Merge from rust-lang/rust

Author: lnicola

Cargo.lock

@@ -8,12 +8,12 @@ crate-type = ["dylib"]
 
 [dependencies]
 # These have to be in sync with each other
-cranelift-codegen = { version = "0.120.0", default-features = false, features = ["std", "timing", "unwind", "all-native-arch"] }
-cranelift-frontend = { version = "0.120.0" }
-cranelift-module = { version = "0.120.0" }
-cranelift-native = { version = "0.120.0" }
-cranelift-jit = { version = "0.120.0", optional = true }
-cranelift-object = { version = "0.120.0" }
+cranelift-codegen = { version = "0.121.0", default-features = false, features = ["std", "timing", "unwind", "all-native-arch"] }
+cranelift-frontend = { version = "0.121.0" }
+cranelift-module = { version = "0.121.0" }
+cranelift-native = { version = "0.121.0" }
+cranelift-jit = { version = "0.121.0", optional = true }
+cranelift-object = { version = "0.121.0" }
 target-lexicon = "0.13"
 gimli = { version = "0.31", default-features = false, features = ["write"] }
 object = { version = "0.36", default-features = false, features = ["std", "read_core", "write", "archive", "coff", "elf", "macho", "pe"] }
@@ -24,12 +24,12 @@ smallvec = "1.8.1"
 
 [patch.crates-io]
 # Uncomment to use an unreleased version of cranelift
-#cranelift-codegen = { git = "https://github.com/bytecodealliance/wasmtime.git", branch = "release-33.0.0", version = "0.120.0" }
-#cranelift-frontend = { git = "https://github.com/bytecodealliance/wasmtime.git", branch = "release-33.0.0", version = "0.120.0" }
-#cranelift-module = { git = "https://github.com/bytecodealliance/wasmtime.git", branch = "release-33.0.0", version = "0.120.0" }
-#cranelift-native = { git = "https://github.com/bytecodealliance/wasmtime.git", branch = "release-33.0.0", version = "0.120.0" }
-#cranelift-jit = { git = "https://github.com/bytecodealliance/wasmtime.git", branch = "release-33.0.0", version = "0.120.0" }
-#cranelift-object = { git = "https://github.com/bytecodealliance/wasmtime.git", branch = "release-33.0.0", version = "0.120.0" }
+#cranelift-codegen = { git = "https://github.com/bytecodealliance/wasmtime.git", branch = "release-34.0.0", version = "0.121.0" }
+#cranelift-frontend = { git = "https://github.com/bytecodealliance/wasmtime.git", branch = "release-34.0.0", version = "0.121.0" }
+#cranelift-module = { git = "https://github.com/bytecodealliance/wasmtime.git", branch = "release-34.0.0", version = "0.121.0" }
+#cranelift-native = { git = "https://github.com/bytecodealliance/wasmtime.git", branch = "release-34.0.0", version = "0.121.0" }
+#cranelift-jit = { git = "https://github.com/bytecodealliance/wasmtime.git", branch = "release-34.0.0", version = "0.121.0" }
+#cranelift-object = { git = "https://github.com/bytecodealliance/wasmtime.git", branch = "release-34.0.0", version = "0.121.0" }
 
 # Uncomment to use local checkout of cranelift
 #cranelift-codegen = { path = "../wasmtime/cranelift/codegen" }

Cargo.toml

@@ -6,8 +6,8 @@ use crate::{CodegenBackend, SysrootKind, build_sysroot};
 static ABI_CAFE_REPO: GitRepo = GitRepo::github(
     "Gankra",
     "abi-cafe",
-    "f1220cfd13b57f5c0082c26529163865ee25e115",
-    "fe93a9acd461425d",
+    "94d38030419eb00a1ba80e5e2b4d763dcee58db4",
+    "6efb4457893c8670",
     "abi-cafe",
 );
 
@@ -46,6 +46,10 @@ pub(crate) fn run(
     let mut cmd = ABI_CAFE.run(bootstrap_host_compiler, dirs);
     cmd.arg("--");
 
+    cmd.arg("--debug");
+
+    cmd.arg("--rules").arg(dirs.source_dir.join("scripts/abi-cafe-rules.toml"));
+
     // stdcall, vectorcall and such don't work yet
     cmd.arg("--conventions").arg("c").arg("--conventions").arg("rust");
 

build_system/abi_cafe.rs

@@ -660,7 +660,7 @@ pub mod intrinsics {
     #[rustc_intrinsic]
     pub unsafe fn ctlz_nonzero<T>(x: T) -> u32;
     #[rustc_intrinsic]
-    pub fn needs_drop<T: ?::Sized>() -> bool;
+    pub const fn needs_drop<T: ?::Sized>() -> bool;
     #[rustc_intrinsic]
     pub fn bitreverse<T>(x: T) -> T;
     #[rustc_intrinsic]

example/mini_core.rs

@@ -1,4 +1,13 @@
-#![feature(no_core, lang_items, never_type, linkage, extern_types, thread_local, repr_simd)]
+#![feature(
+    no_core,
+    lang_items,
+    never_type,
+    linkage,
+    extern_types,
+    thread_local,
+    repr_simd,
+    rustc_private
+)]
 #![no_core]
 #![allow(dead_code, non_camel_case_types, internal_features)]
 
@@ -207,10 +216,14 @@ fn main() {
         assert_eq!(intrinsics::align_of::<u16>() as u8, 2);
         assert_eq!(intrinsics::align_of_val(&a) as u8, intrinsics::align_of::<&str>() as u8);
 
-        assert!(!intrinsics::needs_drop::<u8>());
-        assert!(!intrinsics::needs_drop::<[u8]>());
-        assert!(intrinsics::needs_drop::<NoisyDrop>());
-        assert!(intrinsics::needs_drop::<NoisyDropUnsized>());
+        let u8_needs_drop = const { intrinsics::needs_drop::<u8>() };
+        assert!(!u8_needs_drop);
+        let slice_needs_drop = const { intrinsics::needs_drop::<[u8]>() };
+        assert!(!slice_needs_drop);
+        let noisy_drop = const { intrinsics::needs_drop::<NoisyDrop>() };
+        assert!(noisy_drop);
+        let noisy_unsized_drop = const { intrinsics::needs_drop::<NoisyDropUnsized>() };
+        assert!(noisy_unsized_drop);
 
         Unique { pointer: NonNull(1 as *mut &str), _marker: PhantomData } as Unique<dyn SomeTrait>;
 

example/mini_core_hello_world.rs

@@ -1,4 +1,4 @@
 [toolchain]
-channel = "nightly-2025-05-25"
+channel = "nightly-2025-06-24"
 components = ["rust-src", "rustc-dev", "llvm-tools"]
 profile = "minimal"