; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals none --version 5
; RUN: opt -passes=loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -S < %s | FileCheck %s --check-prefix=CHECK-VF4IC1
; RUN: opt -passes=loop-vectorize -force-vector-interleave=4 -force-vector-width=4 -S < %s | FileCheck %s --check-prefix=CHECK-VF4IC4
; RUN: opt -passes=loop-vectorize -force-vector-interleave=4 -force-vector-width=1 -S < %s | FileCheck %s --check-prefix=CHECK-VF1IC4

define i64 @select_icmp_const_1(ptr %a, i64 %n) {
; CHECK-VF4IC1-LABEL: define i64 @select_icmp_const_1(
; CHECK-VF4IC1-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC1-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC1-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC1:       [[VECTOR_PH]]:
; CHECK-VF4IC1-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC1-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC1:       [[VECTOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP4:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP1]], align 8
; CHECK-VF4IC1-NEXT:    [[TMP3:%.*]] = icmp eq <4 x i64> [[WIDE_LOAD]], splat (i64 3)
; CHECK-VF4IC1-NEXT:    [[TMP4]] = select <4 x i1> [[TMP3]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF4IC1-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC1-NEXT:    [[TMP5:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[TMP5]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK-VF4IC1:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC1-NEXT:    [[TMP6:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[TMP4]])
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP6]], -9223372036854775808
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP6]], i64 3
; CHECK-VF4IC1-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC1:       [[SCALAR_PH]]:
; CHECK-VF4IC1-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ 3, %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC1:       [[FOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC1-NEXT:    [[TMP7:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF4IC1-NEXT:    [[CMP2:%.*]] = icmp eq i64 [[TMP7]], 3
; CHECK-VF4IC1-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF4IC1-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF4IC1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC1-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
; CHECK-VF4IC1:       [[EXIT]]:
; CHECK-VF4IC1-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC1-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF4IC4-LABEL: define i64 @select_icmp_const_1(
; CHECK-VF4IC4-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC4:       [[VECTOR_PH]]:
; CHECK-VF4IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC4:       [[VECTOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP10:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI1:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP11:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI2:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP12:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI3:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP13:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[STEP_ADD:%.*]] = add nuw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_2:%.*]] = add nuw <4 x i64> [[STEP_ADD]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_3:%.*]] = add nuw <4 x i64> [[STEP_ADD_2]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC4-NEXT:    [[TMP3:%.*]] = getelementptr inbounds i64, ptr [[TMP1]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[TMP1]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[TMP1]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP1]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD4:%.*]] = load <4 x i64>, ptr [[TMP3]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD5:%.*]] = load <4 x i64>, ptr [[TMP4]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD6:%.*]] = load <4 x i64>, ptr [[TMP5]], align 8
; CHECK-VF4IC4-NEXT:    [[TMP6:%.*]] = icmp eq <4 x i64> [[WIDE_LOAD]], splat (i64 3)
; CHECK-VF4IC4-NEXT:    [[TMP7:%.*]] = icmp eq <4 x i64> [[WIDE_LOAD4]], splat (i64 3)
; CHECK-VF4IC4-NEXT:    [[TMP8:%.*]] = icmp eq <4 x i64> [[WIDE_LOAD5]], splat (i64 3)
; CHECK-VF4IC4-NEXT:    [[TMP9:%.*]] = icmp eq <4 x i64> [[WIDE_LOAD6]], splat (i64 3)
; CHECK-VF4IC4-NEXT:    [[TMP10]] = select <4 x i1> [[TMP6]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC4-NEXT:    [[TMP11]] = select <4 x i1> [[TMP7]], <4 x i64> [[STEP_ADD]], <4 x i64> [[VEC_PHI1]]
; CHECK-VF4IC4-NEXT:    [[TMP12]] = select <4 x i1> [[TMP8]], <4 x i64> [[STEP_ADD_2]], <4 x i64> [[VEC_PHI2]]
; CHECK-VF4IC4-NEXT:    [[TMP13]] = select <4 x i1> [[TMP9]], <4 x i64> [[STEP_ADD_3]], <4 x i64> [[VEC_PHI3]]
; CHECK-VF4IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; CHECK-VF4IC4-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[STEP_ADD_3]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[TMP14]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK-VF4IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[TMP10]], <4 x i64> [[TMP11]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX7:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX]], <4 x i64> [[TMP12]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX8:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX7]], <4 x i64> [[TMP13]])
; CHECK-VF4IC4-NEXT:    [[TMP15:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[RDX_MINMAX8]])
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP15]], -9223372036854775808
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP15]], i64 3
; CHECK-VF4IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC4:       [[SCALAR_PH]]:
; CHECK-VF4IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ 3, %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC4:       [[FOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC4-NEXT:    [[TMP16:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF4IC4-NEXT:    [[CMP2:%.*]] = icmp eq i64 [[TMP16]], 3
; CHECK-VF4IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF4IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF4IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
; CHECK-VF4IC4:       [[EXIT]]:
; CHECK-VF4IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF1IC4-LABEL: define i64 @select_icmp_const_1(
; CHECK-VF1IC4-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) {
; CHECK-VF1IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF1IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF1IC4:       [[VECTOR_PH]]:
; CHECK-VF1IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF1IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF1IC4:       [[VECTOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP16:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI1:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP17:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI2:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP18:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI3:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP19:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 1
; CHECK-VF1IC4-NEXT:    [[TMP2:%.*]] = add i64 [[INDEX]], 2
; CHECK-VF1IC4-NEXT:    [[TMP3:%.*]] = add i64 [[INDEX]], 3
; CHECK-VF1IC4-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
; CHECK-VF1IC4-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP1]]
; CHECK-VF1IC4-NEXT:    [[TMP6:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP2]]
; CHECK-VF1IC4-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP3]]
; CHECK-VF1IC4-NEXT:    [[TMP8:%.*]] = load i64, ptr [[TMP4]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP9:%.*]] = load i64, ptr [[TMP5]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP10:%.*]] = load i64, ptr [[TMP6]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP11:%.*]] = load i64, ptr [[TMP7]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP12:%.*]] = icmp eq i64 [[TMP8]], 3
; CHECK-VF1IC4-NEXT:    [[TMP13:%.*]] = icmp eq i64 [[TMP9]], 3
; CHECK-VF1IC4-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[TMP10]], 3
; CHECK-VF1IC4-NEXT:    [[TMP15:%.*]] = icmp eq i64 [[TMP11]], 3
; CHECK-VF1IC4-NEXT:    [[TMP16]] = select i1 [[TMP12]], i64 [[INDEX]], i64 [[VEC_PHI]]
; CHECK-VF1IC4-NEXT:    [[TMP17]] = select i1 [[TMP13]], i64 [[TMP1]], i64 [[VEC_PHI1]]
; CHECK-VF1IC4-NEXT:    [[TMP18]] = select i1 [[TMP14]], i64 [[TMP2]], i64 [[VEC_PHI2]]
; CHECK-VF1IC4-NEXT:    [[TMP19]] = select i1 [[TMP15]], i64 [[TMP3]], i64 [[VEC_PHI3]]
; CHECK-VF1IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF1IC4-NEXT:    [[TMP20:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[TMP20]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK-VF1IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX:%.*]] = call i64 @llvm.smax.i64(i64 [[TMP16]], i64 [[TMP17]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX4:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX]], i64 [[TMP18]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX5:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX4]], i64 [[TMP19]])
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[RDX_MINMAX5]], -9223372036854775808
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[RDX_MINMAX5]], i64 3
; CHECK-VF1IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF1IC4:       [[SCALAR_PH]]:
; CHECK-VF1IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ 3, %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF1IC4:       [[FOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-VF1IC4-NEXT:    [[TMP21:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF1IC4-NEXT:    [[CMP2:%.*]] = icmp eq i64 [[TMP21]], 3
; CHECK-VF1IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF1IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF1IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF1IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
; CHECK-VF1IC4:       [[EXIT]]:
; CHECK-VF1IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF1IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
entry:
  br label %for.body

for.body:
  %iv = phi i64 [ %inc, %for.body ], [ 0, %entry ]
  %rdx = phi i64 [ %cond, %for.body ], [ 3, %entry ]
  %arrayidx = getelementptr inbounds i64, ptr %a, i64 %iv
  %0 = load i64, ptr %arrayidx, align 8
  %cmp2 = icmp eq i64 %0, 3
  %cond = select i1 %cmp2, i64 %iv, i64 %rdx
  %inc = add nuw nsw i64 %iv, 1
  %exitcond.not = icmp eq i64 %inc, %n
  br i1 %exitcond.not, label %exit, label %for.body

exit:
  ret i64 %cond
}

define i64 @select_icmp_const_2(ptr %a, i64 %n) {
; CHECK-VF4IC1-LABEL: define i64 @select_icmp_const_2(
; CHECK-VF4IC1-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC1-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC1-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC1:       [[VECTOR_PH]]:
; CHECK-VF4IC1-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC1-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC1:       [[VECTOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP4:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP1]], align 8
; CHECK-VF4IC1-NEXT:    [[TMP3:%.*]] = icmp eq <4 x i64> [[WIDE_LOAD]], splat (i64 3)
; CHECK-VF4IC1-NEXT:    [[TMP4]] = select <4 x i1> [[TMP3]], <4 x i64> [[VEC_PHI]], <4 x i64> [[VEC_IND]]
; CHECK-VF4IC1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF4IC1-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC1-NEXT:    [[TMP5:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[TMP5]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; CHECK-VF4IC1:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC1-NEXT:    [[TMP6:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[TMP4]])
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP6]], -9223372036854775808
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP6]], i64 3
; CHECK-VF4IC1-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC1:       [[SCALAR_PH]]:
; CHECK-VF4IC1-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ 3, %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC1:       [[FOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC1-NEXT:    [[TMP7:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF4IC1-NEXT:    [[CMP2:%.*]] = icmp eq i64 [[TMP7]], 3
; CHECK-VF4IC1-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[RDX]], i64 [[IV]]
; CHECK-VF4IC1-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF4IC1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC1-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
; CHECK-VF4IC1:       [[EXIT]]:
; CHECK-VF4IC1-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC1-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF4IC4-LABEL: define i64 @select_icmp_const_2(
; CHECK-VF4IC4-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC4:       [[VECTOR_PH]]:
; CHECK-VF4IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC4:       [[VECTOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP10:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI1:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP11:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI2:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP12:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI3:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP13:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[STEP_ADD:%.*]] = add nuw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_2:%.*]] = add nuw <4 x i64> [[STEP_ADD]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_3:%.*]] = add nuw <4 x i64> [[STEP_ADD_2]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC4-NEXT:    [[TMP3:%.*]] = getelementptr inbounds i64, ptr [[TMP1]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[TMP1]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[TMP1]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP1]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD4:%.*]] = load <4 x i64>, ptr [[TMP3]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD5:%.*]] = load <4 x i64>, ptr [[TMP4]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD6:%.*]] = load <4 x i64>, ptr [[TMP5]], align 8
; CHECK-VF4IC4-NEXT:    [[TMP6:%.*]] = icmp eq <4 x i64> [[WIDE_LOAD]], splat (i64 3)
; CHECK-VF4IC4-NEXT:    [[TMP7:%.*]] = icmp eq <4 x i64> [[WIDE_LOAD4]], splat (i64 3)
; CHECK-VF4IC4-NEXT:    [[TMP8:%.*]] = icmp eq <4 x i64> [[WIDE_LOAD5]], splat (i64 3)
; CHECK-VF4IC4-NEXT:    [[TMP9:%.*]] = icmp eq <4 x i64> [[WIDE_LOAD6]], splat (i64 3)
; CHECK-VF4IC4-NEXT:    [[TMP10]] = select <4 x i1> [[TMP6]], <4 x i64> [[VEC_PHI]], <4 x i64> [[VEC_IND]]
; CHECK-VF4IC4-NEXT:    [[TMP11]] = select <4 x i1> [[TMP7]], <4 x i64> [[VEC_PHI1]], <4 x i64> [[STEP_ADD]]
; CHECK-VF4IC4-NEXT:    [[TMP12]] = select <4 x i1> [[TMP8]], <4 x i64> [[VEC_PHI2]], <4 x i64> [[STEP_ADD_2]]
; CHECK-VF4IC4-NEXT:    [[TMP13]] = select <4 x i1> [[TMP9]], <4 x i64> [[VEC_PHI3]], <4 x i64> [[STEP_ADD_3]]
; CHECK-VF4IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; CHECK-VF4IC4-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[STEP_ADD_3]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[TMP14]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; CHECK-VF4IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[TMP10]], <4 x i64> [[TMP11]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX7:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX]], <4 x i64> [[TMP12]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX8:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX7]], <4 x i64> [[TMP13]])
; CHECK-VF4IC4-NEXT:    [[TMP15:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[RDX_MINMAX8]])
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP15]], -9223372036854775808
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP15]], i64 3
; CHECK-VF4IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC4:       [[SCALAR_PH]]:
; CHECK-VF4IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ 3, %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC4:       [[FOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC4-NEXT:    [[TMP16:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF4IC4-NEXT:    [[CMP2:%.*]] = icmp eq i64 [[TMP16]], 3
; CHECK-VF4IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[RDX]], i64 [[IV]]
; CHECK-VF4IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF4IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
; CHECK-VF4IC4:       [[EXIT]]:
; CHECK-VF4IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF1IC4-LABEL: define i64 @select_icmp_const_2(
; CHECK-VF1IC4-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) {
; CHECK-VF1IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF1IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF1IC4:       [[VECTOR_PH]]:
; CHECK-VF1IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF1IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF1IC4:       [[VECTOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP16:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI1:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP17:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI2:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP18:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI3:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP19:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 1
; CHECK-VF1IC4-NEXT:    [[TMP2:%.*]] = add i64 [[INDEX]], 2
; CHECK-VF1IC4-NEXT:    [[TMP3:%.*]] = add i64 [[INDEX]], 3
; CHECK-VF1IC4-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
; CHECK-VF1IC4-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP1]]
; CHECK-VF1IC4-NEXT:    [[TMP6:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP2]]
; CHECK-VF1IC4-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP3]]
; CHECK-VF1IC4-NEXT:    [[TMP8:%.*]] = load i64, ptr [[TMP4]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP9:%.*]] = load i64, ptr [[TMP5]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP10:%.*]] = load i64, ptr [[TMP6]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP11:%.*]] = load i64, ptr [[TMP7]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP12:%.*]] = icmp eq i64 [[TMP8]], 3
; CHECK-VF1IC4-NEXT:    [[TMP13:%.*]] = icmp eq i64 [[TMP9]], 3
; CHECK-VF1IC4-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[TMP10]], 3
; CHECK-VF1IC4-NEXT:    [[TMP15:%.*]] = icmp eq i64 [[TMP11]], 3
; CHECK-VF1IC4-NEXT:    [[TMP16]] = select i1 [[TMP12]], i64 [[VEC_PHI]], i64 [[INDEX]]
; CHECK-VF1IC4-NEXT:    [[TMP17]] = select i1 [[TMP13]], i64 [[VEC_PHI1]], i64 [[TMP1]]
; CHECK-VF1IC4-NEXT:    [[TMP18]] = select i1 [[TMP14]], i64 [[VEC_PHI2]], i64 [[TMP2]]
; CHECK-VF1IC4-NEXT:    [[TMP19]] = select i1 [[TMP15]], i64 [[VEC_PHI3]], i64 [[TMP3]]
; CHECK-VF1IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF1IC4-NEXT:    [[TMP20:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[TMP20]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; CHECK-VF1IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX:%.*]] = call i64 @llvm.smax.i64(i64 [[TMP16]], i64 [[TMP17]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX4:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX]], i64 [[TMP18]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX5:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX4]], i64 [[TMP19]])
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[RDX_MINMAX5]], -9223372036854775808
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[RDX_MINMAX5]], i64 3
; CHECK-VF1IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF1IC4:       [[SCALAR_PH]]:
; CHECK-VF1IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ 3, %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF1IC4:       [[FOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-VF1IC4-NEXT:    [[TMP21:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF1IC4-NEXT:    [[CMP2:%.*]] = icmp eq i64 [[TMP21]], 3
; CHECK-VF1IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[RDX]], i64 [[IV]]
; CHECK-VF1IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF1IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF1IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
; CHECK-VF1IC4:       [[EXIT]]:
; CHECK-VF1IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF1IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
entry:
  br label %for.body

for.body:
  %iv = phi i64 [ %inc, %for.body ], [ 0, %entry ]
  %rdx = phi i64 [ %cond, %for.body ], [ 3, %entry ]
  %arrayidx = getelementptr inbounds i64, ptr %a, i64 %iv
  %0 = load i64, ptr %arrayidx, align 8
  %cmp2 = icmp eq i64 %0, 3
  %cond = select i1 %cmp2, i64 %rdx, i64 %iv
  %inc = add nuw nsw i64 %iv, 1
  %exitcond.not = icmp eq i64 %inc, %n
  br i1 %exitcond.not, label %exit, label %for.body

