Rollup of 5 pull requests

compiler/rustc_const_eval/src/const_eval/machine.rs

@@ -641,7 +641,14 @@ impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> {
                 // current number of evaluated terminators is a power of 2. The latter gives us a cheap
                 // way to implement exponential backoff.
                 let span = ecx.cur_span();
-                ecx.tcx.dcx().emit_warn(LongRunningWarn { span, item_span: ecx.tcx.span });
+                // We store a unique number in `force_duplicate` to evade `-Z deduplicate-diagnostics`.
+                // `new_steps` is guaranteed to be unique because `ecx.machine.num_evaluated_steps` is
+                // always increasing.
+                ecx.tcx.dcx().emit_warn(LongRunningWarn {
+                    span,
+                    item_span: ecx.tcx.span,
+                    force_duplicate: new_steps,
+                });
             }
         }
 

compiler/rustc_const_eval/src/errors.rs

@@ -209,6 +209,8 @@ pub struct LongRunningWarn {
     pub span: Span,
     #[help]
     pub item_span: Span,
+    // Used for evading `-Z deduplicate-diagnostics`.
+    pub force_duplicate: usize,
 }
 
 #[derive(Subdiagnostic)]

library/std/src/lib.rs

@@ -32,13 +32,17 @@
 //!
 //! Once you are familiar with the contents of the standard library you may
 //! begin to find the verbosity of the prose distracting. At this stage in your
-//! development you may want to press the `[-]` button near the top of the
-//! page to collapse it into a more skimmable view.
-//!
-//! While you are looking at that `[-]` button also notice the `source`
-//! link. Rust's API documentation comes with the source code and you are
-//! encouraged to read it. The standard library source is generally high
-//! quality and a peek behind the curtains is often enlightening.
+//! development you may want to press the <code>
+//! <svg width="0.75rem" height="0.75rem" viewBox="0 0 12 12"
+//! stroke="currentColor" fill="none">
+//! <path d="M2,2l4,4l4,-4M2,6l4,4l4,-4"/></svg> Summary</code> button near the
+//! top of the page to collapse it into a more skimmable view.
+//!
+//! While you are looking at the top of the page, also notice the
+//! <code>source</code> link. Rust's API documentation comes with the source
+//! code and you are encouraged to read it. The standard library source is
+//! generally high quality and a peek behind the curtains is
+//! often enlightening.
 //!
 //! # What is in the standard library documentation?
 //!

src/bootstrap/src/core/build_steps/compile.rs

@@ -1057,6 +1057,10 @@ pub fn rustc_cargo(
     // killed, rather than having an error bubble up and cause a panic.
     cargo.rustflag("-Zon-broken-pipe=kill");
 
+    if builder.config.llvm_enzyme {
+        cargo.rustflag("-l").rustflag("Enzyme-19");
+    }
+
     // We currently don't support cross-crate LTO in stage0. This also isn't hugely necessary
     // and may just be a time sink.
     if compiler.stage != 0 {

src/bootstrap/src/core/builder.rs

@@ -1592,12 +1592,6 @@ impl<'a> Builder<'a> {
             rustflags.arg(sysroot_str);
         }
 
-        // https://rust-lang.zulipchat.com/#narrow/stream/182449-t-compiler.2Fhelp/topic/.E2.9C.94.20link.20new.20library.20into.20stage1.2Frustc
-        if self.config.llvm_enzyme {
-            rustflags.arg("-l");
-            rustflags.arg("Enzyme-19");
-        }
-
         let use_new_symbol_mangling = match self.config.rust_new_symbol_mangling {
             Some(setting) => {
                 // If an explicit setting is given, use that

src/librustdoc/html/markdown.rs

@@ -261,7 +261,9 @@ impl<'a, I: Iterator<Item = Event<'a>>> Iterator for CodeBlocks<'_, 'a, I> {
                                  </pre>\
                              </div>",
                                 added_classes = added_classes.join(" "),
-                                text = Escape(&original_text),
+                                text = Escape(
+                                    original_text.strip_suffix('\n').unwrap_or(&original_text)
+                                ),
                             )
                             .into(),
                         ));

