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1; RUN: opt < %s -passes=adce,simplifycfg -simplifycfg-require-and-preserve-domtree=1 | llvm-dis2; RUN: opt < %s -passes=adce | llvm-dis3 4define i32 @Test(i32 %A, i32 %B) {5BB1:6 br label %BB47 8BB2: ; No predecessors!9 br label %BB310 11BB3: ; preds = %BB4, %BB212 %ret = phi i32 [ %X, %BB4 ], [ %B, %BB2 ] ; <i32> [#uses=1]13 ret i32 %ret14 15BB4: ; preds = %BB116 %X = phi i32 [ %A, %BB1 ] ; <i32> [#uses=1]17 br label %BB318}19