exit:
  ret i64 %cond
}

define i64 @select_icmp_const_3_variable_rdx_start(ptr %a, i64 %rdx.start, i64 %n) {
; CHECK-VF4IC1-LABEL: define i64 @select_icmp_const_3_variable_rdx_start(
; CHECK-VF4IC1-SAME: ptr [[A:%.*]], i64 [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC1-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC1-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC1:       [[VECTOR_PH]]:
; CHECK-VF4IC1-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC1-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC1:       [[VECTOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP4:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP1]], align 8
; CHECK-VF4IC1-NEXT:    [[TMP3:%.*]] = icmp eq <4 x i64> [[WIDE_LOAD]], splat (i64 3)
; CHECK-VF4IC1-NEXT:    [[TMP4]] = select <4 x i1> [[TMP3]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF4IC1-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC1-NEXT:    [[TMP5:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[TMP5]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
; CHECK-VF4IC1:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC1-NEXT:    [[TMP6:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[TMP4]])
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP6]], -9223372036854775808
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP6]], i64 [[RDX_START]]
; CHECK-VF4IC1-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC1:       [[SCALAR_PH]]:
; CHECK-VF4IC1-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC1:       [[FOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC1-NEXT:    [[TMP7:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF4IC1-NEXT:    [[CMP2:%.*]] = icmp eq i64 [[TMP7]], 3
; CHECK-VF4IC1-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF4IC1-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF4IC1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC1-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
; CHECK-VF4IC1:       [[EXIT]]:
; CHECK-VF4IC1-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC1-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF4IC4-LABEL: define i64 @select_icmp_const_3_variable_rdx_start(
; CHECK-VF4IC4-SAME: ptr [[A:%.*]], i64 [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC4:       [[VECTOR_PH]]:
; CHECK-VF4IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC4:       [[VECTOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP10:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI1:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP11:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI2:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP12:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI3:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP13:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[STEP_ADD:%.*]] = add nuw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_2:%.*]] = add nuw <4 x i64> [[STEP_ADD]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_3:%.*]] = add nuw <4 x i64> [[STEP_ADD_2]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC4-NEXT:    [[TMP3:%.*]] = getelementptr inbounds i64, ptr [[TMP1]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[TMP1]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[TMP1]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP1]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD4:%.*]] = load <4 x i64>, ptr [[TMP3]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD5:%.*]] = load <4 x i64>, ptr [[TMP4]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD6:%.*]] = load <4 x i64>, ptr [[TMP5]], align 8
; CHECK-VF4IC4-NEXT:    [[TMP6:%.*]] = icmp eq <4 x i64> [[WIDE_LOAD]], splat (i64 3)
; CHECK-VF4IC4-NEXT:    [[TMP7:%.*]] = icmp eq <4 x i64> [[WIDE_LOAD4]], splat (i64 3)
; CHECK-VF4IC4-NEXT:    [[TMP8:%.*]] = icmp eq <4 x i64> [[WIDE_LOAD5]], splat (i64 3)
; CHECK-VF4IC4-NEXT:    [[TMP9:%.*]] = icmp eq <4 x i64> [[WIDE_LOAD6]], splat (i64 3)
; CHECK-VF4IC4-NEXT:    [[TMP10]] = select <4 x i1> [[TMP6]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC4-NEXT:    [[TMP11]] = select <4 x i1> [[TMP7]], <4 x i64> [[STEP_ADD]], <4 x i64> [[VEC_PHI1]]
; CHECK-VF4IC4-NEXT:    [[TMP12]] = select <4 x i1> [[TMP8]], <4 x i64> [[STEP_ADD_2]], <4 x i64> [[VEC_PHI2]]
; CHECK-VF4IC4-NEXT:    [[TMP13]] = select <4 x i1> [[TMP9]], <4 x i64> [[STEP_ADD_3]], <4 x i64> [[VEC_PHI3]]
; CHECK-VF4IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; CHECK-VF4IC4-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[STEP_ADD_3]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[TMP14]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
; CHECK-VF4IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[TMP10]], <4 x i64> [[TMP11]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX7:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX]], <4 x i64> [[TMP12]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX8:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX7]], <4 x i64> [[TMP13]])
; CHECK-VF4IC4-NEXT:    [[TMP15:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[RDX_MINMAX8]])
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP15]], -9223372036854775808
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP15]], i64 [[RDX_START]]
; CHECK-VF4IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC4:       [[SCALAR_PH]]:
; CHECK-VF4IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC4:       [[FOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC4-NEXT:    [[TMP16:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF4IC4-NEXT:    [[CMP2:%.*]] = icmp eq i64 [[TMP16]], 3
; CHECK-VF4IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF4IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF4IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
; CHECK-VF4IC4:       [[EXIT]]:
; CHECK-VF4IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF1IC4-LABEL: define i64 @select_icmp_const_3_variable_rdx_start(
; CHECK-VF1IC4-SAME: ptr [[A:%.*]], i64 [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF1IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF1IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF1IC4:       [[VECTOR_PH]]:
; CHECK-VF1IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF1IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF1IC4:       [[VECTOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP16:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI1:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP17:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI2:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP18:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI3:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP19:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 1
; CHECK-VF1IC4-NEXT:    [[TMP2:%.*]] = add i64 [[INDEX]], 2
; CHECK-VF1IC4-NEXT:    [[TMP3:%.*]] = add i64 [[INDEX]], 3
; CHECK-VF1IC4-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
; CHECK-VF1IC4-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP1]]
; CHECK-VF1IC4-NEXT:    [[TMP6:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP2]]
; CHECK-VF1IC4-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP3]]
; CHECK-VF1IC4-NEXT:    [[TMP8:%.*]] = load i64, ptr [[TMP4]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP9:%.*]] = load i64, ptr [[TMP5]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP10:%.*]] = load i64, ptr [[TMP6]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP11:%.*]] = load i64, ptr [[TMP7]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP12:%.*]] = icmp eq i64 [[TMP8]], 3
; CHECK-VF1IC4-NEXT:    [[TMP13:%.*]] = icmp eq i64 [[TMP9]], 3
; CHECK-VF1IC4-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[TMP10]], 3
; CHECK-VF1IC4-NEXT:    [[TMP15:%.*]] = icmp eq i64 [[TMP11]], 3
; CHECK-VF1IC4-NEXT:    [[TMP16]] = select i1 [[TMP12]], i64 [[INDEX]], i64 [[VEC_PHI]]
; CHECK-VF1IC4-NEXT:    [[TMP17]] = select i1 [[TMP13]], i64 [[TMP1]], i64 [[VEC_PHI1]]
; CHECK-VF1IC4-NEXT:    [[TMP18]] = select i1 [[TMP14]], i64 [[TMP2]], i64 [[VEC_PHI2]]
; CHECK-VF1IC4-NEXT:    [[TMP19]] = select i1 [[TMP15]], i64 [[TMP3]], i64 [[VEC_PHI3]]
; CHECK-VF1IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF1IC4-NEXT:    [[TMP20:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[TMP20]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
; CHECK-VF1IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX:%.*]] = call i64 @llvm.smax.i64(i64 [[TMP16]], i64 [[TMP17]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX4:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX]], i64 [[TMP18]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX5:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX4]], i64 [[TMP19]])
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[RDX_MINMAX5]], -9223372036854775808
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[RDX_MINMAX5]], i64 [[RDX_START]]
; CHECK-VF1IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF1IC4:       [[SCALAR_PH]]:
; CHECK-VF1IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF1IC4:       [[FOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-VF1IC4-NEXT:    [[TMP21:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF1IC4-NEXT:    [[CMP2:%.*]] = icmp eq i64 [[TMP21]], 3
; CHECK-VF1IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF1IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF1IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF1IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
; CHECK-VF1IC4:       [[EXIT]]:
; CHECK-VF1IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF1IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
entry:
  br label %for.body

for.body:
  %iv = phi i64 [ %inc, %for.body ], [ 0, %entry ]
  %rdx = phi i64 [ %cond, %for.body ], [ %rdx.start, %entry ]
  %arrayidx = getelementptr inbounds i64, ptr %a, i64 %iv
  %0 = load i64, ptr %arrayidx, align 8
  %cmp2 = icmp eq i64 %0, 3
  %cond = select i1 %cmp2, i64 %iv, i64 %rdx
  %inc = add nuw nsw i64 %iv, 1
  %exitcond.not = icmp eq i64 %inc, %n
  br i1 %exitcond.not, label %exit, label %for.body

exit:
  ret i64 %cond
}

define i64 @select_fcmp_const_fast(ptr %a, i64 %n) {
; CHECK-VF4IC1-LABEL: define i64 @select_fcmp_const_fast(
; CHECK-VF4IC1-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC1-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC1-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC1:       [[VECTOR_PH]]:
; CHECK-VF4IC1-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC1-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC1:       [[VECTOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP4:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[TMP1:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x float>, ptr [[TMP1]], align 4
; CHECK-VF4IC1-NEXT:    [[TMP3:%.*]] = fcmp fast ueq <4 x float> [[WIDE_LOAD]], splat (float 3.000000e+00)
; CHECK-VF4IC1-NEXT:    [[TMP4]] = select <4 x i1> [[TMP3]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF4IC1-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC1-NEXT:    [[TMP5:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[TMP5]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
; CHECK-VF4IC1:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC1-NEXT:    [[TMP6:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[TMP4]])
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP6]], -9223372036854775808
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP6]], i64 2
; CHECK-VF4IC1-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC1:       [[SCALAR_PH]]:
; CHECK-VF4IC1-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ 2, %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC1:       [[FOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC1-NEXT:    [[TMP7:%.*]] = load float, ptr [[ARRAYIDX]], align 4
; CHECK-VF4IC1-NEXT:    [[CMP2:%.*]] = fcmp fast ueq float [[TMP7]], 3.000000e+00
; CHECK-VF4IC1-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF4IC1-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF4IC1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC1-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]]
; CHECK-VF4IC1:       [[EXIT]]:
; CHECK-VF4IC1-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC1-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF4IC4-LABEL: define i64 @select_fcmp_const_fast(
; CHECK-VF4IC4-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC4:       [[VECTOR_PH]]:
; CHECK-VF4IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC4:       [[VECTOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP10:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI1:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP11:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI2:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP12:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI3:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP13:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[STEP_ADD:%.*]] = add nuw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_2:%.*]] = add nuw <4 x i64> [[STEP_ADD]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_3:%.*]] = add nuw <4 x i64> [[STEP_ADD_2]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP1:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC4-NEXT:    [[TMP3:%.*]] = getelementptr inbounds float, ptr [[TMP1]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP4:%.*]] = getelementptr inbounds float, ptr [[TMP1]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP5:%.*]] = getelementptr inbounds float, ptr [[TMP1]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x float>, ptr [[TMP1]], align 4
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD4:%.*]] = load <4 x float>, ptr [[TMP3]], align 4
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD5:%.*]] = load <4 x float>, ptr [[TMP4]], align 4
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD6:%.*]] = load <4 x float>, ptr [[TMP5]], align 4
; CHECK-VF4IC4-NEXT:    [[TMP6:%.*]] = fcmp fast ueq <4 x float> [[WIDE_LOAD]], splat (float 3.000000e+00)
; CHECK-VF4IC4-NEXT:    [[TMP7:%.*]] = fcmp fast ueq <4 x float> [[WIDE_LOAD4]], splat (float 3.000000e+00)
; CHECK-VF4IC4-NEXT:    [[TMP8:%.*]] = fcmp fast ueq <4 x float> [[WIDE_LOAD5]], splat (float 3.000000e+00)
; CHECK-VF4IC4-NEXT:    [[TMP9:%.*]] = fcmp fast ueq <4 x float> [[WIDE_LOAD6]], splat (float 3.000000e+00)
; CHECK-VF4IC4-NEXT:    [[TMP10]] = select <4 x i1> [[TMP6]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC4-NEXT:    [[TMP11]] = select <4 x i1> [[TMP7]], <4 x i64> [[STEP_ADD]], <4 x i64> [[VEC_PHI1]]
; CHECK-VF4IC4-NEXT:    [[TMP12]] = select <4 x i1> [[TMP8]], <4 x i64> [[STEP_ADD_2]], <4 x i64> [[VEC_PHI2]]
; CHECK-VF4IC4-NEXT:    [[TMP13]] = select <4 x i1> [[TMP9]], <4 x i64> [[STEP_ADD_3]], <4 x i64> [[VEC_PHI3]]
; CHECK-VF4IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; CHECK-VF4IC4-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[STEP_ADD_3]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[TMP14]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
; CHECK-VF4IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[TMP10]], <4 x i64> [[TMP11]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX7:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX]], <4 x i64> [[TMP12]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX8:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX7]], <4 x i64> [[TMP13]])
; CHECK-VF4IC4-NEXT:    [[TMP15:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[RDX_MINMAX8]])
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP15]], -9223372036854775808
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP15]], i64 2
; CHECK-VF4IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC4:       [[SCALAR_PH]]:
; CHECK-VF4IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ 2, %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC4:       [[FOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC4-NEXT:    [[TMP16:%.*]] = load float, ptr [[ARRAYIDX]], align 4
; CHECK-VF4IC4-NEXT:    [[CMP2:%.*]] = fcmp fast ueq float [[TMP16]], 3.000000e+00
; CHECK-VF4IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF4IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF4IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]]
; CHECK-VF4IC4:       [[EXIT]]:
; CHECK-VF4IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF1IC4-LABEL: define i64 @select_fcmp_const_fast(
; CHECK-VF1IC4-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) {
; CHECK-VF1IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF1IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF1IC4:       [[VECTOR_PH]]:
; CHECK-VF1IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF1IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF1IC4:       [[VECTOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP16:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI1:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP17:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI2:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP18:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI3:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP19:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 1
; CHECK-VF1IC4-NEXT:    [[TMP2:%.*]] = add i64 [[INDEX]], 2
; CHECK-VF1IC4-NEXT:    [[TMP3:%.*]] = add i64 [[INDEX]], 3
; CHECK-VF1IC4-NEXT:    [[TMP4:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[INDEX]]
; CHECK-VF1IC4-NEXT:    [[TMP5:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[TMP1]]
; CHECK-VF1IC4-NEXT:    [[TMP6:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[TMP2]]
; CHECK-VF1IC4-NEXT:    [[TMP7:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[TMP3]]
; CHECK-VF1IC4-NEXT:    [[TMP8:%.*]] = load float, ptr [[TMP4]], align 4
; CHECK-VF1IC4-NEXT:    [[TMP9:%.*]] = load float, ptr [[TMP5]], align 4
; CHECK-VF1IC4-NEXT:    [[TMP10:%.*]] = load float, ptr [[TMP6]], align 4
; CHECK-VF1IC4-NEXT:    [[TMP11:%.*]] = load float, ptr [[TMP7]], align 4
; CHECK-VF1IC4-NEXT:    [[TMP12:%.*]] = fcmp fast ueq float [[TMP8]], 3.000000e+00
; CHECK-VF1IC4-NEXT:    [[TMP13:%.*]] = fcmp fast ueq float [[TMP9]], 3.000000e+00
; CHECK-VF1IC4-NEXT:    [[TMP14:%.*]] = fcmp fast ueq float [[TMP10]], 3.000000e+00
; CHECK-VF1IC4-NEXT:    [[TMP15:%.*]] = fcmp fast ueq float [[TMP11]], 3.000000e+00
; CHECK-VF1IC4-NEXT:    [[TMP16]] = select i1 [[TMP12]], i64 [[INDEX]], i64 [[VEC_PHI]]
; CHECK-VF1IC4-NEXT:    [[TMP17]] = select i1 [[TMP13]], i64 [[TMP1]], i64 [[VEC_PHI1]]
; CHECK-VF1IC4-NEXT:    [[TMP18]] = select i1 [[TMP14]], i64 [[TMP2]], i64 [[VEC_PHI2]]
; CHECK-VF1IC4-NEXT:    [[TMP19]] = select i1 [[TMP15]], i64 [[TMP3]], i64 [[VEC_PHI3]]
; CHECK-VF1IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF1IC4-NEXT:    [[TMP20:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[TMP20]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
; CHECK-VF1IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX:%.*]] = call i64 @llvm.smax.i64(i64 [[TMP16]], i64 [[TMP17]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX4:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX]], i64 [[TMP18]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX5:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX4]], i64 [[TMP19]])
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[RDX_MINMAX5]], -9223372036854775808
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[RDX_MINMAX5]], i64 2
; CHECK-VF1IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF1IC4:       [[SCALAR_PH]]:
; CHECK-VF1IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ 2, %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF1IC4:       [[FOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[IV]]
; CHECK-VF1IC4-NEXT:    [[TMP21:%.*]] = load float, ptr [[ARRAYIDX]], align 4
; CHECK-VF1IC4-NEXT:    [[CMP2:%.*]] = fcmp fast ueq float [[TMP21]], 3.000000e+00
; CHECK-VF1IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF1IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF1IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF1IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]]
; CHECK-VF1IC4:       [[EXIT]]:
; CHECK-VF1IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF1IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
entry:
  br label %for.body

for.body:
  %iv = phi i64 [ %inc, %for.body ], [ 0, %entry ]
  %rdx = phi i64 [ %cond, %for.body ], [ 2, %entry ]
  %arrayidx = getelementptr inbounds float, ptr %a, i64 %iv
  %0 = load float, ptr %arrayidx, align 4
  %cmp2 = fcmp fast ueq float %0, 3.0
  %cond = select i1 %cmp2, i64 %iv, i64 %rdx
  %inc = add nuw nsw i64 %iv, 1
  %exitcond.not = icmp eq i64 %inc, %n
  br i1 %exitcond.not, label %exit, label %for.body

exit:
  ret i64 %cond
}

define i64 @select_fcmp_const(ptr %a, i64 %n) {
; CHECK-VF4IC1-LABEL: define i64 @select_fcmp_const(
; CHECK-VF4IC1-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC1-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC1-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC1:       [[VECTOR_PH]]:
; CHECK-VF4IC1-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC1-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC1:       [[VECTOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP4:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[TMP1:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x float>, ptr [[TMP1]], align 4
; CHECK-VF4IC1-NEXT:    [[TMP3:%.*]] = fcmp ueq <4 x float> [[WIDE_LOAD]], splat (float 3.000000e+00)
; CHECK-VF4IC1-NEXT:    [[TMP4]] = select <4 x i1> [[TMP3]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF4IC1-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC1-NEXT:    [[TMP5:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[TMP5]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
; CHECK-VF4IC1:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC1-NEXT:    [[TMP6:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[TMP4]])
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP6]], -9223372036854775808
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP6]], i64 2
; CHECK-VF4IC1-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC1:       [[SCALAR_PH]]:
; CHECK-VF4IC1-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ 2, %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC1:       [[FOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC1-NEXT:    [[TMP7:%.*]] = load float, ptr [[ARRAYIDX]], align 4
; CHECK-VF4IC1-NEXT:    [[CMP2:%.*]] = fcmp ueq float [[TMP7]], 3.000000e+00
; CHECK-VF4IC1-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF4IC1-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF4IC1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC1-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP11:![0-9]+]]
; CHECK-VF4IC1:       [[EXIT]]:
; CHECK-VF4IC1-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC1-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF4IC4-LABEL: define i64 @select_fcmp_const(
; CHECK-VF4IC4-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC4:       [[VECTOR_PH]]:
; CHECK-VF4IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC4:       [[VECTOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP10:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI1:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP11:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI2:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP12:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI3:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP13:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[STEP_ADD:%.*]] = add nuw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_2:%.*]] = add nuw <4 x i64> [[STEP_ADD]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_3:%.*]] = add nuw <4 x i64> [[STEP_ADD_2]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP1:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC4-NEXT:    [[TMP3:%.*]] = getelementptr inbounds float, ptr [[TMP1]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP4:%.*]] = getelementptr inbounds float, ptr [[TMP1]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP5:%.*]] = getelementptr inbounds float, ptr [[TMP1]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x float>, ptr [[TMP1]], align 4
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD4:%.*]] = load <4 x float>, ptr [[TMP3]], align 4
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD5:%.*]] = load <4 x float>, ptr [[TMP4]], align 4
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD6:%.*]] = load <4 x float>, ptr [[TMP5]], align 4
; CHECK-VF4IC4-NEXT:    [[TMP6:%.*]] = fcmp ueq <4 x float> [[WIDE_LOAD]], splat (float 3.000000e+00)
; CHECK-VF4IC4-NEXT:    [[TMP7:%.*]] = fcmp ueq <4 x float> [[WIDE_LOAD4]], splat (float 3.000000e+00)
; CHECK-VF4IC4-NEXT:    [[TMP8:%.*]] = fcmp ueq <4 x float> [[WIDE_LOAD5]], splat (float 3.000000e+00)
; CHECK-VF4IC4-NEXT:    [[TMP9:%.*]] = fcmp ueq <4 x float> [[WIDE_LOAD6]], splat (float 3.000000e+00)
; CHECK-VF4IC4-NEXT:    [[TMP10]] = select <4 x i1> [[TMP6]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC4-NEXT:    [[TMP11]] = select <4 x i1> [[TMP7]], <4 x i64> [[STEP_ADD]], <4 x i64> [[VEC_PHI1]]
; CHECK-VF4IC4-NEXT:    [[TMP12]] = select <4 x i1> [[TMP8]], <4 x i64> [[STEP_ADD_2]], <4 x i64> [[VEC_PHI2]]
; CHECK-VF4IC4-NEXT:    [[TMP13]] = select <4 x i1> [[TMP9]], <4 x i64> [[STEP_ADD_3]], <4 x i64> [[VEC_PHI3]]
; CHECK-VF4IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; CHECK-VF4IC4-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[STEP_ADD_3]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[TMP14]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
; CHECK-VF4IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[TMP10]], <4 x i64> [[TMP11]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX7:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX]], <4 x i64> [[TMP12]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX8:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX7]], <4 x i64> [[TMP13]])
; CHECK-VF4IC4-NEXT:    [[TMP15:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[RDX_MINMAX8]])
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP15]], -9223372036854775808
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP15]], i64 2
; CHECK-VF4IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC4:       [[SCALAR_PH]]:
; CHECK-VF4IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ 2, %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC4:       [[FOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC4-NEXT:    [[TMP16:%.*]] = load float, ptr [[ARRAYIDX]], align 4
; CHECK-VF4IC4-NEXT:    [[CMP2:%.*]] = fcmp ueq float [[TMP16]], 3.000000e+00
; CHECK-VF4IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF4IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF4IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP11:![0-9]+]]
; CHECK-VF4IC4:       [[EXIT]]:
; CHECK-VF4IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF1IC4-LABEL: define i64 @select_fcmp_const(
; CHECK-VF1IC4-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) {
; CHECK-VF1IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF1IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF1IC4:       [[VECTOR_PH]]:
; CHECK-VF1IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF1IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF1IC4:       [[VECTOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP16:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI1:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP17:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI2:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP18:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI3:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP19:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 1
; CHECK-VF1IC4-NEXT:    [[TMP2:%.*]] = add i64 [[INDEX]], 2
; CHECK-VF1IC4-NEXT:    [[TMP3:%.*]] = add i64 [[INDEX]], 3
; CHECK-VF1IC4-NEXT:    [[TMP4:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[INDEX]]
; CHECK-VF1IC4-NEXT:    [[TMP5:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[TMP1]]
; CHECK-VF1IC4-NEXT:    [[TMP6:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[TMP2]]
; CHECK-VF1IC4-NEXT:    [[TMP7:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[TMP3]]
; CHECK-VF1IC4-NEXT:    [[TMP8:%.*]] = load float, ptr [[TMP4]], align 4
; CHECK-VF1IC4-NEXT:    [[TMP9:%.*]] = load float, ptr [[TMP5]], align 4
; CHECK-VF1IC4-NEXT:    [[TMP10:%.*]] = load float, ptr [[TMP6]], align 4
; CHECK-VF1IC4-NEXT:    [[TMP11:%.*]] = load float, ptr [[TMP7]], align 4
; CHECK-VF1IC4-NEXT:    [[TMP12:%.*]] = fcmp ueq float [[TMP8]], 3.000000e+00
; CHECK-VF1IC4-NEXT:    [[TMP13:%.*]] = fcmp ueq float [[TMP9]], 3.000000e+00
; CHECK-VF1IC4-NEXT:    [[TMP14:%.*]] = fcmp ueq float [[TMP10]], 3.000000e+00
; CHECK-VF1IC4-NEXT:    [[TMP15:%.*]] = fcmp ueq float [[TMP11]], 3.000000e+00
; CHECK-VF1IC4-NEXT:    [[TMP16]] = select i1 [[TMP12]], i64 [[INDEX]], i64 [[VEC_PHI]]
; CHECK-VF1IC4-NEXT:    [[TMP17]] = select i1 [[TMP13]], i64 [[TMP1]], i64 [[VEC_PHI1]]
; CHECK-VF1IC4-NEXT:    [[TMP18]] = select i1 [[TMP14]], i64 [[TMP2]], i64 [[VEC_PHI2]]
; CHECK-VF1IC4-NEXT:    [[TMP19]] = select i1 [[TMP15]], i64 [[TMP3]], i64 [[VEC_PHI3]]
; CHECK-VF1IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF1IC4-NEXT:    [[TMP20:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[TMP20]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
; CHECK-VF1IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX:%.*]] = call i64 @llvm.smax.i64(i64 [[TMP16]], i64 [[TMP17]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX4:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX]], i64 [[TMP18]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX5:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX4]], i64 [[TMP19]])
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[RDX_MINMAX5]], -9223372036854775808
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[RDX_MINMAX5]], i64 2
; CHECK-VF1IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF1IC4:       [[SCALAR_PH]]:
; CHECK-VF1IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ 2, %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF1IC4:       [[FOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[IV]]
; CHECK-VF1IC4-NEXT:    [[TMP21:%.*]] = load float, ptr [[ARRAYIDX]], align 4
; CHECK-VF1IC4-NEXT:    [[CMP2:%.*]] = fcmp ueq float [[TMP21]], 3.000000e+00
; CHECK-VF1IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF1IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF1IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF1IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP11:![0-9]+]]
; CHECK-VF1IC4:       [[EXIT]]:
; CHECK-VF1IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF1IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
entry:
  br label %for.body

