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Rollup merge of rust-lang#117441 - cjgillot:diag-noassert, r=oli-obk,RalfJung Do not assert in op_to_const. `op_to_const` is used in `try_destructure_mir_constant_for_diagnostics`, which may encounter invalid constants created by optimizations and debugging. r? ``@oli-obk`` Fixes rust-lang#117368
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123 changes: 123 additions & 0 deletions
123
...s/mir-opt/pre-codegen/issue_117368_print_invalid_constant.main.GVN.32bit.panic-abort.diff
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,123 @@ | ||
| - // MIR for `main` before GVN | ||
| + // MIR for `main` after GVN | ||
|
|
||
| fn main() -> () { | ||
| let mut _0: (); | ||
| let _1: std::alloc::Layout; | ||
| let mut _2: std::option::Option<std::alloc::Layout>; | ||
| let mut _3: *mut u8; | ||
| let mut _4: *mut [u8]; | ||
| let mut _5: std::ptr::NonNull<[u8]>; | ||
| let mut _6: std::result::Result<std::ptr::NonNull<[u8]>, std::alloc::AllocError>; | ||
| let mut _7: &std::alloc::Global; | ||
| let mut _8: std::alloc::Layout; | ||
| scope 1 { | ||
| debug layout => _1; | ||
| let mut _9: &std::alloc::Global; | ||
| scope 2 { | ||
| debug ptr => _3; | ||
| } | ||
| scope 5 (inlined <std::alloc::Global as Allocator>::allocate) { | ||
| debug self => _9; | ||
| debug layout => _1; | ||
| } | ||
| scope 6 (inlined #[track_caller] Result::<NonNull<[u8]>, std::alloc::AllocError>::unwrap) { | ||
| debug self => _6; | ||
| let mut _12: isize; | ||
| let _13: std::alloc::AllocError; | ||
| let mut _14: !; | ||
| let _15: &str; | ||
| let mut _16: &dyn std::fmt::Debug; | ||
| let mut _17: &std::alloc::AllocError; | ||
| scope 7 { | ||
| debug t => _5; | ||
| } | ||
| scope 8 { | ||
| debug e => const std::alloc::AllocError; | ||
| } | ||
| } | ||
| scope 9 (inlined NonNull::<[u8]>::as_ptr) { | ||
| debug self => _5; | ||
| let mut _18: *const [u8]; | ||
| } | ||
| } | ||
| scope 3 (inlined #[track_caller] Option::<Layout>::unwrap) { | ||
| debug self => _2; | ||
| let mut _10: isize; | ||
| let mut _11: !; | ||
| scope 4 { | ||
| debug val => _1; | ||
| } | ||
| } | ||
|
|
||
| bb0: { | ||
| StorageLive(_2); | ||
| - _2 = Option::<Layout>::None; | ||
| + _2 = const Option::<Layout>::None; | ||
| StorageLive(_10); | ||
| _10 = const 0_isize; | ||
| switchInt(const 0_isize) -> [0: bb1, 1: bb3, otherwise: bb2]; | ||
| } | ||
|
|
||
| bb1: { | ||
| _11 = core::panicking::panic(const "called `Option::unwrap()` on a `None` value") -> unwind unreachable; | ||
| } | ||
|
|
||
| bb2: { | ||
| unreachable; | ||
| } | ||
|
|
||
| bb3: { | ||
| - _1 = move ((_2 as Some).0: std::alloc::Layout); | ||
| + _1 = const Layout {{ size: Indirect { alloc_id: ALLOC0, offset: Size(4 bytes) }: usize, align: std::ptr::Alignment(Scalar(0x00000000): ptr::alignment::AlignmentEnum32) }}; | ||
| StorageDead(_10); | ||
| StorageDead(_2); | ||
| StorageLive(_3); | ||
| StorageLive(_4); | ||
| StorageLive(_5); | ||
| StorageLive(_6); | ||
| _9 = const _; | ||
| - _6 = std::alloc::Global::alloc_impl(_9, _1, const false) -> [return: bb4, unwind unreachable]; | ||
| + _6 = std::alloc::Global::alloc_impl(const {ALLOC1: &std::alloc::Global}, const Layout {{ size: Indirect { alloc_id: ALLOC0, offset: Size(4 bytes) }: usize, align: std::ptr::Alignment(Scalar(0x00000000): ptr::alignment::AlignmentEnum32) }}, const false) -> [return: bb4, unwind unreachable]; | ||
| } | ||
|
|
||
| bb4: { | ||
| StorageLive(_12); | ||
| StorageLive(_15); | ||
| _12 = discriminant(_6); | ||
| switchInt(move _12) -> [0: bb6, 1: bb5, otherwise: bb2]; | ||
| } | ||
|
|
||
| bb5: { | ||
| _15 = const "called `Result::unwrap()` on an `Err` value"; | ||
| StorageLive(_16); | ||
| StorageLive(_17); | ||
| _17 = &_13; | ||
| _16 = move _17 as &dyn std::fmt::Debug (PointerCoercion(Unsize)); | ||
| StorageDead(_17); | ||
