test/Transforms/LoopVectorize/nested-loops-scev-expansion.ll

; 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-width=2 -force-vector-interleave=2 -scev-verify-ir -S %s | FileCheck %s

; Make sure SCEV is not queried while the IR is temporarily invalid.

define void @pr49538() {
; CHECK-LABEL: define void @pr49538() {
; CHECK-NEXT:  [[ENTRY:.*]]:
; CHECK-NEXT:    br label %[[LOOP_0:.*]]
; CHECK:       [[LOOP_0]]:
; CHECK-NEXT:    [[IV_0:%.*]] = phi i16 [ -1, %[[ENTRY]] ], [ [[IV_0_NEXT:%.*]], %[[LOOP_0_LATCH:.*]] ]
; CHECK-NEXT:    [[TMP0:%.*]] = zext i16 [[IV_0]] to i32
; CHECK-NEXT:    [[TMP1:%.*]] = add nuw nsw i32 [[TMP0]], 1
; CHECK-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[TMP1]], 4
; CHECK-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK:       [[VECTOR_PH]]:
; CHECK-NEXT:    [[N_MOD_VF:%.*]] = urem i32 [[TMP1]], 4
; CHECK-NEXT:    [[N_VEC:%.*]] = sub i32 [[TMP1]], [[N_MOD_VF]]
; CHECK-NEXT:    [[DOTCAST:%.*]] = trunc i32 [[N_VEC]] to i16
; CHECK-NEXT:    [[TMP2:%.*]] = add i16 -1, [[DOTCAST]]
; CHECK-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK:       [[VECTOR_BODY]]:
; CHECK-NEXT:    [[INDEX:%.*]] = phi i32 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4
; CHECK-NEXT:    [[TMP3:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT:    br i1 [[TMP3]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK:       [[MIDDLE_BLOCK]]:
; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i32 [[TMP1]], [[N_VEC]]
; CHECK-NEXT:    br i1 [[CMP_N]], label %[[LOOP_0_LATCH]], label %[[SCALAR_PH]]
; CHECK:       [[SCALAR_PH]]:
; CHECK-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i16 [ [[TMP2]], %[[MIDDLE_BLOCK]] ], [ -1, %[[LOOP_0]] ]
; CHECK-NEXT:    br label %[[LOOP_1:.*]]
; CHECK:       [[LOOP_1]]:
; CHECK-NEXT:    [[IV_1:%.*]] = phi i16 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_1_NEXT:%.*]], %[[LOOP_1]] ]
; CHECK-NEXT:    [[IV_1_NEXT]] = add nsw i16 [[IV_1]], 1
; CHECK-NEXT:    [[I6:%.*]] = icmp eq i16 [[IV_1_NEXT]], [[IV_0]]
; CHECK-NEXT:    br i1 [[I6]], label %[[LOOP_0_LATCH]], label %[[LOOP_1]], !llvm.loop [[LOOP3:![0-9]+]]
; CHECK:       [[LOOP_0_LATCH]]:
; CHECK-NEXT:    [[I8:%.*]] = phi i16 [ 1, %[[LOOP_1]] ], [ 1, %[[MIDDLE_BLOCK]] ]
; CHECK-NEXT:    [[IV_0_NEXT]] = add nsw i16 [[IV_0]], 1
; CHECK-NEXT:    [[EC_0:%.*]] = icmp eq i16 [[IV_0_NEXT]], [[I8]]
; CHECK-NEXT:    br i1 [[EC_0]], label %[[EXIT:.*]], label %[[LOOP_0]]
; CHECK:       [[EXIT]]:
; CHECK-NEXT:    ret void
;
entry:
  br label %loop.0

loop.0:
  %iv.0 = phi i16 [ -1, %entry ], [ %iv.0.next, %loop.0.latch ]
  br label %loop.1

loop.1:
  %iv.1 = phi i16 [ -1, %loop.0 ], [ %iv.1.next, %loop.1 ]
  %iv.1.next = add nsw i16 %iv.1, 1
  %i6 = icmp eq i16 %iv.1.next, %iv.0
  br i1 %i6, label %loop.0.latch, label %loop.1

