; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
; RUN: llc -mtriple=aarch64-apple-darwin -mattr=+neon -verify-machineinstrs < %s | FileCheck %s

; Basic tests from input vector to bitmask
; IR generated from clang for:
; __builtin_convertvector + reinterpret_cast<uint16&>

define i16 @convert_to_bitmask16(<16 x i8> %vec) {
; Bits used in mask
; CHECK-LABEL: convert_to_bitmask16:
; CHECK:       ; %bb.0:
; CHECK-NEXT:  Lloh0:
; CHECK-NEXT:    adrp x8, lCPI0_0@PAGE
; CHECK-NEXT:    cmeq.16b v0, v0, #0
; CHECK-NEXT:  Lloh1:
; CHECK-NEXT:    ldr q1, [x8, lCPI0_0@PAGEOFF]
; CHECK-NEXT:    bic.16b v0, v1, v0
; CHECK-NEXT:    ext.16b v1, v0, v0, #8
; CHECK-NEXT:    zip1.16b v0, v0, v1
; CHECK-NEXT:    addv.8h h0, v0
; CHECK-NEXT:    fmov w0, s0
; CHECK-NEXT:    ret
; CHECK-NEXT:    .loh AdrpLdr Lloh0, Lloh1

; Actual conversion

  %cmp_result = icmp ne <16 x i8> %vec, zeroinitializer
  %bitmask = bitcast <16 x i1> %cmp_result to i16
  ret i16 %bitmask
}

define i16 @convert_to_bitmask8(<8 x i16> %vec) {
; CHECK-LABEL: convert_to_bitmask8:
; CHECK:       ; %bb.0:
; CHECK-NEXT:  Lloh2:
; CHECK-NEXT:    adrp x8, lCPI1_0@PAGE
; CHECK-NEXT:    cmeq.8h v0, v0, #0
; CHECK-NEXT:  Lloh3:
; CHECK-NEXT:    ldr q1, [x8, lCPI1_0@PAGEOFF]
; CHECK-NEXT:    bic.16b v0, v1, v0
; CHECK-NEXT:    addv.8h h0, v0
; CHECK-NEXT:    fmov w8, s0
; CHECK-NEXT:    and w0, w8, #0xff
; CHECK-NEXT:    ret
; CHECK-NEXT:    .loh AdrpLdr Lloh2, Lloh3


  %cmp_result = icmp ne <8 x i16> %vec, zeroinitializer
  %bitmask = bitcast <8 x i1> %cmp_result to i8
  %extended_bitmask = zext i8 %bitmask to i16
  ret i16 %extended_bitmask
}

define i4 @convert_to_bitmask4(<4 x i32> %vec) {
; CHECK-LABEL: convert_to_bitmask4:
; CHECK:       ; %bb.0:
; CHECK-NEXT:  Lloh4:
; CHECK-NEXT:    adrp x8, lCPI2_0@PAGE
; CHECK-NEXT:    cmeq.4s v0, v0, #0
; CHECK-NEXT:  Lloh5:
; CHECK-NEXT:    ldr q1, [x8, lCPI2_0@PAGEOFF]
; CHECK-NEXT:    bic.16b v0, v1, v0
; CHECK-NEXT:    addv.4s s0, v0
; CHECK-NEXT:    fmov w0, s0
; CHECK-NEXT:    ret
; CHECK-NEXT:    .loh AdrpLdr Lloh4, Lloh5


  %cmp_result = icmp ne <4 x i32> %vec, zeroinitializer
  %bitmask = bitcast <4 x i1> %cmp_result to i4
  ret i4 %bitmask
}

define i8 @convert_to_bitmask2(<2 x i64> %vec) {
; CHECK-LABEL: convert_to_bitmask2:
; CHECK:       ; %bb.0:
; CHECK-NEXT:  Lloh6:
; CHECK-NEXT:    adrp x8, lCPI3_0@PAGE
; CHECK-NEXT:    cmeq.2d v0, v0, #0
; CHECK-NEXT:  Lloh7:
; CHECK-NEXT:    ldr q1, [x8, lCPI3_0@PAGEOFF]
; CHECK-NEXT:    bic.16b v0, v1, v0
; CHECK-NEXT:    addp.2d d0, v0
; CHECK-NEXT:    fmov x8, d0
; CHECK-NEXT:    and w0, w8, #0x3
; CHECK-NEXT:    ret
; CHECK-NEXT:    .loh AdrpLdr Lloh6, Lloh7


