1; RUN: opt < %s -loop-simplify 2 3; This function should get a preheader inserted before BB3, that is jumped 4; to by BB1 & BB2 5; 6 7define void @test() { 8 br i1 true, label %BB1, label %BB2 9BB1: ; preds = %0 10 br label %BB3 11BB2: ; preds = %0 12 br label %BB3 13BB3: ; preds = %BB3, %BB2, %BB1 14 br label %BB3 15} 16 17