loop.0.latch:
  %i8 = phi i16 [ 1, %loop.1 ]
  %iv.0.next = add nsw i16 %iv.0, 1
  %ec.0 = icmp eq i16 %iv.0.next, %i8
  br i1 %ec.0, label %exit, label %loop.0

exit:
  ret void
}

define void @pr49900(i32 %x, ptr %ptr) {
; CHECK-LABEL: define void @pr49900(
; CHECK-SAME: i32 [[X:%.*]], ptr [[PTR:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    br label %[[LOOP_0:.*]]
; CHECK:       [[LOOP_0]]:
; CHECK-NEXT:    [[EC_0:%.*]] = icmp slt i32 [[X]], 0
; CHECK-NEXT:    br i1 [[EC_0]], label %[[LOOP_0]], label %[[LOOP_1_PH:.*]]
; CHECK:       [[LOOP_1_PH]]:
; CHECK-NEXT:    br label %[[LOOP_1:.*]]
; CHECK:       [[LOOP_1]]:
; CHECK-NEXT:    [[IV_1:%.*]] = phi i32 [ 0, %[[LOOP_1_PH]] ], [ [[IV_3_NEXT_LCSSA:%.*]], %[[LOOP_1_LATCH:.*]] ]
; CHECK-NEXT:    [[TMP0:%.*]] = add i32 [[IV_1]], 12
; CHECK-NEXT:    [[SMAX2:%.*]] = call i32 @llvm.smax.i32(i32 [[TMP0]], i32 65537)
; CHECK-NEXT:    [[TMP1:%.*]] = add i32 [[SMAX2]], -12
; CHECK-NEXT:    [[TMP2:%.*]] = sub i32 [[TMP1]], [[IV_1]]
; CHECK-NEXT:    [[UMIN3:%.*]] = call i32 @llvm.umin.i32(i32 [[TMP2]], i32 1)
; CHECK-NEXT:    [[TMP3:%.*]] = add i32 [[UMIN3]], 1
; CHECK-NEXT:    [[TMP4:%.*]] = sub i32 [[TMP2]], [[UMIN3]]
; CHECK-NEXT:    [[TMP5:%.*]] = udiv i32 [[TMP4]], 13
; CHECK-NEXT:    [[TMP6:%.*]] = add i32 [[TMP3]], [[TMP5]]
; CHECK-NEXT:    [[MIN_ITERS_CHECK5:%.*]] = icmp ult i32 [[TMP6]], 4
; CHECK-NEXT:    br i1 [[MIN_ITERS_CHECK5]], label %[[SCALAR_PH4:.*]], label %[[VECTOR_PH6:.*]]
; CHECK:       [[VECTOR_PH6]]:
; CHECK-NEXT:    [[N_MOD_VF7:%.*]] = urem i32 [[TMP6]], 4
; CHECK-NEXT:    [[N_VEC8:%.*]] = sub i32 [[TMP6]], [[N_MOD_VF7]]
; CHECK-NEXT:    [[TMP7:%.*]] = mul i32 [[N_VEC8]], 13
; CHECK-NEXT:    [[TMP8:%.*]] = add i32 [[IV_1]], [[TMP7]]
; CHECK-NEXT:    br label %[[VECTOR_BODY9:.*]]
; CHECK:       [[VECTOR_BODY9]]:
; CHECK-NEXT:    [[INDEX10:%.*]] = phi i32 [ 0, %[[VECTOR_PH6]] ], [ [[INDEX_NEXT11:%.*]], %[[VECTOR_BODY9]] ]
; CHECK-NEXT:    [[INDEX_NEXT11]] = add nuw i32 [[INDEX10]], 4
; CHECK-NEXT:    [[TMP9:%.*]] = icmp eq i32 [[INDEX_NEXT11]], [[N_VEC8]]
; CHECK-NEXT:    br i1 [[TMP9]], label %[[MIDDLE_BLOCK12:.*]], label %[[VECTOR_BODY9]], !llvm.loop [[LOOP4:![0-9]+]]
; CHECK:       [[MIDDLE_BLOCK12]]:
; CHECK-NEXT:    [[CMP_N13:%.*]] = icmp eq i32 [[TMP6]], [[N_VEC8]]
; CHECK-NEXT:    br i1 [[CMP_N13]], label %[[LOOP_3_PH:.*]], label %[[SCALAR_PH4]]
; CHECK:       [[SCALAR_PH4]]:
; CHECK-NEXT:    [[BC_RESUME_VAL14:%.*]] = phi i32 [ [[TMP8]], %[[MIDDLE_BLOCK12]] ], [ [[IV_1]], %[[LOOP_1]] ]
; CHECK-NEXT:    br label %[[LOOP_2:.*]]
; CHECK:       [[LOOP_2]]:
; CHECK-NEXT:    [[IV_2:%.*]] = phi i32 [ [[BC_RESUME_VAL14]], %[[SCALAR_PH4]] ], [ [[IV_2_NEXT:%.*]], %[[LOOP_2]] ]
; CHECK-NEXT:    [[TMP54:%.*]] = add i32 [[IV_2]], 12
; CHECK-NEXT:    [[IV_2_NEXT]] = add i32 [[IV_2]], 13
; CHECK-NEXT:    [[EXT:%.*]] = zext i32 [[IV_2_NEXT]] to i64
; CHECK-NEXT:    [[TMP56:%.*]] = add nuw nsw i64 [[EXT]], 1
; CHECK-NEXT:    [[C6:%.*]] = icmp sle i32 [[TMP54]], 65536
; CHECK-NEXT:    br i1 [[C6]], label %[[LOOP_2]], label %[[LOOP_3_PH]], !llvm.loop [[LOOP5:![0-9]+]]
; CHECK:       [[LOOP_3_PH]]:
; CHECK-NEXT:    [[IV_2_NEXT_LCSSA:%.*]] = phi i32 [ [[IV_2_NEXT]], %[[LOOP_2]] ], [ [[TMP8]], %[[MIDDLE_BLOCK12]] ]
