Initialize debug info for special cases of functions that lack declarations and are generated by Clang (global initializers/destructors, thunks) . Fixes PR13942.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166676 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 12 insertions, 0 deletions

diff --git a/lib/CodeGen/CGDeclCXX.cpp b/lib/CodeGen/CGDeclCXX.cpp
index 9f7ee1ecee..67f710db0e 100644
--- a/lib/CodeGen/CGDeclCXX.cpp
+++ b/lib/CodeGen/CGDeclCXX.cpp
@@ -163,6 +163,9 @@ static llvm::Constant *createAtExitStub(CodeGenModule &CGM,
 
   CodeGenFunction CGF(CGM);
 
+  // Initialize debug info if needed.
+  CGF.maybeInitializeDebugInfo();
+
   CGF.StartFunction(GlobalDecl(), CGM.getContext().VoidTy, fn,
                     CGM.getTypes().arrangeNullaryFunction(),
                     FunctionArgList(), SourceLocation());
@@ -345,6 +348,9 @@ void CodeGenFunction::GenerateCXXGlobalVarDeclInitFunc(llvm::Function *Fn,
 void CodeGenFunction::GenerateCXXGlobalInitFunc(llvm::Function *Fn,
                                                 llvm::Constant **Decls,
                                                 unsigned NumDecls) {
+  // Initialize debug info if needed.
+  maybeInitializeDebugInfo();
+
   StartFunction(GlobalDecl(), getContext().VoidTy, Fn,
                 getTypes().arrangeNullaryFunction(),
                 FunctionArgList(), SourceLocation());
@@ -370,6 +376,9 @@ void CodeGenFunction::GenerateCXXGlobalInitFunc(llvm::Function *Fn,
 void CodeGenFunction::GenerateCXXGlobalDtorsFunc(llvm::Function *Fn,
                   const std::vector<std::pair<llvm::WeakVH, llvm::Constant*> >
                                                 &DtorsAndObjects) {
+  // Initialize debug info if needed.
+  maybeInitializeDebugInfo();
+
   StartFunction(GlobalDecl(), getContext().VoidTy, Fn,
                 getTypes().arrangeNullaryFunction(),
                 FunctionArgList(), SourceLocation());
@@ -406,6 +415,9 @@ CodeGenFunction::generateDestroyHelper(llvm::Constant *addr,
   llvm::Function *fn = 
     CreateGlobalInitOrDestructFunction(CGM, FTy, "__cxx_global_array_dtor");
 
+  // Initialize debug info if needed.
+  maybeInitializeDebugInfo();
+
   StartFunction(GlobalDecl(), getContext().VoidTy, fn, FI, args,
                 SourceLocation());