Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
; RUN: opt < %s -passes=instcombine ; This testcase should not send the instcombiner into an infinite loop! define i32 @test(i32 %X) { %Y = srem i32 %X, 0 ; <i32> [#uses=1] ret i32 %Y }