From f391c0793b443d30ef8c4d4228550439d4dbfead Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Tue, 5 Mar 2024 11:32:03 +0100
Subject: only set noalias on Box with the global allocator

---
 compiler/rustc_codegen_cranelift/example/mini_core.rs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'compiler/rustc_codegen_cranelift/example')

diff --git a/compiler/rustc_codegen_cranelift/example/mini_core.rs b/compiler/rustc_codegen_cranelift/example/mini_core.rs
index a79909ce0c8..67a0d0dabea 100644
--- a/compiler/rustc_codegen_cranelift/example/mini_core.rs
+++ b/compiler/rustc_codegen_cranelift/example/mini_core.rs
@@ -525,8 +525,11 @@ pub struct Unique<T: ?Sized> {
 impl<T: ?Sized, U: ?Sized> CoerceUnsized<Unique<U>> for Unique<T> where T: Unsize<U> {}
 impl<T: ?Sized, U: ?Sized> DispatchFromDyn<Unique<U>> for Unique<T> where T: Unsize<U> {}
 
+#[lang = "global_alloc_ty"]
+pub struct Global;
+
 #[lang = "owned_box"]
-pub struct Box<T: ?Sized, A = ()>(Unique<T>, A);
+pub struct Box<T: ?Sized, A = Global>(Unique<T>, A);
 
 impl<T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<Box<U>> for Box<T> {}
 
@@ -536,7 +539,7 @@ impl<T> Box<T> {
             let size = intrinsics::size_of::<T>();
             let ptr = libc::malloc(size);
             intrinsics::copy(&val as *const T as *const u8, ptr, size);
-            Box(Unique { pointer: NonNull(ptr as *const T), _marker: PhantomData }, ())
+            Box(Unique { pointer: NonNull(ptr as *const T), _marker: PhantomData }, Global)
         }
     }
 }
-- 
cgit 1.4.1-3-g733a5