Rollup of 6 pull requests

Cargo.lock

@@ -96,7 +96,7 @@ version = "0.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ccaf7e9dfbb6ab22c82e473cd1a8a7bd313c19a5b7e40970f3d89ef5a5c9e81e"
 dependencies = [
- "unicode-width",
+ "unicode-width 0.1.14",
  "yansi-term",
 ]
 
@@ -107,7 +107,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "24e35ed54e5ea7997c14ed4c70ba043478db1112e98263b3b035907aa197d991"
 dependencies = [
  "anstyle",
- "unicode-width",
+ "unicode-width 0.1.14",
 ]
 
 [[package]]
@@ -168,7 +168,7 @@ dependencies = [
  "anstyle",
  "anstyle-lossy",
  "html-escape",
- "unicode-width",
+ "unicode-width 0.1.14",
 ]
 
 [[package]]
@@ -737,7 +737,7 @@ dependencies = [
  "encode_unicode",
  "lazy_static",
  "libc",
- "unicode-width",
+ "unicode-width 0.1.14",
  "windows-sys 0.52.0",
 ]
 
@@ -1425,7 +1425,7 @@ version = "0.2.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "14dbbfd5c71d70241ecf9e6f13737f7b5ce823821063188d7e46c41d371eebd5"
 dependencies = [
- "unicode-width",
+ "unicode-width 0.1.14",
 ]
 
 [[package]]
@@ -1788,7 +1788,7 @@ dependencies = [
  "instant",
  "number_prefix",
  "portable-atomic",
- "unicode-width",
+ "unicode-width 0.1.14",
 ]
 
 [[package]]
@@ -2590,7 +2590,7 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d2ad9b889f1b12e0b9ee24db044b5129150d5eada288edc800f789928dc8c0e3"
 dependencies = [
- "unicode-width",
+ "unicode-width 0.1.14",
 ]
 
 [[package]]
@@ -2601,7 +2601,7 @@ checksum = "9ad43c07024ef767f9160710b3a6773976194758c7919b17e63b863db0bdf7fb"
 dependencies = [
  "bytecount",
  "fnv",
- "unicode-width",
+ "unicode-width 0.1.14",
 ]
 
 [[package]]
@@ -4188,7 +4188,7 @@ dependencies = [
  "thin-vec",
  "tracing",
  "unicode-normalization",
- "unicode-width",
+ "unicode-width 0.2.0",
 ]
 
 [[package]]
@@ -4422,7 +4422,7 @@ dependencies = [
  "sha1",
  "sha2",
  "tracing",
- "unicode-width",
+ "unicode-width 0.2.0",
 ]
 
 [[package]]
@@ -4687,7 +4687,7 @@ dependencies = [
  "tracing-subscriber",
  "unicode-properties",
  "unicode-segmentation",
- "unicode-width",
+ "unicode-width 0.1.14",
 ]
 
 [[package]]
@@ -5097,7 +5097,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4c998b0c8b921495196a48aabaf1901ff28be0760136e31604f7967b0792050e"
 dependencies = [
  "papergrid",
- "unicode-width",
+ "unicode-width 0.1.14",
 ]
 
 [[package]]
@@ -5646,6 +5646,12 @@ version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7dd6e30e90baa6f72411720665d41d89b9a3d039dc45b8faea1ddd07f617f6af"
 
+[[package]]
+name = "unicode-width"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fc81956842c57dac11422a97c3b8195a1ff727f06e85c84ed2e8aa277c9a0fd"
+
 [[package]]
 name = "unicode-xid"
 version = "0.2.6"
@@ -5894,7 +5900,7 @@ dependencies = [
  "bumpalo",
  "leb128",
  "memchr",
- "unicode-width",
+ "unicode-width 0.1.14",
  "wasm-encoder 0.219.0",
 ]
 

compiler/rustc_parse/Cargo.toml

@@ -20,7 +20,7 @@ rustc_span = { path = "../rustc_span" }
 thin-vec = "0.2.12"
 tracing = "0.1"
 unicode-normalization = "0.1.11"
-unicode-width = "0.1.4"
+unicode-width = "0.2.0"
 # tidy-alphabetical-end
 
 [dev-dependencies]

compiler/rustc_span/Cargo.toml

@@ -19,5 +19,5 @@ scoped-tls = "1.0"
 sha1 = "0.10.0"
 sha2 = "0.10.1"
 tracing = "0.1"
-unicode-width = "0.1.4"
+unicode-width = "0.2.0"
 # tidy-alphabetical-end

library/core/src/lib.rs

@@ -178,6 +178,7 @@
 // tidy-alphabetical-start
 #![cfg_attr(bootstrap, feature(const_mut_refs))]
 #![cfg_attr(bootstrap, feature(const_refs_to_cell))]
+#![cfg_attr(bootstrap, feature(const_refs_to_static))]
 #![feature(abi_unadjusted)]
 #![feature(adt_const_params)]
 #![feature(allow_internal_unsafe)]

