From 61f31fd559ba5925022a103a46e90db66eaa37be Mon Sep 17 00:00:00 2001
From: Niko Matsakis <niko@alum.mit.edu>
Date: Sun, 19 Nov 2017 17:55:10 -0500
Subject: [PATCH] add a simple test that running with hir-tree doesn't go
 bonkers

Akin to the existing expanded test.
---
 src/test/run-make/hir-tree/Makefile |  9 +++++++++
 src/test/run-make/hir-tree/input.rs | 13 +++++++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 src/test/run-make/hir-tree/Makefile
 create mode 100644 src/test/run-make/hir-tree/input.rs

diff --git a/src/test/run-make/hir-tree/Makefile b/src/test/run-make/hir-tree/Makefile
new file mode 100644
index 00000000000..59e4ae8a30d
--- /dev/null
+++ b/src/test/run-make/hir-tree/Makefile
@@ -0,0 +1,9 @@
+-include ../tools.mk
+
+# Test that hir-tree output doens't crash and includes
+# the string constant we would expect to see.
+
+all:
+	$(RUSTC) -o $(TMPDIR)/input.hir -Z unstable-options \
+		--unpretty=hir-tree input.rs
+	grep '"Hello, Rustaceans!\\n"' $(TMPDIR)/input.hir
diff --git a/src/test/run-make/hir-tree/input.rs b/src/test/run-make/hir-tree/input.rs
new file mode 100644
index 00000000000..12adc083bcd
--- /dev/null
+++ b/src/test/run-make/hir-tree/input.rs
@@ -0,0 +1,13 @@
+// Copyright 2014 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.
+
+fn main() {
+    println!("Hello, Rustaceans!");
+}