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rust/tests/mir-opt/reference_prop.reference_propagation_mut_ptr.ReferencePropagation.diff

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Implement SSA-based reference propagation.
2022-12-04 12:26:09 -06:00
- // MIR for `reference_propagation_mut_ptr` before ReferencePropagation
+ // MIR for `reference_propagation_mut_ptr` after ReferencePropagation
fn reference_propagation_mut_ptr(_1: *mut T, _2: *mut T) -> () {
debug single => _1; // in scope 0 at $DIR/reference_prop.rs:+0:43: +0:49
debug multiple => _2; // in scope 0 at $DIR/reference_prop.rs:+0:59: +0:71
let mut _0: (); // return place in scope 0 at $DIR/reference_prop.rs:+0:81: +0:81
let _3: (); // in scope 0 at $DIR/reference_prop.rs:+2:5: +6:6
let _7: (); // in scope 0 at $DIR/reference_prop.rs:+9:5: +16:6
let mut _11: *mut usize; // in scope 0 at $DIR/reference_prop.rs:+13:13: +13:24
let _13: (); // in scope 0 at $DIR/reference_prop.rs:+19:5: +24:6
let _18: (); // in scope 0 at $DIR/reference_prop.rs:+27:5: +32:6
let _23: (); // in scope 0 at $DIR/reference_prop.rs:+35:5: +40:6
let _27: (); // in scope 0 at $DIR/reference_prop.rs:+39:9: +39:18
let mut _28: *mut usize; // in scope 0 at $DIR/reference_prop.rs:+39:16: +39:17
let _29: (); // in scope 0 at $DIR/reference_prop.rs:+43:5: +53:6
let _36: (); // in scope 0 at $DIR/reference_prop.rs:+52:9: +52:19
let mut _37: *mut usize; // in scope 0 at $DIR/reference_prop.rs:+52:16: +52:18
let _38: (); // in scope 0 at $DIR/reference_prop.rs:+56:5: +59:6
let mut _42: *mut T; // in scope 0 at $DIR/reference_prop.rs:+64:20: +64:36
scope 1 {
let mut _4: usize; // in scope 1 at $DIR/reference_prop.rs:+3:13: +3:18
scope 2 {
debug a => _4; // in scope 2 at $DIR/reference_prop.rs:+3:13: +3:18
let _5: *mut usize; // in scope 2 at $DIR/reference_prop.rs:+4:13: +4:14
scope 3 {
debug b => _5; // in scope 3 at $DIR/reference_prop.rs:+4:13: +4:14
let _6: usize; // in scope 3 at $DIR/reference_prop.rs:+5:13: +5:14
scope 4 {
debug c => _6; // in scope 4 at $DIR/reference_prop.rs:+5:13: +5:14
}
}
}
}
scope 5 {
let mut _8: usize; // in scope 5 at $DIR/reference_prop.rs:+10:13: +10:18
scope 6 {
debug a => _8; // in scope 6 at $DIR/reference_prop.rs:+10:13: +10:18
let mut _9: usize; // in scope 6 at $DIR/reference_prop.rs:+11:13: +11:19
scope 7 {
debug a2 => _9; // in scope 7 at $DIR/reference_prop.rs:+11:13: +11:19
let mut _10: *mut usize; // in scope 7 at $DIR/reference_prop.rs:+12:13: +12:18
scope 8 {
debug b => _10; // in scope 8 at $DIR/reference_prop.rs:+12:13: +12:18
let _12: usize; // in scope 8 at $DIR/reference_prop.rs:+15:13: +15:14
scope 9 {
debug c => _12; // in scope 9 at $DIR/reference_prop.rs:+15:13: +15:14
}
}
}
}
}
scope 10 {
let mut _14: usize; // in scope 10 at $DIR/reference_prop.rs:+20:13: +20:18
scope 11 {
debug a => _14; // in scope 11 at $DIR/reference_prop.rs:+20:13: +20:18
let _15: *mut usize; // in scope 11 at $DIR/reference_prop.rs:+21:13: +21:14
scope 12 {
debug b => _15; // in scope 12 at $DIR/reference_prop.rs:+21:13: +21:14
let _16: &*mut usize; // in scope 12 at $DIR/reference_prop.rs:+22:13: +22:14
