From fcd195bb4ca47d4b3c7dfd3e6c14dc5771e139cc Mon Sep 17 00:00:00 2001
From: Patrick Walton <pcwalton@mimiga.net>
Date: Wed, 9 Mar 2011 11:33:44 -0800
Subject: rustc: Don't try to load dynamically-sized types when translating tag
 variants. Add a test case for this.

---
 src/comp/middle/trans.rs                | 3 ++-
 src/test/run-pass/simple-generic-tag.rs | 7 +++++++
 2 files changed, 9 insertions(+), 1 deletion(-)
 create mode 100644 src/test/run-pass/simple-generic-tag.rs

diff --git a/src/comp/middle/trans.rs b/src/comp/middle/trans.rs
index 0b513744..2ad33968 100644
--- a/src/comp/middle/trans.rs
+++ b/src/comp/middle/trans.rs
@@ -4920,7 +4920,8 @@ fn trans_tag_variant(@crate_ctxt cx, ast.def_id tag_id,
 
         auto arg_ty = arg_tys.(i).ty;
         auto llargval;
-        if (ty.type_is_structural(arg_ty)) {
+        if (ty.type_is_structural(arg_ty) ||
+                ty.type_has_dynamic_size(arg_ty)) {
             llargval = llargptr;
         } else {
             llargval = bcx.build.Load(llargptr);
diff --git a/src/test/run-pass/simple-generic-tag.rs b/src/test/run-pass/simple-generic-tag.rs
new file mode 100644
index 00000000..ba6a3242
--- /dev/null
+++ b/src/test/run-pass/simple-generic-tag.rs
@@ -0,0 +1,7 @@
+tag clam[T] {
+    a(T);
+}
+
+fn main() {
+}
+
-- 
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