Merge from rustc

Author: The Miri Conjob Bot

Cargo.lock

@@ -4525,6 +4525,7 @@ dependencies = [
  "rustc_middle",
  "rustc_span",
  "rustc_target",
+ "scoped-tls",
  "stable_mir",
  "tracing",
 ]

compiler/rustc_attr/messages.ftl

@@ -58,6 +58,9 @@ attr_invalid_repr_hint_no_paren =
 attr_invalid_repr_hint_no_value =
     invalid representation hint: `{$name}` does not take a value
 
+attr_invalid_since =
+    'since' must be a Rust version number, such as "1.31.0"
+
 attr_missing_feature =
     missing 'feature'
 

compiler/rustc_attr/src/builtin.rs

@@ -3,6 +3,7 @@
 use rustc_ast::{self as ast, attr};
 use rustc_ast::{Attribute, LitKind, MetaItem, MetaItemKind, MetaItemLit, NestedMetaItem, NodeId};
 use rustc_ast_pretty::pprust;
+use rustc_errors::ErrorGuaranteed;
 use rustc_feature::{find_gated_cfg, is_builtin_attr_name, Features, GatedCfg};
 use rustc_macros::HashStable_Generic;
 use rustc_session::config::ExpectedValues;
@@ -361,25 +362,32 @@ fn parse_stability(sess: &Session, attr: &Attribute) -> Option<(Symbol, Stabilit
         }
     }
 
-    if let Some(s) = since
-        && s.as_str() == VERSION_PLACEHOLDER
-    {
-        since = Some(rust_version_symbol());
-    }
+    let feature = match feature {
+        Some(feature) if rustc_lexer::is_ident(feature.as_str()) => Ok(feature),
+        Some(_bad_feature) => {
+            Err(sess.emit_err(session_diagnostics::NonIdentFeature { span: attr.span }))
+        }
+        None => Err(sess.emit_err(session_diagnostics::MissingFeature { span: attr.span })),
+    };
+
+    let since = if let Some(since) = since {
+        if since.as_str() == VERSION_PLACEHOLDER {
+            Ok(rust_version_symbol())
+        } else if parse_version(since.as_str(), false).is_some() {
+            Ok(since)
+        } else {
+            Err(sess.emit_err(session_diagnostics::InvalidSince { span: attr.span }))
+        }
+    } else {
+        Err(sess.emit_err(session_diagnostics::MissingSince { span: attr.span }))
+    };
 
     match (feature, since) {
-        (Some(feature), Some(since)) => {
+        (Ok(feature), Ok(since)) => {
             let level = StabilityLevel::Stable { since, allowed_through_unstable_modules: false };
             Some((feature, level))
         }
-        (None, _) => {
-            sess.emit_err(session_diagnostics::MissingFeature { span: attr.span });
-            None
-        }
-        _ => {
-            sess.emit_err(session_diagnostics::MissingSince { span: attr.span });
-            None
-        }
+        (Err(ErrorGuaranteed { .. }), _) | (_, Err(ErrorGuaranteed { .. })) => None,
     }
 }
 
@@ -451,12 +459,19 @@ fn parse_unstability(sess: &Session, attr: &Attribute) -> Option<(Symbol, Stabil
         }
     }
 
-    match (feature, reason, issue) {
-        (Some(feature), reason, Some(_)) => {
-            if !rustc_lexer::is_ident(feature.as_str()) {
-                sess.emit_err(session_diagnostics::NonIdentFeature { span: attr.span });
-                return None;
-            }
+    let feature = match feature {
+        Some(feature) if rustc_lexer::is_ident(feature.as_str()) => Ok(feature),
+        Some(_bad_feature) => {
+            Err(sess.emit_err(session_diagnostics::NonIdentFeature { span: attr.span }))
+        }
+        None => Err(sess.emit_err(session_diagnostics::MissingFeature { span: attr.span })),
+    };
+
+    let issue =
+        issue.ok_or_else(|| sess.emit_err(session_diagnostics::MissingIssue { span: attr.span }));
+
+    match (feature, issue) {
+        (Ok(feature), Ok(_)) => {
             let level = StabilityLevel::Unstable {
                 reason: UnstableReason::from_opt_reason(reason),
                 issue: issue_num,
@@ -465,14 +480,7 @@ fn parse_unstability(sess: &Session, attr: &Attribute) -> Option<(Symbol, Stabil
             };
             Some((feature, level))
         }
-        (None, _, _) => {
-            sess.emit_err(session_diagnostics::MissingFeature { span: attr.span });
-            return None;
-        }
-        _ => {
-            sess.emit_err(session_diagnostics::MissingIssue { span: attr.span });
-            return None;
-        }
+        (Err(ErrorGuaranteed { .. }), _) | (_, Err(ErrorGuaranteed { .. })) => None,
     }
 }
 

compiler/rustc_attr/src/session_diagnostics.rs

@@ -370,6 +370,13 @@ pub(crate) struct ExpectsFeatures {
     pub name: String,
 }
 
