llvm/test/Transforms/SLPVectorizer/AMDGPU/external-shuffle.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -S -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -passes=slp-vectorizer,dce < %s | FileCheck -check-prefixes=GCN %s

; The insertelements in the exit block use the various parts of the vectorized tree. These external uses are just creating an identity vector using a sequence
;  of insert elements. Since these insertelements are just recreating the same vectors that were produced during vectorization, they should not increase the cost of vectorization.

define void @phi_4(ptr addrspace(3) %inptr0, ptr addrspace(3) %inptr1, ptr %out, ptr %out1, ptr %out2, i32 %flag) {
; GCN-LABEL: define void @phi_4(
; GCN-SAME: ptr addrspace(3) [[INPTR0:%.*]], ptr addrspace(3) [[INPTR1:%.*]], ptr [[OUT:%.*]], ptr [[OUT1:%.*]], ptr [[OUT2:%.*]], i32 [[FLAG:%.*]]) #[[ATTR0:[0-9]+]] {
; GCN-NEXT:  [[ENTRY:.*]]:
; GCN-NEXT:    [[TMP0:%.*]] = load <2 x i16>, ptr addrspace(3) [[INPTR0]], align 8
; GCN-NEXT:    [[GEP2:%.*]] = getelementptr i16, ptr addrspace(3) [[INPTR0]], i32 2
; GCN-NEXT:    [[TMP1:%.*]] = load <2 x i16>, ptr addrspace(3) [[GEP2]], align 2
; GCN-NEXT:    [[GEP4:%.*]] = getelementptr i16, ptr addrspace(3) [[INPTR0]], i32 4
; GCN-NEXT:    [[TMP2:%.*]] = load <2 x i16>, ptr addrspace(3) [[GEP4]], align 8
; GCN-NEXT:    [[GEP6:%.*]] = getelementptr i16, ptr addrspace(3) [[INPTR0]], i32 6
; GCN-NEXT:    [[TMP3:%.*]] = load <2 x i16>, ptr addrspace(3) [[GEP6]], align 2
; GCN-NEXT:    [[GEP8:%.*]] = getelementptr i16, ptr addrspace(3) [[INPTR0]], i32 8
; GCN-NEXT:    [[TMP4:%.*]] = load <2 x i16>, ptr addrspace(3) [[GEP8]], align 8
; GCN-NEXT:    [[GEP10:%.*]] = getelementptr i16, ptr addrspace(3) [[INPTR0]], i32 10
; GCN-NEXT:    [[TMP5:%.*]] = load <2 x i16>, ptr addrspace(3) [[GEP10]], align 2
; GCN-NEXT:    [[GEP12:%.*]] = getelementptr i16, ptr addrspace(3) [[INPTR0]], i32 12
; GCN-NEXT:    [[TMP6:%.*]] = load <2 x i16>, ptr addrspace(3) [[GEP12]], align 8
; GCN-NEXT:    [[GEP14:%.*]] = getelementptr i16, ptr addrspace(3) [[INPTR0]], i32 14
; GCN-NEXT:    [[TMP7:%.*]] = load <2 x i16>, ptr addrspace(3) [[GEP14]], align 2
; GCN-NEXT:    br label %[[DO_BODY:.*]]
; GCN:       [[DO_BODY]]:
; GCN-NEXT:    [[TMP8:%.*]] = phi <2 x i16> [ [[TMP0]], %[[ENTRY]] ], [ [[TMP16:%.*]], %[[DO_BODY]] ]
; GCN-NEXT:    [[TMP9:%.*]] = phi <2 x i16> [ [[TMP1]], %[[ENTRY]] ], [ [[TMP17:%.*]], %[[DO_BODY]] ]
; GCN-NEXT:    [[TMP10:%.*]] = phi <2 x i16> [ [[TMP2]], %[[ENTRY]] ], [ [[TMP18:%.*]], %[[DO_BODY]] ]
; GCN-NEXT:    [[TMP11:%.*]] = phi <2 x i16> [ [[TMP3]], %[[ENTRY]] ], [ [[TMP19:%.*]], %[[DO_BODY]] ]
; GCN-NEXT:    [[TMP12:%.*]] = phi <2 x i16> [ [[TMP4]], %[[ENTRY]] ], [ [[TMP20:%.*]], %[[DO_BODY]] ]
; GCN-NEXT:    [[TMP13:%.*]] = phi <2 x i16> [ [[TMP5]], %[[ENTRY]] ], [ [[TMP21:%.*]], %[[DO_BODY]] ]
; GCN-NEXT:    [[TMP14:%.*]] = phi <2 x i16> [ [[TMP6]], %[[ENTRY]] ], [ [[TMP22:%.*]], %[[DO_BODY]] ]
; GCN-NEXT:    [[TMP42:%.*]] = phi <2 x i16> [ [[TMP7]], %[[ENTRY]] ], [ [[TMP23:%.*]], %[[DO_BODY]] ]
; GCN-NEXT:    [[TMP16]] = load <2 x i16>, ptr addrspace(3) [[INPTR0]], align 8
; GCN-NEXT:    [[TMP17]] = load <2 x i16>, ptr addrspace(3) [[GEP2]], align 2
; GCN-NEXT:    [[TMP18]] = load <2 x i16>, ptr addrspace(3) [[GEP4]], align 8
; GCN-NEXT:    [[TMP19]] = load <2 x i16>, ptr addrspace(3) [[GEP6]], align 2
; GCN-NEXT:    [[TMP20]] = load <2 x i16>, ptr addrspace(3) [[GEP8]], align 8
; GCN-NEXT:    [[TMP21]] = load <2 x i16>, ptr addrspace(3) [[GEP10]], align 2
; GCN-NEXT:    [[TMP22]] = load <2 x i16>, ptr addrspace(3) [[GEP12]], align 8
; GCN-NEXT:    [[TMP23]] = load <2 x i16>, ptr addrspace(3) [[GEP14]], align 2
; GCN-NEXT:    [[CMP:%.*]] = icmp eq i32 [[FLAG]], 0
; GCN-NEXT:    br i1 [[CMP]], label %[[EXIT:.*]], label %[[DO_BODY]]
; GCN:       [[EXIT]]:
; GCN-NEXT:    [[TMP24:%.*]] = shufflevector <2 x i16> [[TMP16]], <2 x i16> [[TMP17]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP25:%.*]] = shufflevector <2 x i16> [[TMP18]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP26:%.*]] = shufflevector <16 x i16> [[TMP24]], <16 x i16> [[TMP25]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 16, i32 17, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP27:%.*]] = shufflevector <2 x i16> [[TMP19]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP28:%.*]] = shufflevector <16 x i16> [[TMP26]], <16 x i16> [[TMP27]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 16, i32 17, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP29:%.*]] = shufflevector <2 x i16> [[TMP20]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP30:%.*]] = shufflevector <16 x i16> [[TMP28]], <16 x i16> [[TMP29]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 16, i32 17, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP31:%.*]] = shufflevector <2 x i16> [[TMP21]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP32:%.*]] = shufflevector <16 x i16> [[TMP30]], <16 x i16> [[TMP31]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 16, i32 17, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP33:%.*]] = shufflevector <2 x i16> [[TMP22]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP47:%.*]] = shufflevector <16 x i16> [[TMP32]], <16 x i16> [[TMP33]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 16, i32 17, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP48:%.*]] = shufflevector <2 x i16> [[TMP23]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP49:%.*]] = shufflevector <16 x i16> [[TMP47]], <16 x i16> [[TMP48]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 16, i32 17>