for.body:
  %iv = phi i64 [ %inc, %for.body ], [ 0, %entry ]
  %rdx = phi i64 [ %cond, %for.body ], [ 2, %entry ]
  %arrayidx = getelementptr inbounds float, ptr %a, i64 %iv
  %0 = load float, ptr %arrayidx, align 4
  %cmp2 = fcmp ueq float %0, 3.0
  %cond = select i1 %cmp2, i64 %iv, i64 %rdx
  %inc = add nuw nsw i64 %iv, 1
  %exitcond.not = icmp eq i64 %inc, %n
  br i1 %exitcond.not, label %exit, label %for.body

exit:
  ret i64 %cond
}

define i64 @select_icmp(ptr %a, ptr %b, i64 %rdx.start, i64 %n) {
; CHECK-VF4IC1-LABEL: define i64 @select_icmp(
; CHECK-VF4IC1-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC1-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC1-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC1:       [[VECTOR_PH]]:
; CHECK-VF4IC1-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC1-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC1:       [[VECTOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP6:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP1]], align 8
; CHECK-VF4IC1-NEXT:    [[TMP3:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[INDEX]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD1:%.*]] = load <4 x i64>, ptr [[TMP3]], align 8
; CHECK-VF4IC1-NEXT:    [[TMP5:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD]], [[WIDE_LOAD1]]
; CHECK-VF4IC1-NEXT:    [[TMP6]] = select <4 x i1> [[TMP5]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF4IC1-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC1-NEXT:    [[TMP7:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[TMP7]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
; CHECK-VF4IC1:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC1-NEXT:    [[TMP8:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[TMP6]])
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP8]], -9223372036854775808
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP8]], i64 [[RDX_START]]
; CHECK-VF4IC1-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC1:       [[SCALAR_PH]]:
; CHECK-VF4IC1-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC1:       [[FOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC1-NEXT:    [[TMP9:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV]]
; CHECK-VF4IC1-NEXT:    [[TMP10:%.*]] = load i64, ptr [[ARRAYIDX1]], align 8
; CHECK-VF4IC1-NEXT:    [[CMP2:%.*]] = icmp sgt i64 [[TMP9]], [[TMP10]]
; CHECK-VF4IC1-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF4IC1-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF4IC1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC1-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP13:![0-9]+]]
; CHECK-VF4IC1:       [[EXIT]]:
; CHECK-VF4IC1-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC1-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF4IC4-LABEL: define i64 @select_icmp(
; CHECK-VF4IC4-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC4:       [[VECTOR_PH]]:
; CHECK-VF4IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC4:       [[VECTOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP15:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI1:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP16:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI2:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP17:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI3:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP18:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[STEP_ADD:%.*]] = add nuw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_2:%.*]] = add nuw <4 x i64> [[STEP_ADD]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_3:%.*]] = add nuw <4 x i64> [[STEP_ADD_2]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC4-NEXT:    [[TMP3:%.*]] = getelementptr inbounds i64, ptr [[TMP1]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[TMP1]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[TMP1]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP1]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD4:%.*]] = load <4 x i64>, ptr [[TMP3]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD5:%.*]] = load <4 x i64>, ptr [[TMP4]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD6:%.*]] = load <4 x i64>, ptr [[TMP5]], align 8
; CHECK-VF4IC4-NEXT:    [[TMP6:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[INDEX]]
; CHECK-VF4IC4-NEXT:    [[TMP8:%.*]] = getelementptr inbounds i64, ptr [[TMP6]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP9:%.*]] = getelementptr inbounds i64, ptr [[TMP6]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP10:%.*]] = getelementptr inbounds i64, ptr [[TMP6]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD7:%.*]] = load <4 x i64>, ptr [[TMP6]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD8:%.*]] = load <4 x i64>, ptr [[TMP8]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD9:%.*]] = load <4 x i64>, ptr [[TMP9]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD10:%.*]] = load <4 x i64>, ptr [[TMP10]], align 8
; CHECK-VF4IC4-NEXT:    [[TMP11:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD]], [[WIDE_LOAD7]]
; CHECK-VF4IC4-NEXT:    [[TMP12:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD4]], [[WIDE_LOAD8]]
; CHECK-VF4IC4-NEXT:    [[TMP13:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD5]], [[WIDE_LOAD9]]
; CHECK-VF4IC4-NEXT:    [[TMP14:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD6]], [[WIDE_LOAD10]]
; CHECK-VF4IC4-NEXT:    [[TMP15]] = select <4 x i1> [[TMP11]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC4-NEXT:    [[TMP16]] = select <4 x i1> [[TMP12]], <4 x i64> [[STEP_ADD]], <4 x i64> [[VEC_PHI1]]
; CHECK-VF4IC4-NEXT:    [[TMP17]] = select <4 x i1> [[TMP13]], <4 x i64> [[STEP_ADD_2]], <4 x i64> [[VEC_PHI2]]
; CHECK-VF4IC4-NEXT:    [[TMP18]] = select <4 x i1> [[TMP14]], <4 x i64> [[STEP_ADD_3]], <4 x i64> [[VEC_PHI3]]
; CHECK-VF4IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; CHECK-VF4IC4-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[STEP_ADD_3]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP19:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[TMP19]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
; CHECK-VF4IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[TMP15]], <4 x i64> [[TMP16]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX11:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX]], <4 x i64> [[TMP17]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX12:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX11]], <4 x i64> [[TMP18]])
; CHECK-VF4IC4-NEXT:    [[TMP20:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[RDX_MINMAX12]])
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP20]], -9223372036854775808
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP20]], i64 [[RDX_START]]
; CHECK-VF4IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC4:       [[SCALAR_PH]]:
; CHECK-VF4IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC4:       [[FOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC4-NEXT:    [[TMP21:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV]]
; CHECK-VF4IC4-NEXT:    [[TMP22:%.*]] = load i64, ptr [[ARRAYIDX1]], align 8
; CHECK-VF4IC4-NEXT:    [[CMP2:%.*]] = icmp sgt i64 [[TMP21]], [[TMP22]]
; CHECK-VF4IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF4IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF4IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP13:![0-9]+]]
; CHECK-VF4IC4:       [[EXIT]]:
; CHECK-VF4IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF1IC4-LABEL: define i64 @select_icmp(
; CHECK-VF1IC4-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF1IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF1IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF1IC4:       [[VECTOR_PH]]:
; CHECK-VF1IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF1IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF1IC4:       [[VECTOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP24:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI1:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP25:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI2:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP26:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI3:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP27:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 1
; CHECK-VF1IC4-NEXT:    [[TMP2:%.*]] = add i64 [[INDEX]], 2
; CHECK-VF1IC4-NEXT:    [[TMP3:%.*]] = add i64 [[INDEX]], 3
; CHECK-VF1IC4-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
; CHECK-VF1IC4-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP1]]
; CHECK-VF1IC4-NEXT:    [[TMP6:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP2]]
; CHECK-VF1IC4-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP3]]
; CHECK-VF1IC4-NEXT:    [[TMP8:%.*]] = load i64, ptr [[TMP4]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP9:%.*]] = load i64, ptr [[TMP5]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP10:%.*]] = load i64, ptr [[TMP6]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP11:%.*]] = load i64, ptr [[TMP7]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP12:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[INDEX]]
; CHECK-VF1IC4-NEXT:    [[TMP13:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[TMP1]]
; CHECK-VF1IC4-NEXT:    [[TMP14:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[TMP2]]
; CHECK-VF1IC4-NEXT:    [[TMP15:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[TMP3]]
; CHECK-VF1IC4-NEXT:    [[TMP16:%.*]] = load i64, ptr [[TMP12]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP17:%.*]] = load i64, ptr [[TMP13]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP18:%.*]] = load i64, ptr [[TMP14]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP19:%.*]] = load i64, ptr [[TMP15]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP20:%.*]] = icmp sgt i64 [[TMP8]], [[TMP16]]
; CHECK-VF1IC4-NEXT:    [[TMP21:%.*]] = icmp sgt i64 [[TMP9]], [[TMP17]]
; CHECK-VF1IC4-NEXT:    [[TMP22:%.*]] = icmp sgt i64 [[TMP10]], [[TMP18]]
; CHECK-VF1IC4-NEXT:    [[TMP23:%.*]] = icmp sgt i64 [[TMP11]], [[TMP19]]
; CHECK-VF1IC4-NEXT:    [[TMP24]] = select i1 [[TMP20]], i64 [[INDEX]], i64 [[VEC_PHI]]
; CHECK-VF1IC4-NEXT:    [[TMP25]] = select i1 [[TMP21]], i64 [[TMP1]], i64 [[VEC_PHI1]]
; CHECK-VF1IC4-NEXT:    [[TMP26]] = select i1 [[TMP22]], i64 [[TMP2]], i64 [[VEC_PHI2]]
; CHECK-VF1IC4-NEXT:    [[TMP27]] = select i1 [[TMP23]], i64 [[TMP3]], i64 [[VEC_PHI3]]
; CHECK-VF1IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF1IC4-NEXT:    [[TMP28:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[TMP28]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
; CHECK-VF1IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX:%.*]] = call i64 @llvm.smax.i64(i64 [[TMP24]], i64 [[TMP25]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX4:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX]], i64 [[TMP26]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX5:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX4]], i64 [[TMP27]])
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[RDX_MINMAX5]], -9223372036854775808
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[RDX_MINMAX5]], i64 [[RDX_START]]
; CHECK-VF1IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF1IC4:       [[SCALAR_PH]]:
; CHECK-VF1IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF1IC4:       [[FOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-VF1IC4-NEXT:    [[TMP29:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV]]
; CHECK-VF1IC4-NEXT:    [[TMP30:%.*]] = load i64, ptr [[ARRAYIDX1]], align 8
; CHECK-VF1IC4-NEXT:    [[CMP2:%.*]] = icmp sgt i64 [[TMP29]], [[TMP30]]
; CHECK-VF1IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF1IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF1IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF1IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP13:![0-9]+]]
; CHECK-VF1IC4:       [[EXIT]]:
; CHECK-VF1IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF1IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
entry:
  br label %for.body

for.body:
  %iv = phi i64 [ %inc, %for.body ], [ 0, %entry ]
  %rdx = phi i64 [ %cond, %for.body ], [ %rdx.start, %entry ]
  %arrayidx = getelementptr inbounds i64, ptr %a, i64 %iv
  %0 = load i64, ptr %arrayidx, align 8
  %arrayidx1 = getelementptr inbounds i64, ptr %b, i64 %iv
  %1 = load i64, ptr %arrayidx1, align 8
  %cmp2 = icmp sgt i64 %0, %1
  %cond = select i1 %cmp2, i64 %iv, i64 %rdx
  %inc = add nuw nsw i64 %iv, 1
  %exitcond.not = icmp eq i64 %inc, %n
  br i1 %exitcond.not, label %exit, label %for.body

exit:
  ret i64 %cond
}

define i64 @select_fcmp(ptr %a, ptr %b, i64 %rdx.start, i64 %n) {
; CHECK-VF4IC1-LABEL: define i64 @select_fcmp(
; CHECK-VF4IC1-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC1-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC1-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC1:       [[VECTOR_PH]]:
; CHECK-VF4IC1-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC1-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC1:       [[VECTOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP6:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[TMP1:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x float>, ptr [[TMP1]], align 4
; CHECK-VF4IC1-NEXT:    [[TMP3:%.*]] = getelementptr inbounds float, ptr [[B]], i64 [[INDEX]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD1:%.*]] = load <4 x float>, ptr [[TMP3]], align 4
; CHECK-VF4IC1-NEXT:    [[TMP5:%.*]] = fcmp ogt <4 x float> [[WIDE_LOAD]], [[WIDE_LOAD1]]
; CHECK-VF4IC1-NEXT:    [[TMP6]] = select <4 x i1> [[TMP5]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF4IC1-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC1-NEXT:    [[TMP7:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[TMP7]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
; CHECK-VF4IC1:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC1-NEXT:    [[TMP8:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[TMP6]])
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP8]], -9223372036854775808
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP8]], i64 [[RDX_START]]
; CHECK-VF4IC1-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC1:       [[SCALAR_PH]]:
; CHECK-VF4IC1-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC1:       [[FOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC1-NEXT:    [[TMP9:%.*]] = load float, ptr [[ARRAYIDX]], align 4
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds float, ptr [[B]], i64 [[IV]]
; CHECK-VF4IC1-NEXT:    [[TMP10:%.*]] = load float, ptr [[ARRAYIDX1]], align 4
; CHECK-VF4IC1-NEXT:    [[CMP2:%.*]] = fcmp ogt float [[TMP9]], [[TMP10]]
; CHECK-VF4IC1-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF4IC1-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF4IC1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC1-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP15:![0-9]+]]
; CHECK-VF4IC1:       [[EXIT]]:
; CHECK-VF4IC1-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC1-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF4IC4-LABEL: define i64 @select_fcmp(
; CHECK-VF4IC4-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC4:       [[VECTOR_PH]]:
; CHECK-VF4IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC4:       [[VECTOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP15:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI1:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP16:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI2:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP17:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI3:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP18:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[STEP_ADD:%.*]] = add nuw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_2:%.*]] = add nuw <4 x i64> [[STEP_ADD]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_3:%.*]] = add nuw <4 x i64> [[STEP_ADD_2]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP1:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC4-NEXT:    [[TMP3:%.*]] = getelementptr inbounds float, ptr [[TMP1]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP4:%.*]] = getelementptr inbounds float, ptr [[TMP1]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP5:%.*]] = getelementptr inbounds float, ptr [[TMP1]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x float>, ptr [[TMP1]], align 4
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD4:%.*]] = load <4 x float>, ptr [[TMP3]], align 4
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD5:%.*]] = load <4 x float>, ptr [[TMP4]], align 4
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD6:%.*]] = load <4 x float>, ptr [[TMP5]], align 4
; CHECK-VF4IC4-NEXT:    [[TMP6:%.*]] = getelementptr inbounds float, ptr [[B]], i64 [[INDEX]]
; CHECK-VF4IC4-NEXT:    [[TMP8:%.*]] = getelementptr inbounds float, ptr [[TMP6]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP9:%.*]] = getelementptr inbounds float, ptr [[TMP6]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP10:%.*]] = getelementptr inbounds float, ptr [[TMP6]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD7:%.*]] = load <4 x float>, ptr [[TMP6]], align 4
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD8:%.*]] = load <4 x float>, ptr [[TMP8]], align 4
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD9:%.*]] = load <4 x float>, ptr [[TMP9]], align 4
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD10:%.*]] = load <4 x float>, ptr [[TMP10]], align 4
; CHECK-VF4IC4-NEXT:    [[TMP11:%.*]] = fcmp ogt <4 x float> [[WIDE_LOAD]], [[WIDE_LOAD7]]
; CHECK-VF4IC4-NEXT:    [[TMP12:%.*]] = fcmp ogt <4 x float> [[WIDE_LOAD4]], [[WIDE_LOAD8]]
; CHECK-VF4IC4-NEXT:    [[TMP13:%.*]] = fcmp ogt <4 x float> [[WIDE_LOAD5]], [[WIDE_LOAD9]]
; CHECK-VF4IC4-NEXT:    [[TMP14:%.*]] = fcmp ogt <4 x float> [[WIDE_LOAD6]], [[WIDE_LOAD10]]
; CHECK-VF4IC4-NEXT:    [[TMP15]] = select <4 x i1> [[TMP11]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC4-NEXT:    [[TMP16]] = select <4 x i1> [[TMP12]], <4 x i64> [[STEP_ADD]], <4 x i64> [[VEC_PHI1]]
; CHECK-VF4IC4-NEXT:    [[TMP17]] = select <4 x i1> [[TMP13]], <4 x i64> [[STEP_ADD_2]], <4 x i64> [[VEC_PHI2]]
; CHECK-VF4IC4-NEXT:    [[TMP18]] = select <4 x i1> [[TMP14]], <4 x i64> [[STEP_ADD_3]], <4 x i64> [[VEC_PHI3]]
; CHECK-VF4IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; CHECK-VF4IC4-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[STEP_ADD_3]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP19:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[TMP19]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
; CHECK-VF4IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[TMP15]], <4 x i64> [[TMP16]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX11:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX]], <4 x i64> [[TMP17]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX12:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX11]], <4 x i64> [[TMP18]])
; CHECK-VF4IC4-NEXT:    [[TMP20:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[RDX_MINMAX12]])
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP20]], -9223372036854775808
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP20]], i64 [[RDX_START]]
; CHECK-VF4IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC4:       [[SCALAR_PH]]:
; CHECK-VF4IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC4:       [[FOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC4-NEXT:    [[TMP21:%.*]] = load float, ptr [[ARRAYIDX]], align 4
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds float, ptr [[B]], i64 [[IV]]
; CHECK-VF4IC4-NEXT:    [[TMP22:%.*]] = load float, ptr [[ARRAYIDX1]], align 4
; CHECK-VF4IC4-NEXT:    [[CMP2:%.*]] = fcmp ogt float [[TMP21]], [[TMP22]]
; CHECK-VF4IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF4IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF4IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP15:![0-9]+]]
; CHECK-VF4IC4:       [[EXIT]]:
; CHECK-VF4IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF1IC4-LABEL: define i64 @select_fcmp(
; CHECK-VF1IC4-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF1IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF1IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF1IC4:       [[VECTOR_PH]]:
; CHECK-VF1IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF1IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF1IC4:       [[VECTOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP24:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI1:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP25:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI2:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP26:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI3:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP27:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 1
; CHECK-VF1IC4-NEXT:    [[TMP2:%.*]] = add i64 [[INDEX]], 2
; CHECK-VF1IC4-NEXT:    [[TMP3:%.*]] = add i64 [[INDEX]], 3
; CHECK-VF1IC4-NEXT:    [[TMP4:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[INDEX]]
; CHECK-VF1IC4-NEXT:    [[TMP5:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[TMP1]]
; CHECK-VF1IC4-NEXT:    [[TMP6:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[TMP2]]
; CHECK-VF1IC4-NEXT:    [[TMP7:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[TMP3]]
; CHECK-VF1IC4-NEXT:    [[TMP8:%.*]] = load float, ptr [[TMP4]], align 4
; CHECK-VF1IC4-NEXT:    [[TMP9:%.*]] = load float, ptr [[TMP5]], align 4
; CHECK-VF1IC4-NEXT:    [[TMP10:%.*]] = load float, ptr [[TMP6]], align 4
; CHECK-VF1IC4-NEXT:    [[TMP11:%.*]] = load float, ptr [[TMP7]], align 4
; CHECK-VF1IC4-NEXT:    [[TMP12:%.*]] = getelementptr inbounds float, ptr [[B]], i64 [[INDEX]]
; CHECK-VF1IC4-NEXT:    [[TMP13:%.*]] = getelementptr inbounds float, ptr [[B]], i64 [[TMP1]]
; CHECK-VF1IC4-NEXT:    [[TMP14:%.*]] = getelementptr inbounds float, ptr [[B]], i64 [[TMP2]]
; CHECK-VF1IC4-NEXT:    [[TMP15:%.*]] = getelementptr inbounds float, ptr [[B]], i64 [[TMP3]]
; CHECK-VF1IC4-NEXT:    [[TMP16:%.*]] = load float, ptr [[TMP12]], align 4
; CHECK-VF1IC4-NEXT:    [[TMP17:%.*]] = load float, ptr [[TMP13]], align 4
; CHECK-VF1IC4-NEXT:    [[TMP18:%.*]] = load float, ptr [[TMP14]], align 4
; CHECK-VF1IC4-NEXT:    [[TMP19:%.*]] = load float, ptr [[TMP15]], align 4
; CHECK-VF1IC4-NEXT:    [[TMP20:%.*]] = fcmp ogt float [[TMP8]], [[TMP16]]
; CHECK-VF1IC4-NEXT:    [[TMP21:%.*]] = fcmp ogt float [[TMP9]], [[TMP17]]
; CHECK-VF1IC4-NEXT:    [[TMP22:%.*]] = fcmp ogt float [[TMP10]], [[TMP18]]
; CHECK-VF1IC4-NEXT:    [[TMP23:%.*]] = fcmp ogt float [[TMP11]], [[TMP19]]
; CHECK-VF1IC4-NEXT:    [[TMP24]] = select i1 [[TMP20]], i64 [[INDEX]], i64 [[VEC_PHI]]
; CHECK-VF1IC4-NEXT:    [[TMP25]] = select i1 [[TMP21]], i64 [[TMP1]], i64 [[VEC_PHI1]]
; CHECK-VF1IC4-NEXT:    [[TMP26]] = select i1 [[TMP22]], i64 [[TMP2]], i64 [[VEC_PHI2]]
; CHECK-VF1IC4-NEXT:    [[TMP27]] = select i1 [[TMP23]], i64 [[TMP3]], i64 [[VEC_PHI3]]
; CHECK-VF1IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF1IC4-NEXT:    [[TMP28:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[TMP28]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
; CHECK-VF1IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX:%.*]] = call i64 @llvm.smax.i64(i64 [[TMP24]], i64 [[TMP25]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX4:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX]], i64 [[TMP26]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX5:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX4]], i64 [[TMP27]])
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[RDX_MINMAX5]], -9223372036854775808
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[RDX_MINMAX5]], i64 [[RDX_START]]
; CHECK-VF1IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF1IC4:       [[SCALAR_PH]]:
; CHECK-VF1IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF1IC4:       [[FOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[IV]]
; CHECK-VF1IC4-NEXT:    [[TMP29:%.*]] = load float, ptr [[ARRAYIDX]], align 4
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds float, ptr [[B]], i64 [[IV]]
; CHECK-VF1IC4-NEXT:    [[TMP30:%.*]] = load float, ptr [[ARRAYIDX1]], align 4
; CHECK-VF1IC4-NEXT:    [[CMP2:%.*]] = fcmp ogt float [[TMP29]], [[TMP30]]
; CHECK-VF1IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF1IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF1IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF1IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP15:![0-9]+]]
; CHECK-VF1IC4:       [[EXIT]]:
; CHECK-VF1IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF1IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
entry:
  br label %for.body