+#[derive(Diagnostic)]
+#[diag(attr_invalid_since)]
+pub(crate) struct InvalidSince {
+    #[primary_span]
+    pub span: Span,
+}
+
 #[derive(Diagnostic)]
 #[diag(attr_soft_no_args)]
 pub(crate) struct SoftNoArgs {

compiler/rustc_borrowck/src/renumber.rs

@@ -81,6 +81,10 @@ impl<'a, 'tcx> MutVisitor<'tcx> for RegionRenumberer<'a, 'tcx> {
 
     #[instrument(skip(self), level = "debug")]
     fn visit_ty(&mut self, ty: &mut Ty<'tcx>, ty_context: TyContext) {
+        if matches!(ty_context, TyContext::ReturnTy(_)) {
+            // We will renumber the return ty when called again with `TyContext::LocalDecl`
+            return;
+        }
         *ty = self.renumber_regions(*ty, || RegionCtxt::TyContext(ty_context));
 
         debug!(?ty);

compiler/rustc_codegen_cranelift/.vscode/settings.json

@@ -33,7 +33,7 @@
             ]
         },
         {
-            "sysroot_src": "./download/sysroot/sysroot_src/library",
+            "sysroot_src": "./build/stdlib/library",
             "crates": [
                 {
                     "root_module": "./example/std_example.rs",

compiler/rustc_codegen_cranelift/Cargo.lock

@@ -45,18 +45,18 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "cranelift-bforest"
-version = "0.101.0"
+version = "0.101.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e5e1df0da8488dd03b34afc134ba84b754d61862cc465932a9e5d07952f661e"
+checksum = "c1512c3bb6b13018e7109fc3ac964bc87b329eaf3a77825d337558d0c7f6f1be"
 dependencies = [
  "cranelift-entity",
 ]
 
 [[package]]
 name = "cranelift-codegen"
-version = "0.101.0"
+version = "0.101.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77a17ca4e699a0aaf49a0c88f6311a864f321048aa63f6b787cab20eb5f93f10"
+checksum = "16cb8fb9220a6ea7a226705a273ab905309ee546267bdf34948d57932d7f0396"
 dependencies = [
  "bumpalo",
  "cranelift-bforest",
@@ -75,39 +75,39 @@ dependencies = [
 
 [[package]]
 name = "cranelift-codegen-meta"
-version = "0.101.0"
+version = "0.101.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "022f2793cdade1d37a1f755ac42938a3f832f533eac6cafc8b26b209544c3c06"
+checksum = "ab3a8d3b0d4745b183da5ea0792b13d79f5c23d6e69ac04761728e2532b56649"
 dependencies = [
  "cranelift-codegen-shared",
 ]
 
 [[package]]
 name = "cranelift-codegen-shared"
-version = "0.101.0"
+version = "0.101.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4d72dbb83c2ad788dec4ad0843070973cb48c35a3ca19b1e7437ac40834fd9c"
+checksum = "524141c8e68f2abc2043de4c2b31f6d9dd42432738c246431d0572a1422a4a84"
 
 [[package]]
 name = "cranelift-control"
-version = "0.101.0"
+version = "0.101.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ae07cf26dcc90d546826d747ac63b6c40c916f34b03e92a6ae0422c28d771b8a"
+checksum = "97513b57c961c713789a03886a57b43e14ebcd204cbaa8ae50ca6c70a8e716b3"
 dependencies = [
  "arbitrary",
 ]
 
 [[package]]
 name = "cranelift-entity"
-version = "0.101.0"
+version = "0.101.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c2fe6b7e49820893691aea497f36257e9d6f52061d8c4758d61d802d5f101a3d"
+checksum = "e3f23d3cf3afa7e45f239702612c76d87964f652a55e28d13ed6d7e20f3479dd"
 
 [[package]]
 name = "cranelift-frontend"
-version = "0.101.0"
+version = "0.101.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "44f497576ca3674581581601b6a55ccc1b43447217648c880e5bce70db3cf659"
+checksum = "554cd4947ec9209b58bf9ae5bf83581b5ddf9128bd967208e334b504a57db54e"
 dependencies = [
  "cranelift-codegen",
  "log",
@@ -117,15 +117,15 @@ dependencies = [
 
 [[package]]
 name = "cranelift-isle"
-version = "0.101.0"
+version = "0.101.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b96aa02eac00fffee13b0cd37d17874ccdb3d5458983041accd825ef78ce6454"
+checksum = "6c1892a439696b6413cb54083806f5fd9fc431768b8de74864b3d9e8b93b124f"
 
 [[package]]
 name = "cranelift-jit"
-version = "0.101.0"
+version = "0.101.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1d6e0e308c873eefc185745a6b21daec2a10f7554c9fb67e334c2d7d756d979"
+checksum = "32209252fb38acaf1662ccd0397907bbe0e92bdb13b6ddbfd2f74e437f83e685"
 dependencies = [
  "anyhow",
  "cranelift-codegen",
@@ -143,9 +143,9 @@ dependencies = [
 
