Merge ref '69d4d5fc0e4d' from rust-lang/rust

Pull recent changes from https://github.com/rust-lang/rust via Josh.

Upstream ref: 69d4d5f
Filtered ref: 55f7a9f34e7b6dccf3ed08a163109a5e83c36b85
Upstream diff: 8401398...69d4d5f

This merge was created using https://github.com/rust-lang/josh-sync.

Author: The rustc-josh-sync Cronjob Bot

.github/workflows/post-merge.yml

@@ -6,7 +6,7 @@ name: Post merge analysis
 on:
   push:
     branches:
-      - master
+      - main
 
 jobs:
   analysis:

.gitignore

@@ -48,7 +48,7 @@ no_llvm_build
 /llvm/
 /mingw-build/
 /build
-/build-rust-analyzer/
+/build-rust-analyzer
 /dist/
 /unicode-downloads
 /target

Cargo.lock

@@ -80,9 +80,9 @@ dependencies = [
 
 [[package]]
 name = "annotate-snippets"
-version = "0.12.8"
+version = "0.12.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "025c7edcdffa4ccc5c0905f472a0ae3759378cfbef88ef518a3575e19ae3aebd"
+checksum = "a44baf24dd94e781f74dfe67ffee75a09a57971ddf0f615a178b4f6d404b48ff"
 dependencies = [
  "anstyle",
  "unicode-width 0.2.2",
@@ -1288,7 +1288,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "778e2ac28f6c47af28e4907f13ffd1e1ddbd400980a9abd7c8df189bf578a5ad"
 dependencies = [
  "libc",
- "windows-sys 0.52.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -2154,7 +2154,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "07033963ba89ebaf1584d767badaa2e8fcec21aedea6b8c0346d487d49c28667"
 dependencies = [
  "cfg-if",
- "windows-targets 0.52.6",
+ "windows-targets 0.53.3",
 ]
 
 [[package]]
@@ -3766,7 +3766,7 @@ dependencies = [
 name = "rustc_errors"
 version = "0.0.0"
 dependencies = [
- "annotate-snippets 0.12.8",
+ "annotate-snippets 0.12.9",
  "anstream",
  "anstyle",
  "derive_setters",
@@ -4905,7 +4905,7 @@ dependencies = [
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys 0.52.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -5273,9 +5273,9 @@ dependencies = [
 
 [[package]]
 name = "stringdex"
-version = "0.0.2"
+version = "0.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "18b3bd4f10d15ef859c40291769f0d85209de6b0f1c30713ff9cdf45ac43ea36"
+checksum = "556a6126952cb2f5150057c98a77cc6c771027dea2825bf7fa03d3d638b0a4f8"
 dependencies = [
  "stacker",
 ]
@@ -6070,9 +6070,9 @@ dependencies = [
 
 [[package]]
 name = "wasi-preview1-component-adapter-provider"
-version = "37.0.2"
+version = "38.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d0fcd636ad2b29a7c0490799a23ad61d1c8dedfafdb970447fddd0549502b60"
+checksum = "7ec3ef3783e18f2457796ed91b1e6c2adc46f2905f740d1527ab3053fe8e5682"
 
 [[package]]
 name = "wasm-bindgen"
@@ -6134,17 +6134,17 @@ dependencies = [
 
 [[package]]
 name = "wasm-component-ld"
-version = "0.5.18"
+version = "0.5.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "11f565dfcfd9aabb10d865b608a92ce1f93051aeb56f4c89550ed9cd97d8ce0e"
+checksum = "4bfc50dd0b883d841bc1dba5ff7020ca52fa7b2c3bb1266d8bf6a09dd032e115"
 dependencies = [
  "anyhow",
  "clap",
  "lexopt",
  "libc",
  "tempfile",
  "wasi-preview1-component-adapter-provider",
- "wasmparser 0.240.0",
+ "wasmparser 0.241.2",
  "wat",
  "windows-sys 0.61.2",
  "winsplit",
@@ -6171,24 +6171,24 @@ dependencies = [
 
 [[package]]
 name = "wasm-encoder"
-version = "0.240.0"
+version = "0.241.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06d642d8c5ecc083aafe9ceb32809276a304547a3a6eeecceb5d8152598bc71f"
+checksum = "e01164c9dda68301e34fdae536c23ed6fe90ce6d97213ccc171eebbd3d02d6b8"
 dependencies = [
  "leb128fmt",
- "wasmparser 0.240.0",
+ "wasmparser 0.241.2",
 ]
 