library/core/src/unicode/unicode_data.rs

@@ -331,14 +331,14 @@ pub mod grapheme_extend {
 
 #[rustfmt::skip]
 pub mod lowercase {
-    const BITSET_CHUNKS_MAP: &'static [u8; 123] = &[
+    static BITSET_CHUNKS_MAP: [u8; 123] = [
         14, 17, 0, 0, 9, 0, 0, 12, 13, 10, 0, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 4, 1, 0, 15, 0, 8, 0, 0, 11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 19, 0,
         3, 18, 0, 7,
     ];
-    const BITSET_INDEX_CHUNKS: &'static [[u8; 16]; 20] = &[
+    static BITSET_INDEX_CHUNKS: [[u8; 16]; 20] = [
         [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
         [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 61, 0, 0],
         [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16, 14, 56, 0],
@@ -360,7 +360,7 @@ pub mod lowercase {
         [16, 72, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
         [65, 41, 55, 12, 77, 63, 18, 1, 7, 64, 76, 20, 73, 74, 4, 45],
     ];
-    const BITSET_CANONICAL: &'static [u64; 56] = &[
+    static BITSET_CANONICAL: [u64; 56] = [
         0b0000000000000000000000000000000000000000000000000000000000000000,
         0b1111111111111111110000000000000000000000000011111111111111111111,
         0b1010101010101010101010101010101010101010101010101010100000000010,
@@ -418,7 +418,7 @@ pub mod lowercase {
         0b1110011001010001001011010010101001001110001001000011000100101001,
         0b1110101111000000000000000000000000001111111111111111111111111100,
     ];
-    const BITSET_MAPPING: &'static [(u8, u8); 22] = &[
+    static BITSET_MAPPING: [(u8, u8); 22] = [
         (0, 64), (1, 188), (1, 186), (1, 183), (1, 176), (1, 109), (1, 124), (1, 126), (1, 66),
         (1, 70), (1, 77), (2, 146), (2, 144), (2, 83), (3, 93), (3, 147), (3, 133), (4, 12), (4, 6),
         (5, 187), (6, 78), (7, 132),
@@ -471,14 +471,14 @@ pub mod n {
 
 #[rustfmt::skip]
 pub mod uppercase {
-    const BITSET_CHUNKS_MAP: &'static [u8; 125] = &[
+    static BITSET_CHUNKS_MAP: [u8; 125] = [
         12, 15, 6, 6, 0, 6, 6, 2, 4, 11, 6, 16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
         6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
         6, 6, 6, 5, 6, 14, 6, 10, 6, 6, 1, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
         6, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 13, 6, 6,
         6, 6, 9, 6, 3,
     ];
-    const BITSET_INDEX_CHUNKS: &'static [[u8; 16]; 17] = &[
+    static BITSET_INDEX_CHUNKS: [[u8; 16]; 17] = [
         [44, 44, 5, 35, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 5, 1],
         [44, 44, 5, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44],
         [44, 44, 40, 44, 44, 44, 44, 44, 17, 17, 63, 17, 43, 29, 24, 23],
@@ -497,7 +497,7 @@ pub mod uppercase {
         [58, 19, 2, 18, 10, 48, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44],
         [58, 38, 17, 27, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44],
     ];
-    const BITSET_CANONICAL: &'static [u64; 44] = &[
+    static BITSET_CANONICAL: [u64; 44] = [
         0b0000011111111111111111111111111000000000000000000000000000000000,
         0b0000000000111111111111111111111111111111111111111111111111111111,
         0b0101010101010101010101010101010101010101010101010101010000000001,
@@ -543,7 +543,7 @@ pub mod uppercase {
         0b1111011111111111000000000000000000000000000000000000000000000000,
         0b1111111100000000111111110000000000111111000000001111111100000000,
     ];
-    const BITSET_MAPPING: &'static [(u8, u8); 25] = &[
+    static BITSET_MAPPING: [(u8, u8); 25] = [
         (0, 187), (0, 177), (0, 171), (0, 167), (0, 164), (0, 32), (0, 47), (0, 51), (0, 121),
         (0, 117), (0, 109), (1, 150), (1, 148), (1, 142), (1, 134), (1, 131), (1, 64), (2, 164),
         (2, 146), (2, 20), (3, 146), (3, 140), (3, 134), (4, 178), (4, 171),

