1; RUN: opt < %s -loop-simplify 2; RUN: opt < %s -passes=loop-simplify 3 4; This function should get a preheader inserted before BB3, that is jumped 5; to by BB1 & BB2 6; 7 8define void @test() { 9 br i1 true, label %BB1, label %BB2 10BB1: ; preds = %0 11 br label %BB3 12BB2: ; preds = %0 13 br label %BB3 14BB3: ; preds = %BB3, %BB2, %BB1 15 br label %BB3 16} 17 18