[analyzer] Add -analyzer-stats, which hooks up LLVM stats tracking.

As in http://llvm.org/docs/ProgrammersManual.html#Statistic

llvm-svn: 151570

2 files changed, 4 insertions, 0 deletions

diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 862a6547f82..c46c52c7bdd 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -1043,6 +1043,7 @@ static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
   Opts.MaxLoop = Args.getLastArgIntValue(OPT_analyzer_max_loop, 4, Diags);
   Opts.EagerlyTrimEGraph = !Args.hasArg(OPT_analyzer_no_eagerly_trim_egraph);
   Opts.InlineCall = Args.hasArg(OPT_analyzer_inline_call);
+  Opts.PrintStats = Args.hasArg(OPT_analyzer_stats);
 
   Opts.CheckersControlList.clear();
   for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker,
diff --git a/clang/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp b/clang/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
index 93c879ee96a..074ad23ce46 100644
--- a/clang/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
+++ b/clang/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
@@ -35,6 +35,7 @@
 #include "llvm/Support/Path.h"
 #include "llvm/Support/Program.h"
 #include "llvm/ADT/OwningPtr.h"
+#include "llvm/ADT/Statistic.h"
 
 using namespace clang;
 using namespace ento;
@@ -157,6 +158,8 @@ public:
                                   Opts.UnoptimizedCFG, Opts.CFGAddImplicitDtors,
                                   Opts.CFGAddInitializers,
                                   Opts.EagerlyTrimEGraph));
+    if (Opts.PrintStats)
+      llvm::EnableStatistics();
   }
 
   virtual void HandleTranslationUnit(ASTContext &C);