llvm/test/Transforms/LoopVectorize/RISCV/tail-folding-fixed-order-recurrence.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -passes=loop-vectorize \
; RUN: -prefer-inloop-reductions \
; RUN: -prefer-predicate-over-epilogue=predicate-else-scalar-epilogue \
; RUN: -mtriple=riscv64 -mattr=+v,+f -S < %s| FileCheck %s --check-prefix=IF-EVL

; RUN: opt -passes=loop-vectorize \
; RUN: -prefer-inloop-reductions \
; RUN: -prefer-predicate-over-epilogue=scalar-epilogue \
; RUN: -mtriple=riscv64 -mattr=+v,+f -S < %s| FileCheck %s --check-prefix=NO-VP

define void @first_order_recurrence(ptr noalias %A, ptr noalias %B, i64 %TC) {
; IF-EVL-LABEL: define void @first_order_recurrence(
; IF-EVL-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[TC:%.*]]) #[[ATTR0:[0-9]+]] {
; IF-EVL-NEXT:  [[ENTRY:.*]]:
; IF-EVL-NEXT:    br i1 false, label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; IF-EVL:       [[VECTOR_PH]]:
; IF-EVL-NEXT:    [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
; IF-EVL-NEXT:    [[TMP5:%.*]] = mul nuw i64 [[TMP4]], 4
; IF-EVL-NEXT:    [[TMP6:%.*]] = sub i64 [[TMP5]], 1
; IF-EVL-NEXT:    [[N_RND_UP:%.*]] = add i64 [[TC]], [[TMP6]]
; IF-EVL-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP5]]
; IF-EVL-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
; IF-EVL-NEXT:    [[TMP7:%.*]] = call i64 @llvm.vscale.i64()
; IF-EVL-NEXT:    [[TMP8:%.*]] = mul nuw i64 [[TMP7]], 4
; IF-EVL-NEXT:    [[TMP25:%.*]] = trunc i64 [[TMP8]] to i32
; IF-EVL-NEXT:    [[TMP9:%.*]] = call i32 @llvm.vscale.i32()
; IF-EVL-NEXT:    [[TMP10:%.*]] = mul nuw i32 [[TMP9]], 4
; IF-EVL-NEXT:    [[TMP11:%.*]] = sub i32 [[TMP10]], 1
; IF-EVL-NEXT:    [[VECTOR_RECUR_INIT:%.*]] = insertelement <vscale x 4 x i32> poison, i32 33, i32 [[TMP11]]
; IF-EVL-NEXT:    br label %[[VECTOR_BODY:.*]]
; IF-EVL:       [[VECTOR_BODY]]:
; IF-EVL-NEXT:    [[EVL_BASED_IV:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_EVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[VECTOR_RECUR:%.*]] = phi <vscale x 4 x i32> [ [[VECTOR_RECUR_INIT]], %[[VECTOR_PH]] ], [ [[VP_OP_LOAD:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[AVL:%.*]] = phi i64 [ [[TC]], %[[VECTOR_PH]] ], [ [[AVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[PREV_EVL:%.*]] = phi i32 [ [[TMP25]], %[[VECTOR_PH]] ], [ [[TMP12:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[TMP12]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 4, i1 true)
; IF-EVL-NEXT:    [[TMP14:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[EVL_BASED_IV]]
; IF-EVL-NEXT:    [[VP_OP_LOAD]] = call <vscale x 4 x i32> @llvm.vp.load.nxv4i32.p0(ptr align 4 [[TMP14]], <vscale x 4 x i1> splat (i1 true), i32 [[TMP12]])
; IF-EVL-NEXT:    [[TMP16:%.*]] = call <vscale x 4 x i32> @llvm.experimental.vp.splice.nxv4i32(<vscale x 4 x i32> [[VECTOR_RECUR]], <vscale x 4 x i32> [[VP_OP_LOAD]], i32 -1, <vscale x 4 x i1> splat (i1 true), i32 [[PREV_EVL]], i32 [[TMP12]])
; IF-EVL-NEXT:    [[VP_OP:%.*]] = add nsw <vscale x 4 x i32> [[TMP16]], [[VP_OP_LOAD]]
; IF-EVL-NEXT:    [[TMP17:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[EVL_BASED_IV]]
; IF-EVL-NEXT:    call void @llvm.vp.store.nxv4i32.p0(<vscale x 4 x i32> [[VP_OP]], ptr align 4 [[TMP17]], <vscale x 4 x i1> splat (i1 true), i32 [[TMP12]])
; IF-EVL-NEXT:    [[TMP19:%.*]] = zext i32 [[TMP12]] to i64
; IF-EVL-NEXT:    [[INDEX_EVL_NEXT]] = add i64 [[TMP19]], [[EVL_BASED_IV]]
; IF-EVL-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP19]]
; IF-EVL-NEXT:    [[TMP20:%.*]] = icmp eq i64 [[INDEX_EVL_NEXT]], [[TC]]
; IF-EVL-NEXT:    br i1 [[TMP20]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; IF-EVL:       [[MIDDLE_BLOCK]]:
; IF-EVL-NEXT:    br label %[[FOR_END:.*]]
; IF-EVL:       [[SCALAR_PH]]:
; IF-EVL-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ 0, %[[ENTRY]] ]
; IF-EVL-NEXT:    [[SCALAR_RECUR_INIT:%.*]] = phi i32 [ 33, %[[ENTRY]] ]
; IF-EVL-NEXT:    br label %[[FOR_BODY:.*]]
; IF-EVL:       [[FOR_BODY]]:
; IF-EVL-NEXT:    [[INDVARS:%.*]] = phi i64 [ 0, %[[SCALAR_PH]] ], [ [[INDVARS_NEXT:%.*]], %[[FOR_BODY]] ]
; IF-EVL-NEXT:    [[FOR1:%.*]] = phi i32 [ 33, %[[SCALAR_PH]] ], [ [[TMP24:%.*]], %[[FOR_BODY]] ]
; IF-EVL-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[INDVARS]]
; IF-EVL-NEXT:    [[TMP24]] = load i32, ptr [[ARRAYIDX]], align 4
; IF-EVL-NEXT:    [[ADD:%.*]] = add nsw i32 [[FOR1]], [[TMP24]]
; IF-EVL-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[INDVARS]]
; IF-EVL-NEXT:    store i32 [[ADD]], ptr [[ARRAYIDX2]], align 4
; IF-EVL-NEXT:    [[INDVARS_NEXT]] = add nuw nsw i64 [[INDVARS]], 1
; IF-EVL-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INDVARS_NEXT]], [[TC]]
; IF-EVL-NEXT:    br i1 [[EXITCOND_NOT]], label %[[FOR_END]], label %[[FOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; IF-EVL:       [[FOR_END]]:
; IF-EVL-NEXT:    ret void
;
; NO-VP-LABEL: define void @first_order_recurrence(
; NO-VP-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[TC:%.*]]) #[[ATTR0:[0-9]+]] {
; NO-VP-NEXT:  [[ENTRY:.*]]:
; NO-VP-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; NO-VP-NEXT:    [[TMP1:%.*]] = mul nuw i64 [[TMP0]], 4
; NO-VP-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TC]], [[TMP1]]
; NO-VP-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; NO-VP:       [[VECTOR_PH]]:
; NO-VP-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; NO-VP-NEXT:    [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 4
; NO-VP-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[TC]], [[TMP3]]
; NO-VP-NEXT:    [[N_VEC:%.*]] = sub i64 [[TC]], [[N_MOD_VF]]
; NO-VP-NEXT:    [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
; NO-VP-NEXT:    [[TMP5:%.*]] = mul nuw i64 [[TMP4]], 4
; NO-VP-NEXT:    [[TMP6:%.*]] = call i32 @llvm.vscale.i32()
; NO-VP-NEXT:    [[TMP7:%.*]] = mul nuw i32 [[TMP6]], 4
; NO-VP-NEXT:    [[TMP8:%.*]] = sub i32 [[TMP7]], 1
; NO-VP-NEXT:    [[VECTOR_RECUR_INIT:%.*]] = insertelement <vscale x 4 x i32> poison, i32 33, i32 [[TMP8]]
; NO-VP-NEXT:    br label %[[VECTOR_BODY:.*]]
; NO-VP:       [[VECTOR_BODY]]:
; NO-VP-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; NO-VP-NEXT:    [[VECTOR_RECUR:%.*]] = phi <vscale x 4 x i32> [ [[VECTOR_RECUR_INIT]], %[[VECTOR_PH]] ], [ [[WIDE_LOAD:%.*]], %[[VECTOR_BODY]] ]
; NO-VP-NEXT:    [[TMP10:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[INDEX]]
; NO-VP-NEXT:    [[WIDE_LOAD]] = load <vscale x 4 x i32>, ptr [[TMP10]], align 4
; NO-VP-NEXT:    [[TMP12:%.*]] = call <vscale x 4 x i32> @llvm.vector.splice.nxv4i32(<vscale x 4 x i32> [[VECTOR_RECUR]], <vscale x 4 x i32> [[WIDE_LOAD]], i32 -1)
; NO-VP-NEXT:    [[TMP13:%.*]] = add nsw <vscale x 4 x i32> [[TMP12]], [[WIDE_LOAD]]
; NO-VP-NEXT:    [[TMP14:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[INDEX]]
; NO-VP-NEXT:    store <vscale x 4 x i32> [[TMP13]], ptr [[TMP14]], align 4
; NO-VP-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
; NO-VP-NEXT:    [[TMP16:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; NO-VP-NEXT:    br i1 [[TMP16]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; NO-VP:       [[MIDDLE_BLOCK]]:
; NO-VP-NEXT:    [[TMP17:%.*]] = call i32 @llvm.vscale.i32()
; NO-VP-NEXT:    [[TMP18:%.*]] = mul nuw i32 [[TMP17]], 4
; NO-VP-NEXT:    [[TMP19:%.*]] = sub i32 [[TMP18]], 1
; NO-VP-NEXT:    [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <vscale x 4 x i32> [[WIDE_LOAD]], i32 [[TMP19]]
; NO-VP-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TC]], [[N_VEC]]
; NO-VP-NEXT:    br i1 [[CMP_N]], label %[[FOR_END:.*]], label %[[SCALAR_PH]]
; NO-VP:       [[SCALAR_PH]]:
; NO-VP-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; NO-VP-NEXT:    [[SCALAR_RECUR_INIT:%.*]] = phi i32 [ [[VECTOR_RECUR_EXTRACT]], %[[MIDDLE_BLOCK]] ], [ 33, %[[ENTRY]] ]
; NO-VP-NEXT:    br label %[[FOR_BODY:.*]]
; NO-VP:       [[FOR_BODY]]:
; NO-VP-NEXT:    [[INDVARS:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[INDVARS_NEXT:%.*]], %[[FOR_BODY]] ]
; NO-VP-NEXT:    [[FOR1:%.*]] = phi i32 [ [[SCALAR_RECUR_INIT]], %[[SCALAR_PH]] ], [ [[TMP20:%.*]], %[[FOR_BODY]] ]
; NO-VP-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[INDVARS]]
; NO-VP-NEXT:    [[TMP20]] = load i32, ptr [[ARRAYIDX]], align 4
; NO-VP-NEXT:    [[ADD:%.*]] = add nsw i32 [[FOR1]], [[TMP20]]
; NO-VP-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[INDVARS]]
; NO-VP-NEXT:    store i32 [[ADD]], ptr [[ARRAYIDX2]], align 4
; NO-VP-NEXT:    [[INDVARS_NEXT]] = add nuw nsw i64 [[INDVARS]], 1
; NO-VP-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INDVARS_NEXT]], [[TC]]
; NO-VP-NEXT:    br i1 [[EXITCOND_NOT]], label %[[FOR_END]], label %[[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
; NO-VP:       [[FOR_END]]:
; NO-VP-NEXT:    ret void
;
entry:
  br label %for.body

