Rollup merge of #116234 - RalfJung:miri, r=RalfJung

Miri subtree update

r? `@ghost`

Author: matthiaskrgr

Cargo.lock

@@ -2419,7 +2419,7 @@ dependencies = [
  "rustc_version",
  "serde",
  "smallvec",
- "ui_test 0.11.7",
+ "ui_test 0.21.2",
 ]
 
 [[package]]
@@ -5621,18 +5621,23 @@ checksum = "9e79c4d996edb816c91e4308506774452e55e95c3c9de07b6729e17e15a5ef81"
 
 [[package]]
 name = "ui_test"
-version = "0.11.7"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c21899b59f53717dfad29e4f46e5b21a200a1b6888ab86532a07cfc8b48dd78c"
+checksum = "bfd8fb9b15c8332cf51bfc2dc4830063b2446a9c9d732421b56f2478024a3971"
 dependencies = [
+ "annotate-snippets",
+ "anyhow",
  "bstr",
  "cargo-platform",
  "cargo_metadata",
  "color-eyre",
  "colored",
+ "comma",
  "crossbeam-channel",
- "diff",
+ "indicatif",
  "lazy_static",
+ "levenshtein",
+ "prettydiff",
  "regex",
  "rustc_version",
  "rustfix",
@@ -5643,9 +5648,9 @@ dependencies = [
 
 [[package]]
 name = "ui_test"
-version = "0.20.0"
+version = "0.21.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bfd8fb9b15c8332cf51bfc2dc4830063b2446a9c9d732421b56f2478024a3971"
+checksum = "aaf4bf7c184b8dfc7a4d3b90df789b1eb992ee42811cd115f32a7a1eb781058d"
 dependencies = [
  "annotate-snippets",
  "anyhow",

src/tools/miri/Cargo.lock

@@ -26,6 +26,25 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "annotate-snippets"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3b9d411ecbaf79885c6df4d75fff75858d5995ff25385657a28af47e82f9c36"
+dependencies = [
+ "unicode-width",
+ "yansi-term",
+]
+
+[[package]]
+name = "ansi_term"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d52a9bb7ec0cf484c551830a7ce27bd20d67eac647e1befb56b0be4ee39a55d2"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "anyhow"
 version = "1.0.71"
@@ -159,6 +178,25 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "comma"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "55b672471b4e9f9e95499ea597ff64941a309b2cdbffcc46f2cc5e2d971fd335"
+
+[[package]]
+name = "console"
+version = "0.15.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c926e00cc70edefdc64d3a5ff31cc65bb97a3460097762bd23afb4d8145fccf8"
+dependencies = [
+ "encode_unicode",
+ "lazy_static",
+ "libc",
+ "unicode-width",
+ "windows-sys 0.45.0",
+]
+
 [[package]]
 name = "crossbeam-channel"
 version = "0.5.8"
@@ -189,10 +227,10 @@ dependencies = [
 ]
 
 [[package]]
-name = "diff"
-version = "0.1.13"
+name = "encode_unicode"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "56254986775e3233ffa9c4d7d3faaf6d36a2c09d30b20687e9f88bc8bafc16c8"
+checksum = "a357d28ed41a50f9c765dbfe56cbc04a64e53e5fc58ba79fbc34c10ef3df831f"
 
 [[package]]
 name = "env_logger"
@@ -282,6 +320,19 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ce23b50ad8242c51a442f3ff322d56b02f08852c77e4c0b4d3fd684abc89c683"
 
+[[package]]
+name = "indicatif"
+version = "0.17.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fb28741c9db9a713d93deb3bb9515c20788cef5815265bee4980e87bde7e0f25"
+dependencies = [
+ "console",
+ "instant",
+ "number_prefix",
+ "portable-atomic",
+ "unicode-width",
+]
+
 [[package]]
 name = "instant"
 version = "0.1.12"
@@ -325,6 +376,12 @@ version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
+[[package]]
+name = "levenshtein"
+version = "1.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "db13adb97ab515a3691f56e4dbab09283d0b86cb45abd991d8634a9d6f501760"
+
 [[package]]
 name = "libc"
 version = "0.2.148"
@@ -463,6 +520,12 @@ dependencies = [
  "static_assertions",
 ]
 
+[[package]]
+name = "number_prefix"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "830b246a0e5f20af87141b25c173cd1b609bd7779a4617d6ec582abaf90870f3"
+
 [[package]]
 name = "object"
 version = "0.30.3"
@@ -484,6 +547,15 @@ version = "3.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c1b04fb49957986fdce4d6ee7a65027d55d4b6d2265e5848bbb507b58ccfdb6f"
 
+[[package]]
+name = "pad"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d2ad9b889f1b12e0b9ee24db044b5129150d5eada288edc800f789928dc8c0e3"
+dependencies = [
+ "unicode-width",
+]
+
 [[package]]
 name = "parking_lot"
 version = "0.11.2"
@@ -524,12 +596,28 @@ version = "0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e0a7ae3ac2f1173085d398531c705756c94a4c56843785df85a60c1a0afac116"
 
+[[package]]
+name = "portable-atomic"
+version = "1.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "31114a898e107c51bb1609ffaf55a0e011cf6a4d7f1170d0015a165082c0338b"
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
 
+[[package]]
+name = "prettydiff"
+version = "0.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ff1fec61082821f8236cf6c0c14e8172b62ce8a72a0eedc30d3b247bb68dc11"
+dependencies = [
+ "ansi_term",
+ "pad",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.66"
@@ -859,18 +947,23 @@ dependencies = [
 
