tests/ui/asm: Remove uses of rustc_attrs, lang_items, and decl_macro features by using minicore

Author: taiki-e

tests/auxiliary/minicore.rs

@@ -14,7 +14,7 @@
 //! <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)]
+#![feature(no_core, lang_items, rustc_attrs, decl_macro, naked_functions)]
 #![allow(unused, improper_ctypes_definitions, internal_features)]
 #![feature(asm_experimental_arch)]
 #![no_std]
@@ -80,3 +80,11 @@ pub struct UnsafeCell<T: ?Sized> {
 pub macro asm("assembly template", $(operands,)* $(options($(option),*))?) {
     /* compiler built-in */
 }
+#[rustc_builtin_macro]
+pub macro naked_asm("assembly template", $(operands,)* $(options($(option),*))?) {
+    /* compiler built-in */
+}
+#[rustc_builtin_macro]
+pub macro global_asm("assembly template", $(operands,)* $(options($(option),*))?) {
+    /* compiler built-in */
+}

tests/ui/asm/aarch64/aarch64-sve.rs

@@ -3,22 +3,10 @@
 //@ needs-asm-support
 
 #![crate_type = "rlib"]
-#![feature(no_core, rustc_attrs, lang_items)]
-#![no_core]
 
 // AArch64 test corresponding to arm64ec-sve.rs.
 
-#[lang = "sized"]
-trait Sized {}
-#[lang = "copy"]
-trait Copy {}
-
-impl Copy for f64 {}
-
-#[rustc_builtin_macro]
-macro_rules! asm {
-    () => {};
-}
+use std::arch::asm;
 
 fn f(x: f64) {
     unsafe {

tests/ui/asm/aarch64/arm64ec-sve.rs

@@ -1,25 +1,17 @@
+//@ add-core-stubs
 //@ compile-flags: --target arm64ec-pc-windows-msvc
 //@ needs-asm-support
 //@ needs-llvm-components: aarch64
 
 #![crate_type = "rlib"]
-#![feature(no_core, rustc_attrs, lang_items)]
+#![feature(no_core)]
 #![no_core]
 
 // SVE cannot be used for Arm64EC
 // https://github.com/rust-lang/rust/pull/131332#issuecomment-2401189142
 
-#[lang = "sized"]
-trait Sized {}
-#[lang = "copy"]
-trait Copy {}
-
-impl Copy for f64 {}
-
-#[rustc_builtin_macro]
-macro_rules! asm {
-    () => {};
-}
+extern crate minicore;
+use minicore::*;
 
 fn f(x: f64) {
     unsafe {

tests/ui/asm/aarch64/arm64ec-sve.stderr

@@ -1,11 +1,11 @@
 error: cannot use register `p0`: x13, x14, x23, x24, x28, v16-v31, p*, ffr cannot be used for Arm64EC
-  --> $DIR/arm64ec-sve.rs:26:18
+  --> $DIR/arm64ec-sve.rs:18:18
    |
 LL |         asm!("", out("p0") _);
    |                  ^^^^^^^^^^^
 
 error: cannot use register `ffr`: x13, x14, x23, x24, x28, v16-v31, p*, ffr cannot be used for Arm64EC
-  --> $DIR/arm64ec-sve.rs:28:18
+  --> $DIR/arm64ec-sve.rs:20:18
    |
 LL |         asm!("", out("ffr") _);
    |                  ^^^^^^^^^^^^

tests/ui/asm/arm-low-dreg.rs

@@ -1,28 +1,17 @@
+//@ add-core-stubs
 //@ build-pass
 //@ compile-flags: --target=armv7-unknown-linux-gnueabihf
 //@ needs-llvm-components: arm
-#![feature(no_core, rustc_attrs, decl_macro, lang_items)]
+#![feature(no_core)]
 #![crate_type = "rlib"]
-#![no_std]
 #![no_core]
 
 // We accidentally classified "d0"..="d15" as dregs, even though they are in dreg_low16,
 // and thus didn't compile them on platforms with only 16 dregs.
 // Highlighted in https://github.com/rust-lang/rust/issues/126797
 
