Add support to describe template parameter type in debug info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124752 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 5c63ab5..28c41f8 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -1151,6 +1151,18 @@
DIDescriptor Context = CTy.getContext();
addToContextOwner(&Buffer, Context);
}
+
+ if (Tag == dwarf::DW_TAG_class_type) {
+ DIArray TParams = CTy.getTemplateParams();
+ unsigned N = TParams.getNumElements();
+ // Add template parameters.
+ for (unsigned i = 0; i < N; ++i) {
+ DIDescriptor Element = TParams.getElement(i);
+ if (Element.isTemplateTypeParameter())
+ Buffer.addChild(getOrCreateTemplateTypeParameterDIE(
+ DITemplateTypeParameter(Element)));
+ }
+ }
break;
}
default:
@@ -1181,6 +1193,21 @@
}
}
+/// getOrCreateTemplateTypeParameterDIE - Find existing DIE or create new DIE
+/// for the given DITemplateTypeParameter.
+DIE *
+DwarfDebug::getOrCreateTemplateTypeParameterDIE(DITemplateTypeParameter TP) {
+ CompileUnit *TypeCU = getCompileUnit(TP);
+ DIE *ParamDIE = TypeCU->getDIE(TP);
+ if (ParamDIE)
+ return ParamDIE;
+
+ ParamDIE = new DIE(dwarf::DW_TAG_template_type_parameter);
+ addType(ParamDIE, TP.getType());
+ addString(ParamDIE, dwarf::DW_AT_name, dwarf::DW_FORM_string, TP.getName());
+ 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 73451ef..5d2fb5b 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -52,6 +52,7 @@
class DINameSpace;
class DISubrange;
class DICompositeType;
+class DITemplateTypeParameter;
//===----------------------------------------------------------------------===//
/// SrcLineInfo - This class is used to record source line correspondence.
@@ -342,6 +343,10 @@
/// given DIType.
DIE *getOrCreateTypeDIE(DIType Ty);
+ /// getOrCreateTemplateTypeParameterDIE - Find existing DIE or create new DIE
+ /// for the given DITemplateTypeParameter.
+ DIE *getOrCreateTemplateTypeParameterDIE(DITemplateTypeParameter TP);
+
void addPubTypes(DISubprogram SP);
/// constructTypeDIE - Construct basic type die from DIBasicType.