Use line and column number to distinguish two lexical blocks at the same level.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96395 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 13 insertions, 7 deletions

diff --git a/include/llvm/Analysis/DebugInfo.h b/include/llvm/Analysis/DebugInfo.h
index ccf0105c21..f105c20ff2 100644
--- a/include/llvm/Analysis/DebugInfo.h
+++ b/include/llvm/Analysis/DebugInfo.h
@@ -459,9 +459,11 @@ namespace llvm {
       if (DbgNode && !isLexicalBlock())
         DbgNode = 0;
     }
-    DIScope getContext() const       { return getFieldAs<DIScope>(1); }
-    StringRef getDirectory() const { return getContext().getDirectory(); }
-    StringRef getFilename() const  { return getContext().getFilename(); }
+    DIScope getContext() const       { return getFieldAs<DIScope>(1);      }
+    StringRef getDirectory() const   { return getContext().getDirectory(); }
+    StringRef getFilename() const    { return getContext().getFilename();  }
+    unsigned getLineNumber() const   { return getUnsignedField(2);         }
+    unsigned getColumnNumber() const { return getUnsignedField(3);         }
   };
 
   /// DINameSpace - A wrapper for a C++ style name space.
@@ -636,7 +638,8 @@ namespace llvm {
 
     /// CreateLexicalBlock - This creates a descriptor for a lexical block
     /// with the specified parent context.
-    DILexicalBlock CreateLexicalBlock(DIDescriptor Context);
+    DILexicalBlock CreateLexicalBlock(DIDescriptor Context, unsigned Line = 0,
+                                      unsigned Col = 0);
 
     /// CreateNameSpace - This creates new descriptor for a namespace
     /// with the specified parent context.
diff --git a/lib/Analysis/DebugInfo.cpp b/lib/Analysis/DebugInfo.cpp
index 258f1dbc63..5cfe666b15 100644
--- a/lib/Analysis/DebugInfo.cpp
+++ b/lib/Analysis/DebugInfo.cpp
@@ -1007,12 +1007,15 @@ DIVariable DIFactory::CreateComplexVariable(unsigned Tag, DIDescriptor Context,
 
 /// CreateBlock - This creates a descriptor for a lexical block with the
 /// specified parent VMContext.
-DILexicalBlock DIFactory::CreateLexicalBlock(DIDescriptor Context) {
+DILexicalBlock DIFactory::CreateLexicalBlock(DIDescriptor Context,
+                                             unsigned LineNo, unsigned Col) {
   Value *Elts[] = {
     GetTagConstant(dwarf::DW_TAG_lexical_block),
-    Context.getNode()
+    Context.getNode(),
+    ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
+    ConstantInt::get(Type::getInt32Ty(VMContext), Col)
   };
-  return DILexicalBlock(MDNode::get(VMContext, &Elts[0], 2));
+  return DILexicalBlock(MDNode::get(VMContext, &Elts[0], 4));
 }
 
 /// CreateNameSpace - This creates new descriptor for a namespace