rust-lang · bors · Feb 17, 2025 · Feb 16, 2025
diff --git a/tests/assembly/asm/aarch64-types.rs b/tests/assembly/asm/aarch64-types.rs
@@ -11,8 +11,6 @@
 #![crate_type = "rlib"]
 #![no_core]
 #![allow(asm_sub_register, non_camel_case_types)]
-// FIXME(f16_f128): Only needed for FIXME in check! and check_reg!
-#![feature(auto_traits, lang_items)]
 
 extern crate minicore;
 use minicore::*;
@@ -63,12 +61,6 @@ impl Copy for f16x8 {}
 impl Copy for f32x4 {}
 impl Copy for f64x2 {}
 
-// FIXME(f16_f128): Only needed for FIXME in check! and check_reg!
-#[lang = "freeze"]
-unsafe auto trait Freeze {}
-#[lang = "unpin"]
-auto trait Unpin {}
-
 extern "C" {
     fn extern_func();
     static extern_static: u8;

diff --git a/tests/auxiliary/minicore.rs b/tests/auxiliary/minicore.rs
@@ -14,9 +14,20 @@
 //! <https://github.com/rust-lang/rust/blob/c0b5cc9003f6464c11ae1c0662c6a7e06f6f5cab/compiler/rustc_codegen_cranelift/example/mini_core.rs>.
 // ignore-tidy-linelength
 
-#![feature(no_core, lang_items, rustc_attrs, decl_macro, naked_functions, f16, f128)]
+#![feature(
+    no_core,
+    lang_items,
+    auto_traits,
+    freeze_impls,
+    negative_impls,
+    rustc_attrs,
+    decl_macro,
+    naked_functions,
+    f16,
+    f128,
+    asm_experimental_arch
+)]
 #![allow(unused, improper_ctypes_definitions, internal_features)]
-#![feature(asm_experimental_arch)]
 #![no_std]
 #![no_core]
 
@@ -42,6 +53,12 @@ pub trait Copy: Sized {}
 #[lang = "bikeshed_guaranteed_no_drop"]
 pub trait BikeshedGuaranteedNoDrop {}
 
+#[lang = "freeze"]
+pub unsafe auto trait Freeze {}
+
+#[lang = "unpin"]
+pub auto trait Unpin {}
+
 impl_marker_trait!(
     Copy => [
         bool, char,
@@ -83,6 +100,7 @@ impl<T: Copy + ?Sized> Copy for ManuallyDrop<T> {}
 pub struct UnsafeCell<T: ?Sized> {
     value: T,
 }
+impl<T: ?Sized> !Freeze for UnsafeCell<T> {}
 
 #[rustc_builtin_macro]
 pub macro asm("assembly template", $(operands,)* $(options($(option),*))?) {

diff --git a/tests/codegen/abi-win64-zst.rs b/tests/codegen/abi-win64-zst.rs
@@ -1,4 +1,5 @@
 //@ compile-flags: -Z merge-functions=disabled
+//@ add-core-stubs
 
 //@ revisions: windows-gnu
 //@[windows-gnu] compile-flags: --target x86_64-pc-windows-gnu
@@ -13,12 +14,12 @@
 //@[linux] compile-flags: --target x86_64-unknown-linux-gnu
 //@[linux] needs-llvm-components: x86
 
-#![feature(no_core, lang_items, rustc_attrs, abi_vectorcall)]
+#![feature(no_core, rustc_attrs, abi_vectorcall)]
 #![no_core]
 #![crate_type = "lib"]
 
-#[lang = "sized"]
-trait Sized {}
+extern crate minicore;
+use minicore::*;
 
 // Make sure the argument is always passed when explicitly requesting a Windows ABI.
 // Our goal here is to match clang: <https://clang.godbolt.org/z/Wr4jMWq3P>.

diff --git a/tests/codegen/align-byval-alignment-mismatch.rs b/tests/codegen/align-byval-alignment-mismatch.rs
@@ -1,4 +1,5 @@
 // ignore-tidy-linelength
+//@ add-core-stubs
 //@ revisions:i686-linux x86_64-linux
 
 //@[i686-linux] compile-flags: --target i686-unknown-linux-gnu -C panic=abort
@@ -16,18 +17,14 @@
 // on i686-unknown-linux-gnu, since the alignment needs to be increased, and should codegen
 // to a direct call on x86_64-unknown-linux-gnu, where byval alignment matches Rust alignment.
 