  %cmp_result = icmp ne <2 x i64> %vec, zeroinitializer
  %bitmask = bitcast <2 x i1> %cmp_result to i2
  %extended_bitmask = zext i2 %bitmask to i8
  ret i8 %extended_bitmask
}

; Clang's __builtin_convertvector adds an undef vector concat for vectors with <8 elements.
define i8 @clang_builtins_undef_concat_convert_to_bitmask4(<4 x i32> %vec) {
; CHECK-LABEL: clang_builtins_undef_concat_convert_to_bitmask4:
; CHECK:       ; %bb.0:
; CHECK-NEXT:  Lloh8:
; CHECK-NEXT:    adrp x8, lCPI4_0@PAGE
; CHECK-NEXT:    cmeq.4s v0, v0, #0
; CHECK-NEXT:  Lloh9:
; CHECK-NEXT:    ldr q1, [x8, lCPI4_0@PAGEOFF]
; CHECK-NEXT:    bic.16b v0, v1, v0
; CHECK-NEXT:    addv.4s s0, v0
; CHECK-NEXT:    fmov w0, s0
; CHECK-NEXT:    ret
; CHECK-NEXT:    .loh AdrpLdr Lloh8, Lloh9


  %cmp_result = icmp ne <4 x i32> %vec, zeroinitializer
  %vector_pad = shufflevector <4 x i1> %cmp_result, <4 x i1> poison, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef>
  %bitmask = bitcast <8 x i1> %vector_pad to i8
  ret i8 %bitmask
}


define i4 @convert_to_bitmask_no_compare(<4 x i32> %vec1, <4 x i32> %vec2) {
; CHECK-LABEL: convert_to_bitmask_no_compare:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    and.16b v0, v0, v1
; CHECK-NEXT:  Lloh10:
; CHECK-NEXT:    adrp x8, lCPI5_0@PAGE
; CHECK-NEXT:  Lloh11:
; CHECK-NEXT:    ldr q1, [x8, lCPI5_0@PAGEOFF]
; CHECK-NEXT:    shl.4s v0, v0, #31
; CHECK-NEXT:    cmlt.4s v0, v0, #0
; CHECK-NEXT:    and.16b v0, v0, v1
; CHECK-NEXT:    addv.4s s0, v0
; CHECK-NEXT:    fmov w0, s0
; CHECK-NEXT:    ret
; CHECK-NEXT:    .loh AdrpLdr Lloh10, Lloh11


  %cmp = and <4 x i32> %vec1, %vec2
  %trunc = trunc <4 x i32> %cmp to <4 x i1>
  %bitmask = bitcast <4 x i1> %trunc to i4
  ret i4 %bitmask
}

define i4 @convert_to_bitmask_with_compare_chain(<4 x i32> %vec1, <4 x i32> %vec2) {
; CHECK-LABEL: convert_to_bitmask_with_compare_chain:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    cmeq.4s v2, v0, #0
; CHECK-NEXT:    cmeq.4s v0, v0, v1
; CHECK-NEXT:  Lloh12:
; CHECK-NEXT:    adrp x8, lCPI6_0@PAGE
; CHECK-NEXT:  Lloh13:
; CHECK-NEXT:    ldr q1, [x8, lCPI6_0@PAGEOFF]
; CHECK-NEXT:    bic.16b v0, v0, v2
; CHECK-NEXT:    and.16b v0, v0, v1
; CHECK-NEXT:    addv.4s s0, v0
; CHECK-NEXT:    fmov w0, s0
; CHECK-NEXT:    ret
; CHECK-NEXT:    .loh AdrpLdr Lloh12, Lloh13