; CHECK-NEXT:    [[TMP10:%.*]] = add i32 [[IV_1]], 26
; CHECK-NEXT:    [[TMP11:%.*]] = add i32 [[IV_1]], 12
; CHECK-NEXT:    [[SMAX:%.*]] = call i32 @llvm.smax.i32(i32 [[TMP11]], i32 65537)
; CHECK-NEXT:    [[TMP12:%.*]] = add i32 [[SMAX]], -12
; CHECK-NEXT:    [[TMP13:%.*]] = sub i32 [[TMP12]], [[IV_1]]
; CHECK-NEXT:    [[UMIN:%.*]] = call i32 @llvm.umin.i32(i32 [[TMP13]], i32 1)
; CHECK-NEXT:    [[TMP14:%.*]] = sub i32 [[TMP13]], [[UMIN]]
; CHECK-NEXT:    [[TMP15:%.*]] = udiv i32 [[TMP14]], 13
; CHECK-NEXT:    [[TMP16:%.*]] = add i32 [[UMIN]], [[TMP15]]
; CHECK-NEXT:    [[TMP17:%.*]] = mul i32 [[TMP16]], 13
; CHECK-NEXT:    [[TMP18:%.*]] = add i32 [[TMP10]], [[TMP17]]
; CHECK-NEXT:    [[UMAX:%.*]] = call i32 @llvm.umax.i32(i32 [[TMP18]], i32 65536)
; CHECK-NEXT:    [[TMP19:%.*]] = add i32 [[UMAX]], -26
; CHECK-NEXT:    [[TMP20:%.*]] = sub i32 [[TMP19]], [[IV_1]]
; CHECK-NEXT:    [[TMP21:%.*]] = sub i32 [[TMP20]], [[TMP17]]
; CHECK-NEXT:    [[UMIN1:%.*]] = call i32 @llvm.umin.i32(i32 [[TMP21]], i32 1)
; CHECK-NEXT:    [[TMP22:%.*]] = add i32 [[UMIN1]], 1
; CHECK-NEXT:    [[TMP23:%.*]] = sub i32 [[TMP20]], [[UMIN1]]
; CHECK-NEXT:    [[TMP24:%.*]] = sub i32 [[TMP23]], [[TMP17]]
; CHECK-NEXT:    [[TMP25:%.*]] = udiv i32 [[TMP24]], 13
; CHECK-NEXT:    [[TMP26:%.*]] = add i32 [[TMP22]], [[TMP25]]
; CHECK-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[TMP26]], 4
; CHECK-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK:       [[VECTOR_PH]]:
; CHECK-NEXT:    [[N_MOD_VF:%.*]] = urem i32 [[TMP26]], 4
; CHECK-NEXT:    [[N_VEC:%.*]] = sub i32 [[TMP26]], [[N_MOD_VF]]
; CHECK-NEXT:    [[TMP27:%.*]] = mul i32 [[N_VEC]], 13
; CHECK-NEXT:    [[TMP28:%.*]] = add i32 [[IV_2_NEXT_LCSSA]], [[TMP27]]
; CHECK-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK:       [[VECTOR_BODY]]:
; CHECK-NEXT:    [[INDEX:%.*]] = phi i32 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4
; CHECK-NEXT:    [[TMP29:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT:    br i1 [[TMP29]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
; CHECK:       [[MIDDLE_BLOCK]]:
; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i32 [[TMP26]], [[N_VEC]]
; CHECK-NEXT:    br i1 [[CMP_N]], label %[[LOOP_1_LATCH]], label %[[SCALAR_PH]]
; CHECK:       [[SCALAR_PH]]:
; CHECK-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i32 [ [[TMP28]], %[[MIDDLE_BLOCK]] ], [ [[IV_2_NEXT_LCSSA]], %[[LOOP_3_PH]] ]
; CHECK-NEXT:    br label %[[LOOP_3:.*]]
; CHECK:       [[LOOP_3]]:
; CHECK-NEXT:    [[IV_3:%.*]] = phi i32 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_3_NEXT:%.*]], %[[LOOP_3]] ]
; CHECK-NEXT:    [[IV_3_NEXT]] = add i32 [[IV_3]], 13
; CHECK-NEXT:    [[C1:%.*]] = icmp ult i32 [[IV_3_NEXT]], 65536
; CHECK-NEXT:    br i1 [[C1]], label %[[LOOP_3]], label %[[LOOP_1_LATCH]], !llvm.loop [[LOOP7:![0-9]+]]
; CHECK:       [[LOOP_1_LATCH]]:
; CHECK-NEXT:    [[IV_3_NEXT_LCSSA]] = phi i32 [ [[IV_3_NEXT]], %[[LOOP_3]] ], [ [[TMP28]], %[[MIDDLE_BLOCK]] ]
; CHECK-NEXT:    [[EC:%.*]] = icmp ne i32 [[IV_1]], 9999
; CHECK-NEXT:    br i1 [[EC]], label %[[LOOP_1]], label %[[EXIT:.*]]
; CHECK:       [[EXIT]]:
; CHECK-NEXT:    ret void
;
entry:
  br label %loop.0

