Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

size-estimator-default.ll
; REQUIRES: !have_tf_api
; RUN: opt -passes='print<inliner-size-estimator>' -S < %S/Inputs/size-estimator.ll 2>&1 | FileCheck %s

; CHECK: [InlineSizeEstimatorAnalysis] size estimate for branches: None