-#[lang = "sized"]
-trait Sized {}
-
-#[lang = "copy"]
-trait Copy {}
-
-impl Copy for f64 {}
-
-#[rustc_builtin_macro]
-pub macro asm("assembly template", $(operands,)* $(options($(option),*))?) {
-    /* compiler built-in */
-}
-
+extern crate minicore;
+use minicore::*;
 
 fn f(x: f64) -> f64 {
     let out: f64;

tests/ui/asm/bad-template.aarch64.stderr

@@ -1,35 +1,35 @@
 error: invalid reference to argument at index 0
-  --> $DIR/bad-template.rs:30:15
+  --> $DIR/bad-template.rs:19:15
    |
 LL |         asm!("{}");
    |               ^^ from here
    |
    = note: no arguments were given
 
 error: invalid reference to argument at index 1
-  --> $DIR/bad-template.rs:32:15
+  --> $DIR/bad-template.rs:21:15
    |
 LL |         asm!("{1}", in(reg) foo);
    |               ^^^ from here
    |
    = note: there is 1 argument
 
 error: argument never used
-  --> $DIR/bad-template.rs:32:21
+  --> $DIR/bad-template.rs:21:21
    |
 LL |         asm!("{1}", in(reg) foo);
    |                     ^^^^^^^^^^^ argument never used
    |
    = help: if this argument is intentionally unused, consider using it in an asm comment: `"/* {0} */"`
 
 error: there is no argument named `a`
-  --> $DIR/bad-template.rs:35:16
+  --> $DIR/bad-template.rs:24:16
    |
 LL |         asm!("{a}");
    |                ^
 
 error: invalid reference to argument at index 0
-  --> $DIR/bad-template.rs:37:15
+  --> $DIR/bad-template.rs:26:15
    |
 LL |         asm!("{}", a = in(reg) foo);
    |               ^^   --------------- named argument
@@ -38,37 +38,37 @@ LL |         asm!("{}", a = in(reg) foo);
    |
    = note: no positional arguments were given
 note: named arguments cannot be referenced by position
-  --> $DIR/bad-template.rs:37:20
+  --> $DIR/bad-template.rs:26:20
    |
 LL |         asm!("{}", a = in(reg) foo);
    |                    ^^^^^^^^^^^^^^^
 
 error: named argument never used
-  --> $DIR/bad-template.rs:37:20
+  --> $DIR/bad-template.rs:26:20
    |
 LL |         asm!("{}", a = in(reg) foo);
    |                    ^^^^^^^^^^^^^^^ named argument never used
    |
    = help: if this argument is intentionally unused, consider using it in an asm comment: `"/* {a} */"`
 
 error: invalid reference to argument at index 1
-  --> $DIR/bad-template.rs:40:15
+  --> $DIR/bad-template.rs:29:15
    |
 LL |         asm!("{1}", a = in(reg) foo);
    |               ^^^ from here
    |
    = note: no positional arguments were given
 
 error: named argument never used
-  --> $DIR/bad-template.rs:40:21
+  --> $DIR/bad-template.rs:29:21
    |
 LL |         asm!("{1}", a = in(reg) foo);
    |                     ^^^^^^^^^^^^^^^ named argument never used
    |
    = help: if this argument is intentionally unused, consider using it in an asm comment: `"/* {a} */"`
 
 error: invalid reference to argument at index 0
-  --> $DIR/bad-template.rs:47:15
+  --> $DIR/bad-template.rs:36:15
    |
 LL |         asm!("{}", in("x0") foo);
    |               ^^   ------------ explicit register argument
@@ -77,24 +77,24 @@ LL |         asm!("{}", in("x0") foo);
    |
    = note: no positional arguments were given
 note: explicit register arguments cannot be used in the asm template
-  --> $DIR/bad-template.rs:47:20
+  --> $DIR/bad-template.rs:36:20
    |
 LL |         asm!("{}", in("x0") foo);
    |                    ^^^^^^^^^^^^
 help: use the register name directly in the assembly code
-  --> $DIR/bad-template.rs:47:20
+  --> $DIR/bad-template.rs:36:20
    |
 LL |         asm!("{}", in("x0") foo);
    |                    ^^^^^^^^^^^^
 
 error: asm template modifier must be a single character
-  --> $DIR/bad-template.rs:49:17
+  --> $DIR/bad-template.rs:38:17
    |
 LL |         asm!("{:foo}", in(reg) foo);
    |                 ^^^
 
 error: multiple unused asm arguments
-  --> $DIR/bad-template.rs:52:18
+  --> $DIR/bad-template.rs:41:18
    |
 LL |         asm!("", in(reg) 0, in(reg) 1);
    |                  ^^^^^^^^^  ^^^^^^^^^ argument never used
@@ -104,37 +104,37 @@ LL |         asm!("", in(reg) 0, in(reg) 1);
    = help: if these arguments are intentionally unused, consider using them in an asm comment: `"/* {0} {1} */"`
 
