1 ; RUN: opt < %s -sccp -S | not grep sub 2 3 define 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