Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

check-dag-multi-prefix.txt
; RUN: FileCheck -check-prefix=A -check-prefix=B -input-file %s %s

add r10, r1, r2
add r11, r3, r4
mul r5, r10, r11

mul r11, r3, r4
mul r10, r1, r2
add r5, r10, r11

add r11, r3, r4
add r10, r1, r2
mul r5, r10, r11

; B-DAG: add [[REG1:r[0-9]+]], r1, r2
; B-DAG: add [[REG2:r[0-9]+]], r3, r4
; B: mul r5, [[REG1]], [[REG2]]

; A-DAG: mul [[REG1:r[0-9]+]], r1, r2
; A-DAG: mul [[REG2:r[0-9]+]], r3, r4
; A: add r5, [[REG1]], [[REG2]]

; B-DAG: add [[REG1:r[0-9]+]], r1, r2
; B-DAG: add [[REG2:r[0-9]+]], r3, r4
; B-NOT: xor
; B-DAG: mul r5, [[REG1]], [[REG2]]