llvm/test/CodeGen/AArch64/build-one-lane.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=aarch64-- | FileCheck %s

; Check that building up a vector w/ only one non-zero lane initializes
; efficiently.

define <8 x i8> @v8i8z(i8 %t, i8 %s) nounwind {
; CHECK-LABEL: v8i8z:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.2d, #0000000000000000
; CHECK-NEXT:    mov v0.b[7], w1
; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $q0
; CHECK-NEXT:    ret
  %v = insertelement <8 x i8> <i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 undef>, i8 %s, i32 7
  ret <8 x i8> %v
}

define <16 x i8> @v16i8z(i8 %t, i8 %s) nounwind {
; CHECK-LABEL: v16i8z:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.2d, #0000000000000000
; CHECK-NEXT:    mov v0.b[15], w1
; CHECK-NEXT:    ret
  %v = insertelement <16 x i8> <i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 undef>, i8 %s, i32 15
  ret <16 x i8> %v
}

define <4 x i16> @v4i16z(i16 %t, i16 %s) nounwind {
; CHECK-LABEL: v4i16z:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.2d, #0000000000000000
; CHECK-NEXT:    mov v0.h[3], w1
; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $q0
; CHECK-NEXT:    ret
  %v = insertelement <4 x i16> <i16 0, i16 0, i16 0, i16 undef>, i16 %s, i32 3
  ret <4 x i16> %v
}

define <8 x i16> @v8i16z(i16 %t, i16 %s) nounwind {
; CHECK-LABEL: v8i16z:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.2d, #0000000000000000
; CHECK-NEXT:    mov v0.h[7], w1
; CHECK-NEXT:    ret
  %v = insertelement <8 x i16> <i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 undef>, i16 %s, i32 7
  ret <8 x i16> %v
}

define <2 x i32> @v2i32z(i32 %t, i32 %s) nounwind {
; CHECK-LABEL: v2i32z:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.2d, #0000000000000000
; CHECK-NEXT:    mov v0.s[1], w1
; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $q0
; CHECK-NEXT:    ret
  %v = insertelement <2 x i32> <i32 0, i32 undef>, i32 %s, i32 1
  ret <2 x i32> %v
}

define <4 x i32> @v4i32z(i32 %t, i32 %s) nounwind {
; CHECK-LABEL: v4i32z:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.2d, #0000000000000000
; CHECK-NEXT:    mov v0.s[3], w1
; CHECK-NEXT:    ret
  %v = insertelement <4 x i32> <i32 0, i32 0, i32 0, i32 undef>, i32 %s, i32 3
  ret <4 x i32> %v
}

define <2 x i64> @v2i64z(i64 %t, i64 %s) nounwind {
; CHECK-LABEL: v2i64z:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.2d, #0000000000000000
; CHECK-NEXT:    mov v0.d[1], x1
; CHECK-NEXT:    ret
  %v = insertelement <2 x i64> <i64 0, i64 undef>, i64 %s, i32 1
  ret <2 x i64> %v
}

define <2 x float> @v2f32z(float %t, float %s) nounwind {
; CHECK-LABEL: v2f32z:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi d0, #0000000000000000
; CHECK-NEXT:    // kill: def $s1 killed $s1 def $q1
; CHECK-NEXT:    mov v0.s[1], v1.s[0]
; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $q0
; CHECK-NEXT:    ret
  %v = insertelement <2 x float> <float 0.0, float undef>, float %s, i32 1
  ret <2 x float> %v
}

define <4 x float> @v4f32z(float %t, float %s) nounwind {
; CHECK-LABEL: v4f32z:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.2d, #0000000000000000
; CHECK-NEXT:    // kill: def $s1 killed $s1 def $q1
; CHECK-NEXT:    mov v0.s[3], v1.s[0]
; CHECK-NEXT:    ret
  %v = insertelement <4 x float> <float 0.0, float 0.0, float 0.0, float undef>, float %s, i32 3
  ret <4 x float> %v
}

define <2 x double> @v2f64z(double %t, double %s) nounwind {
; CHECK-LABEL: v2f64z:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.2d, #0000000000000000
; CHECK-NEXT:    // kill: def $d1 killed $d1 def $q1
; CHECK-NEXT:    mov v0.d[1], v1.d[0]
; CHECK-NEXT:    ret
  %v = insertelement <2 x double> <double 0.0, double undef>, double %s, i32 1
  ret <2 x double> %v
}

; Check that building up a vector w/ only one non-ones lane initializes
; efficiently.

