Enhance clang_getCXTUResourceUsage() to report the amount of memory used by SourceManager's content cache allocator.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130380 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 10 insertions, 0 deletions

diff --git a/include/clang/Basic/SourceManager.h b/include/clang/Basic/SourceManager.h
index 653142dbee..1907ed5cc6 100644
--- a/include/clang/Basic/SourceManager.h
+++ b/include/clang/Basic/SourceManager.h
@@ -850,6 +850,16 @@ public:
   LineTableInfo &getLineTable();
 
   //===--------------------------------------------------------------------===//
+  // Queries for performance analysis.
+  //===--------------------------------------------------------------------===//
+
+  /// Return the total amount of physical memory allocated by the
+  /// ContentCache allocator.
+  size_t getContentCacheSize() const {
+    return ContentCacheAlloc.getTotalMemory();
+  }
+
+  //===--------------------------------------------------------------------===//
   // Other miscellaneous methods.
   //===--------------------------------------------------------------------===//