repo stringlengths 6 65 | file_url stringlengths 81 311 | file_path stringlengths 6 227 | content stringlengths 0 32.8k | language stringclasses 1
value | license stringclasses 7
values | commit_sha stringlengths 40 40 | retrieved_at stringdate 2026-01-04 15:31:58 2026-01-04 20:25:31 | truncated bool 2
classes |
|---|---|---|---|---|---|---|---|---|
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/concurrency/weak_memory.rs | src/tools/miri/src/concurrency/weak_memory.rs | //! Implementation of C++11-consistent weak memory emulation using store buffers
//! based on Dynamic Race Detection for C++ ("the paper"):
//! <https://www.doc.ic.ac.uk/~afd/homepages/papers/pdfs/2017/POPL.pdf>
//!
//! This implementation will never generate weak memory behaviours forbidden by the C++11 model,
//! but... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/concurrency/thread.rs | src/tools/miri/src/concurrency/thread.rs | //! Implements threads.
use std::mem;
use std::sync::atomic::Ordering::Relaxed;
use std::task::Poll;
use std::time::{Duration, SystemTime};
use rand::seq::IteratorRandom;
use rustc_abi::ExternAbi;
use rustc_const_eval::CTRL_C_RECEIVED;
use rustc_data_structures::either::Either;
use rustc_data_structures::fx::FxHashMa... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | true |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/concurrency/genmc/config.rs | src/tools/miri/src/concurrency/genmc/config.rs | use genmc_sys::LogLevel;
use super::GenmcParams;
use crate::{IsolatedOp, MiriConfig, RejectOpWith};
/// Configuration for GenMC mode.
/// The `params` field is shared with the C++ side.
/// The remaining options are kept on the Rust side.
#[derive(Debug, Default, Clone)]
pub struct GenmcConfig {
/// Parameters se... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/concurrency/genmc/global_allocations.rs | src/tools/miri/src/concurrency/genmc/global_allocations.rs | use std::collections::hash_map::Entry;
use std::sync::RwLock;
use genmc_sys::{GENMC_GLOBAL_ADDRESSES_MASK, get_global_alloc_static_mask};
use rand::SeedableRng;
use rand::rngs::StdRng;
use rustc_const_eval::interpret::{AllocId, AllocInfo, InterpResult, interp_ok};
use rustc_data_structures::fx::FxHashMap;
use rustc_lo... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/concurrency/genmc/scheduling.rs | src/tools/miri/src/concurrency/genmc/scheduling.rs | use genmc_sys::{ActionKind, ExecutionState};
use rustc_data_structures::either::Either;
use rustc_middle::mir::TerminatorKind;
use rustc_middle::ty::{self, Ty};
use super::GenmcCtx;
use crate::{
InterpCx, InterpResult, MiriMachine, TerminationInfo, ThreadId, interp_ok, throw_machine_stop,
};
enum NextInstrKind {
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/concurrency/genmc/shims.rs | src/tools/miri/src/concurrency/genmc/shims.rs | use genmc_sys::AssumeType;
use rustc_middle::ty;
use tracing::debug;
use crate::concurrency::genmc::MAX_ACCESS_SIZE;
use crate::concurrency::thread::EvalContextExt as _;
use crate::*;
impl GenmcCtx {
/// Handle a user thread getting blocked.
/// This may happen due to an manual `assume` statement added by a u... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/concurrency/genmc/helper.rs | src/tools/miri/src/concurrency/genmc/helper.rs | use genmc_sys::{MemOrdering, RMWBinOp};
use rustc_abi::Size;
use rustc_const_eval::interpret::{InterpResult, interp_ok};
use rustc_middle::mir;
use rustc_middle::mir::interpret;
use rustc_middle::ty::ScalarInt;
use tracing::debug;
use super::GenmcScalar;
use crate::alloc_addresses::EvalContextExt as _;
use crate::intr... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/concurrency/genmc/thread_id_map.rs | src/tools/miri/src/concurrency/genmc/thread_id_map.rs | use genmc_sys::GENMC_MAIN_THREAD_ID;
use rustc_data_structures::fx::FxHashMap;
use crate::ThreadId;
#[derive(Debug)]
pub struct ThreadIdMap {
/// Map from Miri thread IDs to GenMC thread IDs.
/// We assume as little as possible about Miri thread IDs, so we use a map.
