[llvm-commits] [llvm] r83344 - in /llvm/trunk/lib/CodeGen/AsmPrinter: DwarfDebug.cpp DwarfDebug.h

[Devang Patel]

Author: dpatel
Date: Mon Oct  5 18:40:42 2009
New Revision: 83344

URL: http://llvm.org/viewvc/llvm-project?rev=83344&view=rev
Log:
Adjust context for the global variables that are not at file scope, e.g.
void foo() { static int bar = 42; }
Here, foo's DIE is parent of bar's DIE.

Modified:
    llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
    llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h

Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp?rev=83344&r1=83343&r2=83344&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp (original)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp Mon Oct  5 18:40:42 2009
@@ -1477,6 +1477,17 @@
   }
 
   ConstructDbgScope(RootScope, 0, 0, SPDie, ModuleCU);
+  // If there are global variables at this scope then add their dies.
+  for (SmallVector<WeakVH, 4>::iterator SGI = ScopedGVs.begin(), 
+       SGE = ScopedGVs.end(); SGI != SGE; ++SGI) {
+    MDNode *N = dyn_cast_or_null<MDNode>(*SGI);
+    if (!N) continue;
+    DIGlobalVariable GV(N);
+    if (GV.getContext().getNode() == RootScope->getDesc().getNode()) {
+      DIE *ScopedGVDie = CreateGlobalVariableDIE(ModuleCU, GV);
+      SPDie->AddChild(ScopedGVDie);
+    }
+  }
 }
 
 /// ConstructDefaultDbgScope - Construct a default scope for the subprogram.
@@ -1667,8 +1678,13 @@
 
   // Create DIEs for each of the externally visible global variables.
   for (DebugInfoFinder::iterator I = DbgFinder.global_variable_begin(),
-         E = DbgFinder.global_variable_end(); I != E; ++I)
-    ConstructGlobalVariableDIE(*I);
+         E = DbgFinder.global_variable_end(); I != E; ++I) {
+    DIGlobalVariable GV(*I);
+    if (GV.getContext().getNode() != GV.getCompileUnit().getNode())
+      ScopedGVs.push_back(*I);
+    else
+      ConstructGlobalVariableDIE(*I);
+  }
 
   // Create DIEs for each of the externally visible subprograms.
   for (DebugInfoFinder::iterator I = DbgFinder.subprogram_begin(),

Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h?rev=83344&r1=83343&r2=83344&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h (original)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h Mon Oct  5 18:40:42 2009
@@ -141,6 +141,10 @@
   /// DbgScopeMap - Tracks the scopes in the current function.
   DenseMap<MDNode *, DbgScope *> DbgScopeMap;
 
+  /// ScopedGVs - Tracks global variables that are not at file scope.
+  /// For example void f() { static int b = 42; }
+  SmallVector<WeakVH, 4> ScopedGVs;
+
   typedef DenseMap<const MachineInstr *, SmallVector<DbgScope *, 2> > 
     InsnToDbgScopeMapTy;