| _14 = result::unwrap_failed(move _15, move _16) -> unwind unreachable; | ||
| } | ||
|
|
||
| bb6: { | ||
| _5 = move ((_6 as Ok).0: std::ptr::NonNull<[u8]>); | ||
| StorageDead(_15); | ||
| StorageDead(_12); | ||
| StorageDead(_6); | ||
| StorageLive(_18); | ||
| _18 = (_5.0: *const [u8]); | ||
| _4 = move _18 as *mut [u8] (PtrToPtr); | ||
| StorageDead(_18); | ||
| StorageDead(_5); | ||
| _3 = move _4 as *mut u8 (PtrToPtr); | ||
| StorageDead(_4); | ||
| StorageDead(_3); | ||
| return; | ||
| } | ||
| } | ||
| + | ||
| + ALLOC0 (size: 8, align: 4) { | ||
| + 00 00 00 00 __ __ __ __ │ ....░░░░ | ||
| + } | ||
| + | ||
| + ALLOC1 (size: 0, align: 1) {} | ||
|
|
92 changes: 92 additions & 0 deletions
92
.../mir-opt/pre-codegen/issue_117368_print_invalid_constant.main.GVN.32bit.panic-unwind.diff
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| - // MIR for `main` before GVN | ||
| + // MIR for `main` after GVN | ||
|
|
||
| fn main() -> () { | ||
| let mut _0: (); | ||
| let _1: std::alloc::Layout; | ||
| let mut _2: std::option::Option<std::alloc::Layout>; | ||
| let mut _3: *mut u8; | ||
| let mut _4: *mut [u8]; | ||
| let mut _5: std::ptr::NonNull<[u8]>; | ||
| let mut _6: std::result::Result<std::ptr::NonNull<[u8]>, std::alloc::AllocError>; | ||
| let mut _7: &std::alloc::Global; | ||
| let mut _8: std::alloc::Layout; | ||
| scope 1 { | ||
| debug layout => _1; | ||
| let mut _9: &std::alloc::Global; | ||
| scope 2 { | ||
| debug ptr => _3; | ||
| } | ||
| scope 5 (inlined <std::alloc::Global as Allocator>::allocate) { | ||
| debug self => _9; | ||
| debug layout => _1; | ||
| } | ||
| scope 6 (inlined NonNull::<[u8]>::as_ptr) { | ||
| debug self => _5; | ||
| let mut _12: *const [u8]; | ||
| } | ||
| } | ||
| scope 3 (inlined #[track_caller] Option::<Layout>::unwrap) { | ||
| debug self => _2; | ||
| let mut _10: isize; | ||
| let mut _11: !; | ||
| scope 4 { | ||
| debug val => _1; | ||
| } | ||
| } | ||
|
|
||
| bb0: { | ||
| StorageLive(_2); | ||
| - _2 = Option::<Layout>::None; | ||
| + _2 = const Option::<Layout>::None; | ||
| StorageLive(_10); | ||
| _10 = const 0_isize; | ||
| switchInt(const 0_isize) -> [0: bb2, 1: bb4, otherwise: bb3]; | ||
| } | ||
|
|
||
| bb1: { | ||
| StorageDead(_6); | ||
| StorageLive(_12); | ||
| _12 = (_5.0: *const [u8]); | ||
| _4 = move _12 as *mut [u8] (PtrToPtr); | ||
| StorageDead(_12); | ||
| StorageDead(_5); | ||
| _3 = move _4 as *mut u8 (PtrToPtr); | ||
| StorageDead(_4); | ||
| StorageDead(_3); | ||
| return; | ||
| } | ||
|
|
||
| bb2: { | ||
| _11 = core::panicking::panic(const "called `Option::unwrap()` on a `None` value") -> unwind continue; | ||
| } | ||
|
|
||
| bb3: { | ||
| unreachable; | ||
| } | ||
|
|
||
| bb4: { | ||
| - _1 = move ((_2 as Some).0: std::alloc::Layout); | ||
| + _1 = const Layout {{ size: Indirect { alloc_id: ALLOC0, offset: Size(4 bytes) }: usize, align: std::ptr::Alignment(Scalar(0x00000000): ptr::alignment::AlignmentEnum32) }}; | ||
| StorageDead(_10); | ||
| StorageDead(_2); | ||
| StorageLive(_3); | ||
| StorageLive(_4); | ||
| StorageLive(_5); | ||
| StorageLive(_6); | ||
| _9 = const _; | ||
| - _6 = std::alloc::Global::alloc_impl(_9, _1, const false) -> [return: bb5, unwind continue]; | ||
| + _6 = std::alloc::Global::alloc_impl(const {ALLOC1: &std::alloc::Global}, const Layout {{ size: Indirect { alloc_id: ALLOC0, offset: Size(4 bytes) }: usize, align: std::ptr::Alignment(Scalar(0x00000000): ptr::alignment::AlignmentEnum32) }}, const false) -> [return: bb5, unwind continue]; | ||
| } | ||
|
|
||
| bb5: { | ||
| _5 = Result::<NonNull<[u8]>, std::alloc::AllocError>::unwrap(move _6) -> [return: bb1, unwind continue]; | ||
| } | ||
| } | ||
| + | ||
| + ALLOC0 (size: 8, align: 4) { | ||
| + 00 00 00 00 __ __ __ __ │ ....░░░░ | ||
| + } | ||
| + | ||
| + ALLOC1 (size: 0, align: 1) {} | ||
|
|
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