src/tools/compiletest/src/debuggers.rs

@@ -0,0 +1,272 @@
+use std::env;
+use std::ffi::OsString;
+use std::path::PathBuf;
+use std::process::Command;
+use std::sync::Arc;
+
+use crate::common::{Config, Debugger};
+
+pub(crate) fn configure_cdb(config: &Config) -> Option<Arc<Config>> {
+    config.cdb.as_ref()?;
+
+    Some(Arc::new(Config { debugger: Some(Debugger::Cdb), ..config.clone() }))
+}
+
+pub(crate) fn configure_gdb(config: &Config) -> Option<Arc<Config>> {
+    config.gdb_version?;
+
+    if config.matches_env("msvc") {
+        return None;
+    }
+
+    if config.remote_test_client.is_some() && !config.target.contains("android") {
+        println!(
+            "WARNING: debuginfo tests are not available when \
+             testing with remote"
+        );
+        return None;
+    }
+
+    if config.target.contains("android") {
+        println!(
+            "{} debug-info test uses tcp 5039 port.\
+             please reserve it",
+            config.target
+        );
+
+        // android debug-info test uses remote debugger so, we test 1 thread
+        // at once as they're all sharing the same TCP port to communicate
+        // over.
+        //
+        // we should figure out how to lift this restriction! (run them all
+        // on different ports allocated dynamically).
+        env::set_var("RUST_TEST_THREADS", "1");
+    }
+
+    Some(Arc::new(Config { debugger: Some(Debugger::Gdb), ..config.clone() }))
+}
+
+pub(crate) fn configure_lldb(config: &Config) -> Option<Arc<Config>> {
+    config.lldb_python_dir.as_ref()?;
+
+    if let Some(350) = config.lldb_version {
+        println!(
+            "WARNING: The used version of LLDB (350) has a \
+             known issue that breaks debuginfo tests. See \
+             issue #32520 for more information. Skipping all \
+             LLDB-based tests!",
+        );
+        return None;
+    }
+
+    Some(Arc::new(Config { debugger: Some(Debugger::Lldb), ..config.clone() }))
+}
+
+/// Returns `true` if the given target is an Android target for the
+/// purposes of GDB testing.
+pub(crate) fn is_android_gdb_target(target: &str) -> bool {
+    matches!(
+        &target[..],
+        "arm-linux-androideabi" | "armv7-linux-androideabi" | "aarch64-linux-android"
+    )
+}
+
+/// Returns `true` if the given target is a MSVC target for the purposes of CDB testing.
+fn is_pc_windows_msvc_target(target: &str) -> bool {
+    target.ends_with("-pc-windows-msvc")
+}
+
+fn find_cdb(target: &str) -> Option<OsString> {
+    if !(cfg!(windows) && is_pc_windows_msvc_target(target)) {
+        return None;
+    }
+
+    let pf86 = env::var_os("ProgramFiles(x86)").or_else(|| env::var_os("ProgramFiles"))?;
+    let cdb_arch = if cfg!(target_arch = "x86") {
+        "x86"
+    } else if cfg!(target_arch = "x86_64") {
+        "x64"
+    } else if cfg!(target_arch = "aarch64") {
+        "arm64"
+    } else if cfg!(target_arch = "arm") {
+        "arm"
+    } else {
+        return None; // No compatible CDB.exe in the Windows 10 SDK
+    };
+
+    let mut path = PathBuf::new();
+    path.push(pf86);
+    path.push(r"Windows Kits\10\Debuggers"); // We could check 8.1 etc. too?
+    path.push(cdb_arch);
+    path.push(r"cdb.exe");
+
+    if !path.exists() {
+        return None;
+    }
+
+    Some(path.into_os_string())
+}
+
+/// Returns Path to CDB
+pub(crate) fn analyze_cdb(
+    cdb: Option<String>,
+    target: &str,
+) -> (Option<OsString>, Option<[u16; 4]>) {
+    let cdb = cdb.map(OsString::from).or_else(|| find_cdb(target));
+
+    let mut version = None;
+    if let Some(cdb) = cdb.as_ref() {
+        if let Ok(output) = Command::new(cdb).arg("/version").output() {
+            if let Some(first_line) = String::from_utf8_lossy(&output.stdout).lines().next() {
+                version = extract_cdb_version(&first_line);
+            }
+        }
+    }
+
+    (cdb, version)
+}
+
+pub(crate) fn extract_cdb_version(full_version_line: &str) -> Option<[u16; 4]> {
+    // Example full_version_line: "cdb version 10.0.18362.1"
+    let version = full_version_line.rsplit(' ').next()?;
+    let mut components = version.split('.');
+    let major: u16 = components.next().unwrap().parse().unwrap();
+    let minor: u16 = components.next().unwrap().parse().unwrap();
+    let patch: u16 = components.next().unwrap_or("0").parse().unwrap();
+    let build: u16 = components.next().unwrap_or("0").parse().unwrap();
+    Some([major, minor, patch, build])
+}
+
+/// Returns (Path to GDB, GDB Version)
+pub(crate) fn analyze_gdb(
+    gdb: Option<String>,
+    target: &str,
+    android_cross_path: &PathBuf,
+) -> (Option<String>, Option<u32>) {
+    #[cfg(not(windows))]
+    const GDB_FALLBACK: &str = "gdb";
+    #[cfg(windows)]
+    const GDB_FALLBACK: &str = "gdb.exe";
+
+    let fallback_gdb = || {
+        if is_android_gdb_target(target) {
+            let mut gdb_path = match android_cross_path.to_str() {
+                Some(x) => x.to_owned(),
+                None => panic!("cannot find android cross path"),
+            };
+            gdb_path.push_str("/bin/gdb");
+            gdb_path
+        } else {
+            GDB_FALLBACK.to_owned()
+        }
+    };
+
+    let gdb = match gdb {
+        None => fallback_gdb(),
+        Some(ref s) if s.is_empty() => fallback_gdb(), // may be empty if configure found no gdb
+        Some(ref s) => s.to_owned(),
+    };
+
+    let mut version_line = None;
+    if let Ok(output) = Command::new(&gdb).arg("--version").output() {
+        if let Some(first_line) = String::from_utf8_lossy(&output.stdout).lines().next() {
+            version_line = Some(first_line.to_string());
+        }
+    }
+
+    let version = match version_line {
+        Some(line) => extract_gdb_version(&line),
+        None => return (None, None),
+    };
+
+    (Some(gdb), version)
+}
+
+pub(crate) fn extract_gdb_version(full_version_line: &str) -> Option<u32> {
+    let full_version_line = full_version_line.trim();
+
+    // GDB versions look like this: "major.minor.patch?.yyyymmdd?", with both
+    // of the ? sections being optional
+
+    // We will parse up to 3 digits for each component, ignoring the date
+
+    // We skip text in parentheses.  This avoids accidentally parsing
+    // the openSUSE version, which looks like:
+    //  GNU gdb (GDB; openSUSE Leap 15.0) 8.1
+    // This particular form is documented in the GNU coding standards:
+    // https://www.gnu.org/prep/standards/html_node/_002d_002dversion.html#g_t_002d_002dversion
+
+    let unbracketed_part = full_version_line.split('[').next().unwrap();
+    let mut splits = unbracketed_part.trim_end().rsplit(' ');
+    let version_string = splits.next().unwrap();
+
+    let mut splits = version_string.split('.');
+    let major = splits.next().unwrap();
+    let minor = splits.next().unwrap();
+    let patch = splits.next();
+
+    let major: u32 = major.parse().unwrap();
+    let (minor, patch): (u32, u32) = match minor.find(not_a_digit) {
+        None => {
+            let minor = minor.parse().unwrap();
+            let patch: u32 = match patch {
+                Some(patch) => match patch.find(not_a_digit) {
+                    None => patch.parse().unwrap(),
+                    Some(idx) if idx > 3 => 0,
+                    Some(idx) => patch[..idx].parse().unwrap(),
+                },
+                None => 0,
+            };
+            (minor, patch)
+        }
+        // There is no patch version after minor-date (e.g. "4-2012").
+        Some(idx) => {
+            let minor = minor[..idx].parse().unwrap();
+            (minor, 0)
+        }
+    };
+
+    Some(((major * 1000) + minor) * 1000 + patch)
+}
+
+/// Returns LLDB version
+pub(crate) fn extract_lldb_version(full_version_line: &str) -> Option<u32> {
+    // Extract the major LLDB version from the given version string.
+    // LLDB version strings are different for Apple and non-Apple platforms.
+    // The Apple variant looks like this:
+    //
+    // LLDB-179.5 (older versions)
+    // lldb-300.2.51 (new versions)
+    //
+    // We are only interested in the major version number, so this function
+    // will return `Some(179)` and `Some(300)` respectively.
+    //
+    // Upstream versions look like:
+    // lldb version 6.0.1
+    //
+    // There doesn't seem to be a way to correlate the Apple version
+    // with the upstream version, and since the tests were originally
+    // written against Apple versions, we make a fake Apple version by
+    // multiplying the first number by 100. This is a hack.
+
+    let full_version_line = full_version_line.trim();
+
+    if let Some(apple_ver) =
+        full_version_line.strip_prefix("LLDB-").or_else(|| full_version_line.strip_prefix("lldb-"))
+    {
+        if let Some(idx) = apple_ver.find(not_a_digit) {
+            let version: u32 = apple_ver[..idx].parse().unwrap();
+            return Some(version);
+        }
+    } else if let Some(lldb_ver) = full_version_line.strip_prefix("lldb version ") {
+        if let Some(idx) = lldb_ver.find(not_a_digit) {
+            let version: u32 = lldb_ver[..idx].parse().ok()?;
+            return Some(version * 100);
+        }
+    }
+    None
+}
+
+fn not_a_digit(c: char) -> bool {
+    !c.is_ascii_digit()
+}

