Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
; RUN: llc < %s -mtriple=i686-- ; PR1259 define void @test() { %tmp2 = call i32 asm "...", "=r,~{dirflag},~{fpsr},~{flags},~{dx},~{cx},~{ax}"( ) unreachable }