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      1 ; RUN: llc -mtriple=aarch64-none-linux-gnu -mattr=+neon -asm-verbose=false < %s | FileCheck %s
      2 
      3 define float @test_dup_sv2S(<2 x float> %v) #0 {
      4  ; CHECK-LABEL: test_dup_sv2S:
      5  ; CHECK-NEXT: mov s{{[0-9]+}}, {{v[0-9]+}}.s[1]
      6  ; CHECK-NEXT: ret
      7  %tmp1 = extractelement <2 x float> %v, i32 1
      8  ret float  %tmp1
      9 }
     10 
     11 define float @test_dup_sv2S_0(<2 x float> %v) #0 {
     12  ; CHECK-LABEL: test_dup_sv2S_0:
     13  ; CHECK-NOT: dup {{[vsd][0-9]+}}
     14  ; CHECK-NOT: ins {{[vsd][0-9]+}}
     15  ; CHECK-NEXT: ret
     16  %tmp1 = extractelement <2 x float> %v, i32 0
     17  ret float  %tmp1
     18 }
     19 
     20 define float @test_dup_sv4S(<4 x float> %v) #0 {
     21  ; CHECK-LABEL: test_dup_sv4S:
     22  ; CHECK-NEXT: mov s{{[0-9]+}}, {{v[0-9]+}}.s[1]
     23  ; CHECK-NEXT: ret
     24  %tmp1 = extractelement <4 x float> %v, i32 1
     25  ret float  %tmp1
     26 }
     27 
     28 define float @test_dup_sv4S_0(<4 x float> %v) #0 {
     29  ; CHECK-LABEL: test_dup_sv4S_0:
     30  ; CHECK-NOT: dup {{[vsd][0-9]+}}
     31  ; CHECK-NOT: ins {{[vsd][0-9]+}}
     32  ; CHECK-NEXT: ret
     33  %tmp1 = extractelement <4 x float> %v, i32 0
     34  ret float  %tmp1
     35 }
     36 
     37 define double @test_dup_dvD(<1 x double> %v) #0 {
     38  ; CHECK-LABEL: test_dup_dvD:
     39  ; CHECK-NOT: dup {{[vsd][0-9]+}}
     40  ; CHECK-NOT: ins {{[vsd][0-9]+}}
     41  ; CHECK-NEXT: ret
     42  %tmp1 = extractelement <1 x double> %v, i32 0
     43  ret double  %tmp1
     44 }
     45 
     46 define double @test_dup_dv2D(<2 x double> %v) #0 {
     47  ; CHECK-LABEL: test_dup_dv2D:
     48  ; CHECK-NEXT: mov d{{[0-9]+}}, {{v[0-9]+}}.d[1]
     49  ; CHECK-NEXT: ret
     50  %tmp1 = extractelement <2 x double> %v, i32 1
     51  ret double  %tmp1
     52 }
     53 
     54 define double @test_dup_dv2D_0(<2 x double> %v) #0 {
     55  ; CHECK-LABEL: test_dup_dv2D_0:
     56  ; CHECK-NOT: dup {{[vsd][0-9]+}}
     57  ; CHECK-NOT: ins {{[vsd][0-9]+}}
     58  ; CHECK-NEXT: ret
     59  %tmp1 = extractelement <2 x double> %v, i32 0
     60  ret double  %tmp1
     61 }
     62 
     63 define half @test_dup_hv8H(<8 x half> %v) #0 {
     64  ; CHECK-LABEL: test_dup_hv8H:
     65  ; CHECK-NEXT: mov h{{[0-9]+}}, {{v[0-9]+}}.h[1]
     66  ; CHECK-NEXT: ret
     67  %tmp1 = extractelement <8 x half> %v, i32 1
     68  ret half  %tmp1
     69 }
     70 
     71 define half @test_dup_hv8H_0(<8 x half> %v) #0 {
     72  ; CHECK-LABEL: test_dup_hv8H_0:
     73  ; CHECK-NOT: dup {{[vsdh][0-9]+}}
     74  ; CHECK-NOT: ins {{[vsdh][0-9]+}}
     75  ; CHECK-NEXT: ret
     76  %tmp1 = extractelement <8 x half> %v, i32 0
     77  ret half  %tmp1
     78 }
     79 
     80 define <1 x i8> @test_vector_dup_bv16B(<16 x i8> %v1) #0 {
     81  ; CHECK-LABEL: test_vector_dup_bv16B:
     82  ; CHECK-NEXT: umov [[W:w[0-9]+]], v0.b[14]
     83  ; CHECK-NEXT: fmov s0, [[W]]
     84  ; CHECK-NEXT: ret
     85  %shuffle.i = shufflevector <16 x i8> %v1, <16 x i8> undef, <1 x i32> <i32 14> 
     86  ret <1 x i8> %shuffle.i
     87 }
     88 
     89 define <1 x i8> @test_vector_dup_bv8B(<8 x i8> %v1) #0 {
