llvm/test/CodeGen/AVR/pseudo/COPY.mir

# RUN: llc -O0 %s -o - | FileCheck %s

--- |
  target triple = "avr--"

  define void @test_copy_nonoverlapping() {
  entry:
    ret void
  }

  define void @test_copy_overlapping() {
  entry:
    ret void
  }

  declare void @foo(i16 %0)
...

---
name: test_copy_nonoverlapping
tracksRegLiveness: true
body: |
  bb.0.entry:
    liveins: $r25r24

    ; CHECK-LABEL: test_copy_nonoverlapping:
    ; CHECK: mov r22, r24
    ; CHECK-NEXT: mov r23, r25

    $r23r22 = COPY $r25r24
    RCALLk @foo, implicit $r24r23
...

---
name: test_copy_overlapping
tracksRegLiveness: true
body: |
  bb.0.entry:
    liveins: $r24r23

    ; CHECK-LABEL: test_copy_overlapping:
    ; CHECK: mov r25, r24
    ; CHECK-NEXT: mov r24, r23

    $r25r24 = COPY $r24r23
    RCALLk @foo, implicit $r25r24
...