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llvm/llvm/test/CodeGen/AArch64/concat-vector.ll 

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=aarch64 %s -o - | FileCheck %s --check-prefixes=CHECK,CHECK-SD
; RUN: llc -mtriple=aarch64 -global-isel -global-isel-abort=2 %s -o - 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK-GI

define <4 x i8> @concat1(<2 x i8> %A, <2 x i8> %B) {
; CHECK-SD-LABEL: concat1:
; CHECK-SD:       // %bb.0:
; CHECK-SD-NEXT:    uzp1 v0.4h, v0.4h, v1.4h
; CHECK-SD-NEXT:    ret
;
; CHECK-GI-LABEL: concat1:
; CHECK-GI:       // %bb.0:
; CHECK-GI-NEXT:    // kill: def $d0 killed $d0 def $q0
; CHECK-GI-NEXT:    mov w8, v0.s[1]
; CHECK-GI-NEXT:    // kill: def $d1 killed $d1 def $q1
; CHECK-GI-NEXT:    mov w9, v1.s[1]
; CHECK-GI-NEXT:    mov v0.b[1], w8
; CHECK-GI-NEXT:    fmov w8, s1
; CHECK-GI-NEXT:    mov v0.b[2], w8
; CHECK-GI-NEXT:    mov v0.b[3], w9
; CHECK-GI-NEXT:    ushll v0.8h, v0.8b, #0
; CHECK-GI-NEXT:    // kill: def $d0 killed $d0 killed $q0
; CHECK-GI-NEXT:    ret
   %v4i8 = shufflevector <2 x i8> %A, <2 x i8> %B, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
   ret <4 x i8> %v4i8
}

define <8 x i8> @concat2(<4 x i8> %A, <4 x i8> %B) {
; CHECK-SD-LABEL: concat2:
; CHECK-SD:       // %bb.0:
; CHECK-SD-NEXT:    uzp1 v0.8b, v0.8b, v1.8b
; CHECK-SD-NEXT:    ret
;
; CHECK-GI-LABEL: concat2:
; CHECK-GI:       // %bb.0:
; CHECK-GI-NEXT:    // kill: def $d0 killed $d0 def $q0
; CHECK-GI-NEXT:    mov v2.h[0], v0.h[0]
; CHECK-GI-NEXT:    // kill: def $d1 killed $d1 def $q1
; CHECK-GI-NEXT:    mov v3.h[0], v1.h[0]
; CHECK-GI-NEXT:    mov v2.h[1], v0.h[1]
; CHECK-GI-NEXT:    mov v3.h[1], v1.h[1]
; CHECK-GI-NEXT:    mov v2.h[2], v0.h[2]
; CHECK-GI-NEXT:    mov v3.h[2], v1.h[2]
; CHECK-GI-NEXT:    mov v2.h[3], v0.h[3]
; CHECK-GI-NEXT:    mov v3.h[3], v1.h[3]
; CHECK-GI-NEXT:    xtn v0.8b, v2.8h
; CHECK-GI-NEXT:    xtn v1.8b, v3.8h
; CHECK-GI-NEXT:    fmov w8, s0
; CHECK-GI-NEXT:    mov v0.s[0], w8
; CHECK-GI-NEXT:    fmov w8, s1
; CHECK-GI-NEXT:    mov v0.s[1], w8
; CHECK-GI-NEXT:    // kill: def $d0 killed $d0 killed $q0
; CHECK-GI-NEXT:    ret
   %v8i8 = shufflevector <4 x i8> %A, <4 x i8> %B, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
   ret <8 x i8> %v8i8
}

define <16 x i8> @concat3(<8 x i8> %A, <8 x i8> %B) {
; CHECK-LABEL: concat3:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $d0 killed $d0 def $q0
; CHECK-NEXT:    // kill: def $d1 killed $d1 def $q1
; CHECK-NEXT:    mov v0.d[1], v1.d[0]
; CHECK-NEXT:    ret
   %v16i8 = shufflevector <8 x i8> %A, <8 x i8> %B, <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 14, i32 15>
   ret <16 x i8> %v16i8
}

