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unstably allow constants to refer to statics and read from immutable statics

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This commit is contained in:
Ralf Jung
2024-01-05 12:18:11 +01:00
parent 5f40394baa
commit 4e77e368eb
50 changed files with 548 additions and 530 deletions
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4
compiler/rustc_const_eval/src/util/check_validity_requirement.rs
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@@ -2,7 +2,7 @@ use rustc_middle::ty::layout::{LayoutCx, LayoutError, LayoutOf, TyAndLayout, Val
use rustc_middle::ty::{ParamEnv, ParamEnvAnd, Ty, TyCtxt};
use rustc_target::abi::{Abi, FieldsShape, Scalar, Variants};
use crate::const_eval::{CanAccessStatics, CheckAlignment, CompileTimeInterpreter};
use crate::const_eval::{CanAccessMutGlobal, CheckAlignment, CompileTimeInterpreter};
use crate::interpret::{InterpCx, MemoryKind, OpTy};
/// Determines if this type permits "raw" initialization by just transmuting some memory into an
@@ -44,7 +44,7 @@ fn might_permit_raw_init_strict<'tcx>(
tcx: TyCtxt<'tcx>,
kind: ValidityRequirement,
) -> Result<bool, &'tcx LayoutError<'tcx>> {
let machine = CompileTimeInterpreter::new(CanAccessStatics::No, CheckAlignment::Error);
let machine = CompileTimeInterpreter::new(CanAccessMutGlobal::No, CheckAlignment::Error);
let mut cx = InterpCx::new(tcx, rustc_span::DUMMY_SP, ParamEnv::reveal_all(), machine);