src/tools/compiletest/src/header.rs

@@ -9,11 +9,11 @@ use std::process::Command;
 use tracing::*;
 
 use crate::common::{Config, Debugger, FailMode, Mode, PassMode};
+use crate::debuggers::{extract_cdb_version, extract_gdb_version};
 use crate::header::auxiliary::{AuxProps, parse_and_update_aux};
 use crate::header::cfg::{MatchOutcome, parse_cfg_name_directive};
 use crate::header::needs::CachedNeedsConditions;
 use crate::util::static_regex;
-use crate::{extract_cdb_version, extract_gdb_version};
 
 pub(crate) mod auxiliary;
 mod cfg;
@@ -57,9 +57,9 @@ impl EarlyProps {
             &mut poisoned,
             testfile,
             rdr,
-            &mut |HeaderLine { directive: ln, .. }| {
+            &mut |DirectiveLine { directive: ln, .. }| {
                 parse_and_update_aux(config, ln, &mut props.aux);
-                config.parse_and_update_revisions(ln, &mut props.revisions);
+                config.parse_and_update_revisions(testfile, ln, &mut props.revisions);
             },
         );
 
@@ -344,7 +344,7 @@ impl TestProps {
                 &mut poisoned,
                 testfile,
                 file,
-                &mut |HeaderLine { header_revision, directive: ln, .. }| {
+                &mut |DirectiveLine { header_revision, directive: ln, .. }| {
                     if header_revision.is_some() && header_revision != test_revision {
                         return;
                     }
@@ -391,7 +391,7 @@ impl TestProps {
                         has_edition = true;
                     }
 
-                    config.parse_and_update_revisions(ln, &mut self.revisions);
+                    config.parse_and_update_revisions(testfile, ln, &mut self.revisions);
 
                     if let Some(flags) = config.parse_name_value_directive(ln, RUN_FLAGS) {
                         self.run_flags.extend(split_flags(&flags));
@@ -680,7 +680,7 @@ impl TestProps {
 
 /// Extract an `(Option<line_revision>, directive)` directive from a line if comment is present.
 ///
-/// See [`HeaderLine`] for a diagram.
+/// See [`DirectiveLine`] for a diagram.
 pub fn line_directive<'line>(
     comment: &str,
     original_line: &'line str,
@@ -738,17 +738,13 @@ const KNOWN_JSONDOCCK_DIRECTIVE_NAMES: &[&str] =
 /// ```text
 /// //@ compile-flags: -O
 ///     ^^^^^^^^^^^^^^^^^ directive
-/// ^^^^^^^^^^^^^^^^^^^^^ original_line
 ///
 /// //@ [foo] compile-flags: -O
 ///      ^^^                    header_revision
 ///           ^^^^^^^^^^^^^^^^^ directive
-/// ^^^^^^^^^^^^^^^^^^^^^^^^^^^ original_line
 /// ```
-struct HeaderLine<'ln> {
+struct DirectiveLine<'ln> {
     line_number: usize,
-    /// Raw line from the test file, including comment prefix and any revision.
-    original_line: &'ln str,
     /// Some header directives start with a revision name in square brackets
     /// (e.g. `[foo]`), and only apply to that revision of the test.
     /// If present, this field contains the revision name (e.g. `foo`).
@@ -803,7 +799,7 @@ fn iter_header(
     poisoned: &mut bool,
     testfile: &Path,
     rdr: impl Read,
-    it: &mut dyn FnMut(HeaderLine<'_>),
+    it: &mut dyn FnMut(DirectiveLine<'_>),
 ) {
     if testfile.is_dir() {
         return;
@@ -824,7 +820,7 @@ fn iter_header(
         ];
         // Process the extra implied directives, with a dummy line number of 0.
         for directive in extra_directives {
-            it(HeaderLine { line_number: 0, original_line: "", header_revision: None, directive });
+            it(DirectiveLine { line_number: 0, header_revision: None, directive });
         }
     }
 
