Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
; RUN: opt < %s -passes=sccp -S | not grep xor define i11129 @test1() { %B = shl i11129 1, 11128 %C = sub i11129 %B, 1 %D = xor i11129 %B, %C ret i11129 %D }