// This test case tests the incremental compilation hash (ICH) implementation
// for `while` loops.

// The general pattern followed here is: Change one thing between rev1 and rev2
// and make sure that the hash has changed, then change nothing between rev2 and
// rev3 and make sure that the hash has not changed.

//@ revisions: bpass1 bpass2 bpass3 bpass4 bpass5 bpass6
//@ compile-flags: -Z query-dep-graph -O
//@ [bpass1]compile-flags: -Zincremental-ignore-spans
//@ [bpass2]compile-flags: -Zincremental-ignore-spans
//@ [bpass3]compile-flags: -Zincremental-ignore-spans
//@ ignore-backends: gcc
// FIXME(#62277): could be check-pass?

#![allow(warnings)]
#![feature(rustc_attrs)]
#![crate_type="rlib"]


// Change loop body
#[cfg(any(bpass1,bpass4))]
pub fn change_loop_body() {
    let mut _x = 0;
    while true {
        _x = 1;
        break;
    }
}

#[cfg(not(any(bpass1,bpass4)))]
#[rustc_clean(cfg="bpass2", except="hir_owner, optimized_mir")]
#[rustc_clean(cfg="bpass3")]
#[rustc_clean(cfg="bpass5", except="hir_owner, optimized_mir")]
#[rustc_clean(cfg="bpass6")]
pub fn change_loop_body() {
    let mut _x = 0;
    while true {
        _x = 2;
        break;
    }
}


// Change loop body
#[cfg(any(bpass1,bpass4))]
pub fn change_loop_condition() {
    let mut _x = 0;
    while true  {
        _x = 1;
        break;
    }
}

#[cfg(not(any(bpass1,bpass4)))]
#[rustc_clean(cfg="bpass2", except="hir_owner, optimized_mir")]
#[rustc_clean(cfg="bpass3")]
#[rustc_clean(cfg="bpass5", except="hir_owner, optimized_mir")]
#[rustc_clean(cfg="bpass6")]
pub fn change_loop_condition() {
    let mut _x = 0;
    while false {
        _x = 1;
        break;
    }
}


// Add break
#[cfg(any(bpass1,bpass4))]
pub fn add_break() {
    let mut _x = 0;
    while true {
        _x = 1;
        // ---
    }
}

#[cfg(not(any(bpass1,bpass4)))]
#[rustc_clean(cfg="bpass2", except="hir_owner, optimized_mir, typeck_root")]
#[rustc_clean(cfg="bpass3")]
#[rustc_clean(cfg="bpass5", except="hir_owner, optimized_mir, typeck_root")]
#[rustc_clean(cfg="bpass6")]
pub fn add_break() {
    let mut _x = 0;
    while true {
        _x = 1;
        break;
    }
}


// Add loop label
#[cfg(any(bpass1,bpass4))]
pub fn add_loop_label() {
    let mut _x = 0;
            while true {
        _x = 1;
        break;
    }
}

#[cfg(not(any(bpass1,bpass4)))]
#[rustc_clean(cfg="bpass2", except="hir_owner")]
#[rustc_clean(cfg="bpass3")]
#[rustc_clean(cfg="bpass5", except="hir_owner")]
#[rustc_clean(cfg="bpass6")]
pub fn add_loop_label() {
    let mut _x = 0;
    'label: while true {
        _x = 1;
        break;
    }
}


// Add loop label to break
#[cfg(any(bpass1,bpass4))]
pub fn add_loop_label_to_break() {
    let mut _x = 0;
    'label: while true {
        _x = 1;
        break       ;
    }
}

#[cfg(not(any(bpass1,bpass4)))]
#[rustc_clean(cfg="bpass2", except="hir_owner")]
#[rustc_clean(cfg="bpass3")]
#[rustc_clean(cfg="bpass5", except="hir_owner")]
#[rustc_clean(cfg="bpass6")]
pub fn add_loop_label_to_break() {
    let mut _x = 0;
    'label: while true {
        _x = 1;
        break 'label;
    }
}


// Change break label
#[cfg(any(bpass1,bpass4))]
pub fn change_break_label() {
    let mut _x = 0;
    'outer: while true {
        'inner: while true {
            _x = 1;
            break 'inner;
        }
    }
}

#[cfg(not(any(bpass1,bpass4)))]
#[rustc_clean(cfg="bpass2", except="hir_owner,optimized_mir")]
#[rustc_clean(cfg="bpass3")]
#[rustc_clean(cfg="bpass5", except="hir_owner,optimized_mir")]
#[rustc_clean(cfg="bpass6")]
pub fn change_break_label() {
    let mut _x = 0;
    'outer: while true {
        'inner: while true {
            _x = 1;
            break 'outer;
        }
    }
}


// Add loop label to continue
#[cfg(any(bpass1,bpass4))]
pub fn add_loop_label_to_continue() {
    let mut _x = 0;
    'label: while true {
        _x = 1;
        continue       ;
    }
}

#[cfg(not(any(bpass1,bpass4)))]
#[rustc_clean(cfg="bpass2", except="hir_owner")]
#[rustc_clean(cfg="bpass3")]
#[rustc_clean(cfg="bpass5", except="hir_owner")]
#[rustc_clean(cfg="bpass6")]
pub fn add_loop_label_to_continue() {
    let mut _x = 0;
    'label: while true {
        _x = 1;
        continue 'label;
    }
}


// Change continue label
#[cfg(any(bpass1,bpass4))]
pub fn change_continue_label() {
    let mut _x = 0;
    'outer: while true {
        'inner: while true {
            _x = 1;
            continue 'inner;
        }
    }
}

#[cfg(not(any(bpass1,bpass4)))]
#[rustc_clean(cfg="bpass2", except="hir_owner")]
#[rustc_clean(cfg="bpass3")]
#[rustc_clean(cfg="bpass5", except="hir_owner")]
#[rustc_clean(cfg="bpass6")]
pub fn change_continue_label() {
    let mut _x = 0;
    'outer: while true {
        'inner: while true {
            _x = 1;
            continue 'outer;
        }
    }
}


// Change continue to break
#[cfg(any(bpass1,bpass4))]
pub fn change_continue_to_break() {
    let mut _x = 0;
    while true {
        _x = 1;
        continue;
    }
}

#[cfg(not(any(bpass1,bpass4)))]
#[rustc_clean(cfg="bpass2", except="hir_owner, optimized_mir")]
#[rustc_clean(cfg="bpass3")]
#[rustc_clean(cfg="bpass5", except="hir_owner, optimized_mir")]
#[rustc_clean(cfg="bpass6")]
pub fn change_continue_to_break() {
    let mut _x = 0;
    while true {
        _x = 1;
        break   ;
    }
}