Merge remote-tracking branch 'origin/master' into llvm14

1 files changed, 29 insertions, 0 deletions

diff --git a/test/cases/compile_errors/reference_to_const_data.zig b/test/cases/compile_errors/reference_to_const_data.zig
new file mode 100644
index 0000000000..6bd9d0eb1e
--- /dev/null
+++ b/test/cases/compile_errors/reference_to_const_data.zig
@@ -0,0 +1,29 @@
+export fn foo() void {
+    var ptr = &[_]u8{0,0,0,0};
+    ptr[1] = 2;
+}
+export fn bar() void {
+    var ptr = &@as(u32, 2);
+    ptr.* = 2;
+}
+export fn baz() void {
+    var ptr = &true;
+    ptr.* = false;
+}
+export fn qux() void {
+    const S = struct{
+        x: usize,
+        y: usize,
+    };
+    var ptr = &S{.x=1,.y=2};
+    ptr.x = 2;
+}
+
+// error
+// backend=stage2
+// target=native
+//
+// :3:14: error: cannot assign to constant
+// :7:13: error: cannot assign to constant
+// :11:13: error: cannot assign to constant
+// :19:13: error: cannot assign to constant