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Remove the DefinitelyInitializedPlaces analysis. #133326

Merged
merged 1 commit into from
Nov 27, 2024
Merged

Remove the DefinitelyInitializedPlaces analysis. #133326

merged 1 commit into from
Nov 27, 2024

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nnethercote
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Its only use is in the tests/ui/mir-dataflow/def_inits-1.rs where it is tested via rustc_peek_definite_init.

Also, it's probably buggy. It's supposed to be the inverse of MaybeUninitializedPlaces, and it mostly is, except that apply_terminator_effect is a little different, and apply_switch_int_edge_effects is missing. Unlike MaybeUninitializedPlaces, which is used extensively in borrow checking, any bugs in DefinitelyInitializedPlaces are easy to overlook because it is only used in one small test.

This commit removes the analysis. It also removes
rustc_peek_definite_init, Dual and MeetSemiLattice, all of which are no longer needed.

r? @cjgillot

@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Nov 22, 2024
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@nnethercote
Remove the DefinitelyInitializedPlaces analysis.
ae9ac0e 
Its only use is in the `tests/ui/mir-dataflow/def_inits-1.rs` where it
is tested via `rustc_peek_definite_init`.

Also, it's probably buggy. It's supposed to be the inverse of
`MaybeUninitializedPlaces`, and it mostly is, except that
`apply_terminator_effect` is a little different, and
`apply_switch_int_edge_effects` is missing. Unlike
`MaybeUninitializedPlaces`, which is used extensively in borrow
checking, any bugs in `DefinitelyInitializedPlaces` are easy to overlook
because it is only used in one small test.

This commit removes the analysis. It also removes
`rustc_peek_definite_init`, `Dual` and `MeetSemiLattice`, all of which
are no longer needed.
@nnethercote nnethercote force-pushed the rm-DefinitelyInitializedPlaces branch from ed65f0d to ae9ac0e Compare November 22, 2024 06:02
@cjgillot
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@bors r+ rollup

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bors commented Nov 25, 2024

📌 Commit ae9ac0e has been approved by cjgillot

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Nov 25, 2024
jhpratt added a commit to jhpratt/rust that referenced this pull request Nov 26, 2024
@jhpratt
Rollup merge of rust-lang#133326 - nnethercote:rm-DefinitelyInitializ…
3e681e9 
…edPlaces, r=cjgillot

Remove the `DefinitelyInitializedPlaces` analysis.

Its only use is in the `tests/ui/mir-dataflow/def_inits-1.rs` where it is tested via `rustc_peek_definite_init`.

Also, it's probably buggy. It's supposed to be the inverse of `MaybeUninitializedPlaces`, and it mostly is, except that `apply_terminator_effect` is a little different, and `apply_switch_int_edge_effects` is missing. Unlike `MaybeUninitializedPlaces`, which is used extensively in borrow checking, any bugs in `DefinitelyInitializedPlaces` are easy to overlook because it is only used in one small test.

This commit removes the analysis. It also removes
`rustc_peek_definite_init`, `Dual` and `MeetSemiLattice`, all of which are no longer needed.

r? `@cjgillot`
@jhpratt jhpratt mentioned this pull request Nov 26, 2024
Closed
bors added a commit to rust-lang-ci/rust that referenced this pull request Nov 26, 2024
@bors
Auto merge of rust-lang#133490 - jhpratt:rollup-f4ao5vz, r=jhpratt
33c3a5e 
Rollup of 28 pull requests

Successful merges:

 - rust-lang#132605 (CI: increase timeout from 4h to 6h)
 - rust-lang#133042 (btree: add `{Entry,VacantEntry}::insert_entry`)
 - rust-lang#133070 (Lexer tweaks)
 - rust-lang#133136 (Support ranges in `<[T]>::get_many_mut()`)
 - rust-lang#133140 (Inline ExprPrecedence::order into Expr::precedence)
 - rust-lang#133248 (CI: split x86_64-msvc-ext job)
 - rust-lang#133282 (Shorten the `MaybeUninit` `Debug` implementation)
 - rust-lang#133304 (Revert diagnostics hack to fix ICE 132920)
 - rust-lang#133326 (Remove the `DefinitelyInitializedPlaces` analysis.)
 - rust-lang#133362 (No need to re-sort existential preds in relate impl)
 - rust-lang#133367 (Simplify array length mismatch error reporting (to not try to turn consts into target usizes))
 - rust-lang#133394 (Bail on more errors in dyn ty lowering)
 - rust-lang#133410 (target check_consistency: ensure target feature string makes some basic sense)
 - rust-lang#133411 (the emscripten OS no longer exists on non-wasm targets)
 - rust-lang#133419 (Added a doc test for std::path::strip_prefix)
 - rust-lang#133430 (Tweak parameter mismatch explanation to not say `{unknown}`)
 - rust-lang#133435 (miri: disable test_downgrade_observe test on macOS)
 - rust-lang#133443 (Remove dead code stemming from the old effects desugaring (II))
 - rust-lang#133449 (std: expose `const_io_error!` as `const_error!`)
 - rust-lang#133450 (remove "onur-ozkan" from  users_on_vacation)
 - rust-lang#133454 (Update test expectations to accept LLVM 'initializes' attribute)
 - rust-lang#133458 (Fix `Result` and `Option` not getting a jump to def link generated)
 - rust-lang#133462 (Use ReadCache for archive reading in bootstrap)
 - rust-lang#133464 (std::thread: avoid leading whitespace in some panic messages)
 - rust-lang#133467 (tests: Add recursive associated type bound regression tests)
 - rust-lang#133470 (Cleanup: delete `//@ pretty-expanded` directive)
 - rust-lang#133473 (tests: Add regression test for recursive enum with Cow and Clone)
 - rust-lang#133481 (Disable `avr-rjmp-offset` on Windows for now)

