[DebugInfo] Use shrink_to_fit to simplify code. NFCI.
llvm-svn: 309683
diff --git a/llvm/lib/DebugInfo/DWARF/DWARFDebugAranges.cpp b/llvm/lib/DebugInfo/DWARF/DWARFDebugAranges.cpp
index 65c486a..a3ecb15 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFDebugAranges.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFDebugAranges.cpp
@@ -107,8 +107,8 @@
assert(ValidCUs.empty());
// Endpoints are not needed now.
- std::vector<RangeEndpoint> EmptyEndpoints;
- EmptyEndpoints.swap(Endpoints);
+ Endpoints.clear();
+ Endpoints.shrink_to_fit();
}
uint32_t DWARFDebugAranges::findAddress(uint64_t Address) const {
diff --git a/llvm/lib/DebugInfo/DWARF/DWARFUnit.cpp b/llvm/lib/DebugInfo/DWARF/DWARFUnit.cpp
index f55ece2..0a12fb2 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFUnit.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFUnit.cpp
@@ -307,18 +307,8 @@
void DWARFUnit::clearDIEs(bool KeepCUDie) {
if (DieArray.size() > (unsigned)KeepCUDie) {
- // std::vectors never get any smaller when resized to a smaller size,
- // or when clear() or erase() are called, the size will report that it
- // is smaller, but the memory allocated remains intact (call capacity()
- // to see this). So we need to create a temporary vector and swap the
- // contents which will cause just the internal pointers to be swapped
- // so that when temporary vector goes out of scope, it will destroy the
- // contents.
- std::vector<DWARFDebugInfoEntry> TmpArray;
- DieArray.swap(TmpArray);
- // Save at least the compile unit DIE
- if (KeepCUDie)
- DieArray.push_back(TmpArray.front());
+ DieArray.resize((unsigned)KeepCUDie);
+ DieArray.shrink_to_fit();
}
}