  %cmp1 = icmp ne <4 x i32> %vec1, zeroinitializer
  %cmp2 = icmp eq <4 x i32> %vec1, %vec2
  %cmp3 = and <4 x i1> %cmp1, %cmp2
  %bitmask = bitcast <4 x i1> %cmp3 to i4
  ret i4 %bitmask
}

define i4 @convert_to_bitmask_with_trunc_in_chain(<4 x i32> %vec1, <4 x i32> %vec2) {
; CHECK-LABEL: convert_to_bitmask_with_trunc_in_chain:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    cmeq.4s v0, v0, #0
; CHECK-NEXT:  Lloh14:
; CHECK-NEXT:    adrp x8, lCPI7_0@PAGE
; CHECK-NEXT:    bic.16b v0, v1, v0
; CHECK-NEXT:  Lloh15:
; CHECK-NEXT:    ldr q1, [x8, lCPI7_0@PAGEOFF]
; CHECK-NEXT:    shl.4s v0, v0, #31
; CHECK-NEXT:    cmlt.4s v0, v0, #0
; CHECK-NEXT:    and.16b v0, v0, v1
; CHECK-NEXT:    addv.4s s0, v0
; CHECK-NEXT:    fmov w0, s0
; CHECK-NEXT:    ret
; CHECK-NEXT:    .loh AdrpLdr Lloh14, Lloh15


  %cmp1 = icmp ne <4 x i32> %vec1, zeroinitializer
  %trunc_vec = trunc <4 x i32> %vec2 to <4 x i1>
  %and_res = and <4 x i1> %cmp1, %trunc_vec
  %bitmask = bitcast <4 x i1> %and_res to i4
  ret i4 %bitmask
}

define i4 @convert_to_bitmask_with_unknown_type_in_long_chain(<4 x i32> %vec1, <4 x i32> %vec2) {
; CHECK-LABEL: convert_to_bitmask_with_unknown_type_in_long_chain:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    cmeq.4s v0, v0, #0
; CHECK-NEXT:    cmeq.4s v1, v1, #0
; CHECK-NEXT:  Lloh16:
; CHECK-NEXT:    adrp x8, lCPI8_0@PAGE
; CHECK-NEXT:    movi d2, #0x000000ffffffff
; CHECK-NEXT:    movi d3, #0x00ffffffffffff
; CHECK-NEXT:    bic.16b v0, v1, v0
; CHECK-NEXT:    movi d1, #0xffff0000ffff0000
; CHECK-NEXT:    xtn.4h v0, v0
; CHECK-NEXT:    orr.8b v0, v0, v2
; CHECK-NEXT:    movi d2, #0x00ffffffff0000
; CHECK-NEXT:    eor.8b v1, v0, v1
; CHECK-NEXT:    eor.8b v0, v0, v2
; CHECK-NEXT:    mov.h v1[2], wzr
; CHECK-NEXT:    orr.8b v0, v0, v3
; CHECK-NEXT:    orr.8b v0, v1, v0
; CHECK-NEXT:  Lloh17:
; CHECK-NEXT:    ldr d1, [x8, lCPI8_0@PAGEOFF]
; CHECK-NEXT:    shl.4h v0, v0, #15
; CHECK-NEXT:    cmlt.4h v0, v0, #0
; CHECK-NEXT:    and.8b v0, v0, v1
; CHECK-NEXT:    addv.4h h0, v0
; CHECK-NEXT:    fmov w0, s0
; CHECK-NEXT:    ret
; CHECK-NEXT:    .loh AdrpLdr Lloh16, Lloh17


  %cmp1 = icmp ne <4 x i32> %vec1, zeroinitializer
  %cmp2 = icmp eq <4 x i32> %vec2, zeroinitializer