@@ -841,11 +837,6 @@ fn iter_header(
         if rdr.read_line(&mut ln).unwrap() == 0 {
             break;
         }
-
-        // Assume that any directives will be found before the first
-        // module or function. This doesn't seem to be an optimization
-        // with a warm page cache. Maybe with a cold one.
-        let original_line = &ln;
         let ln = ln.trim();
 
         // Assume that any directives will be found before the first module or function. This
@@ -897,22 +888,30 @@ fn iter_header(
             }
         }
 
-        it(HeaderLine {
+        it(DirectiveLine {
             line_number,
-            original_line,
             header_revision,
             directive: non_revisioned_directive_line,
         });
     }
 }
 
 impl Config {
-    fn parse_and_update_revisions(&self, line: &str, existing: &mut Vec<String>) {
+    fn parse_and_update_revisions(&self, testfile: &Path, line: &str, existing: &mut Vec<String>) {
         if let Some(raw) = self.parse_name_value_directive(line, "revisions") {
+            if self.mode == Mode::RunMake {
+                panic!("`run-make` tests do not support revisions: {}", testfile.display());
+            }
+
             let mut duplicates: HashSet<_> = existing.iter().cloned().collect();
             for revision in raw.split_whitespace().map(|r| r.to_string()) {
                 if !duplicates.insert(revision.clone()) {
-                    panic!("Duplicate revision: `{}` in line `{}`", revision, raw);
+                    panic!(
+                        "duplicate revision: `{}` in line `{}`: {}",
+                        revision,
+                        raw,
+                        testfile.display()
+                    );
                 }
                 existing.push(revision);
             }
@@ -1286,13 +1285,14 @@ pub fn make_test_description<R: Read>(
 
     let mut local_poisoned = false;
 
+    // Scan through the test file to handle `ignore-*`, `only-*`, and `needs-*` directives.
     iter_header(
         config.mode,
         &config.suite,
         &mut local_poisoned,
         path,
         src,
-        &mut |HeaderLine { header_revision, original_line, directive: ln, line_number }| {
+        &mut |DirectiveLine { header_revision, directive: ln, line_number }| {
             if header_revision.is_some() && header_revision != test_revision {
                 return;
             }
@@ -1317,17 +1317,7 @@ pub fn make_test_description<R: Read>(
                 };
             }
 
-            if let Some((_, post)) = original_line.trim_start().split_once("//") {
-                let post = post.trim_start();
-                if post.starts_with("ignore-tidy") {
-                    // Not handled by compiletest.
-                } else {
-                    decision!(cfg::handle_ignore(config, ln));
-                }
-            } else {
-                decision!(cfg::handle_ignore(config, ln));
-            }
-
+            decision!(cfg::handle_ignore(config, ln));
             decision!(cfg::handle_only(config, ln));
             decision!(needs::handle_needs(&cache.needs, config, ln));
             decision!(ignore_llvm(config, ln));

src/tools/compiletest/src/header/tests.rs

@@ -423,7 +423,7 @@ fn test_extract_version_range() {
 }
 
 #[test]
-#[should_panic(expected = "Duplicate revision: `rpass1` in line ` rpass1 rpass1`")]
+#[should_panic(expected = "duplicate revision: `rpass1` in line ` rpass1 rpass1`")]
 fn test_duplicate_revisions() {
     let config: Config = cfg().build();
     parse_rs(&config, "//@ revisions: rpass1 rpass1");

src/tools/compiletest/src/lib.rs

@@ -10,6 +10,7 @@ mod tests;
 
 pub mod common;
 pub mod compute_diff;
+mod debuggers;
 pub mod errors;
 pub mod header;
 mod json;
@@ -36,8 +37,8 @@ use walkdir::WalkDir;
 
 use self::header::{EarlyProps, make_test_description};
 use crate::common::{
-    Config, Debugger, Mode, PassMode, TestPaths, UI_EXTENSIONS, expected_output_path,
-    output_base_dir, output_relative_path,
+    Config, Mode, PassMode, TestPaths, UI_EXTENSIONS, expected_output_path, output_base_dir,
+    output_relative_path,
 };
 use crate::header::HeadersCache;
 use crate::util::logv;
@@ -204,9 +205,11 @@ pub fn parse_config(args: Vec<String>) -> Config {
 