     90  ; CHECK-LABEL: test_vector_dup_bv8B:
     91  ; CHECK-NEXT: dup v0.8b, v0.b[7]
     92  ; CHECK-NEXT: ret
     93  %shuffle.i = shufflevector <8 x i8> %v1, <8 x i8> undef, <1 x i32> <i32 7> 
     94  ret <1 x i8> %shuffle.i
     95 }
     96 
     97 define <1 x i16> @test_vector_dup_hv8H(<8 x i16> %v1) #0 {
     98  ; CHECK-LABEL: test_vector_dup_hv8H:
     99  ; CHECK-NEXT: umov [[W:w[0-9]+]], v0.h[7]
    100  ; CHECK-NEXT: fmov s0, [[W]]
    101  ; CHECK-NEXT: ret
    102  %shuffle.i = shufflevector <8 x i16> %v1, <8 x i16> undef, <1 x i32> <i32 7> 
    103  ret <1 x i16> %shuffle.i
    104 }
    105 
    106 define <1 x i16> @test_vector_dup_hv4H(<4 x i16> %v1) #0 {
    107  ; CHECK-LABEL: test_vector_dup_hv4H:
    108  ; CHECK-NEXT: dup v0.4h, v0.h[3]
    109  ; CHECK-NEXT: ret
    110  %shuffle.i = shufflevector <4 x i16> %v1, <4 x i16> undef, <1 x i32> <i32 3> 
    111  ret <1 x i16> %shuffle.i
    112 }
    113 
    114 define <1 x i32> @test_vector_dup_sv4S(<4 x i32> %v1) #0 {
    115  ; CHECK-LABEL: test_vector_dup_sv4S:
    116  ; CHECK-NEXT: mov  [[W:w[0-9]+]], v0.s[3]
    117  ; CHECK-NEXT: fmov s0, [[W]]
    118  ; CHECK-NEXT: ret
    119  %shuffle = shufflevector <4 x i32> %v1, <4 x i32> undef, <1 x i32> <i32 3> 
    120  ret <1 x i32> %shuffle
    121 }
    122 
    123 define <1 x i32> @test_vector_dup_sv2S(<2 x i32> %v1) #0 {
    124  ; CHECK-LABEL: test_vector_dup_sv2S:
    125  ; CHECK-NEXT: dup v0.2s, v0.s[1]
    126  ; CHECK-NEXT: ret
    127  %shuffle = shufflevector <2 x i32> %v1, <2 x i32> undef, <1 x i32> <i32 1> 
    128  ret <1 x i32> %shuffle
    129 }
    130 
    131 define <1 x i64> @test_vector_dup_dv2D(<2 x i64> %v1) #0 {
    132  ; CHECK-LABEL: test_vector_dup_dv2D:
    133  ; CHECK-NEXT: ext {{v[0-9]+}}.16b, {{v[0-9]+}}.16b, {{v[0-9]+}}.16b, #8
    134  ; CHECK-NEXT: ret
    135  %shuffle.i = shufflevector <2 x i64> %v1, <2 x i64> undef, <1 x i32> <i32 1> 
    136  ret <1 x i64> %shuffle.i
    137 }
    138 
    139 define <1 x i64> @test_vector_copy_dup_dv2D(<1 x i64> %a, <2 x i64> %c) #0 {
    140   ; CHECK-LABEL: test_vector_copy_dup_dv2D:
    141   ; CHECK-NEXT: {{dup|mov}} {{d[0-9]+}}, {{v[0-9]+}}.d[1]
    142   ; CHECK-NEXT: ret
    143   %vget_lane = extractelement <2 x i64> %c, i32 1
    144   %vset_lane = insertelement <1 x i64> undef, i64 %vget_lane, i32 0
    145   ret <1 x i64> %vset_lane
    146 }
    147 
    148 ; Undefined behaviour, so we really don't care what actually gets emitted, just
    149 ; as long as we don't crash (since it could be dynamically unreachable).
    150 define i32 @test_out_of_range_extract(<4 x i32> %vec) {
    151 ; CHECK-LABEL: test_out_of_range_extract:
    152 ; CHECK: ret
    153   %elt = extractelement <4 x i32> %vec, i32 4
    154   ret i32 %elt
    155 }
    156 
    157 ; Undefined behaviour, so we really don't care what actually gets emitted, just
    158 ; as long as we don't crash (since it could be dynamically unreachable).
    159 define void @test_out_of_range_insert(<4 x i32> %vec, i32 %elt) {
    160 ; CHECK-LABEL: test_out_of_range_insert:
    161 ; CHECK: ret
    162   insertelement <4 x i32> %vec, i32 %elt, i32 4
    163   ret void
    164 }
    165 
    166 attributes #0 = { nounwind }
    167