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Rollup merge of #126552 - fee1-dead-contrib:rmfx, r=compiler-errors

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Remove use of const traits (and `feature(effects)`) from stdlib

The current uses are already unsound because they are using non-const impls in const contexts. We can reintroduce them by reverting the commit in this PR, after #120639 lands.

Also, make `effects` an incomplete feature.

cc `@rust-lang/project-const-traits`
r? `@compiler-errors`
This commit is contained in:
Matthias Krüger 2024-06-22 19:33:56 +02:00 • committed by GitHub
commit dc9a08f535
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GPG key ID: B5690EEEBB952194
160 changed files with 1859 additions and 311 deletions
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24
compiler/rustc_hir_analysis/src/check/intrinsic.rs
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@ -429,17 +429,17 @@ pub fn check_intrinsic_type(
sym::ptr_guaranteed_cmp => (
1,
1,
0,
vec![Ty::new_imm_ptr(tcx, param(0)), Ty::new_imm_ptr(tcx, param(0))],
tcx.types.u8,
),
sym::const_allocate => {
(0, 1, vec![tcx.types.usize, tcx.types.usize], Ty::new_mut_ptr(tcx, tcx.types.u8))
(0, 0, vec![tcx.types.usize, tcx.types.usize], Ty::new_mut_ptr(tcx, tcx.types.u8))
}
sym::const_deallocate => (
0,
1,
0,
vec![Ty::new_mut_ptr(tcx, tcx.types.u8), tcx.types.usize, tcx.types.usize],
tcx.types.unit,
),
@ -478,16 +478,16 @@ pub fn check_intrinsic_type(
| sym::frem_algebraic => (1, 0, vec![param(0), param(0)], param(0)),
sym::float_to_int_unchecked => (2, 0, vec![param(0)], param(1)),
sym::assume => (0, 1, vec![tcx.types.bool], tcx.types.unit),
sym::likely => (0, 1, vec![tcx.types.bool], tcx.types.bool),
sym::unlikely => (0, 1, vec![tcx.types.bool], tcx.types.bool),
sym::assume => (0, 0, vec![tcx.types.bool], tcx.types.unit),
sym::likely => (0, 0, vec![tcx.types.bool], tcx.types.bool),
sym::unlikely => (0, 0, vec![tcx.types.bool], tcx.types.bool),
sym::read_via_copy => (1, 0, vec![Ty::new_imm_ptr(tcx, param(0))], param(0)),
sym::write_via_move => {
(1, 0, vec![Ty::new_mut_ptr(tcx, param(0)), param(0)], tcx.types.unit)
}
sym::typed_swap => (1, 1, vec![Ty::new_mut_ptr(tcx, param(0)); 2], tcx.types.unit),
sym::typed_swap => (1, 0, vec![Ty::new_mut_ptr(tcx, param(0)); 2], tcx.types.unit),
sym::discriminant_value => {
let assoc_items = tcx.associated_item_def_ids(
@ -566,9 +566,9 @@ pub fn check_intrinsic_type(
sym::black_box => (1, 0, vec![param(0)], param(0)),
sym::is_val_statically_known => (1, 1, vec![param(0)], tcx.types.bool),
sym::is_val_statically_known => (1, 0, vec![param(0)], tcx.types.bool),
sym::const_eval_select => (4, 1, vec![param(0), param(1), param(2)], param(3)),
sym::const_eval_select => (4, 0, vec![param(0), param(1), param(2)], param(3)),
sym::vtable_size | sym::vtable_align => {
(0, 0, vec![Ty::new_imm_ptr(tcx, tcx.types.unit)], tcx.types.usize)
@ -576,10 +576,10 @@ pub fn check_intrinsic_type(
// This type check is not particularly useful, but the `where` bounds
// on the definition in `core` do the heavy lifting for checking it.
sym::aggregate_raw_ptr => (3, 1, vec![param(1), param(2)], param(0)),
sym::ptr_metadata => (2, 1, vec![Ty::new_imm_ptr(tcx, param(0))], param(1)),
sym::aggregate_raw_ptr => (3, 0, vec![param(1), param(2)], param(0)),
sym::ptr_metadata => (2, 0, vec![Ty::new_imm_ptr(tcx, param(0))], param(1)),
sym::ub_checks => (0, 1, Vec::new(), tcx.types.bool),
sym::ub_checks => (0, 0, Vec::new(), tcx.types.bool),
sym::simd_eq
| sym::simd_ne