From daf8903e8ed1f4704077e02479f841b84ebc82d3 Mon Sep 17 00:00:00 2001
From: Camille GILLOT <gillot.camille@gmail.com>
Date: Sat, 2 Oct 2021 21:14:52 +0200
Subject: Do not re-hash foreign spans.

---
 src/test/incremental/mir-opt.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 src/test/incremental/mir-opt.rs

(limited to 'src/test')

diff --git a/src/test/incremental/mir-opt.rs b/src/test/incremental/mir-opt.rs
new file mode 100644
index 00000000000..5bd863439df
--- /dev/null
+++ b/src/test/incremental/mir-opt.rs
@@ -0,0 +1,11 @@
+// MIR optimizations can create expansions after the TyCtxt has been created.
+// This test verifies that those expansions can be decoded correctly.
+
+// revisions:rpass1 rpass2
+// compile-flags: -Z query-dep-graph -Z mir-opt-level=3
+
+fn main() {
+    if std::env::var("a").is_ok() {
+        println!("b");
+    }
+}
-- 
cgit 1.4.1-3-g733a5