Add source-level dominators analysis. Patch by Guoping Long!
llvm-svn: 142885
diff --git a/clang/lib/StaticAnalyzer/Checkers/Checkers.td b/clang/lib/StaticAnalyzer/Checkers/Checkers.td
index d53e0b8..0524a2d 100644
--- a/clang/lib/StaticAnalyzer/Checkers/Checkers.td
+++ b/clang/lib/StaticAnalyzer/Checkers/Checkers.td
@@ -359,6 +359,10 @@
let ParentPackage = Debug in {
+def DominatorsTreeDumper : Checker<"DumpDominators">,
+ HelpText<"Print the dominance tree for a given CFG">,
+ DescFile<"DebugCheckers.cpp">;
+
def LiveVariablesDumper : Checker<"DumpLiveVars">,
HelpText<"Print results of live variable analysis">,
DescFile<"DebugCheckers.cpp">;
diff --git a/clang/lib/StaticAnalyzer/Checkers/DebugCheckers.cpp b/clang/lib/StaticAnalyzer/Checkers/DebugCheckers.cpp
index d9d5694..c06be44 100644
--- a/clang/lib/StaticAnalyzer/Checkers/DebugCheckers.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/DebugCheckers.cpp
@@ -15,11 +15,34 @@
#include "clang/StaticAnalyzer/Core/Checker.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/AnalysisManager.h"
#include "clang/Analysis/Analyses/LiveVariables.h"
+#include "clang/Analysis/Analyses/Dominators.h"
using namespace clang;
using namespace ento;
//===----------------------------------------------------------------------===//
+// DominatorsTreeDumper
+//===----------------------------------------------------------------------===//
+
+namespace {
+class DominatorsTreeDumper : public Checker<check::ASTCodeBody> {
+public:
+ void checkASTCodeBody(const Decl *D, AnalysisManager& mgr,
+ BugReporter &BR) const {
+ if (AnalysisDeclContext *AC = mgr.getAnalysisDeclContext(D)) {
+ DominatorTree dom(*AC);
+ dom.BuildDominatorTree();
+ dom.dump();
+ }
+ }
+};
+}
+
+void ento::registerDominatorsTreeDumper(CheckerManager &mgr) {
+ mgr.registerChecker<DominatorsTreeDumper>();
+}
+
+//===----------------------------------------------------------------------===//
// LiveVariablesDumper
//===----------------------------------------------------------------------===//