miri_to_genmc: FxHashMap<ThreadId, i32... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/concurrency/genmc/mod.rs | src/tools/miri/src/concurrency/genmc/mod.rs | use std::cell::{Cell, RefCell};
use std::sync::Arc;
use genmc_sys::{
EstimationResult, GENMC_GLOBAL_ADDRESSES_MASK, GenmcScalar, MemOrdering, MiriGenmcShim,
RMWBinOp, UniquePtr, create_genmc_driver_handle,
};
use rustc_abi::{Align, Size};
use rustc_const_eval::interpret::{AllocId, InterpCx, InterpResult, inter... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | true |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/concurrency/genmc/run.rs | src/tools/miri/src/concurrency/genmc/run.rs | use std::num::NonZeroI32;
use std::rc::Rc;
use std::sync::Arc;
use std::time::Instant;
use genmc_sys::EstimationResult;
use rustc_abi::Endian;
use rustc_log::tracing;
use rustc_middle::ty::TyCtxt;
use super::GlobalState;
use crate::concurrency::genmc::ExecutionEndResult;
use crate::rustc_const_eval::interpret::Pointe... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/concurrency/genmc/dummy.rs | src/tools/miri/src/concurrency/genmc/dummy.rs | use rustc_abi::{Align, Size};
use rustc_const_eval::interpret::{AllocId, InterpCx, InterpResult};
pub use self::intercept::EvalContextExt as GenmcEvalContextExt;
pub use self::run::run_genmc_mode;
use crate::intrinsics::AtomicRmwOp;
use crate::{
AtomicFenceOrd, AtomicReadOrd, AtomicRwOrd, AtomicWriteOrd, MemoryKin... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/intrinsics/math.rs | src/tools/miri/src/intrinsics/math.rs | use rustc_apfloat::{self, Float, FloatConvert, Round};
use rustc_middle::mir;
use rustc_middle::ty::{self, FloatTy};
use self::helpers::{ToHost, ToSoft};
use super::check_intrinsic_arg_count;
use crate::*;
fn sqrt<'tcx, F: Float + FloatConvert<F> + Into<Scalar>>(
this: &mut MiriInterpCx<'tcx>,
args: &[OpTy<'t... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/intrinsics/mod.rs | src/tools/miri/src/intrinsics/mod.rs | #![warn(clippy::arithmetic_side_effects)]
mod atomic;
mod math;
mod simd;
pub use self::atomic::AtomicRmwOp;
#[rustfmt::skip] // prevent `use` reordering
use rand::Rng;
use rustc_abi::Size;
use rustc_middle::{mir, ty};
use rustc_span::{Symbol, sym};
use self::atomic::EvalContextExt as _;
use self::math::EvalContext... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/intrinsics/simd.rs | src/tools/miri/src/intrinsics/simd.rs | use rustc_middle::ty;
use rustc_middle::ty::FloatTy;
use super::check_intrinsic_arg_count;
use crate::helpers::{ToHost, ToSoft};
use crate::*;
impl<'tcx> EvalContextExt<'tcx> for crate::MiriInterpCx<'tcx> {}
pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
/// Calls the simd intrinsic `intrinsic`; t... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/intrinsics/atomic.rs | src/tools/miri/src/intrinsics/atomic.rs | use rustc_middle::mir::BinOp;
use rustc_middle::ty::AtomicOrdering;
use rustc_middle::{mir, ty};
use super::check_intrinsic_arg_count;
use crate::*;
pub enum AtomicRmwOp {
MirOp {
op: mir::BinOp,
/// Indicates whether the result of the operation should be negated (`UnOp::Not`, must be a
//... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/bin/miri.rs | src/tools/miri/src/bin/miri.rs | #![feature(rustc_private, stmt_expr_attributes)]
#![allow(
clippy::manual_range_contains,
clippy::useless_format,
clippy::field_reassign_with_default,
clippy::needless_lifetimes,
rustc::diagnostic_outside_of_impl,
rustc::untranslatable_diagnostic
)]
// The rustc crates we need
extern crate rust... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | true |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/bin/log/setup.rs | src/tools/miri/src/bin/log/setup.rs | use std::env::{self, VarError};
use std::str::FromStr;
use std::sync::{Mutex, OnceLock};
use rustc_log::tracing;
use rustc_middle::ty::TyCtxt;
use rustc_session::{CtfeBacktrace, EarlyDiagCtxt};
/// The tracing layer from `tracing-chrome` starts a thread in the background that saves data to
/// file and closes the fil... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/bin/log/tracing_chrome_instant.rs | src/tools/miri/src/bin/log/tracing_chrome_instant.rs | //! Code in this class was in part inspired by
//! <https://github.com/tikv/minstant/blob/27c9ec5ec90b5b67113a748a4defee0d2519518c/src/tsc_now.rs>.
//! A useful resource is also
//! <https://www.pingcap.com/blog/how-we-trace-a-kv-database-with-less-than-5-percent-performance-impact/>,
//! although this file does not im... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/bin/log/tracing_chrome.rs | src/tools/miri/src/bin/log/tracing_chrome.rs | // SPDX-License-Identifier: MIT
// SPDX-FileCopyrightText: Copyright (c) 2020 Thoren Paulson
//! This file was initially taken from the following link:
//! <https://github.com/thoren-d/tracing-chrome/blob/7e2625ab4aeeef2f0ef9bde9d6258dd181c04472/src/lib.rs>
//!
//! The precise changes that were made to the original fil... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/bin/log/mod.rs | src/tools/miri/src/bin/log/mod.rs | pub mod setup;
mod tracing_chrome;
mod tracing_chrome_instant;
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/alloc/isolated_alloc.rs | src/tools/miri/src/alloc/isolated_alloc.rs | use std::alloc::Layout;
use std::ptr::NonNull;
use rustc_index::bit_set::DenseBitSet;
/// How many bytes of memory each bit in the bitset represents.
const COMPRESSION_FACTOR: usize = 4;
/// A dedicated allocator for interpreter memory contents, ensuring they are stored on dedicated
/// pages (not mixed with Miri's ... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/alloc/alloc_bytes.rs | src/tools/miri/src/alloc/alloc_bytes.rs | use std::alloc::Layout;
use std::borrow::Cow;
use std::cell::RefCell;
use std::rc::Rc;
use std::{alloc, slice};
use rustc_abi::{Align, Size};
use rustc_middle::mir::interpret::AllocBytes;
use crate::alloc::isolated_alloc::IsolatedAlloc;
use crate::helpers::ToU64 as _;
#[derive(Clone, Debug)]
pub enum MiriAllocParams... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/alloc/mod.rs | src/tools/miri/src/alloc/mod.rs | mod alloc_bytes;
#[cfg(all(unix, feature = "native-lib"))]
pub mod isolated_alloc;
#[cfg(not(all(unix, feature = "native-lib")))]
pub mod isolated_alloc {
use std::alloc::Layout;
/// Stub allocator to avoid `cfg`s in the rest of Miri.
