Auto merge of rust-lang#92816 - tmiasko:rm-llvm-asm, r=Amanieu

Remove deprecated LLVM-style inline assembly

The `llvm_asm!` was deprecated back in rust-lang#87590 1.56.0, with intention to remove
it once `asm!` was stabilized, which already happened in rust-lang#91728 1.59.0. Now it
is time to remove `llvm_asm!` to avoid continued maintenance cost.

Closes rust-lang#70173.
Closes rust-lang#92794.
Closes rust-lang#87612.
Closes rust-lang#82065.

cc `@rust-lang/wg-inline-asm`

r? `@Amanieu`

Author: bors

core/src/lib.rs

@@ -180,7 +180,6 @@
 #![feature(intrinsics)]
 #![feature(lang_items)]
 #![feature(link_llvm_intrinsics)]
-#![feature(llvm_asm)]
 #![feature(min_specialization)]
 #![feature(mixed_integer_ops)]
 #![feature(must_not_suspend)]

core/src/macros/mod.rs

@@ -1397,32 +1397,6 @@ pub(crate) mod builtin {
         ($cond:expr, $($arg:tt)+) => {{ /* compiler built-in */ }};
     }
 
-    /// LLVM-style inline assembly.
-    ///
-    /// Read the [unstable book] for the usage.
-    ///
-    /// [unstable book]: ../unstable-book/library-features/llvm-asm.html
-    #[unstable(
-        feature = "llvm_asm",
-        issue = "70173",
-        reason = "prefer using the new asm! syntax instead"
-    )]
-    #[rustc_deprecated(
-        since = "1.56",
-        reason = "will be removed from the compiler, use asm! instead"
-    )]
-    #[rustc_builtin_macro]
-    #[macro_export]
-    macro_rules! llvm_asm {
-        ("assembly template"
-                        : $("output"(operand),)*
-                        : $("input"(operand),)*
-                        : $("clobbers",)*
-                        : $("options",)*) => {
-            /* compiler built-in */
-        };
-    }
-
     /// Prints passed tokens into the standard output.
     #[unstable(
         feature = "log_syntax",

core/src/prelude/v1.rs

@@ -56,8 +56,8 @@ pub use crate::hash::macros::Hash;
 #[doc(no_inline)]
 pub use crate::{
     assert, cfg, column, compile_error, concat, concat_idents, env, file, format_args,
-    format_args_nl, include, include_bytes, include_str, line, llvm_asm, log_syntax, module_path,
-    option_env, stringify, trace_macros,
+    format_args_nl, include, include_bytes, include_str, line, log_syntax, module_path, option_env,
+    stringify, trace_macros,
 };
 
 #[unstable(

std/src/lib.rs

@@ -294,7 +294,6 @@
 #![feature(intra_doc_pointers)]
 #![feature(lang_items)]
 #![feature(linkage)]
-#![feature(llvm_asm)]
 #![feature(log_syntax)]
 #![feature(map_try_insert)]
 #![feature(maybe_uninit_slice)]
@@ -571,8 +570,8 @@ pub use core::{
 #[allow(deprecated)]
 pub use core::{
     assert, assert_matches, cfg, column, compile_error, concat, concat_idents, const_format_args,
-    env, file, format_args, format_args_nl, include, include_bytes, include_str, line, llvm_asm,
-    log_syntax, module_path, option_env, stringify, trace_macros,
+    env, file, format_args, format_args_nl, include, include_bytes, include_str, line, log_syntax,
+    module_path, option_env, stringify, trace_macros,
 };
 
 #[unstable(

std/src/prelude/v1.rs

@@ -40,9 +40,8 @@ pub use crate::result::Result::{self, Err, Ok};
 #[doc(no_inline)]
 pub use core::prelude::v1::{
     assert, cfg, column, compile_error, concat, concat_idents, env, file, format_args,
-    format_args_nl, include, include_bytes, include_str, line, llvm_asm, log_syntax, module_path,
-    option_env, stringify, trace_macros, Clone, Copy, Debug, Default, Eq, Hash, Ord, PartialEq,
-    PartialOrd,
+    format_args_nl, include, include_bytes, include_str, line, log_syntax, module_path, option_env,
+    stringify, trace_macros, Clone, Copy, Debug, Default, Eq, Hash, Ord, PartialEq, PartialOrd,
 };
 
 #[unstable(