From e9280c86a1fc79aec5936bb21c9469657555a7ed Mon Sep 17 00:00:00 2001
From: Andrew Kelley <superjoe30@gmail.com>
Date: Wed, 30 Aug 2017 02:56:42 -0400
Subject: compile error for not-aligned-enough pointer to cmpxchg

See #37
---
 test/compile_errors.zig | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'test/compile_errors.zig')

diff --git a/test/compile_errors.zig b/test/compile_errors.zig
index e7fddace91..6c3a6e976d 100644
--- a/test/compile_errors.zig
+++ b/test/compile_errors.zig
@@ -2051,4 +2051,14 @@ pub fn addCases(cases: &tests.CompileErrorContext) {
     ,
         ".tmp_source.zig:2:35: error: expected type 'fn() align 8 -> i32', found 'fn() align 4 -> i32'");
 
+    cases.add("passing a not-aligned-enough pointer to cmpxchg",
+        \\const AtomicOrder = @import("builtin").AtomicOrder;
+        \\export fn entry() -> bool {
+        \\    var x: i32 align 1 = 1234;
+        \\    while (!@cmpxchg(&x, 1234, 5678, AtomicOrder.SeqCst, AtomicOrder.SeqCst)) {}
+        \\    return x == 5678;
+        \\}
+    ,
+        ".tmp_source.zig:4:23: error: expected pointer alignment of at least 4, found 1");
+
 }
-- 
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