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Handle calls to upstream monomorphizations in compiler_builtins

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This commit is contained in:
Ben Kimock
2024-03-15 14:13:11 -04:00
parent 1ca424ca43
commit 5f4f2526b8
12 changed files with 95 additions and 9 deletions
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5
compiler/rustc_codegen_ssa/src/common.rs
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@@ -2,6 +2,7 @@
use rustc_hir::LangItem;
use rustc_middle::mir;
use rustc_middle::ty::Instance;
use rustc_middle::ty::{self, layout::TyAndLayout, Ty, TyCtxt};
use rustc_span::Span;
@@ -120,11 +121,11 @@ pub fn build_langcall<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
bx: &Bx,
span: Option<Span>,
li: LangItem,
) -> (Bx::FnAbiOfResult, Bx::Value) {
) -> (Bx::FnAbiOfResult, Bx::Value, Instance<'tcx>) {
let tcx = bx.tcx();
let def_id = tcx.require_lang_item(li, span);
let instance = ty::Instance::mono(tcx, def_id);
(bx.fn_abi_of_instance(instance, ty::List::empty()), bx.get_fn_addr(instance))
(bx.fn_abi_of_instance(instance, ty::List::empty()), bx.get_fn_addr(instance), instance)
}
// To avoid UB from LLVM, these two functions mask RHS with an