From 222e2a7620e6520ffaf4fc4e69d79c18da31542e Mon Sep 17 00:00:00 2001
From: "Zancanaro; Carlo" <czan8762@plang3.cs.usyd.edu.au>
Date: Mon, 24 Sep 2012 09:58:17 +1000
Subject: Add the clang library to the repo (with some of my changes, too).

---
 clang/test/SemaCXX/warn-new-overaligned.cpp | 73 +++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 clang/test/SemaCXX/warn-new-overaligned.cpp

(limited to 'clang/test/SemaCXX/warn-new-overaligned.cpp')

diff --git a/clang/test/SemaCXX/warn-new-overaligned.cpp b/clang/test/SemaCXX/warn-new-overaligned.cpp
new file mode 100644
index 0000000..42a4e35
--- /dev/null
+++ b/clang/test/SemaCXX/warn-new-overaligned.cpp
@@ -0,0 +1,73 @@
+// RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -Wover-aligned -verify %s
+
+namespace test1 {
+struct Test {
+  template <typename T>
+  struct SeparateCacheLines {
+    T data;
+  } __attribute__((aligned(256)));
+
+  SeparateCacheLines<int> high_contention_data[10];
+};
+
+void helper() {
+  Test t;
+  new Test;  // expected-warning {{type 'test1::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
+  new Test[10];  // expected-warning {{type 'test1::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
+}
+}
+
+namespace test2 {
+class Test {
+  typedef int __attribute__((aligned(256))) aligned_int;
+  aligned_int high_contention_data[10];
+};
+
+void helper() {
+  Test t;
+  new Test;  // expected-warning {{type 'test2::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
+  new Test[10];  // expected-warning {{type 'test2::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
+}
+}
+
+namespace test3 {
+struct Test {
+  template <typename T>
+  struct SeparateCacheLines {
+    T data;
+  } __attribute__((aligned(256)));
+
+  void* operator new(unsigned long) {
+    return 0;
+  }
+
+  SeparateCacheLines<int> high_contention_data[10];
+};
+
+void helper() {
+  Test t;
+  new Test;
+  new Test[10];  // expected-warning {{type 'test3::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
+}
+}
+
+namespace test4 {
+struct Test {
+  template <typename T>
+  struct SeparateCacheLines {
+    T data;
+  } __attribute__((aligned(256)));
+
+  void* operator new[](unsigned long) {
+    return 0;
+  }
+
+  SeparateCacheLines<int> high_contention_data[10];
+};
+
+void helper() {
+  Test t;
+  new Test;  // expected-warning {{type 'test4::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
+  new Test[10];
+}
+}
-- 
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