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Catch more cases of a pointer being marked garbage twice. This helps when

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debugging some leaks (PR5770 in particular).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91713 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2009-12-18 20:35:38 +00:00
parent b742defa0a
commit 1cefd7cd07
2 changed files with 31 additions and 1 deletions
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3
lib/VMCore/LeaksContext.h
View File

@ -46,8 +46,9 @@ struct LeakDetectorImpl {
// immediately, it is added to the CachedValue Value. If it is
// immediately removed, no set search need be performed.
void addGarbage(const T* o) {
assert(Ts.count(o) == 0 && "Object already in set!");
if (Cache) {
assert(Ts.count(Cache) == 0 && "Object already in set!");
assert(Cache != o && "Object already in set!");
Ts.insert(Cache);
}
Cache = o;

29
unittests/Support/LeakDetectorTest.cpp Normal file
View File

@ -0,0 +1,29 @@
//===- llvm/unittest/LeakDetector/LeakDetector.cpp - LeakDetector tests ---===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "gtest/gtest.h"
#include "llvm/Support/LeakDetector.h"
using namespace llvm;
namespace {
#ifdef GTEST_HAS_DEATH_TEST
TEST(LeakDetector, Death1) {
LeakDetector::addGarbageObject((void*) 1);
LeakDetector::addGarbageObject((void*) 2);
EXPECT_DEATH(LeakDetector::addGarbageObject((void*) 1),
".*Ts.count\\(o\\) == 0 && \"Object already in set!\"");
EXPECT_DEATH(LeakDetector::addGarbageObject((void*) 2),
"Cache != o && \"Object already in set!\"");
}
#endif
}