for.body:
  %indvars = phi i64 [ 0, %entry ], [ %indvars.next, %for.body ]
  %for1 = phi i32 [ 33, %entry ], [ %0, %for.body ]
  %arrayidx = getelementptr inbounds nuw i32, ptr %A, i64 %indvars
  %0 = load i32, ptr %arrayidx, align 4
  %add = add nsw i32 %for1, %0
  %arrayidx2 = getelementptr inbounds nuw i32, ptr %B, i64 %indvars
  store i32 %add, ptr %arrayidx2, align 4
  %indvars.next = add nuw nsw i64 %indvars, 1
  %exitcond.not = icmp eq i64 %indvars.next, %TC
  br i1 %exitcond.not, label %for.end, label %for.body, !llvm.loop !0

for.end:
  ret void
}

define void @second_order_recurrence(ptr noalias %A, ptr noalias %B, i64 %TC) {
; IF-EVL-LABEL: define void @second_order_recurrence(
; IF-EVL-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[TC:%.*]]) #[[ATTR0]] {
; IF-EVL-NEXT:  [[ENTRY:.*]]:
; IF-EVL-NEXT:    br i1 false, label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; IF-EVL:       [[VECTOR_PH]]:
; IF-EVL-NEXT:    [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
; IF-EVL-NEXT:    [[TMP5:%.*]] = mul nuw i64 [[TMP4]], 4
; IF-EVL-NEXT:    [[TMP6:%.*]] = sub i64 [[TMP5]], 1
; IF-EVL-NEXT:    [[N_RND_UP:%.*]] = add i64 [[TC]], [[TMP6]]
; IF-EVL-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP5]]
; IF-EVL-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
; IF-EVL-NEXT:    [[TMP7:%.*]] = call i64 @llvm.vscale.i64()
; IF-EVL-NEXT:    [[TMP8:%.*]] = mul nuw i64 [[TMP7]], 4
; IF-EVL-NEXT:    [[TMP32:%.*]] = trunc i64 [[TMP8]] to i32
; IF-EVL-NEXT:    [[TMP9:%.*]] = call i32 @llvm.vscale.i32()
; IF-EVL-NEXT:    [[TMP10:%.*]] = mul nuw i32 [[TMP9]], 4
; IF-EVL-NEXT:    [[TMP11:%.*]] = sub i32 [[TMP10]], 1
; IF-EVL-NEXT:    [[VECTOR_RECUR_INIT:%.*]] = insertelement <vscale x 4 x i32> poison, i32 33, i32 [[TMP11]]
; IF-EVL-NEXT:    [[TMP12:%.*]] = call i32 @llvm.vscale.i32()
; IF-EVL-NEXT:    [[TMP13:%.*]] = mul nuw i32 [[TMP12]], 4
; IF-EVL-NEXT:    [[TMP14:%.*]] = sub i32 [[TMP13]], 1
; IF-EVL-NEXT:    [[VECTOR_RECUR_INIT1:%.*]] = insertelement <vscale x 4 x i32> poison, i32 22, i32 [[TMP14]]
; IF-EVL-NEXT:    br label %[[VECTOR_BODY:.*]]
; IF-EVL:       [[VECTOR_BODY]]:
; IF-EVL-NEXT:    [[EVL_BASED_IV:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_EVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[VECTOR_RECUR:%.*]] = phi <vscale x 4 x i32> [ [[VECTOR_RECUR_INIT]], %[[VECTOR_PH]] ], [ [[VP_OP_LOAD:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[VECTOR_RECUR2:%.*]] = phi <vscale x 4 x i32> [ [[VECTOR_RECUR_INIT1]], %[[VECTOR_PH]] ], [ [[TMP19:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[AVL:%.*]] = phi i64 [ [[TC]], %[[VECTOR_PH]] ], [ [[AVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[PREV_EVL:%.*]] = phi i32 [ [[TMP32]], %[[VECTOR_PH]] ], [ [[TMP15:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[TMP15]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 4, i1 true)
; IF-EVL-NEXT:    [[TMP17:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[EVL_BASED_IV]]
; IF-EVL-NEXT:    [[VP_OP_LOAD]] = call <vscale x 4 x i32> @llvm.vp.load.nxv4i32.p0(ptr align 4 [[TMP17]], <vscale x 4 x i1> splat (i1 true), i32 [[TMP15]])
; IF-EVL-NEXT:    [[TMP19]] = call <vscale x 4 x i32> @llvm.experimental.vp.splice.nxv4i32(<vscale x 4 x i32> [[VECTOR_RECUR]], <vscale x 4 x i32> [[VP_OP_LOAD]], i32 -1, <vscale x 4 x i1> splat (i1 true), i32 [[PREV_EVL]], i32 [[TMP15]])
; IF-EVL-NEXT:    [[TMP20:%.*]] = call <vscale x 4 x i32> @llvm.experimental.vp.splice.nxv4i32(<vscale x 4 x i32> [[VECTOR_RECUR2]], <vscale x 4 x i32> [[TMP19]], i32 -1, <vscale x 4 x i1> splat (i1 true), i32 [[PREV_EVL]], i32 [[TMP15]])
; IF-EVL-NEXT:    [[VP_OP:%.*]] = add nsw <vscale x 4 x i32> [[TMP19]], [[TMP20]]
; IF-EVL-NEXT:    [[TMP21:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[EVL_BASED_IV]]
; IF-EVL-NEXT:    call void @llvm.vp.store.nxv4i32.p0(<vscale x 4 x i32> [[VP_OP]], ptr align 4 [[TMP21]], <vscale x 4 x i1> splat (i1 true), i32 [[TMP15]])
; IF-EVL-NEXT:    [[TMP23:%.*]] = zext i32 [[TMP15]] to i64
; IF-EVL-NEXT:    [[INDEX_EVL_NEXT]] = add i64 [[TMP23]], [[EVL_BASED_IV]]
; IF-EVL-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP23]]
; IF-EVL-NEXT:    [[TMP24:%.*]] = icmp eq i64 [[INDEX_EVL_NEXT]], [[TC]]
; IF-EVL-NEXT:    br i1 [[TMP24]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
; IF-EVL:       [[MIDDLE_BLOCK]]:
; IF-EVL-NEXT:    br label %[[FOR_END:.*]]
; IF-EVL:       [[SCALAR_PH]]:
; IF-EVL-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ 0, %[[ENTRY]] ]
; IF-EVL-NEXT:    [[SCALAR_RECUR_INIT:%.*]] = phi i32 [ 33, %[[ENTRY]] ]
; IF-EVL-NEXT:    [[SCALAR_RECUR_INIT3:%.*]] = phi i32 [ 22, %[[ENTRY]] ]
; IF-EVL-NEXT:    br label %[[FOR_BODY:.*]]
; IF-EVL:       [[FOR_BODY]]:
; IF-EVL-NEXT:    [[INDVARS:%.*]] = phi i64 [ 0, %[[SCALAR_PH]] ], [ [[INDVARS_NEXT:%.*]], %[[FOR_BODY]] ]
; IF-EVL-NEXT:    [[FOR1:%.*]] = phi i32 [ 33, %[[SCALAR_PH]] ], [ [[TMP31:%.*]], %[[FOR_BODY]] ]
; IF-EVL-NEXT:    [[FOR2:%.*]] = phi i32 [ 22, %[[SCALAR_PH]] ], [ [[FOR1]], %[[FOR_BODY]] ]
; IF-EVL-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[INDVARS]]
; IF-EVL-NEXT:    [[TMP31]] = load i32, ptr [[ARRAYIDX]], align 4
; IF-EVL-NEXT:    [[ADD:%.*]] = add nsw i32 [[FOR1]], [[FOR2]]
; IF-EVL-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[INDVARS]]
; IF-EVL-NEXT:    store i32 [[ADD]], ptr [[ARRAYIDX2]], align 4
; IF-EVL-NEXT:    [[INDVARS_NEXT]] = add nuw nsw i64 [[INDVARS]], 1
; IF-EVL-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INDVARS_NEXT]], [[TC]]
; IF-EVL-NEXT:    br i1 [[EXITCOND_NOT]], label %[[FOR_END]], label %[[FOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
