Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
; RUN: llc -mattr=avrtiny -O0 < %s -march=avr | FileCheck %s define i16 @reg_copy16(i16, i16 %a) { ; CHECK-LABEL: reg_copy16 ; CHECK: mov r24, r22 ; CHECK: mov r25, r23 ret i16 %a }