From fd035e6496665b1f1197868e21cb0a4594e8db6e Mon Sep 17 00:00:00 2001
From: rdivacky <rdivacky@FreeBSD.org>
Date: Tue, 16 Feb 2010 09:31:36 +0000
Subject: Update clang to r96341.

---
 lib/Analysis/AnalysisContext.cpp | 48 +++++++++++++++++++---------------------
 1 file changed, 23 insertions(+), 25 deletions(-)

(limited to 'lib/Analysis/AnalysisContext.cpp')

diff --git a/lib/Analysis/AnalysisContext.cpp b/lib/Analysis/AnalysisContext.cpp
index ad9f6dd..ccd5088 100644
--- a/lib/Analysis/AnalysisContext.cpp
+++ b/lib/Analysis/AnalysisContext.cpp
@@ -12,10 +12,9 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "clang/Analysis/PathSensitive/AnalysisContext.h"
-#include "clang/Analysis/PathSensitive/MemRegion.h"
-#include "clang/Analysis/Analyses/LiveVariables.h"
 #include "clang/Analysis/CFG.h"
+#include "clang/Analysis/AnalysisContext.h"
+#include "clang/Analysis/Analyses/LiveVariables.h"
 #include "clang/AST/Decl.h"
 #include "clang/AST/DeclObjC.h"
 #include "clang/AST/DeclTemplate.h"
@@ -87,12 +86,6 @@ AnalysisContext *AnalysisContextManager::getContext(const Decl *D) {
   return AC;
 }
 
-const BlockDecl *BlockInvocationContext::getBlockDecl() const {
-  return Data.is<const BlockDataRegion*>() ?
-    Data.get<const BlockDataRegion*>()->getDecl()
-  : Data.get<const BlockDecl*>();
-}
-
 //===----------------------------------------------------------------------===//
 // FoldingSet profiling.
 //===----------------------------------------------------------------------===//
@@ -117,11 +110,7 @@ void ScopeContext::Profile(llvm::FoldingSetNodeID &ID) {
 }
 
 void BlockInvocationContext::Profile(llvm::FoldingSetNodeID &ID) {
-  if (const BlockDataRegion *BR = getBlockRegion())
-    Profile(ID, getAnalysisContext(), getParent(), BR);
-  else
-    Profile(ID, getAnalysisContext(), getParent(),
-            Data.get<const BlockDecl*>());    
+  Profile(ID, getAnalysisContext(), getParent(), BD);
 }
 
 //===----------------------------------------------------------------------===//
@@ -170,15 +159,6 @@ LocationContextManager::getScope(AnalysisContext *ctx,
   return getLocationContext<ScopeContext, Stmt>(ctx, parent, s);
 }
 
-const BlockInvocationContext *
-LocationContextManager::getBlockInvocation(AnalysisContext *ctx,
-                                 const LocationContext *parent,
-                                 const BlockDataRegion *BR) {
-  return getLocationContext<BlockInvocationContext, BlockDataRegion>(ctx,
-                                                                     parent,
-                                                                     BR);
-}
-
 //===----------------------------------------------------------------------===//
 // LocationContext methods.
 //===----------------------------------------------------------------------===//
@@ -214,6 +194,7 @@ namespace {
 class FindBlockDeclRefExprsVals : public StmtVisitor<FindBlockDeclRefExprsVals>{
   BumpVector<const VarDecl*> &BEVals;
   BumpVectorContext &BC;
+  llvm::DenseMap<const VarDecl*, unsigned> Visited;
 public:
   FindBlockDeclRefExprsVals(BumpVector<const VarDecl*> &bevals,
                             BumpVectorContext &bc)
@@ -224,10 +205,27 @@ public:
       if (Stmt *child = *I)
         Visit(child);
   }
+
+  void VisitDeclRefExpr(const DeclRefExpr *DR) {
+    // Non-local variables are also directly modified.
+    if (const VarDecl *VD = dyn_cast<VarDecl>(DR->getDecl()))
+      if (!VD->hasLocalStorage()) {
+        unsigned &flag = Visited[VD];
+        if (!flag) {
+          flag = 1;
+          BEVals.push_back(VD, BC);
+        }
+      }
+  }
   
   void VisitBlockDeclRefExpr(BlockDeclRefExpr *DR) {
-    if (const VarDecl *VD = dyn_cast<VarDecl>(DR->getDecl()))
-      BEVals.push_back(VD, BC);
+    if (const VarDecl *VD = dyn_cast<VarDecl>(DR->getDecl())) {
+      unsigned &flag = Visited[VD];
+      if (!flag) {
+        flag = 1;
+        BEVals.push_back(VD, BC);
+      }
+    }
   }
 };  
 } // end anonymous namespace
-- 
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