; IF-EVL:       [[FOR_END]]:
; IF-EVL-NEXT:    ret void
;
; NO-VP-LABEL: define void @second_order_recurrence(
; NO-VP-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[TC:%.*]]) #[[ATTR0]] {
; NO-VP-NEXT:  [[ENTRY:.*]]:
; NO-VP-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; NO-VP-NEXT:    [[TMP1:%.*]] = mul nuw i64 [[TMP0]], 4
; NO-VP-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TC]], [[TMP1]]
; NO-VP-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; NO-VP:       [[VECTOR_PH]]:
; NO-VP-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; NO-VP-NEXT:    [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 4
; NO-VP-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[TC]], [[TMP3]]
; NO-VP-NEXT:    [[N_VEC:%.*]] = sub i64 [[TC]], [[N_MOD_VF]]
; NO-VP-NEXT:    [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
; NO-VP-NEXT:    [[TMP5:%.*]] = mul nuw i64 [[TMP4]], 4
; NO-VP-NEXT:    [[TMP6:%.*]] = call i32 @llvm.vscale.i32()
; NO-VP-NEXT:    [[TMP7:%.*]] = mul nuw i32 [[TMP6]], 4
; NO-VP-NEXT:    [[TMP8:%.*]] = sub i32 [[TMP7]], 1
; NO-VP-NEXT:    [[VECTOR_RECUR_INIT:%.*]] = insertelement <vscale x 4 x i32> poison, i32 33, i32 [[TMP8]]
; NO-VP-NEXT:    [[TMP9:%.*]] = call i32 @llvm.vscale.i32()
; NO-VP-NEXT:    [[TMP10:%.*]] = mul nuw i32 [[TMP9]], 4
; NO-VP-NEXT:    [[TMP11:%.*]] = sub i32 [[TMP10]], 1
; NO-VP-NEXT:    [[VECTOR_RECUR_INIT1:%.*]] = insertelement <vscale x 4 x i32> poison, i32 22, i32 [[TMP11]]
; NO-VP-NEXT:    br label %[[VECTOR_BODY:.*]]
; NO-VP:       [[VECTOR_BODY]]:
; NO-VP-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; NO-VP-NEXT:    [[VECTOR_RECUR:%.*]] = phi <vscale x 4 x i32> [ [[VECTOR_RECUR_INIT]], %[[VECTOR_PH]] ], [ [[WIDE_LOAD:%.*]], %[[VECTOR_BODY]] ]
; NO-VP-NEXT:    [[VECTOR_RECUR2:%.*]] = phi <vscale x 4 x i32> [ [[VECTOR_RECUR_INIT1]], %[[VECTOR_PH]] ], [ [[TMP15:%.*]], %[[VECTOR_BODY]] ]
; NO-VP-NEXT:    [[TMP13:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[INDEX]]
; NO-VP-NEXT:    [[WIDE_LOAD]] = load <vscale x 4 x i32>, ptr [[TMP13]], align 4
; NO-VP-NEXT:    [[TMP15]] = call <vscale x 4 x i32> @llvm.vector.splice.nxv4i32(<vscale x 4 x i32> [[VECTOR_RECUR]], <vscale x 4 x i32> [[WIDE_LOAD]], i32 -1)
; NO-VP-NEXT:    [[TMP16:%.*]] = call <vscale x 4 x i32> @llvm.vector.splice.nxv4i32(<vscale x 4 x i32> [[VECTOR_RECUR2]], <vscale x 4 x i32> [[TMP15]], i32 -1)
; NO-VP-NEXT:    [[TMP17:%.*]] = add nsw <vscale x 4 x i32> [[TMP15]], [[TMP16]]
; NO-VP-NEXT:    [[TMP18:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[INDEX]]
; NO-VP-NEXT:    store <vscale x 4 x i32> [[TMP17]], ptr [[TMP18]], align 4
; NO-VP-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
; NO-VP-NEXT:    [[TMP20:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; NO-VP-NEXT:    br i1 [[TMP20]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; NO-VP:       [[MIDDLE_BLOCK]]:
; NO-VP-NEXT:    [[TMP21:%.*]] = call i32 @llvm.vscale.i32()
; NO-VP-NEXT:    [[TMP22:%.*]] = mul nuw i32 [[TMP21]], 4
; NO-VP-NEXT:    [[TMP23:%.*]] = sub i32 [[TMP22]], 1
; NO-VP-NEXT:    [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <vscale x 4 x i32> [[WIDE_LOAD]], i32 [[TMP23]]
; NO-VP-NEXT:    [[TMP24:%.*]] = call i32 @llvm.vscale.i32()
; NO-VP-NEXT:    [[TMP25:%.*]] = mul nuw i32 [[TMP24]], 4
; NO-VP-NEXT:    [[TMP26:%.*]] = sub i32 [[TMP25]], 1
; NO-VP-NEXT:    [[VECTOR_RECUR_EXTRACT3:%.*]] = extractelement <vscale x 4 x i32> [[TMP15]], i32 [[TMP26]]
; NO-VP-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TC]], [[N_VEC]]
; NO-VP-NEXT:    br i1 [[CMP_N]], label %[[FOR_END:.*]], label %[[SCALAR_PH]]
; NO-VP:       [[SCALAR_PH]]:
; NO-VP-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; NO-VP-NEXT:    [[SCALAR_RECUR_INIT:%.*]] = phi i32 [ [[VECTOR_RECUR_EXTRACT]], %[[MIDDLE_BLOCK]] ], [ 33, %[[ENTRY]] ]
; NO-VP-NEXT:    [[SCALAR_RECUR_INIT4:%.*]] = phi i32 [ [[VECTOR_RECUR_EXTRACT3]], %[[MIDDLE_BLOCK]] ], [ 22, %[[ENTRY]] ]
; NO-VP-NEXT:    br label %[[FOR_BODY:.*]]
; NO-VP:       [[FOR_BODY]]:
; NO-VP-NEXT:    [[INDVARS:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[INDVARS_NEXT:%.*]], %[[FOR_BODY]] ]
; NO-VP-NEXT:    [[FOR1:%.*]] = phi i32 [ [[SCALAR_RECUR_INIT]], %[[SCALAR_PH]] ], [ [[TMP27:%.*]], %[[FOR_BODY]] ]
; NO-VP-NEXT:    [[FOR2:%.*]] = phi i32 [ [[SCALAR_RECUR_INIT4]], %[[SCALAR_PH]] ], [ [[FOR1]], %[[FOR_BODY]] ]
; NO-VP-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[INDVARS]]
; NO-VP-NEXT:    [[TMP27]] = load i32, ptr [[ARRAYIDX]], align 4
; NO-VP-NEXT:    [[ADD:%.*]] = add nsw i32 [[FOR1]], [[FOR2]]
; NO-VP-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[INDVARS]]
; NO-VP-NEXT:    store i32 [[ADD]], ptr [[ARRAYIDX2]], align 4
; NO-VP-NEXT:    [[INDVARS_NEXT]] = add nuw nsw i64 [[INDVARS]], 1
; NO-VP-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INDVARS_NEXT]], [[TC]]
; NO-VP-NEXT:    br i1 [[EXITCOND_NOT]], label %[[FOR_END]], label %[[FOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
; NO-VP:       [[FOR_END]]:
; NO-VP-NEXT:    ret void
;
entry:
  br label %for.body

for.body:
  %indvars = phi i64 [ 0, %entry ], [ %indvars.next, %for.body ]
  %for1 = phi i32 [ 33, %entry ], [ %0, %for.body ]
  %for2 = phi i32 [ 22, %entry ], [ %for1, %for.body ]
  %arrayidx = getelementptr inbounds nuw i32, ptr %A, i64 %indvars
  %0 = load i32, ptr %arrayidx, align 4
  %add = add nsw i32 %for1, %for2
  %arrayidx2 = getelementptr inbounds nuw i32, ptr %B, i64 %indvars
  store i32 %add, ptr %arrayidx2, align 4
  %indvars.next = add nuw nsw i64 %indvars, 1
  %exitcond.not = icmp eq i64 %indvars.next, %TC
  br i1 %exitcond.not, label %for.end, label %for.body, !llvm.loop !0

