llvm/test/CodeGen/MIR/AArch64/hasstackframe.mir

# RUN: llc -run-pass=prolog-epilog -mtriple arm64-apple-ios -o - -simplify-mir \
# RUN:    -verify-machineinstrs %s | FileCheck %s

# CHECK:  hasStackFrame:   true

--- |

  define i32 @f(i32 %a, i32 %b) #0 {
    %local_array = alloca [10 x i32], align 4
    %temp = alloca i32, align 4
    store i32 %a, ptr %temp, align 4
    %loaded = load i32, ptr %temp, align 4
    %gep = getelementptr inbounds [10 x i32], ptr %local_array, i64 0, i64 5
    store i32 %loaded, ptr %gep, align 4
    %result = add i32 %loaded, %b
    %blah = call i32 @foo(i32 noundef %result)
    ret i32 %blah
  }

  declare i32 @foo(i32 noundef)

...
---
name:            f
frameInfo:
  adjustsStack:    true
stack:
  - { id: 0, name: local_array, size: 40, alignment: 4, local-offset: -40 }
  - { id: 1, name: temp, size: 4, alignment: 4, local-offset: -44 }
body:             |
  bb.0:
    liveins: $w0, $w1

    STRWui renamable $w0, %stack.1.temp, 0
    STRWui renamable $w0, %stack.0.local_array, 5
    ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp
    $w0 = ADDWrr killed renamable $w0, killed renamable $w1
    BL @foo, csr_darwin_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit $w0, implicit-def $sp, implicit-def $w0
    ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp
    RET_ReallyLR implicit $w0
...