     let target = opt_str2(matches.opt_str("target"));
     let android_cross_path = opt_path(matches, "android-cross-path");
-    let (cdb, cdb_version) = analyze_cdb(matches.opt_str("cdb"), &target);
-    let (gdb, gdb_version) = analyze_gdb(matches.opt_str("gdb"), &target, &android_cross_path);
-    let lldb_version = matches.opt_str("lldb-version").as_deref().and_then(extract_lldb_version);
+    let (cdb, cdb_version) = debuggers::analyze_cdb(matches.opt_str("cdb"), &target);
+    let (gdb, gdb_version) =
+        debuggers::analyze_gdb(matches.opt_str("gdb"), &target, &android_cross_path);
+    let lldb_version =
+        matches.opt_str("lldb-version").as_deref().and_then(debuggers::extract_lldb_version);
     let color = match matches.opt_str("color").as_deref() {
         Some("auto") | None => ColorConfig::AutoColor,
         Some("always") => ColorConfig::AlwaysColor,
@@ -443,9 +446,9 @@ pub fn run_tests(config: Arc<Config>) {
     if let Mode::DebugInfo = config.mode {
         // Debugging emscripten code doesn't make sense today
         if !config.target.contains("emscripten") {
-            configs.extend(configure_cdb(&config));
-            configs.extend(configure_gdb(&config));
-            configs.extend(configure_lldb(&config));
+            configs.extend(debuggers::configure_cdb(&config));
+            configs.extend(debuggers::configure_gdb(&config));
+            configs.extend(debuggers::configure_lldb(&config));
         }
     } else {
         configs.push(config.clone());
@@ -498,62 +501,6 @@ pub fn run_tests(config: Arc<Config>) {
     }
 }
 
-fn configure_cdb(config: &Config) -> Option<Arc<Config>> {
-    config.cdb.as_ref()?;
-
-    Some(Arc::new(Config { debugger: Some(Debugger::Cdb), ..config.clone() }))
-}
-
-fn configure_gdb(config: &Config) -> Option<Arc<Config>> {
-    config.gdb_version?;
-
-    if config.matches_env("msvc") {
-        return None;
-    }
-
-    if config.remote_test_client.is_some() && !config.target.contains("android") {
-        println!(
-            "WARNING: debuginfo tests are not available when \
-             testing with remote"
-        );
-        return None;
-    }
-
-    if config.target.contains("android") {
-        println!(
-            "{} debug-info test uses tcp 5039 port.\
-             please reserve it",
-            config.target
-        );
-
-        // android debug-info test uses remote debugger so, we test 1 thread
-        // at once as they're all sharing the same TCP port to communicate
-        // over.
-        //
-        // we should figure out how to lift this restriction! (run them all
-        // on different ports allocated dynamically).
-        env::set_var("RUST_TEST_THREADS", "1");
-    }
-
-    Some(Arc::new(Config { debugger: Some(Debugger::Gdb), ..config.clone() }))
-}
-
-fn configure_lldb(config: &Config) -> Option<Arc<Config>> {
-    config.lldb_python_dir.as_ref()?;
-
-    if let Some(350) = config.lldb_version {
-        println!(
-            "WARNING: The used version of LLDB (350) has a \
-             known issue that breaks debuginfo tests. See \
-             issue #32520 for more information. Skipping all \
-             LLDB-based tests!",
-        );
-        return None;
-    }
-
-    Some(Arc::new(Config { debugger: Some(Debugger::Lldb), ..config.clone() }))
-}
-
 pub fn test_opts(config: &Config) -> test::TestOpts {
     if env::var("RUST_TEST_NOCAPTURE").is_ok() {
         eprintln!(
@@ -981,212 +928,6 @@ fn make_test_closure(
     }))
 }
 