for.end:
  ret void
}

define void @third_order_recurrence(ptr noalias %A, ptr noalias %B, i64 %TC) {
; IF-EVL-LABEL: define void @third_order_recurrence(
; IF-EVL-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[TC:%.*]]) #[[ATTR0]] {
; IF-EVL-NEXT:  [[ENTRY:.*]]:
; IF-EVL-NEXT:    br i1 false, label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; IF-EVL:       [[VECTOR_PH]]:
; IF-EVL-NEXT:    [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
; IF-EVL-NEXT:    [[TMP5:%.*]] = mul nuw i64 [[TMP4]], 4
; IF-EVL-NEXT:    [[TMP6:%.*]] = sub i64 [[TMP5]], 1
; IF-EVL-NEXT:    [[N_RND_UP:%.*]] = add i64 [[TC]], [[TMP6]]
; IF-EVL-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP5]]
; IF-EVL-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
; IF-EVL-NEXT:    [[TMP7:%.*]] = call i64 @llvm.vscale.i64()
; IF-EVL-NEXT:    [[TMP8:%.*]] = mul nuw i64 [[TMP7]], 4
; IF-EVL-NEXT:    [[TMP39:%.*]] = trunc i64 [[TMP8]] to i32
; IF-EVL-NEXT:    [[TMP9:%.*]] = call i32 @llvm.vscale.i32()
; IF-EVL-NEXT:    [[TMP10:%.*]] = mul nuw i32 [[TMP9]], 4
; IF-EVL-NEXT:    [[TMP11:%.*]] = sub i32 [[TMP10]], 1
; IF-EVL-NEXT:    [[VECTOR_RECUR_INIT:%.*]] = insertelement <vscale x 4 x i32> poison, i32 33, i32 [[TMP11]]
; IF-EVL-NEXT:    [[TMP12:%.*]] = call i32 @llvm.vscale.i32()
; IF-EVL-NEXT:    [[TMP13:%.*]] = mul nuw i32 [[TMP12]], 4
; IF-EVL-NEXT:    [[TMP14:%.*]] = sub i32 [[TMP13]], 1
; IF-EVL-NEXT:    [[VECTOR_RECUR_INIT1:%.*]] = insertelement <vscale x 4 x i32> poison, i32 22, i32 [[TMP14]]
; IF-EVL-NEXT:    [[TMP15:%.*]] = call i32 @llvm.vscale.i32()
; IF-EVL-NEXT:    [[TMP16:%.*]] = mul nuw i32 [[TMP15]], 4
; IF-EVL-NEXT:    [[TMP17:%.*]] = sub i32 [[TMP16]], 1
; IF-EVL-NEXT:    [[VECTOR_RECUR_INIT3:%.*]] = insertelement <vscale x 4 x i32> poison, i32 11, i32 [[TMP17]]
; IF-EVL-NEXT:    br label %[[VECTOR_BODY:.*]]
; IF-EVL:       [[VECTOR_BODY]]:
; IF-EVL-NEXT:    [[EVL_BASED_IV:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_EVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[VECTOR_RECUR:%.*]] = phi <vscale x 4 x i32> [ [[VECTOR_RECUR_INIT]], %[[VECTOR_PH]] ], [ [[VP_OP_LOAD:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[VECTOR_RECUR2:%.*]] = phi <vscale x 4 x i32> [ [[VECTOR_RECUR_INIT1]], %[[VECTOR_PH]] ], [ [[TMP22:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[VECTOR_RECUR4:%.*]] = phi <vscale x 4 x i32> [ [[VECTOR_RECUR_INIT3]], %[[VECTOR_PH]] ], [ [[TMP23:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[AVL:%.*]] = phi i64 [ [[TC]], %[[VECTOR_PH]] ], [ [[AVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[PREV_EVL:%.*]] = phi i32 [ [[TMP39]], %[[VECTOR_PH]] ], [ [[TMP18:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[TMP18]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 4, i1 true)
; IF-EVL-NEXT:    [[TMP20:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[EVL_BASED_IV]]
; IF-EVL-NEXT:    [[VP_OP_LOAD]] = call <vscale x 4 x i32> @llvm.vp.load.nxv4i32.p0(ptr align 4 [[TMP20]], <vscale x 4 x i1> splat (i1 true), i32 [[TMP18]])
; IF-EVL-NEXT:    [[TMP22]] = call <vscale x 4 x i32> @llvm.experimental.vp.splice.nxv4i32(<vscale x 4 x i32> [[VECTOR_RECUR]], <vscale x 4 x i32> [[VP_OP_LOAD]], i32 -1, <vscale x 4 x i1> splat (i1 true), i32 [[PREV_EVL]], i32 [[TMP18]])
; IF-EVL-NEXT:    [[TMP23]] = call <vscale x 4 x i32> @llvm.experimental.vp.splice.nxv4i32(<vscale x 4 x i32> [[VECTOR_RECUR2]], <vscale x 4 x i32> [[TMP22]], i32 -1, <vscale x 4 x i1> splat (i1 true), i32 [[PREV_EVL]], i32 [[TMP18]])
; IF-EVL-NEXT:    [[TMP24:%.*]] = call <vscale x 4 x i32> @llvm.experimental.vp.splice.nxv4i32(<vscale x 4 x i32> [[VECTOR_RECUR4]], <vscale x 4 x i32> [[TMP23]], i32 -1, <vscale x 4 x i1> splat (i1 true), i32 [[PREV_EVL]], i32 [[TMP18]])
; IF-EVL-NEXT:    [[TMP40:%.*]] = add nsw <vscale x 4 x i32> [[TMP23]], [[TMP24]]
; IF-EVL-NEXT:    [[VP_OP5:%.*]] = add <vscale x 4 x i32> [[TMP40]], [[TMP22]]
; IF-EVL-NEXT:    [[TMP25:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[EVL_BASED_IV]]
; IF-EVL-NEXT:    call void @llvm.vp.store.nxv4i32.p0(<vscale x 4 x i32> [[VP_OP5]], ptr align 4 [[TMP25]], <vscale x 4 x i1> splat (i1 true), i32 [[TMP18]])
; IF-EVL-NEXT:    [[TMP27:%.*]] = zext i32 [[TMP18]] to i64
; IF-EVL-NEXT:    [[INDEX_EVL_NEXT]] = add i64 [[TMP27]], [[EVL_BASED_IV]]
; IF-EVL-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP27]]
; IF-EVL-NEXT:    [[TMP28:%.*]] = icmp eq i64 [[INDEX_EVL_NEXT]], [[TC]]
; IF-EVL-NEXT:    br i1 [[TMP28]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
; IF-EVL:       [[MIDDLE_BLOCK]]:
; IF-EVL-NEXT:    br label %[[FOR_END:.*]]
; IF-EVL:       [[SCALAR_PH]]:
; IF-EVL-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ 0, %[[ENTRY]] ]
; IF-EVL-NEXT:    [[SCALAR_RECUR_INIT:%.*]] = phi i32 [ 33, %[[ENTRY]] ]
; IF-EVL-NEXT:    [[SCALAR_RECUR_INIT5:%.*]] = phi i32 [ 22, %[[ENTRY]] ]
; IF-EVL-NEXT:    [[SCALAR_RECUR_INIT6:%.*]] = phi i32 [ 11, %[[ENTRY]] ]
; IF-EVL-NEXT:    br label %[[FOR_BODY:.*]]
; IF-EVL:       [[FOR_BODY]]:
; IF-EVL-NEXT:    [[INDVARS:%.*]] = phi i64 [ 0, %[[SCALAR_PH]] ], [ [[INDVARS_NEXT:%.*]], %[[FOR_BODY]] ]
; IF-EVL-NEXT:    [[FOR1:%.*]] = phi i32 [ 33, %[[SCALAR_PH]] ], [ [[TMP38:%.*]], %[[FOR_BODY]] ]
; IF-EVL-NEXT:    [[FOR2:%.*]] = phi i32 [ 22, %[[SCALAR_PH]] ], [ [[FOR1]], %[[FOR_BODY]] ]
; IF-EVL-NEXT:    [[FOR3:%.*]] = phi i32 [ 11, %[[SCALAR_PH]] ], [ [[FOR2]], %[[FOR_BODY]] ]
; IF-EVL-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[INDVARS]]
; IF-EVL-NEXT:    [[TMP38]] = load i32, ptr [[ARRAYIDX]], align 4
; IF-EVL-NEXT:    [[ADD:%.*]] = add nsw i32 [[FOR2]], [[FOR3]]
; IF-EVL-NEXT:    [[ADD1:%.*]] = add i32 [[ADD]], [[FOR1]]
; IF-EVL-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[INDVARS]]
; IF-EVL-NEXT:    store i32 [[ADD1]], ptr [[ARRAYIDX2]], align 4
; IF-EVL-NEXT:    [[INDVARS_NEXT]] = add nuw nsw i64 [[INDVARS]], 1
; IF-EVL-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INDVARS_NEXT]], [[TC]]
; IF-EVL-NEXT:    br i1 [[EXITCOND_NOT]], label %[[FOR_END]], label %[[FOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
; IF-EVL:       [[FOR_END]]:
; IF-EVL-NEXT:    ret void
;
; NO-VP-LABEL: define void @third_order_recurrence(