loop.0:                                              ; preds = %bb2, %bb
  %ec.0 = icmp slt i32 %x, 0
  br i1 %ec.0, label %loop.0, label %loop.1.ph

loop.1.ph:                                              ; preds = %bb2
  br label %loop.1

loop.1:                                             ; preds = %bb33, %bb5
  %iv.1 = phi i32 [ 0, %loop.1.ph ], [ %iv.3.next, %loop.1.latch ]
  br label %loop.2

loop.2:
  %iv.2 = phi i32 [ %iv.1, %loop.1 ], [ %iv.2.next, %loop.2 ]
  %tmp54 = add i32 %iv.2, 12
  %iv.2.next = add i32 %iv.2, 13
  %ext = zext i32 %iv.2.next to i64
  %tmp56 = add nuw nsw i64 %ext, 1
  %C6 = icmp sle i32 %tmp54, 65536
  br i1 %C6, label %loop.2, label %loop.3.ph

loop.3.ph:
  br label %loop.3

loop.3:
  %iv.3 = phi i32 [ %iv.2.next, %loop.3.ph ], [ %iv.3.next, %loop.3 ]
  %iv.3.next = add i32 %iv.3 , 13
  %C1 = icmp ult i32 %iv.3.next, 65536
  br i1 %C1, label %loop.3, label %loop.1.latch

loop.1.latch:
  %ec = icmp ne i32 %iv.1, 9999
  br i1 %ec, label %loop.1, label %exit