 error: invalid reference to argument at index 0
-  --> $DIR/bad-template.rs:58:14
+  --> $DIR/bad-template.rs:47:14
    |
 LL | global_asm!("{}");
    |              ^^ from here
    |
    = note: no arguments were given
 
 error: invalid reference to argument at index 1
-  --> $DIR/bad-template.rs:60:14
+  --> $DIR/bad-template.rs:49:14
    |
 LL | global_asm!("{1}", const FOO);
    |              ^^^ from here
    |
    = note: there is 1 argument
 
 error: argument never used
-  --> $DIR/bad-template.rs:60:20
+  --> $DIR/bad-template.rs:49:20
    |
 LL | global_asm!("{1}", const FOO);
    |                    ^^^^^^^^^ argument never used
    |
    = help: if this argument is intentionally unused, consider using it in an asm comment: `"/* {0} */"`
 
 error: there is no argument named `a`
-  --> $DIR/bad-template.rs:63:15
+  --> $DIR/bad-template.rs:52:15
    |
 LL | global_asm!("{a}");
    |               ^
 
 error: invalid reference to argument at index 0
-  --> $DIR/bad-template.rs:65:14
+  --> $DIR/bad-template.rs:54:14
    |
 LL | global_asm!("{}", a = const FOO);
    |              ^^   ------------- named argument
@@ -143,43 +143,43 @@ LL | global_asm!("{}", a = const FOO);
    |
    = note: no positional arguments were given
 note: named arguments cannot be referenced by position
-  --> $DIR/bad-template.rs:65:19
+  --> $DIR/bad-template.rs:54:19
    |
 LL | global_asm!("{}", a = const FOO);
    |                   ^^^^^^^^^^^^^
 
 error: named argument never used
-  --> $DIR/bad-template.rs:65:19
+  --> $DIR/bad-template.rs:54:19
    |
 LL | global_asm!("{}", a = const FOO);
    |                   ^^^^^^^^^^^^^ named argument never used
    |
    = help: if this argument is intentionally unused, consider using it in an asm comment: `"/* {a} */"`
 
 error: invalid reference to argument at index 1
-  --> $DIR/bad-template.rs:68:14
+  --> $DIR/bad-template.rs:57:14
    |
 LL | global_asm!("{1}", a = const FOO);
    |              ^^^ from here
    |
    = note: no positional arguments were given
 
 error: named argument never used
-  --> $DIR/bad-template.rs:68:20
+  --> $DIR/bad-template.rs:57:20
    |
 LL | global_asm!("{1}", a = const FOO);
    |                    ^^^^^^^^^^^^^ named argument never used
    |
    = help: if this argument is intentionally unused, consider using it in an asm comment: `"/* {a} */"`
 
 error: asm template modifier must be a single character
-  --> $DIR/bad-template.rs:71:16
+  --> $DIR/bad-template.rs:60:16
    |
 LL | global_asm!("{:foo}", const FOO);
    |                ^^^
 
 error: multiple unused asm arguments
-  --> $DIR/bad-template.rs:73:17
+  --> $DIR/bad-template.rs:62:17
    |
 LL | global_asm!("", const FOO, const FOO);
    |                 ^^^^^^^^^  ^^^^^^^^^ argument never used
@@ -189,7 +189,7 @@ LL | global_asm!("", const FOO, const FOO);
    = help: if these arguments are intentionally unused, consider using them in an asm comment: `"/* {0} {1} */"`
 
 warning: formatting may not be suitable for sub-register argument
-  --> $DIR/bad-template.rs:49:15
+  --> $DIR/bad-template.rs:38:15
    |
 LL |         asm!("{:foo}", in(reg) foo);
    |               ^^^^^^           --- for this argument

tests/ui/asm/bad-template.rs

@@ -1,3 +1,4 @@
+//@ add-core-stubs
 //@ revisions: x86_64 aarch64
 
 //@ [x86_64] compile-flags: --target x86_64-unknown-linux-gnu
@@ -6,23 +7,11 @@
 //@ [x86_64] needs-llvm-components: x86
 //@ [aarch64] needs-llvm-components: aarch64
 
-#![feature(no_core, lang_items, rustc_attrs)]
+#![feature(no_core)]
 #![no_core]
 
-#[rustc_builtin_macro]
-macro_rules! asm {
-    () => {};
-}
-#[rustc_builtin_macro]
-macro_rules! global_asm {
-    () => {};
-}
-
-#[lang = "sized"]
-trait Sized {}
-
-#[lang = "copy"]
-trait Copy {}
+extern crate minicore;
+use minicore::*;
 
 fn main() {
     let mut foo = 0;