; GCN-NEXT:    [[TMP37:%.*]] = shufflevector <2 x i16> [[TMP0]], <2 x i16> [[TMP1]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP38:%.*]] = shufflevector <2 x i16> [[TMP2]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP39:%.*]] = shufflevector <16 x i16> [[TMP37]], <16 x i16> [[TMP38]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 16, i32 17, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP40:%.*]] = shufflevector <2 x i16> [[TMP3]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP41:%.*]] = shufflevector <16 x i16> [[TMP39]], <16 x i16> [[TMP40]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 16, i32 17, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP57:%.*]] = shufflevector <2 x i16> [[TMP4]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP43:%.*]] = shufflevector <16 x i16> [[TMP41]], <16 x i16> [[TMP57]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 16, i32 17, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP44:%.*]] = shufflevector <2 x i16> [[TMP5]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP45:%.*]] = shufflevector <16 x i16> [[TMP43]], <16 x i16> [[TMP44]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 16, i32 17, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP46:%.*]] = shufflevector <2 x i16> [[TMP6]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP58:%.*]] = shufflevector <16 x i16> [[TMP45]], <16 x i16> [[TMP46]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 16, i32 17, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP60:%.*]] = shufflevector <2 x i16> [[TMP7]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[VEC2157:%.*]] = shufflevector <16 x i16> [[TMP58]], <16 x i16> [[TMP60]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 16, i32 17>
; GCN-NEXT:    [[TMP50:%.*]] = shufflevector <2 x i16> [[TMP8]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[TMP51:%.*]] = shufflevector <2 x i16> [[TMP9]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[VEC231:%.*]] = shufflevector <16 x i16> [[TMP50]], <16 x i16> [[TMP51]], <16 x i32> <i32 0, i32 1, i32 16, i32 17, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
; GCN-NEXT:    [[TMP52:%.*]] = shufflevector <2 x i16> [[TMP10]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[VEC252:%.*]] = shufflevector <16 x i16> [[VEC231]], <16 x i16> [[TMP52]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 16, i32 17, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
; GCN-NEXT:    [[TMP53:%.*]] = shufflevector <2 x i16> [[TMP11]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[VEC273:%.*]] = shufflevector <16 x i16> [[VEC252]], <16 x i16> [[TMP53]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 16, i32 17, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
; GCN-NEXT:    [[TMP54:%.*]] = shufflevector <2 x i16> [[TMP12]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[VEC294:%.*]] = shufflevector <16 x i16> [[VEC273]], <16 x i16> [[TMP54]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 16, i32 17, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
; GCN-NEXT:    [[TMP55:%.*]] = shufflevector <2 x i16> [[TMP13]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[VEC2115:%.*]] = shufflevector <16 x i16> [[VEC294]], <16 x i16> [[TMP55]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 16, i32 17, i32 12, i32 13, i32 14, i32 15>
; GCN-NEXT:    [[TMP56:%.*]] = shufflevector <2 x i16> [[TMP14]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[VEC2136:%.*]] = shufflevector <16 x i16> [[VEC2115]], <16 x i16> [[TMP56]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 16, i32 17, i32 14, i32 15>
; GCN-NEXT:    [[TMP59:%.*]] = shufflevector <2 x i16> [[TMP42]], <2 x i16> poison, <16 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; GCN-NEXT:    [[VEC2151:%.*]] = shufflevector <16 x i16> [[VEC2136]], <16 x i16> [[TMP59]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 16, i32 17>
; GCN-NEXT:    store <16 x i16> [[VEC2157]], ptr [[OUT]], align 32
; GCN-NEXT:    store <16 x i16> [[TMP49]], ptr [[OUT1]], align 32
; GCN-NEXT:    store <16 x i16> [[VEC2151]], ptr [[OUT2]], align 32
; GCN-NEXT:    ret void
;
entry:
  %ele0 = load i16, ptr addrspace(3) %inptr0, align 8
  %gep1 = getelementptr i16, ptr addrspace(3) %inptr0, i32 1
  %ele1 = load i16, ptr addrspace(3) %gep1, align 1
  %gep2 = getelementptr i16, ptr addrspace(3) %inptr0, i32 2
  %ele2 = load i16, ptr addrspace(3) %gep2, align 2
  %gep3 = getelementptr i16, ptr addrspace(3) %inptr0, i32 3
  %ele3 = load i16, ptr addrspace(3) %gep3, align 1
  %gep4 = getelementptr i16, ptr addrspace(3) %inptr0, i32 4
  %ele4 = load i16, ptr addrspace(3) %gep4, align 8
  %gep5 = getelementptr i16, ptr addrspace(3) %inptr0, i32 5
  %ele5 = load i16, ptr addrspace(3) %gep5, align 1
  %gep6 = getelementptr i16, ptr addrspace(3) %inptr0, i32 6
  %ele6 = load i16, ptr addrspace(3) %gep6, align 2
  %gep7 = getelementptr i16, ptr addrspace(3) %inptr0, i32 7
  %ele7 = load i16, ptr addrspace(3) %gep7, align 1
  %gep8 = getelementptr i16, ptr addrspace(3) %inptr0, i32 8
  %ele8 = load i16, ptr addrspace(3) %gep8, align 8
  %gep9 = getelementptr i16, ptr addrspace(3) %inptr0, i32 9
  %ele9 = load i16, ptr addrspace(3) %gep9, align 1
  %gep10 = getelementptr i16, ptr addrspace(3) %inptr0, i32 10
  %ele10 = load i16, ptr addrspace(3) %gep10, align 2
  %gep11 = getelementptr i16, ptr addrspace(3) %inptr0, i32 11
  %ele11 = load i16, ptr addrspace(3) %gep11, align 1
  %gep12 = getelementptr i16, ptr addrspace(3) %inptr0, i32 12
  %ele12 = load i16, ptr addrspace(3) %gep12, align 8
  %gep13 = getelementptr i16, ptr addrspace(3) %inptr0, i32 13
  %ele13 = load i16, ptr addrspace(3) %gep13, align 1
  %gep14 = getelementptr i16, ptr addrspace(3) %inptr0, i32 14
  %ele14 = load i16, ptr addrspace(3) %gep14, align 2
  %gep15 = getelementptr i16, ptr addrspace(3) %inptr0, i32 15
  %ele15 = load i16, ptr addrspace(3) %gep15, align 1
  br label %do.body

