CodeGen: Improve warnings about uninstrumented files when profiling

Improve the warning when building with -fprofile-instr-use and a file
appears not to have been profiled at all. This keys on whether a
function is defined in the main file or not to avoid false negatives
when one includes a header with functions that have been profiled.

llvm-svn: 211760

1 files changed, 2 insertions, 1 deletions

diff --git a/clang/lib/CodeGen/CodeGenPGO.h b/clang/lib/CodeGen/CodeGenPGO.h
index c4348085882..2f4aa660bea 100644
--- a/clang/lib/CodeGen/CodeGenPGO.h
+++ b/clang/lib/CodeGen/CodeGenPGO.h
@@ -118,7 +118,8 @@ private:
   void computeRegionCounts(const Decl *D);
   void applyFunctionAttributes(llvm::IndexedInstrProfReader *PGOReader,
                                llvm::Function *Fn);
-  void loadRegionCounts(llvm::IndexedInstrProfReader *PGOReader);
+  void loadRegionCounts(llvm::IndexedInstrProfReader *PGOReader,
+                        bool IsInMainFile);
   void emitCounterVariables();
   llvm::GlobalVariable *buildDataVar();