Local static variables must be available module-wise

as they are accessible in static methods in a class
local to the same function. Fixes PR6769.

llvm-svn: 101756

3 files changed, 12 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/CGDecl.cpp b/clang/lib/CodeGen/CGDecl.cpp
index 07d219f1fbf..58b90929f04 100644
--- a/clang/lib/CodeGen/CGDecl.cpp
+++ b/clang/lib/CodeGen/CGDecl.cpp
@@ -205,6 +205,7 @@ void CodeGenFunction::EmitStaticBlockVarDecl(const VarDecl &D,
   // Store into LocalDeclMap before generating initializer to handle
   // circular references.
   DMEntry = GV;
+  CGM.setStaticLocalDeclMap(&D, GV);
 
   // Make sure to evaluate VLA bounds now so that we have them for later.
   //
diff --git a/clang/lib/CodeGen/CGExpr.cpp b/clang/lib/CodeGen/CGExpr.cpp
index 68f09e2d290..257f2fc4f2f 100644
--- a/clang/lib/CodeGen/CGExpr.cpp
+++ b/clang/lib/CodeGen/CGExpr.cpp
@@ -1106,6 +1106,8 @@ LValue CodeGenFunction::EmitDeclRefLValue(const DeclRefExpr *E) {
     bool NonGCable = VD->hasLocalStorage() && !VD->hasAttr<BlocksAttr>();
 
     llvm::Value *V = LocalDeclMap[VD];
+    if (!V && VD->isStaticLocal()) 
+      V = CGM.getStaticLocalDeclMap(VD);
     assert(V && "DeclRefExpr not entered in LocalDeclMap?");
 
     Qualifiers Quals = MakeQualifiers(E->getType());
diff --git a/clang/lib/CodeGen/CodeGenModule.h b/clang/lib/CodeGen/CodeGenModule.h
index 8db5a588d07..022360bfc52 100644
--- a/clang/lib/CodeGen/CodeGenModule.h
+++ b/clang/lib/CodeGen/CodeGenModule.h
@@ -133,6 +133,7 @@ class CodeGenModule : public BlockModule {
 
   llvm::StringMap<llvm::Constant*> CFConstantStringMap;
   llvm::StringMap<llvm::Constant*> ConstantStringMap;
+  llvm::DenseMap<const Decl*, llvm::Value*> StaticLocalDeclMap;
 
   /// CXXGlobalInits - Global variables with initializers that need to run
   /// before main.
@@ -170,6 +171,14 @@ public:
   /// been configured.
   bool hasObjCRuntime() { return !!Runtime; }
 
+  llvm::Value *getStaticLocalDeclMap(const VarDecl *VD) {
+    return StaticLocalDeclMap[VD];
+  }
+  void setStaticLocalDeclMap(const VarDecl *D, 
+                             llvm::GlobalVariable *GV) {
+    StaticLocalDeclMap[D] = GV;
+  }
+
   CGDebugInfo *getDebugInfo() { return DebugInfo; }
   ASTContext &getContext() const { return Context; }
   const CodeGenOptions &getCodeGenOpts() const { return CodeGenOpts; }