for.body:
  %iv = phi i64 [ %inc, %for.body ], [ 0, %entry ]
  %rdx = phi i64 [ %cond, %for.body ], [ %rdx.start, %entry ]
  %arrayidx = getelementptr inbounds float, ptr %a, i64 %iv
  %0 = load float, ptr %arrayidx, align 4
  %arrayidx1 = getelementptr inbounds float, ptr %b, i64 %iv
  %1 = load float, ptr %arrayidx1, align 4
  %cmp2 = fcmp ogt float %0, %1
  %cond = select i1 %cmp2, i64 %iv, i64 %rdx
  %inc = add nuw nsw i64 %iv, 1
  %exitcond.not = icmp eq i64 %inc, %n
  br i1 %exitcond.not, label %exit, label %for.body

exit:
  ret i64 %cond
}

define i64 @select_icmp_min_valid_iv_start(ptr %a, ptr %b, i64 %rdx.start, i64 %n) {
; CHECK-VF4IC1-LABEL: define i64 @select_icmp_min_valid_iv_start(
; CHECK-VF4IC1-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC1-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC1-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC1:       [[VECTOR_PH]]:
; CHECK-VF4IC1-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC1-NEXT:    [[IND_END:%.*]] = add i64 -9223372036854775807, [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC1:       [[VECTOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 -9223372036854775807, i64 -9223372036854775806, i64 -9223372036854775805, i64 -9223372036854775804>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP6:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP1]], align 8
; CHECK-VF4IC1-NEXT:    [[TMP3:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[INDEX]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD2:%.*]] = load <4 x i64>, ptr [[TMP3]], align 8
; CHECK-VF4IC1-NEXT:    [[TMP5:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD]], [[WIDE_LOAD2]]
; CHECK-VF4IC1-NEXT:    [[TMP6]] = select <4 x i1> [[TMP5]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF4IC1-NEXT:    [[VEC_IND_NEXT]] = add nsw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC1-NEXT:    [[TMP7:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[TMP7]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP16:![0-9]+]]
; CHECK-VF4IC1:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC1-NEXT:    [[TMP8:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[TMP6]])
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP8]], -9223372036854775808
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP8]], i64 [[RDX_START]]
; CHECK-VF4IC1-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC1:       [[SCALAR_PH]]:
; CHECK-VF4IC1-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[IND_END]], %[[MIDDLE_BLOCK]] ], [ -9223372036854775807, %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    [[BC_RESUME_VAL2:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC1:       [[FOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[IV_J:%.*]] = phi i64 [ [[INC3:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[IV_I:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL2]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV_I]]
; CHECK-VF4IC1-NEXT:    [[TMP9:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV_I]]
; CHECK-VF4IC1-NEXT:    [[TMP10:%.*]] = load i64, ptr [[ARRAYIDX1]], align 8
; CHECK-VF4IC1-NEXT:    [[CMP2:%.*]] = icmp sgt i64 [[TMP9]], [[TMP10]]
; CHECK-VF4IC1-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV_J]], i64 [[RDX]]
; CHECK-VF4IC1-NEXT:    [[INC]] = add nuw nsw i64 [[IV_I]], 1
; CHECK-VF4IC1-NEXT:    [[INC3]] = add nsw i64 [[IV_J]], 1
; CHECK-VF4IC1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC1-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP17:![0-9]+]]
; CHECK-VF4IC1:       [[EXIT]]:
; CHECK-VF4IC1-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC1-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF4IC4-LABEL: define i64 @select_icmp_min_valid_iv_start(
; CHECK-VF4IC4-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC4:       [[VECTOR_PH]]:
; CHECK-VF4IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC4-NEXT:    [[IND_END:%.*]] = add i64 -9223372036854775807, [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC4:       [[VECTOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 -9223372036854775807, i64 -9223372036854775806, i64 -9223372036854775805, i64 -9223372036854775804>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP15:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI2:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP16:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI3:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP17:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI4:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP18:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[STEP_ADD:%.*]] = add nsw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_2:%.*]] = add nsw <4 x i64> [[STEP_ADD]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_3:%.*]] = add nsw <4 x i64> [[STEP_ADD_2]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC4-NEXT:    [[TMP3:%.*]] = getelementptr inbounds i64, ptr [[TMP1]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[TMP1]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[TMP1]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP1]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD5:%.*]] = load <4 x i64>, ptr [[TMP3]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD6:%.*]] = load <4 x i64>, ptr [[TMP4]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD7:%.*]] = load <4 x i64>, ptr [[TMP5]], align 8
; CHECK-VF4IC4-NEXT:    [[TMP6:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[INDEX]]
; CHECK-VF4IC4-NEXT:    [[TMP8:%.*]] = getelementptr inbounds i64, ptr [[TMP6]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP9:%.*]] = getelementptr inbounds i64, ptr [[TMP6]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP10:%.*]] = getelementptr inbounds i64, ptr [[TMP6]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD8:%.*]] = load <4 x i64>, ptr [[TMP6]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD9:%.*]] = load <4 x i64>, ptr [[TMP8]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD10:%.*]] = load <4 x i64>, ptr [[TMP9]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD11:%.*]] = load <4 x i64>, ptr [[TMP10]], align 8
; CHECK-VF4IC4-NEXT:    [[TMP11:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD]], [[WIDE_LOAD8]]
; CHECK-VF4IC4-NEXT:    [[TMP12:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD5]], [[WIDE_LOAD9]]
; CHECK-VF4IC4-NEXT:    [[TMP13:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD6]], [[WIDE_LOAD10]]
; CHECK-VF4IC4-NEXT:    [[TMP14:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD7]], [[WIDE_LOAD11]]
; CHECK-VF4IC4-NEXT:    [[TMP15]] = select <4 x i1> [[TMP11]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC4-NEXT:    [[TMP16]] = select <4 x i1> [[TMP12]], <4 x i64> [[STEP_ADD]], <4 x i64> [[VEC_PHI2]]
; CHECK-VF4IC4-NEXT:    [[TMP17]] = select <4 x i1> [[TMP13]], <4 x i64> [[STEP_ADD_2]], <4 x i64> [[VEC_PHI3]]
; CHECK-VF4IC4-NEXT:    [[TMP18]] = select <4 x i1> [[TMP14]], <4 x i64> [[STEP_ADD_3]], <4 x i64> [[VEC_PHI4]]
; CHECK-VF4IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; CHECK-VF4IC4-NEXT:    [[VEC_IND_NEXT]] = add nsw <4 x i64> [[STEP_ADD_3]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP19:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[TMP19]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP16:![0-9]+]]
; CHECK-VF4IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[TMP15]], <4 x i64> [[TMP16]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX12:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX]], <4 x i64> [[TMP17]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX13:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX12]], <4 x i64> [[TMP18]])
; CHECK-VF4IC4-NEXT:    [[TMP20:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[RDX_MINMAX13]])
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP20]], -9223372036854775808
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP20]], i64 [[RDX_START]]
; CHECK-VF4IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC4:       [[SCALAR_PH]]:
; CHECK-VF4IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[IND_END]], %[[MIDDLE_BLOCK]] ], [ -9223372036854775807, %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    [[BC_RESUME_VAL13:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC4:       [[FOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[IV_J:%.*]] = phi i64 [ [[INC3:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[IV_I:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL13]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV_I]]
; CHECK-VF4IC4-NEXT:    [[TMP21:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV_I]]
; CHECK-VF4IC4-NEXT:    [[TMP22:%.*]] = load i64, ptr [[ARRAYIDX1]], align 8
; CHECK-VF4IC4-NEXT:    [[CMP2:%.*]] = icmp sgt i64 [[TMP21]], [[TMP22]]
; CHECK-VF4IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV_J]], i64 [[RDX]]
; CHECK-VF4IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV_I]], 1
; CHECK-VF4IC4-NEXT:    [[INC3]] = add nsw i64 [[IV_J]], 1
; CHECK-VF4IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP17:![0-9]+]]
; CHECK-VF4IC4:       [[EXIT]]:
; CHECK-VF4IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF1IC4-LABEL: define i64 @select_icmp_min_valid_iv_start(
; CHECK-VF1IC4-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF1IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF1IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF1IC4:       [[VECTOR_PH]]:
; CHECK-VF1IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF1IC4-NEXT:    [[IND_END:%.*]] = add i64 -9223372036854775807, [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF1IC4:       [[VECTOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP28:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI2:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP29:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI3:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP30:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI4:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP31:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[OFFSET_IDX:%.*]] = add i64 -9223372036854775807, [[INDEX]]
; CHECK-VF1IC4-NEXT:    [[TMP1:%.*]] = add i64 [[OFFSET_IDX]], 1
; CHECK-VF1IC4-NEXT:    [[TMP2:%.*]] = add i64 [[OFFSET_IDX]], 2
; CHECK-VF1IC4-NEXT:    [[TMP3:%.*]] = add i64 [[OFFSET_IDX]], 3
; CHECK-VF1IC4-NEXT:    [[TMP5:%.*]] = add i64 [[INDEX]], 1
; CHECK-VF1IC4-NEXT:    [[TMP6:%.*]] = add i64 [[INDEX]], 2
; CHECK-VF1IC4-NEXT:    [[TMP7:%.*]] = add i64 [[INDEX]], 3
; CHECK-VF1IC4-NEXT:    [[TMP8:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
; CHECK-VF1IC4-NEXT:    [[TMP9:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP5]]
; CHECK-VF1IC4-NEXT:    [[TMP10:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP6]]
; CHECK-VF1IC4-NEXT:    [[TMP11:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP7]]
; CHECK-VF1IC4-NEXT:    [[TMP12:%.*]] = load i64, ptr [[TMP8]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP13:%.*]] = load i64, ptr [[TMP9]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP14:%.*]] = load i64, ptr [[TMP10]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP15:%.*]] = load i64, ptr [[TMP11]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP16:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[INDEX]]
; CHECK-VF1IC4-NEXT:    [[TMP17:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[TMP5]]
; CHECK-VF1IC4-NEXT:    [[TMP18:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[TMP6]]
; CHECK-VF1IC4-NEXT:    [[TMP19:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[TMP7]]
; CHECK-VF1IC4-NEXT:    [[TMP20:%.*]] = load i64, ptr [[TMP16]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP21:%.*]] = load i64, ptr [[TMP17]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP22:%.*]] = load i64, ptr [[TMP18]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP23:%.*]] = load i64, ptr [[TMP19]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP24:%.*]] = icmp sgt i64 [[TMP12]], [[TMP20]]
; CHECK-VF1IC4-NEXT:    [[TMP25:%.*]] = icmp sgt i64 [[TMP13]], [[TMP21]]
; CHECK-VF1IC4-NEXT:    [[TMP26:%.*]] = icmp sgt i64 [[TMP14]], [[TMP22]]
; CHECK-VF1IC4-NEXT:    [[TMP27:%.*]] = icmp sgt i64 [[TMP15]], [[TMP23]]
; CHECK-VF1IC4-NEXT:    [[TMP28]] = select i1 [[TMP24]], i64 [[OFFSET_IDX]], i64 [[VEC_PHI]]
; CHECK-VF1IC4-NEXT:    [[TMP29]] = select i1 [[TMP25]], i64 [[TMP1]], i64 [[VEC_PHI2]]
; CHECK-VF1IC4-NEXT:    [[TMP30]] = select i1 [[TMP26]], i64 [[TMP2]], i64 [[VEC_PHI3]]
; CHECK-VF1IC4-NEXT:    [[TMP31]] = select i1 [[TMP27]], i64 [[TMP3]], i64 [[VEC_PHI4]]
; CHECK-VF1IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF1IC4-NEXT:    [[TMP32:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[TMP32]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP16:![0-9]+]]
; CHECK-VF1IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX:%.*]] = call i64 @llvm.smax.i64(i64 [[TMP28]], i64 [[TMP29]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX5:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX]], i64 [[TMP30]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX6:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX5]], i64 [[TMP31]])
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[RDX_MINMAX6]], -9223372036854775808
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[RDX_MINMAX6]], i64 [[RDX_START]]
; CHECK-VF1IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF1IC4:       [[SCALAR_PH]]:
; CHECK-VF1IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[IND_END]], %[[MIDDLE_BLOCK]] ], [ -9223372036854775807, %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    [[BC_RESUME_VAL6:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF1IC4:       [[FOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[IV_J:%.*]] = phi i64 [ [[INC3:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[IV_I:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL6]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV_I]]
; CHECK-VF1IC4-NEXT:    [[TMP33:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV_I]]
; CHECK-VF1IC4-NEXT:    [[TMP34:%.*]] = load i64, ptr [[ARRAYIDX1]], align 8
; CHECK-VF1IC4-NEXT:    [[CMP2:%.*]] = icmp sgt i64 [[TMP33]], [[TMP34]]
; CHECK-VF1IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV_J]], i64 [[RDX]]
; CHECK-VF1IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV_I]], 1
; CHECK-VF1IC4-NEXT:    [[INC3]] = add nsw i64 [[IV_J]], 1
; CHECK-VF1IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF1IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP17:![0-9]+]]
; CHECK-VF1IC4:       [[EXIT]]:
; CHECK-VF1IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF1IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
entry:
  br label %for.body

for.body:
  %iv.j = phi i64 [ %inc3, %for.body ], [ -9223372036854775807, %entry]
  %iv.i = phi i64 [ %inc, %for.body ], [ 0, %entry ]
  %rdx = phi i64 [ %cond, %for.body ], [ %rdx.start, %entry ]
  %arrayidx = getelementptr inbounds i64, ptr %a, i64 %iv.i
  %0 = load i64, ptr %arrayidx, align 8
  %arrayidx1 = getelementptr inbounds i64, ptr %b, i64 %iv.i
  %1 = load i64, ptr %arrayidx1, align 8
  %cmp2 = icmp sgt i64 %0, %1
  %cond = select i1 %cmp2, i64 %iv.j, i64 %rdx
  %inc = add nuw nsw i64 %iv.i, 1
  %inc3 = add nsw i64 %iv.j, 1
  %exitcond.not = icmp eq i64 %inc, %n
  br i1 %exitcond.not, label %exit, label %for.body

