending order of DXIL version
   ascendingSortByVersion(Recs);
 
-  for (const Record *CR : Recs) {
-    OverloadRecs.push_back(CR);
-  }
+  llvm::append_range(OverloadRecs, Recs);
 
   // Get stage records
   Recs = R->getValueAsListOfDefs("stages");
@@ -163,9 +159,7 @@ DXILOperationDesc::DXILOperationDesc(const Record *R) {
   // Sort records in ascending order of DXIL version
   ascendingSortByVersion(Recs);
 
-  for (const Record *CR : Recs) {
-    StageRecs.push_back(CR);
-  }
+  llvm::append_range(StageRecs, Recs);
 
   // Get attribute records
   Recs = R->getValueAsListOfDefs("attributes");
@@ -173,9 +167,7 @@ DXILOperationDesc::DXILOperationDesc(const Record *R) {
   // Sort records in ascending order of DXIL version
   ascendingSortByVersion(Recs);
 
-  for (const Record *CR : Recs) {
-    AttrRecs.push_back(CR);
-  }
+  llvm::append_range(AttrRecs, Recs);
 
   // Get the operation class
   OpClass = R->getValueAsDef("OpClass")->getName();
diff --git a/llvm/utils/TableGen/DecoderEmitter.cpp b/llvm/utils/TableGen/DecoderEmitter.cpp
index e1344ae54b20e..cf7c02db8842e 100644
--- a/llvm/utils/TableGen/DecoderEmitter.cpp
+++ b/llvm/utils/TableGen/DecoderEmitter.cpp
@@ -1342,8 +1342,7 @@ void FilterChooser::emitPredicateTableEntry(DecoderTableInfo &TableInfo,
 
   TableInfo.Table.push_back(MCD::OPC_CheckPredicate);
   // Predicate index.
-  for (const auto PB : PBytes)
-    TableInfo.Table.push_back(PB);
+  llvm::append_range(TableInfo.Table, PBytes);
   // Push location for NumToSkip backpatching.
   TableInfo.FixupStack.back().push_back(TableInfo.Table.size());
   TableInfo.Table.push_back(0);
@@ -1402,15 +1401,13 @@ void FilterChooser::emitSoftFailTableEntry(DecoderTableInfo &TableInfo,
   raw_svector_ostream S(MaskBytes);
   if (NeedPositiveMask) {
     encodeULEB128(PositiveMask.getZExtValue(), S);
-    for (unsigned i = 0, e = MaskBytes.size(); i != e; ++i)
-      TableInfo.Table.push_back(MaskBytes[i]);
+    llvm::append_range(TableInfo.Table, MaskBytes);
   } else
     TableInfo.Table.push_back(0);
   if (NeedNegativeMask) {
     MaskBytes.clear();
     encodeULEB128(NegativeMask.getZExtValue(), S);
-    for (unsigned i = 0, e = MaskBytes.size(); i != e; ++i)
-      TableInfo.Table.push_back(MaskBytes[i]);
+    llvm::append_range(TableInfo.Table, MaskBytes);
   } else
     TableInfo.Table.push_back(0);
 }
@@ -1483,8 +1480,7 @@ void FilterChooser::emitSingletonTableEntry(DecoderTableInfo &TableInfo,
   encodeULEB128(DIdx, S);
 
   // Decoder index.
-  for (const auto B : Bytes)
-    TableInfo.Table.push_back(B);
+  llvm::append_range(TableInfo.Table, Bytes);
 
   if (!HasCompleteDecoder) {
     // Push location for NumToSkip backpatching.
diff --git a/llvm/utils/TableGen/X86DisassemblerTables.cpp b/llvm/utils/TableGen/X86DisassemblerTables.cpp
index 5e7983a101e0b..36f752a1ebe63 100644
--- a/llvm/utils/TableGen/X86DisassemblerTables.cpp
+++ b/llvm/utils/TableGen/X86DisassemblerTables.cpp
@@ -746,8 +746,7 @@ void DisassemblerTables::emitModRMDecision(raw_ostream &o1, raw_ostream &o2,
       ModRMDecision.push_back(decision.instructionIDs[index]);
     break;
   case MODRM_FULL:
-    for (unsigned short InstructionID : decision.instructionIDs)
-      ModRMDecision.push_back(InstructionID);
+    llvm::append_range(ModRMDecision, decision.instructionIDs);
     break;
   }