// 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::) { // 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::) { // 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::) { // 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::) { // 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::) { // 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 } }