test/CodeGen/AArch64/sve-split-insert-elt.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sve < %s 2>%t | FileCheck %s
; RUN: FileCheck --check-prefix=WARN --allow-empty %s <%t

; If this check fails please read test/CodeGen/AArch64/README for instructions on how to resolve it.
; WARN-NOT: warning

; INSERT VECTOR ELT

define <vscale x 8 x i8> @promote_insert_8i8(<vscale x 8 x i8> %a, i8 %elt, i64 %idx) {
; CHECK-LABEL: promote_insert_8i8:
; CHECK:       // %bb.0:
; CHECK-NEXT:    mov z1.h, w1
; CHECK-NEXT:    index z2.h, #0, #1
; CHECK-NEXT:    ptrue p0.h
; CHECK-NEXT:    cmpeq p0.h, p0/z, z2.h, z1.h
; CHECK-NEXT:    mov z0.h, p0/m, w0
; CHECK-NEXT:    ret
  %ins = insertelement <vscale x 8 x i8> %a, i8 %elt, i64 %idx
  ret <vscale x 8 x i8> %ins
}

define <vscale x 32 x i8> @split_insert_32i8_idx(<vscale x 32 x i8> %a, i8 %elt, i64 %idx) {
; CHECK-LABEL: split_insert_32i8_idx:
; CHECK:       // %bb.0:
; CHECK-NEXT:    str x29, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT:    addvl sp, sp, #-2
; CHECK-NEXT:    .cfi_escape 0x0f, 0x0c, 0x8f, 0x00, 0x11, 0x10, 0x22, 0x11, 0x10, 0x92, 0x2e, 0x00, 0x1e, 0x22 // sp + 16 + 16 * VG
; CHECK-NEXT:    .cfi_offset w29, -16
; CHECK-NEXT:    rdvl x8, #2
; CHECK-NEXT:    sub x8, x8, #1 // =1
; CHECK-NEXT:    cmp x1, x8
; CHECK-NEXT:    ptrue p0.b
; CHECK-NEXT:    csel x8, x1, x8, lo
; CHECK-NEXT:    mov x9, sp
; CHECK-NEXT:    st1b { z1.b }, p0, [x9, #1, mul vl]
; CHECK-NEXT:    st1b { z0.b }, p0, [sp]
; CHECK-NEXT:    strb w0, [x9, x8]
; CHECK-NEXT:    ld1b { z1.b }, p0/z, [x9, #1, mul vl]
; CHECK-NEXT:    ld1b { z0.b }, p0/z, [sp]
; CHECK-NEXT:    addvl sp, sp, #2
; CHECK-NEXT:    ldr x29, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT:    ret
  %ins = insertelement <vscale x 32 x i8> %a, i8 %elt, i64 %idx
  ret <vscale x 32 x i8> %ins
}

define <vscale x 8 x float> @split_insert_8f32_idx(<vscale x 8 x float> %a, float %elt, i64 %idx) {
; CHECK-LABEL: split_insert_8f32_idx:
; CHECK:       // %bb.0:
; CHECK-NEXT:    str x29, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT:    addvl sp, sp, #-2
; CHECK-NEXT:    .cfi_escape 0x0f, 0x0c, 0x8f, 0x00, 0x11, 0x10, 0x22, 0x11, 0x10, 0x92, 0x2e, 0x00, 0x1e, 0x22 // sp + 16 + 16 * VG
; CHECK-NEXT:    .cfi_offset w29, -16
; CHECK-NEXT:    cnth x8
; CHECK-NEXT:    sub x8, x8, #1 // =1
; CHECK-NEXT:    cmp x0, x8
; CHECK-NEXT:    ptrue p0.s
; CHECK-NEXT:    csel x8, x0, x8, lo
; CHECK-NEXT:    mov x9, sp
; CHECK-NEXT:    st1w { z1.s }, p0, [x9, #1, mul vl]
; CHECK-NEXT:    st1w { z0.s }, p0, [sp]
; CHECK-NEXT:    str s2, [x9, x8, lsl #2]
; CHECK-NEXT:    ld1w { z1.s }, p0/z, [x9, #1, mul vl]
; CHECK-NEXT:    ld1w { z0.s }, p0/z, [sp]
; CHECK-NEXT:    addvl sp, sp, #2
; CHECK-NEXT:    ldr x29, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT:    ret
  %ins = insertelement <vscale x 8 x float> %a, float %elt, i64 %idx
  ret <vscale x 8 x float> %ins
}