  ; Artificially make this a long chain to hide the original type
  %chain1 = and <4 x i1> %cmp1, %cmp2;
  %chain2 = or <4 x i1> %chain1, <i1 1, i1 1, i1 0, i1 0>;
  %chain3 = xor <4 x i1> %chain2, <i1 0, i1 1, i1 0, i1 1>;
  %chain4 = and <4 x i1> %chain3, <i1 1, i1 1, i1 0, i1 1>;
  %chain5 = or <4 x i1> %chain4, <i1 1, i1 1, i1 1, i1 0>;
  %chain6 = xor <4 x i1> <i1 0, i1 1, i1 1, i1 0>, %chain2;
  %chain7 = or <4 x i1> %chain5, %chain6;
  %bitmask = bitcast <4 x i1> %chain7 to i4
  ret i4 %bitmask
}

define i4 @convert_to_bitmask_with_different_types_in_chain(<4 x i16> %vec1, <4 x i32> %vec2) {
; CHECK-LABEL: convert_to_bitmask_with_different_types_in_chain:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    cmeq.4s v1, v1, #0
; CHECK-NEXT:    cmeq.4h v0, v0, #0
; CHECK-NEXT:  Lloh18:
; CHECK-NEXT:    adrp x8, lCPI9_0@PAGE
; CHECK-NEXT:    xtn.4h v1, v1
; CHECK-NEXT:    orn.8b v0, v1, v0
; CHECK-NEXT:  Lloh19:
; CHECK-NEXT:    ldr d1, [x8, lCPI9_0@PAGEOFF]
; CHECK-NEXT:    and.8b v0, v0, v1
; CHECK-NEXT:    addv.4h h0, v0
; CHECK-NEXT:    fmov w0, s0
; CHECK-NEXT:    ret
; CHECK-NEXT:    .loh AdrpLdr Lloh18, Lloh19


  %cmp1 = icmp ne <4 x i16> %vec1, zeroinitializer
  %cmp2 = icmp eq <4 x i32> %vec2, zeroinitializer
  %chain1 = or <4 x i1> %cmp1, %cmp2
  %bitmask = bitcast <4 x i1> %chain1 to i4
  ret i4 %bitmask
}

define i16 @convert_to_bitmask_without_knowing_type(<16 x i1> %vec) {
; CHECK-LABEL: convert_to_bitmask_without_knowing_type:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    shl.16b v0, v0, #7
; CHECK-NEXT:  Lloh20:
; CHECK-NEXT:    adrp x8, lCPI10_0@PAGE
; CHECK-NEXT:  Lloh21:
; CHECK-NEXT:    ldr q1, [x8, lCPI10_0@PAGEOFF]
; CHECK-NEXT:    cmlt.16b v0, v0, #0
; CHECK-NEXT:    and.16b v0, v0, v1
; CHECK-NEXT:    ext.16b v1, v0, v0, #8
; CHECK-NEXT:    zip1.16b v0, v0, v1
; CHECK-NEXT:    addv.8h h0, v0
; CHECK-NEXT:    fmov w0, s0
; CHECK-NEXT:    ret
; CHECK-NEXT:    .loh AdrpLdr Lloh20, Lloh21

  %bitmask = bitcast <16 x i1> %vec to i16
  ret i16 %bitmask
}

define i2 @convert_to_bitmask_2xi32(<2 x i32> %vec) {
; CHECK-LABEL: convert_to_bitmask_2xi32:
; CHECK:       ; %bb.0:
; CHECK-NEXT:  Lloh22:
; CHECK-NEXT:    adrp x8, lCPI11_0@PAGE
; CHECK-NEXT:    cmeq.2s v0, v0, #0
; CHECK-NEXT:  Lloh23:
; CHECK-NEXT:    ldr d1, [x8, lCPI11_0@PAGEOFF]
; CHECK-NEXT:    bic.8b v0, v1, v0
; CHECK-NEXT:    addp.2s v0, v0, v0
; CHECK-NEXT:    fmov w0, s0
; CHECK-NEXT:    ret
; CHECK-NEXT:    .loh AdrpLdr Lloh22, Lloh23