scope 13 {
debug d => _16; // in scope 13 at $DIR/reference_prop.rs:+22:13: +22:14
let _17: usize; // in scope 13 at $DIR/reference_prop.rs:+23:13: +23:14
scope 14 {
debug c => _17; // in scope 14 at $DIR/reference_prop.rs:+23:13: +23:14
}
}
}
}
}
scope 15 {
let mut _19: usize; // in scope 15 at $DIR/reference_prop.rs:+28:13: +28:18
scope 16 {
debug a => _19; // in scope 16 at $DIR/reference_prop.rs:+28:13: +28:18
let mut _20: *mut usize; // in scope 16 at $DIR/reference_prop.rs:+29:13: +29:18
scope 17 {
debug b => _20; // in scope 17 at $DIR/reference_prop.rs:+29:13: +29:18
let _21: &mut *mut usize; // in scope 17 at $DIR/reference_prop.rs:+30:13: +30:14
scope 18 {
debug d => _21; // in scope 18 at $DIR/reference_prop.rs:+30:13: +30:14
let _22: usize; // in scope 18 at $DIR/reference_prop.rs:+31:13: +31:14
scope 19 {
debug c => _22; // in scope 19 at $DIR/reference_prop.rs:+31:13: +31:14
}
}
}
}
}
scope 20 {
let mut _24: usize; // in scope 20 at $DIR/reference_prop.rs:+36:13: +36:18
scope 21 {
debug a => _24; // in scope 21 at $DIR/reference_prop.rs:+36:13: +36:18
let _25: *mut usize; // in scope 21 at $DIR/reference_prop.rs:+37:13: +37:14
scope 22 {
debug b => _25; // in scope 22 at $DIR/reference_prop.rs:+37:13: +37:14
let _26: usize; // in scope 22 at $DIR/reference_prop.rs:+38:13: +38:14
scope 23 {
debug c => _26; // in scope 23 at $DIR/reference_prop.rs:+38:13: +38:14
}
}
}
}
scope 24 {
let mut _30: usize; // in scope 24 at $DIR/reference_prop.rs:+44:13: +44:18
scope 25 {
debug a => _30; // in scope 25 at $DIR/reference_prop.rs:+44:13: +44:18
let _31: *mut usize; // in scope 25 at $DIR/reference_prop.rs:+45:13: +45:15
scope 26 {
debug b1 => _31; // in scope 26 at $DIR/reference_prop.rs:+45:13: +45:15
let _32: usize; // in scope 26 at $DIR/reference_prop.rs:+46:13: +46:14
scope 27 {
debug c => _32; // in scope 27 at $DIR/reference_prop.rs:+46:13: +46:14
let _33: *mut usize; // in scope 27 at $DIR/reference_prop.rs:+47:13: +47:15
scope 28 {
debug b2 => _33; // in scope 28 at $DIR/reference_prop.rs:+47:13: +47:15
let _34: usize; // in scope 28 at $DIR/reference_prop.rs:+48:13: +48:15
scope 29 {
debug c2 => _34; // in scope 29 at $DIR/reference_prop.rs:+48:13: +48:15
let _35: *mut usize; // in scope 29 at $DIR/reference_prop.rs:+49:13: +49:15
scope 30 {
debug b3 => _35; // in scope 30 at $DIR/reference_prop.rs:+49:13: +49:15
}
}
}
}
}
}
}
scope 31 {
let _39: *mut T; // in scope 31 at $DIR/reference_prop.rs:+57:13: +57:14
scope 32 {
debug a => _39; // in scope 32 at $DIR/reference_prop.rs:+57:13: +57:14
let _40: T; // in scope 32 at $DIR/reference_prop.rs:+58:13: +58:14
scope 33 {
debug b => _40; // in scope 33 at $DIR/reference_prop.rs:+58:13: +58:14
}
}
}
scope 34 {
let _41: *mut T; // in scope 34 at $DIR/reference_prop.rs:+63:13: +63:14
scope 35 {
debug a => _41; // in scope 35 at $DIR/reference_prop.rs:+63:13: +63:14
let _43: T; // in scope 35 at $DIR/reference_prop.rs:+65:13: +65:14
scope 36 {
debug b => _43; // in scope 36 at $DIR/reference_prop.rs:+65:13: +65:14
}
}
}
bb0: {
- StorageLive(_3); // scope 0 at $DIR/reference_prop.rs:+2:5: +6:6