; NO-VP-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[TC:%.*]]) #[[ATTR0]] {
; NO-VP-NEXT:  [[ENTRY:.*]]:
; NO-VP-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; NO-VP-NEXT:    [[TMP1:%.*]] = mul nuw i64 [[TMP0]], 4
; NO-VP-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TC]], [[TMP1]]
; NO-VP-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; NO-VP:       [[VECTOR_PH]]:
; NO-VP-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; NO-VP-NEXT:    [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 4
; NO-VP-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[TC]], [[TMP3]]
; NO-VP-NEXT:    [[N_VEC:%.*]] = sub i64 [[TC]], [[N_MOD_VF]]
; NO-VP-NEXT:    [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
; NO-VP-NEXT:    [[TMP5:%.*]] = mul nuw i64 [[TMP4]], 4
; NO-VP-NEXT:    [[TMP6:%.*]] = call i32 @llvm.vscale.i32()
; NO-VP-NEXT:    [[TMP7:%.*]] = mul nuw i32 [[TMP6]], 4
; NO-VP-NEXT:    [[TMP8:%.*]] = sub i32 [[TMP7]], 1
; NO-VP-NEXT:    [[VECTOR_RECUR_INIT:%.*]] = insertelement <vscale x 4 x i32> poison, i32 33, i32 [[TMP8]]
; NO-VP-NEXT:    [[TMP9:%.*]] = call i32 @llvm.vscale.i32()
; NO-VP-NEXT:    [[TMP10:%.*]] = mul nuw i32 [[TMP9]], 4
; NO-VP-NEXT:    [[TMP11:%.*]] = sub i32 [[TMP10]], 1
; NO-VP-NEXT:    [[VECTOR_RECUR_INIT1:%.*]] = insertelement <vscale x 4 x i32> poison, i32 22, i32 [[TMP11]]
; NO-VP-NEXT:    [[TMP12:%.*]] = call i32 @llvm.vscale.i32()
; NO-VP-NEXT:    [[TMP13:%.*]] = mul nuw i32 [[TMP12]], 4
; NO-VP-NEXT:    [[TMP14:%.*]] = sub i32 [[TMP13]], 1
; NO-VP-NEXT:    [[VECTOR_RECUR_INIT3:%.*]] = insertelement <vscale x 4 x i32> poison, i32 11, i32 [[TMP14]]
; NO-VP-NEXT:    br label %[[VECTOR_BODY:.*]]
; NO-VP:       [[VECTOR_BODY]]:
; NO-VP-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; NO-VP-NEXT:    [[VECTOR_RECUR:%.*]] = phi <vscale x 4 x i32> [ [[VECTOR_RECUR_INIT]], %[[VECTOR_PH]] ], [ [[WIDE_LOAD:%.*]], %[[VECTOR_BODY]] ]
; NO-VP-NEXT:    [[VECTOR_RECUR2:%.*]] = phi <vscale x 4 x i32> [ [[VECTOR_RECUR_INIT1]], %[[VECTOR_PH]] ], [ [[TMP18:%.*]], %[[VECTOR_BODY]] ]
; NO-VP-NEXT:    [[VECTOR_RECUR4:%.*]] = phi <vscale x 4 x i32> [ [[VECTOR_RECUR_INIT3]], %[[VECTOR_PH]] ], [ [[TMP19:%.*]], %[[VECTOR_BODY]] ]
; NO-VP-NEXT:    [[TMP16:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[INDEX]]
; NO-VP-NEXT:    [[WIDE_LOAD]] = load <vscale x 4 x i32>, ptr [[TMP16]], align 4
; NO-VP-NEXT:    [[TMP18]] = call <vscale x 4 x i32> @llvm.vector.splice.nxv4i32(<vscale x 4 x i32> [[VECTOR_RECUR]], <vscale x 4 x i32> [[WIDE_LOAD]], i32 -1)
; NO-VP-NEXT:    [[TMP19]] = call <vscale x 4 x i32> @llvm.vector.splice.nxv4i32(<vscale x 4 x i32> [[VECTOR_RECUR2]], <vscale x 4 x i32> [[TMP18]], i32 -1)
; NO-VP-NEXT:    [[TMP20:%.*]] = call <vscale x 4 x i32> @llvm.vector.splice.nxv4i32(<vscale x 4 x i32> [[VECTOR_RECUR4]], <vscale x 4 x i32> [[TMP19]], i32 -1)
; NO-VP-NEXT:    [[TMP21:%.*]] = add nsw <vscale x 4 x i32> [[TMP19]], [[TMP20]]
; NO-VP-NEXT:    [[TMP22:%.*]] = add <vscale x 4 x i32> [[TMP21]], [[TMP18]]
; NO-VP-NEXT:    [[TMP23:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[INDEX]]
; NO-VP-NEXT:    store <vscale x 4 x i32> [[TMP22]], ptr [[TMP23]], align 4
; NO-VP-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
; NO-VP-NEXT:    [[TMP25:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; NO-VP-NEXT:    br i1 [[TMP25]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
; NO-VP:       [[MIDDLE_BLOCK]]:
; NO-VP-NEXT:    [[TMP26:%.*]] = call i32 @llvm.vscale.i32()
; NO-VP-NEXT:    [[TMP27:%.*]] = mul nuw i32 [[TMP26]], 4
; NO-VP-NEXT:    [[TMP28:%.*]] = sub i32 [[TMP27]], 1
; NO-VP-NEXT:    [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <vscale x 4 x i32> [[WIDE_LOAD]], i32 [[TMP28]]
; NO-VP-NEXT:    [[TMP29:%.*]] = call i32 @llvm.vscale.i32()
; NO-VP-NEXT:    [[TMP30:%.*]] = mul nuw i32 [[TMP29]], 4
; NO-VP-NEXT:    [[TMP31:%.*]] = sub i32 [[TMP30]], 1
; NO-VP-NEXT:    [[VECTOR_RECUR_EXTRACT5:%.*]] = extractelement <vscale x 4 x i32> [[TMP18]], i32 [[TMP31]]
; NO-VP-NEXT:    [[TMP32:%.*]] = call i32 @llvm.vscale.i32()
; NO-VP-NEXT:    [[TMP33:%.*]] = mul nuw i32 [[TMP32]], 4
; NO-VP-NEXT:    [[TMP34:%.*]] = sub i32 [[TMP33]], 1
; NO-VP-NEXT:    [[VECTOR_RECUR_EXTRACT6:%.*]] = extractelement <vscale x 4 x i32> [[TMP19]], i32 [[TMP34]]
; NO-VP-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TC]], [[N_VEC]]
; NO-VP-NEXT:    br i1 [[CMP_N]], label %[[FOR_END:.*]], label %[[SCALAR_PH]]
; NO-VP:       [[SCALAR_PH]]:
; NO-VP-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; NO-VP-NEXT:    [[SCALAR_RECUR_INIT:%.*]] = phi i32 [ [[VECTOR_RECUR_EXTRACT]], %[[MIDDLE_BLOCK]] ], [ 33, %[[ENTRY]] ]
; NO-VP-NEXT:    [[SCALAR_RECUR_INIT7:%.*]] = phi i32 [ [[VECTOR_RECUR_EXTRACT5]], %[[MIDDLE_BLOCK]] ], [ 22, %[[ENTRY]] ]
; NO-VP-NEXT:    [[SCALAR_RECUR_INIT8:%.*]] = phi i32 [ [[VECTOR_RECUR_EXTRACT6]], %[[MIDDLE_BLOCK]] ], [ 11, %[[ENTRY]] ]
; NO-VP-NEXT:    br label %[[FOR_BODY:.*]]
; NO-VP:       [[FOR_BODY]]:
; NO-VP-NEXT:    [[INDVARS:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[INDVARS_NEXT:%.*]], %[[FOR_BODY]] ]
; NO-VP-NEXT:    [[FOR1:%.*]] = phi i32 [ [[SCALAR_RECUR_INIT]], %[[SCALAR_PH]] ], [ [[TMP35:%.*]], %[[FOR_BODY]] ]
; NO-VP-NEXT:    [[FOR2:%.*]] = phi i32 [ [[SCALAR_RECUR_INIT7]], %[[SCALAR_PH]] ], [ [[FOR1]], %[[FOR_BODY]] ]
; NO-VP-NEXT:    [[FOR3:%.*]] = phi i32 [ [[SCALAR_RECUR_INIT8]], %[[SCALAR_PH]] ], [ [[FOR2]], %[[FOR_BODY]] ]
; NO-VP-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[INDVARS]]
; NO-VP-NEXT:    [[TMP35]] = load i32, ptr [[ARRAYIDX]], align 4
; NO-VP-NEXT:    [[ADD:%.*]] = add nsw i32 [[FOR2]], [[FOR3]]
; NO-VP-NEXT:    [[ADD1:%.*]] = add i32 [[ADD]], [[FOR1]]
; NO-VP-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[INDVARS]]
; NO-VP-NEXT:    store i32 [[ADD1]], ptr [[ARRAYIDX2]], align 4
; NO-VP-NEXT:    [[INDVARS_NEXT]] = add nuw nsw i64 [[INDVARS]], 1
; NO-VP-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INDVARS_NEXT]], [[TC]]
; NO-VP-NEXT:    br i1 [[EXITCOND_NOT]], label %[[FOR_END]], label %[[FOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
; NO-VP:       [[FOR_END]]:
; NO-VP-NEXT:    ret void
;
entry:
  br label %for.body

