; RUN: llc < %s -mtriple=arm64-apple-ios -aarch64-enable-atomic-cfg-tidy=0 | FileCheck %s
; rdar://11935841

define void @t1() nounwind ssp {
entry:
; CHECK-LABEL: t1:
; CHECK-NOT: add x{{[0-9]+}}, sp
; CHECK: stp x28, x27, [sp, #-16]!
  %v = alloca [288 x i32], align 4
  unreachable
}