Index: llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
===================================================================
--- llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
+++ llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
@@ -3161,8 +3161,7 @@
     if (!Entry)
       break;
     auto *ValVTy = cast<FixedVectorType>(ValTy);
-    if (!ValVTy->getElementType()->isIntegerTy(1) &&
-        MTy.getVectorNumElements() <= ValVTy->getNumElements() &&
+    if (MTy.getVectorNumElements() <= ValVTy->getNumElements() &&
         isPowerOf2_32(ValVTy->getNumElements())) {
       InstructionCost ExtraCost = 0;
       if (LT.first != 1) {
@@ -3173,7 +3172,9 @@
         ExtraCost = getArithmeticInstrCost(Opcode, Ty, CostKind);
         ExtraCost *= LT.first - 1;
       }
-      return Entry->Cost + ExtraCost;
+      // All and/or/xor of i1 will be lowered with maxv/minv/addv + fmov
+      auto Cost = ValVTy->getElementType()->isIntegerTy(1) ? 2 : Entry->Cost;
+      return Cost + ExtraCost;
     }
     break;
   }
Index: llvm/test/Analysis/CostModel/AArch64/reduce-and.ll
===================================================================
--- llvm/test/Analysis/CostModel/AArch64/reduce-and.ll
+++ llvm/test/Analysis/CostModel/AArch64/reduce-and.ll
@@ -10,9 +10,9 @@
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V4 = call i1 @llvm.vector.reduce.and.v4i1(<4 x i1> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V8 = call i1 @llvm.vector.reduce.and.v8i1(<8 x i1> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V16 = call i1 @llvm.vector.reduce.and.v16i1(<16 x i1> undef)
-; CHECK-NEXT:  Cost Model: Found an estimated cost of 91 for instruction: %V32 = call i1 @llvm.vector.reduce.and.v32i1(<32 x i1> undef)
-; CHECK-NEXT:  Cost Model: Found an estimated cost of 181 for instruction: %V64 = call i1 @llvm.vector.reduce.and.v64i1(<64 x i1> undef)
-; CHECK-NEXT:  Cost Model: Found an estimated cost of 362 for instruction: %V128 = call i1 @llvm.vector.reduce.and.v128i1(<128 x i1> undef)
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V32 = call i1 @llvm.vector.reduce.and.v32i1(<32 x i1> undef)
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V64 = call i1 @llvm.vector.reduce.and.v64i1(<64 x i1> undef)
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V128 = call i1 @llvm.vector.reduce.and.v128i1(<128 x i1> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %V1i8 = call i8 @llvm.vector.reduce.and.v1i8(<1 x i8> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V3i8 = call i8 @llvm.vector.reduce.and.v3i8(<3 x i8> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V4i8 = call i8 @llvm.vector.reduce.and.v4i8(<4 x i8> undef)
Index: llvm/test/Analysis/CostModel/AArch64/reduce-or.ll
===================================================================
--- llvm/test/Analysis/CostModel/AArch64/reduce-or.ll
+++ llvm/test/Analysis/CostModel/AArch64/reduce-or.ll
@@ -10,9 +10,9 @@
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V4 = call i1 @llvm.vector.reduce.or.v4i1(<4 x i1> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V8 = call i1 @llvm.vector.reduce.or.v8i1(<8 x i1> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V16 = call i1 @llvm.vector.reduce.or.v16i1(<16 x i1> undef)
-; CHECK-NEXT:  Cost Model: Found an estimated cost of 91 for instruction: %V32 = call i1 @llvm.vector.reduce.or.v32i1(<32 x i1> undef)
-; CHECK-NEXT:  Cost Model: Found an estimated cost of 181 for instruction: %V64 = call i1 @llvm.vector.reduce.or.v64i1(<64 x i1> undef)
-; CHECK-NEXT:  Cost Model: Found an estimated cost of 362 for instruction: %V128 = call i1 @llvm.vector.reduce.or.v128i1(<128 x i1> undef)
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V32 = call i1 @llvm.vector.reduce.or.v32i1(<32 x i1> undef)
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V64 = call i1 @llvm.vector.reduce.or.v64i1(<64 x i1> undef)
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V128 = call i1 @llvm.vector.reduce.or.v128i1(<128 x i1> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %V1i8 = call i8 @llvm.vector.reduce.or.v1i8(<1 x i8> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V3i8 = call i8 @llvm.vector.reduce.or.v3i8(<3 x i8> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V4i8 = call i8 @llvm.vector.reduce.or.v4i8(<4 x i8> undef)
Index: llvm/test/Analysis/CostModel/AArch64/reduce-xor.ll
===================================================================
--- llvm/test/Analysis/CostModel/AArch64/reduce-xor.ll
+++ llvm/test/Analysis/CostModel/AArch64/reduce-xor.ll
@@ -7,12 +7,12 @@
 ; CHECK-LABEL: 'reduce'
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %V1 = call i1 @llvm.vector.reduce.xor.v1i1(<1 x i1> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V2 = call i1 @llvm.vector.reduce.xor.v2i1(<2 x i1> undef)
-; CHECK-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V4 = call i1 @llvm.vector.reduce.xor.v4i1(<4 x i1> undef)
-; CHECK-NEXT:  Cost Model: Found an estimated cost of 27 for instruction: %V8 = call i1 @llvm.vector.reduce.xor.v8i1(<8 x i1> undef)
-; CHECK-NEXT:  Cost Model: Found an estimated cost of 36 for instruction: %V16 = call i1 @llvm.vector.reduce.xor.v16i1(<16 x i1> undef)
-; CHECK-NEXT:  Cost Model: Found an estimated cost of 127 for instruction: %V32 = call i1 @llvm.vector.reduce.xor.v32i1(<32 x i1> undef)
-; CHECK-NEXT:  Cost Model: Found an estimated cost of 309 for instruction: %V64 = call i1 @llvm.vector.reduce.xor.v64i1(<64 x i1> undef)
-; CHECK-NEXT:  Cost Model: Found an estimated cost of 673 for instruction: %V128 = call i1 @llvm.vector.reduce.xor.v128i1(<128 x i1> undef)
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V4 = call i1 @llvm.vector.reduce.xor.v4i1(<4 x i1> undef)
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V8 = call i1 @llvm.vector.reduce.xor.v8i1(<8 x i1> undef)
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V16 = call i1 @llvm.vector.reduce.xor.v16i1(<16 x i1> undef)
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V32 = call i1 @llvm.vector.reduce.xor.v32i1(<32 x i1> undef)
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V64 = call i1 @llvm.vector.reduce.xor.v64i1(<64 x i1> undef)
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V128 = call i1 @llvm.vector.reduce.xor.v128i1(<128 x i1> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %V1i8 = call i8 @llvm.vector.reduce.xor.v1i8(<1 x i8> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V3i8 = call i8 @llvm.vector.reduce.xor.v3i8(<3 x i8> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V4i8 = call i8 @llvm.vector.reduce.xor.v4i8(<4 x i8> undef)