Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
# RUN: not llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 %s 2>&1 | FileCheck %s # LLVM-MCA-BEGIN # LLVM-MCA-END # LLVM-MCA-BEGIN # LLVM-MCA-END # CHECK: error: no assembly instructions found.