exit:
  ret i64 %cond
}

define i64 @select_icmp_unsigned_iv_range(ptr %a, ptr %b, i64 %rdx.start) {
; CHECK-VF4IC1-LABEL: define i64 @select_icmp_unsigned_iv_range(
; CHECK-VF4IC1-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[RDX_START:%.*]]) {
; CHECK-VF4IC1-NEXT:  [[ENTRY:.*:]]
; CHECK-VF4IC1-NEXT:    br label %[[VECTOR_PH:.*]]
; CHECK-VF4IC1:       [[VECTOR_PH]]:
; CHECK-VF4IC1-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC1:       [[VECTOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 -9223372036854775808, i64 -9223372036854775807, i64 -9223372036854775806, i64 -9223372036854775805>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP5:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[TMP0:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP0]], align 8
; CHECK-VF4IC1-NEXT:    [[TMP2:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[INDEX]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD1:%.*]] = load <4 x i64>, ptr [[TMP2]], align 8
; CHECK-VF4IC1-NEXT:    [[TMP4:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD]], [[WIDE_LOAD1]]
; CHECK-VF4IC1-NEXT:    [[TMP5]] = select <4 x i1> [[TMP4]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF4IC1-NEXT:    [[VEC_IND_NEXT]] = add nsw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC1-NEXT:    [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], 9223372036854775804
; CHECK-VF4IC1-NEXT:    br i1 [[TMP6]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP18:![0-9]+]]
; CHECK-VF4IC1:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC1-NEXT:    [[TMP7:%.*]] = call i64 @llvm.vector.reduce.umax.v4i64(<4 x i64> [[TMP5]])
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP7]], 0
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP7]], i64 [[RDX_START]]
; CHECK-VF4IC1-NEXT:    br label %[[SCALAR_PH:.*]]
; CHECK-VF4IC1:       [[SCALAR_PH]]:
; CHECK-VF4IC1-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC1:       [[FOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[IV_J:%.*]] = phi i64 [ -4, %[[SCALAR_PH]] ], [ [[INC3:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[IV_I:%.*]] = phi i64 [ 9223372036854775804, %[[SCALAR_PH]] ], [ [[INC:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[SCALAR_PH]] ], [ [[COND:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV_I]]
; CHECK-VF4IC1-NEXT:    [[TMP9:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV_I]]
; CHECK-VF4IC1-NEXT:    [[TMP10:%.*]] = load i64, ptr [[ARRAYIDX1]], align 8
; CHECK-VF4IC1-NEXT:    [[CMP2:%.*]] = icmp sgt i64 [[TMP9]], [[TMP10]]
; CHECK-VF4IC1-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV_J]], i64 [[RDX]]
; CHECK-VF4IC1-NEXT:    [[INC]] = add nuw nsw i64 [[IV_I]], 1
; CHECK-VF4IC1-NEXT:    [[INC3]] = add nsw i64 [[IV_J]], 1
; CHECK-VF4IC1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], 9223372036854775806
; CHECK-VF4IC1-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT:.*]], label %[[FOR_BODY]], !llvm.loop [[LOOP19:![0-9]+]]
; CHECK-VF4IC1:       [[EXIT]]:
; CHECK-VF4IC1-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF4IC4-LABEL: define i64 @select_icmp_unsigned_iv_range(
; CHECK-VF4IC4-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[RDX_START:%.*]]) {
; CHECK-VF4IC4-NEXT:  [[ENTRY:.*:]]
; CHECK-VF4IC4-NEXT:    br label %[[VECTOR_PH:.*]]
; CHECK-VF4IC4:       [[VECTOR_PH]]:
; CHECK-VF4IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC4:       [[VECTOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 -9223372036854775808, i64 -9223372036854775807, i64 -9223372036854775806, i64 -9223372036854775805>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP14:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI1:%.*]] = phi <4 x i64> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP15:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI2:%.*]] = phi <4 x i64> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP16:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI3:%.*]] = phi <4 x i64> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP17:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[STEP_ADD:%.*]] = add nsw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_2:%.*]] = add nsw <4 x i64> [[STEP_ADD]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_3:%.*]] = add nsw <4 x i64> [[STEP_ADD_2]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP0:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC4-NEXT:    [[TMP2:%.*]] = getelementptr inbounds i64, ptr [[TMP0]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP3:%.*]] = getelementptr inbounds i64, ptr [[TMP0]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[TMP0]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP0]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD4:%.*]] = load <4 x i64>, ptr [[TMP2]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD5:%.*]] = load <4 x i64>, ptr [[TMP3]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD6:%.*]] = load <4 x i64>, ptr [[TMP4]], align 8
; CHECK-VF4IC4-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[INDEX]]
; CHECK-VF4IC4-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i64, ptr [[TMP5]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP8:%.*]] = getelementptr inbounds i64, ptr [[TMP5]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP9:%.*]] = getelementptr inbounds i64, ptr [[TMP5]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD7:%.*]] = load <4 x i64>, ptr [[TMP5]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD8:%.*]] = load <4 x i64>, ptr [[TMP7]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD9:%.*]] = load <4 x i64>, ptr [[TMP8]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD10:%.*]] = load <4 x i64>, ptr [[TMP9]], align 8
; CHECK-VF4IC4-NEXT:    [[TMP10:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD]], [[WIDE_LOAD7]]
; CHECK-VF4IC4-NEXT:    [[TMP11:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD4]], [[WIDE_LOAD8]]
; CHECK-VF4IC4-NEXT:    [[TMP12:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD5]], [[WIDE_LOAD9]]
; CHECK-VF4IC4-NEXT:    [[TMP13:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD6]], [[WIDE_LOAD10]]
; CHECK-VF4IC4-NEXT:    [[TMP14]] = select <4 x i1> [[TMP10]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC4-NEXT:    [[TMP15]] = select <4 x i1> [[TMP11]], <4 x i64> [[STEP_ADD]], <4 x i64> [[VEC_PHI1]]
; CHECK-VF4IC4-NEXT:    [[TMP16]] = select <4 x i1> [[TMP12]], <4 x i64> [[STEP_ADD_2]], <4 x i64> [[VEC_PHI2]]
; CHECK-VF4IC4-NEXT:    [[TMP17]] = select <4 x i1> [[TMP13]], <4 x i64> [[STEP_ADD_3]], <4 x i64> [[VEC_PHI3]]
; CHECK-VF4IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; CHECK-VF4IC4-NEXT:    [[VEC_IND_NEXT]] = add nsw <4 x i64> [[STEP_ADD_3]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP18:%.*]] = icmp eq i64 [[INDEX_NEXT]], 9223372036854775792
; CHECK-VF4IC4-NEXT:    br i1 [[TMP18]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP18:![0-9]+]]
; CHECK-VF4IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX:%.*]] = call <4 x i64> @llvm.umax.v4i64(<4 x i64> [[TMP14]], <4 x i64> [[TMP15]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX11:%.*]] = call <4 x i64> @llvm.umax.v4i64(<4 x i64> [[RDX_MINMAX]], <4 x i64> [[TMP16]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX12:%.*]] = call <4 x i64> @llvm.umax.v4i64(<4 x i64> [[RDX_MINMAX11]], <4 x i64> [[TMP17]])
; CHECK-VF4IC4-NEXT:    [[TMP19:%.*]] = call i64 @llvm.vector.reduce.umax.v4i64(<4 x i64> [[RDX_MINMAX12]])
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP19]], 0
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP19]], i64 [[RDX_START]]
; CHECK-VF4IC4-NEXT:    br label %[[SCALAR_PH:.*]]
; CHECK-VF4IC4:       [[SCALAR_PH]]:
; CHECK-VF4IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC4:       [[FOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[IV_J:%.*]] = phi i64 [ -16, %[[SCALAR_PH]] ], [ [[INC3:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[IV_I:%.*]] = phi i64 [ 9223372036854775792, %[[SCALAR_PH]] ], [ [[INC:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[SCALAR_PH]] ], [ [[COND:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV_I]]
; CHECK-VF4IC4-NEXT:    [[TMP21:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV_I]]
; CHECK-VF4IC4-NEXT:    [[TMP22:%.*]] = load i64, ptr [[ARRAYIDX1]], align 8
; CHECK-VF4IC4-NEXT:    [[CMP2:%.*]] = icmp sgt i64 [[TMP21]], [[TMP22]]
; CHECK-VF4IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV_J]], i64 [[RDX]]
; CHECK-VF4IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV_I]], 1
; CHECK-VF4IC4-NEXT:    [[INC3]] = add nsw i64 [[IV_J]], 1
; CHECK-VF4IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], 9223372036854775806
; CHECK-VF4IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT:.*]], label %[[FOR_BODY]], !llvm.loop [[LOOP19:![0-9]+]]
; CHECK-VF4IC4:       [[EXIT]]:
; CHECK-VF4IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF1IC4-LABEL: define i64 @select_icmp_unsigned_iv_range(
; CHECK-VF1IC4-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[RDX_START:%.*]]) {
; CHECK-VF1IC4-NEXT:  [[ENTRY:.*:]]
; CHECK-VF1IC4-NEXT:    br label %[[VECTOR_PH:.*]]
; CHECK-VF1IC4:       [[VECTOR_PH]]:
; CHECK-VF1IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF1IC4:       [[VECTOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[IV_I:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[TMP26:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI1:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[TMP27:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI2:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[TMP28:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI3:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[TMP29:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[OFFSET_IDX:%.*]] = add i64 -9223372036854775808, [[IV_I]]
; CHECK-VF1IC4-NEXT:    [[TMP0:%.*]] = add i64 [[OFFSET_IDX]], 1
; CHECK-VF1IC4-NEXT:    [[TMP1:%.*]] = add i64 [[OFFSET_IDX]], 2
; CHECK-VF1IC4-NEXT:    [[TMP2:%.*]] = add i64 [[OFFSET_IDX]], 3
; CHECK-VF1IC4-NEXT:    [[TMP3:%.*]] = add i64 [[IV_I]], 1
; CHECK-VF1IC4-NEXT:    [[TMP4:%.*]] = add i64 [[IV_I]], 2
; CHECK-VF1IC4-NEXT:    [[TMP5:%.*]] = add i64 [[IV_I]], 3
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV_I]]
; CHECK-VF1IC4-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP3]]
; CHECK-VF1IC4-NEXT:    [[TMP8:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP4]]
; CHECK-VF1IC4-NEXT:    [[TMP9:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP5]]
; CHECK-VF1IC4-NEXT:    [[TMP36:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP11:%.*]] = load i64, ptr [[TMP7]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP12:%.*]] = load i64, ptr [[TMP8]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP13:%.*]] = load i64, ptr [[TMP9]], align 8
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV_I]]
; CHECK-VF1IC4-NEXT:    [[TMP15:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[TMP3]]
; CHECK-VF1IC4-NEXT:    [[TMP16:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[TMP4]]
; CHECK-VF1IC4-NEXT:    [[TMP17:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[TMP5]]
; CHECK-VF1IC4-NEXT:    [[TMP37:%.*]] = load i64, ptr [[ARRAYIDX1]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP19:%.*]] = load i64, ptr [[TMP15]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP20:%.*]] = load i64, ptr [[TMP16]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP21:%.*]] = load i64, ptr [[TMP17]], align 8
; CHECK-VF1IC4-NEXT:    [[CMP2:%.*]] = icmp sgt i64 [[TMP36]], [[TMP37]]
; CHECK-VF1IC4-NEXT:    [[TMP23:%.*]] = icmp sgt i64 [[TMP11]], [[TMP19]]
; CHECK-VF1IC4-NEXT:    [[TMP24:%.*]] = icmp sgt i64 [[TMP12]], [[TMP20]]
; CHECK-VF1IC4-NEXT:    [[TMP25:%.*]] = icmp sgt i64 [[TMP13]], [[TMP21]]
; CHECK-VF1IC4-NEXT:    [[TMP26]] = select i1 [[CMP2]], i64 [[OFFSET_IDX]], i64 [[VEC_PHI]]
; CHECK-VF1IC4-NEXT:    [[TMP27]] = select i1 [[TMP23]], i64 [[TMP0]], i64 [[VEC_PHI1]]
; CHECK-VF1IC4-NEXT:    [[TMP28]] = select i1 [[TMP24]], i64 [[TMP1]], i64 [[VEC_PHI2]]
; CHECK-VF1IC4-NEXT:    [[TMP29]] = select i1 [[TMP25]], i64 [[TMP2]], i64 [[VEC_PHI3]]
; CHECK-VF1IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[IV_I]], 4
; CHECK-VF1IC4-NEXT:    [[TMP30:%.*]] = icmp eq i64 [[INDEX_NEXT]], 9223372036854775804
; CHECK-VF1IC4-NEXT:    br i1 [[TMP30]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP18:![0-9]+]]
; CHECK-VF1IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX:%.*]] = call i64 @llvm.umax.i64(i64 [[TMP26]], i64 [[TMP27]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX4:%.*]] = call i64 @llvm.umax.i64(i64 [[RDX_MINMAX]], i64 [[TMP28]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX5:%.*]] = call i64 @llvm.umax.i64(i64 [[RDX_MINMAX4]], i64 [[TMP29]])
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[RDX_MINMAX5]], 0
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[RDX_MINMAX5]], i64 [[RDX_START]]
; CHECK-VF1IC4-NEXT:    br label %[[SCALAR_PH:.*]]
; CHECK-VF1IC4:       [[SCALAR_PH]]:
; CHECK-VF1IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF1IC4:       [[FOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[IV_J:%.*]] = phi i64 [ -4, %[[SCALAR_PH]] ], [ [[INC3:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[IV_I1:%.*]] = phi i64 [ 9223372036854775804, %[[SCALAR_PH]] ], [ [[INC:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[SCALAR_PH]] ], [ [[COND:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV_I1]]
; CHECK-VF1IC4-NEXT:    [[TMP31:%.*]] = load i64, ptr [[ARRAYIDX2]], align 8
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX3:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV_I1]]
; CHECK-VF1IC4-NEXT:    [[TMP32:%.*]] = load i64, ptr [[ARRAYIDX3]], align 8
; CHECK-VF1IC4-NEXT:    [[CMP3:%.*]] = icmp sgt i64 [[TMP31]], [[TMP32]]
; CHECK-VF1IC4-NEXT:    [[COND]] = select i1 [[CMP3]], i64 [[IV_J]], i64 [[RDX]]
; CHECK-VF1IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV_I1]], 1
; CHECK-VF1IC4-NEXT:    [[INC3]] = add nsw i64 [[IV_J]], 1
; CHECK-VF1IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], 9223372036854775806
; CHECK-VF1IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT:.*]], label %[[FOR_BODY]], !llvm.loop [[LOOP19:![0-9]+]]
; CHECK-VF1IC4:       [[EXIT]]:
; CHECK-VF1IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
entry:
  br label %for.body

for.body:
  %iv.j = phi i64 [ 9223372036854775808, %entry], [ %inc3, %for.body ]
  %iv.i = phi i64 [ 0, %entry ], [ %inc, %for.body ]
  %rdx = phi i64 [ %rdx.start, %entry ], [ %cond, %for.body ]
  %arrayidx = getelementptr inbounds i64, ptr %a, i64 %iv.i
  %0 = load i64, ptr %arrayidx, align 8
  %arrayidx1 = getelementptr inbounds i64, ptr %b, i64 %iv.i
  %1 = load i64, ptr %arrayidx1, align 8
  %cmp2 = icmp sgt i64 %0, %1
  %cond = select i1 %cmp2, i64 %iv.j, i64 %rdx
  %inc = add nuw nsw i64 %iv.i, 1
  %inc3 = add nsw i64 %iv.j, 1
  %exitcond.not = icmp eq i64 %inc, 9223372036854775806
  br i1 %exitcond.not, label %exit, label %for.body

exit:
  ret i64 %cond
}

; Negative tests

define float @not_vectorized_select_float_induction_icmp(ptr %a, ptr %b, float %rdx.start, i64 %n) {
; CHECK-VF4IC1-LABEL: define float @not_vectorized_select_float_induction_icmp(
; CHECK-VF4IC1-SAME: ptr [[A:%.*]], ptr [[B:%.*]], float [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC1-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC1-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC1:       [[VECTOR_PH]]:
; CHECK-VF4IC1-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC1-NEXT:    [[DOTCAST:%.*]] = sitofp i64 [[N_VEC]] to float
; CHECK-VF4IC1-NEXT:    [[TMP3:%.*]] = fmul float 1.000000e+00, [[DOTCAST]]
; CHECK-VF4IC1-NEXT:    [[TMP13:%.*]] = fadd float 0.000000e+00, [[TMP3]]
; CHECK-VF4IC1-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x float> poison, float [[RDX_START]], i64 0
; CHECK-VF4IC1-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x float> [[BROADCAST_SPLATINSERT]], <4 x float> poison, <4 x i32> zeroinitializer
; CHECK-VF4IC1-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC1:       [[FOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[IV:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_IND:%.*]] = phi <4 x float> [ <float 0.000000e+00, float 1.000000e+00, float 2.000000e+00, float 3.000000e+00>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_PHI:%.*]] = phi <4 x float> [ [[BROADCAST_SPLAT]], %[[VECTOR_PH]] ], [ [[TMP9:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[TMP2:%.*]] = phi <4 x i1> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP8:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[ARRAYIDX]], align 8
; CHECK-VF4IC1-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD1:%.*]] = load <4 x i64>, ptr [[TMP4]], align 8
; CHECK-VF4IC1-NEXT:    [[TMP5:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD]], [[WIDE_LOAD1]]
; CHECK-VF4IC1-NEXT:    [[TMP6:%.*]] = freeze <4 x i1> [[TMP5]]
; CHECK-VF4IC1-NEXT:    [[TMP7:%.*]] = call i1 @llvm.vector.reduce.or.v4i1(<4 x i1> [[TMP6]])
; CHECK-VF4IC1-NEXT:    [[TMP8]] = select i1 [[TMP7]], <4 x i1> [[TMP5]], <4 x i1> [[TMP2]]
; CHECK-VF4IC1-NEXT:    [[TMP9]] = select i1 [[TMP7]], <4 x float> [[VEC_IND]], <4 x float> [[VEC_PHI]]
; CHECK-VF4IC1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[IV]], 4
; CHECK-VF4IC1-NEXT:    [[VEC_IND_NEXT]] = fadd <4 x float> [[VEC_IND]], splat (float 4.000000e+00)
; CHECK-VF4IC1-NEXT:    [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[TMP10]], label %[[MIDDLE_BLOCK:.*]], label %[[FOR_BODY]], !llvm.loop [[LOOP20:![0-9]+]]
; CHECK-VF4IC1:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC1-NEXT:    [[TMP11:%.*]] = extractelement <4 x float> [[BROADCAST_SPLAT]], i64 0
; CHECK-VF4IC1-NEXT:    [[TMP12:%.*]] = call float @llvm.experimental.vector.extract.last.active.v4f32(<4 x float> [[TMP9]], <4 x i1> [[TMP8]], float [[TMP11]])
; CHECK-VF4IC1-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC1:       [[SCALAR_PH]]:
; CHECK-VF4IC1-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    [[BC_RESUME_VAL2:%.*]] = phi float [ [[TMP13]], %[[MIDDLE_BLOCK]] ], [ 0.000000e+00, %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    [[BC_MERGE_RDX:%.*]] = phi float [ [[TMP12]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    br label %[[FOR_BODY1:.*]]
; CHECK-VF4IC1:       [[FOR_BODY1]]:
; CHECK-VF4IC1-NEXT:    [[IV1:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY1]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[FIV:%.*]] = phi float [ [[CONV3:%.*]], %[[FOR_BODY1]] ], [ [[BC_RESUME_VAL2]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[RDX:%.*]] = phi float [ [[COND:%.*]], %[[FOR_BODY1]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV1]]
; CHECK-VF4IC1-NEXT:    [[TMP0:%.*]] = load i64, ptr [[ARRAYIDX2]], align 8
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV1]]
; CHECK-VF4IC1-NEXT:    [[TMP1:%.*]] = load i64, ptr [[ARRAYIDX1]], align 8
; CHECK-VF4IC1-NEXT:    [[CMP2:%.*]] = icmp sgt i64 [[TMP0]], [[TMP1]]
; CHECK-VF4IC1-NEXT:    [[COND]] = select i1 [[CMP2]], float [[FIV]], float [[RDX]]
; CHECK-VF4IC1-NEXT:    [[CONV3]] = fadd float [[FIV]], 1.000000e+00
; CHECK-VF4IC1-NEXT:    [[INC]] = add nuw nsw i64 [[IV1]], 1
; CHECK-VF4IC1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC1-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY1]], !llvm.loop [[LOOP21:![0-9]+]]
; CHECK-VF4IC1:       [[EXIT]]:
; CHECK-VF4IC1-NEXT:    [[COND_LCSSA:%.*]] = phi float [ [[COND]], %[[FOR_BODY1]] ], [ [[TMP12]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC1-NEXT:    ret float [[COND_LCSSA]]
;
; CHECK-VF4IC4-LABEL: define float @not_vectorized_select_float_induction_icmp(
; CHECK-VF4IC4-SAME: ptr [[A:%.*]], ptr [[B:%.*]], float [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC4:       [[VECTOR_PH]]:
; CHECK-VF4IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC4-NEXT:    [[DOTCAST:%.*]] = sitofp i64 [[N_VEC]] to float
; CHECK-VF4IC4-NEXT:    [[TMP3:%.*]] = fmul float 1.000000e+00, [[DOTCAST]]
; CHECK-VF4IC4-NEXT:    [[TMP13:%.*]] = fadd float 0.000000e+00, [[TMP3]]
; CHECK-VF4IC4-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x float> poison, float [[RDX_START]], i64 0
; CHECK-VF4IC4-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x float> [[BROADCAST_SPLATINSERT]], <4 x float> poison, <4 x i32> zeroinitializer
; CHECK-VF4IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC4:       [[FOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[IV:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_IND:%.*]] = phi <4 x float> [ <float 0.000000e+00, float 1.000000e+00, float 2.000000e+00, float 3.000000e+00>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI:%.*]] = phi <4 x float> [ [[BROADCAST_SPLAT]], %[[VECTOR_PH]] ], [ [[TMP9:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI1:%.*]] = phi <4 x float> [ [[BROADCAST_SPLAT]], %[[VECTOR_PH]] ], [ [[TMP31:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI2:%.*]] = phi <4 x float> [ [[BROADCAST_SPLAT]], %[[VECTOR_PH]] ], [ [[TMP32:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI3:%.*]] = phi <4 x float> [ [[BROADCAST_SPLAT]], %[[VECTOR_PH]] ], [ [[TMP33:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[TMP2:%.*]] = phi <4 x i1> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP8:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[TMP14:%.*]] = phi <4 x i1> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP27:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[TMP18:%.*]] = phi <4 x i1> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP28:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[TMP25:%.*]] = phi <4 x i1> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP29:%.*]], %[[FOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[STEP_ADD:%.*]] = fadd <4 x float> [[VEC_IND]], splat (float 4.000000e+00)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_2:%.*]] = fadd <4 x float> [[STEP_ADD]], splat (float 4.000000e+00)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_3:%.*]] = fadd <4 x float> [[STEP_ADD_2]], splat (float 4.000000e+00)
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC4-NEXT:    [[TMP26:%.*]] = getelementptr inbounds i64, ptr [[ARRAYIDX]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP30:%.*]] = getelementptr inbounds i64, ptr [[ARRAYIDX]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP34:%.*]] = getelementptr inbounds i64, ptr [[ARRAYIDX]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[ARRAYIDX]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD4:%.*]] = load <4 x i64>, ptr [[TMP26]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD5:%.*]] = load <4 x i64>, ptr [[TMP30]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD6:%.*]] = load <4 x i64>, ptr [[TMP34]], align 8
; CHECK-VF4IC4-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV]]
; CHECK-VF4IC4-NEXT:    [[TMP35:%.*]] = getelementptr inbounds i64, ptr [[TMP4]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP36:%.*]] = getelementptr inbounds i64, ptr [[TMP4]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP40:%.*]] = getelementptr inbounds i64, ptr [[TMP4]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD1:%.*]] = load <4 x i64>, ptr [[TMP4]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD8:%.*]] = load <4 x i64>, ptr [[TMP35]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD9:%.*]] = load <4 x i64>, ptr [[TMP36]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD10:%.*]] = load <4 x i64>, ptr [[TMP40]], align 8
; CHECK-VF4IC4-NEXT:    [[TMP5:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD]], [[WIDE_LOAD1]]
; CHECK-VF4IC4-NEXT:    [[TMP15:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD4]], [[WIDE_LOAD8]]
; CHECK-VF4IC4-NEXT:    [[TMP16:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD5]], [[WIDE_LOAD9]]
; CHECK-VF4IC4-NEXT:    [[TMP17:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD6]], [[WIDE_LOAD10]]
; CHECK-VF4IC4-NEXT:    [[TMP6:%.*]] = freeze <4 x i1> [[TMP5]]
; CHECK-VF4IC4-NEXT:    [[TMP19:%.*]] = freeze <4 x i1> [[TMP15]]
; CHECK-VF4IC4-NEXT:    [[TMP20:%.*]] = or <4 x i1> [[TMP6]], [[TMP19]]
; CHECK-VF4IC4-NEXT:    [[TMP21:%.*]] = freeze <4 x i1> [[TMP16]]
; CHECK-VF4IC4-NEXT:    [[TMP22:%.*]] = or <4 x i1> [[TMP20]], [[TMP21]]
; CHECK-VF4IC4-NEXT:    [[TMP23:%.*]] = freeze <4 x i1> [[TMP17]]
; CHECK-VF4IC4-NEXT:    [[TMP24:%.*]] = or <4 x i1> [[TMP22]], [[TMP23]]
; CHECK-VF4IC4-NEXT:    [[TMP7:%.*]] = call i1 @llvm.vector.reduce.or.v4i1(<4 x i1> [[TMP24]])
; CHECK-VF4IC4-NEXT:    [[TMP8]] = select i1 [[TMP7]], <4 x i1> [[TMP5]], <4 x i1> [[TMP2]]
; CHECK-VF4IC4-NEXT:    [[TMP27]] = select i1 [[TMP7]], <4 x i1> [[TMP15]], <4 x i1> [[TMP14]]
; CHECK-VF4IC4-NEXT:    [[TMP28]] = select i1 [[TMP7]], <4 x i1> [[TMP16]], <4 x i1> [[TMP18]]
; CHECK-VF4IC4-NEXT:    [[TMP29]] = select i1 [[TMP7]], <4 x i1> [[TMP17]], <4 x i1> [[TMP25]]
; CHECK-VF4IC4-NEXT:    [[TMP9]] = select i1 [[TMP7]], <4 x float> [[VEC_IND]], <4 x float> [[VEC_PHI]]
; CHECK-VF4IC4-NEXT:    [[TMP31]] = select i1 [[TMP7]], <4 x float> [[STEP_ADD]], <4 x float> [[VEC_PHI1]]
; CHECK-VF4IC4-NEXT:    [[TMP32]] = select i1 [[TMP7]], <4 x float> [[STEP_ADD_2]], <4 x float> [[VEC_PHI2]]
; CHECK-VF4IC4-NEXT:    [[TMP33]] = select i1 [[TMP7]], <4 x float> [[STEP_ADD_3]], <4 x float> [[VEC_PHI3]]
; CHECK-VF4IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[IV]], 16
; CHECK-VF4IC4-NEXT:    [[VEC_IND_NEXT]] = fadd <4 x float> [[STEP_ADD_3]], splat (float 4.000000e+00)
; CHECK-VF4IC4-NEXT:    [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[TMP10]], label %[[MIDDLE_BLOCK:.*]], label %[[FOR_BODY]], !llvm.loop [[LOOP20:![0-9]+]]
; CHECK-VF4IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC4-NEXT:    [[TMP11:%.*]] = extractelement <4 x float> [[BROADCAST_SPLAT]], i64 0
; CHECK-VF4IC4-NEXT:    [[TMP12:%.*]] = call float @llvm.experimental.vector.extract.last.active.v4f32(<4 x float> [[TMP9]], <4 x i1> [[TMP8]], float [[TMP11]])
; CHECK-VF4IC4-NEXT:    [[TMP37:%.*]] = call float @llvm.experimental.vector.extract.last.active.v4f32(<4 x float> [[TMP31]], <4 x i1> [[TMP27]], float [[TMP12]])
; CHECK-VF4IC4-NEXT:    [[TMP38:%.*]] = call float @llvm.experimental.vector.extract.last.active.v4f32(<4 x float> [[TMP32]], <4 x i1> [[TMP28]], float [[TMP37]])
; CHECK-VF4IC4-NEXT:    [[TMP39:%.*]] = call float @llvm.experimental.vector.extract.last.active.v4f32(<4 x float> [[TMP33]], <4 x i1> [[TMP29]], float [[TMP38]])
; CHECK-VF4IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC4:       [[SCALAR_PH]]:
; CHECK-VF4IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    [[BC_RESUME_VAL11:%.*]] = phi float [ [[TMP13]], %[[MIDDLE_BLOCK]] ], [ 0.000000e+00, %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi float [ [[TMP39]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    br label %[[FOR_BODY1:.*]]
; CHECK-VF4IC4:       [[FOR_BODY1]]:
; CHECK-VF4IC4-NEXT:    [[IV1:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY1]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[FIV:%.*]] = phi float [ [[CONV3:%.*]], %[[FOR_BODY1]] ], [ [[BC_RESUME_VAL11]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[RDX:%.*]] = phi float [ [[COND:%.*]], %[[FOR_BODY1]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV1]]
; CHECK-VF4IC4-NEXT:    [[TMP0:%.*]] = load i64, ptr [[ARRAYIDX2]], align 8
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV1]]
; CHECK-VF4IC4-NEXT:    [[TMP1:%.*]] = load i64, ptr [[ARRAYIDX1]], align 8
; CHECK-VF4IC4-NEXT:    [[CMP2:%.*]] = icmp sgt i64 [[TMP0]], [[TMP1]]
; CHECK-VF4IC4-NEXT:    [[COND]] = select i1 [[CMP2]], float [[FIV]], float [[RDX]]
; CHECK-VF4IC4-NEXT:    [[CONV3]] = fadd float [[FIV]], 1.000000e+00
; CHECK-VF4IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV1]], 1
; CHECK-VF4IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY1]], !llvm.loop [[LOOP21:![0-9]+]]
; CHECK-VF4IC4:       [[EXIT]]:
; CHECK-VF4IC4-NEXT:    [[COND_LCSSA:%.*]] = phi float [ [[COND]], %[[FOR_BODY1]] ], [ [[TMP39]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC4-NEXT:    ret float [[COND_LCSSA]]
;
; CHECK-VF1IC4-LABEL: define float @not_vectorized_select_float_induction_icmp(
; CHECK-VF1IC4-SAME: ptr [[A:%.*]], ptr [[B:%.*]], float [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF1IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF1IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF1IC4:       [[FOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    [[FIV:%.*]] = phi float [ [[CONV3:%.*]], %[[FOR_BODY]] ], [ 0.000000e+00, %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    [[RDX:%.*]] = phi float [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-VF1IC4-NEXT:    [[TMP0:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV]]
; CHECK-VF1IC4-NEXT:    [[TMP1:%.*]] = load i64, ptr [[ARRAYIDX1]], align 8
; CHECK-VF1IC4-NEXT:    [[CMP2:%.*]] = icmp sgt i64 [[TMP0]], [[TMP1]]
; CHECK-VF1IC4-NEXT:    [[COND]] = select i1 [[CMP2]], float [[FIV]], float [[RDX]]
; CHECK-VF1IC4-NEXT:    [[CONV3]] = fadd float [[FIV]], 1.000000e+00
; CHECK-VF1IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF1IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF1IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT:.*]], label %[[FOR_BODY]]
; CHECK-VF1IC4:       [[EXIT]]:
; CHECK-VF1IC4-NEXT:    [[COND_LCSSA:%.*]] = phi float [ [[COND]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    ret float [[COND_LCSSA]]
;
entry:
  br label %for.body

