From 9fa9a4985356141bc7b7b770ba0f235e9d3e9610 Mon Sep 17 00:00:00 2001
From: Evgeniy Stepanov <eugeni.stepanov@gmail.com>
Date: Thu, 13 Mar 2014 13:18:15 +0000
Subject: [PATCH] [msan] Test for aggregates passing through ellipsis.

llvm-svn: 203795
---
 compiler-rt/lib/msan/tests/msan_test.cc | 35 +++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/compiler-rt/lib/msan/tests/msan_test.cc b/compiler-rt/lib/msan/tests/msan_test.cc
index 09d24ecf5fee..b38f0538d422 100644
--- a/compiler-rt/lib/msan/tests/msan_test.cc
+++ b/compiler-rt/lib/msan/tests/msan_test.cc
@@ -2428,6 +2428,41 @@ struct StructByVal {
   int a, b, c, d, e, f;
 };
 
+static void vaargsfn_structbyval(int guard, ...) {
+  va_list vl;
+  va_start(vl, guard);
+  {
+    StructByVal s = va_arg(vl, StructByVal);
+    EXPECT_NOT_POISONED(s.a);
+    EXPECT_POISONED(s.b);
+    EXPECT_NOT_POISONED(s.c);
+    EXPECT_POISONED(s.d);
+    EXPECT_NOT_POISONED(s.e);
+    EXPECT_POISONED(s.f);
+  }
+  {
+    StructByVal s = va_arg(vl, StructByVal);
+    EXPECT_NOT_POISONED(s.a);
+    EXPECT_POISONED(s.b);
+    EXPECT_NOT_POISONED(s.c);
+    EXPECT_POISONED(s.d);
+    EXPECT_NOT_POISONED(s.e);
+    EXPECT_POISONED(s.f);
+  }
+  va_end(vl);
+}
+
+TEST(MemorySanitizer, VAArgStructByVal) {
+  StructByVal s;
+  s.a = 1;
+  s.b = *GetPoisoned<int>();
+  s.c = 2;
+  s.d = *GetPoisoned<int>();
+  s.e = 3;
+  s.f = *GetPoisoned<int>();
+  vaargsfn_structbyval(0, s, s);
+}
+
 NOINLINE void StructByValTestFunc(struct StructByVal s) {
   EXPECT_NOT_POISONED(s.a);
   EXPECT_POISONED(s.b);