5 files changed, 64 insertions, 0 deletions
diff --git a/tests/ui/allocator/auxiliary/custom-as-global.rs b/tests/ui/allocator/auxiliary/custom-as-global.rs
new file mode 100644
index 000000000..a5e96e775
--- /dev/null
+++ b/tests/ui/allocator/auxiliary/custom-as-global.rs
@@ -0,0 +1,16 @@
+// no-prefer-dynamic
+
+#![crate_type = "rlib"]
+
+extern crate custom;
+
+use std::sync::atomic::{AtomicUsize, Ordering};
+
+use custom::A;
+
+#[global_allocator]
+static ALLOCATOR: A = A(AtomicUsize::new(0));
+
+pub fn get() -> usize {
+    ALLOCATOR.0.load(Ordering::SeqCst)
+}
diff --git a/tests/ui/allocator/auxiliary/custom.rs b/tests/ui/allocator/auxiliary/custom.rs
new file mode 100644
index 000000000..b0ec9ab09
--- /dev/null
+++ b/tests/ui/allocator/auxiliary/custom.rs
@@ -0,0 +1,21 @@
+// no-prefer-dynamic
+
+#![feature(allocator_api)]
+#![crate_type = "rlib"]
+
+use std::alloc::{GlobalAlloc, System, Layout};
+use std::sync::atomic::{AtomicUsize, Ordering};
+
+pub struct A(pub AtomicUsize);
+
+unsafe impl GlobalAlloc for A {
+    unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
+        self.0.fetch_add(1, Ordering::SeqCst);
+        System.alloc(layout)
+    }
+
+    unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {
+        self.0.fetch_add(1, Ordering::SeqCst);
+        System.dealloc(ptr, layout)
+    }
+}
diff --git a/tests/ui/allocator/auxiliary/helper.rs b/tests/ui/allocator/auxiliary/helper.rs
new file mode 100644
index 000000000..008fb3501
--- /dev/null
+++ b/tests/ui/allocator/auxiliary/helper.rs
@@ -0,0 +1,11 @@
+// no-prefer-dynamic
+
+#![crate_type = "rlib"]
+#![no_std]
+
+extern crate alloc;
+use alloc::fmt;
+
+pub fn work_with(p: &fmt::Debug) {
+    drop(p);
+}
diff --git a/tests/ui/allocator/auxiliary/system-allocator.rs b/tests/ui/allocator/auxiliary/system-allocator.rs
new file mode 100644
index 000000000..97b86bbc9
--- /dev/null
+++ b/tests/ui/allocator/auxiliary/system-allocator.rs
@@ -0,0 +1,8 @@
+// no-prefer-dynamic
+
+#![crate_type = "rlib"]
+
+use std::alloc::System;
+
+#[global_allocator]
+static A: System = System;
diff --git a/tests/ui/allocator/auxiliary/system-allocator2.rs b/tests/ui/allocator/auxiliary/system-allocator2.rs
new file mode 100644
index 000000000..97b86bbc9
--- /dev/null
+++ b/tests/ui/allocator/auxiliary/system-allocator2.rs
@@ -0,0 +1,8 @@
+// no-prefer-dynamic
+
+#![crate_type = "rlib"]
+
+use std::alloc::System;
+
+#[global_allocator]
+static A: System = System;