for.body:
  %iv = phi i64 [ %inc, %for.body ], [ 0, %entry ]
  %fiv = phi float [ %conv3, %for.body ], [ 0.000000e+00, %entry ]
  %rdx = phi float [ %cond, %for.body ], [ %rdx.start, %entry ]
  %arrayidx = getelementptr inbounds i64, ptr %a, i64 %iv
  %0 = load i64, ptr %arrayidx, align 8
  %arrayidx1 = getelementptr inbounds i64, ptr %b, i64 %iv
  %1 = load i64, ptr %arrayidx1, align 8
  %cmp2 = icmp sgt i64 %0, %1
  %cond = select i1 %cmp2, float %fiv, float %rdx
  %conv3 = fadd float %fiv, 1.000000e+00
  %inc = add nuw nsw i64 %iv, 1
  %exitcond.not = icmp eq i64 %inc, %n
  br i1 %exitcond.not, label %exit, label %for.body

exit:
  ret float %cond
}

; The sentinel value for increasing-IV vectorization is -LONG_MAX, and since
; the IV hits this value, it is vectorized as a generic last-active reduction.
define i64 @not_vectorized_select_icmp_iv_out_of_bound(ptr %a, ptr %b, i64 %rdx.start, i64 %n) {
; CHECK-VF4IC1-LABEL: define i64 @not_vectorized_select_icmp_iv_out_of_bound(
; CHECK-VF4IC1-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC1-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC1-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC1:       [[VECTOR_PH]]:
; CHECK-VF4IC1-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC1-NEXT:    [[TMP11:%.*]] = add i64 -9223372036854775808, [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC1:       [[VECTOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 -9223372036854775808, i64 -9223372036854775807, i64 -9223372036854775806, i64 -9223372036854775805>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP5:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_PHI1:%.*]] = phi <4 x i1> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP4:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[TMP12:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP12]], align 8
; CHECK-VF4IC1-NEXT:    [[TMP2:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[INDEX]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD1:%.*]] = load <4 x i64>, ptr [[TMP2]], align 8
; CHECK-VF4IC1-NEXT:    [[TMP3:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD]], [[WIDE_LOAD1]]
; CHECK-VF4IC1-NEXT:    [[TMP4]] = or <4 x i1> [[VEC_PHI1]], [[TMP3]]
; CHECK-VF4IC1-NEXT:    [[TMP5]] = select <4 x i1> [[TMP3]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF4IC1-NEXT:    [[VEC_IND_NEXT]] = add nsw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC1-NEXT:    [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[TMP8]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP22:![0-9]+]]
; CHECK-VF4IC1:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC1-NEXT:    [[TMP7:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[TMP5]])
; CHECK-VF4IC1-NEXT:    [[TMP9:%.*]] = call i1 @llvm.vector.reduce.or.v4i1(<4 x i1> [[TMP4]])
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT_CMP:%.*]] = freeze i1 [[TMP9]]
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP7]], i64 [[RDX_START]]
; CHECK-VF4IC1-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC1:       [[SCALAR_PH]]:
; CHECK-VF4IC1-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[TMP11]], %[[MIDDLE_BLOCK]] ], [ -9223372036854775808, %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    [[BC_RESUME_VAL3:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC1:       [[FOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[IV_J:%.*]] = phi i64 [ [[INC3:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[IV_I:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL3]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV_I]]
; CHECK-VF4IC1-NEXT:    [[TMP0:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV_I]]
; CHECK-VF4IC1-NEXT:    [[TMP1:%.*]] = load i64, ptr [[ARRAYIDX1]], align 8
; CHECK-VF4IC1-NEXT:    [[CMP2:%.*]] = icmp sgt i64 [[TMP0]], [[TMP1]]
; CHECK-VF4IC1-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV_J]], i64 [[RDX]]
; CHECK-VF4IC1-NEXT:    [[INC]] = add nuw nsw i64 [[IV_I]], 1
; CHECK-VF4IC1-NEXT:    [[INC3]] = add nsw i64 [[IV_J]], 1
; CHECK-VF4IC1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC1-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP23:![0-9]+]]
; CHECK-VF4IC1:       [[EXIT]]:
; CHECK-VF4IC1-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC1-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF4IC4-LABEL: define i64 @not_vectorized_select_icmp_iv_out_of_bound(
; CHECK-VF4IC4-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC4:       [[VECTOR_PH]]:
; CHECK-VF4IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC4-NEXT:    [[TMP11:%.*]] = add i64 -9223372036854775808, [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC4:       [[VECTOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_IND1:%.*]] = phi <4 x i64> [ <i64 -9223372036854775808, i64 -9223372036854775807, i64 -9223372036854775806, i64 -9223372036854775805>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP17:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI1:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP18:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI2:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP19:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI3:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP20:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI4:%.*]] = phi <4 x i1> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP13:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI5:%.*]] = phi <4 x i1> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP14:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI6:%.*]] = phi <4 x i1> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP15:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI7:%.*]] = phi <4 x i1> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP16:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[STEP_ADD:%.*]] = add nsw <4 x i64> [[VEC_IND1]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_2:%.*]] = add nsw <4 x i64> [[STEP_ADD]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[VEC_IND:%.*]] = add nsw <4 x i64> [[STEP_ADD_2]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP12:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC4-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[TMP12]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP9:%.*]] = getelementptr inbounds i64, ptr [[TMP12]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[TMP12]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP12]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD8:%.*]] = load <4 x i64>, ptr [[TMP5]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD9:%.*]] = load <4 x i64>, ptr [[TMP9]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD10:%.*]] = load <4 x i64>, ptr [[TMP4]], align 8
; CHECK-VF4IC4-NEXT:    [[TMP2:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[INDEX]]
; CHECK-VF4IC4-NEXT:    [[TMP6:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP21:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD1:%.*]] = load <4 x i64>, ptr [[TMP2]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD12:%.*]] = load <4 x i64>, ptr [[TMP6]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD13:%.*]] = load <4 x i64>, ptr [[TMP7]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD14:%.*]] = load <4 x i64>, ptr [[TMP21]], align 8
; CHECK-VF4IC4-NEXT:    [[TMP3:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD]], [[WIDE_LOAD1]]
; CHECK-VF4IC4-NEXT:    [[TMP10:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD8]], [[WIDE_LOAD12]]
; CHECK-VF4IC4-NEXT:    [[TMP24:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD9]], [[WIDE_LOAD13]]
; CHECK-VF4IC4-NEXT:    [[TMP25:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD10]], [[WIDE_LOAD14]]
; CHECK-VF4IC4-NEXT:    [[TMP13]] = or <4 x i1> [[VEC_PHI4]], [[TMP3]]
; CHECK-VF4IC4-NEXT:    [[TMP14]] = or <4 x i1> [[VEC_PHI5]], [[TMP10]]
; CHECK-VF4IC4-NEXT:    [[TMP15]] = or <4 x i1> [[VEC_PHI6]], [[TMP24]]
; CHECK-VF4IC4-NEXT:    [[TMP16]] = or <4 x i1> [[VEC_PHI7]], [[TMP25]]
; CHECK-VF4IC4-NEXT:    [[TMP17]] = select <4 x i1> [[TMP3]], <4 x i64> [[VEC_IND1]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC4-NEXT:    [[TMP18]] = select <4 x i1> [[TMP10]], <4 x i64> [[STEP_ADD]], <4 x i64> [[VEC_PHI1]]
; CHECK-VF4IC4-NEXT:    [[TMP19]] = select <4 x i1> [[TMP24]], <4 x i64> [[STEP_ADD_2]], <4 x i64> [[VEC_PHI2]]
; CHECK-VF4IC4-NEXT:    [[TMP20]] = select <4 x i1> [[TMP25]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI3]]
; CHECK-VF4IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; CHECK-VF4IC4-NEXT:    [[VEC_IND_NEXT]] = add nsw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[TMP8]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP22:![0-9]+]]
; CHECK-VF4IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[TMP17]], <4 x i64> [[TMP18]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX16:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX]], <4 x i64> [[TMP19]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX18:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX16]], <4 x i64> [[TMP20]])
; CHECK-VF4IC4-NEXT:    [[TMP22:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[RDX_MINMAX18]])
; CHECK-VF4IC4-NEXT:    [[BIN_RDX:%.*]] = or <4 x i1> [[TMP14]], [[TMP13]]
; CHECK-VF4IC4-NEXT:    [[BIN_RDX18:%.*]] = or <4 x i1> [[TMP15]], [[BIN_RDX]]
; CHECK-VF4IC4-NEXT:    [[BIN_RDX17:%.*]] = or <4 x i1> [[TMP16]], [[BIN_RDX18]]
; CHECK-VF4IC4-NEXT:    [[TMP23:%.*]] = call i1 @llvm.vector.reduce.or.v4i1(<4 x i1> [[BIN_RDX17]])
; CHECK-VF4IC4-NEXT:    [[TMP26:%.*]] = freeze i1 [[TMP23]]
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[TMP26]], i64 [[TMP22]], i64 [[RDX_START]]
; CHECK-VF4IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC4:       [[SCALAR_PH]]:
; CHECK-VF4IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[TMP11]], %[[MIDDLE_BLOCK]] ], [ -9223372036854775808, %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    [[BC_RESUME_VAL19:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC4:       [[FOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[IV_J:%.*]] = phi i64 [ [[INC3:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[IV_I:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL19]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV_I]]
; CHECK-VF4IC4-NEXT:    [[TMP0:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV_I]]
; CHECK-VF4IC4-NEXT:    [[TMP1:%.*]] = load i64, ptr [[ARRAYIDX1]], align 8
; CHECK-VF4IC4-NEXT:    [[CMP2:%.*]] = icmp sgt i64 [[TMP0]], [[TMP1]]
; CHECK-VF4IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV_J]], i64 [[RDX]]
; CHECK-VF4IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV_I]], 1
; CHECK-VF4IC4-NEXT:    [[INC3]] = add nsw i64 [[IV_J]], 1
; CHECK-VF4IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP23:![0-9]+]]
; CHECK-VF4IC4:       [[EXIT]]:
; CHECK-VF4IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF1IC4-LABEL: define i64 @not_vectorized_select_icmp_iv_out_of_bound(
; CHECK-VF1IC4-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF1IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF1IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF1IC4:       [[VECTOR_PH]]:
; CHECK-VF1IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF1IC4-NEXT:    [[TMP7:%.*]] = add i64 -9223372036854775808, [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF1IC4:       [[FOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[IV_I:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[RDX:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[COND:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI1:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP32:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI2:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP33:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI3:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP34:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI4:%.*]] = phi i1 [ false, %[[VECTOR_PH]] ], [ [[TMP27:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI5:%.*]] = phi i1 [ false, %[[VECTOR_PH]] ], [ [[TMP28:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI6:%.*]] = phi i1 [ false, %[[VECTOR_PH]] ], [ [[TMP29:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI7:%.*]] = phi i1 [ false, %[[VECTOR_PH]] ], [ [[TMP30:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[IV_J:%.*]] = add i64 -9223372036854775808, [[IV_I]]
; CHECK-VF1IC4-NEXT:    [[TMP11:%.*]] = add i64 [[IV_J]], 1
; CHECK-VF1IC4-NEXT:    [[TMP2:%.*]] = add i64 [[IV_J]], 2
; CHECK-VF1IC4-NEXT:    [[TMP3:%.*]] = add i64 [[IV_J]], 3
; CHECK-VF1IC4-NEXT:    [[TMP4:%.*]] = add i64 [[IV_I]], 1
; CHECK-VF1IC4-NEXT:    [[TMP5:%.*]] = add i64 [[IV_I]], 2
; CHECK-VF1IC4-NEXT:    [[TMP6:%.*]] = add i64 [[IV_I]], 3
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV_I]]
; CHECK-VF1IC4-NEXT:    [[TMP8:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP4]]
; CHECK-VF1IC4-NEXT:    [[TMP9:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP5]]
; CHECK-VF1IC4-NEXT:    [[TMP10:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP6]]
; CHECK-VF1IC4-NEXT:    [[TMP0:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP12:%.*]] = load i64, ptr [[TMP8]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP13:%.*]] = load i64, ptr [[TMP9]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP14:%.*]] = load i64, ptr [[TMP10]], align 8
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV_I]]
; CHECK-VF1IC4-NEXT:    [[TMP16:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[TMP4]]
; CHECK-VF1IC4-NEXT:    [[TMP17:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[TMP5]]
; CHECK-VF1IC4-NEXT:    [[TMP18:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[TMP6]]
; CHECK-VF1IC4-NEXT:    [[TMP1:%.*]] = load i64, ptr [[ARRAYIDX1]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP20:%.*]] = load i64, ptr [[TMP16]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP21:%.*]] = load i64, ptr [[TMP17]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP22:%.*]] = load i64, ptr [[TMP18]], align 8
; CHECK-VF1IC4-NEXT:    [[CMP2:%.*]] = icmp sgt i64 [[TMP0]], [[TMP1]]
; CHECK-VF1IC4-NEXT:    [[TMP24:%.*]] = icmp sgt i64 [[TMP12]], [[TMP20]]
; CHECK-VF1IC4-NEXT:    [[TMP25:%.*]] = icmp sgt i64 [[TMP13]], [[TMP21]]
; CHECK-VF1IC4-NEXT:    [[TMP26:%.*]] = icmp sgt i64 [[TMP14]], [[TMP22]]
; CHECK-VF1IC4-NEXT:    [[TMP27]] = or i1 [[VEC_PHI4]], [[CMP2]]
; CHECK-VF1IC4-NEXT:    [[TMP28]] = or i1 [[VEC_PHI5]], [[TMP24]]
; CHECK-VF1IC4-NEXT:    [[TMP29]] = or i1 [[VEC_PHI6]], [[TMP25]]
; CHECK-VF1IC4-NEXT:    [[TMP30]] = or i1 [[VEC_PHI7]], [[TMP26]]
; CHECK-VF1IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV_J]], i64 [[RDX]]
; CHECK-VF1IC4-NEXT:    [[TMP32]] = select i1 [[TMP24]], i64 [[TMP11]], i64 [[VEC_PHI1]]
; CHECK-VF1IC4-NEXT:    [[TMP33]] = select i1 [[TMP25]], i64 [[TMP2]], i64 [[VEC_PHI2]]
; CHECK-VF1IC4-NEXT:    [[TMP34]] = select i1 [[TMP26]], i64 [[TMP3]], i64 [[VEC_PHI3]]
; CHECK-VF1IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[IV_I]], 4
; CHECK-VF1IC4-NEXT:    [[TMP35:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[TMP35]], label %[[MIDDLE_BLOCK:.*]], label %[[FOR_BODY]], !llvm.loop [[LOOP20:![0-9]+]]
; CHECK-VF1IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX:%.*]] = call i64 @llvm.smax.i64(i64 [[COND]], i64 [[TMP32]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX9:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX]], i64 [[TMP33]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX11:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX9]], i64 [[TMP34]])
; CHECK-VF1IC4-NEXT:    [[BIN_RDX:%.*]] = or i1 [[TMP28]], [[TMP27]]
; CHECK-VF1IC4-NEXT:    [[BIN_RDX10:%.*]] = or i1 [[TMP29]], [[BIN_RDX]]
; CHECK-VF1IC4-NEXT:    [[BIN_RDX11:%.*]] = or i1 [[TMP30]], [[BIN_RDX10]]
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = freeze i1 [[BIN_RDX11]]
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[RDX_MINMAX11]], i64 [[RDX_START]]
; CHECK-VF1IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF1IC4:       [[SCALAR_PH]]:
; CHECK-VF1IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[TMP7]], %[[MIDDLE_BLOCK]] ], [ -9223372036854775808, %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    [[BC_RESUME_VAL12:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    br label %[[FOR_BODY1:.*]]
; CHECK-VF1IC4:       [[FOR_BODY1]]:
; CHECK-VF1IC4-NEXT:    [[IV_J1:%.*]] = phi i64 [ [[INC3:%.*]], %[[FOR_BODY1]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[IV_I1:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY1]] ], [ [[BC_RESUME_VAL12]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[RDX1:%.*]] = phi i64 [ [[COND1:%.*]], %[[FOR_BODY1]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV_I1]]
; CHECK-VF1IC4-NEXT:    [[TMP36:%.*]] = load i64, ptr [[ARRAYIDX2]], align 8
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX3:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV_I1]]
; CHECK-VF1IC4-NEXT:    [[TMP37:%.*]] = load i64, ptr [[ARRAYIDX3]], align 8
; CHECK-VF1IC4-NEXT:    [[CMP3:%.*]] = icmp sgt i64 [[TMP36]], [[TMP37]]
; CHECK-VF1IC4-NEXT:    [[COND1]] = select i1 [[CMP3]], i64 [[IV_J1]], i64 [[RDX1]]
; CHECK-VF1IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV_I1]], 1
; CHECK-VF1IC4-NEXT:    [[INC3]] = add nsw i64 [[IV_J1]], 1
; CHECK-VF1IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF1IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY1]], !llvm.loop [[LOOP21:![0-9]+]]
; CHECK-VF1IC4:       [[EXIT]]:
; CHECK-VF1IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND1]], %[[FOR_BODY1]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF1IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
entry:
  br label %for.body