for.body:
  %indvars = phi i64 [ 0, %entry ], [ %indvars.next, %for.body ]
  %for1 = phi i32 [ 33, %entry ], [ %0, %for.body ]
  %for2 = phi i32 [ 22, %entry ], [ %for1, %for.body ]
  %for3 = phi i32 [ 11, %entry ], [ %for2, %for.body ]
  %arrayidx = getelementptr inbounds nuw i32, ptr %A, i64 %indvars
  %0 = load i32, ptr %arrayidx, align 4
  %add = add nsw i32 %for2, %for3
  %add1 = add i32 %add, %for1
  %arrayidx2 = getelementptr inbounds nuw i32, ptr %B, i64 %indvars
  store i32 %add1, ptr %arrayidx2, align 4
  %indvars.next = add nuw nsw i64 %indvars, 1
  %exitcond.not = icmp eq i64 %indvars.next, %TC
  br i1 %exitcond.not, label %for.end, label %for.body, !llvm.loop !0

for.end:
  ret void
}

define i32 @FOR_reduction(ptr noalias %A, ptr noalias %B, i64 %TC) {
; IF-EVL-LABEL: define i32 @FOR_reduction(
; IF-EVL-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[TC:%.*]]) #[[ATTR0]] {
; IF-EVL-NEXT:  [[ENTRY:.*]]:
; IF-EVL-NEXT:    [[TMP9:%.*]] = call i64 @llvm.vscale.i64()
; IF-EVL-NEXT:    [[TMP1:%.*]] = mul nuw i64 [[TMP9]], 4
; IF-EVL-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TC]], [[TMP1]]
; IF-EVL-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; IF-EVL:       [[VECTOR_PH]]:
; IF-EVL-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; IF-EVL-NEXT:    [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 4
; IF-EVL-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[TC]], [[TMP3]]
; IF-EVL-NEXT:    [[N_VEC:%.*]] = sub i64 [[TC]], [[N_MOD_VF]]
; IF-EVL-NEXT:    [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
; IF-EVL-NEXT:    [[TMP5:%.*]] = mul nuw i64 [[TMP4]], 4
; IF-EVL-NEXT:    [[TMP6:%.*]] = call i32 @llvm.vscale.i32()
; IF-EVL-NEXT:    [[TMP7:%.*]] = mul nuw i32 [[TMP6]], 4
; IF-EVL-NEXT:    [[TMP8:%.*]] = sub i32 [[TMP7]], 1
; IF-EVL-NEXT:    [[VECTOR_RECUR_INIT:%.*]] = insertelement <vscale x 4 x i32> poison, i32 33, i32 [[TMP8]]
; IF-EVL-NEXT:    br label %[[VECTOR_BODY:.*]]
; IF-EVL:       [[VECTOR_BODY]]:
; IF-EVL-NEXT:    [[INDVARS:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[VECTOR_RECUR:%.*]] = phi <vscale x 4 x i32> [ [[VECTOR_RECUR_INIT]], %[[VECTOR_PH]] ], [ [[WIDE_LOAD:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[INDVARS]]
; IF-EVL-NEXT:    [[WIDE_LOAD]] = load <vscale x 4 x i32>, ptr [[ARRAYIDX]], align 4
; IF-EVL-NEXT:    [[TMP10:%.*]] = call <vscale x 4 x i32> @llvm.vector.splice.nxv4i32(<vscale x 4 x i32> [[VECTOR_RECUR]], <vscale x 4 x i32> [[WIDE_LOAD]], i32 -1)
; IF-EVL-NEXT:    [[TMP11:%.*]] = add nsw <vscale x 4 x i32> [[TMP10]], [[WIDE_LOAD]]
; IF-EVL-NEXT:    [[TMP12:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[INDVARS]]
; IF-EVL-NEXT:    store <vscale x 4 x i32> [[TMP11]], ptr [[TMP12]], align 4
; IF-EVL-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDVARS]], [[TMP5]]
; IF-EVL-NEXT:    [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; IF-EVL-NEXT:    br i1 [[TMP13]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]]
; IF-EVL:       [[MIDDLE_BLOCK]]:
; IF-EVL-NEXT:    [[TMP14:%.*]] = call i32 @llvm.vscale.i32()
; IF-EVL-NEXT:    [[TMP15:%.*]] = mul nuw i32 [[TMP14]], 4
; IF-EVL-NEXT:    [[TMP16:%.*]] = sub i32 [[TMP15]], 1
; IF-EVL-NEXT:    [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <vscale x 4 x i32> [[WIDE_LOAD]], i32 [[TMP16]]
; IF-EVL-NEXT:    [[TMP17:%.*]] = call i32 @llvm.vscale.i32()
; IF-EVL-NEXT:    [[TMP18:%.*]] = mul nuw i32 [[TMP17]], 4
; IF-EVL-NEXT:    [[TMP19:%.*]] = sub i32 [[TMP18]], 2
; IF-EVL-NEXT:    [[VECTOR_RECUR_EXTRACT_FOR_PHI:%.*]] = extractelement <vscale x 4 x i32> [[WIDE_LOAD]], i32 [[TMP19]]
; IF-EVL-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TC]], [[N_VEC]]
; IF-EVL-NEXT:    br i1 [[CMP_N]], label %[[FOR_END:.*]], label %[[SCALAR_PH]]
; IF-EVL:       [[SCALAR_PH]]:
; IF-EVL-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; IF-EVL-NEXT:    [[SCALAR_RECUR_INIT:%.*]] = phi i32 [ [[VECTOR_RECUR_EXTRACT]], %[[MIDDLE_BLOCK]] ], [ 33, %[[ENTRY]] ]
; IF-EVL-NEXT:    br label %[[FOR_BODY:.*]]
; IF-EVL:       [[FOR_BODY]]:
; IF-EVL-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[INDVARS_NEXT:%.*]], %[[FOR_BODY]] ]
; IF-EVL-NEXT:    [[FOR1:%.*]] = phi i32 [ [[SCALAR_RECUR_INIT]], %[[SCALAR_PH]] ], [ [[TMP0:%.*]], %[[FOR_BODY]] ]
; IF-EVL-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[IV]]
; IF-EVL-NEXT:    [[TMP0]] = load i32, ptr [[ARRAYIDX1]], align 4
; IF-EVL-NEXT:    [[ADD:%.*]] = add nsw i32 [[FOR1]], [[TMP0]]
; IF-EVL-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[IV]]
; IF-EVL-NEXT:    store i32 [[ADD]], ptr [[ARRAYIDX2]], align 4
; IF-EVL-NEXT:    [[INDVARS_NEXT]] = add nuw nsw i64 [[IV]], 1
; IF-EVL-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INDVARS_NEXT]], [[TC]]
; IF-EVL-NEXT:    br i1 [[EXITCOND_NOT]], label %[[FOR_END]], label %[[FOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
; IF-EVL:       [[FOR_END]]:
; IF-EVL-NEXT:    [[FOR1_LCSSA:%.*]] = phi i32 [ [[FOR1]], %[[FOR_BODY]] ], [ [[VECTOR_RECUR_EXTRACT_FOR_PHI]], %[[MIDDLE_BLOCK]] ]
; IF-EVL-NEXT:    ret i32 [[FOR1_LCSSA]]
;
; NO-VP-LABEL: define i32 @FOR_reduction(
; NO-VP-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[TC:%.*]]) #[[ATTR0]] {
; NO-VP-NEXT:  [[ENTRY:.*]]:
; NO-VP-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; NO-VP-NEXT:    [[TMP1:%.*]] = mul nuw i64 [[TMP0]], 4
; NO-VP-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TC]], [[TMP1]]
; NO-VP-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; NO-VP:       [[VECTOR_PH]]:
; NO-VP-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; NO-VP-NEXT:    [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 4
; NO-VP-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[TC]], [[TMP3]]
; NO-VP-NEXT:    [[N_VEC:%.*]] = sub i64 [[TC]], [[N_MOD_VF]]
; NO-VP-NEXT:    [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
; NO-VP-NEXT:    [[TMP5:%.*]] = mul nuw i64 [[TMP4]], 4
; NO-VP-NEXT:    [[TMP6:%.*]] = call i32 @llvm.vscale.i32()
; NO-VP-NEXT:    [[TMP7:%.*]] = mul nuw i32 [[TMP6]], 4
; NO-VP-NEXT:    [[TMP8:%.*]] = sub i32 [[TMP7]], 1
; NO-VP-NEXT:    [[VECTOR_RECUR_INIT:%.*]] = insertelement <vscale x 4 x i32> poison, i32 33, i32 [[TMP8]]
; NO-VP-NEXT:    br label %[[VECTOR_BODY:.*]]
; NO-VP:       [[VECTOR_BODY]]:
; NO-VP-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; NO-VP-NEXT:    [[VECTOR_RECUR:%.*]] = phi <vscale x 4 x i32> [ [[VECTOR_RECUR_INIT]], %[[VECTOR_PH]] ], [ [[WIDE_LOAD:%.*]], %[[VECTOR_BODY]] ]
; NO-VP-NEXT:    [[TMP10:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[INDEX]]
; NO-VP-NEXT:    [[WIDE_LOAD]] = load <vscale x 4 x i32>, ptr [[TMP10]], align 4
; NO-VP-NEXT:    [[TMP12:%.*]] = call <vscale x 4 x i32> @llvm.vector.splice.nxv4i32(<vscale x 4 x i32> [[VECTOR_RECUR]], <vscale x 4 x i32> [[WIDE_LOAD]], i32 -1)
; NO-VP-NEXT:    [[TMP13:%.*]] = add nsw <vscale x 4 x i32> [[TMP12]], [[WIDE_LOAD]]
; NO-VP-NEXT:    [[TMP14:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[INDEX]]
; NO-VP-NEXT:    store <vscale x 4 x i32> [[TMP13]], ptr [[TMP14]], align 4
; NO-VP-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
; NO-VP-NEXT:    [[TMP16:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; NO-VP-NEXT:    br i1 [[TMP16]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
; NO-VP:       [[MIDDLE_BLOCK]]:
; NO-VP-NEXT:    [[TMP17:%.*]] = call i32 @llvm.vscale.i32()
; NO-VP-NEXT:    [[TMP18:%.*]] = mul nuw i32 [[TMP17]], 4
; NO-VP-NEXT:    [[TMP19:%.*]] = sub i32 [[TMP18]], 1
; NO-VP-NEXT:    [[VECTOR_RECUR_EXTRACT_FOR_PHI:%.*]] = extractelement <vscale x 4 x i32> [[WIDE_LOAD]], i32 [[TMP19]]
; NO-VP-NEXT:    [[TMP20:%.*]] = call i32 @llvm.vscale.i32()
; NO-VP-NEXT:    [[TMP21:%.*]] = mul nuw i32 [[TMP20]], 4
; NO-VP-NEXT:    [[TMP22:%.*]] = sub i32 [[TMP21]], 2
; NO-VP-NEXT:    [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <vscale x 4 x i32> [[WIDE_LOAD]], i32 [[TMP22]]
; NO-VP-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TC]], [[N_VEC]]
; NO-VP-NEXT:    br i1 [[CMP_N]], label %[[FOR_END:.*]], label %[[SCALAR_PH]]
; NO-VP:       [[SCALAR_PH]]:
; NO-VP-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; NO-VP-NEXT:    [[SCALAR_RECUR_INIT:%.*]] = phi i32 [ [[VECTOR_RECUR_EXTRACT_FOR_PHI]], %[[MIDDLE_BLOCK]] ], [ 33, %[[ENTRY]] ]
; NO-VP-NEXT:    br label %[[FOR_BODY:.*]]
; NO-VP:       [[FOR_BODY]]:
; NO-VP-NEXT:    [[INDVARS:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[INDVARS_NEXT:%.*]], %[[FOR_BODY]] ]
; NO-VP-NEXT:    [[FOR1:%.*]] = phi i32 [ [[SCALAR_RECUR_INIT]], %[[SCALAR_PH]] ], [ [[TMP23:%.*]], %[[FOR_BODY]] ]
; NO-VP-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[INDVARS]]
; NO-VP-NEXT:    [[TMP23]] = load i32, ptr [[ARRAYIDX]], align 4
; NO-VP-NEXT:    [[ADD:%.*]] = add nsw i32 [[FOR1]], [[TMP23]]
; NO-VP-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[INDVARS]]
; NO-VP-NEXT:    store i32 [[ADD]], ptr [[ARRAYIDX2]], align 4
; NO-VP-NEXT:    [[INDVARS_NEXT]] = add nuw nsw i64 [[INDVARS]], 1
; NO-VP-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INDVARS_NEXT]], [[TC]]
; NO-VP-NEXT:    br i1 [[EXITCOND_NOT]], label %[[FOR_END]], label %[[FOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]]
; NO-VP:       [[FOR_END]]:
; NO-VP-NEXT:    [[FOR1_LCSSA:%.*]] = phi i32 [ [[FOR1]], %[[FOR_BODY]] ], [ [[VECTOR_RECUR_EXTRACT]], %[[MIDDLE_BLOCK]] ]
; NO-VP-NEXT:    ret i32 [[FOR1_LCSSA]]
;
entry:
  br label %for.body