r? `@ghost`
`@rustbot` modify labels: rollup
bors added a commit to rust-lang-ci/rust that referenced this pull request Nov 26, 2024
@bors
Auto merge of rust-lang#133490 - jhpratt:rollup-f4ao5vz, r=jhpratt
199955e 
Rollup of 28 pull requests

Successful merges:

 - rust-lang#132605 (CI: increase timeout from 4h to 6h)
 - rust-lang#133042 (btree: add `{Entry,VacantEntry}::insert_entry`)
 - rust-lang#133070 (Lexer tweaks)
 - rust-lang#133136 (Support ranges in `<[T]>::get_many_mut()`)
 - rust-lang#133140 (Inline ExprPrecedence::order into Expr::precedence)
 - rust-lang#133248 (CI: split x86_64-msvc-ext job)
 - rust-lang#133282 (Shorten the `MaybeUninit` `Debug` implementation)
 - rust-lang#133304 (Revert diagnostics hack to fix ICE 132920)
 - rust-lang#133326 (Remove the `DefinitelyInitializedPlaces` analysis.)
 - rust-lang#133362 (No need to re-sort existential preds in relate impl)
 - rust-lang#133367 (Simplify array length mismatch error reporting (to not try to turn consts into target usizes))
 - rust-lang#133394 (Bail on more errors in dyn ty lowering)
 - rust-lang#133410 (target check_consistency: ensure target feature string makes some basic sense)
 - rust-lang#133411 (the emscripten OS no longer exists on non-wasm targets)
 - rust-lang#133419 (Added a doc test for std::path::strip_prefix)
 - rust-lang#133430 (Tweak parameter mismatch explanation to not say `{unknown}`)
 - rust-lang#133435 (miri: disable test_downgrade_observe test on macOS)
 - rust-lang#133443 (Remove dead code stemming from the old effects desugaring (II))
 - rust-lang#133449 (std: expose `const_io_error!` as `const_error!`)
 - rust-lang#133450 (remove "onur-ozkan" from  users_on_vacation)
 - rust-lang#133454 (Update test expectations to accept LLVM 'initializes' attribute)
 - rust-lang#133458 (Fix `Result` and `Option` not getting a jump to def link generated)
 - rust-lang#133462 (Use ReadCache for archive reading in bootstrap)
 - rust-lang#133464 (std::thread: avoid leading whitespace in some panic messages)
 - rust-lang#133467 (tests: Add recursive associated type bound regression tests)
 - rust-lang#133470 (Cleanup: delete `//@ pretty-expanded` directive)
 - rust-lang#133473 (tests: Add regression test for recursive enum with Cow and Clone)
 - rust-lang#133481 (Disable `avr-rjmp-offset` on Windows for now)

r? `@ghost`
`@rustbot` modify labels: rollup
bors added a commit to rust-lang-ci/rust that referenced this pull request Nov 26, 2024
@bors
Auto merge of rust-lang#133490 - jhpratt:rollup-f4ao5vz, r=jhpratt
6ce8a37 
Rollup of 28 pull requests

Successful merges:

