[sanitizer] Remove reserving constructor from InternalMmapVector

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@331617 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 7 insertions, 7 deletions

diff --git a/lib/lsan/lsan_common.cc b/lib/lsan/lsan_common.cc
index 19e22fb61..25967c2d1 100644
--- a/lib/lsan/lsan_common.cc
+++ b/lib/lsan/lsan_common.cc
@@ -104,7 +104,7 @@ InternalMmapVector<RootRegion> const *GetRootRegions() { return root_regions; }
 void InitializeRootRegions() {
   CHECK(!root_regions);
   ALIGNED(64) static char placeholder[sizeof(InternalMmapVector<RootRegion>)];
-  root_regions = new(placeholder) InternalMmapVector<RootRegion>(1);
+  root_regions = new (placeholder) InternalMmapVector<RootRegion>();  // NOLINT
 }
 
 const char *MaybeCallLsanDefaultOptions() {
@@ -445,7 +445,7 @@ void ProcessPC(Frontier *frontier) {
 // Sets the appropriate tag on each chunk.
 static void ClassifyAllChunks(SuspendedThreadsList const &suspended_threads) {
   // Holds the flood fill frontier.
-  Frontier frontier(1);
+  Frontier frontier;
 
   ForEachChunk(CollectIgnoredCb, &frontier);
   ProcessGlobalRegions(&frontier);
@@ -507,7 +507,7 @@ static void CollectLeaksCb(uptr chunk, void *arg) {
 }
 
 static void PrintMatchedSuppressions() {
-  InternalMmapVector<Suppression *> matched(1);
+  InternalMmapVector<Suppression *> matched;
   GetSuppressionContext()->GetMatched(&matched);
   if (!matched.size())
     return;
diff --git a/lib/lsan/lsan_common.h b/lib/lsan/lsan_common.h
index f3863309d..2bffed4a5 100644
--- a/lib/lsan/lsan_common.h
+++ b/lib/lsan/lsan_common.h
@@ -95,7 +95,7 @@ struct LeakedObject {
 // Aggregates leaks by stack trace prefix.
 class LeakReport {
  public:
-  LeakReport() : next_id_(0), leaks_(1), leaked_objects_(1) {}
+  LeakReport() {}
   void AddLeakedChunk(uptr chunk, u32 stack_trace_id, uptr leaked_size,
                       ChunkTag tag);
   void ReportTopLeaks(uptr max_leaks);
@@ -103,12 +103,11 @@ class LeakReport {
   void ApplySuppressions();
   uptr UnsuppressedLeakCount();
 
-
  private:
   void PrintReportForLeak(uptr index);
   void PrintLeakedObjectsForLeak(uptr index);
 
-  u32 next_id_;
+  u32 next_id_ = 0;
   InternalMmapVector<Leak> leaks_;
   InternalMmapVector<LeakedObject> leaked_objects_;
 };
diff --git a/lib/lsan/lsan_common_mac.cc b/lib/lsan/lsan_common_mac.cc
index b8f8b25f6..2508c1dbd 100644
--- a/lib/lsan/lsan_common_mac.cc
+++ b/lib/lsan/lsan_common_mac.cc
@@ -119,7 +119,8 @@ void ProcessGlobalRegions(Frontier *frontier) {
   for (auto name : kSkippedSecNames) CHECK(ARRAY_SIZE(name) < kMaxSegName);
 
   MemoryMappingLayout memory_mapping(false);
-  InternalMmapVector<LoadedModule> modules(/*initial_capacity*/ 128);
+  InternalMmapVector<LoadedModule> modules;
+  modules.reserve(128);
   memory_mapping.DumpListOfModules(&modules);
   for (uptr i = 0; i < modules.size(); ++i) {
     // Even when global scanning is disabled, we still need to scan