  %cmp_result = icmp ne <2 x i32> %vec, zeroinitializer
  %bitmask = bitcast <2 x i1> %cmp_result to i2
  ret i2 %bitmask
}

define i4 @convert_to_bitmask_4xi8(<4 x i8> %vec) {
; CHECK-LABEL: convert_to_bitmask_4xi8:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    bic.4h v0, #255, lsl #8
; CHECK-NEXT:  Lloh24:
; CHECK-NEXT:    adrp x8, lCPI12_0@PAGE
; CHECK-NEXT:  Lloh25:
; CHECK-NEXT:    ldr d1, [x8, lCPI12_0@PAGEOFF]
; CHECK-NEXT:    cmeq.4h v0, v0, #0
; CHECK-NEXT:    bic.8b v0, v1, v0
; CHECK-NEXT:    addv.4h h0, v0
; CHECK-NEXT:    fmov w0, s0
; CHECK-NEXT:    ret
; CHECK-NEXT:    .loh AdrpLdr Lloh24, Lloh25

  %cmp_result = icmp ne <4 x i8> %vec, zeroinitializer
  %bitmask = bitcast <4 x i1> %cmp_result to i4
  ret i4 %bitmask
}

define i8 @convert_to_bitmask_8xi2(<8 x i2> %vec) {
; CHECK-LABEL: convert_to_bitmask_8xi2:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    movi.8b v1, #3
; CHECK-NEXT:  Lloh26:
; CHECK-NEXT:    adrp x8, lCPI13_0@PAGE
; CHECK-NEXT:    and.8b v0, v0, v1
; CHECK-NEXT:  Lloh27:
; CHECK-NEXT:    ldr d1, [x8, lCPI13_0@PAGEOFF]
; CHECK-NEXT:    cmeq.8b v0, v0, #0
; CHECK-NEXT:    bic.8b v0, v1, v0
; CHECK-NEXT:    addv.8b b0, v0
; CHECK-NEXT:    fmov w0, s0
; CHECK-NEXT:    ret
; CHECK-NEXT:    .loh AdrpLdr Lloh26, Lloh27

  %cmp_result = icmp ne <8 x i2> %vec, zeroinitializer
  %bitmask = bitcast <8 x i1> %cmp_result to i8
  ret i8 %bitmask
}

define i4 @convert_to_bitmask_float(<4 x float> %vec) {
; CHECK-LABEL: convert_to_bitmask_float:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    fcmgt.4s v1, v0, #0.0
; CHECK-NEXT:    fcmlt.4s v0, v0, #0.0
; CHECK-NEXT:  Lloh28:
; CHECK-NEXT:    adrp x8, lCPI14_0@PAGE
; CHECK-NEXT:    orr.16b v0, v0, v1
; CHECK-NEXT:  Lloh29:
; CHECK-NEXT:    ldr q1, [x8, lCPI14_0@PAGEOFF]
; CHECK-NEXT:    and.16b v0, v0, v1
; CHECK-NEXT:    addv.4s s0, v0
; CHECK-NEXT:    fmov w0, s0
; CHECK-NEXT:    ret
; CHECK-NEXT:    .loh AdrpLdr Lloh28, Lloh29


  %cmp_result = fcmp one <4 x float> %vec, zeroinitializer
  %bitmask = bitcast <4 x i1> %cmp_result to i4
  ret i4 %bitmask
}

