Merge commit '11a0cceab9' into subtree-update_cg_gcc_2023-10-09

compiler/rustc_codegen_gcc/example/alloc_example.rs

@@ -1,5 +1,6 @@
 #![feature(start, core_intrinsics, alloc_error_handler, lang_items)]
 #![no_std]
+#![allow(internal_features)]
 
 extern crate alloc;
 extern crate alloc_system;

compiler/rustc_codegen_gcc/example/alloc_system.rs

@@ -12,7 +12,7 @@
               target_arch = "mips",
               target_arch = "mips32r6",
               target_arch = "powerpc",
-              target_arch = "csky"
+              target_arch = "csky",
               target_arch = "powerpc64"))]
 const MIN_ALIGN: usize = 8;
 #[cfg(any(target_arch = "x86_64",

compiler/rustc_codegen_gcc/example/arbitrary_self_types_pointers_and_wrappers.rs

@@ -2,6 +2,7 @@
 
 #![feature(arbitrary_self_types, unsize, coerce_unsized, dispatch_from_dyn)]
 #![feature(rustc_attrs)]
+#![allow(internal_features)]
 
 use std::{
     ops::{Deref, CoerceUnsized, DispatchFromDyn},

compiler/rustc_codegen_gcc/example/mini_core.rs

@@ -4,7 +4,7 @@
     thread_local
 )]
 #![no_core]
-#![allow(dead_code)]
+#![allow(dead_code, internal_features)]
 
 #[no_mangle]
 unsafe extern "C" fn _Unwind_Resume() {
@@ -429,6 +429,15 @@ fn panic_cannot_unwind() -> ! {
     }
 }
 
+#[lang = "panic_in_cleanup"]
+#[rustc_nounwind]
+fn panic_in_cleanup() -> ! {
+    unsafe {
+        libc::printf("panic in a destructor during cleanup\n\0" as *const str as *const i8);
+        intrinsics::abort();
+    }
+}
+
 #[lang = "panic_bounds_check"]
 #[track_caller]
 fn panic_bounds_check(index: usize, len: usize) -> ! {

compiler/rustc_codegen_gcc/example/mini_core_hello_world.rs

@@ -5,7 +5,7 @@
     extern_types, thread_local
 )]
 #![no_core]
-#![allow(dead_code, non_camel_case_types)]
+#![allow(dead_code, internal_features, non_camel_case_types)]
 
 extern crate mini_core;
 

compiler/rustc_codegen_gcc/example/mod_bench.rs

@@ -1,5 +1,6 @@
 #![feature(start, core_intrinsics, lang_items)]
 #![no_std]
+#![allow(internal_features)]
 
 #[link(name = "c")]
 extern {}