define <8 x i8> @v8i8m(i8 %t, i8 %s) nounwind {
; CHECK-LABEL: v8i8m:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.2d, #0xffffffffffffffff
; CHECK-NEXT:    mov v0.b[7], w1
; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $q0
; CHECK-NEXT:    ret
  %v = insertelement <8 x i8> <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 undef>, i8 %s, i32 7
  ret <8 x i8> %v
}

define <16 x i8> @v16i8m(i8 %t, i8 %s) nounwind {
; CHECK-LABEL: v16i8m:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.2d, #0xffffffffffffffff
; CHECK-NEXT:    mov v0.b[15], w1
; CHECK-NEXT:    ret
  %v = insertelement <16 x i8> <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 undef>, i8 %s, i32 15
  ret <16 x i8> %v
}

define <4 x i16> @v4i16m(i16 %t, i16 %s) nounwind {
; CHECK-LABEL: v4i16m:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.2d, #0xffffffffffffffff
; CHECK-NEXT:    mov v0.h[3], w1
; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $q0
; CHECK-NEXT:    ret
  %v = insertelement <4 x i16> <i16 -1, i16 -1, i16 -1, i16 undef>, i16 %s, i32 3
  ret <4 x i16> %v
}

define <8 x i16> @v8i16m(i16 %t, i16 %s) nounwind {
; CHECK-LABEL: v8i16m:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.2d, #0xffffffffffffffff
; CHECK-NEXT:    mov v0.h[7], w1
; CHECK-NEXT:    ret
  %v = insertelement <8 x i16> <i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 undef>, i16 %s, i32 7
  ret <8 x i16> %v
}

define <2 x i32> @v2i32m(i32 %t, i32 %s) nounwind {
; CHECK-LABEL: v2i32m:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.2d, #0xffffffffffffffff
; CHECK-NEXT:    mov v0.s[1], w1
; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $q0
; CHECK-NEXT:    ret
  %v = insertelement <2 x i32> <i32 -1, i32 undef>, i32 %s, i32 1
  ret <2 x i32> %v
}

define <4 x i32> @v4i32m(i32 %t, i32 %s) nounwind {
; CHECK-LABEL: v4i32m:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.2d, #0xffffffffffffffff
; CHECK-NEXT:    mov v0.s[3], w1
; CHECK-NEXT:    ret
  %v = insertelement <4 x i32> <i32 -1, i32 -1, i32 -1, i32 undef>, i32 %s, i32 3
  ret <4 x i32> %v
}

define <2 x i64> @v2i64m(i64 %t, i64 %s) nounwind {
; CHECK-LABEL: v2i64m:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.2d, #0xffffffffffffffff
; CHECK-NEXT:    mov v0.d[1], x1
; CHECK-NEXT:    ret
  %v = insertelement <2 x i64> <i64 -1, i64 undef>, i64 %s, i32 1
  ret <2 x i64> %v
}

; Check that building up a vector w/ some constants initializes efficiently.

define void @v8i8st(ptr %p, i8 %s) nounwind {
; CHECK-LABEL: v8i8st:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.8b, #1
; CHECK-NEXT:    mov v0.b[7], w1
; CHECK-NEXT:    str d0, [x0]
; CHECK-NEXT:    ret
  %v = insertelement <8 x i8> <i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 undef>, i8 %s, i32 7
  store <8 x i8> %v, ptr %p, align 8
  ret void
}

define void @v16i8st(ptr %p, i8 %s) nounwind {
; CHECK-LABEL: v16i8st:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.16b, #128
; CHECK-NEXT:    mov v0.b[15], w1
; CHECK-NEXT:    str q0, [x0]
; CHECK-NEXT:    ret
  %v = insertelement <16 x i8> <i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 undef>, i8 %s, i32 15
  store <16 x i8> %v, ptr %p, align 16
  ret void
}

define void @v4i16st(ptr %p, i16 %s) nounwind {
; CHECK-LABEL: v4i16st:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.4h, #85, lsl #8
; CHECK-NEXT:    mov v0.h[3], w1
; CHECK-NEXT:    str d0, [x0]
; CHECK-NEXT:    ret
  %v = insertelement <4 x i16> <i16 21760, i16 21760, i16 21760, i16 undef>, i16 %s, i32 3
  store <4 x i16> %v, ptr %p, align 8
  ret void
}