#[derive(Debug)]
pub struct IsolatedAlloc(!);
impl IsolatedAllo... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/borrow_tracker/mod.rs | src/tools/miri/src/borrow_tracker/mod.rs | use std::cell::RefCell;
use std::fmt;
use std::num::NonZero;
use rustc_abi::Size;
use rustc_data_structures::fx::{FxHashMap, FxHashSet};
use rustc_middle::mir::RetagKind;
use smallvec::SmallVec;
use crate::*;
pub mod stacked_borrows;
pub mod tree_borrows;
/// Indicates which kind of access is being performed.
#[deri... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/borrow_tracker/stacked_borrows/diagnostics.rs | src/tools/miri/src/borrow_tracker/stacked_borrows/diagnostics.rs | use std::fmt;
use rustc_abi::Size;
use rustc_data_structures::fx::FxHashSet;
use rustc_span::{Span, SpanData};
use smallvec::SmallVec;
use crate::borrow_tracker::{AccessKind, GlobalStateInner, ProtectorKind};
use crate::*;
/// Error reporting
fn err_sb_ub<'tcx>(
msg: String,
help: Vec<String>,
history: O... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/borrow_tracker/stacked_borrows/mod.rs | src/tools/miri/src/borrow_tracker/stacked_borrows/mod.rs | //! Implements "Stacked Borrows". See <https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md>
//! for further information.
pub mod diagnostics;
mod item;
mod stack;
use std::fmt::Write;
use std::sync::atomic::AtomicBool;
use std::{cmp, mem};
use rustc_abi::Size;
use rustc_data_struc... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | true |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/borrow_tracker/stacked_borrows/stack.rs | src/tools/miri/src/borrow_tracker/stacked_borrows/stack.rs | #[cfg(feature = "stack-cache")]
use std::ops::Range;
use rustc_data_structures::fx::FxHashSet;
use rustc_log::tracing::trace;
use crate::borrow_tracker::stacked_borrows::{Item, Permission};
use crate::borrow_tracker::{AccessKind, BorTag};
use crate::{InterpResult, ProvenanceExtra, interp_ok};
/// Exactly what cache ... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/borrow_tracker/stacked_borrows/item.rs | src/tools/miri/src/borrow_tracker/stacked_borrows/item.rs | use std::fmt;
use crate::borrow_tracker::BorTag;
/// An item in the per-location borrow stack.
#[derive(Copy, Clone, Hash, PartialEq, Eq)]
pub struct Item(u64);
// An Item contains 3 bitfields:
// * Bits 0-61 store a BorTag.
// * Bits 61-63 store a Permission.
// * Bit 64 stores a flag which indicates if we might ha... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/borrow_tracker/tree_borrows/wildcard.rs | src/tools/miri/src/borrow_tracker/tree_borrows/wildcard.rs | use std::cmp::max;
use std::fmt::Debug;
use super::Tree;
use super::tree::{AccessRelatedness, Node};
use super::unimap::{UniIndex, UniValMap};
use crate::BorTag;
use crate::borrow_tracker::AccessKind;
#[cfg(feature = "expensive-consistency-checks")]
use crate::borrow_tracker::GlobalState;
/// Represents the maximum a... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/borrow_tracker/tree_borrows/diagnostics.rs | src/tools/miri/src/borrow_tracker/tree_borrows/diagnostics.rs | use std::fmt;
use std::ops::Range;
use rustc_data_structures::fx::FxHashMap;
use rustc_span::{Span, SpanData};
use crate::borrow_tracker::tree_borrows::perms::{PermTransition, Permission};
use crate::borrow_tracker::tree_borrows::tree::LocationState;
use crate::borrow_tracker::tree_borrows::unimap::UniIndex;
use crat... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | true |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/borrow_tracker/tree_borrows/perms.rs | src/tools/miri/src/borrow_tracker/tree_borrows/perms.rs | use std::cmp::{Ordering, PartialOrd};
use std::fmt;
use crate::borrow_tracker::AccessKind;
use crate::borrow_tracker::tree_borrows::diagnostics::TransitionError;
use crate::borrow_tracker::tree_borrows::tree::AccessRelatedness;
/// The activation states of a pointer.
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | true |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/borrow_tracker/tree_borrows/foreign_access_skipping.rs | src/tools/miri/src/borrow_tracker/tree_borrows/foreign_access_skipping.rs | use super::AccessKind;
use super::tree::AccessRelatedness;
/// To speed up tree traversals, we want to skip traversing subtrees when we know the traversal will have no effect.
/// This is often the case for foreign accesses, since usually foreign accesses happen several times in a row, but also
/// foreign accesses ar... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/borrow_tracker/tree_borrows/exhaustive.rs | src/tools/miri/src/borrow_tracker/tree_borrows/exhaustive.rs | //! Exhaustive testing utilities.
//! (These are used in Tree Borrows `#[test]`s for thorough verification
//! of the behavior of the state machine of permissions,
//! but the contents of this file are extremely generic)
pub trait Exhaustive: Sized {
fn exhaustive() -> Box<dyn Iterator<Item = Self>>;
}
macro_rule... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/borrow_tracker/tree_borrows/tree.rs | src/tools/miri/src/borrow_tracker/tree_borrows/tree.rs | //! In this file we handle the "Tree" part of Tree Borrows, i.e. all tree
//! traversal functions, optimizations to trim branches, and keeping track of
//! the relative position of the access to each node being updated. This of course
//! also includes the definition of the tree structure.
//!
