From dd0f98bc3ebc08cd0bcff7e682b9aff9038921cd Mon Sep 17 00:00:00 2001
From: Yuki Okushi <huyuumi.dev@gmail.com>
Date: Tue, 22 Oct 2019 17:01:06 +0900
Subject: [PATCH] Add test for issue-51431

---
 src/test/ui/asm/issue-51431.rs     | 10 ++++++++++
 src/test/ui/asm/issue-51431.stderr |  8 ++++++++
 2 files changed, 18 insertions(+)
 create mode 100644 src/test/ui/asm/issue-51431.rs
 create mode 100644 src/test/ui/asm/issue-51431.stderr

diff --git a/src/test/ui/asm/issue-51431.rs b/src/test/ui/asm/issue-51431.rs
new file mode 100644
index 00000000000..d29c31fafc2
--- /dev/null
+++ b/src/test/ui/asm/issue-51431.rs
@@ -0,0 +1,10 @@
+// ignore-emscripten no asm! support
+
+#![feature(asm)]
+
+fn main() {
+    unsafe {
+        asm! {"mov $0,$1"::"0"("bx"),"1"(0x00)}
+        //~^ ERROR: invalid value for constraint in inline assembly
+    }
+}
diff --git a/src/test/ui/asm/issue-51431.stderr b/src/test/ui/asm/issue-51431.stderr
new file mode 100644
index 00000000000..132eea126d6
--- /dev/null
+++ b/src/test/ui/asm/issue-51431.stderr
@@ -0,0 +1,8 @@
+error[E0669]: invalid value for constraint in inline assembly
+  --> $DIR/issue-51431.rs:7:32
+   |
+LL |         asm! {"mov $0,$1"::"0"("bx"),"1"(0x00)}
+   |                                ^^^^
+
+error: aborting due to previous error
+