 [[package]]
 name = "cranelift-module"
-version = "0.101.0"
+version = "0.101.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c1aa8ebb06eced4e478c3f94f1d65d4e7c93493f4640057912b27a3e34b84841"
+checksum = "bf42656f5f6df7bfafc4dd7b63a1888b0627c07b43b2cb9aa54e13843fed39eb"
 dependencies = [
  "anyhow",
  "cranelift-codegen",
@@ -154,9 +154,9 @@ dependencies = [
 
 [[package]]
 name = "cranelift-native"
-version = "0.101.0"
+version = "0.101.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2870170ca44054b202c737626607b87be6e35655084bd94a6ff807a5812ba7df"
+checksum = "e0c2d3badd4b9690865f5bb68a71fa94de592fa2df3f3d11a5a062c60c0a107a"
 dependencies = [
  "cranelift-codegen",
  "libc",
@@ -165,9 +165,9 @@ dependencies = [
 
 [[package]]
 name = "cranelift-object"
-version = "0.101.0"
+version = "0.101.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "20647761742d17dabac8205da958910ede78599550e06418a16711a3ee2fc897"
+checksum = "88eca54bbecea3170035168357306e9c779d4a63d8bf036c9e16bd21fdaa69b5"
 dependencies = [
  "anyhow",
  "cranelift-codegen",
@@ -374,9 +374,9 @@ checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
 [[package]]
 name = "wasmtime-jit-icache-coherence"
-version = "14.0.0"
+version = "14.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a3a5dda53ad6993f9b0a2d65fb49e0348a7232a27a8794064122870d6ee19eb2"
+checksum = "9aaf2fa8fd2d6b65abae9b92edfe69254cc5d6b166e342364036c3e347de8da9"
 dependencies = [
  "cfg-if",
  "libc",

compiler/rustc_codegen_cranelift/Cargo.toml

@@ -8,12 +8,12 @@ crate-type = ["dylib"]
 
 [dependencies]
 # These have to be in sync with each other
-cranelift-codegen = { version = "0.101", features = ["unwind", "all-arch"] }
-cranelift-frontend = { version = "0.101" }
-cranelift-module = { version = "0.101" }
-cranelift-native = { version = "0.101" }
-cranelift-jit = { version = "0.101", optional = true }
-cranelift-object = { version = "0.101" }
+cranelift-codegen = { version = "0.101.1", features = ["unwind", "all-arch"] }
+cranelift-frontend = { version = "0.101.1" }
+cranelift-module = { version = "0.101.1" }
+cranelift-native = { version = "0.101.1" }
+cranelift-jit = { version = "0.101.1", optional = true }
+cranelift-object = { version = "0.101.1" }
 target-lexicon = "0.12.0"
 gimli = { version = "0.28", default-features = false, features = ["write"]}
 object = { version = "0.32", default-features = false, features = ["std", "read_core", "write", "archive", "coff", "elf", "macho", "pe"] }

compiler/rustc_codegen_cranelift/Readme.md

@@ -8,7 +8,7 @@ If not please open an issue.
 ## Building and testing
 
 ```bash
-$ git clone https://github.com/bjorn3/rustc_codegen_cranelift
+$ git clone https://github.com/rust-lang/rustc_codegen_cranelift
 $ cd rustc_codegen_cranelift
 $ ./y.sh prepare
 $ ./y.sh build
@@ -29,7 +29,7 @@ Extract the `dist` directory in the archive anywhere you want.
 If you want to use `cargo clif build` instead of having to specify the full path to the `cargo-clif` executable, you can add the `bin` subdirectory of the extracted `dist` directory to your `PATH`.
 (tutorial [for Windows](https://stackoverflow.com/a/44272417), and [for Linux/MacOS](https://unix.stackexchange.com/questions/26047/how-to-correctly-add-a-path-to-path/26059#26059)).
 
-[releases]: https://github.com/bjorn3/rustc_codegen_cranelift/releases/tag/dev
+[releases]: https://github.com/rust-lang/rustc_codegen_cranelift/releases/tag/dev
 
 ## Usage
 
@@ -78,7 +78,7 @@ configuration options.
 
 * Inline assembly ([no cranelift support](https://github.com/bytecodealliance/wasmtime/issues/1041))
     * On UNIX there is support for invoking an external assembler for `global_asm!` and `asm!`.
-* SIMD ([tracked here](https://github.com/bjorn3/rustc_codegen_cranelift/issues/171), `std::simd` fully works, `std::arch` is partially supported)
+* SIMD ([tracked here](https://github.com/rust-lang/rustc_codegen_cranelift/issues/171), `std::simd` fully works, `std::arch` is partially supported)
 * Unwinding on panics ([no cranelift support](https://github.com/bytecodealliance/wasmtime/issues/1677), `-Cpanic=abort` is enabled by default)
 
 ## License

compiler/rustc_codegen_cranelift/example/mini_core_hello_world.rs

@@ -353,6 +353,17 @@ fn main() {
 
     let f = V([0.0, 1.0]);
     let _a = f.0[0];
+
+    stack_val_align();
+}
+
+#[inline(never)]
+fn stack_val_align() {
+    #[repr(align(8192))]
+    struct Foo(u8);
+
+    let a = Foo(0);
+    assert_eq!(&a as *const Foo as usize % 8192, 0);
 }
 
 #[cfg(all(