rust/tests/mir-opt/pre-codegen/mem_replace.mem_replace.PreCodegen.after.mir

// MIR for `mem_replace` after PreCodegen

fn mem_replace(_1: &mut u32, _2: u32) -> u32 {
    debug r => _1;                       // in scope 0 at $DIR/mem_replace.rs:+0:20: +0:21
    debug v => _2;                       // in scope 0 at $DIR/mem_replace.rs:+0:33: +0:34
    let mut _0: u32;                     // return place in scope 0 at $DIR/mem_replace.rs:+0:44: +0:47
    scope 1 (inlined std::mem::replace::<u32>) { // at $DIR/mem_replace.rs:16:5: 16:28
        debug dest => _1;                // in scope 1 at $SRC_DIR/core/src/mem/mod.rs:LL:COL
        debug src => _2;                 // in scope 1 at $SRC_DIR/core/src/mem/mod.rs:LL:COL
        let mut _3: *const u32;          // in scope 1 at $SRC_DIR/core/src/mem/mod.rs:LL:COL
        let mut _4: *mut u32;            // in scope 1 at $SRC_DIR/core/src/mem/mod.rs:LL:COL
        scope 2 {
            scope 3 {
                debug result => _0;      // in scope 3 at $SRC_DIR/core/src/mem/mod.rs:LL:COL
                scope 7 (inlined std::ptr::write::<u32>) { // at $SRC_DIR/core/src/mem/mod.rs:LL:COL
                    debug dst => _4;     // in scope 7 at $SRC_DIR/core/src/ptr/mod.rs:LL:COL
                    debug src => _2;     // in scope 7 at $SRC_DIR/core/src/ptr/mod.rs:LL:COL
                    let mut _6: *mut u32; // in scope 7 at $SRC_DIR/core/src/intrinsics.rs:LL:COL
                    scope 8 {
                        scope 9 (inlined std::ptr::write::runtime::<u32>) { // at $SRC_DIR/core/src/intrinsics.rs:LL:COL
                            debug dst => _6; // in scope 9 at $SRC_DIR/core/src/intrinsics.rs:LL:COL
                        }
                    }
                }
            }
            scope 4 (inlined std::ptr::read::<u32>) { // at $SRC_DIR/core/src/mem/mod.rs:LL:COL
                debug src => _3;         // in scope 4 at $SRC_DIR/core/src/ptr/mod.rs:LL:COL
                let mut _5: *const u32;  // in scope 4 at $SRC_DIR/core/src/intrinsics.rs:LL:COL
                scope 5 {
                    scope 6 (inlined std::ptr::read::runtime::<u32>) { // at $SRC_DIR/core/src/intrinsics.rs:LL:COL
                        debug src => _5; // in scope 6 at $SRC_DIR/core/src/intrinsics.rs:LL:COL
                    }
                }
            }
        }
    }

    bb0: {
        StorageLive(_3);                 // scope 2 at $SRC_DIR/core/src/mem/mod.rs:LL:COL
        _3 = &raw const (*_1);           // scope 2 at $SRC_DIR/core/src/mem/mod.rs:LL:COL
        StorageLive(_5);                 // scope 2 at $SRC_DIR/core/src/mem/mod.rs:LL:COL
        _0 = (*_3);                      // scope 5 at $SRC_DIR/core/src/ptr/mod.rs:LL:COL
        StorageDead(_5);                 // scope 2 at $SRC_DIR/core/src/mem/mod.rs:LL:COL
        StorageDead(_3);                 // scope 2 at $SRC_DIR/core/src/mem/mod.rs:LL:COL
        StorageLive(_4);                 // scope 3 at $SRC_DIR/core/src/mem/mod.rs:LL:COL
        _4 = &raw mut (*_1);             // scope 3 at $SRC_DIR/core/src/mem/mod.rs:LL:COL
        StorageLive(_6);                 // scope 3 at $SRC_DIR/core/src/mem/mod.rs:LL:COL
        (*_4) = _2;                      // scope 8 at $SRC_DIR/core/src/ptr/mod.rs:LL:COL
        StorageDead(_6);                 // scope 3 at $SRC_DIR/core/src/mem/mod.rs:LL:COL
        StorageDead(_4);                 // scope 3 at $SRC_DIR/core/src/mem/mod.rs:LL:COL
        return;                          // scope 0 at $DIR/mem_replace.rs:+2:2: +2:2
    }
}