xref: /aosp_15_r20/external/llvm/test/CodeGen/MIR/AArch64/stack-object-local-offset.mir (revision 9880d6810fe72a1726cb53787c6711e909410d58)

# RUN: llc -mtriple=aarch64-none-linux-gnu -start-after machine-sink -stop-after machine-sink -o - %s | FileCheck %s

--- |
  @var = global i64 0
  @local_addr = global i64* null

  define void @stack_local() {
  entry:
    %local_var = alloca i64
    %val = load i64, i64* @var
    store i64 %val, i64* %local_var
    store i64* %local_var, i64** @local_addr
    ret void
  }
...
---
name:            stack_local
isSSA:           true
tracksRegLiveness: true
registers:
  - { id: 0, class: gpr64common }
  - { id: 1, class: gpr64 }
  - { id: 2, class: gpr64common }
  - { id: 3, class: gpr64common }
frameInfo:
  maxAlignment:    8
# CHECK-LABEL: stack_local
# CHECK: stack:
# CHECK-NEXT: { id: 0, name: local_var, offset: 0, size: 8, alignment: 8, local-offset: -8 }
stack:
  - { id: 0,name: local_var,offset: 0,size: 8,alignment: 8, local-offset: -8 }
body: |
  bb.0.entry:
    %0 = ADRP @var
    %1 = LDRXui killed %0, @var :: (load 8 from @var)
    STRXui killed %1, %stack.0.local_var, 0 :: (store 8 into %ir.local_var)
    %2 = ADRP @local_addr
    %3 = ADDXri %stack.0.local_var, 0, 0
    STRXui killed %3, killed %2, @local_addr :: (store 8 into @local_addr)
    RET_ReallyLR
...