-#![feature(no_core, lang_items)]
+#![feature(no_core)]
 #![crate_type = "lib"]
 #![no_std]
 #![no_core]
 #![allow(non_camel_case_types)]
 
-#[lang = "sized"]
-trait Sized {}
-#[lang = "freeze"]
-trait Freeze {}
-#[lang = "copy"]
-trait Copy {}
+extern crate minicore;
+use minicore::*;
 
 // This type has align 1 in Rust, but as a byval argument on i686-linux, it will have align 4.
 #[repr(C)]

diff --git a/tests/codegen/align-byval-vector.rs b/tests/codegen/align-byval-vector.rs
@@ -1,3 +1,4 @@
+//@ add-core-stubs
 //@ revisions:x86-linux x86-darwin
 
 //@[x86-linux] compile-flags: --target i686-unknown-linux-gnu
@@ -7,18 +8,14 @@
 
 // Tests that aggregates containing vector types get their alignment increased to 16 on Darwin.
 
-#![feature(no_core, lang_items, repr_simd, simd_ffi)]
+#![feature(no_core, repr_simd, simd_ffi)]
 #![crate_type = "lib"]
 #![no_std]
 #![no_core]
 #![allow(non_camel_case_types)]
 
-#[lang = "sized"]
-trait Sized {}
-#[lang = "freeze"]
-trait Freeze {}
-#[lang = "copy"]
-trait Copy {}
+extern crate minicore;
+use minicore::*;
 
 #[repr(simd)]
 pub struct i32x4([i32; 4]);

diff --git a/tests/codegen/align-byval.rs b/tests/codegen/align-byval.rs
@@ -1,4 +1,5 @@
 // ignore-tidy-linelength
+//@ add-core-stubs
 //@ revisions:m68k x86_64-linux x86_64-windows i686-linux i686-windows
 
 //@[m68k] compile-flags: --target m68k-unknown-linux-gnu
@@ -16,20 +17,13 @@
 // The only targets that use `byval` are m68k, x86-64, and x86.
 // Note also that Windows mandates a by-ref ABI here, so it does not use byval.
 
-#![feature(no_core, lang_items)]
+#![feature(no_core)]
 #![crate_type = "lib"]
 #![no_std]
 #![no_core]
 
-#[lang = "sized"]
-trait Sized {}
-#[lang = "freeze"]
-trait Freeze {}
-#[lang = "copy"]
-trait Copy {}
-
-impl Copy for i32 {}
-impl Copy for i64 {}
+extern crate minicore;
+use minicore::*;
 
 // This struct can be represented as a pair, so it exercises the OperandValue::Pair
 // codepath in `codegen_argument`.

diff --git a/tests/ui/abi/c-zst.aarch64-darwin.stderr b/tests/ui/abi/c-zst.aarch64-darwin.stderr
@@ -60,7 +60,7 @@ error: fn_abi_of(pass_zst) = FnAbi {
            conv: C,
            can_unwind: false,
        }
-  --> $DIR/c-zst.rs:63:1
+  --> $DIR/c-zst.rs:64:1
    |
 LL | extern "C" fn pass_zst(_: ()) {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

diff --git a/tests/ui/abi/c-zst.powerpc-linux.stderr b/tests/ui/abi/c-zst.powerpc-linux.stderr
@@ -71,7 +71,7 @@ error: fn_abi_of(pass_zst) = FnAbi {
            conv: C,
            can_unwind: false,
        }
-  --> $DIR/c-zst.rs:63:1
+  --> $DIR/c-zst.rs:64:1
    |
 LL | extern "C" fn pass_zst(_: ()) {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

diff --git a/tests/ui/abi/c-zst.rs b/tests/ui/abi/c-zst.rs
@@ -1,3 +1,4 @@
+//@ add-core-stubs
 //@ normalize-stderr: "(abi|pref|unadjusted_abi_align): Align\([1-8] bytes\)" -> "$1: $$SOME_ALIGN"
 /*!
 C doesn't have zero-sized types... except it does.
@@ -52,12 +53,12 @@ extern "C" fn(i32, (), i32);
 //@[x86_64-pc-windows-gnu] needs-llvm-components: x86
 
 
-#![feature(lang_items, no_core, rustc_attrs)]
+#![feature(no_core, rustc_attrs)]
 #![no_core]
 #![crate_type = "lib"]
 
-#[lang = "sized"]
-trait Sized {}
+extern crate minicore;
+use minicore::*;
 
 #[rustc_abi(debug)]
 extern "C" fn pass_zst(_: ()) {} //~ ERROR: fn_abi
diff --git a/tests/ui/abi/c-zst.s390x-linux.stderr b/tests/ui/abi/c-zst.s390x-linux.stderr
@@ -71,7 +71,7 @@ error: fn_abi_of(pass_zst) = FnAbi {
            conv: C,
            can_unwind: false,
        }
-  --> $DIR/c-zst.rs:63:1
+  --> $DIR/c-zst.rs:64:1
    |
 LL | extern "C" fn pass_zst(_: ()) {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