-/// Returns `true` if the given target is an Android target for the
-/// purposes of GDB testing.
-fn is_android_gdb_target(target: &str) -> bool {
-    matches!(
-        &target[..],
-        "arm-linux-androideabi" | "armv7-linux-androideabi" | "aarch64-linux-android"
-    )
-}
-
-/// Returns `true` if the given target is a MSVC target for the purposes of CDB testing.
-fn is_pc_windows_msvc_target(target: &str) -> bool {
-    target.ends_with("-pc-windows-msvc")
-}
-
-fn find_cdb(target: &str) -> Option<OsString> {
-    if !(cfg!(windows) && is_pc_windows_msvc_target(target)) {
-        return None;
-    }
-
-    let pf86 = env::var_os("ProgramFiles(x86)").or_else(|| env::var_os("ProgramFiles"))?;
-    let cdb_arch = if cfg!(target_arch = "x86") {
-        "x86"
-    } else if cfg!(target_arch = "x86_64") {
-        "x64"
-    } else if cfg!(target_arch = "aarch64") {
-        "arm64"
-    } else if cfg!(target_arch = "arm") {
-        "arm"
-    } else {
-        return None; // No compatible CDB.exe in the Windows 10 SDK
-    };
-
-    let mut path = PathBuf::new();
-    path.push(pf86);
-    path.push(r"Windows Kits\10\Debuggers"); // We could check 8.1 etc. too?
-    path.push(cdb_arch);
-    path.push(r"cdb.exe");
-
-    if !path.exists() {
-        return None;
-    }
-
-    Some(path.into_os_string())
-}
-
-/// Returns Path to CDB
-fn analyze_cdb(cdb: Option<String>, target: &str) -> (Option<OsString>, Option<[u16; 4]>) {
-    let cdb = cdb.map(OsString::from).or_else(|| find_cdb(target));
-
-    let mut version = None;
-    if let Some(cdb) = cdb.as_ref() {
-        if let Ok(output) = Command::new(cdb).arg("/version").output() {
-            if let Some(first_line) = String::from_utf8_lossy(&output.stdout).lines().next() {
-                version = extract_cdb_version(&first_line);
-            }
-        }
-    }
-
-    (cdb, version)
-}
-
-fn extract_cdb_version(full_version_line: &str) -> Option<[u16; 4]> {
-    // Example full_version_line: "cdb version 10.0.18362.1"
-    let version = full_version_line.rsplit(' ').next()?;
-    let mut components = version.split('.');
-    let major: u16 = components.next().unwrap().parse().unwrap();
-    let minor: u16 = components.next().unwrap().parse().unwrap();
-    let patch: u16 = components.next().unwrap_or("0").parse().unwrap();
-    let build: u16 = components.next().unwrap_or("0").parse().unwrap();
-    Some([major, minor, patch, build])
-}
-
-/// Returns (Path to GDB, GDB Version)
-fn analyze_gdb(
-    gdb: Option<String>,
-    target: &str,
-    android_cross_path: &PathBuf,
-) -> (Option<String>, Option<u32>) {
-    #[cfg(not(windows))]
-    const GDB_FALLBACK: &str = "gdb";
-    #[cfg(windows)]
-    const GDB_FALLBACK: &str = "gdb.exe";
-
-    let fallback_gdb = || {
-        if is_android_gdb_target(target) {
-            let mut gdb_path = match android_cross_path.to_str() {
-                Some(x) => x.to_owned(),
-                None => panic!("cannot find android cross path"),
-            };
-            gdb_path.push_str("/bin/gdb");
-            gdb_path
-        } else {
-            GDB_FALLBACK.to_owned()
-        }
-    };
-
-    let gdb = match gdb {
-        None => fallback_gdb(),
-        Some(ref s) if s.is_empty() => fallback_gdb(), // may be empty if configure found no gdb
-        Some(ref s) => s.to_owned(),
-    };
-
-    let mut version_line = None;
-    if let Ok(output) = Command::new(&gdb).arg("--version").output() {
-        if let Some(first_line) = String::from_utf8_lossy(&output.stdout).lines().next() {
-            version_line = Some(first_line.to_string());
-        }
-    }
-
-    let version = match version_line {
-        Some(line) => extract_gdb_version(&line),
-        None => return (None, None),
-    };
-
-    (Some(gdb), version)
-}
-
-fn extract_gdb_version(full_version_line: &str) -> Option<u32> {
-    let full_version_line = full_version_line.trim();
-
-    // GDB versions look like this: "major.minor.patch?.yyyymmdd?", with both
-    // of the ? sections being optional
-
-    // We will parse up to 3 digits for each component, ignoring the date
-
-    // We skip text in parentheses.  This avoids accidentally parsing
-    // the openSUSE version, which looks like:
-    //  GNU gdb (GDB; openSUSE Leap 15.0) 8.1
-    // This particular form is documented in the GNU coding standards:
-    // https://www.gnu.org/prep/standards/html_node/_002d_002dversion.html#g_t_002d_002dversion
-
-    let unbracketed_part = full_version_line.split('[').next().unwrap();
-    let mut splits = unbracketed_part.trim_end().rsplit(' ');
-    let version_string = splits.next().unwrap();
-
-    let mut splits = version_string.split('.');
-    let major = splits.next().unwrap();
-    let minor = splits.next().unwrap();
-    let patch = splits.next();
-
-    let major: u32 = major.parse().unwrap();
-    let (minor, patch): (u32, u32) = match minor.find(not_a_digit) {
-        None => {
-            let minor = minor.parse().unwrap();
-            let patch: u32 = match patch {
-                Some(patch) => match patch.find(not_a_digit) {
-                    None => patch.parse().unwrap(),
-                    Some(idx) if idx > 3 => 0,
-                    Some(idx) => patch[..idx].parse().unwrap(),
-                },
-                None => 0,
-            };
-            (minor, patch)
-        }
-        // There is no patch version after minor-date (e.g. "4-2012").
-        Some(idx) => {
-            let minor = minor[..idx].parse().unwrap();
-            (minor, 0)
-        }
-    };
-
-    Some(((major * 1000) + minor) * 1000 + patch)
-}
-
-/// Returns LLDB version
-fn extract_lldb_version(full_version_line: &str) -> Option<u32> {
-    // Extract the major LLDB version from the given version string.
-    // LLDB version strings are different for Apple and non-Apple platforms.
-    // The Apple variant looks like this:
-    //
-    // LLDB-179.5 (older versions)
-    // lldb-300.2.51 (new versions)
-    //
-    // We are only interested in the major version number, so this function
-    // will return `Some(179)` and `Some(300)` respectively.
-    //
-    // Upstream versions look like:
-    // lldb version 6.0.1
-    //
-    // There doesn't seem to be a way to correlate the Apple version
-    // with the upstream version, and since the tests were originally
-    // written against Apple versions, we make a fake Apple version by
-    // multiplying the first number by 100. This is a hack.
-
-    let full_version_line = full_version_line.trim();
-
-    if let Some(apple_ver) =
-        full_version_line.strip_prefix("LLDB-").or_else(|| full_version_line.strip_prefix("lldb-"))
-    {
-        if let Some(idx) = apple_ver.find(not_a_digit) {
-            let version: u32 = apple_ver[..idx].parse().unwrap();
-            return Some(version);
-        }
-    } else if let Some(lldb_ver) = full_version_line.strip_prefix("lldb version ") {
-        if let Some(idx) = lldb_ver.find(not_a_digit) {
-            let version: u32 = lldb_ver[..idx].parse().ok()?;
-            return Some(version * 100);
-        }
-    }
-    None
-}
-
-fn not_a_digit(c: char) -> bool {
-    !c.is_ascii_digit()
-}
-
 fn check_overlapping_tests(found_paths: &HashSet<PathBuf>) {
     let mut collisions = Vec::new();
     for path in found_paths {

