[compiler-rt] r331736 - [sanitizer] Add InternalMmapVector::swap

[Vitaly Buka via llvm-commits]

Author: vitalybuka
Date: Mon May  7 21:57:08 2018
New Revision: 331736

URL: http://llvm.org/viewvc/llvm-project?rev=331736&view=rev
Log:
[sanitizer] Add InternalMmapVector::swap

Modified:
    compiler-rt/trunk/lib/sanitizer_common/sanitizer_common.h
    compiler-rt/trunk/lib/sanitizer_common/tests/sanitizer_common_test.cc

Modified: compiler-rt/trunk/lib/sanitizer_common/sanitizer_common.h
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_common.h?rev=331736&r1=331735&r2=331736&view=diff
==============================================================================
--- compiler-rt/trunk/lib/sanitizer_common/sanitizer_common.h (original)
+++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_common.h Mon May  7 21:57:08 2018
@@ -510,6 +510,12 @@ class InternalMmapVectorNoCtor {
     return data() + size();
   }
 
+  void swap(InternalMmapVectorNoCtor &other) {
+    Swap(data_, other.data_);
+    Swap(capacity_, other.capacity_);
+    Swap(size_, other.size_);
+  }
+
  private:
   void Resize(uptr new_capacity) {
     CHECK_GT(new_capacity, 0);

Modified: compiler-rt/trunk/lib/sanitizer_common/tests/sanitizer_common_test.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/tests/sanitizer_common_test.cc?rev=331736&r1=331735&r2=331736&view=diff
==============================================================================
--- compiler-rt/trunk/lib/sanitizer_common/tests/sanitizer_common_test.cc (original)
+++ compiler-rt/trunk/lib/sanitizer_common/tests/sanitizer_common_test.cc Mon May  7 21:57:08 2018
@@ -130,6 +130,24 @@ TEST(SanitizerCommon, InternalMmapVector
   EXPECT_TRUE(vector1 != vector2);
 }
 
+TEST(SanitizerCommon, InternalMmapVectorSwap) {
+  InternalMmapVector<uptr> vector1;
+  InternalMmapVector<uptr> vector2;
+  InternalMmapVector<uptr> vector3;
+  InternalMmapVector<uptr> vector4;
+  for (uptr i = 0; i < 100; i++) {
+    vector1.push_back(i);
+    vector2.push_back(i);
+    vector3.push_back(-i);
+    vector4.push_back(-i);
+  }
+  EXPECT_NE(vector2, vector3);
+  EXPECT_NE(vector1, vector4);
+  vector1.swap(vector3);
+  EXPECT_EQ(vector2, vector3);
+  EXPECT_EQ(vector1, vector4);
+}
+
 void TestThreadInfo(bool main) {
   uptr stk_addr = 0;
   uptr stk_size = 0;