for.body:
  %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
  %for1 = phi i32 [ 33, %entry ], [ %0, %for.body ]
  %arrayidx = getelementptr inbounds nuw i32, ptr %A, i64 %iv
  %0 = load i32, ptr %arrayidx, align 4
  %add = add nsw i32 %for1, %0
  %arrayidx2 = getelementptr inbounds nuw i32, ptr %B, i64 %iv
  store i32 %add, ptr %arrayidx2, align 4
  %iv.next = add nuw nsw i64 %iv, 1
  %exitcond.not = icmp eq i64 %iv.next, %TC
  br i1 %exitcond.not, label %for.end, label %for.body, !llvm.loop !0

for.end:
  ret i32 %for1
}

define void @first_order_recurrence_indvar(ptr noalias %A, i64 %TC) {
; IF-EVL-LABEL: define void @first_order_recurrence_indvar(
; IF-EVL-SAME: ptr noalias [[A:%.*]], i64 [[TC:%.*]]) #[[ATTR0]] {
; IF-EVL-NEXT:  [[ENTRY:.*]]:
; IF-EVL-NEXT:    br i1 false, label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; IF-EVL:       [[VECTOR_PH]]:
; IF-EVL-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; IF-EVL-NEXT:    [[TMP1:%.*]] = mul nuw i64 [[TMP0]], 2
; IF-EVL-NEXT:    [[TMP2:%.*]] = sub i64 [[TMP1]], 1
; IF-EVL-NEXT:    [[N_RND_UP:%.*]] = add i64 [[TC]], [[TMP2]]
; IF-EVL-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP1]]
; IF-EVL-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
; IF-EVL-NEXT:    [[TMP18:%.*]] = call i64 @llvm.vscale.i64()
; IF-EVL-NEXT:    [[TMP4:%.*]] = mul nuw i64 [[TMP18]], 2
; IF-EVL-NEXT:    [[TMP5:%.*]] = trunc i64 [[TMP4]] to i32
; IF-EVL-NEXT:    [[TMP6:%.*]] = call <vscale x 2 x i64> @llvm.stepvector.nxv2i64()
; IF-EVL-NEXT:    [[TMP12:%.*]] = mul <vscale x 2 x i64> [[TMP6]], splat (i64 1)
; IF-EVL-NEXT:    [[INDUCTION:%.*]] = add <vscale x 2 x i64> zeroinitializer, [[TMP12]]
; IF-EVL-NEXT:    [[TMP13:%.*]] = call i32 @llvm.vscale.i32()
; IF-EVL-NEXT:    [[TMP19:%.*]] = mul nuw i32 [[TMP13]], 2
; IF-EVL-NEXT:    [[TMP10:%.*]] = sub i32 [[TMP19]], 1
; IF-EVL-NEXT:    [[VECTOR_RECUR_INIT:%.*]] = insertelement <vscale x 2 x i64> poison, i64 33, i32 [[TMP10]]
; IF-EVL-NEXT:    br label %[[VECTOR_BODY:.*]]
; IF-EVL:       [[VECTOR_BODY]]:
; IF-EVL-NEXT:    [[EVL_BASED_IV:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_EVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[VEC_IND:%.*]] = phi <vscale x 2 x i64> [ [[INDUCTION]], %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[VECTOR_RECUR:%.*]] = phi <vscale x 2 x i64> [ [[VECTOR_RECUR_INIT]], %[[VECTOR_PH]] ], [ [[TMP20:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[AVL:%.*]] = phi i64 [ [[TC]], %[[VECTOR_PH]] ], [ [[AVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[PREV_EVL:%.*]] = phi i32 [ [[TMP5]], %[[VECTOR_PH]] ], [ [[TMP11:%.*]], %[[VECTOR_BODY]] ]
; IF-EVL-NEXT:    [[TMP11]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 2, i1 true)
; IF-EVL-NEXT:    [[TMP7:%.*]] = zext i32 [[TMP11]] to i64
; IF-EVL-NEXT:    [[TMP8:%.*]] = mul i64 1, [[TMP7]]
; IF-EVL-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 2 x i64> poison, i64 [[TMP8]], i64 0
; IF-EVL-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 2 x i64> [[BROADCAST_SPLATINSERT]], <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer
; IF-EVL-NEXT:    [[TMP20]] = add <vscale x 2 x i64> [[VEC_IND]], splat (i64 42)
; IF-EVL-NEXT:    [[TMP15:%.*]] = call <vscale x 2 x i64> @llvm.experimental.vp.splice.nxv2i64(<vscale x 2 x i64> [[VECTOR_RECUR]], <vscale x 2 x i64> [[TMP20]], i32 -1, <vscale x 2 x i1> splat (i1 true), i32 [[PREV_EVL]], i32 [[TMP11]])
; IF-EVL-NEXT:    [[TMP9:%.*]] = getelementptr inbounds nuw i64, ptr [[A]], i64 [[EVL_BASED_IV]]
; IF-EVL-NEXT:    call void @llvm.vp.store.nxv2i64.p0(<vscale x 2 x i64> [[TMP15]], ptr align 8 [[TMP9]], <vscale x 2 x i1> splat (i1 true), i32 [[TMP11]])
; IF-EVL-NEXT:    [[TMP21:%.*]] = zext i32 [[TMP11]] to i64
; IF-EVL-NEXT:    [[INDEX_EVL_NEXT]] = add i64 [[TMP21]], [[EVL_BASED_IV]]
; IF-EVL-NEXT:    [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP21]]
; IF-EVL-NEXT:    [[VEC_IND_NEXT]] = add <vscale x 2 x i64> [[VEC_IND]], [[BROADCAST_SPLAT]]
; IF-EVL-NEXT:    [[TMP22:%.*]] = icmp eq i64 [[INDEX_EVL_NEXT]], [[TC]]
; IF-EVL-NEXT:    br i1 [[TMP22]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP11:![0-9]+]]
; IF-EVL:       [[MIDDLE_BLOCK]]:
; IF-EVL-NEXT:    br label %[[FOR_END:.*]]
; IF-EVL:       [[SCALAR_PH]]:
; IF-EVL-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ 0, %[[ENTRY]] ]
; IF-EVL-NEXT:    [[SCALAR_RECUR_INIT:%.*]] = phi i64 [ 33, %[[ENTRY]] ]
; IF-EVL-NEXT:    br label %[[FOR_BODY:.*]]
; IF-EVL:       [[FOR_BODY]]:
; IF-EVL-NEXT:    [[IV1:%.*]] = phi i64 [ 0, %[[SCALAR_PH]] ], [ [[IV1_NEXT:%.*]], %[[FOR_BODY]] ]
; IF-EVL-NEXT:    [[FOR1:%.*]] = phi i64 [ 33, %[[SCALAR_PH]] ], [ [[TMP14:%.*]], %[[FOR_BODY]] ]
; IF-EVL-NEXT:    [[TMP14]] = add i64 [[IV1]], 42
; IF-EVL-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i64, ptr [[A]], i64 [[IV1]]
; IF-EVL-NEXT:    store i64 [[FOR1]], ptr [[ARRAYIDX]], align 8
; IF-EVL-NEXT:    [[IV1_NEXT]] = add nuw nsw i64 [[IV1]], 1
; IF-EVL-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV1_NEXT]], [[TC]]
; IF-EVL-NEXT:    br i1 [[EXITCOND_NOT]], label %[[FOR_END]], label %[[FOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
; IF-EVL:       [[FOR_END]]:
; IF-EVL-NEXT:    ret void
;
; NO-VP-LABEL: define void @first_order_recurrence_indvar(
; NO-VP-SAME: ptr noalias [[A:%.*]], i64 [[TC:%.*]]) #[[ATTR0]] {
; NO-VP-NEXT:  [[ENTRY:.*]]:
; NO-VP-NEXT:    [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; NO-VP-NEXT:    [[TMP1:%.*]] = mul nuw i64 [[TMP0]], 2
; NO-VP-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TC]], [[TMP1]]
; NO-VP-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; NO-VP:       [[VECTOR_PH]]:
; NO-VP-NEXT:    [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; NO-VP-NEXT:    [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 2
; NO-VP-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[TC]], [[TMP3]]
; NO-VP-NEXT:    [[N_VEC:%.*]] = sub i64 [[TC]], [[N_MOD_VF]]
; NO-VP-NEXT:    [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
; NO-VP-NEXT:    [[TMP9:%.*]] = mul nuw i64 [[TMP4]], 2
; NO-VP-NEXT:    [[TMP6:%.*]] = call <vscale x 2 x i64> @llvm.stepvector.nxv2i64()
; NO-VP-NEXT:    [[TMP7:%.*]] = mul <vscale x 2 x i64> [[TMP6]], splat (i64 1)
; NO-VP-NEXT:    [[INDUCTION:%.*]] = add <vscale x 2 x i64> zeroinitializer, [[TMP7]]
; NO-VP-NEXT:    [[TMP10:%.*]] = mul i64 1, [[TMP9]]
; NO-VP-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 2 x i64> poison, i64 [[TMP10]], i64 0
; NO-VP-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 2 x i64> [[BROADCAST_SPLATINSERT]], <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer
; NO-VP-NEXT:    [[TMP14:%.*]] = call i32 @llvm.vscale.i32()
; NO-VP-NEXT:    [[TMP16:%.*]] = mul nuw i32 [[TMP14]], 2
; NO-VP-NEXT:    [[TMP20:%.*]] = sub i32 [[TMP16]], 1
; NO-VP-NEXT:    [[VECTOR_RECUR_INIT:%.*]] = insertelement <vscale x 2 x i64> poison, i64 33, i32 [[TMP20]]
; NO-VP-NEXT:    br label %[[VECTOR_BODY:.*]]
; NO-VP:       [[VECTOR_BODY]]:
; NO-VP-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; NO-VP-NEXT:    [[VEC_IND:%.*]] = phi <vscale x 2 x i64> [ [[INDUCTION]], %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; NO-VP-NEXT:    [[VECTOR_RECUR:%.*]] = phi <vscale x 2 x i64> [ [[VECTOR_RECUR_INIT]], %[[VECTOR_PH]] ], [ [[TMP12:%.*]], %[[VECTOR_BODY]] ]
; NO-VP-NEXT:    [[TMP12]] = add <vscale x 2 x i64> [[VEC_IND]], splat (i64 42)
; NO-VP-NEXT:    [[TMP13:%.*]] = call <vscale x 2 x i64> @llvm.vector.splice.nxv2i64(<vscale x 2 x i64> [[VECTOR_RECUR]], <vscale x 2 x i64> [[TMP12]], i32 -1)
; NO-VP-NEXT:    [[TMP11:%.*]] = getelementptr inbounds nuw i64, ptr [[A]], i64 [[INDEX]]
; NO-VP-NEXT:    store <vscale x 2 x i64> [[TMP13]], ptr [[TMP11]], align 8
; NO-VP-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP9]]
; NO-VP-NEXT:    [[VEC_IND_NEXT]] = add <vscale x 2 x i64> [[VEC_IND]], [[BROADCAST_SPLAT]]
; NO-VP-NEXT:    [[TMP23:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; NO-VP-NEXT:    br i1 [[TMP23]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
; NO-VP:       [[MIDDLE_BLOCK]]:
; NO-VP-NEXT:    [[TMP17:%.*]] = call i32 @llvm.vscale.i32()
; NO-VP-NEXT:    [[TMP21:%.*]] = mul nuw i32 [[TMP17]], 2
; NO-VP-NEXT:    [[TMP19:%.*]] = sub i32 [[TMP21]], 1
; NO-VP-NEXT:    [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <vscale x 2 x i64> [[TMP12]], i32 [[TMP19]]
; NO-VP-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TC]], [[N_VEC]]
; NO-VP-NEXT:    br i1 [[CMP_N]], label %[[FOR_END:.*]], label %[[SCALAR_PH]]
; NO-VP:       [[SCALAR_PH]]:
; NO-VP-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; NO-VP-NEXT:    [[SCALAR_RECUR_INIT:%.*]] = phi i64 [ [[VECTOR_RECUR_EXTRACT]], %[[MIDDLE_BLOCK]] ], [ 33, %[[ENTRY]] ]
; NO-VP-NEXT:    br label %[[FOR_BODY:.*]]
; NO-VP:       [[FOR_BODY]]:
; NO-VP-NEXT:    [[IV1:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV1_NEXT:%.*]], %[[FOR_BODY]] ]
; NO-VP-NEXT:    [[FOR1:%.*]] = phi i64 [ [[SCALAR_RECUR_INIT]], %[[SCALAR_PH]] ], [ [[TMP18:%.*]], %[[FOR_BODY]] ]
; NO-VP-NEXT:    [[TMP18]] = add i64 [[IV1]], 42
; NO-VP-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i64, ptr [[A]], i64 [[IV1]]
; NO-VP-NEXT:    store i64 [[FOR1]], ptr [[ARRAYIDX]], align 8
; NO-VP-NEXT:    [[IV1_NEXT]] = add nuw nsw i64 [[IV1]], 1
; NO-VP-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV1_NEXT]], [[TC]]
; NO-VP-NEXT:    br i1 [[EXITCOND_NOT]], label %[[FOR_END]], label %[[FOR_BODY]], !llvm.loop [[LOOP11:![0-9]+]]
; NO-VP:       [[FOR_END]]:
; NO-VP-NEXT:    ret void
;
entry:
  br label %for.body