//! Functions here manipu... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | true |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/borrow_tracker/tree_borrows/tree_visitor.rs | src/tools/miri/src/borrow_tracker/tree_borrows/tree_visitor.rs | use std::marker::PhantomData;
use super::tree::{AccessRelatedness, Node};
use super::unimap::{UniIndex, UniValMap};
/// Data given to the transition function
pub struct NodeAppArgs<'visit, T> {
/// The index of the current node.
pub idx: UniIndex,
/// Relative position of the access.
pub rel_pos: Acce... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/borrow_tracker/tree_borrows/mod.rs | src/tools/miri/src/borrow_tracker/tree_borrows/mod.rs | use rustc_abi::Size;
use rustc_middle::mir::{Mutability, RetagKind};
use rustc_middle::ty::layout::HasTypingEnv;
use rustc_middle::ty::{self, Ty};
use self::foreign_access_skipping::IdempotentForeignAccess;
use self::tree::LocationState;
use crate::borrow_tracker::{AccessKind, GlobalState, GlobalStateInner, ProtectorK... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/borrow_tracker/tree_borrows/unimap.rs | src/tools/miri/src/borrow_tracker/tree_borrows/unimap.rs | //! This module implements the `UniMap`, which is a way to get efficient mappings
//! optimized for the setting of `tree_borrows/tree.rs`.
//!
//! A `UniKeyMap<K>` is a (slow) mapping from `K` to `UniIndex`,
//! and `UniValMap<V>` is a (fast) mapping from `UniIndex` to `V`.
//! Thus a pair `(UniKeyMap<K>, UniValMap<V>)... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/borrow_tracker/tree_borrows/tree/tests.rs | src/tools/miri/src/borrow_tracker/tree_borrows/tree/tests.rs | //! Tests for the tree
#![cfg(test)]
use std::fmt;
use super::*;
use crate::borrow_tracker::tree_borrows::exhaustive::{Exhaustive, precondition};
impl Exhaustive for LocationState {
fn exhaustive() -> Box<dyn Iterator<Item = Self>> {
// We keep `latest_foreign_access` at `None` as that's just a cache.
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/data_structures/range_object_map.rs | src/tools/miri/src/data_structures/range_object_map.rs | //! Implements a map from allocation ranges to data. This is somewhat similar to RangeMap, but the
//! ranges and data are discrete and non-splittable -- they represent distinct "objects". An
//! allocation in the map will always have the same range until explicitly removed
use std::ops::{Index, IndexMut, Range};
use... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/data_structures/mono_hash_map.rs | src/tools/miri/src/data_structures/mono_hash_map.rs | //! This is a "monotonic `FxHashMap`": A `FxHashMap` that, when shared, can be pushed to but not
//! otherwise mutated. We also box items in the map. This means we can safely provide
//! shared references into existing items in the `FxHashMap`, because they will not be dropped
//! (from being removed) or moved (because... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/data_structures/mod.rs | src/tools/miri/src/data_structures/mod.rs | pub mod dedup_range_map;
pub mod mono_hash_map;
pub mod range_object_map;
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/src/data_structures/dedup_range_map.rs | src/tools/miri/src/data_structures/dedup_range_map.rs | //! Implements a map from integer indices to data.
//! Rather than storing data for every index, internally, this maps entire ranges to the data.
//! To this end, the APIs all work on ranges, not on individual integers. Ranges are split as
//! necessary (e.g., when [0,5) is first associated with X, and then [1,2) is mu... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/ui.rs | src/tools/miri/tests/ui.rs | use std::env;
use std::ffi::OsString;
use std::num::NonZero;
use std::path::{Path, PathBuf};
use std::process::Command;
use std::sync::OnceLock;
use colored::*;
use regex::bytes::Regex;
use ui_test::build_manager::BuildManager;
use ui_test::color_eyre::eyre::{Context, Result};
use ui_test::custom_flags::edition::Editi... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/many-seeds/scoped-thread-leak.rs | src/tools/miri/tests/many-seeds/scoped-thread-leak.rs | //! Regression test for https://github.com/rust-lang/miri/issues/2629
use std::thread;
fn main() {
thread::scope(|s| {
s.spawn(|| {});
});
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/many-seeds/reentrant-lock.rs | src/tools/miri/tests/many-seeds/reentrant-lock.rs | #![feature(reentrant_lock)]
//! This is a regression test for
//! <https://rust-lang.zulipchat.com/#narrow/channel/269128-miri/topic/reentrant.20lock.20failure.20on.20mips>.
use std::cell::Cell;
use std::sync::ReentrantLock;
use std::thread;
static LOCK: ReentrantLock<Cell<i32>> = ReentrantLock::new(Cell::new(0));
f... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/many-seeds/tls-leak.rs | src/tools/miri/tests/many-seeds/tls-leak.rs | //! Regression test for <https://github.com/rust-lang/rust/issues/123583>.
