diff --git a/llvm/test/Transforms/LoopVectorize/pr45259.ll b/llvm/test/Transforms/LoopVectorize/pr45259.ll
index 3d1370b14a0f47..3d4613e10f3ca5 100644
--- a/llvm/test/Transforms/LoopVectorize/pr45259.ll
+++ b/llvm/test/Transforms/LoopVectorize/pr45259.ll
@@ -1,12 +1,84 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -S -loop-vectorize -force-vector-width=4 -force-vector-interleave=1 | FileCheck %s
 
 ; Check that we can vectorize this loop without crashing.
 
-; CHECK-LABEL: define {{.*}} @widget(
-; CHECK: [[vecInd:%.*]] = phi <4 x i8> [ <i8 0, i8 1, i8 2, i8 3>
-; CHECK-NEXT: add <4 x i8> [[vecInd]], <i8 1, i8 1, i8 1, i8 1>
-
 define i8 @widget(i8* %arr, i8 %t9) {
+; CHECK-LABEL: @widget(
+; CHECK-NEXT:  bb:
+; CHECK-NEXT:    [[ARR1:%.*]] = ptrtoint i8* [[ARR:%.*]] to i64
+; CHECK-NEXT:    br label [[BB6:%.*]]
+; CHECK:       bb6:
+; CHECK-NEXT:    [[T1_0:%.*]] = phi i8* [ [[ARR]], [[BB:%.*]] ], [ null, [[BB6]] ]
+; CHECK-NEXT:    [[C:%.*]] = call i1 @cond()
+; CHECK-NEXT:    br i1 [[C]], label [[FOR_PREHEADER:%.*]], label [[BB6]]
+; CHECK:       for.preheader:
+; CHECK-NEXT:    [[T1_0_LCSSA:%.*]] = phi i8* [ [[T1_0]], [[BB6]] ]
+; CHECK-NEXT:    [[T1_0_LCSSA3:%.*]] = ptrtoint i8* [[T1_0_LCSSA]] to i64
+; CHECK-NEXT:    [[TMP0:%.*]] = trunc i64 [[T1_0_LCSSA3]] to i32
+; CHECK-NEXT:    [[TMP1:%.*]] = trunc i64 [[ARR1]] to i32
+; CHECK-NEXT:    [[TMP2:%.*]] = sub i32 [[TMP0]], [[TMP1]]
+; CHECK-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[TMP2]], 4
+; CHECK-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_SCEVCHECK:%.*]]
+; CHECK:       vector.scevcheck:
+; CHECK-NEXT:    [[TMP3:%.*]] = sub i64 -1, [[ARR1]]
+; CHECK-NEXT:    [[SCEVGEP:%.*]] = getelementptr i8, i8* [[T1_0_LCSSA]], i64 [[TMP3]]
+; CHECK-NEXT:    [[SCEVGEP2:%.*]] = ptrtoint i8* [[SCEVGEP]] to i64
+; CHECK-NEXT:    [[TMP4:%.*]] = trunc i64 [[SCEVGEP2]] to i8
+; CHECK-NEXT:    [[MUL:%.*]] = call { i8, i1 } @llvm.umul.with.overflow.i8(i8 1, i8 [[TMP4]])
+; CHECK-NEXT:    [[MUL_RESULT:%.*]] = extractvalue { i8, i1 } [[MUL]], 0
+; CHECK-NEXT:    [[MUL_OVERFLOW:%.*]] = extractvalue { i8, i1 } [[MUL]], 1
+; CHECK-NEXT:    [[TMP5:%.*]] = add i8 1, [[MUL_RESULT]]
+; CHECK-NEXT:    [[TMP6:%.*]] = sub i8 1, [[MUL_RESULT]]
+; CHECK-NEXT:    [[TMP7:%.*]] = icmp sgt i8 [[TMP6]], 1
+; CHECK-NEXT:    [[TMP8:%.*]] = icmp slt i8 [[TMP5]], 1
+; CHECK-NEXT:    [[TMP9:%.*]] = select i1 false, i1 [[TMP7]], i1 [[TMP8]]
+; CHECK-NEXT:    [[TMP10:%.*]] = icmp ugt i64 [[SCEVGEP2]], 255
+; CHECK-NEXT:    [[TMP11:%.*]] = or i1 [[TMP9]], [[TMP10]]
+; CHECK-NEXT:    [[TMP12:%.*]] = or i1 [[TMP11]], [[MUL_OVERFLOW]]
+; CHECK-NEXT:    [[TMP13:%.*]] = or i1 false, [[TMP12]]
+; CHECK-NEXT:    br i1 [[TMP13]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]]
+; CHECK:       vector.ph:
+; CHECK-NEXT:    [[N_MOD_VF:%.*]] = urem i32 [[TMP2]], 4