exit:
  ret void
}

define void @pr52024(ptr %dst, i16 %N) {
; CHECK-LABEL: define void @pr52024(
; CHECK-SAME: ptr [[DST:%.*]], i16 [[N:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*]]:
; CHECK-NEXT:    br label %[[LOOP_1:.*]]
; CHECK:       [[LOOP_1]]:
; CHECK-NEXT:    [[IV_1:%.*]] = phi i16 [ 1, %[[ENTRY]] ], [ [[IV_1_NEXT:%.*]], %[[LOOP_1_LATCH:.*]] ]
; CHECK-NEXT:    [[IV_1_NEXT]] = mul i16 [[IV_1]], 3
; CHECK-NEXT:    [[EXITCOND_1:%.*]] = icmp uge i16 [[IV_1_NEXT]], 99
; CHECK-NEXT:    br i1 [[EXITCOND_1]], label %[[LOOP_1_LATCH]], label %[[EXIT_LOOPEXIT1:.*]]
; CHECK:       [[LOOP_1_LATCH]]:
; CHECK-NEXT:    [[EXITCOND_2:%.*]] = icmp eq i16 [[IV_1_NEXT]], [[N]]
; CHECK-NEXT:    br i1 [[EXITCOND_2]], label %[[LOOP_2_PH:.*]], label %[[LOOP_1]]
; CHECK:       [[LOOP_2_PH]]:
; CHECK-NEXT:    [[IV_1_LCSSA2:%.*]] = phi i16 [ [[IV_1]], %[[LOOP_1_LATCH]] ]
; CHECK-NEXT:    [[IV_1_NEXT_LCSSA:%.*]] = phi i16 [ [[IV_1_NEXT]], %[[LOOP_1_LATCH]] ]
; CHECK-NEXT:    [[IV_1_NEXT_EXT:%.*]] = sext i16 [[IV_1_NEXT_LCSSA]] to i64
; CHECK-NEXT:    [[TMP0:%.*]] = mul i16 [[IV_1_LCSSA2]], 3
; CHECK-NEXT:    br label %[[LOOP_2_HEADER:.*]]
; CHECK:       [[LOOP_2_HEADER]]:
; CHECK-NEXT:    [[IV_1_REM:%.*]] = urem i64 100, [[IV_1_NEXT_EXT]]
; CHECK-NEXT:    [[REM_TRUNC:%.*]] = trunc i64 [[IV_1_REM]] to i16
; CHECK-NEXT:    [[TMP1:%.*]] = udiv i64 100, [[IV_1_NEXT_EXT]]
; CHECK-NEXT:    [[TMP2:%.*]] = trunc i64 [[TMP1]] to i16
; CHECK-NEXT:    [[TMP3:%.*]] = mul i16 [[TMP0]], [[TMP2]]
; CHECK-NEXT:    [[TMP4:%.*]] = add i16 [[TMP3]], -100
; CHECK-NEXT:    br i1 false, label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK:       [[VECTOR_PH]]:
; CHECK-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <2 x i16> poison, i16 [[TMP4]], i64 0
; CHECK-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <2 x i16> [[BROADCAST_SPLATINSERT]], <2 x i16> poison, <2 x i32> zeroinitializer
; CHECK-NEXT:    [[TMP5:%.*]] = mul i16 24, [[TMP4]]
; CHECK-NEXT:    [[TMP6:%.*]] = mul <2 x i16> splat (i16 2), [[BROADCAST_SPLAT]]
; CHECK-NEXT:    [[BROADCAST_SPLATINSERT3:%.*]] = insertelement <2 x i16> poison, i16 [[REM_TRUNC]], i64 0
; CHECK-NEXT:    [[BROADCAST_SPLAT4:%.*]] = shufflevector <2 x i16> [[BROADCAST_SPLATINSERT3]], <2 x i16> poison, <2 x i32> zeroinitializer
; CHECK-NEXT:    [[BROADCAST_SPLATINSERT5:%.*]] = insertelement <2 x i16> poison, i16 [[TMP4]], i64 0
; CHECK-NEXT:    [[BROADCAST_SPLAT6:%.*]] = shufflevector <2 x i16> [[BROADCAST_SPLATINSERT5]], <2 x i16> poison, <2 x i32> zeroinitializer
; CHECK-NEXT:    [[TMP7:%.*]] = mul <2 x i16> <i16 0, i16 1>, [[BROADCAST_SPLAT6]]
; CHECK-NEXT:    [[INDUCTION:%.*]] = add <2 x i16> zeroinitializer, [[TMP7]]
; CHECK-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK:       [[VECTOR_BODY]]:
; CHECK-NEXT:    [[INDEX:%.*]] = phi i32 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT:    [[VEC_IND:%.*]] = phi <2 x i16> [ [[INDUCTION]], %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT:    [[STEP_ADD:%.*]] = add <2 x i16> [[VEC_IND]], [[TMP6]]
; CHECK-NEXT:    [[OFFSET_IDX:%.*]] = add i32 8, [[INDEX]]
; CHECK-NEXT:    [[TMP8:%.*]] = sub <2 x i16> [[VEC_IND]], [[BROADCAST_SPLAT4]]
; CHECK-NEXT:    [[TMP9:%.*]] = sub <2 x i16> [[STEP_ADD]], [[BROADCAST_SPLAT4]]
; CHECK-NEXT:    [[TMP10:%.*]] = zext <2 x i16> [[TMP8]] to <2 x i32>
; CHECK-NEXT:    [[TMP11:%.*]] = zext <2 x i16> [[TMP9]] to <2 x i32>
; CHECK-NEXT:    [[TMP12:%.*]] = getelementptr i32, ptr [[DST]], i32 [[OFFSET_IDX]]
; CHECK-NEXT:    [[TMP13:%.*]] = getelementptr i32, ptr [[TMP12]], i32 2
; CHECK-NEXT:    store <2 x i32> [[TMP10]], ptr [[TMP12]], align 4
; CHECK-NEXT:    store <2 x i32> [[TMP11]], ptr [[TMP13]], align 4
; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4
; CHECK-NEXT:    [[VEC_IND_NEXT]] = add <2 x i16> [[STEP_ADD]], [[TMP6]]
; CHECK-NEXT:    [[TMP14:%.*]] = icmp eq i32 [[INDEX_NEXT]], 24
; CHECK-NEXT:    br i1 [[TMP14]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
; CHECK:       [[MIDDLE_BLOCK]]:
; CHECK-NEXT:    br label %[[SCALAR_PH]]
; CHECK:       [[SCALAR_PH]]:
; CHECK-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i32 [ 32, %[[MIDDLE_BLOCK]] ], [ 8, %[[LOOP_2_HEADER]] ]
; CHECK-NEXT:    [[BC_RESUME_VAL7:%.*]] = phi i16 [ [[TMP5]], %[[MIDDLE_BLOCK]] ], [ 0, %[[LOOP_2_HEADER]] ]
; CHECK-NEXT:    br label %[[LOOP_3:.*]]
; CHECK:       [[LOOP_3]]:
; CHECK-NEXT:    [[IV_3:%.*]] = phi i32 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_3_NEXT:%.*]], %[[LOOP_3]] ]
; CHECK-NEXT:    [[SUB_PHI:%.*]] = phi i16 [ [[BC_RESUME_VAL7]], %[[SCALAR_PH]] ], [ [[SUB:%.*]], %[[LOOP_3]] ]
; CHECK-NEXT:    [[SUB]] = sub i16 [[SUB_PHI]], [[REM_TRUNC]]
; CHECK-NEXT:    [[SUB_EXT:%.*]] = zext i16 [[SUB]] to i32
; CHECK-NEXT:    [[GEP_DST:%.*]] = getelementptr i32, ptr [[DST]], i32 [[IV_3]]
; CHECK-NEXT:    store i32 [[SUB_EXT]], ptr [[GEP_DST]], align 4
; CHECK-NEXT:    [[IV_3_NEXT]] = add nuw nsw i32 [[IV_3]], 1
; CHECK-NEXT:    [[EXITCOND_3:%.*]] = icmp eq i32 [[IV_3_NEXT]], 34
; CHECK-NEXT:    br i1 [[EXITCOND_3]], label %[[LOOP_2_LATCH:.*]], label %[[LOOP_3]], !llvm.loop [[LOOP9:![0-9]+]]
; CHECK:       [[LOOP_2_LATCH]]:
; CHECK-NEXT:    [[SUB_LCSSA:%.*]] = phi i16 [ [[SUB]], %[[LOOP_3]] ]
; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp uge i16 [[SUB_LCSSA]], 200
; CHECK-NEXT:    br i1 [[EXITCOND]], label %[[EXIT_LOOPEXIT:.*]], label %[[LOOP_2_HEADER]]
; CHECK:       [[EXIT_LOOPEXIT]]:
; CHECK-NEXT:    br label %[[EXIT:.*]]
; CHECK:       [[EXIT_LOOPEXIT1]]:
; CHECK-NEXT:    br label %[[EXIT]]
; CHECK:       [[EXIT]]:
; CHECK-NEXT:    ret void
;
entry:
  br label %loop.1