 - rust-lang#132605 (CI: increase timeout from 4h to 6h)
 - rust-lang#133042 (btree: add `{Entry,VacantEntry}::insert_entry`)
 - rust-lang#133070 (Lexer tweaks)
 - rust-lang#133136 (Support ranges in `<[T]>::get_many_mut()`)
 - rust-lang#133140 (Inline ExprPrecedence::order into Expr::precedence)
 - rust-lang#133248 (CI: split x86_64-msvc-ext job)
 - rust-lang#133282 (Shorten the `MaybeUninit` `Debug` implementation)
 - rust-lang#133304 (Revert diagnostics hack to fix ICE 132920)
 - rust-lang#133326 (Remove the `DefinitelyInitializedPlaces` analysis.)
 - rust-lang#133362 (No need to re-sort existential preds in relate impl)
 - rust-lang#133367 (Simplify array length mismatch error reporting (to not try to turn consts into target usizes))
 - rust-lang#133394 (Bail on more errors in dyn ty lowering)
 - rust-lang#133410 (target check_consistency: ensure target feature string makes some basic sense)
 - rust-lang#133411 (the emscripten OS no longer exists on non-wasm targets)
 - rust-lang#133419 (Added a doc test for std::path::strip_prefix)
 - rust-lang#133430 (Tweak parameter mismatch explanation to not say `{unknown}`)
 - rust-lang#133435 (miri: disable test_downgrade_observe test on macOS)
 - rust-lang#133443 (Remove dead code stemming from the old effects desugaring (II))
 - rust-lang#133449 (std: expose `const_io_error!` as `const_error!`)
 - rust-lang#133450 (remove "onur-ozkan" from  users_on_vacation)
 - rust-lang#133454 (Update test expectations to accept LLVM 'initializes' attribute)
 - rust-lang#133458 (Fix `Result` and `Option` not getting a jump to def link generated)
 - rust-lang#133462 (Use ReadCache for archive reading in bootstrap)
 - rust-lang#133464 (std::thread: avoid leading whitespace in some panic messages)
 - rust-lang#133467 (tests: Add recursive associated type bound regression tests)
 - rust-lang#133470 (Cleanup: delete `//@ pretty-expanded` directive)
 - rust-lang#133473 (tests: Add regression test for recursive enum with Cow and Clone)
 - rust-lang#133481 (Disable `avr-rjmp-offset` on Windows for now)

r? `@ghost`
`@rustbot` modify labels: rollup
@compiler-errors compiler-errors mentioned this pull request Nov 26, 2024
Merged
bors added a commit to rust-lang-ci/rust that referenced this pull request Nov 26, 2024
@bors
Auto merge of rust-lang#133505 - compiler-errors:rollup-xjp8hdi, r=co…
dd2837e 
…mpiler-errors

Rollup of 12 pull requests

Successful merges:

 - rust-lang#133042 (btree: add `{Entry,VacantEntry}::insert_entry`)
 - rust-lang#133070 (Lexer tweaks)
 - rust-lang#133136 (Support ranges in `<[T]>::get_many_mut()`)
 - rust-lang#133140 (Inline ExprPrecedence::order into Expr::precedence)
 - rust-lang#133155 (Yet more `rustc_mir_dataflow` cleanups)
 - rust-lang#133282 (Shorten the `MaybeUninit` `Debug` implementation)
 - rust-lang#133326 (Remove the `DefinitelyInitializedPlaces` analysis.)
 - rust-lang#133362 (No need to re-sort existential preds in relate impl)
 - rust-lang#133367 (Simplify array length mismatch error reporting (to not try to turn consts into target usizes))
 - rust-lang#133394 (Bail on more errors in dyn ty lowering)
 - rust-lang#133410 (target check_consistency: ensure target feature string makes some basic sense)
 - rust-lang#133435 (miri: disable test_downgrade_observe test on macOS)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 3e1a089 into rust-lang:master Nov 27, 2024
6 checks passed
@rustbot rustbot added this to the 1.85.0 milestone Nov 27, 2024
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Nov 27, 2024
@rust-timer
Unrolled build for rust-lang#133326
a31b4e2 
Rollup merge of rust-lang#133326 - nnethercote:rm-DefinitelyInitializedPlaces, r=cjgillot

Remove the `DefinitelyInitializedPlaces` analysis.

Its only use is in the `tests/ui/mir-dataflow/def_inits-1.rs` where it is tested via `rustc_peek_definite_init`.

Also, it's probably buggy. It's supposed to be the inverse of `MaybeUninitializedPlaces`, and it mostly is, except that `apply_terminator_effect` is a little different, and `apply_switch_int_edge_effects` is missing. Unlike `MaybeUninitializedPlaces`, which is used extensively in borrow checking, any bugs in `DefinitelyInitializedPlaces` are easy to overlook because it is only used in one small test.

This commit removes the analysis. It also removes
`rustc_peek_definite_init`, `Dual` and `MeetSemiLattice`, all of which are no longer needed.

r? ``@cjgillot``
@nnethercote nnethercote deleted the rm-DefinitelyInitializedPlaces branch November 27, 2024 02:36
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