Auto merge of #105397 - matthiaskrgr:rollup-xv5imz8, r=matthiaskrgr

Rollup of 6 pull requests

Successful merges:

 - #105298 (llvm-wrapper: adapt for an LLVM API change)
 - #105358 (Add a test for #104260)
 - #105380 (add const generics ping files things for me)
 - #105382 (remove an excess `this`)
 - #105388 (rustdoc: remove redundant CSS `.import-item .stab { font-size }`)
 - #105390 (unstable-book: Add `ignore` to `abi_efiapi` example code)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp

@@ -205,7 +205,12 @@ enum class LLVMRustCodeModel {
   None,
 };
 
-static Optional<CodeModel::Model> fromRust(LLVMRustCodeModel Model) {
+#if LLVM_VERSION_LT(16, 0)
+static Optional<CodeModel::Model>
+#else
+static std::optional<CodeModel::Model>
+#endif
+fromRust(LLVMRustCodeModel Model) {
   switch (Model) {
   case LLVMRustCodeModel::Tiny:
     return CodeModel::Tiny;
@@ -638,7 +643,11 @@ LLVMRustOptimize(
     LLVMSelfProfileInitializeCallbacks(PIC,LlvmSelfProfiler,BeforePassCallback,AfterPassCallback);
   }
 
+#if LLVM_VERSION_LT(16, 0)
   Optional<PGOOptions> PGOOpt;
+#else
+  std::optional<PGOOptions> PGOOpt;
+#endif
   if (PGOGenPath) {
     assert(!PGOUsePath && !PGOSampleUsePath);
     PGOOpt = PGOOptions(PGOGenPath, "", "", PGOOptions::IRInstr,

compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp

@@ -17,7 +17,9 @@
 #include "llvm/Pass.h"
 #include "llvm/Bitcode/BitcodeWriter.h"
 #include "llvm/Support/Signals.h"
+#if LLVM_VERSION_LT(16, 0)
 #include "llvm/ADT/Optional.h"
+#endif
 
 #include <iostream>
 
@@ -708,7 +710,11 @@ enum class LLVMRustChecksumKind {
   SHA256,
 };
 
+#if LLVM_VERSION_LT(16, 0)
 static Optional<DIFile::ChecksumKind> fromRust(LLVMRustChecksumKind Kind) {
+#else
+static std::optional<DIFile::ChecksumKind> fromRust(LLVMRustChecksumKind Kind) {
+#endif
   switch (Kind) {
   case LLVMRustChecksumKind::None:
     return None;
@@ -787,8 +793,18 @@ extern "C" LLVMMetadataRef LLVMRustDIBuilderCreateFile(
     const char *Filename, size_t FilenameLen,
     const char *Directory, size_t DirectoryLen, LLVMRustChecksumKind CSKind,
     const char *Checksum, size_t ChecksumLen) {
+
+#if LLVM_VERSION_LT(16, 0)
   Optional<DIFile::ChecksumKind> llvmCSKind = fromRust(CSKind);
+#else
+  std::optional<DIFile::ChecksumKind> llvmCSKind = fromRust(CSKind);
+#endif
+
+#if LLVM_VERSION_LT(16, 0)
   Optional<DIFile::ChecksumInfo<StringRef>> CSInfo{};
+#else
+  std::optional<DIFile::ChecksumInfo<StringRef>> CSInfo{};
+#endif
   if (llvmCSKind)
     CSInfo.emplace(*llvmCSKind, StringRef{Checksum, ChecksumLen});
   return wrap(Builder->createFile(StringRef(Filename, FilenameLen),

compiler/rustc_trait_selection/src/traits/const_evaluatable.rs

@@ -64,7 +64,7 @@ pub fn is_const_evaluatable<'tcx>(
             ty::ConstKind::Expr(_) => {
                 // FIXME(generic_const_exprs): we have a `ConstKind::Expr` which is fully concrete, but
                 // currently it is not possible to evaluate `ConstKind::Expr` so we are unable to tell if it
-                // is evaluatable or not. For now we just ICE until this is implemented this.
+                // is evaluatable or not. For now we just ICE until this is implemented.
                 Err(NotConstEvaluatable::Error(tcx.sess.delay_span_bug(
                     span,
                     "evaluating `ConstKind::Expr` is not currently supported",

src/doc/unstable-book/src/language-features/abi-efiapi.md

@@ -12,7 +12,7 @@ Specification].
 
 Example:
 
-```rust
+```rust,ignore (not-all-targets-support-uefi)
 #![feature(abi_efiapi)]
 
 extern "efiapi" { fn f1(); }

src/librustdoc/html/static/css/rustdoc.css

@@ -1014,7 +1014,6 @@ so that we can apply CSS-filters to change the arrow color in themes */
 .import-item .stab {
 	border-radius: 3px;
 	display: inline-block;
-	font-size: 0.875rem;
 	line-height: 1.2;
 	margin-bottom: 0;
 	margin-left: 0.3125em;

src/test/ui/associated-inherent-types/issue-104260.rs

@@ -0,0 +1,14 @@
+// check-pass
+
+#![feature(inherent_associated_types)]
+#![allow(incomplete_features)]
+
+struct Foo;
+
+impl Foo {
+    type Bar<T> = u8;
+}
+
+fn main() {
+    let a: Foo::Bar<()>;
+}

triagebot.toml

@@ -331,8 +331,16 @@ message = "Some changes occurred to MIR optimizations"
 cc = ["@rust-lang/wg-mir-opt"]
 
 [mentions."compiler/rustc_trait_selection/src/traits/const_evaluatable.rs"]
-message = "Some changes occurred in const_evaluatable.rs"
-cc = ["@lcnr"]
+message = "Some changes occurred in `const_evaluatable.rs`"
+cc = ["@BoxyUwU"]
+
+[mentions."compiler/rustc_middle/src/ty/abstract_const.rs"]
+message = "Some changes occured in `abstract_const.rs`"
+cc = ["@BoxyUwU"]
+
+[mentions."compiler/rustc_ty_utils/src/consts.rs"]
+message = "Some changes occured in `rustc_ty_utils::consts.rs`"
+cc = ["@BoxyUwU"]
 
 [mentions."compiler/rustc_trait_selection/src/traits/engine.rs"]
 message = """