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1; RUN: opt < %s -passes=adce,simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | grep call2; RUN: opt < %s -passes=adce,simplifycfg -adce-remove-loops -simplifycfg-require-and-preserve-domtree=1 -S | grep call3 4declare void @exit(i32)5 6define i32 @main(i32 %argc) {7 %C = icmp eq i32 %argc, 1 ; <i1> [#uses=2]8 br i1 %C, label %Cond, label %Done9 10Cond: ; preds = %011 br i1 %C, label %Loop, label %Done12 13Loop: ; preds = %Loop, %Cond14 call void @exit( i32 0 )15 br label %Loop16 17Done: ; preds = %Cond, %018 ret i32 119}20 21