do.body:
  %phi0 = phi i16 [ %ele0, %entry ], [ %otherele0, %do.body ]
  %phi1 = phi i16 [ %ele1, %entry ], [ %otherele1, %do.body ]
  %phi2 = phi i16 [ %ele2, %entry ], [ %otherele2, %do.body ]
  %phi3 = phi i16 [ %ele3, %entry ], [ %otherele3, %do.body ]
  %phi4 = phi i16 [ %ele4, %entry ], [ %otherele4, %do.body ]
  %phi5 = phi i16 [ %ele5, %entry ], [ %otherele5, %do.body ]
  %phi6 = phi i16 [ %ele6, %entry ], [ %otherele6, %do.body ]
  %phi7 = phi i16 [ %ele7, %entry ], [ %otherele7, %do.body ]
  %phi8 = phi i16 [ %ele8, %entry ], [ %otherele8, %do.body ]
  %phi9 = phi i16 [ %ele9, %entry ], [ %otherele9, %do.body ]
  %phi10 = phi i16 [ %ele10, %entry ], [ %otherele10, %do.body ]
  %phi11 = phi i16 [ %ele11, %entry ], [ %otherele11, %do.body ]
  %phi12 = phi i16 [ %ele12, %entry ], [ %otherele12, %do.body ]
  %phi13 = phi i16 [ %ele13, %entry ], [ %otherele13, %do.body ]
  %phi14 = phi i16 [ %ele14, %entry ], [ %otherele14, %do.body ]
  %phi15 = phi i16 [ %ele15, %entry ], [ %otherele15, %do.body ]

