Add support to describe template value parameter in debug info.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124755 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 25 insertions, 0 deletions

diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 28c41f8..d8c15fb 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -1161,6 +1161,9 @@ void DwarfDebug::constructTypeDIE(DIE &Buffer, DICompositeType CTy) {
         if (Element.isTemplateTypeParameter())
           Buffer.addChild(getOrCreateTemplateTypeParameterDIE(
                             DITemplateTypeParameter(Element)));
+        else if (Element.isTemplateValueParameter())
+          Buffer.addChild(getOrCreateTemplateValueParameterDIE(
+                            DITemplateValueParameter(Element)));
       }
     }
     break;
@@ -1208,6 +1211,23 @@ DwarfDebug::getOrCreateTemplateTypeParameterDIE(DITemplateTypeParameter TP) {
   return ParamDIE;
 }
 
+/// getOrCreateTemplateValueParameterDIE - Find existing DIE or create new DIE 
+/// for the given DITemplateValueParameter.
+DIE *
+DwarfDebug::getOrCreateTemplateValueParameterDIE(DITemplateValueParameter TPV) {
+  CompileUnit *TVCU = getCompileUnit(TPV);
+  DIE *ParamDIE = TVCU->getDIE(TPV);
+  if (ParamDIE)
+    return ParamDIE;
+
+  ParamDIE = new DIE(dwarf::DW_TAG_template_value_parameter);
+  addType(ParamDIE, TPV.getType());
+  addString(ParamDIE, dwarf::DW_AT_name, dwarf::DW_FORM_string, TPV.getName());
+  addUInt(ParamDIE, dwarf::DW_AT_const_value, dwarf::DW_FORM_udata, 
+          TPV.getValue());
+  return ParamDIE;
+}
+
 /// constructSubrangeDIE - Construct subrange DIE from DISubrange.
 void DwarfDebug::constructSubrangeDIE(DIE &Buffer, DISubrange SR, DIE *IndexTy){
   int64_t L = SR.getLo();
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.h b/lib/CodeGen/AsmPrinter/DwarfDebug.h
index 5d2fb5b..6a01e4b 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -53,6 +53,7 @@ class DINameSpace;
 class DISubrange;
 class DICompositeType;
 class DITemplateTypeParameter;
+class DITemplateValueParameter;
 
 //===----------------------------------------------------------------------===//
 /// SrcLineInfo - This class is used to record source line correspondence.
@@ -347,6 +348,10 @@ private:
   /// for the given DITemplateTypeParameter.
   DIE *getOrCreateTemplateTypeParameterDIE(DITemplateTypeParameter TP);
 
+  /// getOrCreateTemplateValueParameterDIE - Find existing DIE or create new DIE 
+  /// for the given DITemplateValueParameter.
+  DIE *getOrCreateTemplateValueParameterDIE(DITemplateValueParameter TVP);
+
   void addPubTypes(DISubprogram SP);
 
   /// constructTypeDIE - Construct basic type die from DIBasicType.