1; RUN: opt < %s -simplify-libcalls -disable-output 2; PR4645 3 4define i32 @main() { 5entry: 6 br label %if.then 7 8lor.lhs.false: ; preds = %while.body 9 br i1 undef, label %if.then, label %for.cond 10 11if.then: ; preds = %lor.lhs.false, %while.body 12 call void @exit(i32 1) 13 br label %for.cond 14 15for.cond: ; preds = %for.end, %if.then, %lor.lhs.false 16 %j.0 = phi i32 [ %inc47, %for.end ], [ 0, %if.then ], [ 0, %lor.lhs.false ] ; <i32> [#uses=1] 17 unreachable 18 19for.end: ; preds = %for.cond20 20 %inc47 = add i32 %j.0, 1 ; <i32> [#uses=1] 21 br label %for.cond 22} 23 24declare void @exit(i32) 25