1; RUN: opt < %s -sccp -S | not grep sub
2
3define void @test3(i32, i32) {
4	add i32 0, 0		; <i32>:3 [#uses=0]
5	sub i32 0, 4		; <i32>:4 [#uses=0]
6	ret void
7}
8
9