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      1 ; Test vector pack.
      2 ;
      3 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
      4 
      5 ; Test a canonical v16i8 pack.
      6 define <16 x i8> @f1(<16 x i8> %val1, <16 x i8> %val2) {
      7 ; CHECK-LABEL: f1:
      8 ; CHECK: vpkh %v24, %v24, %v26
      9 ; CHECK: br %r14
     10   %ret = shufflevector <16 x i8> %val1, <16 x i8> %val2,
     11                        <16 x i32> <i32 1, i32 3, i32 5, i32 7,
     12                                    i32 9, i32 11, i32 13, i32 15,
     13                                    i32 17, i32 19, i32 21, i32 23,
     14                                    i32 25, i32 27, i32 29, i32 31>
     15   ret <16 x i8> %ret
     16 }
     17 
     18 ; Test a reversed v16i8 pack.
     19 define <16 x i8> @f2(<16 x i8> %val1, <16 x i8> %val2) {
     20 ; CHECK-LABEL: f2:
     21 ; CHECK: vpkh %v24, %v26, %v24
     22 ; CHECK: br %r14
     23   %ret = shufflevector <16 x i8> %val1, <16 x i8> %val2,
     24                        <16 x i32> <i32 17, i32 19, i32 21, i32 23,
     25                                    i32 25, i32 27, i32 29, i32 31,
     26                                    i32 1, i32 3, i32 5, i32 7,
     27                                    i32 9, i32 11, i32 13, i32 15>
     28   ret <16 x i8> %ret
     29 }
     30 
     31 ; Test a v16i8 pack 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: vpkh %v24, %v24, %v24
     35 ; CHECK: br %r14
     36   %ret = shufflevector <16 x i8> %val1, <16 x i8> %val2,
     37                        <16 x i32> <i32 1, i32 3, i32 5, i32 7,
     38                                    i32 9, i32 11, i32 13, i32 15,
     39                                    i32 1, i32 3, i32 5, i32 7,
     40                                    i32 9, i32 11, i32 13, i32 15>
     41   ret <16 x i8> %ret
     42 }
     43 
     44 ; Test a v16i8 pack 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: vpkh %v24, %v26, %v26
     49 ; CHECK: br %r14
     50   %ret = shufflevector <16 x i8> %val1, <16 x i8> %val2,
     51                        <16 x i32> <i32 17, i32 19, i32 21, i32 23,
     52                                    i32 25, i32 27, i32 29, i32 31,
     53                                    i32 17, i32 19, i32 21, i32 23,
     54                                    i32 25, i32 27, i32 29, i32 31>
     55   ret <16 x i8> %ret
     56 }
     57 
     58 ; Test a v16i8 pack 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: vpkh %v24, %v24, %v24
     63 ; CHECK: br %r14
     64   %ret = shufflevector <16 x i8> %val, <16 x i8> %val,
     65                        <16 x i32> <i32 1, i32 3, i32 5, i32 7,
     66                                    i32 9, i32 11, i32 13, i32 15,
     67                                    i32 17, i32 19, i32 21, i32 23,
     68                                    i32 25, i32 27, i32 29, i32 31>
     69   ret <16 x i8> %ret
     70 }
     71 
     72 ; Test a v16i8 pack 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: vpkh %v24, %v24, %v26
     76 ; CHECK: br %r14
     77   %ret = shufflevector <16 x i8> %val1, <16 x i8> %val2,
     78                        <16 x i32> <i32 1, i32 undef, i32 5, i32 7,
     79                                    i32 undef, i32 11, i32 undef, i32 undef,
     80                                    i32 undef, i32 19, i32 21, i32 23,
     81                                    i32 undef, i32 27, i32 29, i32 undef>
     82   ret <16 x i8> %ret
     83 }
     84 
     85 ; Test a v16i8 pack 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: vpkh %v24, %v24, %v24
     91 ; CHECK: br %r14
     92   %ret = shufflevector <16 x i8> undef, <16 x i8> %val,
     93                        <16 x i32> <i32 7, i32 1, i32 9, i32 15,
     94                                    i32 15, i32 3, i32 5, i32 1,
     95                                    i32 17, i32 19, i32 21, i32 23,
     96                                    i32 25, i32 27, i32 29, i32 31>
     97   ret <16 x i8> %ret
     98 }
     99 
    100 ; Test a canonical v8i16 pack.
    101 define <8 x i16> @f8(<8 x i16> %val1, <8 x i16> %val2) {
    102 ; CHECK-LABEL: f8:
    103 ; CHECK: vpkf %v24, %v24, %v26
    104 ; CHECK: br %r14
    105   %ret = shufflevector <8 x i16> %val1, <8 x i16> %val2,
    106                        <8 x i32> <i32 1, i32 3, i32 5, i32 7,
    107                                   i32 9, i32 11, i32 13, i32 15>
    108   ret <8 x i16> %ret
    109 }
    110 
    111 ; Test a reversed v8i16 pack.
    112 define <8 x i16> @f9(<8 x i16> %val1, <8 x i16> %val2) {
    113 ; CHECK-LABEL: f9:
    114 ; CHECK: vpkf %v24, %v26, %v24
    115 ; CHECK: br %r14
    116   %ret = shufflevector <8 x i16> %val1, <8 x i16> %val2,
    117                        <8 x i32> <i32 9, i32 11, i32 13, i32 15,
    118                                   i32 1, i32 3, i32 5, i32 7>
    119   ret <8 x i16> %ret
    120 }
    121 
    122 ; Test a canonical v4i32 pack.
    123 define <4 x i32> @f10(<4 x i32> %val1, <4 x i32> %val2) {
    124 ; CHECK-LABEL: f10:
    125 ; CHECK: vpkg %v24, %v24, %v26
    126 ; CHECK: br %r14
    127   %ret = shufflevector <4 x i32> %val1, <4 x i32> %val2,
    128                        <4 x i32> <i32 1, i32 3, i32 5, i32 7>
    129   ret <4 x i32> %ret
    130 }
    131 
    132 ; Test a reversed v4i32 pack.
    133 define <4 x i32> @f11(<4 x i32> %val1, <4 x i32> %val2) {
    134 ; CHECK-LABEL: f11:
    135 ; CHECK: vpkg %v24, %v26, %v24
    136 ; CHECK: br %r14
    137   %ret = shufflevector <4 x i32> %val1, <4 x i32> %val2,
    138                        <4 x i32> <i32 5, i32 7, i32 1, i32 3>
    139   ret <4 x i32> %ret
    140 }
    141 
    142 ; Test a canonical v4f32 pack.
    143 define <4 x float> @f12(<4 x float> %val1, <4 x float> %val2) {
    144 ; CHECK-LABEL: f12:
    145 ; CHECK: vpkg %v24, %v24, %v26
    146 ; CHECK: br %r14
    147   %ret = shufflevector <4 x float> %val1, <4 x float> %val2,
    148                        <4 x i32> <i32 1, i32 3, i32 5, i32 7>
    149   ret <4 x float> %ret
    150 }
    151 
    152 ; Test a reversed v4f32 pack.
    153 define <4 x float> @f13(<4 x float> %val1, <4 x float> %val2) {
    154 ; CHECK-LABEL: f13:
    155 ; CHECK: vpkg %v24, %v26, %v24
    156 ; CHECK: br %r14
    157   %ret = shufflevector <4 x float> %val1, <4 x float> %val2,
    158                        <4 x i32> <i32 5, i32 7, i32 1, i32 3>
    159   ret <4 x float> %ret
    160 }
    161