define <vscale x 8 x i64> @split_insert_8i64_idx(<vscale x 8 x i64> %a, i64 %elt, i64 %idx) {
; CHECK-LABEL: split_insert_8i64_idx:
; CHECK:       // %bb.0:
; CHECK-NEXT:    str x29, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT:    addvl sp, sp, #-4
; CHECK-NEXT:    .cfi_escape 0x0f, 0x0c, 0x8f, 0x00, 0x11, 0x10, 0x22, 0x11, 0x20, 0x92, 0x2e, 0x00, 0x1e, 0x22 // sp + 16 + 32 * VG
; CHECK-NEXT:    .cfi_offset w29, -16
; CHECK-NEXT:    cnth x8
; CHECK-NEXT:    sub x8, x8, #1 // =1
; CHECK-NEXT:    cmp x1, x8
; CHECK-NEXT:    ptrue p0.d
; CHECK-NEXT:    csel x8, x1, x8, lo
; CHECK-NEXT:    mov x9, sp
; CHECK-NEXT:    st1d { z3.d }, p0, [x9, #3, mul vl]
; CHECK-NEXT:    st1d { z2.d }, p0, [x9, #2, mul vl]
; CHECK-NEXT:    st1d { z1.d }, p0, [x9, #1, mul vl]
; CHECK-NEXT:    st1d { z0.d }, p0, [sp]
; CHECK-NEXT:    str x0, [x9, x8, lsl #3]
; CHECK-NEXT:    ld1d { z1.d }, p0/z, [x9, #1, mul vl]
; CHECK-NEXT:    ld1d { z2.d }, p0/z, [x9, #2, mul vl]
; CHECK-NEXT:    ld1d { z3.d }, p0/z, [x9, #3, mul vl]
; CHECK-NEXT:    ld1d { z0.d }, p0/z, [sp]
; CHECK-NEXT:    addvl sp, sp, #4
; CHECK-NEXT:    ldr x29, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT:    ret
  %ins = insertelement <vscale x 8 x i64> %a, i64 %elt, i64 %idx
  ret <vscale x 8 x i64> %ins
}

; INSERT VECTOR ELT, CONSTANT IDX

define <vscale x 4 x i16> @promote_insert_4i16(<vscale x 4 x i16> %a, i16 %elt) {
; CHECK-LABEL: promote_insert_4i16:
; CHECK:       // %bb.0:
; CHECK-NEXT:    mov w8, #5
; CHECK-NEXT:    index z1.s, #0, #1
; CHECK-NEXT:    mov z2.s, w8
; CHECK-NEXT:    ptrue p0.s
; CHECK-NEXT:    cmpeq p0.s, p0/z, z1.s, z2.s
; CHECK-NEXT:    mov z0.s, p0/m, w0
; CHECK-NEXT:    ret
  %ins = insertelement <vscale x 4 x i16> %a, i16 %elt, i64 5
  ret <vscale x 4 x i16> %ins
}

; In this test, the index is small enough that we know it will be in the
; low half of the vector and there is no need to go through the stack as
; done in the remaining tests
define <vscale x 32 x i8> @split_insert_32i8(<vscale x 32 x i8> %a, i8 %elt) {
; CHECK-LABEL: split_insert_32i8:
; CHECK:       // %bb.0:
; CHECK-NEXT:    mov w8, #3
; CHECK-NEXT:    index z2.b, #0, #1
; CHECK-NEXT:    mov z3.b, w8
; CHECK-NEXT:    ptrue p0.b
; CHECK-NEXT:    cmpeq p0.b, p0/z, z2.b, z3.b
; CHECK-NEXT:    mov z0.b, p0/m, w0
; CHECK-NEXT:    ret
  %ins = insertelement <vscale x 32 x i8> %a, i8 %elt, i64 3
  ret <vscale x 32 x i8> %ins
}