src/librustdoc/html/markdown/tests.rs

@@ -524,15 +524,13 @@ fn test_ascii_with_prepending_hashtag() {
 ####.###..#....#....#..#.
 #..#.#....#....#....#..#.
 #..#.#....#....#....#..#.
-#..#.####.####.####..##..
-</code></pre></div>",
+#..#.####.####.####..##..</code></pre></div>",
     );
     t(
         r#"```markdown
 # hello
 ```"#,
         "<div class=\"example-wrap\"><pre class=\"language-markdown\"><code>\
-# hello
-</code></pre></div>",
+# hello</code></pre></div>",
     );
 }

src/librustdoc/html/sources.rs

@@ -26,8 +26,11 @@ pub(crate) fn render(cx: &mut Context<'_>, krate: &clean::Crate) -> Result<(), E
 
     let dst = cx.dst.join("src").join(krate.name(cx.tcx()).as_str());
     cx.shared.ensure_dir(&dst)?;
+    let crate_name = krate.name(cx.tcx());
+    let crate_name = crate_name.as_str();
 
-    let mut collector = SourceCollector { dst, cx, emitted_local_sources: FxHashSet::default() };
+    let mut collector =
+        SourceCollector { dst, cx, emitted_local_sources: FxHashSet::default(), crate_name };
     collector.visit_crate(krate);
     Ok(())
 }
@@ -115,6 +118,8 @@ struct SourceCollector<'a, 'tcx> {
     /// Root destination to place all HTML output into
     dst: PathBuf,
     emitted_local_sources: FxHashSet<PathBuf>,
+
+    crate_name: &'a str,
 }
 
 impl DocVisitor for SourceCollector<'_, '_> {
@@ -210,19 +215,22 @@ impl SourceCollector<'_, '_> {
             },
         );
 
+        let src_fname = p.file_name().expect("source has no filename").to_os_string();
+        let mut fname = src_fname.clone();
+
         let root_path = PathBuf::from("../../").join(root_path.into_inner());
         let mut root_path = root_path.to_string_lossy();
         if let Some(c) = root_path.as_bytes().last()
             && *c != b'/'
         {
             root_path += "/";
         }
+        let mut file_path = Path::new(&self.crate_name).join(&*cur.borrow());
+        file_path.push(&fname);
+        fname.push(".html");
         let mut cur = self.dst.join(cur.into_inner());
         shared.ensure_dir(&cur)?;
 
-        let src_fname = p.file_name().expect("source has no filename").to_os_string();
-        let mut fname = src_fname.clone();
-        fname.push(".html");
         cur.push(&fname);
 
         let title = format!("{} - source", src_fname.to_string_lossy());
@@ -250,7 +258,7 @@ impl SourceCollector<'_, '_> {
                     cx,
                     &root_path,
                     highlight::DecorationInfo::default(),
-                    SourceContext::Standalone,
+                    SourceContext::Standalone { file_path },
                 )
             },
             &shared.style_files,
@@ -312,10 +320,11 @@ struct ScrapedSource<'a, Code: std::fmt::Display> {
 struct Source<Code: std::fmt::Display> {
     lines: RangeInclusive<usize>,
     code_html: Code,
+    file_path: Option<(String, String)>,
 }
 
 pub(crate) enum SourceContext<'a> {
-    Standalone,
+    Standalone { file_path: PathBuf },
     Embedded(ScrapedInfo<'a>),
 }
 
@@ -344,9 +353,19 @@ pub(crate) fn print_src(
     });
     let lines = s.lines().count();
     match source_context {
-        SourceContext::Standalone => {
-            Source { lines: (1..=lines), code_html: code }.render_into(&mut writer).unwrap()
+        SourceContext::Standalone { file_path } => Source {
+            lines: (1..=lines),
+            code_html: code,
+            file_path: if let Some(file_name) = file_path.file_name()
+                && let Some(file_path) = file_path.parent()
+            {
+                Some((file_path.display().to_string(), file_name.display().to_string()))
+            } else {
+                None
+            },
         }
+        .render_into(&mut writer)
+        .unwrap(),
         SourceContext::Embedded(info) => {
             let lines = (1 + info.offset)..=(lines + info.offset);
             ScrapedSource { info, lines, code_html: code }.render_into(&mut writer).unwrap();

src/librustdoc/html/static/css/noscript.css

@@ -61,6 +61,8 @@ nav.sub {
 	--copy-path-img-hover-filter: invert(35%);
 	--code-example-button-color: #7f7f7f;
 	--code-example-button-hover-color: #595959;
+	--settings-menu-filter: invert(50%);
+	--settings-menu-hover-filter: invert(35%);
 	--codeblock-error-hover-color: rgb(255, 0, 0);
 	--codeblock-error-color: rgba(255, 0, 0, .5);
 	--codeblock-ignore-hover-color: rgb(255, 142, 0);
@@ -87,7 +89,6 @@ nav.sub {
 	--search-tab-button-not-selected-background: #e6e6e6;
 	--search-tab-button-selected-border-top-color: #0089ff;
 	--search-tab-button-selected-background: #fff;
-	--settings-menu-filter: none;
 	--stab-background-color: #fff5d6;
 	--stab-code-color: #000;
 	--code-highlight-kw-color: #8959a8;
@@ -192,6 +193,8 @@ nav.sub {
 		--search-tab-button-not-selected-background: #252525;
 		--search-tab-button-selected-border-top-color: #0089ff;
 		--search-tab-button-selected-background: #353535;
+		--settings-menu-filter: invert(50%);
+		--settings-menu-hover-filter: invert(65%);
 		--stab-background-color: #314559;
 		--stab-code-color: #e6e1cf;
 		--code-highlight-kw-color: #ab8ac1;