StorageLive(_4); // scope 1 at $DIR/reference_prop.rs:+3:13: +3:18
_4 = const 5_usize; // scope 1 at $DIR/reference_prop.rs:+3:21: +3:28
StorageLive(_5); // scope 2 at $DIR/reference_prop.rs:+4:13: +4:14
_5 = &raw mut _4; // scope 2 at $DIR/reference_prop.rs:+4:17: +4:27
StorageLive(_6); // scope 3 at $DIR/reference_prop.rs:+5:13: +5:14
- _6 = (*_5); // scope 3 at $DIR/reference_prop.rs:+5:17: +5:19
- _3 = const (); // scope 1 at $DIR/reference_prop.rs:+2:5: +6:6
+ _6 = _4; // scope 3 at $DIR/reference_prop.rs:+5:17: +5:19
StorageDead(_6); // scope 3 at $DIR/reference_prop.rs:+6:5: +6:6
StorageDead(_5); // scope 2 at $DIR/reference_prop.rs:+6:5: +6:6
StorageDead(_4); // scope 1 at $DIR/reference_prop.rs:+6:5: +6:6
- StorageDead(_3); // scope 0 at $DIR/reference_prop.rs:+6:5: +6:6
- StorageLive(_7); // scope 0 at $DIR/reference_prop.rs:+9:5: +16:6
StorageLive(_8); // scope 5 at $DIR/reference_prop.rs:+10:13: +10:18
_8 = const 5_usize; // scope 5 at $DIR/reference_prop.rs:+10:21: +10:28
StorageLive(_9); // scope 6 at $DIR/reference_prop.rs:+11:13: +11:19
_9 = const 7_usize; // scope 6 at $DIR/reference_prop.rs:+11:22: +11:29
StorageLive(_10); // scope 7 at $DIR/reference_prop.rs:+12:13: +12:18
_10 = &raw mut _8; // scope 7 at $DIR/reference_prop.rs:+12:21: +12:31
StorageLive(_11); // scope 8 at $DIR/reference_prop.rs:+13:13: +13:24
_11 = &raw mut _9; // scope 8 at $DIR/reference_prop.rs:+13:13: +13:24
_10 = move _11; // scope 8 at $DIR/reference_prop.rs:+13:9: +13:24
StorageDead(_11); // scope 8 at $DIR/reference_prop.rs:+13:23: +13:24
StorageLive(_12); // scope 8 at $DIR/reference_prop.rs:+15:13: +15:14
_12 = (*_10); // scope 8 at $DIR/reference_prop.rs:+15:17: +15:19
- _7 = const (); // scope 5 at $DIR/reference_prop.rs:+9:5: +16:6
StorageDead(_12); // scope 8 at $DIR/reference_prop.rs:+16:5: +16:6
StorageDead(_10); // scope 7 at $DIR/reference_prop.rs:+16:5: +16:6
StorageDead(_9); // scope 6 at $DIR/reference_prop.rs:+16:5: +16:6
StorageDead(_8); // scope 5 at $DIR/reference_prop.rs:+16:5: +16:6
- StorageDead(_7); // scope 0 at $DIR/reference_prop.rs:+16:5: +16:6
- StorageLive(_13); // scope 0 at $DIR/reference_prop.rs:+19:5: +24:6
StorageLive(_14); // scope 10 at $DIR/reference_prop.rs:+20:13: +20:18
_14 = const 5_usize; // scope 10 at $DIR/reference_prop.rs:+20:21: +20:28
StorageLive(_15); // scope 11 at $DIR/reference_prop.rs:+21:13: +21:14
_15 = &raw mut _14; // scope 11 at $DIR/reference_prop.rs:+21:17: +21:27
StorageLive(_16); // scope 12 at $DIR/reference_prop.rs:+22:13: +22:14
_16 = &_15; // scope 12 at $DIR/reference_prop.rs:+22:17: +22:19
StorageLive(_17); // scope 13 at $DIR/reference_prop.rs:+23:13: +23:14
_17 = (*_15); // scope 13 at $DIR/reference_prop.rs:+23:17: +23:19
- _13 = const (); // scope 10 at $DIR/reference_prop.rs:+19:5: +24:6
StorageDead(_17); // scope 13 at $DIR/reference_prop.rs:+24:5: +24:6
StorageDead(_16); // scope 12 at $DIR/reference_prop.rs:+24:5: +24:6
StorageDead(_15); // scope 11 at $DIR/reference_prop.rs:+24:5: +24:6
StorageDead(_14); // scope 10 at $DIR/reference_prop.rs:+24:5: +24:6