 [[package]]
 name = "ui_test"
-version = "0.11.7"
+version = "0.21.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c21899b59f53717dfad29e4f46e5b21a200a1b6888ab86532a07cfc8b48dd78c"
+checksum = "accffe020b57a6dd50014d457b5842c5a2ca73cd84f07d86d0a19c460a6509ae"
 dependencies = [
+ "annotate-snippets",
+ "anyhow",
  "bstr",
  "cargo-platform",
  "cargo_metadata",
  "color-eyre",
  "colored",
+ "comma",
  "crossbeam-channel",
- "diff",
+ "indicatif",
  "lazy_static",
+ "levenshtein",
+ "prettydiff",
  "regex",
  "rustc_version",
  "rustfix",
@@ -885,6 +978,12 @@ version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e5464a87b239f13a63a501f2701565754bae92d243d4bb7eb12f6d57d2269bf4"
 
+[[package]]
+name = "unicode-width"
+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e51733f11c9c4f72aa0c160008246859e340b00807569a0da0e7a1079b27ba85"
+
 [[package]]
 name = "valuable"
 version = "0.1.0"
@@ -1059,3 +1158,12 @@ name = "windows_x86_64_msvc"
 version = "0.48.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a"
+
+[[package]]
+name = "yansi-term"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fe5c30ade05e61656247b2e334a031dfd0cc466fadef865bdcdea8d537951bf1"
+dependencies = [
+ "winapi",
+]

src/tools/miri/Cargo.toml

@@ -36,7 +36,7 @@ libloading = "0.7"
 
 [dev-dependencies]
 colored = "2"
-ui_test = "0.11.7"
+ui_test = "0.21.1"
 rustc_version = "0.4"
 # Features chosen to match those required by env_logger, to avoid rebuilds
 regex = { version = "1.5.5", default-features = false, features = ["perf", "std"] }

src/tools/miri/README.md

@@ -478,6 +478,8 @@ Moreover, Miri recognizes some environment variables:
 * `MIRI_TEST_TARGET` (recognized by the test suite and the `./miri` script) indicates which target
   architecture to test against.  `miri` and `cargo miri` accept the `--target` flag for the same
   purpose.
+* `MIRI_TEST_THREADS` (recognized by the test suite): set the number of threads to use for running tests.
+  By default the number of cores is used.
 * `MIRI_NO_STD` (recognized by `cargo miri` and the test suite) makes sure that the target's
   sysroot is built without libstd. This allows testing and running no_std programs.
 * `RUSTC_BLESS` (recognized by the test suite and `cargo-miri-test/run-test.py`): overwrite all

src/tools/miri/bench-cargo-miri/invalidate/Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "invalidate"
+version = "0.1.0"

src/tools/miri/bench-cargo-miri/invalidate/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "invalidate"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

src/tools/miri/bench-cargo-miri/invalidate/src/main.rs

@@ -0,0 +1,4 @@
+fn main() {
+    // The end of the range is just chosen to make the benchmark run for a few seconds.
+    for _ in 0..200_000 {}
+}

src/tools/miri/cargo-miri/src/phases.rs

@@ -10,7 +10,7 @@ use rustc_version::VersionMeta;
 
 use crate::{setup::*, util::*};
 
-const CARGO_MIRI_HELP: &str = r#"Runs binary crates and tests in Miri
+const CARGO_MIRI_HELP: &str = r"Runs binary crates and tests in Miri
 
 Usage:
     cargo miri [subcommand] [<cargo options>...] [--] [<program/test suite options>...]
@@ -31,7 +31,7 @@ Examples:
         This will print the path to the generated sysroot (and nothing else) on stdout.
         stderr will still contain progress information about how the build is doing.
 
-"#;
+";
 
 fn show_help() {
     println!("{CARGO_MIRI_HELP}");

src/tools/miri/rust-version

@@ -1 +1 @@
-42ca6e4e5760a548a6fa858482de6d237f6fb3b8
+2ba4eb2d49e774b5fbc2a06258ac7b0f60b92b7e

src/tools/miri/src/borrow_tracker/stacked_borrows/diagnostics.rs

@@ -1,6 +1,7 @@
 use smallvec::SmallVec;
 use std::fmt;
 
+use rustc_data_structures::fx::FxHashSet;
 use rustc_middle::mir::interpret::{alloc_range, AllocId, AllocRange, InterpError};
 use rustc_span::{Span, SpanData};
 use rustc_target::abi::Size;
@@ -233,6 +234,12 @@ impl AllocHistory {
             protectors: SmallVec::new(),
         }
     }
+
+    pub fn retain(&mut self, live_tags: &FxHashSet<BorTag>) {
+        self.invalidations.retain(|event| live_tags.contains(&event.tag));
+        self.creations.retain(|event| live_tags.contains(&event.retag.new_tag));
+        self.protectors.retain(|event| live_tags.contains(&event.tag));
+    }
 }
 
 impl<'history, 'ecx, 'mir, 'tcx> DiagnosticCx<'history, 'ecx, 'mir, 'tcx> {

src/tools/miri/src/borrow_tracker/stacked_borrows/mod.rs

@@ -456,6 +456,7 @@ impl Stacks {
                     stack.retain(live_tags);
                 }
             }
+            self.history.retain(live_tags);
             self.modified_since_last_gc = false;
         }
     }