loop.1:
  %iv.1 = phi i16 [ 1, %entry ], [ %iv.1.next, %loop.1.latch ]
  %iv.1.next = mul i16 %iv.1, 3
  %exitcond.1 = icmp uge i16 %iv.1.next, 99
  br i1 %exitcond.1, label %loop.1.latch, label %exit

loop.1.latch:
  %exitcond.2 = icmp eq i16 %iv.1.next, %N
  br i1 %exitcond.2, label %loop.2.ph, label %loop.1

loop.2.ph:
  %iv.1.next.lcssa = phi i16 [ %iv.1.next, %loop.1.latch ]
  %iv.1.next.ext = sext i16 %iv.1.next.lcssa to i64
  br label %loop.2.header

loop.2.header:
  %iv.1.rem = urem i64 100, %iv.1.next.ext
  %rem.trunc = trunc i64 %iv.1.rem to i16
  br label %loop.3

loop.3:
  %iv.3 = phi i32 [ 8, %loop.2.header ], [ %iv.3.next, %loop.3 ]
  %sub.phi = phi i16 [ 0, %loop.2.header ], [ %sub, %loop.3 ]
  %sub = sub i16 %sub.phi, %rem.trunc
  %sub.ext = zext i16 %sub to i32
  %gep.dst = getelementptr i32, ptr %dst, i32 %iv.3
  store i32 %sub.ext, ptr %gep.dst
  %iv.3.next= add nuw nsw i32 %iv.3, 1
  %exitcond.3 = icmp eq i32 %iv.3.next, 34
  br i1 %exitcond.3, label %loop.2.latch, label %loop.3

loop.2.latch:
  %sub.lcssa = phi i16 [ %sub, %loop.3 ]
  %exitcond = icmp uge i16 %sub.lcssa, 200
  br i1 %exitcond, label %exit, label %loop.2.header

