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Auto merge of rust-lang#119053 - matthiaskrgr:rollup-hky3ld3, r=matth…
…iaskrgr Rollup of 4 pull requests Successful merges: - rust-lang#118880 (More expressions correctly are marked to end with curly braces) - rust-lang#118928 (fix: Overlapping spans in delimited meta-vars) - rust-lang#119022 (Remove unnecessary constness from ProjectionCandidate) - rust-lang#119052 (Avoid overflow in GVN constant indexing.) r? `@ghost` `@rustbot` modify labels: rollup
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104 changes: 104 additions & 0 deletions
104
tests/mir-opt/gvn.constant_index_overflow.GVN.panic-abort.diff
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| - // MIR for `constant_index_overflow` before GVN | ||
| + // MIR for `constant_index_overflow` after GVN | ||
|
|
||
| fn constant_index_overflow(_1: &[T]) -> () { | ||
| debug x => _1; | ||
| let mut _0: (); | ||
| let _2: usize; | ||
| let mut _4: bool; | ||
| let mut _5: usize; | ||
| let mut _6: usize; | ||
| let mut _7: &[T]; | ||
| let _8: usize; | ||
| let mut _9: usize; | ||
| let mut _10: bool; | ||
| let _11: usize; | ||
| let mut _12: usize; | ||
| let mut _13: bool; | ||
| let mut _14: T; | ||
| scope 1 { | ||
| debug a => _2; | ||
| let _3: T; | ||
| scope 2 { | ||
| debug b => _3; | ||
| } | ||
| } | ||
|
|
||
| bb0: { | ||
| - StorageLive(_2); | ||
| - _2 = const _ as usize (IntToInt); | ||
| + nop; | ||
| + _2 = const usize::MAX; | ||
| StorageLive(_3); | ||
| StorageLive(_4); | ||
| StorageLive(_5); | ||
| - _5 = _2; | ||
| + _5 = const usize::MAX; | ||
| StorageLive(_6); | ||
| StorageLive(_7); | ||
| _7 = &(*_1); | ||
| _6 = core::slice::<impl [T]>::len(move _7) -> [return: bb1, unwind unreachable]; | ||
| } | ||
|
|
||
| bb1: { | ||
| StorageDead(_7); | ||
| - _4 = Lt(move _5, move _6); | ||
| + _4 = Lt(const usize::MAX, move _6); | ||
| switchInt(move _4) -> [0: bb4, otherwise: bb2]; | ||
| } | ||
|
|
||
| bb2: { | ||
| StorageDead(_6); | ||
| StorageDead(_5); | ||
| StorageLive(_8); | ||
| - _8 = _2; | ||
| + _8 = const usize::MAX; | ||
| _9 = Len((*_1)); | ||
| - _10 = Lt(_8, _9); | ||
| - assert(move _10, "index out of bounds: the length is {} but the index is {}", move _9, _8) -> [success: bb3, unwind unreachable]; | ||
| + _10 = Lt(const usize::MAX, _9); | ||
| + assert(move _10, "index out of bounds: the length is {} but the index is {}", move _9, const usize::MAX) -> [success: bb3, unwind unreachable]; | ||
| } | ||
|
|
||
| bb3: { | ||
| - _3 = (*_1)[_8]; | ||
| + _3 = (*_1)[_2]; | ||
| StorageDead(_8); | ||
| goto -> bb6; | ||
| } | ||
|
|
||
| bb4: { | ||
| StorageDead(_6); | ||
| StorageDead(_5); | ||
| StorageLive(_11); | ||
| _11 = const 0_usize; | ||
| _12 = Len((*_1)); | ||
| - _13 = Lt(_11, _12); | ||
| - assert(move _13, "index out of bounds: the length is {} but the index is {}", move _12, _11) -> [success: bb5, unwind unreachable]; | ||
| + _13 = Lt(const 0_usize, _12); | ||
| + assert(move _13, "index out of bounds: the length is {} but the index is {}", move _12, const 0_usize) -> [success: bb5, unwind unreachable]; | ||
| } | ||
|
|
||
| bb5: { | ||
| - _3 = (*_1)[_11]; | ||
| + _3 = (*_1)[0 of 1]; | ||
| StorageDead(_11); | ||
| goto -> bb6; | ||
| } | ||
|
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| bb6: { | ||
