Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
; RUN: llc -mtriple=x86_64-linux < %s | FileCheck %s ; RUN: llc -mtriple=x86_64-windows-msvc < %s | FileCheck %s define void @foo(ptr, ...) { ret void } ; CHECK-LABEL: {{^_?}}foo: ; CHECK-NOT: movq ; CHECK: retq