Add some basic Pool-allocation infrastructure. This adds a Recycler class,

for handling bookkeeping for deleted objects, as well as the alist class
template, for keeping lists of objects allocated from Recyclers, and some
related utilities.

llvm-svn: 53210

1 files changed, 7 insertions, 0 deletions

diff --git a/llvm/lib/Support/Allocator.cpp b/llvm/lib/Support/Allocator.cpp
index ba6a393c81f..584ca125b73 100644
--- a/llvm/lib/Support/Allocator.cpp
+++ b/llvm/lib/Support/Allocator.cpp
@@ -12,6 +12,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Support/Allocator.h"
+#include "llvm/Support/Recycler.h"
 #include "llvm/Support/DataTypes.h"
 #include "llvm/Support/Streams.h"
 #include <ostream>
@@ -130,3 +131,9 @@ void BumpPtrAllocator::PrintStats() const {
   cerr << "\nNumber of memory regions: " << NumRegions << "\n";
   cerr << "Bytes allocated: " << BytesUsed << "\n";
 }
+
+void llvm::PrintRecyclerStats(size_t LargestTypeSize,
+                              size_t FreeListSize) {
+  cerr << "Recycler element size: " << LargestTypeSize << '\n';
+  cerr << "Number of elements free for recycling: " << FreeListSize << '\n';
+}