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-rw-r--r--src/test/run-pass/impl-trait/issue-49376.rs29
-rw-r--r--src/test/run-pass/issue-50811.rs65
-rw-r--r--src/test/run-pass/rfc-1937-termination-trait/termination-trait-for-impl-termination.rs13
3 files changed, 107 insertions, 0 deletions
diff --git a/src/test/run-pass/impl-trait/issue-49376.rs b/src/test/run-pass/impl-trait/issue-49376.rs
new file mode 100644
index 00000000000..b687b485fce
--- /dev/null
+++ b/src/test/run-pass/impl-trait/issue-49376.rs
@@ -0,0 +1,29 @@
+// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// Tests for nested self-reference which caused a stack overflow.
+
+use std::fmt::Debug;
+use std::ops::*;
+
+fn gen() -> impl PartialOrd + PartialEq + Debug { }
+
+struct Bar {}
+trait Foo<T = Self> {}
+impl Foo for Bar {}
+
+fn foo() -> impl Foo {
+    Bar {}
+}
+
+fn test_impl_ops() -> impl Add + Sub + Mul + Div { 1 }
+fn test_impl_assign_ops() -> impl AddAssign + SubAssign + MulAssign + DivAssign { 1 }
+
+fn main() {}
diff --git a/src/test/run-pass/issue-50811.rs b/src/test/run-pass/issue-50811.rs
new file mode 100644
index 00000000000..05b168d98f1
--- /dev/null
+++ b/src/test/run-pass/issue-50811.rs
@@ -0,0 +1,65 @@
+// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![feature(test)]
+
+extern crate test;
+
+use std::f64::{NAN, NEG_INFINITY, INFINITY, MAX};
+use std::mem::size_of;
+use test::black_box;
+
+// Ensure the const-eval result and runtime result of float comparison are equivalent.
+
+macro_rules! compare {
+    ($op:tt) => {
+        compare!(
+            [NEG_INFINITY, -MAX, -1.0, -0.0, 0.0, 1.0, MAX, INFINITY, NAN],
+            $op
+        );
+    };
+    ([$($lhs:expr),+], $op:tt) => {
+        $(compare!(
+            $lhs,
+            $op,
+            [NEG_INFINITY, -MAX, -1.0, -0.0, 0.0, 1.0, MAX, INFINITY, NAN]
+        );)+
+    };
+    ($lhs:expr, $op:tt, [$($rhs:expr),+]) => {
+        $({
+            // Wrap the check in its own function to reduce time needed to borrowck.
+            fn check() {
+                static CONST_EVAL: bool = $lhs $op $rhs;
+                let runtime_eval = black_box($lhs) $op black_box($rhs);
+                assert_eq!(CONST_EVAL, runtime_eval, stringify!($lhs $op $rhs));
+                assert_eq!(
+                    size_of::<[u8; ($lhs $op $rhs) as usize]>(),
+                    runtime_eval as usize,
+                    stringify!($lhs $op $rhs (forced const eval))
+                );
+            }
+            check();
+        })+
+    };
+}
+
+fn main() {
+    assert_eq!(0.0/0.0 < 0.0/0.0, false);
+    assert_eq!(0.0/0.0 > 0.0/0.0, false);
+    assert_eq!(NAN < NAN, false);
+    assert_eq!(NAN > NAN, false);
+
+    compare!(==);
+    compare!(!=);
+    compare!(<);
+    compare!(<=);
+    compare!(>);
+    compare!(>=);
+}
diff --git a/src/test/run-pass/rfc-1937-termination-trait/termination-trait-for-impl-termination.rs b/src/test/run-pass/rfc-1937-termination-trait/termination-trait-for-impl-termination.rs
new file mode 100644
index 00000000000..5bce3f8045e
--- /dev/null
+++ b/src/test/run-pass/rfc-1937-termination-trait/termination-trait-for-impl-termination.rs
@@ -0,0 +1,13 @@
+// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![feature(termination_trait_lib)]
+
+fn main() -> impl std::process::Termination { }