for.body:
  %iv.j = phi i64 [ %inc3, %for.body ], [ -9223372036854775808, %entry]
  %iv.i = phi i64 [ %inc, %for.body ], [ 0, %entry ]
  %rdx = phi i64 [ %cond, %for.body ], [ %rdx.start, %entry ]
  %arrayidx = getelementptr inbounds i64, ptr %a, i64 %iv.i
  %0 = load i64, ptr %arrayidx, align 8
  %arrayidx1 = getelementptr inbounds i64, ptr %b, i64 %iv.i
  %1 = load i64, ptr %arrayidx1, align 8
  %cmp2 = icmp sgt i64 %0, %1
  %cond = select i1 %cmp2, i64 %iv.j, i64 %rdx
  %inc = add nuw nsw i64 %iv.i, 1
  %inc3 = add nsw i64 %iv.j, 1
  %exitcond.not = icmp eq i64 %inc, %n
  br i1 %exitcond.not, label %exit, label %for.body

exit:
  ret i64 %cond
}

define i64 @not_vectorized_select_icmp_non_const_iv_start_value(ptr %a, ptr %b, i64 %ivstart, i64 %rdx.start, i64 %n) {
; CHECK-VF4IC1-LABEL: define i64 @not_vectorized_select_icmp_non_const_iv_start_value(
; CHECK-VF4IC1-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[IVSTART:%.*]], i64 [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC1-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC1-NEXT:    [[TMP12:%.*]] = sub i64 [[N]], [[IVSTART]]
; CHECK-VF4IC1-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP12]], 4
; CHECK-VF4IC1-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC1:       [[VECTOR_PH]]:
; CHECK-VF4IC1-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[TMP12]], 4
; CHECK-VF4IC1-NEXT:    [[N_VEC:%.*]] = sub i64 [[TMP12]], [[N_MOD_VF]]
; CHECK-VF4IC1-NEXT:    [[TMP13:%.*]] = add i64 [[IVSTART]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <4 x i64> poison, i64 [[IVSTART]], i64 0
; CHECK-VF4IC1-NEXT:    [[BROADCAST_SPLAT2:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT1]], <4 x i64> poison, <4 x i32> zeroinitializer
; CHECK-VF4IC1-NEXT:    [[INDUCTION:%.*]] = add nuw nsw <4 x i64> [[BROADCAST_SPLAT2]], <i64 0, i64 1, i64 2, i64 3>
; CHECK-VF4IC1-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC1:       [[VECTOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ [[INDUCTION]], %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP6:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_PHI1:%.*]] = phi <4 x i1> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP5:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[OFFSET_IDX:%.*]] = add i64 [[IVSTART]], [[INDEX]]
; CHECK-VF4IC1-NEXT:    [[TMP2:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[OFFSET_IDX]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP2]], align 8
; CHECK-VF4IC1-NEXT:    [[TMP3:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[OFFSET_IDX]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD3:%.*]] = load <4 x i64>, ptr [[TMP3]], align 8
; CHECK-VF4IC1-NEXT:    [[TMP4:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD]], [[WIDE_LOAD3]]
; CHECK-VF4IC1-NEXT:    [[TMP5]] = or <4 x i1> [[VEC_PHI1]], [[TMP4]]
; CHECK-VF4IC1-NEXT:    [[TMP6]] = select <4 x i1> [[TMP4]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF4IC1-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC1-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[TMP9]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP24:![0-9]+]]
; CHECK-VF4IC1:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC1-NEXT:    [[TMP8:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[TMP6]])
; CHECK-VF4IC1-NEXT:    [[TMP10:%.*]] = call i1 @llvm.vector.reduce.or.v4i1(<4 x i1> [[TMP5]])
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT_CMP:%.*]] = freeze i1 [[TMP10]]
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP8]], i64 [[RDX_START]]
; CHECK-VF4IC1-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TMP12]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC1:       [[SCALAR_PH]]:
; CHECK-VF4IC1-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[TMP13]], %[[MIDDLE_BLOCK]] ], [ [[IVSTART]], %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF4IC1-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC1:       [[FOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC1-NEXT:    [[TMP0:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV]]
; CHECK-VF4IC1-NEXT:    [[TMP1:%.*]] = load i64, ptr [[ARRAYIDX1]], align 8
; CHECK-VF4IC1-NEXT:    [[CMP2:%.*]] = icmp sgt i64 [[TMP0]], [[TMP1]]
; CHECK-VF4IC1-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF4IC1-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF4IC1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC1-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP25:![0-9]+]]
; CHECK-VF4IC1:       [[EXIT]]:
; CHECK-VF4IC1-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC1-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF4IC4-LABEL: define i64 @not_vectorized_select_icmp_non_const_iv_start_value(
; CHECK-VF4IC4-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[IVSTART:%.*]], i64 [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC4-NEXT:    [[TMP12:%.*]] = sub i64 [[N]], [[IVSTART]]
; CHECK-VF4IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP12]], 16
; CHECK-VF4IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC4:       [[VECTOR_PH]]:
; CHECK-VF4IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[TMP12]], 16
; CHECK-VF4IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[TMP12]], [[N_MOD_VF]]
; CHECK-VF4IC4-NEXT:    [[TMP13:%.*]] = add i64 [[IVSTART]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <4 x i64> poison, i64 [[IVSTART]], i64 0
; CHECK-VF4IC4-NEXT:    [[BROADCAST_SPLAT2:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT1]], <4 x i64> poison, <4 x i32> zeroinitializer
; CHECK-VF4IC4-NEXT:    [[INDUCTION:%.*]] = add nuw nsw <4 x i64> [[BROADCAST_SPLAT2]], <i64 0, i64 1, i64 2, i64 3>
; CHECK-VF4IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC4:       [[VECTOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_IND1:%.*]] = phi <4 x i64> [ [[INDUCTION]], %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP18:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI1:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP19:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI2:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP20:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI3:%.*]] = phi <4 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP21:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI4:%.*]] = phi <4 x i1> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP14:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI5:%.*]] = phi <4 x i1> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP15:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI6:%.*]] = phi <4 x i1> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP16:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI7:%.*]] = phi <4 x i1> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP17:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[STEP_ADD:%.*]] = add nuw nsw <4 x i64> [[VEC_IND1]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_2:%.*]] = add nuw nsw <4 x i64> [[STEP_ADD]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[VEC_IND:%.*]] = add nuw nsw <4 x i64> [[STEP_ADD_2]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[OFFSET_IDX:%.*]] = add i64 [[IVSTART]], [[INDEX]]
; CHECK-VF4IC4-NEXT:    [[TMP2:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[OFFSET_IDX]]
; CHECK-VF4IC4-NEXT:    [[TMP6:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP10:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP2]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD8:%.*]] = load <4 x i64>, ptr [[TMP6]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD9:%.*]] = load <4 x i64>, ptr [[TMP10]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD10:%.*]] = load <4 x i64>, ptr [[TMP5]], align 8
; CHECK-VF4IC4-NEXT:    [[TMP3:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[OFFSET_IDX]]
; CHECK-VF4IC4-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i64, ptr [[TMP3]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP8:%.*]] = getelementptr inbounds i64, ptr [[TMP3]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP22:%.*]] = getelementptr inbounds i64, ptr [[TMP3]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD3:%.*]] = load <4 x i64>, ptr [[TMP3]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD12:%.*]] = load <4 x i64>, ptr [[TMP7]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD13:%.*]] = load <4 x i64>, ptr [[TMP8]], align 8
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD14:%.*]] = load <4 x i64>, ptr [[TMP22]], align 8
; CHECK-VF4IC4-NEXT:    [[TMP4:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD]], [[WIDE_LOAD3]]
; CHECK-VF4IC4-NEXT:    [[TMP11:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD8]], [[WIDE_LOAD12]]
; CHECK-VF4IC4-NEXT:    [[TMP25:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD9]], [[WIDE_LOAD13]]
; CHECK-VF4IC4-NEXT:    [[TMP26:%.*]] = icmp sgt <4 x i64> [[WIDE_LOAD10]], [[WIDE_LOAD14]]
; CHECK-VF4IC4-NEXT:    [[TMP14]] = or <4 x i1> [[VEC_PHI4]], [[TMP4]]
; CHECK-VF4IC4-NEXT:    [[TMP15]] = or <4 x i1> [[VEC_PHI5]], [[TMP11]]
; CHECK-VF4IC4-NEXT:    [[TMP16]] = or <4 x i1> [[VEC_PHI6]], [[TMP25]]
; CHECK-VF4IC4-NEXT:    [[TMP17]] = or <4 x i1> [[VEC_PHI7]], [[TMP26]]
; CHECK-VF4IC4-NEXT:    [[TMP18]] = select <4 x i1> [[TMP4]], <4 x i64> [[VEC_IND1]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC4-NEXT:    [[TMP19]] = select <4 x i1> [[TMP11]], <4 x i64> [[STEP_ADD]], <4 x i64> [[VEC_PHI1]]
; CHECK-VF4IC4-NEXT:    [[TMP20]] = select <4 x i1> [[TMP25]], <4 x i64> [[STEP_ADD_2]], <4 x i64> [[VEC_PHI2]]
; CHECK-VF4IC4-NEXT:    [[TMP21]] = select <4 x i1> [[TMP26]], <4 x i64> [[VEC_IND]], <4 x i64> [[VEC_PHI3]]
; CHECK-VF4IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; CHECK-VF4IC4-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[TMP9]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP24:![0-9]+]]
; CHECK-VF4IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[TMP18]], <4 x i64> [[TMP19]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX16:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX]], <4 x i64> [[TMP20]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX18:%.*]] = call <4 x i64> @llvm.smax.v4i64(<4 x i64> [[RDX_MINMAX16]], <4 x i64> [[TMP21]])
; CHECK-VF4IC4-NEXT:    [[TMP23:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[RDX_MINMAX18]])
; CHECK-VF4IC4-NEXT:    [[BIN_RDX:%.*]] = or <4 x i1> [[TMP15]], [[TMP14]]
; CHECK-VF4IC4-NEXT:    [[BIN_RDX18:%.*]] = or <4 x i1> [[TMP16]], [[BIN_RDX]]
; CHECK-VF4IC4-NEXT:    [[BIN_RDX17:%.*]] = or <4 x i1> [[TMP17]], [[BIN_RDX18]]
; CHECK-VF4IC4-NEXT:    [[TMP24:%.*]] = call i1 @llvm.vector.reduce.or.v4i1(<4 x i1> [[BIN_RDX17]])
; CHECK-VF4IC4-NEXT:    [[TMP27:%.*]] = freeze i1 [[TMP24]]
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[TMP27]], i64 [[TMP23]], i64 [[RDX_START]]
; CHECK-VF4IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TMP12]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC4:       [[SCALAR_PH]]:
; CHECK-VF4IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[TMP13]], %[[MIDDLE_BLOCK]] ], [ [[IVSTART]], %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF4IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC4:       [[FOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC4-NEXT:    [[TMP0:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV]]
; CHECK-VF4IC4-NEXT:    [[TMP1:%.*]] = load i64, ptr [[ARRAYIDX1]], align 8
; CHECK-VF4IC4-NEXT:    [[CMP2:%.*]] = icmp sgt i64 [[TMP0]], [[TMP1]]
; CHECK-VF4IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF4IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF4IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP25:![0-9]+]]
; CHECK-VF4IC4:       [[EXIT]]:
; CHECK-VF4IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
; CHECK-VF1IC4-LABEL: define i64 @not_vectorized_select_icmp_non_const_iv_start_value(
; CHECK-VF1IC4-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[IVSTART:%.*]], i64 [[RDX_START:%.*]], i64 [[N:%.*]]) {
; CHECK-VF1IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF1IC4-NEXT:    [[TMP5:%.*]] = sub i64 [[N]], [[IVSTART]]
; CHECK-VF1IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP5]], 4
; CHECK-VF1IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF1IC4:       [[VECTOR_PH]]:
; CHECK-VF1IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[TMP5]], 4
; CHECK-VF1IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[TMP5]], [[N_MOD_VF]]
; CHECK-VF1IC4-NEXT:    [[TMP9:%.*]] = add i64 [[IVSTART]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF1IC4:       [[FOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[RDX:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[COND:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI1:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP30:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI2:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP31:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI3:%.*]] = phi i64 [ -9223372036854775808, %[[VECTOR_PH]] ], [ [[TMP32:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI4:%.*]] = phi i1 [ false, %[[VECTOR_PH]] ], [ [[TMP25:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI5:%.*]] = phi i1 [ false, %[[VECTOR_PH]] ], [ [[TMP26:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI6:%.*]] = phi i1 [ false, %[[VECTOR_PH]] ], [ [[TMP27:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI7:%.*]] = phi i1 [ false, %[[VECTOR_PH]] ], [ [[TMP28:%.*]], %[[FOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[IV:%.*]] = add i64 [[IVSTART]], [[INDEX]]
; CHECK-VF1IC4-NEXT:    [[TMP2:%.*]] = add i64 [[IV]], 1
; CHECK-VF1IC4-NEXT:    [[TMP3:%.*]] = add i64 [[IV]], 2
; CHECK-VF1IC4-NEXT:    [[TMP4:%.*]] = add i64 [[IV]], 3
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-VF1IC4-NEXT:    [[TMP6:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP2]]
; CHECK-VF1IC4-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP3]]
; CHECK-VF1IC4-NEXT:    [[TMP8:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP4]]
; CHECK-VF1IC4-NEXT:    [[TMP0:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP10:%.*]] = load i64, ptr [[TMP6]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP11:%.*]] = load i64, ptr [[TMP7]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP12:%.*]] = load i64, ptr [[TMP8]], align 8
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV]]
; CHECK-VF1IC4-NEXT:    [[TMP14:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[TMP2]]
; CHECK-VF1IC4-NEXT:    [[TMP15:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[TMP3]]
; CHECK-VF1IC4-NEXT:    [[TMP16:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[TMP4]]
; CHECK-VF1IC4-NEXT:    [[TMP1:%.*]] = load i64, ptr [[ARRAYIDX1]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP18:%.*]] = load i64, ptr [[TMP14]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP19:%.*]] = load i64, ptr [[TMP15]], align 8
; CHECK-VF1IC4-NEXT:    [[TMP20:%.*]] = load i64, ptr [[TMP16]], align 8
; CHECK-VF1IC4-NEXT:    [[CMP2:%.*]] = icmp sgt i64 [[TMP0]], [[TMP1]]
; CHECK-VF1IC4-NEXT:    [[TMP22:%.*]] = icmp sgt i64 [[TMP10]], [[TMP18]]
; CHECK-VF1IC4-NEXT:    [[TMP23:%.*]] = icmp sgt i64 [[TMP11]], [[TMP19]]
; CHECK-VF1IC4-NEXT:    [[TMP24:%.*]] = icmp sgt i64 [[TMP12]], [[TMP20]]
; CHECK-VF1IC4-NEXT:    [[TMP25]] = or i1 [[VEC_PHI4]], [[CMP2]]
; CHECK-VF1IC4-NEXT:    [[TMP26]] = or i1 [[VEC_PHI5]], [[TMP22]]
; CHECK-VF1IC4-NEXT:    [[TMP27]] = or i1 [[VEC_PHI6]], [[TMP23]]
; CHECK-VF1IC4-NEXT:    [[TMP28]] = or i1 [[VEC_PHI7]], [[TMP24]]
; CHECK-VF1IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[IV]], i64 [[RDX]]
; CHECK-VF1IC4-NEXT:    [[TMP30]] = select i1 [[TMP22]], i64 [[TMP2]], i64 [[VEC_PHI1]]
; CHECK-VF1IC4-NEXT:    [[TMP31]] = select i1 [[TMP23]], i64 [[TMP3]], i64 [[VEC_PHI2]]
; CHECK-VF1IC4-NEXT:    [[TMP32]] = select i1 [[TMP24]], i64 [[TMP4]], i64 [[VEC_PHI3]]
; CHECK-VF1IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF1IC4-NEXT:    [[TMP33:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[TMP33]], label %[[MIDDLE_BLOCK:.*]], label %[[FOR_BODY]], !llvm.loop [[LOOP22:![0-9]+]]
; CHECK-VF1IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX:%.*]] = call i64 @llvm.smax.i64(i64 [[COND]], i64 [[TMP30]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX9:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX]], i64 [[TMP31]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX11:%.*]] = call i64 @llvm.smax.i64(i64 [[RDX_MINMAX9]], i64 [[TMP32]])
; CHECK-VF1IC4-NEXT:    [[BIN_RDX:%.*]] = or i1 [[TMP26]], [[TMP25]]
; CHECK-VF1IC4-NEXT:    [[BIN_RDX10:%.*]] = or i1 [[TMP27]], [[BIN_RDX]]
; CHECK-VF1IC4-NEXT:    [[BIN_RDX11:%.*]] = or i1 [[TMP28]], [[BIN_RDX10]]
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = freeze i1 [[BIN_RDX11]]
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[RDX_MINMAX11]], i64 [[RDX_START]]
; CHECK-VF1IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TMP5]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF1IC4:       [[SCALAR_PH]]:
; CHECK-VF1IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[TMP9]], %[[MIDDLE_BLOCK]] ], [ [[IVSTART]], %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_START]], %[[ENTRY]] ]
; CHECK-VF1IC4-NEXT:    br label %[[FOR_BODY1:.*]]
; CHECK-VF1IC4:       [[FOR_BODY1]]:
; CHECK-VF1IC4-NEXT:    [[IV1:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY1]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[RDX1:%.*]] = phi i64 [ [[COND1:%.*]], %[[FOR_BODY1]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV1]]
; CHECK-VF1IC4-NEXT:    [[TMP34:%.*]] = load i64, ptr [[ARRAYIDX2]], align 8
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX3:%.*]] = getelementptr inbounds i64, ptr [[B]], i64 [[IV1]]
; CHECK-VF1IC4-NEXT:    [[TMP35:%.*]] = load i64, ptr [[ARRAYIDX3]], align 8
; CHECK-VF1IC4-NEXT:    [[CMP3:%.*]] = icmp sgt i64 [[TMP34]], [[TMP35]]
; CHECK-VF1IC4-NEXT:    [[COND1]] = select i1 [[CMP3]], i64 [[IV1]], i64 [[RDX1]]
; CHECK-VF1IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV1]], 1
; CHECK-VF1IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF1IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY1]], !llvm.loop [[LOOP23:![0-9]+]]
; CHECK-VF1IC4:       [[EXIT]]:
; CHECK-VF1IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND1]], %[[FOR_BODY1]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF1IC4-NEXT:    ret i64 [[COND_LCSSA]]
;
entry:
  br label %for.body