diff --git a/tests/ui/abi/c-zst.sparc64-linux.stderr b/tests/ui/abi/c-zst.sparc64-linux.stderr
@@ -71,7 +71,7 @@ error: fn_abi_of(pass_zst) = FnAbi {
            conv: C,
            can_unwind: false,
        }
-  --> $DIR/c-zst.rs:63:1
+  --> $DIR/c-zst.rs:64:1
    |
 LL | extern "C" fn pass_zst(_: ()) {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

diff --git a/tests/ui/abi/c-zst.x86_64-linux.stderr b/tests/ui/abi/c-zst.x86_64-linux.stderr
@@ -60,7 +60,7 @@ error: fn_abi_of(pass_zst) = FnAbi {
            conv: C,
            can_unwind: false,
        }
-  --> $DIR/c-zst.rs:63:1
+  --> $DIR/c-zst.rs:64:1
    |
 LL | extern "C" fn pass_zst(_: ()) {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

diff --git a/tests/ui/abi/c-zst.x86_64-pc-windows-gnu.stderr b/tests/ui/abi/c-zst.x86_64-pc-windows-gnu.stderr
@@ -71,7 +71,7 @@ error: fn_abi_of(pass_zst) = FnAbi {
            conv: C,
            can_unwind: false,
        }
-  --> $DIR/c-zst.rs:63:1
+  --> $DIR/c-zst.rs:64:1
    |
 LL | extern "C" fn pass_zst(_: ()) {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

diff --git a/tests/ui/simd-abi-checks-empty-list.rs b/tests/ui/simd-abi-checks-empty-list.rs
@@ -1,15 +1,14 @@
+//@ add-core-stubs
 //@ needs-llvm-components: sparc
 //@ compile-flags: --target=sparc-unknown-none-elf --crate-type=rlib
 //@ build-pass
 //@ ignore-pass (test emits codegen-time warnings)
 #![no_core]
-#![feature(no_core, lang_items, repr_simd)]
+#![feature(no_core, repr_simd)]
 #![allow(improper_ctypes_definitions)]
-#[lang = "sized"]
-trait Sized {}
 
-#[lang = "copy"]
-trait Copy {}
+extern crate minicore;
+use minicore::*;
 
 #[repr(simd)]
 pub struct SimdVec([i32; 4]);

diff --git a/tests/ui/simd-abi-checks-empty-list.stderr b/tests/ui/simd-abi-checks-empty-list.stderr
@@ -1,5 +1,5 @@
 warning: this function definition uses SIMD vector type `SimdVec` which is not currently supported with the chosen ABI
-  --> $DIR/simd-abi-checks-empty-list.rs:17:1
+  --> $DIR/simd-abi-checks-empty-list.rs:16:1
    |
 LL | pub extern "C" fn pass_by_vec(_: SimdVec) {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here
@@ -12,7 +12,7 @@ warning: 1 warning emitted
 
 Future incompatibility report: Future breakage diagnostic:
 warning: this function definition uses SIMD vector type `SimdVec` which is not currently supported with the chosen ABI
-  --> $DIR/simd-abi-checks-empty-list.rs:17:1
+  --> $DIR/simd-abi-checks-empty-list.rs:16:1
    |
 LL | pub extern "C" fn pass_by_vec(_: SimdVec) {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here

diff --git a/tests/ui/simd-abi-checks-s390x.rs b/tests/ui/simd-abi-checks-s390x.rs
@@ -1,3 +1,4 @@
+//@ add-core-stubs
 //@ revisions: z10 z13_no_vector z13_soft_float
 //@ build-fail
 //@[z10] compile-flags: --target s390x-unknown-linux-gnu
@@ -8,20 +9,14 @@
 //@[z13_soft_float] compile-flags: --target s390x-unknown-linux-gnu -C target-cpu=z13 -C target-feature=-vector,+soft-float
 //@[z13_soft_float] needs-llvm-components: systemz
 
-#![feature(no_core, lang_items, repr_simd, s390x_target_feature)]
+#![feature(no_core, repr_simd, s390x_target_feature)]
 #![no_core]
 #![crate_type = "lib"]
 #![allow(non_camel_case_types, improper_ctypes_definitions)]
 #![deny(abi_unsupported_vector_types)]
 
-#[lang = "sized"]
-pub trait Sized {}
-#[lang = "copy"]
-pub trait Copy {}
-#[lang = "freeze"]
-pub trait Freeze {}
-
-impl<T: Copy, const N: usize> Copy for [T; N] {}
+extern crate minicore;
+use minicore::*;
 
 #[repr(simd)]
 pub struct i8x8([i8; 8]);
@@ -34,8 +29,6 @@ pub struct Wrapper<T>(T);
 #[repr(transparent)]
 pub struct TransparentWrapper<T>(T);
 
-impl Copy for i8 {}
-impl Copy for i64 {}
 impl Copy for i8x8 {}
 impl Copy for i8x16 {}
 impl Copy for i8x32 {}