define <4 x i16> @concat4(<2 x i16> %A, <2 x i16> %B) {
; CHECK-SD-LABEL: concat4:
; CHECK-SD:       // %bb.0:
; CHECK-SD-NEXT:    uzp1 v0.4h, v0.4h, v1.4h
; CHECK-SD-NEXT:    ret
;
; CHECK-GI-LABEL: concat4:
; CHECK-GI:       // %bb.0:
; CHECK-GI-NEXT:    // kill: def $d0 killed $d0 def $q0
; CHECK-GI-NEXT:    mov v2.s[0], v0.s[0]
; CHECK-GI-NEXT:    // kill: def $d1 killed $d1 def $q1
; CHECK-GI-NEXT:    mov v2.s[1], v0.s[1]
; CHECK-GI-NEXT:    mov v0.s[0], v1.s[0]
; CHECK-GI-NEXT:    xtn v2.4h, v2.4s
; CHECK-GI-NEXT:    mov v0.s[1], v1.s[1]
; CHECK-GI-NEXT:    xtn v1.4h, v0.4s
; CHECK-GI-NEXT:    fmov w8, s2
; CHECK-GI-NEXT:    mov v0.s[0], w8
; CHECK-GI-NEXT:    fmov w8, s1
; CHECK-GI-NEXT:    mov v0.s[1], w8
; CHECK-GI-NEXT:    // kill: def $d0 killed $d0 killed $q0
; CHECK-GI-NEXT:    ret
   %v4i16 = shufflevector <2 x i16> %A, <2 x i16> %B, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
   ret <4 x i16> %v4i16
}

define <8 x i16> @concat5(<4 x i16> %A, <4 x i16> %B) {
; CHECK-LABEL: concat5:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $d0 killed $d0 def $q0
; CHECK-NEXT:    // kill: def $d1 killed $d1 def $q1
; CHECK-NEXT:    mov v0.d[1], v1.d[0]
; CHECK-NEXT:    ret
   %v8i16 = shufflevector <4 x i16> %A, <4 x i16> %B, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
   ret <8 x i16> %v8i16
}

define <16 x i16> @concat6(ptr %A, ptr %B) {
; CHECK-LABEL: concat6:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ldr q0, [x0]
; CHECK-NEXT:    ldr q1, [x1]
; CHECK-NEXT:    ret
   %tmp1 = load <8 x i16>, ptr %A
   %tmp2 = load <8 x i16>, ptr %B
   %v16i16 = shufflevector <8 x i16> %tmp1, <8 x i16> %tmp2, <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 14, i32 15>
   ret <16 x i16> %v16i16
}

define <4 x i32> @concat7(<2 x i32> %A, <2 x i32> %B) {
; CHECK-LABEL: concat7:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $d0 killed $d0 def $q0
; CHECK-NEXT:    // kill: def $d1 killed $d1 def $q1
; CHECK-NEXT:    mov v0.d[1], v1.d[0]
; CHECK-NEXT:    ret
   %v4i32 = shufflevector <2 x i32> %A, <2 x i32> %B, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
   ret <4 x i32> %v4i32
}

define <8 x i32> @concat8(ptr %A, ptr %B) {
; CHECK-LABEL: concat8:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ldr q0, [x0]
; CHECK-NEXT:    ldr q1, [x1]
; CHECK-NEXT:    ret
   %tmp1 = load <4 x i32>, ptr %A
   %tmp2 = load <4 x i32>, ptr %B
   %v8i32 = shufflevector <4 x i32> %tmp1, <4 x i32> %tmp2, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
   ret <8 x i32> %v8i32
}