  %otherele0 = load i16, ptr addrspace(3) %inptr0, align 8
  %otherele1 = load i16, ptr addrspace(3) %gep1, align 1
  %otherele2 = load i16, ptr addrspace(3) %gep2, align 2
  %otherele3 = load i16, ptr addrspace(3) %gep3, align 1
  %otherele4 = load i16, ptr addrspace(3) %gep4, align 8
  %otherele5 = load i16, ptr addrspace(3) %gep5, align 1
  %otherele6 = load i16, ptr addrspace(3) %gep6, align 2
  %otherele7 = load i16, ptr addrspace(3) %gep7, align 1
  %otherele8 = load i16, ptr addrspace(3) %gep8, align 8
  %otherele9 = load i16, ptr addrspace(3) %gep9, align 1
  %otherele10 = load i16, ptr addrspace(3) %gep10, align 2
  %otherele11 = load i16, ptr addrspace(3) %gep11, align 1
  %otherele12 = load i16, ptr addrspace(3) %gep12, align 8
  %otherele13 = load i16, ptr addrspace(3) %gep13, align 1
  %otherele14 = load i16, ptr addrspace(3) %gep14, align 2
  %otherele15 = load i16, ptr addrspace(3) %gep15, align 1
  %cmp = icmp eq i32 %flag, 0
  br i1 %cmp, label %exit, label %do.body

