[pdb] Have builders share a single BumpPtrAllocator.

This makes it easier to have the writable and readable PDB
interfaces share code since the read/write and write-only
interfaces now share a single allocator, you don't have to worry
about a builder building a read only interface and then having
the read-only interface's data become corrupt when the builder
goes out of scope.  Now the allocator is specified explicitly
to all constructors, so all interfaces can share a single allocator
that is scoped appropriately.

llvm-svn: 276459

1 files changed, 3 insertions, 2 deletions

diff --git a/llvm/lib/DebugInfo/PDB/Raw/PDBFile.cpp b/llvm/lib/DebugInfo/PDB/Raw/PDBFile.cpp
index b44a474..e2edf38 100644
--- a/llvm/lib/DebugInfo/PDB/Raw/PDBFile.cpp
+++ b/llvm/lib/DebugInfo/PDB/Raw/PDBFile.cpp
@@ -36,8 +36,9 @@ namespace {
 typedef FixedStreamArray<support::ulittle32_t> ulittle_array;
 }
 
-PDBFile::PDBFile(std::unique_ptr<StreamInterface> PdbFileBuffer)
-    : Buffer(std::move(PdbFileBuffer)), SB(nullptr) {}
+PDBFile::PDBFile(std::unique_ptr<StreamInterface> PdbFileBuffer,
+                 BumpPtrAllocator &Allocator)
+    : Allocator(Allocator), Buffer(std::move(PdbFileBuffer)), SB(nullptr) {}
 
 PDBFile::~PDBFile() {}