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      1 ; Test vector merge high.
      2 ;
      3 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
      4 
      5 ; Test a canonical v16i8 merge high.
      6 define <16 x i8> @f1(<16 x i8> %val1, <16 x i8> %val2) {
      7 ; CHECK-LABEL: f1:
      8 ; CHECK: vmrhb %v24, %v24, %v26
      9 ; CHECK: br %r14
     10   %ret = shufflevector <16 x i8> %val1, <16 x i8> %val2,
     11                        <16 x i32> <i32 0, i32 16, i32 1, i32 17,
     12                                    i32 2, i32 18, i32 3, i32 19,
     13                                    i32 4, i32 20, i32 5, i32 21,
     14                                    i32 6, i32 22, i32 7, i32 23>
     15   ret <16 x i8> %ret
     16 }
     17 
     18 ; Test a reversed v16i8 merge high.
     19 define <16 x i8> @f2(<16 x i8> %val1, <16 x i8> %val2) {
     20 ; CHECK-LABEL: f2:
     21 ; CHECK: vmrhb %v24, %v26, %v24
     22 ; CHECK: br %r14
     23   %ret = shufflevector <16 x i8> %val1, <16 x i8> %val2,
     24                        <16 x i32> <i32 16, i32 0, i32 17, i32 1,
     25                                    i32 18, i32 2, i32 19, i32 3,
     26                                    i32 20, i32 4, i32 21, i32 5,
     27                                    i32 22, i32 6, i32 23, i32 7>
     28   ret <16 x i8> %ret
     29 }
     30 
     31 ; Test a v16i8 merge high with only the first operand being used.
     32 define <16 x i8> @f3(<16 x i8> %val1, <16 x i8> %val2) {
     33 ; CHECK-LABEL: f3:
     34 ; CHECK: vmrhb %v24, %v24, %v24
     35 ; CHECK: br %r14
     36   %ret = shufflevector <16 x i8> %val1, <16 x i8> %val2,
     37                        <16 x i32> <i32 0, i32 0, i32 1, i32 1,
     38                                    i32 2, i32 2, i32 3, i32 3,
     39                                    i32 4, i32 4, i32 5, i32 5,
     40                                    i32 6, i32 6, i32 7, i32 7>
     41   ret <16 x i8> %ret
     42 }
     43 
     44 ; Test a v16i8 merge high with only the second operand being used.
     45 ; This is converted into @f3 by target-independent code.
     46 define <16 x i8> @f4(<16 x i8> %val1, <16 x i8> %val2) {
     47 ; CHECK-LABEL: f4:
     48 ; CHECK: vmrhb %v24, %v26, %v26
     49 ; CHECK: br %r14
     50   %ret = shufflevector <16 x i8> %val1, <16 x i8> %val2,
     51                        <16 x i32> <i32 16, i32 16, i32 17, i32 17,
     52                                    i32 18, i32 18, i32 19, i32 19,
     53                                    i32 20, i32 20, i32 21, i32 21,
     54                                    i32 22, i32 22, i32 23, i32 23>
     55   ret <16 x i8> %ret
     56 }
     57 
     58 ; Test a v16i8 merge with both operands being the same.  This too is
     59 ; converted into @f3 by target-independent code.
     60 define <16 x i8> @f5(<16 x i8> %val) {
     61 ; CHECK-LABEL: f5:
     62 ; CHECK: vmrhb %v24, %v24, %v24
     63 ; CHECK: br %r14
     64   %ret = shufflevector <16 x i8> %val, <16 x i8> %val,
     65                        <16 x i32> <i32 0, i32 16, i32 17, i32 17,
     66                                    i32 18, i32 2, i32 3, i32 3,
     67                                    i32 20, i32 20, i32 5, i32 5,
     68                                    i32 6, i32 22, i32 23, i32 7>
     69   ret <16 x i8> %ret
     70 }
     71 
     72 ; Test a v16i8 merge in which some of the indices are don't care.
     73 define <16 x i8> @f6(<16 x i8> %val1, <16 x i8> %val2) {
     74 ; CHECK-LABEL: f6:
     75 ; CHECK: vmrhb %v24, %v24, %v26
     76 ; CHECK: br %r14
     77   %ret = shufflevector <16 x i8> %val1, <16 x i8> %val2,
     78                        <16 x i32> <i32 0, i32 undef, i32 1, i32 17,
     79                                    i32 undef, i32 18, i32 undef, i32 undef,
     80                                    i32 undef, i32 20, i32 5, i32 21,
     81                                    i32 undef, i32 22, i32 7, i32 undef>
     82   ret <16 x i8> %ret
     83 }
     84 
     85 ; Test a v16i8 merge in which one of the operands is undefined and where
     86 ; indices for that operand are "don't care".  Target-independent code
     87 ; converts the indices themselves into "undef"s.
     88 define <16 x i8> @f7(<16 x i8> %val) {
     89 ; CHECK-LABEL: f7:
     90 ; CHECK: vmrhb %v24, %v24, %v24
     91 ; CHECK: br %r14
     92   %ret = shufflevector <16 x i8> undef, <16 x i8> %val,
     93                        <16 x i32> <i32 11, i32 16, i32 17, i32 5,
     94                                    i32 18, i32 10, i32 19, i32 19,
     95                                    i32 20, i32 20, i32 21, i32 3,
     96                                    i32 2, i32 22, i32 9, i32 23>
     97   ret <16 x i8> %ret
     98 }
     99 
    100 ; Test a canonical v8i16 merge high.
