Migrate CFGReachabilityAnalysis out of the IdempotentOperationsChecker and into its own analysis file.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126289 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 13 insertions, 0 deletions

diff --git a/lib/Analysis/AnalysisContext.cpp b/lib/Analysis/AnalysisContext.cpp
index a982a5c5be..62097ef20d 100644
--- a/lib/Analysis/AnalysisContext.cpp
+++ b/lib/Analysis/AnalysisContext.cpp
@@ -19,6 +19,7 @@
 #include "clang/AST/StmtVisitor.h"
 #include "clang/Analysis/Analyses/LiveVariables.h"
 #include "clang/Analysis/Analyses/PseudoConstantAnalysis.h"
+#include "clang/Analysis/Analyses/CFGReachabilityAnalysis.h"
 #include "clang/Analysis/AnalysisContext.h"
 #include "clang/Analysis/CFG.h"
 #include "clang/Analysis/CFGStmtMap.h"
@@ -98,7 +99,18 @@ CFGStmtMap *AnalysisContext::getCFGStmtMap() {
     
   return 0;
 }
+
+CFGReachabilityAnalysis *AnalysisContext::getCFGReachablityAnalysis() {
+  if (CFA)
+    return CFA;
+  
+  if (CFG *c = getCFG()) {
+    CFA = new CFGReachabilityAnalysis(*c);
+    return CFA;
+  }
   
+  return 0;
+}
 
 void AnalysisContext::dumpCFG() {
     getCFG()->dump(getASTContext().getLangOptions());
@@ -365,6 +377,7 @@ AnalysisContext::~AnalysisContext() {
   delete relaxedLiveness;
   delete PM;
   delete PCA;
+  delete CFA;
   delete ReferencedBlockVars;
 }