+; CHECK-NEXT:    [[N_VEC:%.*]] = sub i32 [[TMP2]], [[N_MOD_VF]]
+; CHECK-NEXT:    [[IND_END:%.*]] = trunc i32 [[N_VEC]] to i8
+; CHECK-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i8> poison, i8 [[T9:%.*]], i32 0
+; CHECK-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i8> [[BROADCAST_SPLATINSERT]], <4 x i8> poison, <4 x i32> zeroinitializer
+; CHECK-NEXT:    br label [[VECTOR_BODY:%.*]]
+; CHECK:       vector.body:
+; CHECK-NEXT:    [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-NEXT:    [[VEC_IND:%.*]] = phi <4 x i8> [ <i8 0, i8 1, i8 2, i8 3>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-NEXT:    [[TMP14:%.*]] = add <4 x i8> [[VEC_IND]], <i8 1, i8 1, i8 1, i8 1>
+; CHECK-NEXT:    [[TMP15:%.*]] = extractelement <4 x i8> [[TMP14]], i32 0
+; CHECK-NEXT:    [[TMP16:%.*]] = getelementptr inbounds i8, i8* [[ARR]], i8 [[TMP15]]
+; CHECK-NEXT:    [[TMP17:%.*]] = icmp slt <4 x i8> [[TMP14]], [[BROADCAST_SPLAT]]
+; CHECK-NEXT:    [[TMP18:%.*]] = zext <4 x i1> [[TMP17]] to <4 x i8>
+; CHECK-NEXT:    [[TMP19:%.*]] = getelementptr inbounds i8, i8* [[TMP16]], i32 0
+; CHECK-NEXT:    [[TMP20:%.*]] = bitcast i8* [[TMP19]] to <4 x i8>*
+; CHECK-NEXT:    store <4 x i8> [[TMP18]], <4 x i8>* [[TMP20]], align 1
+; CHECK-NEXT:    [[INDEX_NEXT]] = add i32 [[INDEX]], 4
+; CHECK-NEXT:    [[VEC_IND_NEXT]] = add <4 x i8> [[VEC_IND]], <i8 4, i8 4, i8 4, i8 4>
+; CHECK-NEXT:    [[TMP21:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]]
+; CHECK-NEXT:    br i1 [[TMP21]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
+; CHECK:       middle.block:
+; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i32 [[TMP2]], [[N_VEC]]
+; CHECK-NEXT:    br i1 [[CMP_N]], label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
+; CHECK:       scalar.ph:
+; CHECK-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i8 [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ 0, [[FOR_PREHEADER]] ], [ 0, [[VECTOR_SCEVCHECK]] ]
+; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK:       for.body:
+; CHECK-NEXT:    [[IV:%.*]] = phi i8 [ [[IV_NEXT:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ]
+; CHECK-NEXT:    [[IV_NEXT]] = add i8 [[IV]], 1
+; CHECK-NEXT:    [[PTR:%.*]] = getelementptr inbounds i8, i8* [[ARR]], i8 [[IV_NEXT]]
+; CHECK-NEXT:    [[T3_I:%.*]] = icmp slt i8 [[IV_NEXT]], [[T9]]
+; CHECK-NEXT:    [[T3_I8:%.*]] = zext i1 [[T3_I]] to i8
+; CHECK-NEXT:    store i8 [[T3_I8]], i8* [[PTR]], align 1
+; CHECK-NEXT:    [[EC:%.*]] = icmp eq i8* [[T1_0_LCSSA]], [[PTR]]
+; CHECK-NEXT:    br i1 [[EC]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP2:![0-9]+]]
+; CHECK:       for.exit:
+; CHECK-NEXT:    [[IV_NEXT_LCSSA:%.*]] = phi i8 [ [[IV_NEXT]], [[FOR_BODY]] ], [ [[IND_END]], [[MIDDLE_BLOCK]] ]
+; CHECK-NEXT:    ret i8 [[IV_NEXT_LCSSA]]
+;
 bb:
   br label %bb6