bjoernager/rust
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Auto merge of #97012 - oli-obk:🦀_intrinsics, r=davidtwco

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Add a query for checking whether a function is an intrinsic.

work towards #93145

This will reduce churn when we add more ways to declare intrinsics

r? `@scottmcm`
This commit is contained in:
bors 2022-05-17 09:39:26 +00:00
commit 735efc0c70
17 changed files with 52 additions and 45 deletions
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8
compiler/rustc_ty_utils/src/instance.rs
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@ -5,7 +5,6 @@ use rustc_middle::traits::CodegenObligationError;
use rustc_middle::ty::subst::SubstsRef;
use rustc_middle::ty::{self, Binder, Instance, Ty, TyCtxt, TypeFoldable, TypeVisitor};
use rustc_span::{sym, DUMMY_SP};
use rustc_target::spec::abi::Abi;
use rustc_trait_selection::traits;
use traits::{translate_substs, Reveal};
@ -155,12 +154,7 @@ fn inner_resolve_instance<'tcx>(
let item_type = tcx.subst_and_normalize_erasing_regions(substs, param_env, ty);
let def = match *item_type.kind() {
ty::FnDef(..)
if {
let f = item_type.fn_sig(tcx);
f.abi() == Abi::RustIntrinsic || f.abi() == Abi::PlatformIntrinsic
} =>
{
ty::FnDef(def_id, ..) if tcx.is_intrinsic(def_id) => {
debug!(" => intrinsic");
ty::InstanceDef::Intrinsic(def.did)
}