Rollup of 11 pull requests

.gitignore

@@ -46,8 +46,6 @@ no_llvm_build
 /unicode-downloads
 /target
 /src/tools/x/target
-# Generated by compiletest for incremental
-/tmp/
 # Created by default with `src/ci/docker/run.sh`
 /obj/
 

compiler/rustc_lexer/src/unescape.rs

@@ -238,7 +238,7 @@ fn scan_escape(chars: &mut Chars<'_>, mode: Mode) -> Result<char, EscapeError> {
                             c.to_digit(16).ok_or(EscapeError::InvalidCharInUnicodeEscape)?;
                         n_digits += 1;
                         if n_digits > 6 {
-                            // Stop updating value since we're sure that it's is incorrect already.
+                            // Stop updating value since we're sure that it's incorrect already.
                             continue;
                         }
                         let digit = digit as u32;

compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp

@@ -985,7 +985,9 @@ LLVMRustOptimizeWithNewPassManager(
     if (SanitizerOptions->SanitizeAddress) {
       OptimizerLastEPCallbacks.push_back(
         [SanitizerOptions](ModulePassManager &MPM, OptimizationLevel Level) {
+#if LLVM_VERSION_LT(15, 0)
           MPM.addPass(RequireAnalysisPass<ASanGlobalsMetadataAnalysis, Module>());
+#endif
 #if LLVM_VERSION_GE(14, 0)
           AddressSanitizerOptions opts = AddressSanitizerOptions{
             /*CompileKernel=*/false,

compiler/rustc_span/src/source_map.rs

@@ -956,7 +956,7 @@ impl SourceMap {
     }
 
     pub fn generate_fn_name_span(&self, span: Span) -> Option<Span> {
-        let prev_span = self.span_extend_to_prev_str(span, "fn", true, true).unwrap_or(span);
+        let prev_span = self.span_extend_to_prev_str(span, "fn", true, true)?;
         if let Ok(snippet) = self.span_to_snippet(prev_span) {
             debug!(
                 "generate_fn_name_span: span={:?}, prev_span={:?}, snippet={:?}",

library/std/src/lib.rs

@@ -335,7 +335,6 @@
 #![feature(const_ip)]
 #![feature(const_ipv4)]
 #![feature(const_ipv6)]
-#![feature(const_option)]
 #![feature(const_socketaddr)]
 #![feature(thread_local_internals)]
 //

library/std/src/sys/windows/args.rs

@@ -21,6 +21,17 @@ use crate::vec;
 
 use core::iter;
 
+/// This is the const equivalent to `NonZeroU16::new(n).unwrap()`
+///
+/// FIXME: This can be removed once `Option::unwrap` is stably const.
+/// See the `const_option` feature (#67441).
+const fn non_zero_u16(n: u16) -> NonZeroU16 {
+    match NonZeroU16::new(n) {
+        Some(n) => n,
+        None => panic!("called `unwrap` on a `None` value"),
+    }
+}
+
 pub fn args() -> Args {
     // SAFETY: `GetCommandLineW` returns a pointer to a null terminated UTF-16
     // string so it's safe for `WStrUnits` to use.
@@ -58,10 +69,10 @@ fn parse_lp_cmd_line<'a, F: Fn() -> OsString>(
     lp_cmd_line: Option<WStrUnits<'a>>,
     exe_name: F,
 ) -> Vec<OsString> {
-    const BACKSLASH: NonZeroU16 = NonZeroU16::new(b'\\' as u16).unwrap();
-    const QUOTE: NonZeroU16 = NonZeroU16::new(b'"' as u16).unwrap();
-    const TAB: NonZeroU16 = NonZeroU16::new(b'\t' as u16).unwrap();
-    const SPACE: NonZeroU16 = NonZeroU16::new(b' ' as u16).unwrap();
+    const BACKSLASH: NonZeroU16 = non_zero_u16(b'\\' as u16);
+    const QUOTE: NonZeroU16 = non_zero_u16(b'"' as u16);
+    const TAB: NonZeroU16 = non_zero_u16(b'\t' as u16);
+    const SPACE: NonZeroU16 = non_zero_u16(b' ' as u16);
 
     let mut ret_val = Vec::new();
     // If the cmd line pointer is null or it points to an empty string then

src/librustdoc/clean/types.rs

@@ -2161,8 +2161,12 @@ impl Path {
         self.res.def_id()
     }
 
+    pub(crate) fn last_opt(&self) -> Option<Symbol> {
+        self.segments.last().map(|s| s.name)
+    }
+
     pub(crate) fn last(&self) -> Symbol {
-        self.segments.last().expect("segments were empty").name
+        self.last_opt().expect("segments were empty")
     }
 
