bjoernager/rust
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Replace some u64 hashes with Hash64

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This commit is contained in:
Ben Kimock 2025-02-15 13:57:21 -05:00
parent fc147b4a81
commit 1d7cf0ff40
6 changed files with 25 additions and 15 deletions
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13
compiler/rustc_ty_utils/src/layout.rs
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@ -9,6 +9,7 @@ use rustc_abi::{
HasDataLayout, Layout, LayoutCalculatorError, LayoutData, Niche, ReprOptions, Scalar, Size,
StructKind, TagEncoding, VariantIdx, Variants, WrappingRange,
};
use rustc_data_structures::stable_hasher::Hash64;
use rustc_index::bit_set::DenseBitSet;
use rustc_index::{IndexSlice, IndexVec};
use rustc_middle::bug;
@ -380,7 +381,7 @@ fn layout_of_uncached<'tcx>(
size,
max_repr_align: None,
unadjusted_abi_align: element.align.abi,
randomization_seed: element.randomization_seed.wrapping_add(count),
randomization_seed: element.randomization_seed.wrapping_add(Hash64::new(count)),
})
}
ty::Slice(element) => {
@ -395,7 +396,9 @@ fn layout_of_uncached<'tcx>(
max_repr_align: None,
unadjusted_abi_align: element.align.abi,
// adding a randomly chosen value to distinguish slices
randomization_seed: element.randomization_seed.wrapping_add(0x2dcba99c39784102),
randomization_seed: element
.randomization_seed
.wrapping_add(Hash64::new(0x2dcba99c39784102)),
})
}
ty::Str => tcx.mk_layout(LayoutData {
@ -408,7 +411,7 @@ fn layout_of_uncached<'tcx>(
max_repr_align: None,
unadjusted_abi_align: dl.i8_align.abi,
// another random value
randomization_seed: 0xc1325f37d127be22,
randomization_seed: Hash64::new(0xc1325f37d127be22),
}),
// Odd unit types.
@ -585,7 +588,7 @@ fn layout_of_uncached<'tcx>(
align,
max_repr_align: None,
unadjusted_abi_align: align.abi,
randomization_seed: e_ly.randomization_seed.wrapping_add(e_len),
randomization_seed: e_ly.randomization_seed.wrapping_add(Hash64::new(e_len)),
})
}
@ -1051,7 +1054,7 @@ fn coroutine_layout<'tcx>(
};
// this is similar to how ReprOptions populates its field_shuffle_seed
let def_hash = tcx.def_path_hash(def_id).0.to_smaller_hash().as_u64();
let def_hash = tcx.def_path_hash(def_id).0.to_smaller_hash();
let layout = tcx.mk_layout(LayoutData {
variants: Variants::Multiple {