define <4 x half> @concat9(<2 x half> %A, <2 x half> %B) {
; CHECK-SD-LABEL: concat9:
; CHECK-SD:       // %bb.0:
; CHECK-SD-NEXT:    zip1 v0.2s, v0.2s, v1.2s
; CHECK-SD-NEXT:    ret
;
; CHECK-GI-LABEL: concat9:
; CHECK-GI:       // %bb.0:
; CHECK-GI-NEXT:    fmov w8, s0
; CHECK-GI-NEXT:    mov v0.s[0], w8
; CHECK-GI-NEXT:    fmov w8, s1
; CHECK-GI-NEXT:    mov v0.s[1], w8
; CHECK-GI-NEXT:    // kill: def $d0 killed $d0 killed $q0
; CHECK-GI-NEXT:    ret
   %v4half= shufflevector <2 x half> %A, <2 x half> %B, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
   ret <4 x half> %v4half
}

define <8 x half> @concat10(<4 x half> %A, <4 x half> %B) {
; CHECK-LABEL: concat10:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $d0 killed $d0 def $q0
; CHECK-NEXT:    // kill: def $d1 killed $d1 def $q1
; CHECK-NEXT:    mov v0.d[1], v1.d[0]
; CHECK-NEXT:    ret
   %v8half= shufflevector <4 x half> %A, <4 x half> %B, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
   ret <8 x half> %v8half
}

define <16 x half> @concat11(<8 x half> %A, <8 x half> %B) {
; CHECK-LABEL: concat11:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ret
   %v16half= shufflevector <8 x half> %A, <8 x half> %B, <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 14, i32 15>
   ret <16 x half> %v16half
}

define <8 x i16> @concat_v8s16_v2s16(ptr %ptr) {
; CHECK-SD-LABEL: concat_v8s16_v2s16:
; CHECK-SD:       // %bb.0:
; CHECK-SD-NEXT:    ldr s0, [x0]
; CHECK-SD-NEXT:    ret
;
; CHECK-GI-LABEL: concat_v8s16_v2s16:
; CHECK-GI:       // %bb.0:
; CHECK-GI-NEXT:    ldr h0, [x0]
; CHECK-GI-NEXT:    ldr h1, [x0, #2]
; CHECK-GI-NEXT:    mov v0.s[1], v1.s[0]
; CHECK-GI-NEXT:    xtn v0.4h, v0.4s
; CHECK-GI-NEXT:    fmov w8, s0
; CHECK-GI-NEXT:    mov v0.s[0], w8
; CHECK-GI-NEXT:    ret
    %a = load <2 x i16>, ptr %ptr
    %b = shufflevector <2 x i16> %a, <2 x i16> %a, <8 x i32> <i32 0, i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
    ret <8 x i16> %b
}

define <16 x i8> @concat_v16s8_v4s8(ptr %ptr) {
; CHECK-LABEL: concat_v16s8_v4s8:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ldr s0, [x0]
; CHECK-NEXT:    ret
    %a = load <4 x i8>, ptr %ptr
    %b = shufflevector <4 x i8> %a, <4 x i8> %a, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
    ret <16 x i8> %b
}

define <16 x i8> @concat_v16s8_v4s8_load(ptr %ptrA, ptr %ptrB, ptr %ptrC, ptr %ptrD) {
; CHECK-LABEL: concat_v16s8_v4s8_load:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ldr s0, [x0]
; CHECK-NEXT:    ld1 { v0.s }[1], [x1]
; CHECK-NEXT:    ld1 { v0.s }[2], [x2]
; CHECK-NEXT:    ld1 { v0.s }[3], [x3]
; CHECK-NEXT:    ret
    %A = load <4 x i8>, ptr %ptrA
    %B = load <4 x i8>, ptr %ptrB
    %C = load <4 x i8>, ptr %ptrC
    %D = load <4 x i8>, ptr %ptrD
    %b = shufflevector <4 x i8> %A, <4 x i8> %B, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
    %c = shufflevector <4 x i8> %C, <4 x i8> %D, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
    %d = shufflevector <16 x i8> %b, <16 x i8> %c, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 16, i32 17, i32 18, i32 19, i32 20, i32 21, i32 22, i32 23>
    ret <16 x i8> %d
}