; Larger vector types don't map directly, but the can be split/truncated and then converted.
; After the comparison against 0, this is truncated to <8 x i16>, which is valid again.
define i8 @convert_large_vector(<8 x i32> %vec) {
; CHECK-LABEL: convert_large_vector:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    sub sp, sp, #16
; CHECK-NEXT:    .cfi_def_cfa_offset 16
; CHECK-NEXT:    cmeq.4s v1, v1, #0
; CHECK-NEXT:    cmeq.4s v0, v0, #0
; CHECK-NEXT:  Lloh30:
; CHECK-NEXT:    adrp x8, lCPI15_0@PAGE
; CHECK-NEXT:    uzp1.8h v0, v0, v1
; CHECK-NEXT:  Lloh31:
; CHECK-NEXT:    ldr q1, [x8, lCPI15_0@PAGEOFF]
; CHECK-NEXT:    bic.16b v0, v1, v0
; CHECK-NEXT:    addv.8h h0, v0
; CHECK-NEXT:    fmov w8, s0
; CHECK-NEXT:    and w0, w8, #0xff
; CHECK-NEXT:    add sp, sp, #16
; CHECK-NEXT:    ret
; CHECK-NEXT:    .loh AdrpLdr Lloh30, Lloh31


   %cmp_result = icmp ne <8 x i32> %vec, zeroinitializer
   %bitmask = bitcast <8 x i1> %cmp_result to i8
   ret i8 %bitmask
}

define i4 @convert_legalized_illegal_element_size(<4 x i22> %vec) {
; CHECK-LABEL: convert_legalized_illegal_element_size:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    movi.4s v1, #63, msl #16
; CHECK-NEXT:  Lloh32:
; CHECK-NEXT:    adrp x8, lCPI16_0@PAGE
; CHECK-NEXT:    cmtst.4s v0, v0, v1
; CHECK-NEXT:  Lloh33:
; CHECK-NEXT:    ldr d1, [x8, lCPI16_0@PAGEOFF]
; CHECK-NEXT:    xtn.4h v0, v0
; CHECK-NEXT:    and.8b v0, v0, v1
; CHECK-NEXT:    addv.4h h0, v0
; CHECK-NEXT:    fmov w0, s0
; CHECK-NEXT:    ret
; CHECK-NEXT:    .loh AdrpLdr Lloh32, Lloh33

  %cmp_result = icmp ne <4 x i22> %vec, zeroinitializer
  %bitmask = bitcast <4 x i1> %cmp_result to i4
  ret i4 %bitmask
}

; This may still be converted as a v8i8 after the vector concat (but not as v4iX).
define i8 @no_direct_convert_for_bad_concat(<4 x i32> %vec) {
; CHECK-LABEL: no_direct_convert_for_bad_concat:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    cmtst.4s v0, v0, v0
; CHECK-NEXT:  Lloh34:
; CHECK-NEXT:    adrp x8, lCPI17_0@PAGE
; CHECK-NEXT:    xtn.4h v0, v0
; CHECK-NEXT:    umov.h w9, v0[0]
; CHECK-NEXT:    mov.b v1[4], w9
; CHECK-NEXT:    umov.h w9, v0[1]
; CHECK-NEXT:    mov.b v1[5], w9
; CHECK-NEXT:    umov.h w9, v0[2]
; CHECK-NEXT:    mov.b v1[6], w9
; CHECK-NEXT:    umov.h w9, v0[3]
; CHECK-NEXT:    mov.b v1[7], w9
; CHECK-NEXT:    shl.8b v0, v1, #7
; CHECK-NEXT:  Lloh35:
; CHECK-NEXT:    ldr d1, [x8, lCPI17_0@PAGEOFF]
; CHECK-NEXT:    cmlt.8b v0, v0, #0
; CHECK-NEXT:    and.8b v0, v0, v1
; CHECK-NEXT:    addv.8b b0, v0
; CHECK-NEXT:    fmov w0, s0
; CHECK-NEXT:    ret
; CHECK-NEXT:    .loh AdrpLdr Lloh34, Lloh35

  %cmp_result = icmp ne <4 x i32> %vec, zeroinitializer
  %vector_pad = shufflevector <4 x i1> poison, <4 x i1> %cmp_result, <8 x i32> <i32 undef, i32 undef, i32 undef, i32 undef, i32 4, i32 5, i32 6, i32 7>
  %bitmask = bitcast <8 x i1> %vector_pad to i8
  ret i8 %bitmask
}

define <8 x i1> @no_convert_without_direct_bitcast(<8 x i16> %vec) {
; CHECK-LABEL: no_convert_without_direct_bitcast:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    cmtst.8h v0, v0, v0
; CHECK-NEXT:    xtn.8b v0, v0
; CHECK-NEXT:    ret

