; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals none --version 6
; RUN: opt -passes=loop-vectorize -force-target-supports-masked-memory-ops -force-vector-width=4 -tail-folding-policy=must-fold-tail -S %s | FileCheck %s

target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"

define void @test(ptr %base_a, ptr %base_b, i32 %ntypes) {
; CHECK-LABEL: define void @test(
; CHECK-SAME: ptr [[BASE_A:%.*]], ptr [[BASE_B:%.*]], i32 [[NTYPES:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[NTYPES]], 0
; CHECK-NEXT:    br i1 [[CMP]], label %[[LOOP_PREHEADER:.*]], label %[[EXIT:.*]]
; CHECK:       [[LOOP_PREHEADER]]:
; CHECK-NEXT:    [[N:%.*]] = zext nneg i32 [[NTYPES]] to i64
; CHECK-NEXT:    br label %[[VECTOR_PH:.*]]
; CHECK:       [[VECTOR_PH]]:
; CHECK-NEXT:    [[N_RND_UP:%.*]] = add i64 [[N]], 3
; CHECK-NEXT:    [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], 4
; CHECK-NEXT:    [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
; CHECK-NEXT:    [[TRIP_COUNT_MINUS_1:%.*]] = sub i64 [[N]], 1
; CHECK-NEXT:    [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i64> poison, i64 [[TRIP_COUNT_MINUS_1]], i64 0
; CHECK-NEXT:    [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT]], <4 x i64> poison, <4 x i32> zeroinitializer
; CHECK-NEXT:    [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <4 x i64> poison, i64 [[N]], i64 0
; CHECK-NEXT:    [[BROADCAST_SPLAT2:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT1]], <4 x i64> poison, <4 x i32> zeroinitializer
; CHECK-NEXT:    [[TMP2:%.*]] = mul nuw nsw <4 x i64> <i64 0, i64 1, i64 2, i64 3>, [[BROADCAST_SPLAT2]]
; CHECK-NEXT:    [[TMP1:%.*]] = shl nuw nsw i64 [[N]], 2
; CHECK-NEXT:    [[BROADCAST_SPLATINSERT3:%.*]] = insertelement <4 x i64> poison, i64 [[TMP1]], i64 0
; CHECK-NEXT:    [[BROADCAST_SPLAT4:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT3]], <4 x i64> poison, <4 x i32> zeroinitializer
; CHECK-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK:       [[VECTOR_BODY]]:
; CHECK-NEXT:    [[TMP20:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT:    [[VEC_IND1:%.*]] = phi <4 x i64> [ [[TMP2]], %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT6:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT:    [[TMP0:%.*]] = icmp ule <4 x i64> [[VEC_IND]], [[BROADCAST_SPLAT]]
; CHECK-NEXT:    [[TMP3:%.*]] = getelementptr inbounds [4 x i8], ptr [[BASE_A]], <4 x i64> [[VEC_IND1]]
; CHECK-NEXT:    [[TMP23:%.*]] = getelementptr inbounds [8 x i8], ptr [[BASE_B]], i64 [[TMP20]]
; CHECK-NEXT:    call void @llvm.masked.store.v4p0.p0(<4 x ptr> [[TMP3]], ptr align 8 [[TMP23]], <4 x i1> [[TMP0]])
; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[TMP20]], 4
; CHECK-NEXT:    [[VEC_IND_NEXT]] = add nuw nsw <4 x i64> [[VEC_IND1]], [[BROADCAST_SPLAT4]]
; CHECK-NEXT:    [[VEC_IND_NEXT6]] = add nuw <4 x i64> [[VEC_IND]], splat (i64 4)
; CHECK-NEXT:    [[TMP25:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT:    br i1 [[TMP25]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK:       [[MIDDLE_BLOCK]]:
; CHECK-NEXT:    br label %[[EXIT_LOOPEXIT:.*]]
; CHECK:       [[EXIT_LOOPEXIT]]:
; CHECK-NEXT:    br label %[[EXIT]]
; CHECK:       [[EXIT]]:
; CHECK-NEXT:    ret void
;
entry:
  %cmp = icmp sgt i32 %ntypes, 0
  br i1 %cmp, label %loop.preheader, label %exit

loop.preheader:
  %n = zext nneg i32 %ntypes to i64
  br label %loop

loop:
  %iv = phi i64 [ 0, %loop.preheader ], [ %iv.next, %loop ]
  %offset = phi i64 [ 0, %loop.preheader ], [ %offset.next, %loop ]
  %gep_a = getelementptr inbounds [4 x i8], ptr %base_a, i64 %offset
  %gep_b = getelementptr inbounds [8 x i8], ptr %base_b, i64 %iv
  store ptr %gep_a, ptr %gep_b, align 8
  %offset.next = add nuw nsw i64 %offset, %n
  %iv.next = add nuw nsw i64 %iv, 1
  %exitcond = icmp eq i64 %iv.next, %n
  br i1 %exitcond, label %exit, label %loop

exit:
  ret void
}