Add BumpPtrAllocator::getTotalMemory() to allow clients to query how …

…much memory a BumpPtrAllocator allocated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129727 91177308-0d34-0410-b5e6-96231b3b80d8
stev47 · Apr 18, 2011 · 1da29dd · 1da29dd
1 parent 1fc7a24
commit 1da29dd
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Showing 2 changed files with 11 additions and 0 deletions.
diff --git a/include/llvm/Support/Allocator.h b/include/llvm/Support/Allocator.h
@@ -177,6 +177,9 @@ class BumpPtrAllocator {
   unsigned GetNumSlabs() const;
 
   void PrintStats() const;
+
+  /// Compute the total physical memory allocated by this allocator.
+  size_t getTotalMemory() const;
 };
 
 /// SpecificBumpPtrAllocator - Same as BumpPtrAllocator but allows only

diff --git a/lib/Support/Allocator.cpp b/lib/Support/Allocator.cpp
@@ -136,6 +136,14 @@ unsigned BumpPtrAllocator::GetNumSlabs() const {
   return NumSlabs;
 }
 
+size_t BumpPtrAllocator::getTotalMemory() const {
+  size_t TotalMemory = 0;
+  for (MemSlab *Slab = CurSlab; Slab != 0; Slab = Slab->NextPtr) {
+    TotalMemory += Slab->Size;
+  }
+  return TotalMemory;
+}
+
 void BumpPtrAllocator::PrintStats() const {
   unsigned NumSlabs = 0;
   size_t TotalMemory = 0;