third_party/llvm-7.0/llvm/test/CodeGen/SystemZ/vec-perm-05.ll

; Test vector merge low.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s

; Test a canonical v16i8 merge low.
define <16 x i8> @f1(<16 x i8> %val1, <16 x i8> %val2) {
; CHECK-LABEL: f1:
; CHECK: vmrlb %v24, %v24, %v26
; CHECK: br %r14
  %ret = shufflevector <16 x i8> %val1, <16 x i8> %val2,
                       <16 x i32> <i32 8, i32 24, i32 9, i32 25,
                                   i32 10, i32 26, i32 11, i32 27,
                                   i32 12, i32 28, i32 13, i32 29,
                                   i32 14, i32 30, i32 15, i32 31>
  ret <16 x i8> %ret
}

; Test a reversed v16i8 merge low.
define <16 x i8> @f2(<16 x i8> %val1, <16 x i8> %val2) {
; CHECK-LABEL: f2:
; CHECK: vmrlb %v24, %v26, %v24
; CHECK: br %r14
  %ret = shufflevector <16 x i8> %val1, <16 x i8> %val2,
                       <16 x i32> <i32 24, i32 8, i32 25, i32 9,
                                   i32 26, i32 10, i32 27, i32 11,
                                   i32 28, i32 12, i32 29, i32 13,
                                   i32 30, i32 14, i32 31, i32 15>
  ret <16 x i8> %ret
}

; Test a v16i8 merge low with only the first operand being used.
define <16 x i8> @f3(<16 x i8> %val1, <16 x i8> %val2) {
; CHECK-LABEL: f3:
; CHECK: vmrlb %v24, %v24, %v24
; CHECK: br %r14
  %ret = shufflevector <16 x i8> %val1, <16 x i8> %val2,
                       <16 x i32> <i32 8, i32 8, i32 9, i32 9,
                                   i32 10, i32 10, i32 11, i32 11,
                                   i32 12, i32 12, i32 13, i32 13,
                                   i32 14, i32 14, i32 15, i32 15>
  ret <16 x i8> %ret
}

; Test a v16i8 merge low with only the second operand being used.
; This is converted into @f3 by target-independent code.
define <16 x i8> @f4(<16 x i8> %val1, <16 x i8> %val2) {
; CHECK-LABEL: f4:
; CHECK: vmrlb %v24, %v26, %v26
; CHECK: br %r14
  %ret = shufflevector <16 x i8> %val1, <16 x i8> %val2,
                       <16 x i32> <i32 24, i32 24, i32 25, i32 25,
                                   i32 26, i32 26, i32 27, i32 27,
                                   i32 28, i32 28, i32 29, i32 29,
                                   i32 30, i32 30, i32 31, i32 31>
  ret <16 x i8> %ret
}

; Test a v16i8 merge with both operands being the same.  This too is
; converted into @f3 by target-independent code.
define <16 x i8> @f5(<16 x i8> %val) {
; CHECK-LABEL: f5:
; CHECK: vmrlb %v24, %v24, %v24
; CHECK: br %r14
  %ret = shufflevector <16 x i8> %val, <16 x i8> %val,
                       <16 x i32> <i32 8, i32 24, i32 25, i32 25,
                                   i32 26, i32 10, i32 11, i32 11,
                                   i32 28, i32 28, i32 13, i32 13,
                                   i32 14, i32 30, i32 31, i32 15>
  ret <16 x i8> %ret
}

; Test a v16i8 merge in which some of the indices are don't care.
define <16 x i8> @f6(<16 x i8> %val1, <16 x i8> %val2) {
; CHECK-LABEL: f6:
; CHECK: vmrlb %v24, %v24, %v26
; CHECK: br %r14
  %ret = shufflevector <16 x i8> %val1, <16 x i8> %val2,
                       <16 x i32> <i32 8, i32 undef, i32 9, i32 25,
                                   i32 undef, i32 26, i32 undef, i32 undef,
                                   i32 undef, i32 28, i32 13, i32 29,
                                   i32 undef, i32 30, i32 15, i32 undef>
  ret <16 x i8> %ret
}

; Test a v16i8 merge in which one of the operands is undefined and where
; indices for that operand are "don't care".  Target-independent code
; converts the indices themselves into "undef"s.
define <16 x i8> @f7(<16 x i8> %val) {
; CHECK-LABEL: f7:
; CHECK: vmrlb %v24, %v24, %v24
; CHECK: br %r14
  %ret = shufflevector <16 x i8> undef, <16 x i8> %val,
                       <16 x i32> <i32 11, i32 24, i32 25, i32 5,
                                   i32 26, i32 10, i32 27, i32 27,
                                   i32 28, i32 28, i32 29, i32 3,
                                   i32 2, i32 30, i32 9, i32 31>
  ret <16 x i8> %ret
}