define <16 x i8> @concat_v16s8_v4s8_reg(<4 x i8> %A, <4 x i8> %B, <4 x i8> %C, <4 x i8> %D) {
; CHECK-SD-LABEL: concat_v16s8_v4s8_reg:
; CHECK-SD:       // %bb.0:
; CHECK-SD-NEXT:    // kill: def $d2 killed $d2 def $q2
; CHECK-SD-NEXT:    // kill: def $d0 killed $d0 def $q0
; CHECK-SD-NEXT:    // kill: def $d3 killed $d3 def $q3
; CHECK-SD-NEXT:    // kill: def $d1 killed $d1 def $q1
; CHECK-SD-NEXT:    mov v2.d[1], v3.d[0]
; CHECK-SD-NEXT:    mov v0.d[1], v1.d[0]
; CHECK-SD-NEXT:    uzp1 v0.16b, v0.16b, v2.16b
; CHECK-SD-NEXT:    ret
;
; CHECK-GI-LABEL: concat_v16s8_v4s8_reg:
; CHECK-GI:       // %bb.0:
; CHECK-GI-NEXT:    // kill: def $d0 killed $d0 def $q0
; CHECK-GI-NEXT:    mov v4.h[0], v0.h[0]
; CHECK-GI-NEXT:    // kill: def $d1 killed $d1 def $q1
; CHECK-GI-NEXT:    mov v5.h[0], v1.h[0]
; CHECK-GI-NEXT:    // kill: def $d2 killed $d2 def $q2
; CHECK-GI-NEXT:    // kill: def $d3 killed $d3 def $q3
; CHECK-GI-NEXT:    mov v6.h[0], v2.h[0]
; CHECK-GI-NEXT:    mov v7.h[0], v3.h[0]
; CHECK-GI-NEXT:    mov v4.h[1], v0.h[1]
; CHECK-GI-NEXT:    mov v5.h[1], v1.h[1]
; CHECK-GI-NEXT:    mov v6.h[1], v2.h[1]
; CHECK-GI-NEXT:    mov v7.h[1], v3.h[1]
; CHECK-GI-NEXT:    mov v4.h[2], v0.h[2]
; CHECK-GI-NEXT:    mov v5.h[2], v1.h[2]
; CHECK-GI-NEXT:    mov v6.h[2], v2.h[2]
; CHECK-GI-NEXT:    mov v7.h[2], v3.h[2]
; CHECK-GI-NEXT:    mov v4.h[3], v0.h[3]
; CHECK-GI-NEXT:    mov v5.h[3], v1.h[3]
; CHECK-GI-NEXT:    mov v6.h[3], v2.h[3]
; CHECK-GI-NEXT:    mov v7.h[3], v3.h[3]
; CHECK-GI-NEXT:    xtn v0.8b, v4.8h
; CHECK-GI-NEXT:    xtn v1.8b, v5.8h
; CHECK-GI-NEXT:    xtn v2.8b, v6.8h
; CHECK-GI-NEXT:    fmov w8, s0
; CHECK-GI-NEXT:    mov v0.s[0], w8
; CHECK-GI-NEXT:    fmov w8, s1
; CHECK-GI-NEXT:    xtn v1.8b, v7.8h
; CHECK-GI-NEXT:    mov v0.s[1], w8
; CHECK-GI-NEXT:    fmov w8, s2
; CHECK-GI-NEXT:    mov v0.s[2], w8
; CHECK-GI-NEXT:    fmov w8, s1
; CHECK-GI-NEXT:    mov v0.s[3], w8
; CHECK-GI-NEXT:    ret
    %b = shufflevector <4 x i8> %A, <4 x i8> %B, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
    %c = shufflevector <4 x i8> %C, <4 x i8> %D, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
    %d = shufflevector <16 x i8> %b, <16 x i8> %c, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 16, i32 17, i32 18, i32 19, i32 20, i32 21, i32 22, i32 23>
    ret <16 x i8> %d
}