use std::thread;
fn with_thread_local1() {
thread_local! { static X: Box<u8> = Box::new(0); }
X.with(|_x| {})
}
fn with_thread_local2() {
thread_local! { static Y: Box<u8> = Box::new(0); }
Y.with(|_y| {})
}
fn main() {
// ... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/native-lib/fail/struct_not_extern_c.rs | src/tools/miri/tests/native-lib/fail/struct_not_extern_c.rs | // Only works on Unix targets
//@ignore-target: windows wasm
//@only-on-host
#![allow(improper_ctypes)]
pub struct PassMe {
pub value: i32,
pub other_value: i64,
}
extern "C" {
fn pass_struct(s: PassMe) -> i64;
}
fn main() {
let pass_me = PassMe { value: 42, other_value: 1337 };
unsafe { pass_st... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/native-lib/fail/pass_struct_expose_only_range.rs | src/tools/miri/tests/native-lib/fail/pass_struct_expose_only_range.rs | //@compile-flags: -Zmiri-permissive-provenance
#[repr(C)]
#[derive(Copy, Clone)]
struct HasPointer {
ptr: *const u8,
}
extern "C" {
fn access_struct_ptr(s: HasPointer) -> u8;
}
fn main() {
let structs = vec![HasPointer { ptr: &0 }, HasPointer { ptr: &1 }];
unsafe {
let r = access_struct_ptr(s... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/native-lib/fail/private_function.rs | src/tools/miri/tests/native-lib/fail/private_function.rs | // Only works on Unix targets
//@ignore-target: windows wasm
//@only-on-host
//@normalize-stderr-test: "OS `.*`" -> "$$OS"
extern "C" {
fn not_exported();
}
fn main() {
unsafe {
not_exported(); //~ ERROR: unsupported operation: can't call foreign function `not_exported`
}
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/native-lib/fail/function_not_in_so.rs | src/tools/miri/tests/native-lib/fail/function_not_in_so.rs | // Only works on Unix targets
//@ignore-target: windows wasm
//@only-on-host
//@normalize-stderr-test: "OS `.*`" -> "$$OS"
extern "C" {
fn foo();
}
fn main() {
unsafe {
foo(); //~ ERROR: unsupported operation: can't call foreign function `foo`
}
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/native-lib/fail/uninit_struct.rs | src/tools/miri/tests/native-lib/fail/uninit_struct.rs | #[repr(C)]
#[derive(Copy, Clone)]
struct ComplexStruct {
part_1: Part1,
part_2: Part2,
part_3: u32,
}
#[repr(C)]
#[derive(Copy, Clone)]
struct Part1 {
high: u16,
low: u16,
}
#[repr(C)]
#[derive(Copy, Clone)]
struct Part2 {
bits: u32,
}
extern "C" {
fn pass_struct_complex(s: ComplexStruct, h... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/native-lib/fail/tracing/partial_init.rs | src/tools/miri/tests/native-lib/fail/tracing/partial_init.rs | //@only-target: x86_64-unknown-linux-gnu i686-unknown-linux-gnu
//@compile-flags: -Zmiri-native-lib-enable-tracing
extern "C" {
fn init_n(n: i32, ptr: *mut u8);
}
fn main() {
partial_init();
}
// Initialise the first 2 elements of the slice from native code, and check
// that the 3rd is correctly deemed unin... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/native-lib/fail/tracing/unexposed_reachable_alloc.rs | src/tools/miri/tests/native-lib/fail/tracing/unexposed_reachable_alloc.rs | //@only-target: x86_64-unknown-linux-gnu i686-unknown-linux-gnu
//@compile-flags: -Zmiri-permissive-provenance -Zmiri-native-lib-enable-tracing
extern "C" {
fn do_one_deref(ptr: *const *const *const i32) -> usize;
}
fn main() {
unexposed_reachable_alloc();
}
// Expose 2 pointers by virtue of doing a native r... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/native-lib/pass/aggregate_arguments.rs | src/tools/miri/tests/native-lib/pass/aggregate_arguments.rs | fn main() {
test_pass_struct();
test_pass_struct_complex();
}
/// Test passing a basic struct as an argument.
fn test_pass_struct() {
// Exactly two fields, so that we hit the ScalarPair case.
#[repr(C)]
struct PassMe {
value: i32,
other_value: i64,
}
extern "C" {
f... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/native-lib/pass/ptr_write_access.rs | src/tools/miri/tests/native-lib/pass/ptr_write_access.rs | //@revisions: trace notrace
//@[trace] only-target: x86_64-unknown-linux-gnu i686-unknown-linux-gnu
//@[trace] compile-flags: -Zmiri-native-lib-enable-tracing
//@compile-flags: -Zmiri-permissive-provenance
#![feature(box_as_ptr)]
use std::mem::MaybeUninit;
use std::ptr;
fn main() {
test_increment_int();
test... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/native-lib/pass/scalar_arguments.rs | src/tools/miri/tests/native-lib/pass/scalar_arguments.rs | extern "C" {
fn add_one_int(x: i32) -> i32;
fn add_int16(x: i16) -> i16;
fn test_stack_spill(
a: i32,
b: i32,
c: i32,
d: i32,
e: i32,
f: i32,
g: i32,
h: i32,
i: i32,
j: i32,
k: i32,
l: i32,
) -> i32;
fn a... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/native-lib/pass/ptr_read_access.rs | src/tools/miri/tests/native-lib/pass/ptr_read_access.rs | //@revisions: trace notrace
//@[trace] only-target: x86_64-unknown-linux-gnu i686-unknown-linux-gnu
//@[trace] compile-flags: -Zmiri-native-lib-enable-tracing
//@compile-flags: -Zmiri-permissive-provenance
use std::ptr::NonNull;
fn main() {
test_access_pointer();
test_access_simple();
test_access_nested()... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/storage-live-resets-var.rs | src/tools/miri/tests/fail/storage-live-resets-var.rs | #![feature(core_intrinsics, custom_mir)]
use std::intrinsics::mir::*;
#[custom_mir(dialect = "runtime")]
fn main() {
mir! {
let val: i32;
let _val2: i32;
{
StorageLive(val);
val = 42;
StorageLive(val); // reset val to `uninit`
_val2 = val; //~... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/branchless-select-i128-pointer.rs | src/tools/miri/tests/fail/branchless-select-i128-pointer.rs | #![allow(integer_to_ptr_transmutes)]
use std::mem::transmute;
#[cfg(target_pointer_width = "32")]
type TwoPtrs = i64;
#[cfg(target_pointer_width = "64")]
type TwoPtrs = i128;
fn main() {
for &my_bool in &[true, false] {
let mask = -(my_bool as TwoPtrs); // false -> 0, true -> -1 aka !0
// This is... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/erroneous_const2.rs | src/tools/miri/tests/fail/erroneous_const2.rs | const X: u32 = 5;
const Y: u32 = 6;
const FOO: u32 = [X - Y, Y - X][(X < Y) as usize];
//~^ERROR: overflow
#[rustfmt::skip] // rustfmt bug: https://github.com/rust-lang/rustfmt/issues/5391
fn main() {
println!("{}", FOO);
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/type-too-large.rs | src/tools/miri/tests/fail/type-too-large.rs | //@ignore-bitwidth: 32
fn main() {
let _fat: [u8; (1 << 61) + (1 << 31)]; // ideally we'd error here, but we avoid computing the layout until absolutely necessary
_fat = [0; (1u64 << 61) as usize + (1u64 << 31) as usize]; //~ ERROR: post-monomorphization error
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/async-shared-mutable.rs | src/tools/miri/tests/fail/async-shared-mutable.rs | //! FIXME: This test should pass! However, `async fn` does not yet use `UnsafePinned`.