for.body:
  %iv = phi i64 [ %inc, %for.body ], [ %ivstart, %entry ]
  %rdx = phi i64 [ %cond, %for.body ], [ %rdx.start, %entry ]
  %arrayidx = getelementptr inbounds i64, ptr %a, i64 %iv
  %0 = load i64, ptr %arrayidx, align 8
  %arrayidx1 = getelementptr inbounds i64, ptr %b, i64 %iv
  %1 = load i64, ptr %arrayidx1, align 8
  %cmp2 = icmp sgt i64 %0, %1
  %cond = select i1 %cmp2, i64 %iv, i64 %rdx
  %inc = add nuw nsw i64 %iv, 1
  %exitcond.not = icmp eq i64 %inc, %n
  br i1 %exitcond.not, label %exit, label %for.body

exit:
  ret i64 %cond
}

; Test that we can vectorize a loop with a FindLastIV reduction when the IV
; value is transformed via NOT (xor IV, -1). This requires computing the SCEV
; for the NOT operation to enable sentinel-based vectorization.
define i64 @select_icmp_xor_not_iv(ptr %a, i64 %n) {
; CHECK-VF4IC1-LABEL: define i64 @select_icmp_xor_not_iv(
; CHECK-VF4IC1-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC1-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC1-NEXT:    [[CMP_GUARD:%.*]] = icmp sgt i64 [[N]], 0
; CHECK-VF4IC1-NEXT:    br i1 [[CMP_GUARD]], label %[[FOR_BODY_PREHEADER:.*]], label %[[EXIT:.*]]
; CHECK-VF4IC1:       [[FOR_BODY_PREHEADER]]:
; CHECK-VF4IC1-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC1:       [[VECTOR_PH]]:
; CHECK-VF4IC1-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF4IC1-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC1-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC1:       [[VECTOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 9223372036854775807), %[[VECTOR_PH]] ], [ [[TMP3:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC1-NEXT:    [[TMP0:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC1-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i8>, ptr [[TMP0]], align 1
; CHECK-VF4IC1-NEXT:    [[TMP1:%.*]] = icmp eq <4 x i8> [[WIDE_LOAD]], zeroinitializer
; CHECK-VF4IC1-NEXT:    [[TMP2:%.*]] = xor <4 x i64> [[VEC_IND]], splat (i64 -1)
; CHECK-VF4IC1-NEXT:    [[TMP3]] = select <4 x i1> [[TMP1]], <4 x i64> [[TMP2]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF4IC1-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC1-NEXT:    [[TMP4:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[TMP4]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP26:![0-9]+]]
; CHECK-VF4IC1:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC1-NEXT:    [[TMP5:%.*]] = call i64 @llvm.vector.reduce.smin.v4i64(<4 x i64> [[TMP3]])
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP5]], 9223372036854775807
; CHECK-VF4IC1-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP5]], i64 0
; CHECK-VF4IC1-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC1-NEXT:    br i1 [[CMP_N]], label %[[EXIT_LOOPEXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC1:       [[SCALAR_PH]]:
; CHECK-VF4IC1-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[FOR_BODY_PREHEADER]] ]
; CHECK-VF4IC1-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ 0, %[[FOR_BODY_PREHEADER]] ]
; CHECK-VF4IC1-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC1:       [[FOR_BODY]]:
; CHECK-VF4IC1-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC1-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC1-NEXT:    [[TMP6:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-VF4IC1-NEXT:    [[CMP2:%.*]] = icmp eq i8 [[TMP6]], 0
; CHECK-VF4IC1-NEXT:    [[NOT_IV:%.*]] = xor i64 [[IV]], -1
; CHECK-VF4IC1-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[NOT_IV]], i64 [[RDX]]
; CHECK-VF4IC1-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF4IC1-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC1-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT_LOOPEXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP27:![0-9]+]]
; CHECK-VF4IC1:       [[EXIT_LOOPEXIT]]:
; CHECK-VF4IC1-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC1-NEXT:    br label %[[EXIT]]
; CHECK-VF4IC1:       [[EXIT]]:
; CHECK-VF4IC1-NEXT:    [[RESULT:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[COND_LCSSA]], %[[EXIT_LOOPEXIT]] ]
; CHECK-VF4IC1-NEXT:    ret i64 [[RESULT]]
;
; CHECK-VF4IC4-LABEL: define i64 @select_icmp_xor_not_iv(
; CHECK-VF4IC4-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) {
; CHECK-VF4IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF4IC4-NEXT:    [[CMP_GUARD:%.*]] = icmp sgt i64 [[N]], 0
; CHECK-VF4IC4-NEXT:    br i1 [[CMP_GUARD]], label %[[FOR_BODY_PREHEADER:.*]], label %[[EXIT:.*]]
; CHECK-VF4IC4:       [[FOR_BODY_PREHEADER]]:
; CHECK-VF4IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF4IC4:       [[VECTOR_PH]]:
; CHECK-VF4IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 16
; CHECK-VF4IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF4IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF4IC4:       [[VECTOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI:%.*]] = phi <4 x i64> [ splat (i64 9223372036854775807), %[[VECTOR_PH]] ], [ [[TMP12:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI1:%.*]] = phi <4 x i64> [ splat (i64 9223372036854775807), %[[VECTOR_PH]] ], [ [[TMP13:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI2:%.*]] = phi <4 x i64> [ splat (i64 9223372036854775807), %[[VECTOR_PH]] ], [ [[TMP14:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[VEC_PHI3:%.*]] = phi <4 x i64> [ splat (i64 9223372036854775807), %[[VECTOR_PH]] ], [ [[TMP15:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF4IC4-NEXT:    [[STEP_ADD:%.*]] = add nuw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_2:%.*]] = add nuw <4 x i64> [[STEP_ADD]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[STEP_ADD_3:%.*]] = add nuw <4 x i64> [[STEP_ADD_2]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP0:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[INDEX]]
; CHECK-VF4IC4-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i8, ptr [[TMP0]], i64 4
; CHECK-VF4IC4-NEXT:    [[TMP2:%.*]] = getelementptr inbounds i8, ptr [[TMP0]], i64 8
; CHECK-VF4IC4-NEXT:    [[TMP3:%.*]] = getelementptr inbounds i8, ptr [[TMP0]], i64 12
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i8>, ptr [[TMP0]], align 1
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD4:%.*]] = load <4 x i8>, ptr [[TMP1]], align 1
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD5:%.*]] = load <4 x i8>, ptr [[TMP2]], align 1
; CHECK-VF4IC4-NEXT:    [[WIDE_LOAD6:%.*]] = load <4 x i8>, ptr [[TMP3]], align 1
; CHECK-VF4IC4-NEXT:    [[TMP4:%.*]] = icmp eq <4 x i8> [[WIDE_LOAD]], zeroinitializer
; CHECK-VF4IC4-NEXT:    [[TMP5:%.*]] = icmp eq <4 x i8> [[WIDE_LOAD4]], zeroinitializer
; CHECK-VF4IC4-NEXT:    [[TMP6:%.*]] = icmp eq <4 x i8> [[WIDE_LOAD5]], zeroinitializer
; CHECK-VF4IC4-NEXT:    [[TMP7:%.*]] = icmp eq <4 x i8> [[WIDE_LOAD6]], zeroinitializer
; CHECK-VF4IC4-NEXT:    [[TMP8:%.*]] = xor <4 x i64> [[VEC_IND]], splat (i64 -1)
; CHECK-VF4IC4-NEXT:    [[TMP9:%.*]] = xor <4 x i64> [[STEP_ADD]], splat (i64 -1)
; CHECK-VF4IC4-NEXT:    [[TMP10:%.*]] = xor <4 x i64> [[STEP_ADD_2]], splat (i64 -1)
; CHECK-VF4IC4-NEXT:    [[TMP11:%.*]] = xor <4 x i64> [[STEP_ADD_3]], splat (i64 -1)
; CHECK-VF4IC4-NEXT:    [[TMP12]] = select <4 x i1> [[TMP4]], <4 x i64> [[TMP8]], <4 x i64> [[VEC_PHI]]
; CHECK-VF4IC4-NEXT:    [[TMP13]] = select <4 x i1> [[TMP5]], <4 x i64> [[TMP9]], <4 x i64> [[VEC_PHI1]]
; CHECK-VF4IC4-NEXT:    [[TMP14]] = select <4 x i1> [[TMP6]], <4 x i64> [[TMP10]], <4 x i64> [[VEC_PHI2]]
; CHECK-VF4IC4-NEXT:    [[TMP15]] = select <4 x i1> [[TMP7]], <4 x i64> [[TMP11]], <4 x i64> [[VEC_PHI3]]
; CHECK-VF4IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; CHECK-VF4IC4-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[STEP_ADD_3]], splat (i64 4)
; CHECK-VF4IC4-NEXT:    [[TMP16:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[TMP16]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP26:![0-9]+]]
; CHECK-VF4IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX:%.*]] = call <4 x i64> @llvm.smin.v4i64(<4 x i64> [[TMP12]], <4 x i64> [[TMP13]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX7:%.*]] = call <4 x i64> @llvm.smin.v4i64(<4 x i64> [[RDX_MINMAX]], <4 x i64> [[TMP14]])
; CHECK-VF4IC4-NEXT:    [[RDX_MINMAX8:%.*]] = call <4 x i64> @llvm.smin.v4i64(<4 x i64> [[RDX_MINMAX7]], <4 x i64> [[TMP15]])
; CHECK-VF4IC4-NEXT:    [[TMP17:%.*]] = call i64 @llvm.vector.reduce.smin.v4i64(<4 x i64> [[RDX_MINMAX8]])
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP17]], 9223372036854775807
; CHECK-VF4IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP17]], i64 0
; CHECK-VF4IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF4IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT_LOOPEXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF4IC4:       [[SCALAR_PH]]:
; CHECK-VF4IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[FOR_BODY_PREHEADER]] ]
; CHECK-VF4IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ 0, %[[FOR_BODY_PREHEADER]] ]
; CHECK-VF4IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF4IC4:       [[FOR_BODY]]:
; CHECK-VF4IC4-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF4IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
; CHECK-VF4IC4-NEXT:    [[TMP18:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-VF4IC4-NEXT:    [[CMP2:%.*]] = icmp eq i8 [[TMP18]], 0
; CHECK-VF4IC4-NEXT:    [[NOT_IV:%.*]] = xor i64 [[IV]], -1
; CHECK-VF4IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[NOT_IV]], i64 [[RDX]]
; CHECK-VF4IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF4IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF4IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT_LOOPEXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP27:![0-9]+]]
; CHECK-VF4IC4:       [[EXIT_LOOPEXIT]]:
; CHECK-VF4IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF4IC4-NEXT:    br label %[[EXIT]]
; CHECK-VF4IC4:       [[EXIT]]:
; CHECK-VF4IC4-NEXT:    [[RESULT:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[COND_LCSSA]], %[[EXIT_LOOPEXIT]] ]
; CHECK-VF4IC4-NEXT:    ret i64 [[RESULT]]
;
; CHECK-VF1IC4-LABEL: define i64 @select_icmp_xor_not_iv(
; CHECK-VF1IC4-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) {
; CHECK-VF1IC4-NEXT:  [[ENTRY:.*]]:
; CHECK-VF1IC4-NEXT:    [[CMP_GUARD:%.*]] = icmp sgt i64 [[N]], 0
; CHECK-VF1IC4-NEXT:    br i1 [[CMP_GUARD]], label %[[FOR_BODY_PREHEADER:.*]], label %[[EXIT:.*]]
; CHECK-VF1IC4:       [[FOR_BODY_PREHEADER]]:
; CHECK-VF1IC4-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK-VF1IC4:       [[VECTOR_PH]]:
; CHECK-VF1IC4-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-VF1IC4-NEXT:    [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-VF1IC4-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK-VF1IC4:       [[VECTOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI:%.*]] = phi i64 [ 9223372036854775807, %[[VECTOR_PH]] ], [ [[TMP19:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI1:%.*]] = phi i64 [ 9223372036854775807, %[[VECTOR_PH]] ], [ [[TMP20:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI2:%.*]] = phi i64 [ 9223372036854775807, %[[VECTOR_PH]] ], [ [[TMP21:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[VEC_PHI3:%.*]] = phi i64 [ 9223372036854775807, %[[VECTOR_PH]] ], [ [[TMP22:%.*]], %[[VECTOR_BODY]] ]
; CHECK-VF1IC4-NEXT:    [[TMP0:%.*]] = add i64 [[INDEX]], 1
; CHECK-VF1IC4-NEXT:    [[TMP1:%.*]] = add i64 [[INDEX]], 2
; CHECK-VF1IC4-NEXT:    [[TMP2:%.*]] = add i64 [[INDEX]], 3
; CHECK-VF1IC4-NEXT:    [[TMP3:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[INDEX]]
; CHECK-VF1IC4-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP0]]
; CHECK-VF1IC4-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP1]]
; CHECK-VF1IC4-NEXT:    [[TMP6:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP2]]
; CHECK-VF1IC4-NEXT:    [[TMP7:%.*]] = load i8, ptr [[TMP3]], align 1
; CHECK-VF1IC4-NEXT:    [[TMP8:%.*]] = load i8, ptr [[TMP4]], align 1
; CHECK-VF1IC4-NEXT:    [[TMP9:%.*]] = load i8, ptr [[TMP5]], align 1
; CHECK-VF1IC4-NEXT:    [[TMP10:%.*]] = load i8, ptr [[TMP6]], align 1
; CHECK-VF1IC4-NEXT:    [[TMP11:%.*]] = icmp eq i8 [[TMP7]], 0
; CHECK-VF1IC4-NEXT:    [[TMP12:%.*]] = icmp eq i8 [[TMP8]], 0
; CHECK-VF1IC4-NEXT:    [[TMP13:%.*]] = icmp eq i8 [[TMP9]], 0
; CHECK-VF1IC4-NEXT:    [[TMP14:%.*]] = icmp eq i8 [[TMP10]], 0
; CHECK-VF1IC4-NEXT:    [[TMP15:%.*]] = xor i64 [[INDEX]], -1
; CHECK-VF1IC4-NEXT:    [[TMP16:%.*]] = xor i64 [[TMP0]], -1
; CHECK-VF1IC4-NEXT:    [[TMP17:%.*]] = xor i64 [[TMP1]], -1
; CHECK-VF1IC4-NEXT:    [[TMP18:%.*]] = xor i64 [[TMP2]], -1
; CHECK-VF1IC4-NEXT:    [[TMP19]] = select i1 [[TMP11]], i64 [[TMP15]], i64 [[VEC_PHI]]
; CHECK-VF1IC4-NEXT:    [[TMP20]] = select i1 [[TMP12]], i64 [[TMP16]], i64 [[VEC_PHI1]]
; CHECK-VF1IC4-NEXT:    [[TMP21]] = select i1 [[TMP13]], i64 [[TMP17]], i64 [[VEC_PHI2]]
; CHECK-VF1IC4-NEXT:    [[TMP22]] = select i1 [[TMP14]], i64 [[TMP18]], i64 [[VEC_PHI3]]
; CHECK-VF1IC4-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-VF1IC4-NEXT:    [[TMP23:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[TMP23]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP24:![0-9]+]]
; CHECK-VF1IC4:       [[MIDDLE_BLOCK]]:
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX:%.*]] = call i64 @llvm.smin.i64(i64 [[TMP19]], i64 [[TMP20]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX4:%.*]] = call i64 @llvm.smin.i64(i64 [[RDX_MINMAX]], i64 [[TMP21]])
; CHECK-VF1IC4-NEXT:    [[RDX_MINMAX5:%.*]] = call i64 @llvm.smin.i64(i64 [[RDX_MINMAX4]], i64 [[TMP22]])
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[RDX_MINMAX5]], 9223372036854775807
; CHECK-VF1IC4-NEXT:    [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[RDX_MINMAX5]], i64 0
; CHECK-VF1IC4-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-VF1IC4-NEXT:    br i1 [[CMP_N]], label %[[EXIT_LOOPEXIT:.*]], label %[[SCALAR_PH]]
; CHECK-VF1IC4:       [[SCALAR_PH]]:
; CHECK-VF1IC4-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[FOR_BODY_PREHEADER]] ]
; CHECK-VF1IC4-NEXT:    [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ 0, %[[FOR_BODY_PREHEADER]] ]
; CHECK-VF1IC4-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK-VF1IC4:       [[FOR_BODY]]:
; CHECK-VF1IC4-NEXT:    [[IV:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[RDX:%.*]] = phi i64 [ [[COND:%.*]], %[[FOR_BODY]] ], [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ]
; CHECK-VF1IC4-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
; CHECK-VF1IC4-NEXT:    [[TMP24:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-VF1IC4-NEXT:    [[CMP2:%.*]] = icmp eq i8 [[TMP24]], 0
; CHECK-VF1IC4-NEXT:    [[NOT_IV:%.*]] = xor i64 [[IV]], -1
; CHECK-VF1IC4-NEXT:    [[COND]] = select i1 [[CMP2]], i64 [[NOT_IV]], i64 [[RDX]]
; CHECK-VF1IC4-NEXT:    [[INC]] = add nuw nsw i64 [[IV]], 1
; CHECK-VF1IC4-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-VF1IC4-NEXT:    br i1 [[EXITCOND_NOT]], label %[[EXIT_LOOPEXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP25:![0-9]+]]
; CHECK-VF1IC4:       [[EXIT_LOOPEXIT]]:
; CHECK-VF1IC4-NEXT:    [[COND_LCSSA:%.*]] = phi i64 [ [[COND]], %[[FOR_BODY]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ]
; CHECK-VF1IC4-NEXT:    br label %[[EXIT]]
; CHECK-VF1IC4:       [[EXIT]]:
; CHECK-VF1IC4-NEXT:    [[RESULT:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[COND_LCSSA]], %[[EXIT_LOOPEXIT]] ]
; CHECK-VF1IC4-NEXT:    ret i64 [[RESULT]]
;
entry:
  %cmp.guard = icmp sgt i64 %n, 0
  br i1 %cmp.guard, label %for.body.preheader, label %exit

for.body.preheader:
  br label %for.body

for.body:
  %iv = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
  %rdx = phi i64 [ %cond, %for.body ], [ 0, %for.body.preheader ]
  %arrayidx = getelementptr inbounds i8, ptr %a, i64 %iv
  %0 = load i8, ptr %arrayidx, align 1
  %cmp2 = icmp eq i8 %0, 0
  %not.iv = xor i64 %iv, -1
  %cond = select i1 %cmp2, i64 %not.iv, i64 %rdx
  %inc = add nuw nsw i64 %iv, 1
  %exitcond.not = icmp eq i64 %inc, %n
  br i1 %exitcond.not, label %exit.loopexit, label %for.body

exit.loopexit:
  %cond.lcssa = phi i64 [ %cond, %for.body ]
  br label %exit

exit:
  %result = phi i64 [ 0, %entry ], [ %cond.lcssa, %exit.loopexit ]
  ret i64 %result
}