1; This is a basic correctness check for constant propagation. The add 2; instruction should be eliminated. 3 4; RUN: opt < %s -passes=instsimplify,dce -S | not grep phi 5 6define i32 @test(i1 %B) { 7BB0: 8 br i1 %B, label %BB1, label %BB3 9 10BB1: ; preds = %BB0 11 br label %BB3 12 13BB3: ; preds = %BB1, %BB0 14 %Ret = phi i32 [ 1, %BB0 ], [ 1, %BB1 ] ; <i32> [#uses=1] 15 ret i32 %Ret 16} 17 18