# RUN: llc -mtriple=aarch64-linux-gnu -run-pass=greedy %s -o - | FileCheck %s
# RUN: llc -mtriple=aarch64-linux-gnu -start-before=greedy -stop-after=aarch64-expand-pseudo %s -o - | FileCheck %s --check-prefix=EXPAND
--- |
  ; ModuleID = '<stdin>'
  source_filename = "<stdin>"
  target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
  target triple = "aarch64--linux-gnu"

  define aarch64_sve_vector_pcs void @spills_fills_stack_id_ppr() #0 { entry: unreachable }
  define aarch64_sve_vector_pcs void @spills_fills_stack_id_zpr() #0 { entry: unreachable }
  define aarch64_sve_vector_pcs void @spills_fills_stack_id_zpr2() #0 { entry: unreachable }
  define aarch64_sve_vector_pcs void @spills_fills_stack_id_zpr3() #0 { entry: unreachable }
  define aarch64_sve_vector_pcs void @spills_fills_stack_id_zpr4() #0 { entry: unreachable }

  attributes #0 = { nounwind "target-features"="+sve" }

...
---
name: spills_fills_stack_id_ppr
tracksRegLiveness: true
registers:
  - { id: 0, class: ppr }
stack:
liveins:
  - { reg: '$p0', virtual-reg: '%0' }
body:             |
  bb.0.entry:
    liveins: $p0

    ; CHECK-LABEL: name: spills_fills_stack_id_ppr
    ; CHECK: stack:
    ; CHECK:      - { id: 0, name: '', type: spill-slot, offset: 0, size: 2, alignment: 2
    ; CHECK-NEXT:     stack-id: sve-vec, callee-saved-register: ''

    ; EXPAND-LABEL: name: spills_fills_stack_id_ppr
    ; EXPAND: STR_PXI $p0, $sp, 7
    ; EXPAND: $p0 = LDR_PXI $sp, 7

    %0:ppr = COPY $p0

    $p0 = IMPLICIT_DEF
    $p1 = IMPLICIT_DEF
    $p2 = IMPLICIT_DEF
    $p3 = IMPLICIT_DEF
    $p4 = IMPLICIT_DEF
    $p5 = IMPLICIT_DEF
    $p6 = IMPLICIT_DEF
    $p7 = IMPLICIT_DEF
    $p8 = IMPLICIT_DEF
    $p9 = IMPLICIT_DEF
    $p10 = IMPLICIT_DEF
    $p11 = IMPLICIT_DEF
    $p12 = IMPLICIT_DEF
    $p13 = IMPLICIT_DEF
    $p14 = IMPLICIT_DEF
    $p15 = IMPLICIT_DEF

    $p0 = COPY %0
    RET_ReallyLR
...
---
name: spills_fills_stack_id_zpr
tracksRegLiveness: true
registers:
  - { id: 0, class: zpr }
stack:
liveins:
  - { reg: '$z0', virtual-reg: '%0' }
body:             |
  bb.0.entry:
    liveins: $z0

    ; CHECK-LABEL: name: spills_fills_stack_id_zpr
    ; CHECK: stack:
    ; CHECK:      - { id: 0, name: '', type: spill-slot, offset: 0, size: 16, alignment: 16
    ; CHECK-NEXT:     stack-id: sve-vec, callee-saved-register: ''

    ; EXPAND-LABEL: name: spills_fills_stack_id_zpr
    ; EXPAND: STR_ZXI $z0, $sp, 0
    ; EXPAND: $z0 = LDR_ZXI $sp, 0

    %0:zpr = COPY $z0

    $z0_z1_z2_z3     = IMPLICIT_DEF
    $z4_z5_z6_z7     = IMPLICIT_DEF
    $z8_z9_z10_z11   = IMPLICIT_DEF
    $z12_z13_z14_z15 = IMPLICIT_DEF
    $z16_z17_z18_z19 = IMPLICIT_DEF
    $z20_z21_z22_z23 = IMPLICIT_DEF
    $z24_z25_z26_z27 = IMPLICIT_DEF
    $z28_z29_z30_z31 = IMPLICIT_DEF

    $z0 = COPY %0
    RET_ReallyLR
...
---
name: spills_fills_stack_id_zpr2
tracksRegLiveness: true
registers:
  - { id: 0, class: zpr2 }
stack:
liveins:
  - { reg: '$z0_z1', virtual-reg: '%0' }
body:             |
  bb.0.entry:
    liveins: $z0_z1

    ; CHECK-LABEL: name: spills_fills_stack_id_zpr2
    ; CHECK: stack:
    ; CHECK:      - { id: 0, name: '', type: spill-slot, offset: 0, size: 32, alignment: 16
    ; CHECK-NEXT:     stack-id: sve-vec