exit:
  %vec00 = insertelement <16 x i16> poison, i16 %otherele0, i64 0
  %vec01 = insertelement <16 x i16> %vec00, i16 %otherele1, i64 1
  %vec02 = insertelement <16 x i16> %vec01, i16 %otherele2, i64 2
  %vec03 = insertelement <16 x i16> %vec02, i16 %otherele3, i64 3
  %vec04 = insertelement <16 x i16> %vec03, i16 %otherele4, i64 4
  %vec05 = insertelement <16 x i16> %vec04, i16 %otherele5, i64 5
  %vec06 = insertelement <16 x i16> %vec05, i16 %otherele6, i64 6
  %vec07 = insertelement <16 x i16> %vec06, i16 %otherele7, i64 7
  %vec08 = insertelement <16 x i16> %vec07, i16 %otherele8, i64 8
  %vec09 = insertelement <16 x i16> %vec08, i16 %otherele9, i64 9
  %vec010 = insertelement <16 x i16> %vec09, i16 %otherele10, i64 10
  %vec011 = insertelement <16 x i16> %vec010, i16 %otherele11, i64 11
  %vec012 = insertelement <16 x i16> %vec011, i16 %otherele12, i64 12
  %vec013 = insertelement <16 x i16> %vec012, i16 %otherele13, i64 13
  %vec014 = insertelement <16 x i16> %vec013, i16 %otherele14, i64 14
  %vec015 = insertelement <16 x i16> %vec014, i16 %otherele15, i64 15

  %vec10 = insertelement <16 x i16> poison, i16 %ele0, i64 0
  %vec11 = insertelement <16 x i16> %vec10, i16 %ele1, i64 1
  %vec12 = insertelement <16 x i16> %vec11, i16 %ele2, i64 2
  %vec13 = insertelement <16 x i16> %vec12, i16 %ele3, i64 3
  %vec14 = insertelement <16 x i16> %vec13, i16 %ele4, i64 4
  %vec15 = insertelement <16 x i16> %vec14, i16 %ele5, i64 5
  %vec16 = insertelement <16 x i16> %vec15, i16 %ele6, i64 6
  %vec17 = insertelement <16 x i16> %vec16, i16 %ele7, i64 7
  %vec18 = insertelement <16 x i16> %vec17, i16 %ele8, i64 8
  %vec19 = insertelement <16 x i16> %vec18, i16 %ele9, i64 9
  %vec110 = insertelement <16 x i16> %vec19, i16 %ele10, i64 10
  %vec111 = insertelement <16 x i16> %vec110, i16 %ele11, i64 11
  %vec112 = insertelement <16 x i16> %vec111, i16 %ele12, i64 12
  %vec113 = insertelement <16 x i16> %vec112, i16 %ele13, i64 13
  %vec114 = insertelement <16 x i16> %vec113, i16 %ele14, i64 14
  %vec115 = insertelement <16 x i16> %vec114, i16 %ele15, i64 15

  %vec20 = insertelement <16 x i16> poison, i16 %phi0, i64 0
  %vec21 = insertelement <16 x i16> %vec20, i16 %phi1, i64 1
  %vec22 = insertelement <16 x i16> %vec21, i16 %phi2, i64 2
  %vec23 = insertelement <16 x i16> %vec22, i16 %phi3, i64 3
  %vec24 = insertelement <16 x i16> %vec23, i16 %phi4, i64 4
  %vec25 = insertelement <16 x i16> %vec24, i16 %phi5, i64 5
  %vec26 = insertelement <16 x i16> %vec25, i16 %phi6, i64 6
  %vec27 = insertelement <16 x i16> %vec26, i16 %phi7, i64 7
  %vec28 = insertelement <16 x i16> %vec27, i16 %phi8, i64 8
  %vec29 = insertelement <16 x i16> %vec28, i16 %phi9, i64 9
  %vec210 = insertelement <16 x i16> %vec29, i16 %phi10, i64 10
  %vec211 = insertelement <16 x i16> %vec210, i16 %phi11, i64 11
  %vec212 = insertelement <16 x i16> %vec211, i16 %phi12, i64 12
  %vec213 = insertelement <16 x i16> %vec212, i16 %phi13, i64 13
  %vec214 = insertelement <16 x i16> %vec213, i16 %phi14, i64 14
  %vec215 = insertelement <16 x i16> %vec214, i16 %phi15, i64 15

  store <16 x i16> %vec115, ptr %out
  store <16 x i16> %vec015, ptr %out1
  store <16 x i16> %vec215, ptr %out2

  ret void
}