 [[package]]
 name = "wasm-metadata"
-version = "0.240.0"
+version = "0.241.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee093e1e1ccffa005b9b778f7a10ccfd58e25a20eccad294a1a93168d076befb"
+checksum = "876fe286f2fa416386deedebe8407e6f19e0b5aeaef3d03161e77a15fa80f167"
 dependencies = [
  "anyhow",
  "indexmap",
- "wasm-encoder 0.240.0",
- "wasmparser 0.240.0",
+ "wasm-encoder 0.241.2",
+ "wasmparser 0.241.2",
 ]
 
 [[package]]
@@ -6213,9 +6213,9 @@ dependencies = [
 
 [[package]]
 name = "wasmparser"
-version = "0.240.0"
+version = "0.241.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b722dcf61e0ea47440b53ff83ccb5df8efec57a69d150e4f24882e4eba7e24a4"
+checksum = "46d90019b1afd4b808c263e428de644f3003691f243387d30d673211ee0cb8e8"
 dependencies = [
  "bitflags",
  "hashbrown",
@@ -6226,22 +6226,22 @@ dependencies = [
 
 [[package]]
 name = "wast"
-version = "240.0.0"
+version = "241.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b0efe1c93db4ac562b9733e3dca19ed7fc878dba29aef22245acf84f13da4a19"
+checksum = "63f66e07e2ddf531fef6344dbf94d112df7c2f23ed6ffb10962e711500b8d816"
 dependencies = [
  "bumpalo",
  "leb128fmt",
  "memchr",
  "unicode-width 0.2.2",
- "wasm-encoder 0.240.0",
+ "wasm-encoder 0.241.2",
 ]
 
 [[package]]
 name = "wat"
-version = "1.240.0"
+version = "1.241.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ec9b6eab7ecd4d639d78515e9ea491c9bacf494aa5eda10823bd35992cf8c1e"
+checksum = "45f923705c40830af909c5dec2352ec2821202e4a66008194585e1917458a26d"
 dependencies = [
  "wast",
 ]
@@ -6679,9 +6679,9 @@ dependencies = [
 
 [[package]]
 name = "wit-component"
-version = "0.240.0"
+version = "0.241.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7dc5474b078addc5fe8a72736de8da3acfb3ff324c2491133f8b59594afa1a20"
+checksum = "1fd0c57df25e7ee612d946d3b7646c1ddb2310f8280aa2c17e543b66e0812241"
 dependencies = [
  "anyhow",
  "bitflags",
@@ -6690,17 +6690,17 @@ dependencies = [
  "serde",
  "serde_derive",
  "serde_json",
- "wasm-encoder 0.240.0",
+ "wasm-encoder 0.241.2",
  "wasm-metadata",
- "wasmparser 0.240.0",
+ "wasmparser 0.241.2",
  "wit-parser",
 ]
 
 [[package]]
 name = "wit-parser"
-version = "0.240.0"
+version = "0.241.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9875ea3fa272f57cc1fc50f225a7b94021a7878c484b33792bccad0d93223439"
+checksum = "09ef1c6ad67f35c831abd4039c02894de97034100899614d1c44e2268ad01c91"
 dependencies = [
  "anyhow",
  "id-arena",
@@ -6711,7 +6711,7 @@ dependencies = [
  "serde_derive",
  "serde_json",
  "unicode-xid",
- "wasmparser 0.240.0",
+ "wasmparser 0.241.2",
 ]
 
 [[package]]

bootstrap.example.toml

@@ -59,7 +59,10 @@
 # toolchain or changing LLVM locally, you probably want to leave this enabled.
 #
 # Set this to `true` to download if CI llvm available otherwise it builds
-# from `src/llvm-project`.
+# from `src/llvm-project`. If you set it to `true`, it's safe and time-saving to run
+# `git submodule deinit src/llvm-project` to avoid git updating the llvm-project submodule
+# when building compiler locally.
+#
 #
 # Set this to `"if-unchanged"` to download only if the llvm-project has not
 # been modified. You can also use this if you are unsure whether you're on a
@@ -320,7 +323,7 @@
 #build.npm = "npm"
 
 # Python interpreter to use for various tasks throughout the build, notably
-# rustdoc tests, the lldb python interpreter, and some dist bits and pieces.
+# rustdoc tests, and some dist bits and pieces.
 #
 # Defaults to the Python interpreter used to execute x.py.
 #build.python = "python"