define <8 x i16> @concat_v8s16_v2s16_reg(<2 x i16> %A, <2 x i16> %B, <2 x i16> %C, <2 x i16> %D) {
; CHECK-SD-LABEL: concat_v8s16_v2s16_reg:
; CHECK-SD:       // %bb.0:
; CHECK-SD-NEXT:    // kill: def $d3 killed $d3 killed $q0_q1_q2_q3 def $q0_q1_q2_q3
; CHECK-SD-NEXT:    adrp x8, .LCPI15_0
; CHECK-SD-NEXT:    // kill: def $d2 killed $d2 killed $q0_q1_q2_q3 def $q0_q1_q2_q3
; CHECK-SD-NEXT:    ldr q4, [x8, :lo12:.LCPI15_0]
; CHECK-SD-NEXT:    // kill: def $d1 killed $d1 killed $q0_q1_q2_q3 def $q0_q1_q2_q3
; CHECK-SD-NEXT:    // kill: def $d0 killed $d0 killed $q0_q1_q2_q3 def $q0_q1_q2_q3
; CHECK-SD-NEXT:    tbl v0.16b, { v0.16b, v1.16b, v2.16b, v3.16b }, v4.16b
; CHECK-SD-NEXT:    ret
;
; CHECK-GI-LABEL: concat_v8s16_v2s16_reg:
; CHECK-GI:       // %bb.0:
; CHECK-GI-NEXT:    // kill: def $d0 killed $d0 def $q0
; CHECK-GI-NEXT:    mov v4.s[0], v0.s[0]
; CHECK-GI-NEXT:    // kill: def $d1 killed $d1 def $q1
; CHECK-GI-NEXT:    mov v5.s[0], v1.s[0]
; CHECK-GI-NEXT:    // kill: def $d2 killed $d2 def $q2
; CHECK-GI-NEXT:    // kill: def $d3 killed $d3 def $q3
; CHECK-GI-NEXT:    mov v4.s[1], v0.s[1]
; CHECK-GI-NEXT:    mov v5.s[1], v1.s[1]
; CHECK-GI-NEXT:    mov v1.s[0], v2.s[0]
; CHECK-GI-NEXT:    xtn v0.4h, v4.4s
; CHECK-GI-NEXT:    xtn v4.4h, v5.4s
; CHECK-GI-NEXT:    mov v1.s[1], v2.s[1]
; CHECK-GI-NEXT:    mov v2.s[0], v3.s[0]
; CHECK-GI-NEXT:    fmov w8, s0
; CHECK-GI-NEXT:    xtn v1.4h, v1.4s
; CHECK-GI-NEXT:    mov v2.s[1], v3.s[1]
; CHECK-GI-NEXT:    mov v0.s[0], w8
; CHECK-GI-NEXT:    fmov w8, s4
; CHECK-GI-NEXT:    xtn v2.4h, v2.4s
; CHECK-GI-NEXT:    mov v0.s[1], w8
; CHECK-GI-NEXT:    fmov w8, s1
; CHECK-GI-NEXT:    mov v0.s[2], w8
; CHECK-GI-NEXT:    fmov w8, s2
; CHECK-GI-NEXT:    mov v0.s[3], w8
; CHECK-GI-NEXT:    ret
    %b = shufflevector <2 x i16> %A, <2 x i16> %B, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef>
    %c = shufflevector <2 x i16> %C, <2 x i16> %D, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef>
    %d = shufflevector <8 x i16> %b, <8 x i16> %c, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 8, i32 9, i32 10, i32 11>
    ret <8 x i16> %d
}