third_party/llvm-7.0/llvm/test/CodeGen/AArch64/ldst-opt-aa.mir

# RUN: llc -mtriple=aarch64--linux-gnu -run-pass=aarch64-ldst-opt %s -verify-machineinstrs -o - | FileCheck %s
--- |
  define void @ldr_str_aa(i32* noalias nocapture %x, i32* noalias nocapture readonly %y) {
  entry:
    %0 = load i32, i32* %y, align 4
    store i32 %0, i32* %x, align 4
    %arrayidx2 = getelementptr inbounds i32, i32* %y, i32 1
    %1 = load i32, i32* %arrayidx2, align 4
    %arrayidx3 = getelementptr inbounds i32, i32* %x, i32 1
    store i32 %1, i32* %arrayidx3, align 4
    ret void
  }

...
---
# CHECK-LABEL: name: ldr_str_aa
# CHECK: $w8, $w9 = LDPWi $x1, 0
# CHECK: STPWi $w8, $w9, $x0, 0
name:            ldr_str_aa
tracksRegLiveness: true
body:             |
  bb.0.entry:
    liveins: $x0, $x1

    $w8 = LDRWui $x1, 0 :: (load 4 from %ir.y)
    STRWui killed $w8, $x0, 0 :: (store 4 into %ir.x)
    $w9 = LDRWui killed $x1, 1 :: (load 4 from %ir.arrayidx2)
    STRWui killed $w9, killed $x0, 1 :: (store 4 into %ir.arrayidx3)
    RET undef $lr