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use TypingEnv when no infcx is available

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the behavior of the type system not only depends on the current
assumptions, but also the currentnphase of the compiler. This is
mostly necessary as we need to decide whether and how to reveal
opaque types. We track this via the `TypingMode`.
This commit is contained in:
lcnr
2024-11-15 13:53:31 +01:00
parent bf6adec108
commit 9cba14b95b
240 changed files with 1739 additions and 1340 deletions
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13
compiler/rustc_codegen_ssa/src/base.rs
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@@ -21,7 +21,7 @@ use rustc_middle::middle::{exported_symbols, lang_items};
use rustc_middle::mir::BinOp;
use rustc_middle::mir::mono::{CodegenUnit, CodegenUnitNameBuilder, MonoItem};
use rustc_middle::query::Providers;
use rustc_middle::ty::layout::{HasTyCtxt, LayoutOf, TyAndLayout};
use rustc_middle::ty::layout::{HasTyCtxt, HasTypingEnv, LayoutOf, TyAndLayout};
use rustc_middle::ty::{self, Instance, Ty, TyCtxt, TypingMode};
use rustc_session::Session;
use rustc_session::config::{self, CrateType, EntryFnType, OptLevel, OutputType};
@@ -165,7 +165,7 @@ fn unsized_info<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
) -> Bx::Value {
let cx = bx.cx();
let (source, target) =
cx.tcx().struct_lockstep_tails_for_codegen(source, target, bx.param_env());
cx.tcx().struct_lockstep_tails_for_codegen(source, target, bx.typing_env());
match (source.kind(), target.kind()) {
(&ty::Array(_, len), &ty::Slice(_)) => cx.const_usize(
len.try_to_target_usize(cx.tcx()).expect("expected monomorphic const in codegen"),
@@ -466,10 +466,9 @@ pub fn maybe_create_entry_wrapper<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
// late-bound regions, since late-bound
// regions must appear in the argument
// listing.
let main_ret_ty = cx.tcx().normalize_erasing_regions(
ty::ParamEnv::reveal_all(),
main_ret_ty.no_bound_vars().unwrap(),
);
let main_ret_ty = cx
.tcx()
.normalize_erasing_regions(cx.typing_env(), main_ret_ty.no_bound_vars().unwrap());
let Some(llfn) = cx.declare_c_main(llfty) else {
// FIXME: We should be smart and show a better diagnostic here.
@@ -495,7 +494,7 @@ pub fn maybe_create_entry_wrapper<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
let start_def_id = cx.tcx().require_lang_item(LangItem::Start, None);
let start_instance = ty::Instance::expect_resolve(
cx.tcx(),
ty::ParamEnv::reveal_all(),
cx.typing_env(),
start_def_id,
cx.tcx().mk_args(&[main_ret_ty.into()]),
DUMMY_SP,