Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
# RUN: llvm-exegesis -mode=uops -opcode-name=POPCNT32rr 2>&1 | FileCheck %s CHECK: --- CHECK-NEXT: mode: uops CHECK-NEXT: key: CHECK-NEXT: instructions: CHECK-NEXT: - 'POPCNT32rr