compiler/rustc_abi/src/extern_abi.rs

@@ -269,13 +269,56 @@ impl ExternAbi {
             | Self::Aapcs { .. }
             | Self::Win64 { .. }
             | Self::SysV64 { .. }
-            | Self::EfiApi => CVariadicStatus::Stable,
-            Self::System { .. } => {
-                CVariadicStatus::Unstable { feature: rustc_span::sym::extern_system_varargs }
-            }
+            | Self::EfiApi
+            | Self::System { .. } => CVariadicStatus::Stable,
             _ => CVariadicStatus::NotSupported,
         }
     }
+
+    /// Returns whether the ABI supports guaranteed tail calls.
+    #[cfg(feature = "nightly")]
+    pub fn supports_guaranteed_tail_call(self) -> bool {
+        match self {
+            Self::CmseNonSecureCall | Self::CmseNonSecureEntry => {
+                // See https://godbolt.org/z/9jhdeqErv. The CMSE calling conventions clear registers
+                // before returning, and hence cannot guarantee a tail call.
+                false
+            }
+            Self::AvrInterrupt
+            | Self::AvrNonBlockingInterrupt
+            | Self::Msp430Interrupt
+            | Self::RiscvInterruptM
+            | Self::RiscvInterruptS
+            | Self::X86Interrupt => {
+                // See https://godbolt.org/z/Edfjnxxcq. Interrupts cannot be called directly.
+                false
+            }
+            Self::GpuKernel | Self::PtxKernel => {
+                // See https://godbolt.org/z/jq5TE5jK1.
+                false
+            }
+            Self::Custom => {
+                // This ABI does not support calls at all (except via assembly).
+                false
+            }
+            Self::C { .. }
+            | Self::System { .. }
+            | Self::Rust
+            | Self::RustCall
+            | Self::RustCold
+            | Self::RustInvalid
+            | Self::Unadjusted
+            | Self::EfiApi
+            | Self::Aapcs { .. }
+            | Self::Cdecl { .. }
+            | Self::Stdcall { .. }
+            | Self::Fastcall { .. }
+            | Self::Thiscall { .. }
+            | Self::Vectorcall { .. }
+            | Self::SysV64 { .. }
+            | Self::Win64 { .. } => true,
+        }
+    }
 }
 
 pub fn all_names() -> Vec<&'static str> {

compiler/rustc_ast/src/ast.rs

@@ -648,9 +648,10 @@ impl Pat {
             PatKind::Path(qself, path) => TyKind::Path(qself.clone(), path.clone()),
             PatKind::MacCall(mac) => TyKind::MacCall(mac.clone()),
             // `&mut? P` can be reinterpreted as `&mut? T` where `T` is `P` reparsed as a type.
-            PatKind::Ref(pat, mutbl) => {
-                pat.to_ty().map(|ty| TyKind::Ref(None, MutTy { ty, mutbl: *mutbl }))?
-            }
+            PatKind::Ref(pat, pinned, mutbl) => pat.to_ty().map(|ty| match pinned {
+                Pinnedness::Not => TyKind::Ref(None, MutTy { ty, mutbl: *mutbl }),
+                Pinnedness::Pinned => TyKind::PinnedRef(None, MutTy { ty, mutbl: *mutbl }),
+            })?,
             // A slice/array pattern `[P]` can be reparsed as `[T]`, an unsized array,
             // when `P` can be reparsed as a type `T`.
             PatKind::Slice(pats) if let [pat] = pats.as_slice() => {
@@ -696,7 +697,7 @@ impl Pat {
             // Trivial wrappers over inner patterns.
             PatKind::Box(s)
             | PatKind::Deref(s)
-            | PatKind::Ref(s, _)
+            | PatKind::Ref(s, _, _)
             | PatKind::Paren(s)
             | PatKind::Guard(s, _) => s.walk(it),
 
@@ -717,7 +718,7 @@ impl Pat {
     /// Strip off all reference patterns (`&`, `&mut`) and return the inner pattern.
     pub fn peel_refs(&self) -> &Pat {
         let mut current = self;
-        while let PatKind::Ref(inner, _) = &current.kind {
+        while let PatKind::Ref(inner, _, _) = &current.kind {
             current = inner;
         }
         current
@@ -765,7 +766,9 @@ impl Pat {
             PatKind::Missing => unreachable!(),
             PatKind::Wild => Some("_".to_string()),
             PatKind::Ident(BindingMode::NONE, ident, None) => Some(format!("{ident}")),
-            PatKind::Ref(pat, mutbl) => pat.descr().map(|d| format!("&{}{d}", mutbl.prefix_str())),
+            PatKind::Ref(pat, pinned, mutbl) => {
+                pat.descr().map(|d| format!("&{}{d}", pinned.prefix_str(*mutbl)))
+            }
             _ => None,
         }
     }
@@ -913,7 +916,7 @@ pub enum PatKind {
     Deref(Box<Pat>),
 
     /// A reference pattern (e.g., `&mut (a, b)`).
-    Ref(Box<Pat>, Mutability),
+    Ref(Box<Pat>, Pinnedness, Mutability),
 
     /// A literal, const block or path.
     Expr(Box<Expr>),