- StorageDead(_13); // scope 0 at $DIR/reference_prop.rs:+24:5: +24:6
- StorageLive(_18); // scope 0 at $DIR/reference_prop.rs:+27:5: +32:6
StorageLive(_19); // scope 15 at $DIR/reference_prop.rs:+28:13: +28:18
_19 = const 5_usize; // scope 15 at $DIR/reference_prop.rs:+28:21: +28:28
StorageLive(_20); // scope 16 at $DIR/reference_prop.rs:+29:13: +29:18
_20 = &raw mut _19; // scope 16 at $DIR/reference_prop.rs:+29:21: +29:31
StorageLive(_21); // scope 17 at $DIR/reference_prop.rs:+30:13: +30:14
_21 = &mut _20; // scope 17 at $DIR/reference_prop.rs:+30:17: +30:23
StorageLive(_22); // scope 18 at $DIR/reference_prop.rs:+31:13: +31:14
_22 = (*_20); // scope 18 at $DIR/reference_prop.rs:+31:17: +31:19
- _18 = const (); // scope 15 at $DIR/reference_prop.rs:+27:5: +32:6
StorageDead(_22); // scope 18 at $DIR/reference_prop.rs:+32:5: +32:6
StorageDead(_21); // scope 17 at $DIR/reference_prop.rs:+32:5: +32:6
StorageDead(_20); // scope 16 at $DIR/reference_prop.rs:+32:5: +32:6
StorageDead(_19); // scope 15 at $DIR/reference_prop.rs:+32:5: +32:6
- StorageDead(_18); // scope 0 at $DIR/reference_prop.rs:+32:5: +32:6
- StorageLive(_23); // scope 0 at $DIR/reference_prop.rs:+35:5: +40:6
StorageLive(_24); // scope 20 at $DIR/reference_prop.rs:+36:13: +36:18
_24 = const 7_usize; // scope 20 at $DIR/reference_prop.rs:+36:21: +36:28
StorageLive(_25); // scope 21 at $DIR/reference_prop.rs:+37:13: +37:14
_25 = &raw mut _24; // scope 21 at $DIR/reference_prop.rs:+37:17: +37:27
StorageLive(_26); // scope 22 at $DIR/reference_prop.rs:+38:13: +38:14
_26 = (*_25); // scope 22 at $DIR/reference_prop.rs:+38:17: +38:19
StorageLive(_27); // scope 23 at $DIR/reference_prop.rs:+39:9: +39:18
StorageLive(_28); // scope 23 at $DIR/reference_prop.rs:+39:16: +39:17
_28 = _25; // scope 23 at $DIR/reference_prop.rs:+39:16: +39:17
_27 = opaque::<*mut usize>(move _28) -> bb1; // scope 23 at $DIR/reference_prop.rs:+39:9: +39:18
// mir::Constant
// + span: $DIR/reference_prop.rs:263:9: 263:15
// + literal: Const { ty: fn(*mut usize) {opaque::<*mut usize>}, val: Value(<ZST>) }
}
bb1: {
StorageDead(_28); // scope 23 at $DIR/reference_prop.rs:+39:17: +39:18
StorageDead(_27); // scope 23 at $DIR/reference_prop.rs:+39:18: +39:19
- _23 = const (); // scope 20 at $DIR/reference_prop.rs:+35:5: +40:6
StorageDead(_26); // scope 22 at $DIR/reference_prop.rs:+40:5: +40:6
StorageDead(_25); // scope 21 at $DIR/reference_prop.rs:+40:5: +40:6
StorageDead(_24); // scope 20 at $DIR/reference_prop.rs:+40:5: +40:6
- StorageDead(_23); // scope 0 at $DIR/reference_prop.rs:+40:5: +40:6
- StorageLive(_29); // scope 0 at $DIR/reference_prop.rs:+43:5: +53:6
StorageLive(_30); // scope 24 at $DIR/reference_prop.rs:+44:13: +44:18
_30 = const 7_usize; // scope 24 at $DIR/reference_prop.rs:+44:21: +44:28
StorageLive(_31); // scope 25 at $DIR/reference_prop.rs:+45:13: +45:15
_31 = &raw mut _30; // scope 25 at $DIR/reference_prop.rs:+45:18: +45:28
StorageLive(_32); // scope 26 at $DIR/reference_prop.rs:+46:13: +46:14
_32 = (*_31); // scope 26 at $DIR/reference_prop.rs:+46:17: +46:20
StorageLive(_33); // scope 27 at $DIR/reference_prop.rs:+47:13: +47:15
