From 7b18ff7dd264df9675ff607d70315a8dbb370522 Mon Sep 17 00:00:00 2001
From: Yaron Keren <yaron.keren@gmail.com>
Date: Tue, 18 Aug 2015 07:59:09 +0000
Subject: [PATCH] Add unit test for isLayoutIdentical(empty, empty). It was
 previously asserting in Visual C++ debug mode on a null iterator passed to
 std::equal.

Test by Hans Wennborg!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245270 91177308-0d34-0410-b5e6-96231b3b80d8
---
 unittests/IR/TypesTest.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/unittests/IR/TypesTest.cpp b/unittests/IR/TypesTest.cpp
index 2cee640a13d..b4dbf8ec2c7 100644
--- a/unittests/IR/TypesTest.cpp
+++ b/unittests/IR/TypesTest.cpp
@@ -27,4 +27,12 @@ TEST(TypesTest, StructType) {
   EXPECT_FALSE(Struct->hasName());
 }
 
+TEST(TypesTest, LayoutIdenticalEmptyStructs) {
+  LLVMContext C;
+
+  StructType *Foo = StructType::create(C, "Foo");
+  StructType *Bar = StructType::create(C, "Bar");
+  EXPECT_TRUE(Foo->isLayoutIdentical(Bar));
+}
+
 }  // end anonymous namespace
-- 
2.34.1