//! This is a regression test for <https://github.com/rust-lang/rust/issues/137750>:
//! `UnsafePinned` must include the effects of `UnsafeCell`.
//@revisions: stack tree
//@[tree]compile-flags: -Zmiri-tree-borrows
//@normalize-stder... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/dyn-upcast-trait-mismatch.rs | src/tools/miri/tests/fail/dyn-upcast-trait-mismatch.rs | // Validation stops this too early.
//@compile-flags: -Zmiri-disable-validation
trait Foo: PartialEq<i32> + std::fmt::Debug + Send + Sync {
#[allow(dead_code)]
fn a(&self) -> i32 {
10
}
#[allow(dead_code)]
fn z(&self) -> i32 {
11
}
#[allow(dead_code)]
fn y(&self) -> i3... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/extern-type-field-offset.rs | src/tools/miri/tests/fail/extern-type-field-offset.rs | #![feature(extern_types)]
extern "C" {
type Opaque;
}
struct Newtype(Opaque);
struct S {
i: i32,
j: i32,
a: Newtype,
}
fn main() {
let buf = [0i32; 4];
let x: &Newtype = unsafe { &*(&buf as *const _ as *const Newtype) };
// Projecting to the newtype works, because it is always at offset... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/erroneous_const.rs | src/tools/miri/tests/fail/erroneous_const.rs | //! Make sure we detect erroneous constants post-monomorphization even when they are unused.
//! (https://github.com/rust-lang/miri/issues/1382)
#![feature(never_type)]
struct PrintName<T>(T);
impl<T> PrintName<T> {
const VOID: ! = panic!(); //~ERROR: explicit panic
}
fn no_codegen<T>() {
if false {
l... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/static_memory_modification1.rs | src/tools/miri/tests/fail/static_memory_modification1.rs | // Stacked Borrows detects that we are casting & to &mut and so it changes why we fail
//@compile-flags: -Zmiri-disable-stacked-borrows
static X: usize = 5;
#[allow(mutable_transmutes)]
fn main() {
unsafe {
*std::mem::transmute::<&usize, &mut usize>(&X) = 6; //~ ERROR: read-only
assert_eq!(X, 6);
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/issue-miri-1112.rs | src/tools/miri/tests/fail/issue-miri-1112.rs | trait Empty {}
#[repr(transparent)]
pub struct FunnyPointer(dyn Empty);
#[repr(C)]
pub struct Meta {
drop_fn: fn(&mut ()),
size: usize,
align: usize,
}
impl Meta {
fn new() -> Self {
Meta { drop_fn: |_| {}, size: 0, align: 1 }
}
}
#[repr(C)]
pub struct FatPointer {
pub data: *const (... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/layout_cycle.rs | src/tools/miri/tests/fail/layout_cycle.rs | //@error-in-other-file: a cycle occurred during layout computation
//~^ ERROR: cycle detected when computing layout of
use std::mem;
pub struct S<T: Tr> {
pub f: <T as Tr>::I,
}
pub trait Tr {
type I: Tr;
}
impl<T: Tr> Tr for S<T> {
type I = S<S<T>>;
}
impl Tr for () {
type I = ();
}
fn foo<T: Tr>... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/miri_start_wrong_sig.rs | src/tools/miri/tests/fail/miri_start_wrong_sig.rs | //@compile-flags: -Cpanic=abort
//@error-in-other-file: `miri_start` must have the following signature:
#![no_main]
#![no_std]
use core::fmt::Write;
#[path = "../utils/mod.no_std.rs"]
mod utils;
#[no_mangle]
fn miri_start() -> isize {
//~^ ERROR: mismatched types
writeln!(utils::MiriStdout, "Hello from miri_... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/environ-gets-deallocated.rs | src/tools/miri/tests/fail/environ-gets-deallocated.rs | //@ignore-target: windows # Windows does not have a global environ list that the program can access directly
fn get_environ() -> *const *const u8 {
extern "C" {
static mut environ: *const *const u8;
}
unsafe { environ }
}
fn main() {
let pointer = get_environ();
let _x = unsafe { *pointer ... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/memleak.rs | src/tools/miri/tests/fail/memleak.rs | //@normalize-stderr-test: ".*│.*" -> "$$stripped$$"
fn main() {
std::mem::forget(Box::new(42)); //~ERROR: memory leaked
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/breakpoint.rs | src/tools/miri/tests/fail/breakpoint.rs | #![feature(core_intrinsics)]
fn main() {
core::intrinsics::breakpoint(); //~ ERROR: trace/breakpoint trap
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/extern_static.rs | src/tools/miri/tests/fail/extern_static.rs | //! Even referencing an unknown `extern static` already triggers an error.