     pub(crate) fn whole_name(&self) -> String {

src/librustdoc/json/conversions.rs

@@ -666,7 +666,12 @@ impl FromWithTcx<clean::Import> for Import {
             },
             Glob => Import {
                 source: import.source.path.whole_name(),
-                name: import.source.path.last().to_string(),
+                name: import
+                    .source
+                    .path
+                    .last_opt()
+                    .unwrap_or_else(|| Symbol::intern("*"))
+                    .to_string(),
                 id: import.source.did.map(ItemId::from).map(|i| from_item_id(i, tcx)),
                 glob: true,
             },

src/test/rustdoc-json/assoc_type.rs

@@ -0,0 +1,22 @@
+// Regression test for <https://github.com/rust-lang/rust/issues/98547>.
+
+// @has assoc_type.json
+// @has - "$.index[*][?(@.name=='Trait')]"
+// @has - "$.index[*][?(@.name=='AssocType')]"
+// @has - "$.index[*][?(@.name=='S')]"
+// @has - "$.index[*][?(@.name=='S2')]"
+
+pub trait Trait {
+    type AssocType;
+}
+
+impl<T> Trait for T {
+    type AssocType = Self;
+}
+
+pub struct S;
+
+/// Not needed for the #98547 ICE to occur, but added to maximize the chance of
+/// getting an ICE in the future. See
+/// <https://github.com/rust-lang/rust/pull/98548#discussion_r908219164>
+pub struct S2;

src/test/rustdoc-json/glob_import.rs

@@ -0,0 +1,24 @@
+// This is a regression test for <https://github.com/rust-lang/rust/issues/98003>.
+
+#![feature(no_core)]
+#![no_std]
+#![no_core]
+
+// @has glob_import.json
+// @has - "$.index[*][?(@.name=='glob')]"
+// @has - "$.index[*][?(@.kind=='import')].inner.name" \"*\"
+
+
+mod m1 {
+    pub fn f() {}
+}
+mod m2 {
+    pub fn f(_: u8) {}
+}
+
+pub use m1::*;
+pub use m2::*;
+
+pub mod glob {
+    pub use *;
+}

src/test/ui/consts/const-eval/issue-85907.rs

@@ -0,0 +1,7 @@
+const fn hey() -> usize {
+    panic!(123); //~ ERROR argument to `panic!()` in a const context must have type `&str`
+}
+
+fn main() {
+    let _: [u8; hey()] = todo!();
+}

src/test/ui/consts/const-eval/issue-85907.stderr

@@ -0,0 +1,10 @@
+error: argument to `panic!()` in a const context must have type `&str`
+  --> $DIR/issue-85907.rs:2:5
+   |
+LL |     panic!(123);
+   |     ^^^^^^^^^^^
+   |
+   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: aborting due to previous error
+

src/test/ui/extern/auxiliary/issue-80074-macro.rs

@@ -0,0 +1,4 @@
+// edition:2018
+
+macro_rules! foo_ { () => {}; }
+use foo_ as foo;

src/test/ui/extern/issue-80074.rs

@@ -0,0 +1,10 @@
+// edition:2018
+// build-pass
+// aux-crate:issue_80074=issue-80074-macro.rs
+
+#[macro_use]
+extern crate issue_80074;
+
+fn main() {
+    foo!();
+}

src/test/ui/generics/issue-98432.rs

@@ -0,0 +1,9 @@
+struct Struct<T>(T);
+
+impl<T> Struct<T> {
+    const CONST: fn() = || {
+        struct _Obligation where T:; //~ ERROR can't use generic parameters from outer function
+    };
+}
+
+fn main() {}

src/test/ui/generics/issue-98432.stderr

@@ -0,0 +1,14 @@
+error[E0401]: can't use generic parameters from outer function
+  --> $DIR/issue-98432.rs:5:34
+   |
+LL | impl<T> Struct<T> {
+   |      - type parameter from outer function
+LL |     const CONST: fn() = || {
+LL |         struct _Obligation where T:;
+   |                                  ^ use of generic parameter from outer function
+   |
+   = help: try using a local generic parameter instead
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0401`.

src/tools/compiletest/src/main.rs

@@ -351,11 +351,6 @@ pub fn opt_str2(maybestr: Option<String>) -> String {
 }
 
 pub fn run_tests(config: Config) {
-    // FIXME(#33435) Avoid spurious failures in codegen-units/partitioning tests.
-    if let Mode::CodegenUnits = config.mode {
-        let _ = fs::remove_dir_all("tmp/partitioning-tests");
-    }
-
     // If we want to collect rustfix coverage information,
     // we first make sure that the coverage file does not exist.
     // It will be created later on.

triagebot.toml

@@ -244,7 +244,7 @@ cc = ["@rust-lang/miri"]
 
 [mentions."compiler/rustc_mir_transform/src/"]
 message = "Some changes occurred to MIR optimizations"
-cc = ["@rust-lang/mir-opt"]
+cc = ["@rust-lang/wg-mir-opt"]
 
 [mentions."compiler/rustc_trait_selection/src/traits/const_evaluatable.rs"]
 message = "Some changes occurred in const_evaluatable.rs"