exit:
  ret void
}

define void @test_expand_secv_in_entry_before_gep(ptr %dst) {
; CHECK-LABEL: define void @test_expand_secv_in_entry_before_gep(
; CHECK-SAME: ptr [[DST:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*]]:
; CHECK-NEXT:    br label %[[OUTER_HEADER:.*]]
; CHECK:       [[OUTER_HEADER]]:
; CHECK-NEXT:    [[OUTER_IV:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[OUTER_IV_NEXT:%.*]], %[[OUTER_LATCH:.*]] ]
; CHECK-NEXT:    [[TMP0:%.*]] = mul i64 [[OUTER_IV]], -1
; CHECK-NEXT:    [[TMP1:%.*]] = add i64 [[TMP0]], 112
; CHECK-NEXT:    [[GEP_M:%.*]] = getelementptr [36 x [36 x double]], ptr [[DST]], i64 0, i64 [[OUTER_IV]]
; CHECK-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP1]], 4
; CHECK-NEXT:    br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK:       [[VECTOR_PH]]:
; CHECK-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[TMP1]], 4
; CHECK-NEXT:    [[N_VEC:%.*]] = sub i64 [[TMP1]], [[N_MOD_VF]]
; CHECK-NEXT:    [[TMP2:%.*]] = add i64 [[OUTER_IV]], [[N_VEC]]
; CHECK-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK:       [[VECTOR_BODY]]:
; CHECK-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT:    [[OFFSET_IDX:%.*]] = add i64 [[OUTER_IV]], [[INDEX]]
; CHECK-NEXT:    [[TMP3:%.*]] = getelementptr inbounds double, ptr [[GEP_M]], i64 [[OFFSET_IDX]]
; CHECK-NEXT:    [[TMP4:%.*]] = getelementptr inbounds double, ptr [[TMP3]], i32 2
; CHECK-NEXT:    store <2 x double> zeroinitializer, ptr [[TMP3]], align 8
; CHECK-NEXT:    store <2 x double> zeroinitializer, ptr [[TMP4]], align 8
; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-NEXT:    [[TMP5:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT:    br i1 [[TMP5]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
; CHECK:       [[MIDDLE_BLOCK]]:
; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[TMP1]], [[N_VEC]]
; CHECK-NEXT:    br i1 [[CMP_N]], label %[[OUTER_LATCH]], label %[[SCALAR_PH]]
; CHECK:       [[SCALAR_PH]]:
; CHECK-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i64 [ [[TMP2]], %[[MIDDLE_BLOCK]] ], [ [[OUTER_IV]], %[[OUTER_HEADER]] ]
; CHECK-NEXT:    br label %[[INNER:.*]]
; CHECK:       [[INNER]]:
; CHECK-NEXT:    [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[INNER]] ]
; CHECK-NEXT:    [[GEP:%.*]] = getelementptr inbounds double, ptr [[GEP_M]], i64 [[IV]]
; CHECK-NEXT:    store double 0.000000e+00, ptr [[GEP]], align 8
; CHECK-NEXT:    [[IV_NEXT]] = add i64 [[IV]], 1
; CHECK-NEXT:    [[EC:%.*]] = icmp eq i64 [[IV]], 111
; CHECK-NEXT:    br i1 [[EC]], label %[[OUTER_LATCH]], label %[[INNER]], !llvm.loop [[LOOP11:![0-9]+]]
; CHECK:       [[OUTER_LATCH]]:
; CHECK-NEXT:    [[OUTER_IV_NEXT]] = add i64 [[OUTER_IV]], 1
; CHECK-NEXT:    [[C:%.*]] = call i1 @cond()
; CHECK-NEXT:    br i1 [[C]], label %[[OUTER_HEADER]], label %[[EXIT:.*]]
; CHECK:       [[EXIT]]:
; CHECK-NEXT:    ret void
;
entry:
  br label %outer.header

outer.header:
  %outer.iv = phi i64 [ 0, %entry ], [ %outer.iv.next, %outer.latch ]
  %gep.m = getelementptr [36 x [36 x double]], ptr %dst, i64 0, i64 %outer.iv
  br label %inner

inner:
  %iv = phi i64 [ %outer.iv, %outer.header ], [ %iv.next, %inner ]
  %gep = getelementptr inbounds double, ptr %gep.m, i64 %iv
  store double 0.00, ptr %gep, align 8
  %iv.next = add i64 %iv, 1
  %ec = icmp eq i64 %iv, 111
  br i1 %ec, label %outer.latch, label %inner

outer.latch:
  %outer.iv.next = add i64 %outer.iv, 1
  %c = call i1 @cond()
  br i1 %c, label %outer.header, label %exit

exit:
  ret void
}

declare void @cond()