| StorageDead(_4); | ||
| StorageLive(_14); | ||
| _14 = _3; | ||
| _0 = opaque::<T>(move _14) -> [return: bb7, unwind unreachable]; | ||
| } | ||
|
|
||
| bb7: { | ||
| StorageDead(_14); | ||
| StorageDead(_3); | ||
| - StorageDead(_2); | ||
| + nop; | ||
| return; | ||
| } | ||
| } | ||
|
|
104 changes: 104 additions & 0 deletions
104
tests/mir-opt/gvn.constant_index_overflow.GVN.panic-unwind.diff
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| - // MIR for `constant_index_overflow` before GVN | ||
| + // MIR for `constant_index_overflow` after GVN | ||
|
|
||
| fn constant_index_overflow(_1: &[T]) -> () { | ||
| debug x => _1; | ||
| let mut _0: (); | ||
| let _2: usize; | ||
| let mut _4: bool; | ||
| let mut _5: usize; | ||
| let mut _6: usize; | ||
| let mut _7: &[T]; | ||
| let _8: usize; | ||
| let mut _9: usize; | ||
| let mut _10: bool; | ||
| let _11: usize; | ||
| let mut _12: usize; | ||
| let mut _13: bool; | ||
| let mut _14: T; | ||
| scope 1 { | ||
| debug a => _2; | ||
| let _3: T; | ||
| scope 2 { | ||
| debug b => _3; | ||
| } | ||
| } | ||
|
|
||
| bb0: { | ||
| - StorageLive(_2); | ||
| - _2 = const _ as usize (IntToInt); | ||
| + nop; | ||
| + _2 = const usize::MAX; | ||
| StorageLive(_3); | ||
| StorageLive(_4); | ||
| StorageLive(_5); | ||
| - _5 = _2; | ||
| + _5 = const usize::MAX; | ||
| StorageLive(_6); | ||
| StorageLive(_7); | ||
| _7 = &(*_1); | ||
| _6 = core::slice::<impl [T]>::len(move _7) -> [return: bb1, unwind continue]; | ||
| } | ||
|
|
||
| bb1: { | ||
| StorageDead(_7); | ||
| - _4 = Lt(move _5, move _6); | ||
| + _4 = Lt(const usize::MAX, move _6); | ||
| switchInt(move _4) -> [0: bb4, otherwise: bb2]; | ||
| } | ||
|
|
||
| bb2: { | ||
| StorageDead(_6); | ||
| StorageDead(_5); | ||
| StorageLive(_8); | ||
| - _8 = _2; | ||
| + _8 = const usize::MAX; | ||
| _9 = Len((*_1)); | ||
| - _10 = Lt(_8, _9); | ||
| - assert(move _10, "index out of bounds: the length is {} but the index is {}", move _9, _8) -> [success: bb3, unwind continue]; | ||
| + _10 = Lt(const usize::MAX, _9); | ||
| + assert(move _10, "index out of bounds: the length is {} but the index is {}", move _9, const usize::MAX) -> [success: bb3, unwind continue]; | ||
| } | ||
|
|
||
| bb3: { | ||
| - _3 = (*_1)[_8]; | ||
| + _3 = (*_1)[_2]; | ||
| StorageDead(_8); | ||
| goto -> bb6; | ||
| } | ||
|
|
||
| bb4: { | ||
| StorageDead(_6); | ||
| StorageDead(_5); | ||
| StorageLive(_11); | ||
| _11 = const 0_usize; | ||
| _12 = Len((*_1)); | ||
| - _13 = Lt(_11, _12); | ||
| - assert(move _13, "index out of bounds: the length is {} but the index is {}", move _12, _11) -> [success: bb5, unwind continue]; | ||
| + _13 = Lt(const 0_usize, _12); | ||
| + assert(move _13, "index out of bounds: the length is {} but the index is {}", move _12, const 0_usize) -> [success: bb5, unwind continue]; | ||
| } | ||
|
|
||
| bb5: { | ||
| - _3 = (*_1)[_11]; | ||
| + _3 = (*_1)[0 of 1]; | ||
| StorageDead(_11); | ||
| goto -> bb6; | ||
| } | ||
|
|
||
| bb6: { | ||
| StorageDead(_4); | ||
| StorageLive(_14); | ||
| _14 = _3; | ||
| _0 = opaque::<T>(move _14) -> [return: bb7, unwind continue]; | ||
| } | ||
|
|
||
| bb7: { | ||
| StorageDead(_14); | ||
| StorageDead(_3); | ||
| - StorageDead(_2); | ||
| + nop; | ||
| return; | ||
| } | ||
| } | ||
|
|
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