test/Transforms/BlockPlacement/basictest.ll

; RUN: llvm-as < %s | opt -block-placement -disable-output -print

define i32 @test() {
        br i1 true, label %X, label %Y

A:              ; preds = %Y, %X
        ret i32 0

X:              ; preds = %0
        br label %A

Y:              ; preds = %0
        br label %A
}