   %cmp_result = icmp ne <8 x i16> %vec, zeroinitializer
   ret <8 x i1> %cmp_result
}

define i6 @no_combine_illegal_num_elements(<6 x i32> %vec) {
; CHECK-LABEL: no_combine_illegal_num_elements:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    sub sp, sp, #16
; CHECK-NEXT:    .cfi_def_cfa_offset 16
; CHECK-NEXT:    fmov s0, w0
; CHECK-NEXT:    fmov s1, w4
; CHECK-NEXT:    mov.s v0[1], w1
; CHECK-NEXT:    mov.s v1[1], w5
; CHECK-NEXT:    mov.s v0[2], w2
; CHECK-NEXT:    cmeq.4s v1, v1, #0
; CHECK-NEXT:    mov.s v0[3], w3
; CHECK-NEXT:    cmeq.4s v0, v0, #0
; CHECK-NEXT:    uzp1.8h v0, v0, v1
; CHECK-NEXT:    mvn.16b v0, v0
; CHECK-NEXT:    xtn.8b v0, v0
; CHECK-NEXT:    umov.b w8, v0[0]
; CHECK-NEXT:    umov.b w9, v0[1]
; CHECK-NEXT:    umov.b w10, v0[2]
; CHECK-NEXT:    and w8, w8, #0x1
; CHECK-NEXT:    bfi w8, w9, #1, #1
; CHECK-NEXT:    umov.b w9, v0[3]
; CHECK-NEXT:    bfi w8, w10, #2, #1
; CHECK-NEXT:    umov.b w10, v0[4]
; CHECK-NEXT:    bfi w8, w9, #3, #1
; CHECK-NEXT:    umov.b w9, v0[5]
; CHECK-NEXT:    bfi w8, w10, #4, #1
; CHECK-NEXT:    orr w8, w8, w9, lsl #5
; CHECK-NEXT:    and w0, w8, #0x3f
; CHECK-NEXT:    add sp, sp, #16
; CHECK-NEXT:    ret

  %cmp_result = icmp ne <6 x i32> %vec, zeroinitializer
  %bitmask = bitcast <6 x i1> %cmp_result to i6
  ret i6 %bitmask
}

; Only apply the combine when casting a vector to a scalar.
define <2 x i8> @vector_to_vector_cast(<16 x i1> %arg) nounwind {
; CHECK-LABEL: vector_to_vector_cast:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    sub sp, sp, #16
; CHECK-NEXT:    shl.16b v0, v0, #7
; CHECK-NEXT:  Lloh36:
; CHECK-NEXT:    adrp x8, lCPI20_0@PAGE
; CHECK-NEXT:  Lloh37:
; CHECK-NEXT:    ldr q1, [x8, lCPI20_0@PAGEOFF]
; CHECK-NEXT:    add x8, sp, #14
; CHECK-NEXT:    cmlt.16b v0, v0, #0
; CHECK-NEXT:    and.16b v0, v0, v1
; CHECK-NEXT:    ext.16b v1, v0, v0, #8
; CHECK-NEXT:    zip1.16b v0, v0, v1
; CHECK-NEXT:    addv.8h h0, v0
; CHECK-NEXT:    str h0, [sp, #14]
; CHECK-NEXT:    ld1.b { v0 }[0], [x8]
; CHECK-NEXT:    orr x8, x8, #0x1
; CHECK-NEXT:    ld1.b { v0 }[4], [x8]
; CHECK-NEXT:    ; kill: def $d0 killed $d0 killed $q0
; CHECK-NEXT:    add sp, sp, #16
; CHECK-NEXT:    ret
; CHECK-NEXT:    .loh AdrpLdr Lloh36, Lloh37
  %bc = bitcast <16 x i1> %arg to <2 x i8>
  ret <2 x i8> %bc
}