Add missing forward declarations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143717 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/Analysis/CodeMetrics.h b/include/llvm/Analysis/CodeMetrics.h
index d96dd82b3591400968c25eed93bc5434c266a053..5f78021f3d212bea67528c3184c27284cf373514 100644 (file)
--- a/include/llvm/Analysis/CodeMetrics.h
+++ b/include/llvm/Analysis/CodeMetrics.h
@@ -19,7 +19,10 @@
 
 namespace llvm {
 
+  class BasicBlock;
+  class Function;
   class TargetData;
+  class Value;
 
   // CodeMetrics - Calculate size and a few similar metrics for a set of
   // basic blocks.