for.body:
  %indvars = phi i64 [ 0, %entry ], [ %indvars.next, %for.body ]
  %for1 = phi i64 [ 33, %entry ], [ %x, %for.body ]

  %x = add i64 %indvars, 42

  %arrayidx = getelementptr inbounds nuw i64, ptr %A, i64 %indvars
  store i64 %for1, ptr %arrayidx

  %indvars.next = add nuw nsw i64 %indvars, 1
  %exitcond.not = icmp eq i64 %indvars.next, %TC
  br i1 %exitcond.not, label %for.end, label %for.body, !llvm.loop !0

for.end:
  ret void
}

!0 = distinct !{!0, !1}
!1 = !{!"llvm.loop.vectorize.enable", i1 true}
;.
; IF-EVL: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]], [[META3:![0-9]+]]}
; IF-EVL: [[META1]] = !{!"llvm.loop.isvectorized", i32 1}
; IF-EVL: [[META2]] = !{!"llvm.loop.isvectorized.tailfoldingstyle", !"evl"}
; IF-EVL: [[META3]] = !{!"llvm.loop.unroll.runtime.disable"}
; IF-EVL: [[LOOP4]] = distinct !{[[LOOP4]], [[META3]], [[META1]]}
; IF-EVL: [[LOOP5]] = distinct !{[[LOOP5]], [[META1]], [[META2]], [[META3]]}
; IF-EVL: [[LOOP6]] = distinct !{[[LOOP6]], [[META3]], [[META1]]}
; IF-EVL: [[LOOP7]] = distinct !{[[LOOP7]], [[META1]], [[META2]], [[META3]]}
; IF-EVL: [[LOOP8]] = distinct !{[[LOOP8]], [[META3]], [[META1]]}
; IF-EVL: [[LOOP9]] = distinct !{[[LOOP9]], [[META1]], [[META3]]}
; IF-EVL: [[LOOP10]] = distinct !{[[LOOP10]], [[META3]], [[META1]]}
; IF-EVL: [[LOOP11]] = distinct !{[[LOOP11]], [[META1]], [[META2]], [[META3]]}
; IF-EVL: [[LOOP12]] = distinct !{[[LOOP12]], [[META3]], [[META1]]}
;.
; NO-VP: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]}
; NO-VP: [[META1]] = !{!"llvm.loop.isvectorized", i32 1}
; NO-VP: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"}
; NO-VP: [[LOOP3]] = distinct !{[[LOOP3]], [[META2]], [[META1]]}
; NO-VP: [[LOOP4]] = distinct !{[[LOOP4]], [[META1]], [[META2]]}
; NO-VP: [[LOOP5]] = distinct !{[[LOOP5]], [[META2]], [[META1]]}
; NO-VP: [[LOOP6]] = distinct !{[[LOOP6]], [[META1]], [[META2]]}
; NO-VP: [[LOOP7]] = distinct !{[[LOOP7]], [[META2]], [[META1]]}
; NO-VP: [[LOOP8]] = distinct !{[[LOOP8]], [[META1]], [[META2]]}
; NO-VP: [[LOOP9]] = distinct !{[[LOOP9]], [[META2]], [[META1]]}
; NO-VP: [[LOOP10]] = distinct !{[[LOOP10]], [[META1]], [[META2]]}
; NO-VP: [[LOOP11]] = distinct !{[[LOOP11]], [[META2]], [[META1]]}
;.