define <vscale x 32 x i16> @split_insert_32i16(<vscale x 32 x i16> %a, i16 %elt) {
; CHECK-LABEL: split_insert_32i16:
; CHECK:       // %bb.0:
; CHECK-NEXT:    str x29, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT:    addvl sp, sp, #-4
; CHECK-NEXT:    .cfi_escape 0x0f, 0x0c, 0x8f, 0x00, 0x11, 0x10, 0x22, 0x11, 0x20, 0x92, 0x2e, 0x00, 0x1e, 0x22 // sp + 16 + 32 * VG
; CHECK-NEXT:    .cfi_offset w29, -16
; CHECK-NEXT:    rdvl x10, #2
; CHECK-NEXT:    sub x10, x10, #1 // =1
; CHECK-NEXT:    mov w9, #128
; CHECK-NEXT:    cmp x10, #128 // =128
; CHECK-NEXT:    ptrue p0.h
; CHECK-NEXT:    mov x8, sp
; CHECK-NEXT:    csel x9, x10, x9, lo
; CHECK-NEXT:    st1h { z3.h }, p0, [x8, #3, mul vl]
; CHECK-NEXT:    st1h { z2.h }, p0, [x8, #2, mul vl]
; CHECK-NEXT:    st1h { z1.h }, p0, [x8, #1, mul vl]
; CHECK-NEXT:    st1h { z0.h }, p0, [sp]
; CHECK-NEXT:    strh w0, [x8, x9, lsl #1]
; CHECK-NEXT:    ld1h { z1.h }, p0/z, [x8, #1, mul vl]
; CHECK-NEXT:    ld1h { z2.h }, p0/z, [x8, #2, mul vl]
; CHECK-NEXT:    ld1h { z3.h }, p0/z, [x8, #3, mul vl]
; CHECK-NEXT:    ld1h { z0.h }, p0/z, [sp]
; CHECK-NEXT:    addvl sp, sp, #4
; CHECK-NEXT:    ldr x29, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT:    ret
  %ins = insertelement <vscale x 32 x i16> %a, i16 %elt, i64 128
  ret <vscale x 32 x i16> %ins
}

define <vscale x 8 x i32> @split_insert_8i32(<vscale x 8 x i32> %a, i32 %elt) {
; CHECK-LABEL: split_insert_8i32:
; CHECK:       // %bb.0:
; CHECK-NEXT:    str x29, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT:    addvl sp, sp, #-2
; CHECK-NEXT:    .cfi_escape 0x0f, 0x0c, 0x8f, 0x00, 0x11, 0x10, 0x22, 0x11, 0x10, 0x92, 0x2e, 0x00, 0x1e, 0x22 // sp + 16 + 16 * VG
; CHECK-NEXT:    .cfi_offset w29, -16
; CHECK-NEXT:    mov w9, #16960
; CHECK-NEXT:    cnth x10
; CHECK-NEXT:    movk w9, #15, lsl #16
; CHECK-NEXT:    sub x10, x10, #1 // =1
; CHECK-NEXT:    cmp x10, x9
; CHECK-NEXT:    ptrue p0.s
; CHECK-NEXT:    mov x8, sp
; CHECK-NEXT:    csel x9, x10, x9, lo
; CHECK-NEXT:    st1w { z1.s }, p0, [x8, #1, mul vl]
; CHECK-NEXT:    st1w { z0.s }, p0, [sp]
; CHECK-NEXT:    str w0, [x8, x9, lsl #2]
; CHECK-NEXT:    ld1w { z1.s }, p0/z, [x8, #1, mul vl]
; CHECK-NEXT:    ld1w { z0.s }, p0/z, [sp]
; CHECK-NEXT:    addvl sp, sp, #2
; CHECK-NEXT:    ldr x29, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT:    ret
  %ins = insertelement <vscale x 8 x i32> %a, i32 %elt, i64 1000000
  ret <vscale x 8 x i32> %ins
}