1; RUN: opt -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -disable-output < %s 2 3@foo = external constant i32 4 5define i32 @f() { 6entry: 7 %and = and i64 ptrtoint (ptr @foo to i64), 15 8 %cmp = icmp eq i64 %and, 0 9 br i1 %cmp, label %if.end, label %if.then 10 11if.then: ; preds = %entry 12 br label %return 13 14if.end: ; preds = %entry 15 br label %return 16 17return: ; preds = %if.end, %if.then 18 %storemerge = phi i32 [ 1, %if.end ], [ 0, %if.then ] 19 ret i32 %storemerge 20} 21