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Auto merge of #135760 - scottmcm:disjoint-bitor, r=WaffleLapkin

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Add `unchecked_disjoint_bitor` per ACP373

Following the names from libs-api in https://github.com/rust-lang/libs-team/issues/373#issuecomment-2085686057

Includes a fallback implementation so this doesn't have to update cg_clif or cg_gcc, and overrides it in cg_llvm to use `or disjoint`, which [is available in LLVM 18](https://releases.llvm.org/18.1.0/docs/LangRef.html#or-instruction) so hopefully we don't need any version checks.
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bors 2025-02-04 17:46:06 +00:00
commit 3f33b30e19
14 changed files with 205 additions and 4 deletions
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2
compiler/rustc_hir_analysis/src/check/intrinsic.rs
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@ -472,7 +472,7 @@ pub fn check_intrinsic_type(
vec![Ty::new_imm_ptr(tcx, param(0)), Ty::new_imm_ptr(tcx, param(0))],
tcx.types.usize,
),
sym::unchecked_div | sym::unchecked_rem | sym::exact_div => {
sym::unchecked_div | sym::unchecked_rem | sym::exact_div | sym::disjoint_bitor => {
(1, 0, vec![param(0), param(0)], param(0))
}
sym::unchecked_shl | sym::unchecked_shr => (2, 0, vec![param(0), param(1)], param(0)),