[analyzer] Add a statistic for the number of times we reach the max
number of steps in the work list.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152960 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/StaticAnalyzer/Core/CoreEngine.cpp b/lib/StaticAnalyzer/Core/CoreEngine.cpp
index 326ecbf..40af96a 100644
--- a/lib/StaticAnalyzer/Core/CoreEngine.cpp
+++ b/lib/StaticAnalyzer/Core/CoreEngine.cpp
@@ -12,6 +12,8 @@
//
//===----------------------------------------------------------------------===//
+#define DEBUG_TYPE "CoreEngine"
+
#include "clang/StaticAnalyzer/Core/PathSensitive/AnalysisManager.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CoreEngine.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/ExprEngine.h"
@@ -20,9 +22,14 @@
#include "clang/AST/StmtCXX.h"
#include "llvm/Support/Casting.h"
#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/Statistic.h"
+
using namespace clang;
using namespace ento;
+STATISTIC(NumReachedMaxSteps,
+ "The # of times we reached the max number of steps.");
+
//===----------------------------------------------------------------------===//
// Worklist classes for exploration of reachable states.
//===----------------------------------------------------------------------===//
@@ -187,8 +194,10 @@
while (WList->hasWork()) {
if (!UnlimitedSteps) {
- if (Steps == 0)
+ if (Steps == 0) {
+ NumReachedMaxSteps++;
break;
+ }
--Steps;
}