llvm/llvm/test/CodeGen/AArch64/framelayout-sve-scavengingslot.mir

# RUN: llc -mtriple=aarch64-none-linux-gnu -run-pass=prologepilog -mattr=+sve %s -o - | FileCheck %s
---
# This test verifies that the emergency scavenging slot is located near the SP/BP.
name: LateScavengingSlot
# CHECK-LABEL: name: LateScavengingSlot
# CHECK: bb.0:
# CHECK:      $sp = frame-setup SUBXri $sp, 8, 12
# CHECK-NEXT: $sp = frame-setup SUBXri $sp, 16, 0
# CHECK-NEXT: $sp = frame-setup ADDVL_XXI $sp, -1
# CHECK:      STRXui killed $[[SCRATCH:x[0-9]+]], $sp, 0
# CHECK-NEXT: $[[SCRATCH]] = ADDVL_XXI $fp, -1
# CHECK-NEXT: STRXui $x0, killed $[[SCRATCH]], 0
# CHECK: bb.1:
tracksRegLiveness: true
frameInfo:
  isFrameAddressTaken: true
stack:
  - { id: 0, name: '', size: 32761, alignment: 8 }
  - { id: 1, stack-id: scalable-vector, size: 16, alignment: 16 }
body: |
  bb.0:
    liveins: $x0, $x8
    STRXui $x0, %stack.1, 0
    B %bb.1
  bb.1:
    liveins: $x1, $x2, $x3, $x4, $x5, $x6, $x7, $x8, $x9, $x10, $x11, $x12, $x13, $x14, $x15, $x16, $x17, $x18, $x19, $x20, $x21, $x22, $x23, $x24, $x25, $x26, $x27, $x28, $lr
    RET_ReallyLR implicit $x19, implicit $x20, implicit $x21, implicit $x22, implicit $x23, implicit $x24, implicit $x25, implicit $x26, implicit $x27, implicit $x28, implicit $lr
...