Test that TLS access works outside of the dylib it's defined in

Author: Zoxc

Diff for: tests/ui/auxiliary/tls-export.rs

@@ -0,0 +1,13 @@
+#![crate_type = "dylib"]
+#![feature(thread_local)]
+#![feature(cfg_target_thread_local)]
+
+#[cfg(target_thread_local)]
+#[thread_local]
+pub static FOO: bool = true;
+
+#[cfg(target_thread_local)]
+#[inline(never)]
+pub fn foo_addr() -> usize {
+    &FOO as *const bool as usize
+}

Diff for: tests/ui/tls-dylib-access.rs

@@ -0,0 +1,13 @@
+// aux-build: tls-export.rs
+// run-pass
+
+#![feature(cfg_target_thread_local)]
+
+#[cfg(target_thread_local)]
+extern crate tls_export;
+
+fn main() {
+    // Check that we get the real address of the TLS in the dylib
+    #[cfg(target_thread_local)]
+    assert_eq!(&tls_export::FOO as *const bool as usize, tls_export::foo_addr());
+}