    101 define <8 x i16> @f8(<8 x i16> %val1, <8 x i16> %val2) {
    102 ; CHECK-LABEL: f8:
    103 ; CHECK: vmrhh %v24, %v24, %v26
    104 ; CHECK: br %r14
    105   %ret = shufflevector <8 x i16> %val1, <8 x i16> %val2,
    106                        <8 x i32> <i32 0, i32 8, i32 1, i32 9,
    107                                   i32 2, i32 10, i32 3, i32 11>
    108   ret <8 x i16> %ret
    109 }
    110 
    111 ; Test a reversed v8i16 merge high.
    112 define <8 x i16> @f9(<8 x i16> %val1, <8 x i16> %val2) {
    113 ; CHECK-LABEL: f9:
    114 ; CHECK: vmrhh %v24, %v26, %v24
    115 ; CHECK: br %r14
    116   %ret = shufflevector <8 x i16> %val1, <8 x i16> %val2,
    117                        <8 x i32> <i32 8, i32 0, i32 9, i32 1,
    118                                   i32 10, i32 2, i32 11, i32 3>
    119   ret <8 x i16> %ret
    120 }
    121 
    122 ; Test a canonical v4i32 merge high.
    123 define <4 x i32> @f10(<4 x i32> %val1, <4 x i32> %val2) {
    124 ; CHECK-LABEL: f10:
    125 ; CHECK: vmrhf %v24, %v24, %v26
    126 ; CHECK: br %r14
    127   %ret = shufflevector <4 x i32> %val1, <4 x i32> %val2,
    128                        <4 x i32> <i32 0, i32 4, i32 1, i32 5>
    129   ret <4 x i32> %ret
    130 }
    131 
    132 ; Test a reversed v4i32 merge high.
    133 define <4 x i32> @f11(<4 x i32> %val1, <4 x i32> %val2) {
    134 ; CHECK-LABEL: f11:
    135 ; CHECK: vmrhf %v24, %v26, %v24
    136 ; CHECK: br %r14
    137   %ret = shufflevector <4 x i32> %val1, <4 x i32> %val2,
    138                        <4 x i32> <i32 4, i32 0, i32 5, i32 1>
    139   ret <4 x i32> %ret
    140 }
    141 
    142 ; Test a canonical v2i64 merge high.
    143 define <2 x i64> @f12(<2 x i64> %val1, <2 x i64> %val2) {
    144 ; CHECK-LABEL: f12:
    145 ; CHECK: vmrhg %v24, %v24, %v26
    146 ; CHECK: br %r14
    147   %ret = shufflevector <2 x i64> %val1, <2 x i64> %val2,
    148                        <2 x i32> <i32 0, i32 2>
    149   ret <2 x i64> %ret
    150 }
    151 
    152 ; Test a reversed v2i64 merge high.
    153 define <2 x i64> @f13(<2 x i64> %val1, <2 x i64> %val2) {
    154 ; CHECK-LABEL: f13:
    155 ; CHECK: vmrhg %v24, %v26, %v24
    156 ; CHECK: br %r14
    157   %ret = shufflevector <2 x i64> %val1, <2 x i64> %val2,
    158                        <2 x i32> <i32 2, i32 0>
    159   ret <2 x i64> %ret
    160 }
    161 
    162 ; Test a canonical v4f32 merge high.
    163 define <4 x float> @f14(<4 x float> %val1, <4 x float> %val2) {
    164 ; CHECK-LABEL: f14:
    165 ; CHECK: vmrhf %v24, %v24, %v26
    166 ; CHECK: br %r14
    167   %ret = shufflevector <4 x float> %val1, <4 x float> %val2,
    168                        <4 x i32> <i32 0, i32 4, i32 1, i32 5>
    169   ret <4 x float> %ret
    170 }
    171 
    172 ; Test a reversed v4f32 merge high.
    173 define <4 x float> @f15(<4 x float> %val1, <4 x float> %val2) {
    174 ; CHECK-LABEL: f15:
    175 ; CHECK: vmrhf %v24, %v26, %v24
    176 ; CHECK: br %r14
    177   %ret = shufflevector <4 x float> %val1, <4 x float> %val2,
    178                        <4 x i32> <i32 4, i32 0, i32 5, i32 1>
    179   ret <4 x float> %ret
    180 }
    181 
    182 ; Test a canonical v2f64 merge high.
    183 define <2 x double> @f16(<2 x double> %val1, <2 x double> %val2) {
    184 ; CHECK-LABEL: f16:
    185 ; CHECK: vmrhg %v24, %v24, %v26
    186 ; CHECK: br %r14
    187   %ret = shufflevector <2 x double> %val1, <2 x double> %val2,
    188                        <2 x i32> <i32 0, i32 2>
    189   ret <2 x double> %ret
    190 }
    191 
    192 ; Test a reversed v2f64 merge high.
    193 define <2 x double> @f17(<2 x double> %val1, <2 x double> %val2) {
    194 ; CHECK-LABEL: f17:
    195 ; CHECK: vmrhg %v24, %v26, %v24
    196 ; CHECK: br %r14
    197   %ret = shufflevector <2 x double> %val1, <2 x double> %val2,
    198                        <2 x i32> <i32 2, i32 0>
    199   ret <2 x double> %ret
    200 }
    201