define void @v8i16st(ptr %p, i16 %s) nounwind {
; CHECK-LABEL: v8i16st:
; CHECK:       // %bb.0:
; CHECK-NEXT:    mvni v0.8h, #85, lsl #8
; CHECK-NEXT:    mov v0.h[7], w1
; CHECK-NEXT:    str q0, [x0]
; CHECK-NEXT:    ret
  %v = insertelement <8 x i16> <i16 -21761, i16 -21761, i16 -21761, i16 -21761, i16 -21761, i16 -21761, i16 -21761, i16 undef>, i16 %s, i32 7
  store <8 x i16> %v, ptr %p, align 16
  ret void
}

define void @v2i32st(ptr %p, i32 %s) nounwind {
; CHECK-LABEL: v2i32st:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.2s, #15, lsl #16
; CHECK-NEXT:    mov v0.s[1], w1
; CHECK-NEXT:    str d0, [x0]
; CHECK-NEXT:    ret
  %v = insertelement <2 x i32> <i32 983040, i32 undef>, i32 %s, i32 1
  store <2 x i32> %v, ptr %p, align 8
  ret void
}

define void @v4i32st(ptr %p, i32 %s) nounwind {
; CHECK-LABEL: v4i32st:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v0.4s, #248, msl #16
; CHECK-NEXT:    mov v0.s[3], w1
; CHECK-NEXT:    str q0, [x0]
; CHECK-NEXT:    ret
  %v = insertelement <4 x i32> <i32 16318463, i32 16318463, i32 16318463, i32 undef>, i32 %s, i32 3
  store <4 x i32> %v, ptr %p, align 16
  ret void
}

define void @v2i64st(ptr %p, i64 %s) nounwind {
; CHECK-LABEL: v2i64st:
; CHECK:       // %bb.0:
; CHECK-NEXT:    fmov v0.2d, #-2.00000000
; CHECK-NEXT:    mov v0.d[1], x1
; CHECK-NEXT:    str q0, [x0]
; CHECK-NEXT:    ret
  %v = insertelement <2 x i64> <i64 13835058055282163712, i64 undef>, i64 %s, i32 1
  store <2 x i64> %v, ptr %p, align 16
  ret void
}

define void @v2f32st(ptr %p, float %s) nounwind {
; CHECK-LABEL: v2f32st:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v1.2s, #64, lsl #24
; CHECK-NEXT:    // kill: def $s0 killed $s0 def $q0
; CHECK-NEXT:    mov v1.s[1], v0.s[0]
; CHECK-NEXT:    str d1, [x0]
; CHECK-NEXT:    ret
  %v = insertelement <2 x float> <float 2.0, float undef>, float %s, i32 1
  store <2 x float> %v, ptr %p, align 8
  ret void
}

define void @v4f32st(ptr %p, float %s) nounwind {
; CHECK-LABEL: v4f32st:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v1.4s, #192, lsl #24
; CHECK-NEXT:    // kill: def $s0 killed $s0 def $q0
; CHECK-NEXT:    mov v1.s[3], v0.s[0]
; CHECK-NEXT:    str q1, [x0]
; CHECK-NEXT:    ret
  %v = insertelement <4 x float> <float -2.0, float -2.0, float -2.0, float undef>, float %s, i32 3
  store <4 x float> %v, ptr %p, align 16
  ret void
}

define void @v2f64st(ptr %p, double %s) nounwind {
; CHECK-LABEL: v2f64st:
; CHECK:       // %bb.0:
; CHECK-NEXT:    fmov v1.2d, #2.00000000
; CHECK-NEXT:    // kill: def $d0 killed $d0 def $q0
; CHECK-NEXT:    mov v1.d[1], v0.d[0]
; CHECK-NEXT:    str q1, [x0]
; CHECK-NEXT:    ret
  %v = insertelement <2 x double> <double 2.0, double undef>, double %s, i32 1
  store <2 x double> %v, ptr %p, align 16
  ret void
}

; In this test the illegal type has a preferred alignment greater than the
; stack alignment, that gets reduced to the alignment of a broken down
; legal type.
define <32 x i8> @test_lanex_32xi8(<32 x i8> %a, i32 %x) {
; CHECK-LABEL: test_lanex_32xi8:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $w0 killed $w0 def $x0
; CHECK-NEXT:    stp q0, q1, [sp, #-32]!
; CHECK-NEXT:    .cfi_def_cfa_offset 32
; CHECK-NEXT:    and x8, x0, #0x1f
; CHECK-NEXT:    mov x9, sp
; CHECK-NEXT:    mov w10, #30 // =0x1e
; CHECK-NEXT:    strb w10, [x9, x8]
; CHECK-NEXT:    ldp q0, q1, [sp], #32
; CHECK-NEXT:    ret
  %b = insertelement <32 x i8> %a, i8 30, i32 %x
  ret <32 x i8> %b
}