extern "C" {
static mut FOO: i32;
}
fn main() {
let _val = std::ptr::addr_of!(FOO); //~ ERROR: is not supported by Miri
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/unwind-action-terminate.rs | src/tools/miri/tests/fail/unwind-action-terminate.rs | //@error-in-other-file: aborted execution
//@normalize-stderr-test: "\n +[0-9]+:[^\n]+" -> ""
//@normalize-stderr-test: "\n +at [^\n]+" -> ""
extern "C" fn panic_abort() {
panic!()
}
fn main() {
panic_abort();
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/tls_static_leak.rs | src/tools/miri/tests/fail/tls_static_leak.rs | //@normalize-stderr-test: ".*│.*" -> "$$stripped$$"
#![feature(thread_local)]
use std::cell::Cell;
/// Ensure that leaks through `thread_local` statics *not in the main thread*
/// are detected.
fn main() {
#[thread_local]
static TLS: Cell<Option<&'static i32>> = Cell::new(None);
std::thread::spawn(|| {... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/deny_lint.rs | src/tools/miri/tests/fail/deny_lint.rs | #![deny(warnings, unused)]
struct Foo;
//~^ ERROR: struct `Foo` is never constructed
fn main() {}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/dyn-call-trait-mismatch.rs | src/tools/miri/tests/fail/dyn-call-trait-mismatch.rs | // Validation and SB stop this too early.
//@compile-flags: -Zmiri-disable-validation -Zmiri-disable-stacked-borrows
trait T1 {
#[allow(dead_code)]
fn method1(self: Box<Self>);
}
trait T2 {
fn method2(self: Box<Self>);
}
impl T1 for i32 {
fn method1(self: Box<Self>) {}
}
fn main() {
let r = Box::... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/issue-miri-3288-ice-symbolic-alignment-extern-static.rs | src/tools/miri/tests/fail/issue-miri-3288-ice-symbolic-alignment-extern-static.rs | //@compile-flags: -Zmiri-symbolic-alignment-check
extern "C" {
static _dispatch_queue_attr_concurrent: [u8; 0];
}
static DISPATCH_QUEUE_CONCURRENT: &'static [u8; 0] = unsafe { &_dispatch_queue_attr_concurrent };
fn main() {
let _val = *DISPATCH_QUEUE_CONCURRENT; //~ERROR: is not supported
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/ptr_swap_nonoverlapping.rs | src/tools/miri/tests/fail/ptr_swap_nonoverlapping.rs | //! This is a regression test for <https://github.com/rust-lang/miri/issues/4188>: The precondition
//! check in `ptr::swap_nonoverlapping` was incorrectly disabled in Miri.
//@normalize-stderr-test: "\n +[0-9]+:[^\n]+" -> ""
//@normalize-stderr-test: "\n +at [^\n]+" -> ""
//@error-in-other-file: aborted execution
fn ... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/box-cell-alias.rs | src/tools/miri/tests/fail/box-cell-alias.rs | //@compile-flags: -Zmiri-strict-provenance
// Taken from <https://github.com/rust-lang/unsafe-code-guidelines/issues/194#issuecomment-520934222>.
use std::cell::Cell;
fn helper(val: Box<Cell<u8>>, ptr: *const Cell<u8>) -> u8 {
val.set(10);
unsafe { (*ptr).set(20) }; //~ ERROR: does not exist in the borrow st... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/static_memory_modification3.rs | src/tools/miri/tests/fail/static_memory_modification3.rs | // Stacked Borrows detects that we are casting & to &mut and so it changes why we fail
//@compile-flags: -Zmiri-disable-stacked-borrows
use std::mem::transmute;
#[allow(mutable_transmutes)]
fn main() {
unsafe {
let bs = b"this is a test";
transmute::<&[u8], &mut [u8]>(bs)[4] = 42; //~ ERROR: read-... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/static_memory_modification2.rs | src/tools/miri/tests/fail/static_memory_modification2.rs | // Stacked Borrows detects that we are casting & to &mut and so it changes why we fail
//@compile-flags: -Zmiri-disable-stacked-borrows
use std::mem::transmute;
#[allow(mutable_transmutes)]
fn main() {
unsafe {
let s = "this is a test";
transmute::<&[u8], &mut [u8]>(s.as_bytes())[4] = 42; //~ ERRO... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/reading_half_a_pointer.rs | src/tools/miri/tests/fail/reading_half_a_pointer.rs | #![allow(dead_code)]
// We use packed structs to get around alignment restrictions
#[repr(C, packed)]
struct Data {
pad: u8,
ptr: &'static i32,
}
// But we need to guarantee some alignment
struct Wrapper {
align: u64,
data: Data,
}
static G: i32 = 0;
fn main() {
let mut w = Wrapper { align: 0, d... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/extern_static_in_const.rs | src/tools/miri/tests/fail/extern_static_in_const.rs | //! Even referencing an unknown `extern static` already triggers an error.
extern "C" {
static E: [u8; 0];
}
static X: &'static [u8; 0] = unsafe { &E };
fn main() {
let _val = X; //~ ERROR: is not supported by Miri
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/storage-live-dead-var.rs | src/tools/miri/tests/fail/storage-live-dead-var.rs | #![feature(core_intrinsics, custom_mir)]
use std::intrinsics::mir::*;
#[custom_mir(dialect = "runtime")]
fn main() {
mir! {
let val: i32;
{
val = 42; //~ERROR: accessing a dead local variable
StorageLive(val); // too late... (but needs to be here to make `val` not implicitly... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/memleak_no_backtrace.rs | src/tools/miri/tests/fail/memleak_no_backtrace.rs | //@compile-flags: -Zmiri-disable-leak-backtraces
//@error-in-other-file: memory leaked
//@normalize-stderr-test: ".*│.*" -> "$$stripped$$"
fn main() {
std::mem::forget(Box::new(42));
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/never_match_never.rs | src/tools/miri/tests/fail/never_match_never.rs | // This should fail even without validation
//@compile-flags: -Zmiri-disable-validation
#![feature(never_type)]
#![allow(unreachable_code)]
fn main() {
let ptr: *const (i32, !) = &0i32 as *const i32 as *const _;
unsafe { match (*ptr).1 {} } //~ ERROR: entering unreachable code
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/never_say_never.rs | src/tools/miri/tests/fail/never_say_never.rs | // This should fail even without validation
//@compile-flags: -Zmiri-disable-validation
#![feature(never_type)]
#![allow(unreachable_code)]
fn main() {
let y = &5;
let x: ! = unsafe { *(y as *const _ as *const !) };
f(x) //~ ERROR: entering unreachable code
}
fn f(x: !) -> ! {
x
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/overlapping_assignment.rs | src/tools/miri/tests/fail/overlapping_assignment.rs | #![feature(core_intrinsics)]
#![feature(custom_mir)]
use std::intrinsics::mir::*;
// It's not that easy to fool the MIR validity check
// which wants to prevent overlapping assignments...