    ; EXPAND-LABEL: name: spills_fills_stack_id_zpr2
    ; EXPAND: STR_ZXI $z0, $sp, 0
    ; EXPAND: STR_ZXI $z1, $sp, 1
    ; EXPAND: $z0 = LDR_ZXI $sp, 0
    ; EXPAND: $z1 = LDR_ZXI $sp, 1

    %0:zpr2 = COPY $z0_z1

    $z0_z1_z2_z3     = IMPLICIT_DEF
    $z4_z5_z6_z7     = IMPLICIT_DEF
    $z8_z9_z10_z11   = IMPLICIT_DEF
    $z12_z13_z14_z15 = IMPLICIT_DEF
    $z16_z17_z18_z19 = IMPLICIT_DEF
    $z20_z21_z22_z23 = IMPLICIT_DEF
    $z24_z25_z26_z27 = IMPLICIT_DEF
    $z28_z29_z30_z31 = IMPLICIT_DEF

    $z0_z1 = COPY %0
    RET_ReallyLR
...
---
name: spills_fills_stack_id_zpr3
tracksRegLiveness: true
registers:
  - { id: 0, class: zpr3 }
stack:
liveins:
  - { reg: '$z0_z1_z2', virtual-reg: '%0' }
body:             |
  bb.0.entry:
    liveins: $z0_z1_z2

    ; CHECK-LABEL: name: spills_fills_stack_id_zpr3
    ; CHECK: stack:
    ; CHECK:      - { id: 0, name: '', type: spill-slot, offset: 0, size: 48, alignment: 16
    ; CHECK-NEXT:     stack-id: sve-vec

    ; EXPAND-LABEL: name: spills_fills_stack_id_zpr3
    ; EXPAND: STR_ZXI $z0, $sp, 0
    ; EXPAND: STR_ZXI $z1, $sp, 1
    ; EXPAND: STR_ZXI $z2, $sp, 2
    ; EXPAND: $z0 = LDR_ZXI $sp, 0
    ; EXPAND: $z1 = LDR_ZXI $sp, 1
    ; EXPAND: $z2 = LDR_ZXI $sp, 2

    %0:zpr3 = COPY $z0_z1_z2

    $z0_z1_z2_z3     = IMPLICIT_DEF
    $z4_z5_z6_z7     = IMPLICIT_DEF
    $z8_z9_z10_z11   = IMPLICIT_DEF
    $z12_z13_z14_z15 = IMPLICIT_DEF
    $z16_z17_z18_z19 = IMPLICIT_DEF
    $z20_z21_z22_z23 = IMPLICIT_DEF
    $z24_z25_z26_z27 = IMPLICIT_DEF
    $z28_z29_z30_z31 = IMPLICIT_DEF

    $z0_z1_z2 = COPY %0
    RET_ReallyLR
...
---
name: spills_fills_stack_id_zpr4
tracksRegLiveness: true
registers:
  - { id: 0, class: zpr4 }
stack:
liveins:
  - { reg: '$z0_z1_z2_z3', virtual-reg: '%0' }
body:             |
  bb.0.entry:
    liveins: $z0_z1_z2_z3

    ; CHECK-LABEL: name: spills_fills_stack_id_zpr4
    ; CHECK: stack:
    ; CHECK:      - { id: 0, name: '', type: spill-slot, offset: 0, size: 64, alignment: 16
    ; CHECK-NEXT:     stack-id: sve-vec

    ; EXPAND-LABEL: name: spills_fills_stack_id_zpr4
    ; EXPAND: STR_ZXI $z0, $sp, 0
    ; EXPAND: STR_ZXI $z1, $sp, 1
    ; EXPAND: STR_ZXI $z2, $sp, 2
    ; EXPAND: STR_ZXI $z3, $sp, 3
    ; EXPAND: $z0 = LDR_ZXI $sp, 0
    ; EXPAND: $z1 = LDR_ZXI $sp, 1
    ; EXPAND: $z2 = LDR_ZXI $sp, 2
    ; EXPAND: $z3 = LDR_ZXI $sp, 3

    %0:zpr4 = COPY $z0_z1_z2_z3

    $z0_z1_z2_z3     = IMPLICIT_DEF
    $z4_z5_z6_z7     = IMPLICIT_DEF
    $z8_z9_z10_z11   = IMPLICIT_DEF
    $z12_z13_z14_z15 = IMPLICIT_DEF
    $z16_z17_z18_z19 = IMPLICIT_DEF
    $z20_z21_z22_z23 = IMPLICIT_DEF
    $z24_z25_z26_z27 = IMPLICIT_DEF
    $z28_z29_z30_z31 = IMPLICIT_DEF

    $z0_z1_z2_z3 = COPY %0
    RET_ReallyLR
...