_33 = _31; // scope 27 at $DIR/reference_prop.rs:+47:18: +47:20
StorageLive(_34); // scope 28 at $DIR/reference_prop.rs:+48:13: +48:15
_34 = (*_33); // scope 28 at $DIR/reference_prop.rs:+48:18: +48:21
StorageLive(_35); // scope 29 at $DIR/reference_prop.rs:+49:13: +49:15
_35 = _33; // scope 29 at $DIR/reference_prop.rs:+49:18: +49:20
StorageLive(_36); // scope 30 at $DIR/reference_prop.rs:+52:9: +52:19
StorageLive(_37); // scope 30 at $DIR/reference_prop.rs:+52:16: +52:18
_37 = _35; // scope 30 at $DIR/reference_prop.rs:+52:16: +52:18
_36 = opaque::<*mut usize>(move _37) -> bb2; // scope 30 at $DIR/reference_prop.rs:+52:9: +52:19
// mir::Constant
// + span: $DIR/reference_prop.rs:276:9: 276:15
// + literal: Const { ty: fn(*mut usize) {opaque::<*mut usize>}, val: Value(<ZST>) }
}
bb2: {
StorageDead(_37); // scope 30 at $DIR/reference_prop.rs:+52:18: +52:19
StorageDead(_36); // scope 30 at $DIR/reference_prop.rs:+52:19: +52:20
- _29 = const (); // scope 24 at $DIR/reference_prop.rs:+43:5: +53:6
StorageDead(_35); // scope 29 at $DIR/reference_prop.rs:+53:5: +53:6
StorageDead(_34); // scope 28 at $DIR/reference_prop.rs:+53:5: +53:6
StorageDead(_33); // scope 27 at $DIR/reference_prop.rs:+53:5: +53:6
StorageDead(_32); // scope 26 at $DIR/reference_prop.rs:+53:5: +53:6
StorageDead(_31); // scope 25 at $DIR/reference_prop.rs:+53:5: +53:6
StorageDead(_30); // scope 24 at $DIR/reference_prop.rs:+53:5: +53:6
- StorageDead(_29); // scope 0 at $DIR/reference_prop.rs:+53:5: +53:6
- StorageLive(_38); // scope 0 at $DIR/reference_prop.rs:+56:5: +59:6
StorageLive(_39); // scope 31 at $DIR/reference_prop.rs:+57:13: +57:14
_39 = &raw mut (*_1); // scope 31 at $DIR/reference_prop.rs:+57:17: +57:33
StorageLive(_40); // scope 32 at $DIR/reference_prop.rs:+58:13: +58:14
- _40 = (*_39); // scope 32 at $DIR/reference_prop.rs:+58:17: +58:19
- _38 = const (); // scope 31 at $DIR/reference_prop.rs:+56:5: +59:6
+ _40 = (*_1); // scope 32 at $DIR/reference_prop.rs:+58:17: +58:19
StorageDead(_40); // scope 32 at $DIR/reference_prop.rs:+59:5: +59:6
StorageDead(_39); // scope 31 at $DIR/reference_prop.rs:+59:5: +59:6
- StorageDead(_38); // scope 0 at $DIR/reference_prop.rs:+59:5: +59:6
StorageLive(_41); // scope 34 at $DIR/reference_prop.rs:+63:13: +63:14
_41 = &raw mut (*_2); // scope 34 at $DIR/reference_prop.rs:+63:17: +63:35
StorageLive(_42); // scope 35 at $DIR/reference_prop.rs:+64:20: +64:36
_42 = &raw mut (*_1); // scope 35 at $DIR/reference_prop.rs:+64:20: +64:36
_2 = move _42; // scope 35 at $DIR/reference_prop.rs:+64:9: +64:36
StorageDead(_42); // scope 35 at $DIR/reference_prop.rs:+64:35: +64:36
StorageLive(_43); // scope 35 at $DIR/reference_prop.rs:+65:13: +65:14
_43 = (*_41); // scope 35 at $DIR/reference_prop.rs:+65:17: +65:19
_0 = const (); // scope 34 at $DIR/reference_prop.rs:+62:5: +66:6
StorageDead(_43); // scope 35 at $DIR/reference_prop.rs:+66:5: +66:6
StorageDead(_41); // scope 34 at $DIR/reference_prop.rs:+66:5: +66:6
return; // scope 0 at $DIR/reference_prop.rs:+67:2: +67:2
}
}
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