// So we use two separate pointer arguments, and then arrange for them to alias.
#[custom_mir(dialect = "runtime", phase = "optimi... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/modifying_constants.rs | src/tools/miri/tests/fail/modifying_constants.rs | // This should fail even without validation/SB
//@compile-flags: -Zmiri-disable-validation -Zmiri-disable-stacked-borrows
#![allow(invalid_reference_casting)]
fn main() {
let x = &1; // the `&1` is promoted to a constant, but it used to be that only the pointer is marked static, not the pointee
let y = unsafe... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/rustc-error2.rs | src/tools/miri/tests/fail/rustc-error2.rs | // Regression test for https://github.com/rust-lang/rust/issues/121508.
struct Struct<T>(T);
impl<T> std::ops::Deref for Struct<T> {
type Target = dyn Fn(T);
fn deref(&self) -> &assert_mem_uninitialized_valid::Target {
//~^ERROR: use of unresolved module or unlinked crate
unimplemented!()
}... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/overlapping_assignment_aggregate.rs | src/tools/miri/tests/fail/overlapping_assignment_aggregate.rs | //! This is like `pass/overlapping_assignment_aggregate_scalar.rs` but with a non-scalar
//! type, and that makes it definite UB.
#![feature(custom_mir, core_intrinsics)]
#![allow(internal_features)]
use std::intrinsics::mir::*;
#[custom_mir(dialect = "runtime")]
fn main() {
mir! {
let _1: ([u8; 1],);
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/coroutine-pinned-moved.rs | src/tools/miri/tests/fail/coroutine-pinned-moved.rs | //@compile-flags: -Zmiri-disable-validation -Zmiri-disable-stacked-borrows
#![feature(coroutines, coroutine_trait, stmt_expr_attributes)]
use std::ops::{Coroutine, CoroutineState};
use std::pin::Pin;
fn firstn() -> impl Coroutine<Yield = u64, Return = ()> {
#[coroutine]
static move || {
let mut num = ... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/terminate-terminator.rs | src/tools/miri/tests/fail/terminate-terminator.rs | //@compile-flags: -Zmir-opt-level=3 -Zinline-mir-hint-threshold=1000
//@normalize-stderr-test: "\n +[0-9]+:[^\n]+" -> ""
//@normalize-stderr-test: "\n +at [^\n]+" -> ""
//@error-in-other-file: aborted execution
// Enable MIR inlining to ensure that `TerminatorKind::UnwindTerminate` is generated
// instead of just `Unwi... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/extern_static_wrong_size.rs | src/tools/miri/tests/fail/extern_static_wrong_size.rs | //@only-target: linux # we need a specific extern supported on this target
//@normalize-stderr-test: "[48] bytes" -> "N bytes"
extern "C" {
static mut environ: i8;
}
fn main() {
let _val = unsafe { environ }; //~ ERROR: /with a size of 1 bytes and alignment of 1 bytes, but Miri emulates it via an extern stati... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/const-ub-checks.rs | src/tools/miri/tests/fail/const-ub-checks.rs | const UNALIGNED_READ: () = unsafe {
let x = &[0u8; 4];
let ptr = x.as_ptr().cast::<u32>();
ptr.read(); //~ERROR: accessing memory based on pointer with alignment 1, but alignment 4 is required
};
fn main() {
let _x = UNALIGNED_READ;
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/dyn-upcast-nop-wrong-trait.rs | src/tools/miri/tests/fail/dyn-upcast-nop-wrong-trait.rs | // This upcast is currently forbidden because it involves an invalid value.
// However, if in the future we relax the validity requirements for raw pointer vtables,
// we could consider allowing this again -- the cast itself isn't doing anything wrong,
// only the transmutes needed to set up the testcase are wrong.
us... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/never_transmute_humans.rs | src/tools/miri/tests/fail/never_transmute_humans.rs | // This should fail even without validation
//@compile-flags: -Zmiri-disable-validation
#![feature(never_type)]
struct Human;
fn main() {
let _x: ! = unsafe {
std::mem::transmute::<Human, !>(Human) //~ ERROR: entering unreachable code
};
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/rc_as_ptr.rs | src/tools/miri/tests/fail/rc_as_ptr.rs | // This should fail even without validation
//@compile-flags: -Zmiri-disable-validation
use std::ptr;
use std::rc::{Rc, Weak};
/// Taken from the `Weak::as_ptr` doctest.
fn main() {
let strong = Rc::new(Box::new(42));
let weak = Rc::downgrade(&strong);
// Both point to the same object
assert!(ptr::eq(... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/miri/tests/fail/no_main.rs | src/tools/miri/tests/fail/no_main.rs | //@error-in-other-file: Miri can only run programs that have a main function.
#![no_main]
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
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