src/tools/compiletest/src/runtest.rs

@@ -318,10 +318,29 @@ impl<'test> TestCx<'test> {
         }
     }
 
-    fn check_if_test_should_compile(&self, proc_res: &ProcRes, pm: Option<PassMode>) {
-        if self.should_compile_successfully(pm) {
+    fn check_if_test_should_compile(
+        &self,
+        fail_mode: Option<FailMode>,
+        pass_mode: Option<PassMode>,
+        proc_res: &ProcRes,
+    ) {
+        if self.should_compile_successfully(pass_mode) {
             if !proc_res.status.success() {
-                self.fatal_proc_rec("test compilation failed although it shouldn't!", proc_res);
+                match (fail_mode, pass_mode) {
+                    (Some(FailMode::Build), Some(PassMode::Check)) => {
+                        // A `build-fail` test needs to `check-pass`.
+                        self.fatal_proc_rec(
+                            "`build-fail` test is required to pass check build, but check build failed",
+                            proc_res,
+                        );
+                    }
+                    _ => {
+                        self.fatal_proc_rec(
+                            "test compilation failed although it shouldn't!",
+                            proc_res,
+                        );
+                    }
+                }
             }
         } else {
             if proc_res.status.success() {

src/tools/compiletest/src/runtest/debuginfo.rs

@@ -9,8 +9,8 @@ use tracing::debug;
 use super::debugger::DebuggerCommands;
 use super::{Debugger, Emit, ProcRes, TestCx, Truncated, WillExecute};
 use crate::common::Config;
+use crate::debuggers::{extract_gdb_version, is_android_gdb_target};
 use crate::util::logv;
-use crate::{extract_gdb_version, is_android_gdb_target};
 
 impl TestCx<'_> {
     pub(super) fn run_debuginfo_test(&self) {

src/tools/compiletest/src/runtest/incremental.rs

@@ -1,4 +1,4 @@
-use super::{TestCx, WillExecute};
+use super::{FailMode, TestCx, WillExecute};
 use crate::errors;
 
 impl TestCx<'_> {
@@ -96,7 +96,7 @@ impl TestCx<'_> {
     fn run_cfail_test(&self) {
         let pm = self.pass_mode();
         let proc_res = self.compile_test(WillExecute::No, self.should_emit_metadata(pm));
-        self.check_if_test_should_compile(&proc_res, pm);
+        self.check_if_test_should_compile(Some(FailMode::Build), pm, &proc_res);
         self.check_no_compiler_crash(&proc_res, self.props.should_ice);
 
         let output_to_check = self.get_output(&proc_res);

src/tools/compiletest/src/runtest/ui.rs

@@ -18,14 +18,14 @@ impl TestCx<'_> {
             let pm = Some(PassMode::Check);
             let proc_res =
                 self.compile_test_general(WillExecute::No, Emit::Metadata, pm, Vec::new());
-            self.check_if_test_should_compile(&proc_res, pm);
+            self.check_if_test_should_compile(self.props.fail_mode, pm, &proc_res);
         }
 
         let pm = self.pass_mode();
         let should_run = self.should_run(pm);
         let emit_metadata = self.should_emit_metadata(pm);
         let proc_res = self.compile_test(should_run, emit_metadata);
-        self.check_if_test_should_compile(&proc_res, pm);
+        self.check_if_test_should_compile(self.props.fail_mode, pm, &proc_res);
         if matches!(proc_res.truncated, Truncated::Yes)
             && !self.props.dont_check_compiler_stdout
             && !self.props.dont_check_compiler_stderr

src/tools/compiletest/src/tests.rs

@@ -1,5 +1,8 @@
-use super::header::extract_llvm_version;
-use super::*;
+use std::ffi::OsString;
+
+use crate::debuggers::{extract_gdb_version, extract_lldb_version};
+use crate::header::extract_llvm_version;
+use crate::is_test;
 
 #[test]
 fn test_extract_gdb_version() {

src/tools/unicode-table-generator/src/raw_emitter.rs

@@ -77,15 +77,15 @@ impl RawEmitter {
 
         writeln!(
             &mut self.file,
-            "const BITSET_CANONICAL: &'static [u64; {}] = &[{}];",
+            "static BITSET_CANONICAL: [u64; {}] = [{}];",
             canonicalized.canonical_words.len(),
             fmt_list(canonicalized.canonical_words.iter().map(|v| Bits(*v))),
         )
         .unwrap();
         self.bytes_used += 8 * canonicalized.canonical_words.len();
         writeln!(
             &mut self.file,
-            "const BITSET_MAPPING: &'static [(u8, u8); {}] = &[{}];",
+            "static BITSET_MAPPING: [(u8, u8); {}] = [{}];",
             canonicalized.canonicalized_words.len(),
             fmt_list(&canonicalized.canonicalized_words),
         )
@@ -139,15 +139,15 @@ impl RawEmitter {
 
         writeln!(
             &mut self.file,
-            "const BITSET_CHUNKS_MAP: &'static [u8; {}] = &[{}];",
+            "static BITSET_CHUNKS_MAP: [u8; {}] = [{}];",
             chunk_indices.len(),
             fmt_list(&chunk_indices),
         )
         .unwrap();
         self.bytes_used += chunk_indices.len();
         writeln!(
             &mut self.file,
-            "const BITSET_INDEX_CHUNKS: &'static [[u8; {}]; {}] = &[{}];",
+            "static BITSET_INDEX_CHUNKS: [[u8; {}]; {}] = [{}];",
             chunk_length,
             chunks.len(),
             fmt_list(chunks.iter()),