; Test a canonical v8i16 merge low.
define <8 x i16> @f8(<8 x i16> %val1, <8 x i16> %val2) {
; CHECK-LABEL: f8:
; CHECK: vmrlh %v24, %v24, %v26
; CHECK: br %r14
  %ret = shufflevector <8 x i16> %val1, <8 x i16> %val2,
                       <8 x i32> <i32 4, i32 12, i32 5, i32 13,
                                  i32 6, i32 14, i32 7, i32 15>
  ret <8 x i16> %ret
}

; Test a reversed v8i16 merge low.
define <8 x i16> @f9(<8 x i16> %val1, <8 x i16> %val2) {
; CHECK-LABEL: f9:
; CHECK: vmrlh %v24, %v26, %v24
; CHECK: br %r14
  %ret = shufflevector <8 x i16> %val1, <8 x i16> %val2,
                       <8 x i32> <i32 12, i32 4, i32 13, i32 5,
                                  i32 14, i32 6, i32 15, i32 7>
  ret <8 x i16> %ret
}

; Test a canonical v4i32 merge low.
define <4 x i32> @f10(<4 x i32> %val1, <4 x i32> %val2) {
; CHECK-LABEL: f10:
; CHECK: vmrlf %v24, %v24, %v26
; CHECK: br %r14
  %ret = shufflevector <4 x i32> %val1, <4 x i32> %val2,
                       <4 x i32> <i32 2, i32 6, i32 3, i32 7>
  ret <4 x i32> %ret
}

; Test a reversed v4i32 merge low.
define <4 x i32> @f11(<4 x i32> %val1, <4 x i32> %val2) {
; CHECK-LABEL: f11:
; CHECK: vmrlf %v24, %v26, %v24
; CHECK: br %r14
  %ret = shufflevector <4 x i32> %val1, <4 x i32> %val2,
                       <4 x i32> <i32 6, i32 2, i32 7, i32 3>
  ret <4 x i32> %ret
}

; Test a canonical v2i64 merge low.
define <2 x i64> @f12(<2 x i64> %val1, <2 x i64> %val2) {
; CHECK-LABEL: f12:
; CHECK: vmrlg %v24, %v24, %v26
; CHECK: br %r14
  %ret = shufflevector <2 x i64> %val1, <2 x i64> %val2,
                       <2 x i32> <i32 1, i32 3>
  ret <2 x i64> %ret
}

; Test a reversed v2i64 merge low.
define <2 x i64> @f13(<2 x i64> %val1, <2 x i64> %val2) {
; CHECK-LABEL: f13:
; CHECK: vmrlg %v24, %v26, %v24
; CHECK: br %r14
  %ret = shufflevector <2 x i64> %val1, <2 x i64> %val2,
                       <2 x i32> <i32 3, i32 1>
  ret <2 x i64> %ret
}

; Test a canonical v4f32 merge low.
define <4 x float> @f14(<4 x float> %val1, <4 x float> %val2) {
; CHECK-LABEL: f14:
; CHECK: vmrlf %v24, %v24, %v26
; CHECK: br %r14
  %ret = shufflevector <4 x float> %val1, <4 x float> %val2,
                       <4 x i32> <i32 2, i32 6, i32 3, i32 7>
  ret <4 x float> %ret
}

; Test a reversed v4f32 merge low.
define <4 x float> @f15(<4 x float> %val1, <4 x float> %val2) {
; CHECK-LABEL: f15:
; CHECK: vmrlf %v24, %v26, %v24
; CHECK: br %r14
  %ret = shufflevector <4 x float> %val1, <4 x float> %val2,
                       <4 x i32> <i32 6, i32 2, i32 7, i32 3>
  ret <4 x float> %ret
}

; Test a canonical v2f64 merge low.
define <2 x double> @f16(<2 x double> %val1, <2 x double> %val2) {
; CHECK-LABEL: f16:
; CHECK: vmrlg %v24, %v24, %v26
; CHECK: br %r14
  %ret = shufflevector <2 x double> %val1, <2 x double> %val2,
                       <2 x i32> <i32 1, i32 3>
  ret <2 x double> %ret
}

; Test a reversed v2f64 merge low.
define <2 x double> @f17(<2 x double> %val1, <2 x double> %val2) {
; CHECK-LABEL: f17:
; CHECK: vmrlg %v24, %v26, %v24
; CHECK: br %r14
  %ret = shufflevector <2 x double> %val1, <2 x double> %val2,
                       <2 x i32> <i32 3, i32 1>
  ret <2 x double> %ret
}